Lennox CHP16-024, CHA16-030, CHA16-060, CHA16-036, CHP16-030 Service Manual

...

CHA/CHP16

Service Literature

Corp. 0109-L2

CHA/CHP16, CHP20 SERIES UNITS

CHA/CHP16 and CHP20 series units in the 2 through 5 ton (7.0 through 17.6 kW) sizes are designed for outdoor roofĆ top or ground level installations in light commercial applicaĆ tions. Electric heat is available in several kW sizes. Models are available in single or three phase power supply and can be utilized in downflow or horizontal supply and return air.

CHA/CHP16-024/030 model units are equipped with a reciprocating compressor. CHA/CHP16-036/060 and CHP20-024/060 model units are equipped with scroll compressors. The scroll compressor offers high voluĆ metric efficiency, quiet operation and the ability to start under system load. Continuous flank contact, mainĆ tained by centrifugal force, minimizes gas leakage and maximizes efficiency. The motor is internally protected from excessive current and temperature.

CHA/CHP16 and CHP20 model units are designed to acĆ cept any of several different thermostat control systems with minimum field wiring. Control options such as econĆ omizer, warm up kit, Honeywell T7300 thermostat or Honeywell T8600/T8611/T8621 thermostat controls connect to the unit with jackĆplugs. When plugged in the controls become an integral part of the unit wiring. Low voltage thermostat connections facilitate thermostat field wiring.

Optional electric heat is field installed. Electric heat operĆ ates in single or multiple stages depending on the kW size. 5kW through 25 kW sizes are available for the CHA/CHP16 and CHP20 units. Information in this manual is for use by a qualified service technicial only. All specifications in this manual are subject to change. Procedures outlined in this manual are repesĆ ented as a recommendation only and do not supersede or replace state or local codes.

2 to 5 ton (7.0 to 17.6 kW)

CHP20

IMPORTANT

Improper installation, adjustment, alteration, service or maintenance can cause property damage, personĆ al injury or loss of life. Installation and service must be performed by a qualified installer, service agency or the gas supplier.

WARNING

Electric shock hazard. Can cause injury or death. Before attempting to perform any service or maintenance, turn the electrical power to unit OFF at disconĆ nect switch(es). Unit may have multiple power supplies.

Page 1

WARNING

Refrigerant can be harmful if it is inhaled. Refrigerant must be used and recovered responsibly.

Failure to follow this warning may result in personal injury or death.

 2001 Lennox Industries Inc.

Litho U.S.A.

TABLE OF CONTENTS

GENERAL 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SPECIFICATIONS CHA16 3. . . . . . . . . . . . . . . . . .

SPECIFICATIONS CHP16 4. . . . . . . . . . . . . . . . .

SPECIFICATIONS CHP20 5. . . . . . . . . . . . . . . . . .

OPTIONAL ACCESSORIES CHA/CHP16 6. . . .

OPTIONAL ACCESSORIES CHP20 7. . . . . . . . .

ELECTRICAL DATA CHA16 8. . . . . . . . . . . . . . . .

ELECTRICAL DATA CHP16/20 9. . . . . . . . . . . . .

BLOWER DATA CHA16 10. . . . . . . . . . . . . . . . . . . .

BLOWER DATA CHP16/20 13. . . . . . . . . . . . . . . . .

ACCESSORIES BLOWER DATA 16. . . . . . . . . . . .

I APPLICATION 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ELECTROSTATIC DISCHARGE (ESD)

Precautions and Procedures

II UNIT COMPONENETS 18. . . . . . . . . . . . . . . . . . . . . .

Control Box 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cooling Components 22. . . . . . . . . . . . . . . . . . . . . . .

Condenser Fan and Indoor Blower 27. . . . . . . . . . .

III OPTIONAL ELECTRIC HEAT 28. . . . . . . . . . . . . . . .

IV PLACEMENT AND INSTALLATION 43. . . . . . . . . . .

V ELECTRICAL CONNECTIONS 43. . . . . . . . . . . . . . .

VI START UP 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

VII COOLING SYSTEM SERVICE CHECKS 43. . . . . .

VIII HEATING SYSTEM SERVICE CHECKS 44. . . . . .

IX INDOOR BLOWER OPERATION 44. . . . . . . . . . . . .

X MAINTENANCE 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

XI ACCESSORIES 46. . . . . . . . . . . . . . . . . . . . . . . . . . . .

XII WIRING AND OPERATION SEQUENCE 52. . . . . .

CAUTION

Electrostatic discharge can affect electronic components. Take precautions during unit installation and service to protect the unit's elecĆ tronic controls. Precautions will help to avoid control exposure to electrostatic discharge by putting the unit , the control and the technician at the same electrostatic potential. Neutralize elecĆ trostatic charge by touching hand and all tools on an unpainted unit surface, such as the blower deck, before performing any service procedure.

Page 2

SPECIFICATIONS CHA16

Certified

Ratings

Coil

Net face area

Condenser

ECH16R-5

ECH16R-7

ECH16R-10

Electric

Ratings

Model No. CHA16Ć024 CHA16Ć030 CHA16-036 CHA16-048 CHA16-060

Nominal Tonnage 2 2-1/2 3 4 5

Cooling capacity - Btuh (kW) 22,200 (6.5) 27,600 (8.1) 35,200 (10.3) 45,000 (13.2) 57,000 (16.5)

LARI

Certified

Cooling Ratin

*Sound Rating Number (db) 80 82

Total unit watts 2550 3210 4045 4890 6065

SEER (Btuh/Watts) 10.0 10.25

EER (Btuh/Watts) 8.7 8.6 8.7 9.2 9.4

Refrigerant Charge (HCFC-22)

Blower wheel nominal

Evaporator

Blower

Evaporator

Coil

Condenser

Coil

Condenser

Fan

Condensate drain size mpt - in. (mm) 3/4 (19)

No. & size of cleanable polyurethane filters - in. (mm) (1) 16 x 25 x 1 (406 x 635 x 25) (1) 20 x 25 x 1 (508 x 635 x 25)

diameter x width in. (mm)

Motor horsepower (W) 1/3 (249) 1/2 (373) 3/4 (560)

Net face area - ft.2 (m2) 3.2 (0.30) 4.1 (0.38) 5.8 (0.54)

Tube diameter - in. (mm) & No. of rows 3/8 (9.5) - 2

Fins per inch (m) 15 (591) 17 (669) 15 (591)

Net face area

ft.2 (m2)

Tube diameter - in. (mm) & No. of rows 3/8 (9.5) - 1 3/8 (9.5) - 2 3/8 (9.5) - 1.4 3/8 (9.5) - 2

Fins per inch (m) 20 (787)

Diameter - in. (mm) & No. of blades 20 (508) - 4 24 (610) - 4

Air volume - cfm (L/s) 2400 (1135) 2200 (1040) 4000 (1890) 3600 (1700)

Motor horsepower (W) 1/6 (124) 1/4 (187)

Motor watts 230 220 340 330

Outer coil 8.6 (0.80) 14.3 (1.33)

Inner coil - - - - 8.4 (0.78) 5.9 (0.55) 13.8 (1.28)

3 lbs. 3 oz.

(1.45 kg)

9 x 8

(229 x 203)

4 lbs. 6 ozs.

(1.98 kg)

10 x 7 (254 x 178)

4 lbs. 13 ozs.

(2.18 kg)

5 lbs. 8 oz.

(2.49 kg)

10 x 8

(254 x 203)

7 lbs. 7 oz.

(3.37 kg)

11-1/2 x 9

(292 x 229)

Net weight of basic unit - lbs. (kg) 300 (136) 331 (150) 320 (145) 438 (199) 473 (215)

Shipping weight of basic unit - lbs. (kg) 1 package 385 (175) 413 (187) 407 (185) 547 (248) 582 (264)

Electrical characteristics - (60hz) 208/230v - 1 phase 208/230v - 1 ph, 208/230v, 460v or 575v - 3 ph

ECH16R-5 ECH16-5

ECH16R-7 ECH16-7

ECH16R-10 ECH16-10

ECH16-15

ECH16-20

ECH16-25

Optional

Electric

Heat

Ratin

*Sound Rating Number in accordance with test conditions included in ARI Standard 270.

LRated in accordance with ARI Standard 210/240 and DOE 95_F (35_F) outdoor air temperature and 80_F (27_C) db/67_F (19_C) wb entering evaporator coil air. lAnnual Fuel Utilization Efficiency based on DOE test procedures and FTC labeling regulations.

Output - Btuh (kW) 19,000 (5.6) - - - -

lA.F.U.E. 99.0% - - - -

Output - Btuh (kW) 26,000 (7.6) 27,000 (7.9) 26,000 (7.6) 27,000 (7.9)

lA.F.U.E. 99.0%

Output - Btuh (kW) 36,000 (10.5) 37,000 (10.8) 36,000 (10.5) 37,000 (10.8)

lA.F.U.E. 99.0%

Output - Btuh (kW) 53,000 (15.5) 54,000 (15.8) 53,000 (15.5) 54,000 (15.8)

lA.F.U.E. 99.0%

Output - Btuh (kW) - - - - 70,000 (20.5) 71,000 (20.8)

lA.F.U.E. - - - - 99.0%

Output - Btuh (kW) - - - - 88,000 (25.8)

lA.F.U.E. - - - - 99.0%

Page 3

SPECIFICATIONS CHP16

Ratings

Temperature

Rati

LARI L

p Coil

Net face area

Outdoor

Fan

ECH16R-5

ECH16R-7

ECH16R-10

Electric

Rati

Model No. CHP16Ć024 CHP16Ć030 CHP16-036 CHP16-048 CHP16-060

Nominal Tonnage 2 2-1/2 3 4 5

Cooling capacity - Btuh (kW) 23,800 (7.0) 29,000 (8.5) 34,600 (10.1) 46,500 (13.6) 55,000 (16.1)

LARI

ooling

Ratings

LARI High

Te m

erature

Heating

ngs

Temperature

Heating Ratings

*Sound Rating Number (db) 80 82

Refrigerant Charge (HCFC-22)

Indoor Coil

Blower

Indoor

Coil

Outdoor

Coil

Outdoor

oil

Fan

Condensate drain size mpt - in. (mm) 3/4 (19)

No. & size of cleanable polyurethane filters - in. (mm) (1) 16 x 25 x 1 (406 x 635 x 25) ( 1) 20 x 25 x 1 (508 x 635 x 25)

Net weight of basic unit - lbs. (kg) 332 (151) 340 (154) 354 (161) 535 (243)

Shipping weight of basic unit - lbs. (kg) 1 package 417 (187) 426 (193) 436 (198) 610 (277)

Electrical characteristics - (60hz) 208/230v - 1 phase 208/230v - 1 ph, 208/230v or 460v - 3 ph

Optional

Electric

Heat

ngs

*Sound Rating Number in accordance with test conditions included in ARI Standard 270. LRated in accordance with ARI Standard 210/240;

Cooling Ratings - 95_F (35_F) outdoor air temperature and 80_F (27_C) db/67_F (19_C) wb entering indoor coil air High Temperature Heating Ratings - 47 _F (8_C) db/43_F (6_C) wb outdoor air temperature and 70_F (21_C) entering indoor coil air Low Temperature Heating Ratings - 17_F (-8_C) db/15_F (-9_C) wb outdoor air temperature and 70_F (21_C) entering indoor coil air.

Total unit watts 2615 3185 3870 4915 6225

SEER (Btuh/Watts) 10.0

EER (Btuh/Watts) 9.1 8.6 9.5 8.8

Total capacity - Btuh (kW) 23,800 (7.0) 29,400 (8.6) 35,800 (10.5) 49,500 (14.5) 57,500 (16.8)

Total unit watts 2235 2780 3430 4605 5765

C.O.P. (Coefficient of Performance) 3.12 3.10 3.06 3.14 2.94

HSPF - Region IV (Region V) 6.6 (5.9)

Total capacity - Btuh (kW) 12,800 (3.7) 17,000 (5.0) 22,800 (6.7) 28,000 (8.2) 33,600 (9.8)

Total unit watts 1855 2330 3182 3800 5045

C.O.P. (Coefficient of Performance) 2.02 2.14 2.10 2.16 1.98

Blower wheel nominal diameter x width in. (mm)

5 lbs. 10 oz.

(2.55 kg)

9 x 8

(229 x 203)

6 lbs. 0 oz.

(2.72 kg)

10 x 7 (254 x 178)

7 lbs. 0 oz..

(3.18 kg)

10 lbs. 12 oz.

(4.88 kg)

10 x 8

(254 x 203)

Motor horsepower (W) 1/3 (249) 1/2 (373) 3/4 (560)

Net face area - sq. ft. (m2) 3.2 (0.30) 4.1 (0.38) 5.8 (0.54)

Tube diameter - in. (mm) & No. of rows 3/8 (9.5) - 3

Fins per inch (m) 15 (591)

Net face area

sq. ft. (m2)

Outer coil 8.6 (0.80) 14.3 (1.33)

Inner coil 5.3 (0.49) 8.3 (0.77) 9.9 (0.92) 13.8 (1.28)

Tube diameter - in. (mm) & No. of rows 3/8 (9.5) - 1.6 3/8 (9.5) - 2

Fins per inch (m) 20 (787)

Diameter - in. (mm) & No. of blades 20 (508) - 4 24 (610) - 4

Air volume - cfm (L/s) 2350 (1110) 2200 (1040) 3600 (1700)

Motor horsepower (W) 1/6 (124) 1/4 (187)

Motor watts 220 340

ECH16R-5 ECH16-5

ECH16R-7 ECH16-7

ECH16R-10 ECH16-10

Output - Btuh (kW) 19,000 (5.6) - - - -

lA.F.U.E. 99.0% - - - -

Output - Btuh (kW) 26,000 (7.6) 27,000 (7.9) 26,000 (7.6) 27,000 (7.9)

lA.F.U.E. 99.0%

Output - Btuh (kW) 36,000 (10.5) 37,000 (10.8) 36,000 (10.5) 37,000 (10.8)

lA.F.U.E. 99.0%

Output - Btuh (kW) 53,000 (15.5) 54,000 (15.8) 53,000 (15.5) 54,000 (15.8)

ECH16-15

lA.F.U.E. 99.0%

Output - Btuh (kW) - - - - 70,000 (20.5) 71,000 (20.8)

ECH16-20

lA.F.U.E. - - - - 99.0%

Output - Btuh (kW) - - - - 88,000 (25.7)

ECH16-25

lA.F.U.E. - - - - 99.0%

10 lbs. 5 oz.

(4.68 kg)

11-1/2 x 8

(292 x 203)

Page 4

SPECIFICATIONS CHP20

Cooli

Ratings

LARI Certified

High

Temperature

Coil

Net face area

Outdoor

ECH16RĆ5

ECH16RĆ7

Electric Heat

ECH16RĆ10

Model No

ECH16Ć15

ECH16Ć20

ECH16Ć25

Model No. CHP20Ć024 CHP20Ć030 CHP20Ć036 CHP20Ć042 CHP20Ć048 CHP20Ć060

Nominal Tonnage 2 2-1/2 3 3-1/2 4 5

Cooling Capacity Ċ Btuh (kW) 24,000 (7.0) 30,200 (8.8) 33,600 (9.8) 43,000 (12.6) 46,500 (13.6) 59,000 (17.3)

LARI

Ratin

High

Temperature

Heating Ratings

LARI Certified

Low

Te m

erature

Heating Ratings

*Sound Rating Number (db) 80 82 84

Refrigerant Charge (HCFCĆ22)

Indoor Coil

ower

Indoor

Outdoor

Coil

Outdoor

Coil Fan

Condensate drain size mpt Ċ in. (mm) 3/4 (19)

No. & size of cleanable polyurethane filters - in. (mm) (1) 16 x 25 x 1 (406 x 635 x 25) (1) 20 x 25 x 1 (508 x 635 x 25)

Net weight of basic unit Ċ lbs. (kg) 305 (138) 355 (161) 355 (161) 455 (206) 535 (243) 535 (243)

Shipping weight of basic unit Ċ lbs. (kg) (1 Pkg.) 390 (177) 419 (190) 419 (190) 525 (238) 610 (277) 610 (277)

Electrical characteristics (60 hz) 208/230v-1ph

Model No.

and

Ratings

*Sound Rating Number in accordance with test conditions included in ARI Standard 270.

lAnnual Fuel Utilization Efficiency based on DOE test procedures and FTC labeling regulations. LCertified in accordance with the USE certification program, which is based on ARI standard 210/240.

Cooling RatingsĊ 95_F (35_C) outdoor air temperature and 80_F (27_C) db/67_F (19.5_C) wb entering indoor coil air. High Temperature Heating RatingsĊ 47_F (8_C) db/43_F (6_C) wb outdoor air temperature and 70_F (21_C) entering indoor coil air. Low Temperature Heating RatingsĊ 17_F (-8_C) db/15_F (-9_C) wb outdoor air temperature and 70_F (21_C) entering indoor coil air.

Total unit watts 2555 3145 3535 4105 4875 6325

SEER (Btuh/Watts) 11. 0 11 .0 5 12.05 11. 00 11.05

EER (Btuh/Watts) 9.4 9.6 9.5 10.5 9.5 9.4

Total Capacity Ċ Btuh (kW) 24,200 (7.1) 29,800 (8.7) 34,200 (10.0) 41,500 (12.2) 48,500 (14.2) 62,500 (18.3)

Total unit watts 2245 2800 3000 3880 4695 6180

C.O.P 3.16 3.12 3.34 3.20 3.04 2.98

HSPF Ċ Region IV (Region V) 6.60 (5.90) 7.35 (5.70) 7.15 (6.30) 7.55 (6.70) 6.85 (6.05)

Total Capacity Ċ Btuh (kW) 14,800 (4.3) 18,600 (5.4) 21,400 (6.3) 26,200 (7.7) 31,600 (9.3) 38,600 (11.3)

Total unit watts 2085 2595 2725 3515 4225 5425

C.O.P 2.06 2.10 2.30 2.26 2.20 2.10

Blower wheel nominal diameter x width in. (mm)

5 lbs. 0 oz.

(2.27 kg)

9 x 8

(229 x 203)

6 lbs. 8 oz.

(2.95 kg)

6 lbs. 7 oz.

(2.92 kg)

9 lbs. 12 oz.

(4.42 kg)

10 x 7 (254 x 178) 10 x 8 (254 x 203)

10 lbs. 8 oz.

(4.76 kg)

Motor output Ċ hp (W) 1/3 (249) 1/2 (373) 3/4 (560)

Net face area Ċ sq. ft. (m2) 3.2 (0.30) 4.1 (0.38) 4.1 (0.38) 5.8 (0.54) 5.8 (0.54)

Tube diameter - in. (mm) & No. of rows 3/8 (9.5) Ċ 3

Fins per inch (m) 15 (591)

Net face area Ċ sq. ft. (m2)

Outer coil 8.6 (0.80) 14.3 (1.33)

Inner coil 5.3 (0.49) 8.3 (0.77) 9.9 (1.28) 13.8 (1.28)

Tube diameter - in. (mm) & no. of rows 3/8 (9.5) - 1.6 3/8 (9.5) Ċ 2 3/8 (9.5) - 1.7 3/8 (9.5) Ċ 2

Fins per inch (m) 20 (787)

Diameter Ċ in. (mm) & No. of blades 20 (508) Ċ 4 24 (610) Ċ 4 24 (610) - 3

Air Volume Ċ cfm (L/s) 2350 (1110) 2200 (1040) 3600 (1700) 4000 (1890)

Motor output Ċ hp (W) 1/6 (124) 1/4 (187) 1/3 (249)

Motor watts 220 340 430

208/230v-1ph

208/230v or

460v - 3ph

208/230v-1ph

208/230v or 460v - 3ph

Output Ċ Btuh (kW) 19,000 (5.6) Ć Ć Ć Ć Ć Ć Ć Ć

lA.F.U.E. 99.0% Ć Ć Ć Ć Ć Ć Ć Ć

Output Ċ Btuh (kW) 26,000 (7.6) 27,000 (7.9) 26,000 (7.6) 27,000 (7.9)

lA.F.U.E. 99.0%

Output Ċ Btuh (kW) 36,000 (10.5) 37,000 (10.8) 36,000 (10.5) 37,000 (10.8)

lA.F.U.E. 99.0%

ECH16RĆ7 ECH16Ć7

ECH16RĆ10 ECH16Ć10

Output Ċ Btuh (kW) 53,000 (15.6) 54,000 (15.8) 53,000 (15.6) 54,000 (15.8)

lA.F.U.E. 99.0%

Output Ċ Btuh (kW) Ć Ć Ć Ć Ć Ć Ć Ć 70,000 (20.5) 71,000 (20.8) 71,000 (20.8)

lA.F.U.E. Ć Ć Ć Ć Ć Ć Ć Ć 99.0%

Output Ċ Btuh (kW) Ć Ć Ć Ć Ć Ć Ć Ć Ć Ć Ć Ć 88,000 (25.7) 88,000 (25.8)

lA.F.U.E. Ć Ć Ć Ć Ć Ć Ć Ć Ć Ć Ć Ć 99.0%

10 lbs. 5 oz.

(4.68 kg)

11 x 8

(279 x 203)

Page 5

Model No. Ć024 Ć030 -036 -048 -060

lated air dampers with pressure operated gravity

p, g

lizes filter furnished with unit, filter rack will accept

hood

ith cl

ly in cabinet, combination outdoor air and recircu

yg,p j

sensor, adjustable outdoor air enthalpy control. 1 in

(25 mm) fiberglass filter furnished, filter rack will

hood with alumi

filt

kit

()

damper assembly replaces blower access panel, manually

Economizer with Gravity Exhaust Dampers

(Down-Flow) Ċ Installs directly in cabinet, recircuĆ

lated air dam exhaust damper, formed, gasketed damper blades, nylon bearings, 24v damper motor has adjustable minimum position switch, electronic discharge air sensor, adjustable outdoor air enthalpy control. UtiĆ lizes filter furnished with unit, filter rack will acce up to 2 in. (51 mm) filter. Removable exhaust air

and outdoor air intake hood w aluminum mesh filter. Choice of economizer conĆ trols.

Economizer Dampers (Horizontal) Ċ Installs directĆ

lated air damper, formed, gasketed damper blades, nylon bearings, 24v damper motor has adjustable minimum position switch, electronic discharge air

(25 mm) fiberglass filter furnished, filter rack will accept up to 2 in. (51 mm) filter, outdoor air intake

mizer controls.

Electric Heat Ċ Field installed, helix wound nichrome elements, time delay for eleĆ

ment staging, individual element limit controls, wiring harness, may be twoĆstage controlled.

ECH16R - Supplemental thermal cutoff safety fuses and thermal

ECH16 - Supplemental secondary limits, heating control relay,

Electric Heat Single Point Power Source Sub-Fuse Box Ċ Use with ECH16R

electric heaters, use in conjunction with ECH16 fuse box for single point power source applications, installs internal to unit, fuses furnished, constructed of galvaĆ nized steel with prepunched mounting holes

Unit Single Point Power Source Sub Fuse Box Ċ Installs internal to unit, proĆ

vides sub-fusing to the unit, used in conjunction with ECH16 or ECH16R for single point power source applications, fuses furnished, constructed of galvanized steel with prepunched mounting holes and electrical inlet and outlet holes, hinged box cover

Enthalpy Control, Differential Ċ Used in conjunction with outdoor air enthalpy

control. Determines and selects which air has the lowest enthalpy. Return air enĆ thalpy sensor field installs in economizer damper section

Gravity Exhaust Dampers Ċ For use with EMDH16. Pressure operated assembly

field installs in the return air duct adjacent to the economizer assembly. Includes bird screen. - Net Weight

Horizontal Filter Kit (Canada Only) Ċ For horizontal applications, painted steel

cabinet with filter access, disposable, pleated fiber filter furnished, number and size of filter - Net Weight

Low Ambient Control Kit Ċ Units operate down to 30°F (-1°C) outdoor air temperĆ

ature in cooling mode without any additional controls. A Low Ambient Kit can be field installed, enabling unit to operate properly down to 0°F (Ć17.7°C).

Roof Curb Power Entry Kit Ċ Allows power entry through

roof mounting frame, knockouts provided in roof frame, contains 40 in. (1016 mm) armored conduit and installation hardware, two kits are required, one for low voltage and one for high voltage. See Dimension Drawing

Roof Mounting Frame Ċ Nailer strip furnished, mates to unit, U.S. National RoofĆ

ing Contractors Approved, shipped knocked down. RMF16-41 may be used on all sizes, with a slight unit overhang on CHP16-048 and CHP16-060 units - Net Weight NOTE (US Only) Ċ Sound Reduction Plate must be ordered separately for field installation.

Outdoor Air Damper Section Ċ For downĆflow applications,

dam adjustable, 0 to 25% (fixed) outdoor air, outdoor air hood with cleanable filter included, number and size of filter - Net Weight

Outdoor Air Damper Section Ċ For horizontal applications, installs in return air

duct adjacent to unit, manually adjustable (fixed) outdoor air - Net Weight

Outdoor Thermostat Kit Ċ Used to lock out some of the

electric heating elements on indoor units where two stage control is applicable. Outdoor thermostat maintains the heating load on the low power input as long as possible before allowing the full power load to come on line

Indoor filter is not furnished with economizer. REMD16 utilizes existing filter furnished with 16 unit.

ers with pressure operated gravit

eanable

num mesh

relay sequencer.

fuse block, thermal relay sequencer (20-25 kW 208/230v) and galvanized steel control box.

er assembly replaces blower access panel, manuall

er. Choice of econoĆ

OPTIONAL ACCESSORIES CHA/CHP16

3 position REMD16-41 - 48 lbs. (22 kg) REMD16-65 - 66 lbs. (30 kg)

US Only

Canada Only

Only

Canada

Only

Fully Modulating REMD16M-41 - 48 lbs. (22 kg) REMD16M-65 - 66 lbs. (30 kg)

Indoor Filter (1) 16 x 25 x 1 (406 x 635 x 25) (1) 20 x 25 x 1 (508 x 635 x 25)

Outdoor Filter (1) 14 x 25 x 1 (356 x 635 x 25) (1) 18 x 25 x 1 (457 x 635 x 25)

Fully Modulating REMD16M-41S - 85 lbs. (39 kg) REMD16M-65S- 105 lbs. (48 kg)

Indoor Filter (1) 16 x 25 x 1 (406 x 635 x 25) (1) 20 x 25 x 1 (508 x 635 x 25)

Outdoor Filter (1) 19-3/8 x 15-3/4 x 1

3 position EMDH16-41 110 lbs. (50 kg) EMDH16-65 - 130 lbs. (59 kg) Fully Modulating EMDH16M-41 - 110 lbs. (50 kg) EMDH16M-65 - 130 lbs. (59 kg)

Indoor Filter (1) 20 x 24 x 1 (508 x 610 x 25)

Outdoor Filter (1) 8 x 24 x 1 (203 x 610 x 25) (1) 8 x 28 x 1 (203 x 711 x 25) Fully Modulating EMDH16M-41S - 70 lbs. (32 kg) EMDH16M-65S - 86 lbs. (39 kg) Indoor Filter (1) 20 x 20 x 1 (508 x 508 x 25) (1) 20 x 25 x 1 (508 x 635 x 25)

Outdoor Filter

1/2 in. (13 mm) 18H70

1 in. (26 mm) 18H71

1-1/2 in. (39 mm) 18H72

US Only

Canada Only

Thermostat Kit LB-29740BA (56A87)

Mounting Box M-1595 (31461) / BM-10260 (33A09) Canada Only

(1) 16-1/2 x 21-3/4 x 1

HF16-46S - 18 lbs. (8 kg)

RMF16-41 - 75 lbs. (35 kg) 97G59

Plate (order separately) (73H80)

OAD16-41 - 12 lbs. (5 kg)

OAD16-41S - 10 lbs. (5 kg)

Page 6

(419 x 552 x 25)

See Electric Heat Data Tables

GEDH16-65 - 4 lbs. (2 kg)

(1) 20 x 20 x 2 in.

(508 x 508 x 51 mm)

CHP16 LB-57113BM (27J00)

CHA16 LB-57113BC (24H77)

(1) 5 x 17 x 1 in.

(127 x 432 x 25 mm)

(1) 14 x 6 x 1 in.

(356 x 152 x 25 mm)

OAD3-46/65 - 8 lbs. (4 kg)

(1) 19-7/8 x 22-3/4 x 1

(505 x 578 x 25)

(1) 16 x 25 x 1 (406 x 635 x 25)

(1) 14 x 25 x1 (356 x 635 x 1)

(1) 22-1/2 x 25-1/4 x 1

(571 x 641 x 25)

54G44

HF16-65S - 21 lbs. (10 kg)

(1) 20 x 25 x 2 in.

(508 x 635 x 51 mm)

RMF16-41 - 75 lbs. (35 kg)

OAD16-65 - 12 lbs. (5 kg)

OAD16-65S - 16 lbs. (7 kg)

97G59

Plate (order separately)

(73H80)

RMF16-65 - 86 lbs.

(39 kg) 97G60

Plate (order separately)

(73H82)

(1) 8 x 17 x 1 in.

(203 x 432 x 25 mm)

(1) 18 x 6 x 1 in.

(457 x 152 x 25 mm)

OPTIONAL ACCESSORIES CHA/CHP16 Cont.

nished, interior transition (even air flow), internally

transition (even air flow), internally sealed (prevents recirĆ

kit

()

Model No. Ć024 Ć030 -036 -048 -060

Coil Guards Ċ PVC coated steel wire guards to protect outdoor coil.

Compressor Monitor (Canada Only) Ċ NonĆadjustable switch (low ambiĆ

ent cutĆout) prevents compressor operation when outdoor temperature is below 35°F (2°C).

Diffusers Ċ Aluminum grilles, large center grille, inĆ

sulated diffuser box with flanges, hanging rings furĆ nished, interior transition (even air flow), internally sealed (prevents recirculation), adapts to TĆbar ceilĆ ing grids or plaster ceilings - Net Weight

Timed Off Control Ċ Prevents compressor shortĆcycling and allows time

for suction and discharge pressure to equalize, permitting the compressor to start in an unloaded condition. Automatic reset control provides a time delay between compressor shutoff and startĆup.

Transitions (Supply and Return) Ċ Used with diffusers, installs in roof

mounting frame, galvanized steel construction, flanges furnished for duct connection, fully insulated - Net Weight

Unit Stand-Off Mounting Kit Ċ Elevates horizontal application units

above mounting surface. Includes six high impact polystyrene standĆoff mounts. See dimension drawings.

StepĆDown -

double deflecĆ tion louvers

Flush - fixed

blade louvers

OPTIONAL ACCESSORIES CHP20

Model No.

Coil Guards Ċ PVC coated steel wire guards to protect outdoor coil.

Diffusers Ċ Aluminum grilles, large center grille, insulated

diffuser box with flanges, hanging rings furnished, interior transition (even air flow), internally sealed (prevents recirĆ culation), adapts to TĆbar ceiling grids or plaster ceilings Net Weight

Economizer with Gravity Exhaust Dampers (Down-Flow) Ċ Installs directly in

cabinet, recirculated air dampers with pressure operated gravity exhaust dampĆ er, formed, gasketed damper blades, nylon bearings, 3 position or fully moduĆ lating 24v damper motor has adjustable minimum position switch, electronic discharge air sensor, adjustable outdoor air enthalpy control. Utilizes filter furĆ nished with unit, filter rack will accept up to 2 in. (51 mm) filter. Removable exhaust air hood and outdoor air intake hood with aluminum mesh filter. Choice of economizer controls. Model No. - Net Weight - No. & size of filter, in. (mm)

Economizer Dampers (Horizontal) Ċ Installs directly in cabinet, combination outĆ

door air and recirculated air damper, formed, gasketed damper blades, nylon bearings, 3 position or fully modulating 24v damper motor has adjustable miniĆ mum position switch, electronic discharge air sensor, adjustable outdoor air enĆ thalpy control. 1 in (25 mm) fiberglass filter furnished, filter rack will accept up to 2 in. (51 mm) filter, outdoor air intake hood with aluminum mesh filter. Choice of economizer controls. Model No. - Net Weight - No. & size of filter, in. (mm)

Electric Heat Ċ Field installed, helix wound nichrome elements, time delay for eleĆ

ment staging, individual element limit controls, wiring harness, may be twoĆstage controlled.

ECH16R - Supplemental thermal cutoff safety fuses and thermal

ECH16 - Supplemental secondary limits, heating control relay,

Electric Heat Single Point Power Source Sub-Fuse Box Ċ Use with ECH16R elecĆ

tric heaters, use in conjunction with ECH16 fuse box for single point power source applications, installs internal to unit, fuses furnished, constructed of galvanized steel with prepunched mounting holes

Unit Single Point Power Source Sub Fuse Box Ċ Installs internal to unit, provides

sub-fusing to the unit, used in conjunction with ECH16 or ECH16R for single point power source applications, fuses furnished, constructed of galvanized steel with prepunched mounting holes and electrical inlet and outlet holes, hinged box cover

Enthalpy Control, Differential Ċ Used in conjunction with outdoor air enthalpy

control. Determines and selects which air has the lowest enthalpy. Return air enĆ thalpy sensor field installs in economizer damper section

Gravity Exhaust Dampers Ċ For use with EMDH16. Pressure operated assembly

field installs in the return air duct adjacent to the economizer assembly. Includes bird screen. - Net Weight

Low Ambient Control Kit - Units operate down to 30°F (-1°C) outdoor air temperaĆ

ture in cooling mode without any additional controls. A Low Ambient Kit can be field installed, enabling unit to operate properly down to 0°F (Ć17.7°C).

Roof Curb Power Entry Kit Ċ Allows power entry through

roof mounting frame, knockouts provided in roof frame, contains 40 in. (1016 mm) armored conduit and installaĆ tion hardware, two kits are required, one for low voltage and one for high voltage. See Dimension Drawing

relay sequencer.

fuse block, thermal relay sequencer (20-25 kW 208/230v) and galvanized steel control box.

StepĆDown -

double deflecĆ tion louvers

Flush - fixed

blade louvers

1/2 in. (13 mm) 18H70

1 in. (26 mm) 18H71

1-1/2 in. (39 mm) 18H72

LB-82199CF (47J23)

2 guards per order

T6-1469 (45F08)

RTD9-65 - 67 lbs. (30 kg)

FD9-65 Ć 37 lbs.(17 kg)

LB-50709BK (47J27)

SRT16 - 20 lbs. (9 kg)

38H18

CHP20-024 CHP20-030 CHP20-036

LB-82199CF (47J23)

2 guards per order

RTD9-65 - 67 lbs. (30 kg)

FD9-65 Ć 37 lbs.(17 kg)

REMD16-41 - 48 lbs. (22 kg)

REMD16M-41 - 48 lbs. (22 kg)

EMDH16-41 - 110 lbs. (50 kg)

EMDH16M-41 - 110 lbs. (50 kg)

3 Position:

Modulating:

Indoor: (1) 16 x 25 x 1

(406 x 635 x 25)

Outdoor : (1) 14 x 25 x 1

(356 x 635 x 25)

3 Position:

Modulating:

Indoor : (1) 20 x 24 x 1

(508 x 610 x 25)

Outdoor : (1) 8 x 24 x 1

(203 x 610 x 25)

See Electric Heat Data Tables

GEDH16-65 - 4 lbs. (2 kg)

LB-57113BM (27J00)

LB-82199CG (47J24)

3 guards per order

CHP20-042 CHP20-048

LB-82199CG (47J24)

3 guards per order

REMD16-65 - 66 lbs. (30 kg)

REMD16M-65 - 66 lbs. (30 kg)

EMDH16-65 - 130 lbs. (59 kg)

EMDH16M-65 - 130 lbs. (59 kg)

(1) 14 x 25 x1 (356 x 635 x 1)

54G44

3 Position:

Modulating:

Indoor: (1) 20 x 25 x 1

(508 x 635 x 25)

Outdoor : (1) 18 x 25 x 1

(457 x 635 x 25)

3 Position:

Modulating:

Indoor : (1) 16 x 25 x 1

(406 x 635 x 25) &

Outdoor : (1) 8 x 28 x 1

(203 x 711 x 25)

CHP20-060

Page 7

OPTIONAL ACCESSORIES CHP20 Cont.

Condenser Coil

Evaporator

Condenser Coil

Evaporator

Model No. CHP20-024, -030, -036 CHP20-042, -048 CHP20-060

Roof Mounting Frame Ċ Nailer strip furnished, mates to unit, U.S. National

Roofing Contractors Approved, shipped knocked down. RMF16-41 may be used on all sizes, with a slight unit overhang on CHP20-048 and CHP20-060 units - Net Weight. NOTE (US Only) Ċ Sound Reduction Plate must be ordered separately for field installation.

Outdoor Air Damper Section Ċ For downĆflow applications, damper assembly reĆ

places blower access panel, manually adjustable, 0 to 25% (fixed) outdoor air, outĆ door air hood with cleanable filter included, number and size of filter - Net Weight

Outdoor Air Damper Section Ċ For horizontal applications, installs in return

air duct adjacent to unit, manually adjustable (fixed) outdoor air - Net Weight

Outdoor Thermostat Kit Ċ Used to lock out some of the

electric heating elements on indoor units where two stage control is applicable. Outdoor thermostat maintains the heating load on the low power input as long as posĆ sible before allowing the full power load to come on line

Timed Off Control Ċ Prevents compressor shortĆcycling and allows time for

suction and discharge pressure to equalize, permitting the compressor to start in an unloaded condition. Automatic reset control provides a time delay beĆ tween compressor shutoff and startĆup.

Transitions (Supply and Return) Ċ Used with diffusers, installs in roof mountĆ

ing frame, galvanized steel construction, flanges furnished for duct connection, fully insulated - Net Weight

Unit Stand-Off Mounting Kit Ċ Elevates horizontal application units above

mounting surface. Includes six high impact polystyrene standĆoff mounts. See dimension drawings.

Indoor filter is not furnished with economizer. REMD16 utilizes existing filter furnished with CHP20 unit.

Thermostat Kit LB-29740BA (56A87)

Mounting Box M-1595 (31461)

RMF16-41 - 75 lbs. (35 kg)

Plate (order separately) (73H80)

OAD16-41 - 12 lbs. (5 kg)

(1) 5 x 17 x 1 in.

(127 x 432 x 25 mm)

RMF16-41 - 75 lbs. (35 kg)

Plate (order separately) (73H80)

RMF16-65 - 86 lbs. (39 kg)

Plate (order separately) (73H82)

OAD16-65 - 12 lbs. (5 kg)

(1) 8 x 17 x 1 in.

(203 x 432 x 25 mm)

OAD3-46/65 - 8 lbs. (4 kg)

LB-50709BK (47J27)

SRT16 - 20 lbs. (9 kg)

38H18

ELECTRICAL DATA CHA16

Single Phase

ModelĂNo. CHA16Ć024 CHA16Ć030 CHA16Ć036 CHA16Ć048 CHA16Ć060

LineĂvoltageĂdataĂ-Ă60Ăhz 208/230v - 1 phase

Recommended maximum fuse size (amps) 25 30 40 50 60

{Minimum Circuit Ampacity 16 21 27 34 41

ompressor

Condenser Coil

FanĂMotor

Evaporator

Blower Motor

{ReferĂtoĂNational or CanadianĂElectricalĂCodeĂmanualĂtoĂdetermineĂwire,ĂfuseĂandĂdisconnectĂsizeĂrequirements. Where current does not exceed 100 amps, HACR type circuit breaker may be used in place of fuse (U.S. Only).

NOTEĂ-ĂExtremesĂofĂoperatingĂrangeĂareĂplusĂandĂminusĂ10%ĂofĂlineĂvoltage.

Rated load amps 10.1 13.0 17.7 21.8 26.1

Locked rotor amps 60 69.4 100.0 131.0 170

FullĂloadĂamps 1.1 2.3

LockedĂrotorĂamps 2.2 4.4

FullĂloadĂamps 2.2 3 3.9 5.2

LockedĂrotorĂamps 4.2 6.2 8.3 10

ELECTRICAL DATA CHA16

Three Phase

ModelĂNo. CHA16Ć036 CHA16Ć048 CHA16Ć060

LineĂvoltageĂdataĂ-Ă60Ăhz - 3 phase 208/230v 460v 575v 208/230v 460v 575v 208/230v 460v 575v

Recommended maximum fuse size (amps) 30 15 35 15 15 40 20 15

{Minimum Circuit Ampacity 20 11 9 23 11 10 28 14 12

ompressor

Condenser Coil

FanĂMotor

Evaporator

Blower Motor

NOTEĂ-ĂExtremesĂofĂoperatingĂrangeĂareĂplusĂandĂminusĂ10%ĂofĂlineĂvoltage.

Rated load amps 12.2 6.2 4.6 12.8 6.4 5.1 16.2 8.0 6.5

Locked rotor amps 77 39 31 91 46 37 124 60 47.7

FullĂloadĂamps 1.1 .73 .73 2.3 1.1 1.1 2.3 1.1 1.1

LockedĂrotorĂamps 2.2 1.3 1.3 4.4 2 2 4.4 2 2

FullĂloadĂamps 3.0 1.8 1.8 3.9 1.8 1.8 5.2 2.7 2.7

LockedĂrotorĂamps 6.2 4.4 4.4 8.3 4.4 4.4 10 3.8 3.8

Page 8

ELECTRICAL DATA CHP16

Outdoor Coil

Indoor Coil

Outdoor Coil

Indoor Coil

ModelĂNo. Ć024 Ć030 Ć036 Ć048 Ć060

LineĂvoltageĂdataĂ-Ă60Ăhz 208/230v - 1 phase

Recommended max. fuse size (amps) 25 30 40 30 15 50 35 15 60 40 20

{Minimum Circuit Ampacity 16 21 27 20 11 34 23 11 39 27 13

ompressor

Outdoor Coil

FanĂMotor

Indoor Coil

Blower Motor

NOTEĂ-ĂExtremesĂofĂoperatingĂrangeĂareĂplusĂandĂminusĂ10%ĂofĂlineĂvoltage.

Rated load amps 10.1 13.0 17.7 12.2 6.2 21.8 12.8 6.4 25.0 15.5 7.5

Locked rotor amps 60.0 69.4 100.0 77.0 39.0 131.0 91.0 46.0 170.0 124.0 60.0

FullĂloadĂamps 1.1 0.73 2.3 1.1 2.3 1.1

LockedĂrotorĂamps 2.2 1.3 4.4 2.0 4.4 2.0

FullĂloadĂamps 2.1 3.0 1.8 3.9 1.8 4.6 2.4

LockedĂrotorĂamps 4.2 6.2 4.4 8.3 4.4 10.0 3.8

208/230v

1 phase

208/230v

3 phase

460v -

3 phase

208/230v

1 phase

208/230v

3 phase

460v -

3 phase

208/230v

1 phase

208/230v

3 phase

ELECTRICAL CHP20

Single Phase

CHP20 ModelĂNo. CHP20Ć024 CHP20Ć030 CHP20Ć036 CHP20Ć042 CHP20Ć048 CHP20Ć060

LineĂvoltageĂdata - 60 hz 208/230v

"RecommendedĂmaximumĂfuseĂsizeĂ(amps) 30 35 40 50 60 70

{MinimumĂCircuitĂAmpacity 19 22 25 32 36 44

ompressors

Outdoor Coil

FanĂMotor

Indoor Coil

ower Motor (1 phase)

{ReferĂtoĂNationalĂor Canadian ElectricalĂCodeĂmanualĂtoĂdetermineĂwire,ĂfuseĂandĂdisconnectĂsizeĂrequirements. "WhereĂcurrentĂdoesĂnotĂexceedĂ100Ăamps,ĂHACRĂtypeĂcircuitĂbreakerĂmayĂbeĂusedĂinĂplaceĂofĂfuse.

NOTEĂĊĂExtremesĂofĂoperatingĂrangeĂareĂplusĂandĂminusĂ10%ĂofĂlineĂvoltage.

RatedĂloadĂamps 12.2 13.8 16.1 20.1 23.7 28.8

LockedĂrotorĂamps 61.0 73.0 88.0 104.0 129.0 169.0

FullĂloadĂamps 1.1 2.3 2.4

LockedĂrotorĂamps 2.2 4.4

FullĂloadĂampsĂ 2.1 3.0 3.9 4.6

LockedĂrotorĂampsĂ 4.2 6.2 8.3 10.0

460v -

ELECTRICAL CHP20

Three Phase

CHP20 ModelĂNo. CHP20Ć036 CHP20Ć048 CHP20Ć060

LineĂvoltageĂdata - 60 hz - 3 phase 208/230v 460v 208/230v 460v 208/230v 460v

"RecommendedĂmaximumĂfuseĂsizeĂ(amps) 25 15 35 15 45 20

{MinimumĂCircuitĂAmpacity 17 10 24 13 29 15

ompressors

Outdoor Coil

FanĂMotor

Indoor Coil

Blower Motor (1 phase)

NOTEĂĊĂExtremesĂofĂoperatingĂrangeĂareĂplusĂandĂminusĂ10%ĂofĂlineĂvoltage.

RatedĂloadĂamps 10.3 5.2 13.5 7.4 17.3 9

LockedĂrotorĂamps 77 39 120 49.5 137 62

FullĂloadĂamps 1.1 0.73 2.3 1.1 2.4 1.3

LockedĂrotorĂamps 2.2 1.3 4.4 2 4.4 2.0

FullĂloadĂampsĂ 3 1.8 3.9 1.8 4.6 2.4

LockedĂrotorĂampsĂ 6.2 4.4 8.3 4.4 10 3.8

Page 9

BLOWER DATA CHA16

CHA16-024 BLOWER PERFORMANCE @ 230 VOLTS (With Down-Flow Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s cfm L/s

0 0 1370 645 950 450 875 415 660 310

.05 12 1365 645 955 450 880 415 670 315

.10 25 1350 635 960 455 885 420 675 320

.15 37 1340 630 960 455 885 420 680 320

.20 50 1320 625 955 450 880 415 680 320

.25 62 1300 615 950 450 875 415 680 320

.30 75 1280 605 940 445 870 410 675 320

.40 100 1220 575 920 435 850 400 660 310

.50 125 1150 545 880 415 820 385 630 295

.60 150 1070 505 835 395 775 365 585 275

.70 175 975 460 780 370 725 340 535 250

.75 185 925 435 745 350 700 330 500 235

NOTE Ċ For 208v unit operation, derate air volume by 7%. All air data is meaĆ sured external to the unit with dry coil and without air filter.

Air Volume at Various Blower Speeds

High

MediumĆ

High

MediumĆ

Low

CHA16-024 BLOWER PERFORMANCE @ 230 VOLTS (With Horizontal Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s cfm L/s

Air Volume at Various Blower Speeds

High

MediumĆ

High

MediumĆ

Low

0 0 1405 665 905 425 820 385 620 295

.05 12 1400 660 935 440 845 400 640 300

.10 25 1385 655 955 450 865 410 655 310

.15 37 1370 645 975 460 880 415 665 315

.20 50 1355 640 985 465 890 420 670 315

.25 62 1335 630 990 465 895 420 670 315

.30 75 1310 620 985 465 890 420 670 315

.40 100 1260 595 965 455 870 410 650 305

.50 125 1195 565 915 430 830 390 615 290

.60 150 1120 530 840 395 865 410 560 265

.70 175 1035 490 740 350 675 320 490 230

.75 185 990 465 685 325 620 295 445 210

NOTE Ċ For 208v unit operation, derate air volume by 7%. All air data is measured external to the unit with dry coil and without air filter.

CHA16-030 BLOWER PERFORMANCE @ 230 VOLTS (With Down-Flow Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s cfm L/s

Air Volume at Various Blower Speeds

High

MediumĆ

High

MediumĆ

Low

0 0 1355 640 1255 590 1105 520 900 425

.05 12 1345 635 1250 590 1100 520 910 430

.10 25 1330 630 1245 590 1090 515 915 430

.15 37 1310 620 1235 585 1080 510 915 430

.20 50 1290 610 1220 575 1070 505 910 430

.25 62 1270 600 1205 570 1055 500 900 425

.30 75 1245 590 1180 555 1035 490 890 420

.40 100 1190 560 1130 535 990 465 855 405

.50 125 1125 530 1060 500 935 440 805 380

.60 150 1050 495 980 560 870 410 735 345

.70 175 960 455 885 420 790 375 655 310

.75 185 915 430 835 395 745 350 605 285

NOTE Ċ For 208v unit operation, derate air volume by 7%. All air data is measured external to the unit with dry coil and without air filter.

CHA16-030 BLOWER PERFORMANCE @ 230 VOLTS (With Horizontal Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s cfm L/s

Air Volume at Various Blower Speeds

High

MediumĆ

High

MediumĆ

Low

0 0 1445 680 1330 630 1105 520 900 425

.05 12 1435 680 1295 610 1105 520 910 430

.10 25 1420 670 1285 605 1105 520 915 430

.15 37 1400 660 1275 600 1100 520 920 435

.20 50 1380 650 1265 595 1095 515 920 435

.25 62 1360 640 1250 590 1085 510 915 430

.30 75 1335 630 1230 580 1070 505 905 425

.40 100 1280 605 1185 560 1035 490 880 415

.50 125 1220 575 1135 535 995 470 840 395

.60 150 1150 545 1070 505 935 440 790 375

.70 175 1070 505 995 470 870 410 720 340

.75 185 1025 485 955 450 830 390 680 320

NOTE Ċ For 208v unit operation, derate air volume by 7%. All air data is measured external to the unit with dry coil and without air filter.

Page 10

BLOWER DATA CHA16 Cont

External Static

CHA16-036 BLOWER PERFORMANCE @ 230 VOLTS (With Down-Flow Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s cfm L/s

0 0 1415 670 1350 635 1135 530 915 430

.05 12 1395 660 1335 630 1125 530 905 425

.10 25 1375 650 1315 620 111 5 525 895 420

.15 37 1360 640 1290 610 111 0 525 890 420

.20 50 1355 640 1275 600 1105 520 885 420

.25 62 1325 625 1255 590 1095 515 875 415

.30 75 1310 620 1235 585 1085 510 865 410

.40 100 1265 595 1195 565 1060 500 845 400

.50 125 1220 575 1155 545 1020 480 825 390

.60 150 1170 550 1105 520 975 460 785 370

.70 175 1115 525 1045 495 925 435 725 340

.75 185 1085 510 1010 475 895 420 685 325

NOTE Ċ For 208v unit operation, derate air volume by 7%. All air data is meaĆ sured external to the unit with dry coil and without air filter.

CHA16-036 BLOWER PERFORMANCE @ 230 VOLTS (With Horizontal Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s cfm L/s

0 0 1490 705 1460 690 1145 540 920 435

.05 12 1470 695 1440 680 1135 535 910 430

.10 25 1450 685 1420 670 1125 530 900 425

.15 37 1435 675 1395 660 1120 530 895 420

.20 50 1430 675 1375 650 1115 525 890 420

.25 62 1400 660 1355 640 1105 520 880 415

.30 75 1380 650 1335 630 1095 515 870 410

.40 100 1335 630 1285 605 1070 505 850 400

.50 125 1285 605 1235 585 1030 485 830 390

.60 150 1235 585 1195 565 985 465 790 375

.70 175 1185 560 1140 540 935 440 730 345

.75 185 1160 545 1110 525 905 425 690 325

NOTE Ċ All air data is measured external to the unit with dry coil and without air filter.

CHA16-036 BLOWER PERFORMANCE @ 460/575 VOLTS (With Down-Flow Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s

0 0 1625 765 1465 690 1100 520

.05 12 1600 755 1445 680 1100 520

.10 25 1570 740 1420 670 1100 520

.15 37 1555 735 1395 660 1095 515

.20 50 1525 720 1385 655 1090 515

.25 62 1485 700 1365 645 1075 505

.30 75 1465 690 1340 630 1070 505

.40 100 1400 660 1285 605 1035 490

.50 125 1335 630 1235 585 1005 475

.60 150 1260 595 1165 550 955 450

.70 175 1170 550 1085 510 875 415

.75 185 1100 520 1045 495 815 385

NOTE Ċ All air data is measured external to the unit with dry coil and without air filter.

Air Volume at Various Blower Speeds

High

High Medium Low

MediumĆ

High

Air Volume at Various Blower Speeds

MediumĆ

High

Air Volume at Various Blower Speeds

MediumĆ

Low

MediumĆ

Low

CHA16-036 BLOWER PERFORMANCE @ 460/575 VOLTS (With Horizontal Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s

Air Volume at Various Blower Speeds

High Medium Low

0 0 1710 805 1590 750 1105 520

.05 12 1685 795 1565 740 1105 520

.10 25 1655 780 1535 725 1105 520

.15 37 1630 770 1510 715 1100 520

.20 50 1610 760 1490 705 1095 515

.25 62 1570 740 1470 695 1085 510

.30 75 1540 725 1445 680 1075 505

.40 100 1475 695 1385 655 1040 490

.50 125 1405 665 1330 630 1010 475

.60 150 1335 630 1260 595 960 455

.70 175 1240 585 1185 560 885 420

.75 185 1180 555 1150 545 825 390

NOTE Ċ All air data is measured external to the unit with dry coil and without air filter.

CHA16-048 BLOWER PERFORMANCE @ 230 VOLTS (With Down-Flow Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s cfm L/s

Air Volume at Various Blower Speeds

High

MediumĆ

High

MediumĆ

Low

0 0 2065 975 1715 810 1515 715 1305 615

.05 12 2055 970 1705 805 1505 710 1300 615

.10 25 2040 965 1690 800 1495 705 1300 615

.15 37 2020 955 1680 795 1485 700 1295 610

.20 50 2000 945 1665 785 1475 695 1290 610

.25 62 1975 930 1650 780 1470 695 1285 605

.30 75 1950 920 1635 770 1450 685 1280 605

.40 100 1885 890 1600 755 1425 670 1260 595

.50 125 1810 855 1565 740 1395 660 1225 580

.60 150 1730 815 1525 720 1360 640 1175 555

.70 175 1645 775 1600 755 1320 625 111 0 525

.75 185 1600 755 1455 685 1295 610 1070 505

NOTE Ċ For 208v unit operation, derate air volume by 7%. All air data is meaĆ sured external to the unit with dry coil and without air filter.

CHA16-048 BLOWER PERFORMANCE @ 230 VOLTS (With Horizontal Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s cfm L/s

Air Volume at Various Blower Speeds

High

MediumĆ

High

MediumĆ

Low

0 0 2140 1010 1785 840 1535 725 1305 615

.05 12 2115 1000 1770 835 1530 720 1300 615

.10 25 2090 985 1755 830 1520 715 1295 610

.15 37 2070 975 1745 825 1510 715 1290 610

.20 50 2045 965 1730 815 1500 710 1285 605

.25 62 2020 955 1715 810 1490 705 1280 605

.30 75 1995 940 1700 800 1480 700 1275 600

.40 100 1935 915 1665 785 1460 690 1260 595

.50 125 1875 885 1630 770 1430 675 1235 585

.60 150 1800 850 1585 750 1400 660 1205 570

.70 175 1710 805 1530 720 1370 645 1170 550

.75 185 1655 780 1495 705 1355 640 1150 545

NOTE Ċ For 208v unit operation, derate air volume by 7%. All air data is meaĆ sured external to the unit with dry coil and without air filter.

Page 11

BLOWER DATA CHA16 Cont.

External Static

CHA16-048 BLOWER PERFORMANCE @ 460/575 VOLTS (With Down-Flow Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s

0 0 2140 1010 1745 825 1175 555

.05 12 2120 1000 1730 815 1175 555

.10 25 2080 980 1720 810 1170 550

.15 37 2045 965 1710 805 1170 550

.20 50 2005 945 1695 800 1165 550

.25 62 1975 930 1680 795 1160 545

.30 75 1940 915 1665 785 1150 545

.40 100 1870 885 1625 765 1135 535

.50 125 1790 845 1580 745 111 0 525

.60 150 1705 805 1515 715 1075 505

.70 175 1605 760 1430 675 1030 485

.75 185 1555 740 1375 650 1000 470

NOTE Ċ All air data is measured external to the unit with dry coil and without air filter.

Air Volume at Various Blower Speeds

High Medium Low

CHA16-048 BLOWER PERFORMANCE @ 460/575 VOLTS (With Horizontal Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s

Air Volume at Various Blower Speeds

High Medium Low

0 0 2160 1020 1815 855 1210 570

.05 12 2125 1005 1800 850 1210 570

.10 25 2095 990 1790 845 1200 565

.15 37 2060 970 1780 840 1200 565

.20 50 2025 955 1760 830 1195 565

.25 62 1990 940 1745 825 1190 560

.30 75 1955 925 1730 815 1185 560

.40 100 1885 890 1690 800 1170 550

.50 125 1805 850 1640 775 1140 540

.60 150 1715 810 1575 745 1105 520

.70 175 1615 760 1495 705 1065 505

.75 185 1560 735 1445 680 1040 490

NOTE Ċ All air data is measured external to the unit with dry coil and without air filter.

CHA16-060 BLOWER PERFORMANCE @ 230 VOLTS (With DownĆFlow Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s

Air Volume at Various Blower Speeds

High

MediumĆ

High

Medium

MediumĆ

Low

0 0 2725 1285 2490 1175 2235 1055 1940 915 1620 765

.05 12 2695 1270 2435 1150 2210 1045 1930 910 1625 765

.10 25 2665 1260 2430 1145 2185 1030 1925 910 1625 765

.15 37 2635 1245 2415 1140 2160 1020 1910 900 1610 760

.20 50 2600 1225 2395 1130 2140 1010 1895 895 1590 750

.25 62 2555 1205 2365 1115 2130 1005 1880 885 1580 745

.30 75 2510 1185 2335 1100 2115 1000 1865 880 1565 740

.40 100 2445 1155 2275 1075 2060 970 1830 865 1540 725

.50 125 2385 1125 2230 1050 2005 945 1765 835 1505 710

.60 150 2285 1080 2140 1010 1940 915 1725 815 1455 685

.70 175 2210 1045 2075 980 1880 885 1660 785 1405 665

.75 185 2175 1025 2030 960 1845 870 1615 760 1370 645

NOTE Ċ For 208v unit operation, derate air volume by 7%. All air data is meaĆ sured external to the unit with dry coil and without air filter.

CHA16-060 BLOWER PERFORMANCE @ 460/575 VOLTS (With Down-Flow Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s

Air Volume at Various Blower Speeds

High Medium Low

0 0 2725 1285 2405 1135 1905 900

.05 12 2680 1265 2365 1115 1890 890

.10 25 2635 1245 2325 1095 1870 880

.15 37 2590 1220 2290 1080 1855 875

.20 50 2550 1205 2255 1065 1840 870

.25 62 2515 1185 2220 1050 1820 860

.30 75 2485 1175 2190 1035 1795 845

.40 100 2395 1130 2120 1000 1745 825

.50 125 2325 1095 2050 965 1680 795

.60 150 2235 1055 1970 930 1570 740

.70 175 2150 1015 1900 895 1560 735

.75 185 2100 990 1860 880 1515 715

NOTE Ċ All air data is measured external to the unit with dry coil and without air filter.

CHA16-060 BLOWER PERFORMANCE @ 230 VOLTS (With Horizontal Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s

Air Volume at Various Blower Speeds

High

MediumĆ

High

Medium

MediumĆ

Low

0 0 2850 1345 2530 1195 2255 1065 1970 930 1640 775

.05 12 2820 1330 2475 1170 2230 1050 1965 925 1645 775

.10 25 2790 1315 2475 1170 2205 1040 1955 925 1645 775

.15 37 2760 1300 2455 1160 2180 1030 1940 915 1630 770

.20 50 2725 1285 2435 1150 2160 1020 1925 910 1610 760

.25 62 2680 1265 2405 1135 2150 1015 1910 900 1600 755

.30 75 2630 1240 2375 1120 2135 1010 1895 895 1585 750

.40 100 2570 1215 2315 1090 2080 980 1860 880 1560 735

.50 125 2510 1185 2270 1070 2025 955 1795 845 1525 720

.60 150 2410 1135 2180 1030 1960 925 1755 830 1475 695

.70 175 2335 1100 2115 1000 1900 895 1690 800 1425 670

.75 185 2300 1085 2070 975 1865 880 1650 780 1390 655

NOTE Ċ For 208v unit operation, derate air volume by 7%. All air data is meaĆ sured external to the unit with dry coil and without air filter.

CHA16-060 BLOWER PERFORMANCE @ 460/575 VOLTS (With Horizontal Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s

Air Volume at Various Blower Speeds

High Medium Low

0 0 2850 1345 2430 1145 1940 915

.05 12 2805 1325 2385 1125 1920 905

.10 25 2760 1300 2345 1105 1905 900

.15 37 2715 1280 2310 1090 1885 890

.20 50 2670 1260 2275 1075 1870 880

.25 62 2640 1245 2240 1055 1850 875

.30 75 2605 1230 2210 1045 1825 860

.40 100 2515 1185 2140 1010 1775 840

.50 125 2445 1155 2120 1000 1710 805

.60 150 2355 1110 1990 940 1600 755

.70 175 2270 1070 1920 905 1590 750

.75 185 2225 1050 1880 885 1545 730

NOTE - All air data is measured external to the unit with dry coil and without air filter.

Page 12

BLOWER DATA CHP16/20

CHP16/20Ć024 BLOWER PERFORMANCE 230 VOLTS (With DownĆFlow Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s cfm L/s

0 0 1385 655 1025 485 900 425 685 325

.05 12 1380 650 1035 490 915 430 700 330

.10 25 1365 645 1045 495 925 435 710 335

.15 37 1350 635 1045 495 930 440 715 335

.20 50 1330 630 1040 490 930 440 715 335

.25 62 1305 615 1030 485 925 435 715 335

.30 75 1275 600 1010 475 915 430 705 335

.40 100 1205 570 965 455 880 415 680 320

.50 125 1120 530 890 420 820 385 640 300

.60 150 1015 480 800 380 740 350 585 275

.70 175 900 425 685 325 640 300 510 240

.75 185 835 395 615 290 580 275 470 220

NOTE Ċ For 208v unit operation, derate air volume by 7% All air data is measured external to the unit with dry coil and without air filter.

CHP16/20Ć024 BLOWER PERFORMANCE 230 VOLTS (With Horizontal Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s cfm L/s

0 0 1435 675 1035 490 895 420 625 295

.05 12 1420 670 1050 495 915 430 645 305

.10 25 1400 660 1060 500 925 435 660 310

.15 37 1380 650 1060 500 935 440 670 315

.20 50 1360 640 1060 500 935 440 675 320

.25 62 1335 630 1050 495 930 440 675 320

.30 75 1305 615 1035 490 920 435 670 315

.40 100 1235 585 985 465 875 415 650 305

.50 125 1155 545 910 430 810 380 605 285

.60 150 1065 505 810 380 720 340 545 255

.70 175 960 455 690 325 605 285 465 220

.75 185 905 425 620 295 540 255 415 195

NOTE Ċ For 208v unit operation, derate air volume by 7% All air data is measured external to the unit with dry coil and without air filter.

Air Volume at Various Blower Speeds

High

MediumĆ

High

Air Volume at Various Blower Speeds

MediumĆ

High

MediumĆ

Low

MediumĆ

Low

CHP16/20Ć030 BLOWER PERFORMANCE 230 VOLTS (With Horizontal Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s cfm L/s

Air Volume at Various Blower Speeds

High

MediumĆ

High

MediumĆ

Low

0 0 1485 700 1345 635 111 5 525 920 435

.05 12 1480 700 1340 630 1120 530 930 440

.10 25 1465 690 1335 630 1120 530 940 445

.15 37 1455 685 1325 625 111 5 525 945 445

.20 50 1435 675 1315 620 111 0 525 945 445

.25 62 1420 670 1305 615 1105 520 940 445

.30 75 1400 660 1285 605 1095 515 935 440

.40 100 1350 635 1250 590 1065 505 910 430

.50 125 1295 610 1200 565 1025 485 875 415

.60 150 1230 580 1145 540 975 460 820 385

.70 175 1160 545 1075 505 915 430 755 355

.75 185 1120 530 1040 490 885 420 720 340

NOTE Ċ For 208v unit operation, derate air volume by 7% All air data is measured external to the unit with dry coil and without air filter.

CHP16/20Ć036 BLOWER PERFORMANCE 230 VOLTS (With DownĆFlow Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s cfm L/s

Air Volume at Various Blower Speeds

High

MediumĆ

High

MediumĆ

Low

0 0 1360 640 1270 600 1070 505 890 420

.05 12 1355 640 1250 590 1060 500 885 420

.10 25 1350 635 1230 580 1050 495 880 415

.15 37 1330 630 1220 575 1035 490 870 410

.20 50 1310 620 1210 570 1020 480 860 405

.25 62 1295 610 1190 560 1005 475 845 340

.30 75 1280 605 1170 550 990 470 830 390

.40 100 1230 580 1130 535 960 455 800 380

.50 125 1170 550 1070 505 910 430 760 360

.60 150 1100 520 990 465 850 400 700 330

.70 175 1020 480 890 420 780 370 620 295

.75 185 975 460 830 390 740 350 570 270

NOTE Ċ For 208v unit operation, derate air volume by 7% All air data is measured external to the unit with dry coil and without air filter.

CHP16/20Ć030 BLOWER PERFORMANCE 230 VOLTS (With DownĆFlow Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s cfm L/s

Air Volume at Various Blower Speeds

High

MediumĆ

High

MediumĆ

Low

0 0 1485 700 1250 590 1085 500 905 425

.05 12 1460 690 1250 590 1075 505 900 425

.10 25 1430 675 1240 585 1070 505 895 420

.15 37 1400 660 1235 585 1060 500 890 420

.20 50 1375 650 1225 580 1045 495 885 420

.25 62 1345 635 1215 575 1035 490 875 415

.30 75 1315 620 1200 565 1020 480 865 410

.40 100 1255 590 1165 550 990 465 835 395

.50 125 1190 560 1125 530 950 450 805 380

.60 150 1125 530 1075 510 910 430 770 365

.70 175 1060 500 1015 480 865 410 725 340

.75 185 1025 485 985 465 840 395 700 330

NOTE Ċ For 208v unit operation, derate air volume by 7% All air data is measured external to the unit with dry coil and without air filter.

Page 13

CHP16/20Ć036 BLOWER PERFORMANCE 230 VOLTS (With Horizontal Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s cfm L/s

Air Volume at Various Blower Speeds

High

MediumĆ

High

MediumĆ

Low

0 0 1450 685 1370 645 1080 510 900 425

.05 12 1430 675 1350 635 1070 505 890 420

.10 25 1410 665 1330 630 1060 500 880 415

.15 37 1395 660 1310 615 1055 500 875 415

.20 50 1380 650 1290 610 1050 495 870 410

.25 62 1360 640 1270 600 1040 490 860 405

.30 75 1340 630 1250 590 1030 485 850 400

.40 100 1300 615 1210 570 1010 475 830 390

.50 125 1250 590 1170 550 970 460 810 380

.60 150 1200 565 1120 530 930 440 770 365

.70 175 1150 545 1060 500 890 420 710 335

.75 185 1125 530 1025 485 870 410 670 315

NOTE Ċ For 208v unit operation, derate air volume by 7% All air data is measured external to the unit with dry coil and without air filter.

BLOWER DATA CHP16/20 Cont.

External Static

CHP16/20Ć036 BLOWER PERFORMANCE 460 VOLTS (With DownĆFlow Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s

0 0 1560 735 1380 650 1070 505

.05 12 1555 735 1355 640 1075 505

.10 25 1540 725 1330 630 1080 510

.15 37 1510 715 1320 625 1070 505

.20 50 1475 695 1315 620 1060 500

.25 62 1450 685 1295 610 1040 490

.30 75 1430 675 1270 600 1025 485

.40 100 1360 640 1215 575 980 460

.50 125 1280 605 1145 540 925 435

.60 150 1185 560 1045 495 850 400

.70 175 1070 505 925 435 750 355

.75 185 990 465 860 405 680 320

NOTE Ċ All air data is measured external to the unit with dry coil and without air filter.

CHP16/20Ć036 BLOWER PERFORMANCE 460 VOLTS (With Horizontal Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s

0 0 1665 785 1490 705 1080 510

.05 12 1640 775 1465 690 1080 510

.10 25 1610 760 1440 680 1080 510

.15 37 1585 750 1420 670 1075 505

.20 50 1555 735 1400 660 1070 505

.25 62 1525 720 1380 650 1060 500

.30 75 1495 705 1355 640 1050 495

.40 100 1435 675 1300 615 1015 480

.50 125 1365 645 1250 590 985 465

.60 150 1295 610 1180 555 935 440

.70 175 1205 570 1100 520 860 405

.75 185 1145 540 1060 500 800 380

NOTE Ċ All air data is measured external to the unit with dry coil and without air filter.

CHP20-042 CHP16/20Ć048 BLOWER PERFORMANCE 230 VOLTS (With Down-Flow Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s cfm L/s

0 0 2015 950 1610 760 1425 670 1240 585 .05 12 2000 945 1595 755 1420 670 1235 585 .10 25 1980 935 1580 745 1415 670 1235 585 .15 37 1960 925 1575 745 1415 670 1230 580 .20 50 1935 915 1560 735 1405 665 1225 580 .25 62 1910 900 1540 725 1395 660 1215 575 .30 75 1885 890 1520 715 1385 655 1205 570 .40 100 1825 860 1485 700 1355 640 1185 560 .50 125 1760 830 1445 680 1315 620 1160 550 .60 150 1690 800 1395 660 1260 595 1130 535 .70 175 1615 760 1335 630 1190 560 1095 515 .75 185 1575 745 1300 615 1145 540 1065 505

NOTE Ċ For 208v unit operation, derate air volume by 7% All air data is measured external to the unit with dry coil and without air filter.

Air Volume at Various Blower Speeds

High Medium Low

Air Volume at Various Blower Speeds

High Medium Low

Air Volume at Various Blower Speeds

High

MediumĆ

High

MediumĆ

Low

CHP20-042 CHP16/20Ć048 BLOWER PERFORMANCE 230 VOLTS (With Horizontal Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s cfm L/s

Air Volume at Various Blower Speeds

High

MediumĆ

High

MediumĆ

Low

0 0 2075 980 1675 790 1445 680 1275 600 .05 12 2060 970 1660 785 1440 680 1270 600 .10 25 2040 965 1645 775 1435 675 1270 600 .15 37 2020 955 1635 770 1435 675 1265 595 .20 50 1995 940 1620 765 1425 670 1260 595 .25 62 1965 930 1600 755 1415 670 1250 590 .30 75 1940 915 1580 745 1405 665 1240 585 .40 100 1880 890 1545 730 1375 650 1220 575 .50 125 1815 855 1500 710 1335 630 1195 565 .60 150 1740 820 1450 685 1280 605 1165 550 .70 175 1655 780 1395 660 1210 570 1130 535 .75 185 1605 755 1365 645 1165 550 1110 525

NOTE Ċ For 208v unit operation, derate air volume by 7% All air data is measured external to the unit with dry coil and without air filter.

CHP16/20Ć048 BLOWER PERFORMANCE 460 VOLTS (With DownĆFlow Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s

Air Volume at Various Blower Speeds

High Medium Low

0 0 2075 980 1650 780 1105 520 .05 12 2045 965 1635 770 1105 520 .10 25 2015 950 1625 765 1100 520 .15 37 1980 935 1615 760 1100 520 .20 50 1945 920 1600 755 1095 515 .25 62 1915 905 1585 750 1090 515 .30 75 1880 890 1570 740 1085 510 .40 100 1810 855 1535 725 1070 505 .50 125 1735 820 1490 705 1045 495 .60 150 1650 780 1430 675 1010 475 .70 175 1555 735 1355 640 965 455 .75 185 1500 710 1310 620 935 440

NOTE Ċ All air data is measured external to the unit with dry coil and without air filter.

CHP16/20Ć048 BLOWER PERFORMANCE 460 VOLTS (With Horizontal Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s

Air Volume at Various Blower Speeds

High Medium Low

0 0 2090 985 1755 830 111 5 525 .05 12 2065 975 1740 820 111 5 525 .10 25 2035 960 1720 810 111 0 525 .15 37 2005 945 1705 805 111 0 525 .20 50 1975 930 1685 795 1105 520 .25 62 1950 920 1675 790 1100 520 .30 75 1920 905 1650 780 1095 515 .40 100 1860 880 1600 755 1080 510 .50 125 1790 845 1555 735 1055 500 .60 150 1720 810 1495 705 1020 480 .70 175 1640 775 1425 670 975 460 .75 185 1595 755 1385 655 945 445

NOTE Ċ All air data is measured external to the unit with dry coil and without air filter.

Page 14

BLOWER DATA CHP16/20 Cont.

External

External Static

CHP16/20Ć060 BLOWER PERFORMANCE 230 VOLTS (With Down-Flow Air Openings)

External

Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s

0 0 2450 1155 2200 1040 1990 940 1760 830 1460 690

.05 12 2430 1145 2180 1030 1980 935 1750 825 1470 695

.10 25 2410 1135 2170 1025 1970 930 1740 820 1490 705

.15 37 2390 1130 2160 1020 1960 925 1730 815 1500 710

.20 50 2360 111 5 2140 1010 1950 920 1720 810 1490 705

.25 62 2340 1105 2120 1000 1930 910 1710 805 1490 705

.30 75 2320 1095 2100 990 1910 900 1700 800 1480 700

.40 100 2270 1070 2060 970 1880 885 1670 780 1470 695

.50 125 2230 1052 2010 950 1830 865 1640 775 1430 675

.60 150 2170 1025 1930 910 1780 840 1600 755 1390 655

.70 175 2120 1000 1890 890 1730 815 1550 730 1340 630

.75 185 2080 980 1850 875 1700 800 1530 720 1310 620

NOTE Ċ For 208v unit operation, derate air volume by 7% All air data is measured external to the unit with dry coil and without air filter.

Air Volume at Various Blower Speeds

High

MediumĆ

High

Medium

MediumĆ

Low

CHP16/20Ć060 BLOWER PERFORMANCE 460 VOLTS (With DownĆFlow Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s

Air Volume at Various Blower Speeds

High Medium Low

0 0 2450 1155 2090 985 1740 820

.05 12 2430 1145 2080 980 1740 820

.10 25 2410 1135 2060 970 1730 815

.15 37 2390 1130 2040 965 1720 810

.20 50 2360 1115 2020 955 1710 805

.25 62 2340 1105 2000 945 1700 800

.30 75 2320 1095 1990 940 1680 795

.40 100 2270 1070 1940 915 1630 770

.50 125 2230 1050 1880 885 1590 750

.60 150 2170 1025 1840 870 1520 715

.70 175 2120 1000 1770 835 1460 690

.75 185 2080 980 1740 820 1440 680

NOTE Ċ All air data is measured external to the unit with dry coil and without air filter.

CHP16/20Ć060 BLOWER PERFORMANCE 230 VOLTS (With Horizontal Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s cfm L/s cfm L/s

High

Air Volume at Various Blower Speeds

MediumĆ

High

Medium

MediumĆ

Low

0 0 2570 1215 2220 1050 2000 945 1780 840 1510 715

.05 12 2560 1210 2210 1045 1990 940 1780 840 1520 715

.10 25 2540 1200 2200 1040 1980 935 1770 835 1530 720

.15 37 2520 1190 2190 1035 1970 930 1770 835 1520 715

.20 50 2500 1180 2180 1030 1960 925 1760 830 1510 715

.25 62 2480 1170 2160 1020 1940 915 1750 825 1510 715

.30 75 2440 1150 2140 1010 1920 905 1740 820 1500 710

.40 100 2390 1130 2100 990 1900 895 1710 805 1470 695

.50 125 2320 1095 2060 970 1860 880 1670 790 1440 680

.60 150 2240 1055 2010 950 1810 855 1630 770 1400 660

.70 175 2160 1020 1950 920 1760 830 1580 745 1350 635

.75 185 2120 1000 1920 905 1720 810 1560 735 1330 630

NOTE Ċ For 208v unit operation, derate air volume by 7% All air data is measured external to the unit with dry coil and without air filter.

CHP16/20Ć060 BLOWER PERFORMANCE 460 VOLTS (With Horizontal Air Openings)

External Static

Pressure

in. w.g. Pa cfm L/s cfm L/s cfm L/s

Air Volume at Various Blower Speeds

High Medium Low

0 0 2570 1215 2100 990 1760 830

.05 12 2560 1210 2090 985 1770 835

.10 25 2540 1200 2070 975 1760 830

.15 37 2520 1190 2050 965 1760 830

.20 50 2500 1180 2030 960 1750 825

.25 62 2480 1170 2010 950 1740 820

.30 75 2440 1150 2000 945 1720 810

.40 100 2390 1130 1960 925 1670 790

.50 125 2320 1095 1910 900 1620 765

.60 150 2240 1105 1870 880 1550 730

.70 175 2160 1020 1800 850 1490 705

.75 185 2120 1000 1760 830 1470 695

NOTE Ċ All air data is measured external to the unit with dry coil and without air filter.

Page 15

ACCESSORY BLOWER DATA CHA/CHP16/20

Unit

Volume

Filter

With Optional

With

024

030 048

060

Unit

Air

Model

FD9Ć65

024

030 048

060

Model Numb

CHA16 030

Model Numb

CHP16/20 024

CHP16/20 030 CHP16/20-048

FILTER AND ACCESSORY AIR RESISTANCE CHA/CHP16/20

Unit

Model

No.

024 030 036

042

060

DIFFUSER AIR RESISTANCE CHA/CHP16/20

Model

No.

024 030 036

o42

060

Air

Volume

cfm L/s

1 in. (25mm)

Filter

Furnished

600 285 .13 (32) .05 (12) .21 (52) .09 (22) .12 (30) .07 (17)

800 380 .15 (37) .05 (12) .27 (67) .13 (32) .18 (45) .10 (25) 1000 470 .18 (45) .06 (15) .34 (85) .18 (45) .26 (65) .15 (37) 1200 565 .21 (52) .09 (22) .42 (104) .24 (60) .35 (87) .21 (52) 1400 660 .25 (62) .15 (37) .51 (127) .31 (77) .46 (114) .29 (72) 1600 755 .15 (37) .05 (12) .40 (99) .27 (67) .30 (75) .17 (42) 1800 850 .17 (42) .06 (15) .48 (119) .33 (82) .35 (87) .19 (47) 2000 945 .20 (50) .08 (20) .56 (139) .39 (97) .40 (99) .22 (55) 2200 1040 .23 (57) .10 (25) .66 (164) .46 (114) .47 (117) .26 (65)

Air

Volume

cfm L/s 2 Ends Open 1 Side 2 Ends Open All Ends & Sides Open

600 285 .12 (30) .11 (27) .08 (20) .08 (20)

800 380 .15 (37) .13 (32) .11 (27) .11 (27) 1000 470 .19 (47) .16 (40) .14 (35) .14 (35) 1200 565 .25 (62) .20 (50) .17 (42) .17 (42) 1400 660 .33 (82) .26 (65) .20 (50) .20 (50) 1600 755 .43 (107) .32 (80) .20 (50) .24 (60) 1800 850 .56 (139) .40 (90) .30 (75) .30 (75) 2000 945 .73 (182) .50 (124) .36 (90) .36 (90) 2200 1040 .95 (236) .63 (157) .44 (109) .44 (109)

Less Filter

RTD9Ć65 Diffuser

Total Air Resistance Ċ inches water gauge (Pa)

REMD16 DownĆFlow Economizer

With Optional

Pleated

Polyester

2 in. (51mm) Filter

Total Air Resistance Ċ inches water gauge (Pa)

With Optional

Fiberglass

2 in. (51mm)

Filter

EMDH16 Horizontal

Economizer

With

Furnished

1 in. (25mm)

Filter

FD9Ć65

Diffuser

Less Filter

WET INDOOR COIL AIR RESISTANCE CHA16

CHA16-024

CHA16-030

CHA16-036

CHA16-048

CHA16-060

CEILING DIFFUSER AIR THROW DATA CHA16 CHP16/20

Model No. RTD9-65 FD9-65

Air Volume

cfm L/s ft. m ft. m

1000 470

1200 565

1400 660

1600 755

1800 850

2000 945

2200 1040

Effective throw based on terminal velocities of 75 ft. (22.9 m) per minute.

Air Volume

cfm L/s in. w.g. Pa

600 285

800 380

1000 470

1200 565

800 380

1000 470

1200 565

800 380

1000 470

1200 565

1400 660

1600 755

1800 850

2000 945

2200 1040

1600 755

1800 850

2000 945

2200 1040

Effective Throw Effective Throw Ċ ft.

10-17 3-5 15-20 5-6 11-18 3-5 16-22 5-7 12-19 4-6 17-24 5-7 12-20 4-6 18-25 5-8 13-21 4-6 20-28 6-9 14-23 4-7 21-29 6-9 16-25 5-8 22-30 7-9

Air Resistance

0.05 12

0.06 15

0.07 17

0.08 20

0.09 22

0.10 25

0.11 27

0.09 22

0.10 25

0.11 27

0.12 30

0.11 27

0.12 30

0.13 32

0.14 35

0.08 20

0.09 22

0.10 25

0.11 27

(m)

WET INDOOR COIL AIR RESISTANCE CHP16/20

CHP16/20-024

CHP16/20-030

CHP16/20-036

CHP20--042

CHP16/20-060

Air Volume

cfm L/s in. w.g. Pa

600 285

800 380

1000 470

800 380

1000 470

1200 565

800 380

1000 470

1200 565

1400 660

1600 755

1800 850

2000 945

2200 1040

1600 755

1800 850

2000 945

2200 1040

Air Resistance

0.05 12

0.06 15

0.07 17

0.09 22

0.10 25

0.11 27

0.07 17

0.08 20

0.09 22

0.10 25

0.12 30

0.13 32

0.14 35

0.15 37

0.16 40

0.11 27

0.12 30

0.13 32

0.14 35

Page 16

BLOWER ASSEMBLY

ELECTRICHEAT

ELEMENT

CHA/CHP16, CHP20 PARTS ARRANGEMENT

(shown with scroll compressor)

CONDENSER FAN

COMPRESSOR

CONTROL BOX

CMCI DEFROST

CONTROL

TRANSFORMER

TERMINAL STRIP

TB32

TRANSFORMER T4

(024, 030, 036)

FAN RELAY

INBLOOR BLOWER

CONTACTOR K3

COMPRESSOR

CONTACTOR K1

FIGURE 1

CHA/CHP16, CHP20 CONTROL BOX

HARD START RELAY K31

CHA/CHP16-024/030

OUTDOOR

K10

DEFROST

RELAY

TRANSFER

REALY

LATCH RELAY

TRANSFORMER T4

(042, 048, 060)

CAPACITOR C12

ALL P VOLT UNITS

CAPACITOR C1

CHP20-036, -060 G,J,M VOLTS

CHA/CHP16-036 G, J, M VOLTS

ALL Y VOLTAGE UNITS

CAPACITOR C1

CHP16/20-048-G. J, M, VOLTS

CHP16-060-G, J, M, VOLTS

FIGURE 2

Page 17

CAPACITOR C7

CHA/CHP16-024/030

I-APPLICATION

CHA/CHP16/20 2, 2 1/2 and 3 ton units are in the one cabiĆ net size. CHA/CHP16/20 3.5, 4 and 5 ton units are also one in one cabinet size. All CHA/CHP16/20 model units are apĆ plicable for commercial, single or three phase installations. CHA/CHP16/20 models are factory equipped with the hardĆ ware required for installing Lennox' optional thermostat conĆ trol systems like the T7300 or T8600 (refer to the EngineerĆ ing Handbook for more specific application data).

II-UNIT COMPONENTS

CHA/CHP16/20 unit components are shown in figure 1.

A-Control Box Components

CHA/CHP16/20 control box is shown in figure 2. The control box is located adjacent to the compressor compartment, beĆ hind the control box access panel in front of the unit.

The condenser fan can be accessed by removing the fan grill located on top of the unit.

The indoor blower access panel (all units) is located on the opposite side of the unit from the heating compartment acĆ cess.

1-Transformer T1

All CHA/CHP16/20 series units use a single line voltage to 24VAC transformer mounted in the control box. The transĆ former supplies power to control circuits in the unit. TransĆ formers are rated at 70VA and use two primary voltage taps as shown in figure 3. T1 is protected by a 3.5 amp circuit breaker (CB8).

208 / 240 VOLT TRANSFORMER

PRIMARY SECONDARY

ORANGE

240 VOLTS

RED

208 VOLTS

BLUE

24 VOLTS

DANGER

Single -phase units use single

pole contactors. One leg of comĆ

pressor, capacitor and condensĆ er fan are connected to line voltĆ

age at all times.

Remove all power to disconnect

before servicing.

Electrical shock resulting in

death or injury may result if power is not disconnected.

NOTE-Contactor K1 is energized by the thermostat control system. Depending on the control system installed, the contactor may or may not be immediately energized upon demand.

3-Indoor Blower Relay K3 (Cooling Speed)

208/230 volt units use a single DPDT relay to energize the indoor blower motor. 460 volt and 575 volt units use a single 3PDT relay.

CHP16/20 units (singleĆphase and threeĆphase) use a conventional 2 heat / 2 cool thermostat. Transfer relay K8 is used to direct power to blower relay K3 depending on whether the unit is in cooling or heating mode. In cooling mode transfer relay K8 is deĆenergized and blower relay K3 is energized by thermostat terminal G through K8Ć1 normalĆ ly closed contacts. In heating mode transfer relay K8 is enĆ ergized and blower relay K3 is energized directly by transĆ former T1 through K8Ć1 normally open contacts.

460 (G) voltage units use a unique blower motor which reĆ quires the 3PDT relay. The motor utilizes the extra set of N.C. relay contacts to complete an internal circuit when the motor is on heating speed. Refer to the blower motor section of this manual for more information.

BLACK

FIGURE 3

YELLOW

2-Cooling Contactor K1

K1 is a 24V to line voltage contactor used to energize the compressor and condenser fan in response to thermostat demand. Three-phase units use three-pole double-break contactors. Single-phase units use single-pole contactors.

Page 18

4-Defrost Relay K4 (CHP Models Only)

Relay K4 initiates defrost in response to demand. K4 is enĆ ergized when defrost thermostat S6 closes and defrost conĆ trol CMC1 calls for defrost. Once energized, contacts K4Ć1 open to reset the internal timer to zero, contacts K4Ć2 close to energize the electric heat (if installed) and K4Ć3 closes to latch condenser fan relay K10 and defrost relay K4 through defrost cycle.

5-Start Capacitor C7

Compressor start capacitor C7 is used in CHA/ CHP16-024/030 units only, and located in the compressor compartment. C7 is connected in parallel with capacitor (C12). The capacitor is energized during compressor startĆ up and is switched off by potential relay K31 when the comĆ pressor nears full speed. See side of capacitor for ratings.

The start capacitor uses a 15K ohm 2 watt bleed" resistor connected in parallel with the capacitor terminals. The resisĆ tor is used to slowly discharge the capacitor when not in use.

6-Dual Capacitor C12

Single phase CHA/CHP16/20 model units use a single dual" capacitor, connected to both the fan motor and the compressor. A dual capacitor is two independent capacitors inside one can. Each side of the capacitor has different ratĆ ings and will be printed on the side.The capacitor is located inside the compressor compartment.

7-Condenser Fan Relay K10

Condenser fan relay K10, used in all CHP16/20 units, is a DPDT relay with a 24V coil. In all units K10 de-energizes conĆ denser fan B4 in response to defrost demand.

8-Latch Relay K6

CHP16/20 commercial units are designed to use convenĆ tional heat/cool thermostats and are equipped with latch relay K6. Latch relay K6 is used in commercial heat pumps to control operation of the reversing valves when a heat/cool thermostat is used.

CHP16/20 series units are plumbed so that the unit is in coolĆ ing mode when the reversing valve is energized. Latch relay K6 controls operation of the reversing valves and is controlled by the indoor thermostat.

A latch relay (figure 4) is a special type of relay with two coils; a SET" coil and a RESET" coil. When 24VAC is applied to the SET" coil, the normally open contacts close and the norĆ mally closed contacts open. When power is removed from the SET" coil, nothing happens; the N.O. contacts remain closed and the N.C. contacts remain open. The contacts do not return to their normal position until the RESET" coil is energized. Once the contacts are reset, they remain in their normal position when power is removed.

CHP16/20 series units use a

LATCH RELAY K6

DPDT latch relay. One set of normally open contacts is conĆ nected in series with thermostat Y1 and compressor contactor K1 while the matching normally closed contacts are connected in series with thermostat W1 and compressor contactor K1.

The other set of normally open contacts is connected in series

568

RESET

13 14

SET

FIGURE 4

with the reversing valve. When the SET" coil is energized (Y1), the normally open contacts close to energize the reversing valve (thereby placing the unit in cooling mode) and to energize

the compressor contactor. When power is removed from the SET" coil (such as when cooling demand is satisfied), the normally open contacts remain closed, the reversing valve remains energized and the unit reĆ mains in cooling mode.

9-Transfer Relay K8

The combined operation of latch relay K6 and transfer relay K8 allow the CHP16 to use a conventional heat/cool thermoĆ stat as opposed to a heat pump thermostat. Transfer relay K8 switches thermostat blower demand from cooling mode to heating mode. Relay K8 routes blower demand from the appropriate thermostat output to the blower relay depending on whether the unit is in cooling or heating mode.

During cooling mode, the blower relay receives power from thermostat terminal G (relay K8 deĆenergized). During heating demand transfer relay K8 is energized. When K8 is energized, power routing is switched so that the blower relay receives power from heating thermostat demand (W1).

10-Potential Relay K31

Relay K31 is used in the CHA/CHP16-024/030 models ONLY and is located in the control box. It is a potential relay which controls the operation of the compressor starting circuit. The relay is normally closed when the compressor (contactor K1) is de-energized. Capacitor (C7) is connected to a set of norĆ mally closed K31 contacts and assists the compressor in starting. When K1 energizes, the compressor immediately beĆ gins startĆup. K31 remains de-energized during compressor start-up and the start capacitor (C7) remains in the circuit. As the compressor gains speed K31 is energized by electromoĆ tive forces generated by the compressor. When K31 enerĆ gizes, its contacts open to take the start capacitor out of the circuit.

Page 19

11-Defrost Control CMC1

The CMC1 defrost control (figure 5 ) is a solid state control which provides automatic switching from normal heating operaĆ tion to defrost mode and back. The control provides maximum 14 minute defrost periods at 30, 60 or 90Ćminute fieldĆchangeĆ able intervals. Each control monitors thermostat demand and holds" the timer in place between thermostat demand. A set of diagnostic pins are also provided for troubleshooting the refrigĆ eration circuit.

The control contains a solid state timer which switches an exĆ ternal defrost relay through 1/4" male spades mounted on the control's circuit board. The control energizes the defrost relay at regular timed intervals. Defrost thermostat S6 initiates deĆ frost and pressure switch S46 terminates defrost. If S46 does not terminate defrost, CMC1 will terminate defrost after 14 minutes.

SOLID STATE DEFROST TIMER

TIMING JUMPER

TIMING PINS

TROUBLESHOOTING

PINS

CONTROL

TERMINALS

IMPORTANT

Prevent control damage. Avoid contact with other control terminals or control components.

NEEDLE-NOSE

PLIERS

IMPORTANT

Prevent control damage. Do not connect timing jumper to either TST" pin.

TO CHANGE CONTROL TIMINGS:

1- Turn off all power to the unit to avoid damaging the circuit board. 2- Grasp wire connector firmly with needle nose pliers as shown. 3- Gently pull connector from pin. 4- Select new timing pin. DO NOT SELECT A TST" PIN. 5- Gently push connector onto desired pin (see Table 1 for timings).

Connector is seated when pin snaps.

6- Turn on power to unit.

FIGURE 5

When the indoor thermostat closes (call for heat or cool), deĆ frost timer initiates 30, 60 or 90Ćminute (depending on how the control is preset) timing sequence. At the end of the timing seĆ quence, the control attempts to energize the defrost relay. If both defrost thermostat and defrost pressure switch are closed when timing sequence ends, the defrost relay is enerĆ gized and defrost begins. Consequently, the defrost pressure switch must open in order for defrost to be terminated (defrost can also be terminated by the internal timer of the defrost conĆ trol).

Defrost Control Components

a- Timing Pins 30(T1), 60(T2), 90(T3)

Each of these pins provides different timed interval beĆ tween defrosts. A jumper connects the pins to circuit board pin W1. Table 1 shows the timings of each pin. The defrost interval can be field changed to 30, 60 or 90 minutes. The defrost period (14 minutes) cannot be changed. To change the interval between defrosts, simĆ ply remove the jumper from the pin it is connected to and reconnect the jumper to one of the other available pins (see figure 6).

b- Timing Jumper

A timing jumper is factory installed on the circuit board and is used to connect pin W1 to one of three timing pins. The jumper may be connected to any one timing pin but must never be connected to the TST" pins. See following Caution.

IMPORTANT

Potential for control damage.

Do not connect timing jumper to TST" pins. TST" pins are used only during a test and must not connect with timing pins.

TABLE 1

DEFROST

CONTROL CMC

TIMINGS

NORMAL

OPERATION

TST" PINS

JUMPERED

TOGETHER

c- 24V" Terminal

Terminal 24V" receives 24VAC from the control transĆ former. This terminal powers the control's internal timer and relays. Terminal 24V" must be powered at all times in order to provide HOLD" between thermostat deĆ mands.

INTERVAL BETWEEN

DEFROSTS WITH

JUMPER CONNECTED TO:

30 (T1) 60 (T2) 90 (T3)

30 + 3 60 + 6 90 + 9 14 + 1.4

MIN. MIN. MIN. MIN.

7 + 0.7 14 + 1.4 21 + 2.1 3.3 + 0.3

SEC. SEC. SEC. SEC.

DEFROST

TIME

Page 20

TO PLACE CONTROL IN TEST MODE:

1- Turn off all power to avoid damaging the circuit board. 2- Make sure all control terminals are connected as shown on unit

wiring diagram before attempting to place control in test mode. See NOTE below.

NOTE - Control will not go into test mode when disconĆ nected from unit. Unit load must be applied to control termiĆ nals before the control will go into test mode.

3- Connect jumper to TST" pins as shown. 4- Turn indoor thermostat to heat mode and adjust to highest temperaĆ

ture setting. 5- Turn on power to unit. 6- See Table 1 for control timings in TST" mode. 7- Be sure to turn off power and remove jumper when test is complete.

Turn on power and re-adjust thermostat.

IMPORTANT

Prevent control damage. Avoid contact with other control terminals or control components.

FIGURE 7

d- COM" Terminal

Terminal COM" provides 24VAC common.

e- HLD" Terminal

Terminal HLD" holds an internal timer in place between thermostat demands and allows the unit to continue timĆ ing upon resumption of thermostat demand. When therĆ mostat demand is present, the control is allowed to count down to the next defrost. Terminal HLD" is connected directly to thermostat demand.

f- OUT" Terminal

Terminal OUT" controls defrost when connected to one side of the defrost relay coil. An internal relay conĆ nected to terminal OUT" closes (allowing an internal path from OUT" to COM") to allow external defrost relay to energize and initiate defrost. At the end of the defrost period, the internal relay connected to terminal OUT" opens to de-energize the external defrost relay.

g- RST" Terminal

Terminal RST" resets the internal timer when power is reĆ moved and begins timer operation when power is returned. Terminal RST" is connected to terminal COM" through a set of normally closed defrost relay contacts. When the deĆ frost relay contacts open terminal RST" loses power (the path through RST" is disrupted) and internal timer is reset. The control resumes timing when the defrost relay contacts close.

h- TST" Pins

Each board is equipped with a set of test pins for use in troubleshooting the unit. When jumpered together, these pins reduce the control timing to a fraction of the original time (see table 1 and figure 7).

IMPORTANT

Prevent control damage.

Control will begin test mode only if normal load is applied to control terminals. Do not attempt to operate or test control out of unit.

A defrost period can last up to 14 minutes and can be termiĆ nated two ways. First, if the defrost pressure switch does not open within 14 minutes after defrost begins, the internal timer (by opening the internal path from OUT" to COM") will de-enĆ ergize the defrost relay and the unit will resume normal operaĆ tion. Second, if the defrost pressure switch opens during the 14 minute defrost period, the defrost relay is de-energized and the unit resumes normal operation. Refer to figure 8.

Page 21

THERMOSTAT DEMAND

DEFROST THERMOSTAT

DEFROST PRESSURE SWITCH

DEFROST RELAY

THERMOSTAT DEMAND

DEFROST THERMOSTAT

DEFROST PRESSURE SWITCH

DEFROST RELAY

THERMOSTAT DEMAND

DEFROST THERMOSTAT

DEFROST PRESSURE SWITCH

DEFROST RELAY

CHP16/20 SERIES UNITS

TYPICAL DEFROST TIMINGS

NO DEFROST (DEFROST THERMOSTAT IS OPEN)

DEFROST TERMINATED BY DEFROST PRESSURE SWITCH

NORMAL HEATING OPERATION:

30/60/90 MINUTES 30/60/90 MINUTES

NORMAL HEATING OPERATION:

30/60/90 MINUTES

NORMAL HEATING OPERATION:

DEFROST TERMINATED BY TIME

30/60/90 MINUTES 14 MIN 30/60/90 MINUTES

DEFROST PRESSURE SWITCH

OPEN WITHIN 14 MINUTES

CLOSED, ON

OPEN, OFF

14 MIN

THERMOSTAT DEMAND

INTERRUPTED BY THERMOSTAT DEMAND: HOLD" FUNCTION

DEFROST THERMOSTAT

DEFROST PRESSURE SWITCH

DEFROST RELAY

INTERRUPTED BY THERMOSTAT DEMAND: HOLD" FUNCTION

THERMOSTAT DEMAND

DEFROST THERMOSTAT

DEFROST PRESSURE SWITCH

DEFROST RELAY

NORMAL HEATING OPERATION:

30/60/90 MINUTES PLUS HOLD" TIME

DEFROST PERIOD

30/60/90 MINUTES

FIGURE 8

B-Cooling Components (Figures 9 and 10)

Figures 9 and 10 show CHP16/20 heat pump units. CHP16/20 units will be equipped with reversing valve, deĆ frost components, drier and check/expansion valve. CHA16 units will be equipped with a liquid line strainer and expansion valve (no check). Common components are high pressure switch, suction and liquid line service gauge ports.

1-Reciprocating Compressor

All CHA/CHP16-024/030 units are equipped with a reciproĆ cating compressor. All reciprocating compressors are proĆ tected by internal pressure relief valves for overload and inĆ ternal crankcase heaters HR1 for proper lubrication. ComĆ pressor B1 operates during cooling and heating demand,

HOLD"

TIME

HOLD" TIME

14 MINUTES PLUS HOLD" TIME

and is energized by contactor K1 upon receiving thermosaĆ tat demand. For compressor specifications see compressor nameplate or ELECTRICAL DATA section in this manual.

DANGER

Shock hazard.

Compressor must be grounded. Do not operate without protective cover over terminals. Capacitors contain high voltage. Disconnect power before removing cover. Discharge capacitors before serĆ vicing unit. Disconnect power beĆ fore servicing unit.

Can cause unsafe operation, injuĆ ry or death.

Page 22

COOLING COMPONENTS

CHP16-024/030 SHOWN

DRIER

DEFROST PRESSURE SWITCH

S46

HIGH PRESSURE SWITCH

RECIPROCATING COMPRESSOR

REVERSING VALVE

OUTDOOR TXV VALVE

DEFROST PRESSURE SWITCH

SENSING BULB

DRIER

DEFROST PRESSURE SWITCH

S46

HIGH PRESSURE SWITCH

SCROLL COMPRESSOR

CHP20-024

REVERSING VALVE

OUTDOOR TXV VALVE

DEFROST PRESSURE SWITCH

FIGURE 9

Page 23

COOLING COMPONENTS

CHP20-030, CHA/CHP16/20-036

DRIER

DEFROST PRESSURE SWITCH

S46

HIGH PRESSURE SWITCH

SCROLL COMPRESSOR

CHA/CHP16-048/060, CHP20-042/048/060

INDOOR TXV VALVE

REVERSING VALVE

OUTDOOR TXV VALVE

DEFROST THERMOSTAT SWITCH

HIGH PRESSURE SWITCH

DEFROST PRESSURE SWITCH

S46

DRIER

REVERSING VALVE

OUTDOOR TXV VALVE

DEFROST THERMOSTAT SWITCH

SCROLL COMPRESSOR

FIGURE 10

Page 24

2-Scroll Compressor

All CHA/CHP16/20 (exĆ cept the CHP16-024/030 units) model units utilize a scroll compressor. The scroll compressor design is simple, efficient and reĆ quires few moving parts. A cutaway diagram of the scroll compressor is shown in figure 11. The scrolls are located in the top of the compressor can and the motor is located in the bottom of the compresĆ sor can. The oil level is imĆ mediately below the motor and oil is pressure fed to the movĆ ing parts of the compressor. The lower portion of the comĆ pressor shell is exposed to low side pressure while only the very top of the shell is exposed to high side pressure.

The scroll is a simple compression concept centered around the unique spiral shape of the scroll and its inherent properĆ ties. Figure 12 shows the basic scroll form. Two identical scrolls are mated together forming concentric spiral shapes (figure 13). One scroll reĆ mains stationary, while the other is allowed to orĆ bit (figure 14-1). Note that the orbiting scroll does not rotate or turn but merely orbits the stationĆ ary scroll.

The counterclockwise orbiting scroll draws gas into the outĆ er crescent shaped gas pocket created by the two scrolls (figure 14-2). The centrifugal action of the orbiting scroll seals off the flanks of the scrolls (figure 14-3). As the orbiting motion continues, the gas is forced toward the center of the scroll and the gas pocket becomes compressed (figure 14-4).

SCROLL COMPRESSOR

DISCHARGE

SUCTION

FIGURE 11

FIGURE 12

When compressed gas reaches the center, it is discharged vertically into a chamber and discharge port in the top of the compressor (figure11). The discharge pressure forcing down on the top scroll helps seal off the upper and lower edges (tips) of the scrolls (figure 13). During a single orbit, several pockets of gas are compressed simultaneously proĆ viding smooth continuous compression.

CROSS-SECTION OF SCROLLS

DISCHARGE PRESSURE

TIPS SEALED BY DISCHARGE PRESSURE

DISCHARGE

STATIONARY SCROLL

SUCTION

ORBITING SCROLL

FIGURE 13

The scroll compressor is tolerant to the effects of liquid reĆ turn. If liquid enters the scrolls, the orbiting scroll is allowed to separate from the stationary scroll. The liquid is worked toward the center of the scroll and is discharged. If the comĆ pressor is replaced, conventional Lennox cleanup practices must be used.

Due to its efficiency, the scroll compressor is capable of drawing a much deeper vacuum than reciprocating comĆ pressors. Deep vacuum operation can cause internal fusite arcing resulting in damaged internal parts and compressor failure. It is permissible to pumpĆdown" the system using the compressor but never use a scroll compressor for drawĆ ing a vacuum on the system. This type of damage can be detected and will result in denial of warranty claims.

CAUTION

The head of a scroll compressor may be hot since it is in constant contact with discharge gas.

Contact could result in serious burns.

For compressor specifications see compressor nameplate or ELECTRICAL DATA section in this manual. All compresĆ sors are protected by internal overload protection circuitry.

Page 25

SUCTION

POCKET

SUCTION

ORBITING SCROLL

STATIONARY SCROLL

MOVEMENT OF ORBIT

SUCTION

FLANKS SEALED

BY CENTRIFIGUAL

FORCE

INTERMEDIATE PRESSURE

GAS

CRECENT SHAPED

GAS POCKET

SUCTION

HIGH PRESURE GAS

FIGURE 14

3-Evaporator Coil

All CHA/CHP16/20 units have a single slab evaporator coil. The CHA16 coils have two rows of rifled copper tubes fitted with ripple-edged alum inum fins and the CHP16/20 coils have three, A Thermal Expansion Valve (TXV) feeds multiple parallel circuits through the coil. See figure 15.

4-Condenser Coil

All CHA/CHP16/20 units have a single condenser coil. Each coil in all units has up to two rows of copper tubes fitted with ripple-edged aluminum enhanced fins.

5-Freezestat Switch S49

All CHA/CHP16/20 model units are equipped with a low temperature freezestat switch S49. S49 is wired in series with high pressure switch S4 and compressor contactor K1. S49 is a SPST N.C. auto-reset switch which opens at 29ºF ± 3 ºF (-1.7ºC 1.7 ºC) on temperature drop and closes at 58ºF ± 4 ºF (14.4ºC ± 2.2 ºC) on a temperature rise. To prevent coil icing, S49 opens during compressor operation to temporariĆ ly disable the compressor until the coil warms sufficiently to melt any accumulated frost.

If S49 trips frequently due to coil icing, check the unit charge, air flow and filters before allowing unit back in operation. Make sure to eliminate conditions which might promote ice build up.

6-High Pressure Switch S4

High pressure switch S4 is standard on all CHP16/20 model units. S4 is a manually reset SPST N.C. high pressure switch which opens on pressure rise. The switch is located on the discharge line and wired in series with compressor contactor K1. When discharge pressure rises above 450±10 psig (3103 kPa± 69 kPa) the switch opens and the

compressor is de-energized (the economizer can continue to operate). After the problem has been found and corĆ rected, the switch can be reset by pushing-in the switch butĆ ton.

EVAPORATOR PLUMBING

CHP16/20-030/036 SHOWN

EQUALIZER

LINE

SENSING

BULB

FIGURE 15

DISCHARGE

POCKET

EXPANSION

VALV E

LIQUID

LINE

7-Reversing Valve L1

All CHP16/20 units are equipped with refrigerant reversing valve L1. L1 has a 24VAC solenoid coil used to reverse reĆ frigerant flow during unit operation. L1 is connected in the vapor line of the refrigerant circuit. Internal thermostat wiring energizes L1 during cooling demand and de-energizes durĆ ing heatingdemand. When thermostat selection is out of cooling mode L1 is de-energized.

Page 26

8-Drier

11-Low Ambient Bypass Relay K58

All CHP16/20 units have a biflo with filter drier located in the liquid line of each refrigerant circuit at the exit of the conĆ denser coil. The drier removes contaminants and moisture from the system.

9-Defrost Thermostat S6

Defrost thermostat S6 works in conjunction with defrost conĆ trol CMC1 to initiate defrost. The switch is a SPST N.O. therĆ mostat located on the liquid line between the outdoor coil distributor and the outdoor coil thermal expansion valve. It remains open during normal cooling and heating operation (to prevent defrosting) and defrost timer CMC1 continues to accumulate time. When outdoor coil temperature drops beĆ

low 35°F +

enabled (call for defrost). If S6 is closed when CMC1 checks for defrost (every 30, 60 or 90 minutes) then defrost relay K4 is energized. S6 remains closed until liquid line temperature

rises above 60°F +

Defrost thermostat S6 is intended only to initiate defrost. Pressure switch S46 is used to terminate defrost. Once deĆ frost starts, contacts K4Ć3 close to latchĆin K10 and K4. TypĆ ically S6 will open before the end of the 14 minute defrost period leaving relay K4 energized through contacts K4-3.

4°F, the switch closes and the defrost circuit is

5°F.

10-Defrost Pressure Switch S46

Defrost pressure switch S46 is a SPST N.C. pressure switch located in the compressor discharge line.

The purpose of the latch circuit is to ensure thorough defrost by forcing defrost relay K4 to terminate only when S46 is satĆ isfied or after the 14 minute defrost time period. When disĆ charge (head) pressure during defrost rises above 275psi + 10psi (1896  69 kPa) the switch opens. At 275psi (1896 kPa), the condensing temperature of HCFCĆ22 refrigerant is

approximately 125°F (52°). Head pressure builds rapidly

due to the outdoor fan being disabled during defrost. By the time head pressure is elevated to 275psi (1896 kPa), the condensing temperature is elevated to the point that the outĆ door coil is defrosted.

If S46 opens during defrost, defrost is terminated (K4 is deĆ energized). S46 automatically resets (closes) when the unit resumes heating operation and discharge (head) pressure drops below 195psi + 10psi.

Optional low ambient bypass relay K58 is a N.O. DPDT relay with a 24VAC coil. K58 is wired in parallel with compressor reversing valve (L1). When L1 is energized in the cooling cycle, K58 is also energized, opening K58-1. Therefore, K58-1 is always closed during heating demand bypassing low ambient switch S11. This allows the fan to operate durĆ ing heating demand and to cycle during cooling demand.

12-Low Ambient Switch S11

Optional low ambient switch S11 is an auto-reset SPST N.O. pressure switch which allows for mechanical cooling operaĆ tion at low outdoor temperatures. S11 is located in the liquid line prior to the indoor coil section. When liquid pressure rises to 275  10 psig (1896  69 kPa), the switch closes and the condenser fan is energized. When liquid pressure in the refrigerant circuit drops to 150  10 psig (1034  69 kPa), the switch opens and the condenser fan is de-enerĆ gized. This intermittent fan operation results in higher evapĆ orating temperature allowing the system to operate without icing the evaporator coil and losing capacity.

C-Condenser Fan and Indoor Blower

1-Condenser Fan and Blower Motor B4

See specifications section of this manual for the specificaĆ tions of condenser fans used. In all CHP units. the condensĆ er fan is energized by contactor K1 and condenser contacĆ tor K10. In all CHA units the condenser fan is controlled by contactor K1.

2-Capacitors C1 & C12

All three phase model units use singleĆphase PSC outdoor fan motors which requires a run capacitor. C1 is located in the compressor compartment. Single phase units use a dual capacitor C12 instead of C1. The dual capacitor is shared between the compressor and outdoor fan. Ratings for caĆ pacitors will be on outdoor fan motor nameplate.

3-Blower Motor B3 & Capacitor C4

All CHA/CHP16/20 series units use singleĆphase PSC blowĆ er motors. A single run capacitor C4 is mounted on the blowĆ er housing. Ratings for capacitor will be on motor nameĆ plate. All motors use multiple speed taps. Typically, the high speed tap is energized during compressor operation and a lower speed tap is energized during heating operation. See motor nameplate or ELECTRICAL DATA section for motor specifications.

Page 27

III-OPTIONAL ECH16 ELECTRIC HEAT

A-Matchups and Ratings

Tables 4 through 15 show all possible CHP16/20 to ECH16 matchups. Also shown in the tables are ECH16 electrical ratings.

B-Electric Heat Components

ECH16 parts arrangement is shown in figure 18. All ECH16 units consist of electric heating elements exposed directly to the airstream. Elements are sequenced on and off by heat relays or contactors in response to thermostat demand.

1-Relay K15

Relay K15 is a singleĆpole singleĆthrow relay located on

the control panel of all commercial singleĆphase ECH16

units (15, 20 and 25 kW). K15 is equipped with a 24VAC

coil which is energized when pilot relay K43 closes.

When K15 is energized, the first stage heating elements

are energized. (HE1 in ECH16Ć15; HE1 and HE2 in

ECH16Ć20 and ECH16Ć25).

2-Contactor K15

Contactor K15 is a threeĆpole doubleĆbreak contactor

used in all commercial threeĆphase ECH16 units. K15 is

equipped with a 24VAC coil which is energized when piĆ

lot relay K43 closes. When K15 is energized, the first

stage heating elements are energized.

Contactor K15 used in ECH16Ć15Ć1Y and ECH16Ć25Ć1G

units is equipped with a set of auxiliary singleĆpole

doubleĆthrow contacts. The auxiliary contacts are not

used in this application.

3-Relay K16

Relay K16 is a singleĆpole singleĆthrow relay located on

the control panel of all commercial singleĆphase ECH16

units (15, 20 and 25 kW). K16 is equipped with a 24VAC

coil which is energized when pilot relay K43 closes.

When K16 is energized, the second stage heating eleĆ

ments are energized (HE2 in ECH16Ć15; HE3 and HE4

in ECH16Ć20 and ECH16Ć25).

4-Contactor K16

Contactor K16 is a threeĆpole doubleĆbreak contactor used in commercial 20 and 25 kW threeĆphase ECH16 units. K16 is equipped with a 24VAC coil which is enerĆ gized when time delay DL2 closes. When K16 is enerĆ gized, the second stage heating elements are enerĆ gized.

5-Relay K17

Relay K17 is a singleĆpole singleĆthrow relay located on the control panel of all commercial singleĆphase ECH16 units (15, 20 and 25 kW). K17 is equipped with a 24VAC coil which is energized when pilot relay K43 closes. When K17 is energized, the third stage heating eleĆ ments are energized (HE3 in ECH16Ć15; HE5 and HE6 in ECH16Ć20 and ECH16Ć25).

6-Resistor R6

A resistor is used in parallel with the coil of heat relay K32 in ECH16RĆ5 electric heaters. The resistor is rated 150 ohm +

10%, 10 watt.

The resistor reduces the effects of inrush current on the thermostat. Heat relay K32 draws approximately 0.7 amps immediately after being energized. As the relay coil heats, the current subsides. Within a few seconds after being energized, the current is reduced to minimum level (approximately 0.18 amps).

Contactor K16 used in ECH16Ć25Ć1Y unit is equipped with a set of auxiliary singleĆpole doubleĆthrow contacts. The auxiliary contacts are not used in this application.

7-Relay K43

Relay K43 is a doubleĆpole doubleĆthrow pilot relay used in all commercial ECH16 units. The relay uses a 24VAC coil which is energized by thermostat demand. The coil is wired in series with the primary high temperature limit S15. If an overtemperature condition becomes present, pilot relay K43 is immediately deĆenergized and electric heat operation immediately stops.

When relay K43 is energized, normally open contacts K43Ć1 and K43Ć2 close. When K43Ć1 closes, contactor K15 (and time delay DL2 if so equipped) are energized to begin electric heat operation. When K43Ć2 closes, the indoor blower begins operating on heating speed.

Page 28

8-Thermal (Heat) Relay K32, K33

Thermal sequencing (heat) relays are used to energize

heating elements in all ECH16R electric heaters. A heat

relay is a normally open relay with a resistive element for

a coil and a bimetal disk actuating the contacts. When

the relay is energized, internal resistance heats the biĆ

metal disk causing the contacts to close. When the relay

is deĆenergized, the disk cools and the contacts open.

A sequencing relay has

multiple contacts. Each

set of contacts is conĆ

nected to a separate biĆ

metal disk. When the

relay is energized, interĆ

nal resistance heats the

bimetal disks at different

rates causing the conĆ

tacts to close at different

times.

The contacts are calibrated to operate on a first on last

off basis. Some heat relays may have two resistive coils;

each with its own set of contacts. Although they are

physically attached, they operate as two independent

relays. Figure 16 shows a typical heat relay.

THERMAL SEQUENCING

TYPICAL

(HEAT) RELAY

9-Fuse F3

F3 is a current limiting fuse connected in series with

each leg of electric heat. See tables 2 or 3 for fuse ratĆ

ings.

10-High Temperature Primary S15

S15 is the primary high temperature limit. It is located in

the electric heat unit immediately downstream from the

heating elements. S15 is a singleĆpole singleĆthrow norĆ

mally closed thermostat. S15 ratings are printed on side

of limit.

In ECH16R series

units, multiple S15 therĆ

mostats may be used.

One S15 thermostat is

wired in series with

each heating element.

When S15 trips, some

heating elements may

remain operable.

In ECH16 commercial units, only one S15 thermostat is

used. A single S15 thermostat is wired in series with pilot

relay K43. When S15 trips, all heating elements are deĆ

energized.

PRIMARY LIMIT S15,

SECONDARY LIMIT S20

FIGURE 17

11-High Temperature Secondary S20

ECH16 commercial units use nonĆresettable thermoĆ stats for secondary high temperature protection. One switch is connected in series with each leg of the eleĆ ment assembly. Each S20 thermostat is physically loĆ cated adjacent to the element it is protecting. S20 is a singleĆpole singleĆthrow normally closed thermostat.

The thermostat actuates at 185°F +

ture rise and cannot be reset. Once tripped, it must be replaced.

8°F on a temperaĆ

12-Heating Elements

ECH16 and ECH16R heating elements are composed of helix wound nichrome wire heating elements which are exposed directly to the airstream. Heating elements

are energized directly by contactors or thermal (heat) reĆ lays located on the control panel. Once energized, heat transfer to the airstream is instantaneous. OvertemperĆ ature protection is provided by primary and secondary high temperature limits. Overcurrent protection (ECH16 commercial units only) is provided by current limiting fuses.

13-Time Delay DL2

Time delay DL2 is an electronic single-pole singlethrow time delay relay used in 20 and 25kW three phase ECH16/20 units. DL2 allows staging by providĆ ing a timed interval between the first and second sets of heating elements. DL2 is energized with contactor K15 when pilot relay K43-1 closes. When the delay coil is energized, it's normally open contacs are delayed 30 seconds before closing. When the delay coil is de-energized, its contacts are delayed one secĆ ond before opening.

Page 29

Electric Heat Relay K15

208/230V 3 PHASE

Electric Heat Relay K16

Electric Heat Relay K17

Pilot Relay K43

Current Limiting Fuses F3

PARTS ARRANGEMENT ECH16-20/25-P SHOWN

K17 K16 K15

K43

S20

S15

Primary Limit S15

Secondary Limit S20

TABLE 2

ECH16 (F3) RATING

UNIT VOLTAGE RATING QUANTITY

ECH16-5

ECH16-7

ECH16-10

ECH16-15

208/230 3

PHASE

208/230 3

PHASE

208/230V

3 PHASE

460V 20 AMP 600V THREE

575V 15 AMP 600V THREE

208/230V

1 PHASE

208/230V

3 PHASE

460V 30 AMP 600V THREE

20 AMP 250V THREE

25 AMP 250V THREE

40 AMP 250V THREE

35 AMP 250V TWO

60 AMP 250V TWO

60 AMP 250V THREE

FIGURE 18

TABLE 3

ECH16 (F3) RATING

UNIT VOLTAGE RATING QUANTITY

ECH16-20

ECH16-25

208/230V 1 PHASE

208/230V 3 PHASE

460V 40 AMP 600V THREE

575V 30 AMP 600V THREE

208/230V 1 PHASE

208/230V

460V 50 AMP 600V THREE

575V 40 AMP 600V THREE

45 AMP 250V SIX

40 AMP 250V SIX

60 AMP 250V SIX

40 AMP 250V THREE

60 AMP 250V THREE

575V 25 AMP 600V THREE

Page 30

TABLE 4 CHA16-024/030

ECH16R 5

ECH16R 26/41

ECH16R 7

ECH16R 26/65

1 step

ECH16-261

ECH16R 10

ECH16R 26/65

ECH16R 15

ECH16R 5

ECH16R 26/41

ECH16R 7

ECH16R 26/65

ECH16-311

1 step

ECH16R 10

ECH16R 26/65

ECH16R 15

Single

Package

Unit

Model No.

CHA16-024

CHA16-030

{Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167°F (75_C).

Electric

Heater

Model No.

& Net Weight

ECH16R-5

(34H46)

9 lbs. (4 kg)

ECH16R-7

(34H47)

5 lbs. (2 kg)

ECH16R-10

(34H48)

5 lbs. (2 kg)

ECH16R-15

(34H48)

18 lbs. (8 kg)

ECH16R-5

(34H46)

9 lbs. (4 kg)

ECH16R-7

(34H47)

5 lbs. (2 kg)

ECH16R-10

(34H48)

5 lbs. (2 kg)

ECH16R-15

(34H48)

18 lbs. (8 kg)

No. of

Steps &

Phase

1 ste

1 phase

1 ste

1 phase

Heater Only

Volts

Input

208 23 3.7 12,600 26

220 24 4.2 14,300

230 25 4.6 15,700

240 26 5.0 17,100 29

208 32 5.3 18,100 35

220 34 5.9 20,100

230 35 6.4 21,800

240 37 7.0 23,900

208 46 7.5 25,600

220 48 8.4 28,700

230 50 9.2 34,100

240 53 10.0 34,100 55

208 68 11.3 38,600 71

220 72 12.6 43,000 75

230 75 13.8 47,100

240 79 15.0 51,200 81

208 23 3.7 12,600 27

220 24 4.2 14,300

230 25 4.6 15,700

240 26 5.0 17,100 30

208 32 5.3 18,100 36

220 34 5.9 20,100

230 35 6.4 21,800

240 37 7.0 23,900 41

208 46 7.5 25,600 49

220 48 8.4 28,700

230 50 9.2 31,400

240 53 10.0 34,100 56

208 68 11.3 38,600 72

220 72 12.6 43,000 76

230 75 13.8 47,100 79

240 79 15.0 51,200 82

{Minimum

Circuit

Ampacity

Electric

Heat

Input

Electric

Heat Btuh

Input

Optional Single Point Power Source Boxes

Heater

SubĆFuse

Box

ECH16R-26/41-

(34H26)

ECH16R-26/65-

(34H25)

ECH16R-26/65-

(34H24)

- - - -

ECH16R-26/41-

(34H26)

ECH16R-26/65-

(34H25)

ECH16R-26/65-

(34H24)

Unit

SubĆFuse

Box

ECH16-261

(31H10)

ECH16-311

(31H11)

Total Unit &

Electric Heat

{Minimum Circuit

Ampacity

Page 31

TABLE 5 CHA16-036

4 lbs. (2 kg)

(31H26)

5 lbs. (2 kg)

(31H25)

5 lbs. (

1 step

)

ECH16Ć411

5 lbs. (2 kg)

(p )

(31H24)

( )

8 lbs. (8 kg)

18 lbs. (8 kg)

19 lbs. (9 kg)

ECH16Ć5

208/230v

()

(31H15)

ECH16 7

460v

ECH16Ć413

(31H36)

460v

(31H41)

17 lbs. (8 kg)

ECH16Ć413/513

575v

ECH16 10

1 step

(31H15)

(p )

460v

ECH16Ć413

(31H37)

460v

(31H42)

17 lbs. (8 kg)

ECH16Ć413/513

575v

ECH16 15

(31H15)

460v

ECH16Ć413

(31H38)

460v

(31H43)

17 lbs. (8 kg)

ECH16Ć413/513

575v

2 steps

ECH16 20

(p )

(31H15)

460v

ECH16Ć413

(31H39)

460v

(31H44)

1 step

20 lbs. (9 kg)

(p )

ECH16Ć413/513

575v

Single

Package

Unit

Model No.

CHA16Ć036

{Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167°F (75_C).

Electric

Heater

Model No.

& Net Weight

ECH16RĆ5

(31H46)

ECH16RĆ7

(31H47)

ECH16RĆ10

(31H48)

2 k

ECH16Ć15

(31H27)

ECH16Ć20

(31H28)

208/230v

(31H30)

17 lbs. (9 kg)

ECH16Ć7 208/230v

(31H31)

460v

(31H36)

575v

17 lbs. (8 kg)

ECH16Ć10

208/230v

(31H32)

460v

(31H37)

575v

17 lbs. (8 kg)

ECH16Ć15

208/230v

(31H33)

460v

(31H38)

575v

17 lbs. (8 kg)

ECH16Ć20

208/230v

(31H34)

460v

(31H39)

575v

20 lbs. (9 kg)

No. of

Steps &

Phase

1 step

(1 phase)

1 step

(3 phase)

2 steps

(3 phase)

1 step

(3 phase)

Volts Input

208 23 3.7 12,600 27 220 24 4.2 14,300 230 25 4.6 15,700 240 26 5.0 17,100 208 32 5.3 18,100 36 220 34 5.9 20,100 230 35 6.4 21,800 240 37 7.0 23,900 208 46 7.5 25,600 49 220 48 8.4 28,700 230 50 9.2 31,400 240 53 10.0 34,100 208 68 11.3 38,600 72 220 72 12.6 43,000 76 230 75 13.8 47,100 79 240 79 15.0 51,200 82 208 91 15.0 51,200 220 96 16.8 57,300 100 230 100 18.4 62,800 104 240 105 20.0 68,300 108 208 13 3.7 12,600 17 220 14 4.2 14,300 18 230 15 4.6 15,700 19 240 15 5.0 17,100 208 19 5.3 18,100 220 20 5.9 20,100 230 21 6.4 21,800 24 240 21 7.0 23,900 25 440 10 5.8 19,800 460 11 6.5 22,200 480 11 7.0 23,900 550 8 5.8 19,800 575 9 6.4 21,800 600 9 7.0 23,900 208 26 7.5 25,600 30 220 28 8.4 28,700 230 29 9.2 31,400 240 31 10.0 34,100 440 14 8.4 28,700 460 15 9.2 31,400 480 15 10.0 34,100 550 11 8.4 28,700 575 12 9.2 31,400 600 12 10.0 34,100 208 40 11.3 38,600 43 220 42 12.6 43,000 230 44 13.8 47,100 240 46 15.0 51,200 440 21 12.6 43,000 460 22 13.8 47,100 480 23 15.0 51,200 550 17 12.6 43,000 575 18 13.7 47,100 600 18 15.0 51,200 208 53 15.0 51,200 56 220 56 16.8 57,300 230 58 18.4 62,800 240 61 20.0 68,300 440 28 16.8 57,300 460 29 18.4 62,800 480 31 20.0 68,300 550 22 16.8 57,300 575 23 18.3 62,400 600 24 20.0 68,300

Heater Only

{Minimum

Circuit

Ampacity

Electric

Heat

Input

Electric

Heat

Btuh

Input

Optional Single Point Power Source Boxes

Heater

SubĆFuse

Box

ECH16RĆ

26/41Ć5

ECH16RĆ

26/65Ć7

ECH16RĆ

26/65Ć10

1H24

Ć Ć Ć Ć

Unit

SubĆFuse

Box

ECH16Ć411

(31H12)

ECH16Ć413

208/230v

1H1

460v

(31H18)

575v

(31H21)

ECH16Ć413

208/230v

460v

(31H18)

575v

(31H21)

ECH16Ć413

208/230v

460v

(31H18)

575v

(31H21)

ECH16Ć413

208/230v

1H1

460v

(31H18)

575v

(31H21)

Total Unit &

Electric Heat

{Minimum Circuit

Ampacity

28 29 30

38 39 41

52 54 56

19 22 23

12 13 13 10 11 11

32 33 34 16 17 18 14 14 15

46 47 49 23 24 25 19 20 21

59 62 64 30 32 33 25 26 27

Page 32

Single

Electric

Heater Only

Electric

5 lbs. (

5 lbs. (2 kg)

(31H25)

5 lbs. (

)

5 lbs. (2 kg)

(31H24)

1 step

ECH16Ć511

18 lbs. (8 kg)

(p )

()

19 lbs. (9 kg)

(

)

ECH16 7

(31H16)

(31H31)

460v

ECH16Ć413/513

()

460v

(31H41)

17 lbs. (8 kg)

ECH16Ć413/513

575v

ECH16 10

(31H16)

CHA16Ć048

460v

1 step

ECH16Ć413/513

(31H37)

(p )

460v

(31H42)

17 lbs. (8 kg)

ECH16Ć413/513

575v

ECH16 15

(31H16)

460v

ECH16Ć413/513

(31H38)

460v

(31H43)

17 lbs. (8 kg)

ECH16Ć413/513

575v

2 steps

ECH16 20

(p )

(31H16)

460v

ECH16Ć513/653

(31H39)

460v

(31H44)

1 step

20 lbs. (9 kg)

(p )

ECH16Ć413/513

575v

2 steps

ECH16 25

(p )

(31H16)

460v

ECH16Ć413/513

(31H40)

460v

(31H45)

1 step

20 lbs. (9 kg)

(p )

ECH16Ć413/513

575v

TABLE 6 CHA16-048

Single Electric

Package

Unit

Model No.

{Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167°F (75_C).

Heater

Model No.

& Net Weight

ECH16RĆ7

(31H47)

2 k

ECH16RĆ10

(31H48)

2 k

ECH16Ć15

(31H27)

ECH16Ć20

(31H28)

ECH16Ć25

(31H29)

l. k

ECH16Ć7 208/230v

460v

(31H36)

575v

17 lbs. (8 kg)

ECH16Ć10

208/230v

(31H32)

460v

(31H37)

575v

17 lbs. (8 kg)

ECH16Ć15

208/230v

(31H33)

460v

(31H38)

575v

17 lbs. (8 kg)

ECH16Ć20

208/230v

(31H34)

460v

(31H39)

575v

20 lbs. (9 kg)

ECH16Ć25

208/230v

(31H35)

460v

(31H40)

575v

20 lbs. (9 kg)

No. of

Steps &

Phase

1 step

(1 phase)

1 step

(3 phase)

2 steps

(3 phase)

1 step

(3 phase)

2 steps

(3 phase)

1 step

(3 phase)

Volts Input

208 32 5.3 18,100 37 220 34 5.9 20,100 230 35 6.4 21,800 240 37 7.0 23,900 208 46 7.5 25,600 50 220 48 8.4 28,700 230 50 9.2 31,400 240 53 10.0 34,100 208 68 11.3 38,600 73 220 72 12.6 43,000 230 75 13.8 47,100 240 79 15.0 51,200 208 91 15.0 51,200 96 220 96 16.8 57,300 101 230 100 18.4 62,800 240 105 20.0 68,300 109 208 11 3 18.8 64,200 118 220 120 21.0 71,700 125 230 125 23.0 78,500 130 240 131 25.0 85,300 136

208 19 5.3 18,100 220 20 5.9 20,100 230 21 6.4 21,800 240 21 7.0 23,900 440 10 5.8 19,800 460 11 6.5 22,200 480 11 7.0 23,900 550 8 5.8 19,800 575 9 6.4 21,800 600 9 7.0 23,900 208 27 7.5 25,600 31 220 28 8.4 28,700 230 29 9.2 31,400 240 31 10.0 34,100 440 14 8.4 28,700 460 15 9.2 31,400 480 15 10.0 34,100 550 11 8.4 28,700 575 12 9.2 31,400 600 12 10.0 34,100 208 40 11.3 38,600 44 220 42 12.6 43,000 230 44 13.8 47,100 240 46 15.0 51,200 440 21 12.6 43,000 460 22 13.8 47,100 480 23 15.0 51,200 550 17 12.6 43,000 575 18 13.7 46,800 600 18 15.0 51,200 208 53 15.0 51,200 57 220 56 16.8 57,300 230 58 18.4 62,800 240 61 20.0 68,300 440 28 16.8 57,300 460 29 18.4 62,800 480 31 20.0 68,300 550 22 16.8 57,300 575 23 18.3 62,400 600 24 20.0 68,300 208 66 18.8 64,200 70 220 69 21.0 71,700 230 72 22.9 78,100 240 76 25.0 85,300 440 35 21.0 71,700 460 36 22.9 78,100 480 38 25.0 85,300 550 28 21.1 72,000 575 29 23.0 78,500 600 31 25.0 85,300

Heater Onl

{Minimum

Circuit

Ampacity

Electric Electric

Heat

Input

Heat Btuh

Input

Optional Single Point Power Source Boxes

Heater

SubĆFuse

Box

ECH16RĆ

26/65Ć7

1H2

ECH16RĆ

26/65Ć10

1H24

Ć Ć Ć Ć

ĆĆĆĆ

Ć Ć Ć Ć

Page 33

Unit

SubĆFuse

Box

ECH16Ć511

(31H13)

ECH16Ć513

208/230v

31H16

460v

(31H20)

575v

(31H21)

ECH16Ć513

208/230v

1H1

460v

(31H21)

575v

(31H21)

ECH16Ć513

208/230v

1H1

460v

(31H21)

575v

(31H21)

ECH16Ć513

208/230v

460v

(31H19)

575v

(31H21)

ECH16Ć513

208/230v

1H1

460v

(31H21)

575v

(31H21)

Total Unit &

Electric Heat

{Min. Cir. Amp.

39 40 42

53 55 57

77 80 83

105

24 25 25 26 12 13 13 10

11 11

33 34 35 16 17 18 14 14 15

47 49 50 23 24 25 19 20 21

60 63 65 30 32 33 25 26 27

74 77 80 37 39 40 30 32 33

Single

Electric

Heater Only

Electric

5 lb

)

(31H25)

5 lb

)

(31H24)

1 step

ECH16Ć651

18 lb

)

(1 phase)

(31H14)

19 lb

)

19 lb

)

208/230

(31H31)

(58L07)

(31H31)

460v

ECH16Ć513/653

(31H36)

460v

17 lb

)

ECH16Ć653

575v

208/230

(

)

(58L07)

(31H32)

CHA16Ć060

460v

1 step

ECH16Ć513/653

(31H37)

(3 phase)

460v

17 lb

)

ECH16Ć653

575v

208/230

(

)

(58L07)

(31H33)

460v

ECH16Ć513/653

(31H38)

460v

17 lb

)

ECH16Ć653

575v

2 steps

208/230

(31H34)

(3 phase)

(58L07)

(31H34)

460v

ECH16Ć513/653

(31H39)

460v

1 step

20 lb

)

(3 phase)

ECH16Ć653

575v

2 steps

208/230

(31H35)

(3 phase)

(58L07)

(31H35)

460v

ECH16Ć513/653

(31H40)

460v

1 step

20 lb

)

(3 phase)

ECH16Ć653

575v

TABLE 7 CHA16-060

Single Electric

Package

Unit

Model No.

{Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167°F (75_C).

Heater

Model No.

& Net Weight

ECH16RĆ7

(31H47)

s. (2 kg

ECH16RĆ10

(31H48)

s. (2 kg

ECH16Ć15

(31H27)

s. (8 kg

ECH16Ć20

(31H28)

s. (9 kg

ECH16Ć25

(31H29)

s. (9 kg

ECH16Ć7

460v

(31H36)

575v

(31H41)

s. (8 kg

ECH16Ć10

ECH16Ć15

ECH16Ć20

ECH16Ć25

31H32

460v

(31H37)

575v

(31H42)

s. (8 kg

31H33

460v

(31H38)

575v

(31H43)

s. (8 kg

460v

(31H39)

575v

(31H44)

s. (9 kg

460v

(31H40)

575v

(31H45)

s. (9 kg

No. of

Steps &

Phase

1 ste

(1 phase)

1 ste

(3 phase)

2 steps

(3 phase)

1 ste

(3 phase)

2 steps

(3 phase)

1 step

(3 phase)

Volts Input

208 32 5.3 18,100 220 34 5.9 20,100 230 35 6.4 21,800 240 37 7.0 23,900 208 46 7.5 25,600 220 48 8.4 28,700 230 50 9.2 31,400 240 53 10.0 34,100 208 68 11.3 38,600 75 220 72 12.6 43,000 230 75 13.8 47,100 240 79 15.0 51,200 208 91 15.0 51,200 97 220 96 16.8 57,300 230 100 18.4 62,800 240 105 20.0 68,300 111 208 113 18.8 64,200 120 220 120 21.0 71,700 126 230 125 23.0 78,500 132 240 131 25.0 85,300 137 208 19 5.3 18,100 220 20 5.9 20,100 230 21 6.4 21,800 240 21 7.0 23,900 440 10 5.8 19,800 460 11 6.5 22,200 480 11 7.0 23,900 550 8 5.8 19,800 575 9 6.4 21,800 600 9 7.0 23,900 208 27 7.5 25,600 220 28 8.4 28,700 230 29 9.2 31,400 240 31 10.0 34,100 440 14 8.4 28,700 460 15 9.2 31,400 480 15 10.0 34,100 550 11 8.4 28,700 575 12 9.2 31,400 600 12 10.0 34,100 208 40 11.3 38,600 220 42 12.6 43,000 230 44 13.8 47,100 240 46 15.0 51,200 440 21 12.6 43,000 460 22 13.8 47,100 480 23 15.0 51,200 550 17 12.6 43,000 575 18 13.7 46,800 600 18 15.0 51,200 208 53 15.0 51,200 220 56 16.8 57,300 230 58 18.4 62,800 240 61 20.0 68,300 440 28 16.8 57,300 460 29 18.4 62,800 480 31 20.0 68,300 550 22 16.8 57,300 575 23 18.3 62,400 600 24 20.0 68,300 208 66 18.8 64,200 220 69 21.0 71,700 230 72 22.9 78,100 240 76 25.0 85,300 440 35 21.0 71,700 460 36 22.9 78,100 480 38 25.0 85,300 550 28 21.1 72,000 575 29 23.0 78,500 600 31 25.0 85,300

Heater OnlyElectric Electric

{Minimum

Circuit

Ampacity

Heat

Input

Heat Btuh

Input

Optional Single Point Power Source Boxes

Heater

SubĆFuse

Box

ECH16RĆ

26/65Ć7

ECH16RĆ

26/65Ć10

ECH16Ć651

Ć Ć Ć Ć

ECH16Ć653

ECH16Ć513/653

ECH16Ć653

ECH16Ć513/653

ECH16Ć653

Ć Ć Ć Ć

ECH16Ć513/653

ECH16Ć653

ECH16Ć513/653

ECH16Ć653

ECH16Ć513/653

ECH16Ć653

Page 34

Unit

SubĆFuse

Box

(31H14)

208/230v

460v

(31H19)

575v

(31H23)

208/230v

460v

(31H19)

575v

(31H23)

208/230v

460v

(31H19)

575v

(31H23)

208/230v

460v

(31H19)

575v

(31H23)

208/230v

460v

(31H19)

575v

(31H23)

Total Unit &

Electric Heat

{Min. Cir. Amp.

39 40 42 43 52 55 57 59

79 82 85

102 107

25 26 27 28 13 14 14 12 12 12 33 35 36 37 18 18 19 15 15 16 46 48 50 52 24 25 26 20 21 22 59 62 65 67 31 33 34 26 27 28 72 76 79 82 38 40 41 31 33 34

TABLE 8 CHP16-024/030/036

(

)

(

)

4 lbs. (2 kg)

(31H26)

(

)

(

)

5 lbs. (2 kg)

(31H25)

CHP16Ć024

1 step

ECH16 261

(

)

(

)

5 lbs. (2 kg)

(31H24)

(

)

18 lbs. (8 kg)

(

)

(

)

4 lbs. (2 kg)

(31H26)

(

)

(

)

5 lbs. (2 kg)

(31H25)

CHP16Ć030

1 step

ECH16 311

(

)

(

)

5 lbs. (2 kg)

(31H24)

(

)

18 lbs. (8 kg)

(

)

4 lbs. (2 kg)

(31H26)

(

)

5 lbs. (2 kg)

(31H25)

CHP16-036

(

1 step

(

)

ECH16Ć411

5 lbs. (2 kg)

(31H24)

(

18 lbs. (8 kg)

(

19 lbs. (9 kg)

Single

Package

Unit

Model No.

{Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167°F (75_C).

Electric

Heater

Model No.

& Net Weight

ECH16RĆ5

31H46

4 lbs. (2 k

ECH16RĆ7

31H47

5 lbs. (2 k

ECH16RĆ10

31H48

5 lbs. (2 k

ECH16Ć15

31H27

18 lbs. (8 k

ECH16RĆ5

31H46

4 lbs. (2 k

ECH16RĆ7

31H47

5 lbs. (2 k

ECH16RĆ10

31H48

5 lbs. (2 k

ECH16Ć15

31H27

18 lbs. (8 k

ECH16RĆ5

(31H46)

4 lbs.

2 k

ECH16RĆ7

(31H47)

5 lbs.

2 k

ECH16RĆ10

(31H48)

5 lbs.

2 k

ECH16Ć15

(31H27)

18 lbs.

8 k

ECH16Ć20

(31H28)

19 lbs.

9 k

No. of

Steps &

Phase

1 step

(1 phase)

1 step

(1 phase)

1 step

(1 phase)

Volts Input

208 23 3.8 12,800 220 24 4.2 14,300 230 25 4.6 15,700 240 26 5.0 17,100 208 32 5.3 17,900 220 34 5.9 20,100 230 35 6.4 21,900 240 37 7.0 23,900 208 46 7.5 25,600 220 48 8.4 28,700 230 50 9.2 31,300 240 53 10.0 34,100 208 68 11.3 38,400 84 220 72 12.6 43,000 230 75 13.8 47,100 240 79 15.0 51,200 94 208 23 3.8 12,800 220 24 4.2 14,300 230 25 4.6 15,700 240 26 5.0 17,100 208 32 5.3 17,900 220 34 5.9 20,100 230 35 6.4 21,900 240 37 7.0 23,900 208 46 7.5 25,600 220 48 8.4 28,700 230 50 9.2 31,300 240 53 10.0 34,100 208 68 11.3 38,400 89 220 72 12.6 43,000 230 75 13.8 47,000 240 79 15.0 51,200 99 208 23 3.8 12,800 50 220 24 4.2 14,300 230 25 4.6 15,700 240 26 5.0 17,100 208 32 5.3 18,000 58 220 34 5.9 20,000 230 35 6.4 22,000 240 37 7.0 23,900 208 46 7.5 25,600 72 220 48 8.4 28,700 230 50 9.2 31,300 240 53 10.0 34,100 208 68 11.3 38,500 95 220 72 12.6 43,000 98 230 75 13.8 47,000 102 240 79 15.0 51,200 208 91 15.0 51,200 220 96 16.8 57,300 122 230 100 18.4 62,700 127 240 105 20.0 68,200 131

Heater Only

{Minimum

Circuit

Ampacity

Electric

Heat

Input

Electric

Heat Btuh

Input

Optional Single Point Power Source Boxes

Heater

SubĆFuse

Box

ECH16RĆ

26/41Ć5

31H26

ECH16RĆ

26/65Ć7

31H25

ECH16RĆ

26/65Ć10

31H24

Ć Ć Ć Ć

ECH16RĆ

26/41Ć5

31H26

ECH16RĆ

26/65Ć7

31H25

ECH16RĆ

26/65Ć10

31H24

Ć Ć Ć Ć

ECH16RĆ

26/41Ć5

31H26

ECH16RĆ

26/65Ć7

31H25

ECH16RĆ

26/65Ć10

31H24

Ć Ć Ć Ć

Unit

SubĆFuse

Box

ECH16Ć261

(31H10)

ECH16Ć311

(31H11)

ECH16Ć411

(31H12)

Total Unit &

Electric Heat

{Minimum Circuit

Ampacity

39 40 41 42 48 50 51 52 61 64 66 68

88 91

43 44 45 47 52 54 56 57 66 69 71 73

92 95

51 52 53

60 62 63

74 77 79

105 117

Page 35

TABLE 9 CHP16-048/060

Single

Electric

Heater Only

Electric

5 lbs. (2 kg)

(31H25)

5 lbs. (2 kg)

(31H24)

CHP16Ć048

1 step

ECH16Ć511

18 lbs. (8 kg)

19 lbs. (9 kg)

5 lbs. (2 kg)

(31H25)

5 lbs. (2 kg)

(31H24)

CHP16Ć060

1 step

ECH16Ć651

18 lbs. (8 kg)

19 lbs. (9 kg)

Single Electric

Package

Unit

Model No.

{Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167°F (75_C).

Heater

Model No.

& Net Weight

ECH16RĆ7

(31H47)

5 lbs. (2 kg)

ECH16RĆ10

(31H48)

5 lbs. (2 kg)

ECH16Ć15

(31H27)

18 lbs. (8 kg)

ECH16Ć20

(31H28)

19 lbs. (9 kg)

ECH16Ć25

(31H29)

19 lbs. (9 kg)

ECH16RĆ7

(31H47)

5 lbs. (2 kg)

ECH16RĆ10

(31H48)

5 lbs. (2 kg)

ECH16Ć15

(31H27)

18 lbs. (8 kg)

ECH16Ć20

(31H28)

19 lbs. (9 kg)

ECH16Ć25

(31H29)

19 lbs. (9 kg)

o. o

Steps &

Phase

1 step

(1 phase)

1 ste

(1 phase)

Volts Input

208 32 5.3 18,000 66

220 34 5.9 20,000

230 35 6.4 22,000

240 37 7.0 23,900

208 46 7.5 25,600 79

220 48 8.4 28,700

230 50 9.2 31,300

240 53 10.0 34,100

208 68 11.3 38,500 102

220 72 12.6 43,000

230 75 13.8 47,000

240 79 15.0 51,200 11 2

208 91 15.0 51,200 124

220 96 16.8 57,300

230 100 18.4 62,700

240 105 20.0 68,200 138

208 113 18.8 64,200 147

220 120 21.0 71,700 153

230 125 23.0 78,500 159

240 131 25.0 85,300 164

208 32 5.3 18,000 70

220 34 5.9 20,000

230 35 6.4 22,000

240 37 7.0 23,900

208 46 7.5 25,600 84

220 48 8.4 28,700

230 50 9.2 31,300

240 53 10.0 34,100

208 68 11.3 38,500 106

220 72 12.6 43,000

230 75 13.8 47,000

240 79 15.0 51,200 11 7

208 91 15.0 51,200 129

220 96 16.8 57,300

230 100 18.4 62,700

240 105 20.0 68,200 143

208 113 18.8 64,100 151

220 120 21.0 71,700 158

230 125 23.0 78,300 163

240 131 25.0 85,300 169

Heater OnlyElectric Electric

{Minimum

Circuit

Ampacity

Heat

Input

Heat Btuh

Input

Optional Single Point Power Source Boxes

Heater

SubĆFuse

Box

ECH16RĆ

26/65Ć7

(31H25)

ECH16RĆ

26/65Ć10

(31H24)

Ć Ć Ć Ć

ECH16RĆ

26/65Ć7

(31H25)

ECH16RĆ

26/65Ć10

(31H24)

Ć Ć Ć Ć

Unit

SubĆFuse

Box

ECH16Ć511

(31H13)

ECH16Ć651

(31H14)

Total Unit &

Electric Heat

{Min. Cir. Amp.

106

109

129

134

110

114

134

139

Page 36

TABLE 10 CHP16-036

Single

Electric

Heater Only

Electric

208/230v

(

17 lbs. (8 kg)

()

208/230v

460v

(

17 lbs. (8 kg)

ECH16Ć413

(3 p

)

(3 phase)

208/230v

()

460v

CHP16Ć036

20 lbs. (9 kg)

ECH16Ć413

208/230v

()

460v

(

20 lbs. (9 kg)

ECH16Ć413

2 steps

208/230v

()

460v

(

20 lbs. (9 kg)

(3 p

)

ECH16Ć413

(3 phase)

Single Electric

Package

Unit

Model No.

{Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167°F (75_C).

Heater

Model No.

& Net Weight

ECH16Ć5 208/230v

(31H30)

17 lbs.

8 k

ECH16Ć7 208/230v

(31H31)

460v

(31H36)

17 lbs.

8 k

ECH16Ć10

208/230v

(31H32)

460v

(31H37)

20 lbs. (9 k

ECH16Ć15

208/230v

(31H33)

460v

(31H38)

20 lbs.

9 k

ECH16Ć20

208/230v

(31H34)

460v

(31H39)

20 lbs.

9 k

o. o

Steps &

Phase

1 step

hase

2 steps

(3 phase)

1 step

hase

Volts Input

208 13 3.8 12,800 33

220 14 4.2 14,300 34

230 15 4.6 15,700 34

240 15 5.0 17,100

208 19 5.3 18,000

220 20 5.9 20,000

230 21 6.4 22,000 40

240 21 7.0 23,900 41

440 10 5.8 19,800

460 11 6.5 22,200

480 11 7.0 23,900

208 27 7.5 25,600 46

220 28 8.4 28,700

230 29 9.2 31,400

240 31 10.0 34,100

440 14 8.4 28,700

460 15 9.2 31,300

480 15 10.0 34,100

208 40 11.3 38,500 59

220 42 12.6 43,000

230 44 13.8 47,000

240 46 15.0 51,200

440 21 12.6 43,000

460 22 13.8 47,100

480 23 15.0 51,200

208 53 15.0 51,300 72

220 56 16.8 57,300

230 58 18.4 62,700

240 61 20.0 68,200

440 28 16.8 57,500

460 29 18.4 62,800

480 31 20.0 68,200

Heater OnlyElectric Electric

{Minimum

Circuit

Ampacity

Heat

Input

Heat Btuh

Input

Optional Single Point Power Source Boxes

Heater

SubĆFuse

Box

Ć Ć Ć Ć

Unit

SubĆFuse

Box

ECH16Ć413

208/230v

(31H15)

460v

(31H18)

ECH16Ć413

208/230v

(31H15)

460v

(31H18)

ECH16Ć413

208/230v

(31H15)

460v

(31H18)

ECH16Ć413

208/230v

(31H15)

460v

(31H18)

Total Unit &

Electric Heat

{Min. Cir. Amp.

Page 37

Single

Electric

Heater Only

Electric

ECH16Ć7

ECH16Ć513

208/230v

()

460

(

)

(31H36)

ECH16Ć413/513

(g)

460v

ECH16Ć10

ECH16Ć513

208/230v

()

460

(

)

(3 ph

)

(31H37)

ECH16Ć513/653

(g)

460v

ECH16Ć15

ECH16Ć513

208/230v

()

CHP16 048

460

(

)

(31H38)

ECH16Ć413/513

(g)

460v

ECH16Ć20

2 steps

ECH16Ć513

208/230v

(p )

()

460

(

)

(31H39)

ECH16Ć513/653

(g)

(3 ph

)

460v

ECH16Ć25

2 steps

ECH16Ć513

208/230v

(p )

()

460

(

)

(31H40)

ECH16Ć413/513

(g)

(3 ph

)

460v

ECH16Ć7

ECH16Ć653

208/230v

()

460

(

)

(31H36)

ECH16Ć513/653

(g)

460v

ECH16Ć10

ECH16Ć653

208/230v

()

460

(

)

(3 ph

)

(31H37)

ECH16Ć513/653

(g)

460v

ECH16Ć15

ECH16Ć653

208/230v

()

CHP16 060

460

(

)

(31H38)

ECH16Ć513/653

(g)

460v

ECH16Ć20

2 steps

ECH16Ć653

208/230v

(p )

()

460

(

)

(31H39)

ECH16Ć513/653

(g)

(3 ph

)

460v

ECH16Ć25

2 steps

ECH16Ć653

208/230v

(p )

()

460

(

)

(31H40)

ECH16Ć513/653

(g)

(3 ph

)

460v

TABLE 11 CHP16-048/060

Single Electric

Package

Unit

Model No.

CHP16Ć048

CHP16Ć060

{Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167°F (75_C).

Heater

Model No.

& Net Weight

ECH16Ć7 208/230v

(31H31)

31H36

19 lbs. (9 kg)

ECH16Ć10

208/230v

(31H32)

31H37

19 lbs. (9 kg)

ECH16Ć15

208/230v

(31H33)

31H38

19 lbs. (9 kg)

ECH16Ć20

208/230v

(31H34)

31H39

22 lbs. (10 kg)

ECH16Ć25

208/230v

(31H35)

31H40

22 lbs. (10 kg)

ECH16Ć7 208/230v

(31H31)

31H36

19 lbs. (9 kg)

ECH16Ć10

208/230v

(31H32)

31H37

19 lbs. (9 kg)

ECH16Ć15

208/230v

(31H33)

31H38

19 lbs. (9 kg)

ECH16Ć20

208/230v

(31H34)

31H39

22 lbs. (10 kg)

ECH16Ć25

208/230v

(31H35)

31H40

22 lbs. (10 kg)

o. o

Steps &

Phase

1 step

ase

2 steps

(3 phase)

1 step

ase

2 steps

(3 phase)

1 step

ase

1 step

ase

2 steps

(3 phase)

1 step

ase

2 steps

(3 phase)

1 step

ase

Volts Input

Heater OnlyElectric Electric

{Minimum

Circuit

Ampacity

208 19 5.3 18,000 41 220 20 5.9 20,000 230 21 6.4 22,000 240 21 7.0 23,900 440 10 5.8 19,800 460 11 6.5 22,200 480 11 7.0 23,900 208 27 7.5 25,600 49 220 28 8.4 28,700 230 29 9.2 31,300 240 31 10.0 34,100 440 14 8.4 28,700 460 15 9.2 31,400 480 15 10.0 34,100 208 40 11.3 38,500 62 220 42 12.6 43,000 230 44 13.8 47,100 240 46 15.0 51,200 440 21 12.6 43,000 460 22 13.8 47,100 480 23 15.0 51,200 208 53 15.0 51,200 75 220 56 16.8 57,300 230 58 18.4 62,700 240 61 20.0 68,200 440 28 16.8 57,300 460 29 18.4 62,700 480 31 20.0 68,200 208 66 18.8 64,000 88 220 69 21.0 71,600 230 72 22.9 78,300 240 76 25.0 85,300 440 35 21.0 71,800 460 36 22.9 78,300 480 38 25.0 85,300

208 19 5.3 17,900 45 220 20 5.9 20,000 230 21 6.4 21,900 240 21 7.0 23,900 440 10 5.8 20,000 460 11 6.5 22,000 480 11 7.0 23,900 208 27 7.5 25,600 53 220 28 8.4 28,700 230 29 9.2 31,300 240 31 10.0 34,100 440 14 8.4 28,600 460 15 9.2 31,300 480 15 10.0 34,100 208 40 11.3 38,500 66 220 42 12.6 43,000 230 44 13.8 47,000 240 46 15.0 51,200 440 21 12.6 42,900 460 22 13.8 47,000 480 23 15.0 51,200 208 53 15.0 51,300 79 220 56 16.8 57,300 230 58 18.4 62,700 240 61 20.0 68,200 440 28 16.8 57,500 460 29 18.4 62,800 480 31 20.0 68,200 208 66 18.8 64,000 92 220 69 21.0 71,600 230 72 22.9 78,300 240 76 25.0 85,300 440 35 21.0 71,800 460 36 22.9 78,300 480 38 25.0 85,300

Heat

Input

Heat Btuh

Input

Optional Single Point Power Source Boxes

Heater

SubĆFuse

Box

Ć Ć Ć Ć

Page 38

Unit

SubĆFuse

Box

ECH16Ć513

(31H16)

460v

(31H21)

ECH16Ć513

(31H16)

460v

(31H19)

ECH16Ć513

(31H16)

460v

(31H21)

ECH16Ć513

(31H16)

460v

(31H19)

ECH16Ć513

(31H16)

460v

(31H21)

ECH16Ć653

(58L07)

460v

(31H19)

ECH16Ć653

(58L07)

460v

(31H19)

ECH16Ć653

(58L07)

460v

(31H19)

ECH16Ć653

(58L07)

460v

(31H19)

ECH16Ć653

(58L07)

460v

(31H19)

Total Unit &

Electric Heat

{Min. Cir. Amp.

42 43 44 21 21 22

50 52 53 25 26 26

64 66 68 32 33 34

78 80 83 39 40 42

92 95 98 46 47 49

46 47 48 23 23 24

54 56 57 27 28 28

68 70 72 34 35 36

82 84 87 41 42 43

96 99

102

48 49 51

TABLE 12 CHP20-024/30

(g)

()

(g)

()

CHP20Ć024

1 step

ECH16 261

(g)

()

(g)

()

(g)

()

CHP20Ć030

1 step

ECH16 311

(g)

()

(g)

Single

Package

Unit

Model No.

*Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167°F (75_C).

Electric

Heater

Model No.

& Net Weight

ECH16RĆ5

(31H46)

4 lbs. (2kg)

ECH16RĆ7

(31H47)

5 lbs. (2kg)

ECH16RĆ10

(31H48)

5 lbs. (2kg)

ECH16Ć15

(31H27)

18 lbs. (8kg)

ECH16RĆ5

(31H46)

4 lbs. (2kg)

ECH16RĆ7

(31H47)

5 lbs. (2kg)

ECH16RĆ10

(31H48)

5 lbs. (2kg)

ECH16Ć15

(31H27)

18 lbs. (8kg)

No. of

Steps &

Phase

1 step

(1 phase)

1 step

(1 phase)

Heater Only Volts Input

208 23 3.8 12,800 42

220 24 4.2 14,300

230 25 4.6 15,700

240 26 5.0 17,100

208 32 5.3 17,900 51

220 34 5.9 20,100

230 35 6.4 21,900

240 37 7.0 23,900

208 46 7.5 25,600

220 48 8.4 28,700

230 50 9.2 31,300

240 53 10.0 34,100

208 68 11.3 38,400 87

220 72 12.6 43,000

230 75 13.8 47,000

240 79 15.0 51,200 97

208 23 3.8 12,800 44

220 24 4.2 14,300

230 25 4.6 15,700

240 26 5.0 17,100

208 32 5.3 17,900 53

220 34 5.9 20,100

230 35 6.4 21,900

240 37 7.0 23,900

208 46 7.5 25,600

220 48 8.4 28,700

230 50 9.2 31,300

240 53 10.0 34,100

208 68 11.3 38,400 90

220 72 12.6 43,000

230 75 13.8 47,000

240 79 15.0 51,200 100

*Minimum

Circuit

Ampacity

Electric

Heat

Input

Electric

Heat Btuh Input

Optional Single Point Power Source Boxes

Heater

SubĆFuse

Box

ECH16RĆ

26/41Ć5

(31H26)

ECH16RĆ

26/65Ć7

(31H25)

ECH16RĆ

26/65Ć10

(31H24)

Ć Ć Ć Ć

ECH16RĆ

26/41Ć5

(31H26)

ECH16RĆ

26/65Ć7

(31H25)

ECH16RĆ

26/65Ć10

(31H24)

Ć Ć Ć Ć

Unit

SubĆFuse

Box

ECH16Ć261

(31H10)

ECH16Ć311

(31H11)

*Minimum Circuit

Total Unit &

Electric Heat

Ampacity

Page 39

Singl

Electri

Heat

Electri

4 lbs. (2kg)

(31H26)

5 lbs. (2kg)

(31H25)

CHP20Ć036

1 step

ECH16Ć411

1 phase

5 lbs. (2kg)

(1 phase)

(31H24)

(31H12)

18 lbs. (8kg)

19 lbs. (9kg)

ECH16Ć5

208/230v

ECH16Ć413

()

(31H15)

ECH16 7

(31H15)

460

(

)

(31H36)

ECH16Ć413

(g)

460v

ECH16 10

(3 ph

)

(31H15)

460

(

)

CHP20Ć036

(31H37)

ECH16Ć413

3 phase

(g)

460v

ECH16 15

(31H15)

460

(

)

(31H38)

ECH16Ć413

(g)

460v

ECH16 20

2 steps

(3 phase)

(31H15)

460

(

)

(31H39)

ECH16Ć413

(g)

(3 ph

)

460v

5 lb

(2kg)

(31H25)

5 lb

(2kg)

(31H24)

CHP20Ć042

1 step

ECH16Ć511

18 lb

(8kg)

(1 phase)

(31H13)

19 lb

(9kg)

19 lb

(9kg)

TABLE 13 CHP20-036/042

Package

Unit

Model No.

CHP20Ć036

1 phase

CHP20Ć036

3 phase

*Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167°F (75_C).

& Net Weight

22 lbs. (10kg)

Heater

Model No.

ECH16RĆ5

(31H46)

ECH16RĆ7

(31H47)

ECH16RĆ10

(31H48)

ECH16Ć15

(31H27)

ECH16Ć20

(31H28)

208/230v

(31H30)

19 lbs. (9kg)

ECH16Ć7 208/230v

(31H31)

31H36

19 lbs. (9kg)

ECH16Ć10

208/230v

(31H32)

31H37

19 lbs. (9kg)

ECH16Ć15

208/230v

(31H33)

31H38

19 lbs. (9kg)

ECH16Ć20

208/230v

(31H34)

31H39

ECH16RĆ7

(31H47)

ECH16RĆ10

(31H48)

ECH16Ć15

(31H27)

ECH16Ć20

(31H28)

ECH16Ć25

(31H29)

No. of

Steps &

Phase

1 ste

(1 phase)

1 step

ase

2 steps

(3 phase)

1 step

ase

1 ste

(1 phase)

Volts Input

208 23 3.8 12,800 220 24 4.2 14,300 230 25 4.6 15,700 240 26 5.0 17,100 208 32 5.3 18,000 220 34 5.9 20,000 230 35 6.4 22,000 240 37 7.0 23,900 208 46 7.5 25,600 220 48 8.4 28,700 230 50 9.2 31,300 240 53 10.0 34,100 208 68 11.3 38,500 220 72 12.6 43,000 230 75 13.8 47,100 240 79 15.0 51,200 208 91 15.0 51,200 220 96 16.8 57,300 230 100 18.4 62,700 240 105 20.0 68,200 208 13 3.7 12,800 220 14 4.2 14,300 230 15 4.6 15,600 240 15 5.0 17,100 208 19 5.3 17,900 220 20 5.9 20,000 230 21 6.4 21,900 240 21 7.0 23,900 440 10 5.9 20,000 460 11 6.5 22,200 480 11 7.0 23,900 208 26 7.5 25,600 220 28 8.4 28,600 230 29 9.2 31,300 240 31 10.0 34,100 440 14 8.4 28,700 460 15 9.2 31,400 480 15 10.0 34,100 208 40 11.3 38,500 220 42 12.6 43,000 230 44 13.8 47,000 240 46 15.0 51,200 440 21 12.6 42,900 460 22 13.8 47,000 480 23 15.0 51,200 208 53 15.0 51,300 220 56 16.8 57,300 230 58 18.4 62,700 240 61 20.0 68,200 440 28 16.8 57,500 460 29 18.4 62,800 480 31 20.0 68,200 208 32 5.3 18,000 220 34 5.9 20,000 230 35 6.4 22,000 240 37 7.0 23,900 208 46 7.5 25,600 220 48 8.4 28,700 230 50 9.2 31,300 240 53 10.0 34,100 208 68 11.3 38,500 100 220 72 12.6 43,000 230 75 13.8 47,000 240 79 15.0 51,200 208 91 15.0 51,200 122 220 96 16.8 57,300 230 100 18.4 62,700 240 105 20.0 68,200 136 208 113 18.8 64,100 145 220 120 21.0 71,700 230 125 23.0 78,300 240 131 25.0 85,300 162

er Only

*Minimum

Circuit

Ampacity

Heat

Input

Heat Btuh Input

Page 40

Optional Single Point Power Source Boxes

Heater

SubĆFuse

Box

ECH16RĆ

26/41Ć5

ECH16RĆ

26/65Ć7

ECH16RĆ

26/65Ć10

Ć Ć Ć Ć

ECH16RĆ

26/65Ć7

ECH16RĆ

26/65Ć10

Ć Ć Ć Ć

Unit

SubĆFuse

Box

ECH16Ć411

(31H12)

ECH16Ć413

(31H15)

ECH16Ć413

208/230v

460v

(31H18)

ECH16Ć413

208/230v

460v

(31H18)

ECH16Ć413

208/230v

460v

(31H18)

ECH16Ć413

208/230v

460v

(31H18)

ECH16Ć511

(31H13)

Total Unit &

Electric Heat

*Minimum Circuit

Ampacity

47 49 50 51 56 58 60 61 70 72 75 77 92

96 100 103

115 120 125 129

30 31 32 32 36 37 38 38 19 20 20 43 45 46 48 23 24 25 57 59 61 63 30 31 32 70 73 75 78 37 38 40 63 65 67 68 77 80 82 84

103 107

110

127 132

151 157

TABLE 14 CHP20-048

(2kg)

(

)

5 lbs. (2kg)

(31H25)

(2kg)

(

)

5 lbs. (2kg)

(31H24)

CHP20 048

(8kg)

1 step

ECH16 511

18 lbs. (8kg)

(9kg)

19 lbs. (9kg)

(9kg)

19 lbs. (9kg)

ECH16Ć7

ECH16 513

460v

(31H36)

ECH16Ć413/513

460v

ECH16Ć10

ECH16 513

460v

(3 phase)

(31H37)

ECH16Ć413/513

460v

ECH16Ć15

ECH16 513

3 phase

460v

(31H38)

ECH16Ć413/513

460v

ECH16Ć20

2 steps

ECH16 513

460v

(31H39)

ECH16Ć413/513

(3 phase)

460v

ECH16Ć25

2 steps

ECH16 513

460v

(31H40)

ECH16Ć413/513

(3 phase)

460v

Single

Package

Unit

Model No.

CHP20Ć048

1 phase

Electric

Heater

Model No.

& Net Weight

ECH16RĆ7

(31H47)

5 lbs.

ECH16RĆ10

(31H48)

5 lbs.

ECH16Ć15

(31H27)

18 lbs.

ECH16Ć20

(31H28)

19 lbs.

ECH16Ć25

(31H29)

19 lbs.

No. of

Steps &

Phase

1 step

(1 phase)

Volts Input

208 32 5.3 18,000 68

220 34 5.9 20,000

230 35 6.4 22,000

240 37 7.0 23,900

208 46 7.5 25,600 81

220 48 8.4 28,700

230 50 9.2 31,300

240 53 10.0 34,100

208 68 11.3 38,500 104

220 72 12.6 43,000

230 75 13.8 47,000

240 79 15.0 51,200 11 4

208 91 15.0 51,200 127

220 96 16.8 57,300

230 100 18.4 62,700

240 105 20.0 68,200 141

208 113 18.8 64,100 149

220 120 21.0 71,700

230 125 23.0 78,300

240 131 25.0 85,300 167

Heater Only

*Minimum

Circuit

Ampacity

Electric

Heat

Input

Electric

Heat Btuh Input

Optional Single Point Power Source Boxes

Heater

SubĆFuse

Box

ECH16RĆ

26/65Ć7

31H25

ECH16RĆ

26/65Ć10

31H24

Ć Ć Ć Ć

Unit

SubĆFuse

Box

ECH16Ć511

(31H13)

Total Unit &

Electric Heat

*Minimum Circuit

Ampacity

108

111

132

136

156

161

CHP20Ć048

ECH16Ć7 208/230v

(31H31)

(31H36)

19 lbs. (9kg)

ECH16Ć10

208/230v

(31H32)

(31H37)

19 lbs. (9kg)

ECH16Ć15

208/230v

(31H33)

(31H38)

19 lbs. (9kg)

ECH16Ć20

208/230v

(31H34)

(31H39)

22 lbs. (10kg)

ECH16Ć25

208/230v

(31H35)

(31H40)

22 lbs. (10kg)

1 step

2 steps

(3 phase)

1 step

2 steps

(3 phase)

1 step

208 19 5.3 17,900 42

220 20 5.9 20,000

230 21 6.4 21,900

240 21 7.0 23,900 45

440 10 5.9 20,000

460 11 6.5 22,000

480 11 7.0 23,900

208 27 7.5 25,600 50

220 28 8.4 28,700

230 29 9.2 31,300

240 31 10.0 34,100 54

440 14 8.4 28,600

460 15 9.2 31,400

480 15 10.0 34,100

208 40 11.3 38,500 63

220 42 12.6 43,000

230 44 13.8 47,000

240 46 15.0 51,200 69

440 21 12.6 42,900

460 22 13.8 47,000

480 23 15.0 51,200

208 53 15.0 51,300 76

220 56 16.8 57,300

230 58 18.4 62,700

240 61 20.0 68,200 84

440 28 16.8 57,500

460 29 18.4 62,800

480 31 20.0 68,200

208 66 18.8 64,000 89

220 69 21.0 71,600

230 72 22.9 78,300

240 76 25.0 85,300 99

440 35 21.0 71,800

460 36 22.9 78,300

480 38 25.0 85,300

Ć Ć Ć Ć

ECH16Ć513

(31H16)

460v

(31H21)

ECH16Ć513

(31H16)

460v

(31H21)

ECH16Ć513

(31H16)

460v

(31H21)

ECH16Ć513

(31H16)

460v

(31H21)

ECH16Ć513

(31H16)

460v

(31H21)

*Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167°F (75_C).

Page 41

TABLE 15 CHP20-060

Single

Electric

Heater Only

Electric

(2kg)

(

)

5 lbs. (2kg)

(31H25)

(2kg)

(

)

5 lbs. (2kg)

(31H24)

CHP20 060

(8kg)

1 step

ECH16 651

18 lbs. (8kg)

(9kg)

19 lbs. (9kg)

(9kg)

19 lbs. (9kg)

ECH16Ć7

ECH16 653

460v

(31H36)

ECH16Ć653

460v

ECH16Ć10

ECH16 653

460v

(3 phase)

(31H37)

ECH16Ć653

460v

ECH16Ć15

ECH16 653

3 phase

460v

(31H38)

ECH16Ć653

460v

ECH16Ć20

2 steps

ECH16 653

460v

(31H39)

ECH16Ć653

(3 phase)

460v

ECH16Ć25

2 steps

ECH16 653

460v

(31H40)

ECH16Ć653

(3 phase)

460v

Package

Unit

Model No.

CHP20Ć060

1 phase

CHP20Ć060

*Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167°F (75_C).

Heater

Model No.

& Net Weight

ECH16RĆ7

(31H47)

5 lbs.

ECH16RĆ10

(31H48)

5 lbs.

ECH16Ć15

(31H27)

18 lbs.

ECH16Ć20

(31H28)

19 lbs.

ECH16Ć25

(31H29)

19 lbs.

ECH16Ć7 208/230v

(31H31)

(31H36)

19 lbs. (9kg)

ECH16Ć10

208/230v

(31H32)

(31H37)

19 lbs. (9kg)

ECH16Ć15

208/230v

(31H33)

(31H38)

19 lbs. (9kg)

ECH16Ć20

208/230v

(31H34)

(31H39)

22 lbs. (10kg)

ECH16Ć25

208/230v

(31H35)

(31H40)

22 lbs. (10kg)

No. of

Steps &

Phase

1 step

(1 phase)

1 step

2 steps

(3 phase)

1 step

2 steps

(3 phase)

1 step

Volts Input

208 32 5.3 18,000 75

220 34 5.9 20,000

230 35 6.4 22,000

240 37 7.0 23,900

208 46 7.5 25,600 89

220 48 8.4 28,700

230 50 9.2 31,300

240 53 10.0 34,100

208 68 11.3 38,500 111

220 72 12.6 43,000

230 75 13.8 47,000

240 79 15.0 51,200 122

208 91 15.0 51,200 134

220 96 16.8 57,300

230 100 18.4 62,700

240 105 20.0 68,200 148

208 113 18.8 64,100 156

220 120 21.0 71,700

230 125 23.0 78,300

240 131 25.0 85,300 174

208 19 5.3 17,900 47

220 20 5.9 20,000

230 21 6.4 21,900

240 21 7.0 23,900 50

440 10 5.9 20,000

460 11 6.5 22,000

480 11 7.0 23,900

208 27 7.5 25,600 55

220 28 8.4 28,700

230 29 9.2 31,400

240 31 10.0 34,100 59

440 14 8.4 28,600

460 15 9.2 31,300

480 15 10.0 34,100

208 40 11.3 38,500 68

220 42 12.6 43,000

230 44 13.8 47,000

240 46 15.0 51,200 74

440 21 12.6 42,900

460 22 13.8 47,000

480 23 15.0 51,200

208 53 15.0 51,300 81

220 56 16.8 57,300

230 58 18.4 62,800

240 61 20.0 68,200 89

440 28 16.8 57,500

460 29 18.4 62,700

480 31 20.0 68,200

208 66 18.8 64,000 94

220 69 21.0 71,600

230 72 22.9 78,300

240 76 25.0 85,300 104

440 35 21.0 71,800

460 36 22.9 78,300

480 38 25.0 85,300

*Minimum

Circuit

Ampacity

Heat

Input

Heat Btuh Input

Optional Single Point Power Source Boxes

Heater

SubĆFuse

Box

ECH16RĆ

26/65Ć7

31H25

ECH16RĆ 26/65Ć10

31H24

Ć Ć Ć Ć

Unit

SubĆFuse

Box

ECH16Ć651

(31H14)

ECH16Ć653

(58L07)

460v

(31H19)

ECH16Ć653

(58L07)

460v

(31H19)

ECH16Ć653

(58L07)

460v

(31H19)

ECH16Ć653

(58L07)

460v

(31H19)

ECH16Ć653

(58L07)

460v

(31H19)

Total Unit &

Electric Heat

*Min. Cir. Amp.

115

118

139

143

163

168

101

Page 42

IV-PLACEMENT AND INSTALLATION

Make sure that the unit is installed in accordance with the installation instructions and all applicable codes. See acĆ cessories section for conditions requiring use of the optional roof mounting frame (RMF16).

V-ELECTRICAL CONNECTIONS

A-Field Wiring

Unit and optional thermostat field wiring is shown in the unit diagram section of this manual.

B-Power Supply

Refer to startĆup directions and refer closely to the unit wirĆ ing diagram when servicing. Refer to unit nameplate for minimum circuit ampacity and maximum fuse size. 208 volt units are field wired with red wire connected to control transĆ former primary. 230 volt units are factory wired with orange wire connected to control transformer primary.

DANGER

All single phase units use single pole contactors. One leg of comĆ pressor, capacitor and condenser fan are connected to line voltage at all times.

Remove all power to disconnect before servicing.

Electrical shock resulting in death or injury may result if power is not disconnected.

VI-STARTĆUP - OPERATION A-Crankcase Heaters

Crankcase heaters must be energized for 24 hours before atĆ tempting to start compressors. Set thermostat levers so there is no demand to prevent compressor from cycling. Apply powĆ er to unit.

B-Preliminary Check

1- Make sure refrigerant lines do not rub against cabinet or

against each other.

2- Inspect all electrical wiring, both factory and field

installed, for loose connections.

3- Check voltage at the disconnect switch. Voltage must

be within range listed on unit nameplate. If not, consult power company and have voltage condition corrected before starting unit.

4- Recheck voltage with unit running. If power is not within

range listed on unit nameplate, stop unit and consult power company. Check amperage of unit. Refer to unit nameplate for correct running amps.

5- Make sure filter is in place before start-up.

VII-COOLING SYSTEM SERVICE CHECKS

WARNING

Refrigerant can be harmful if it is inhaled. Refrigerant must be used and recovered responsibly.

Failure to follow this warning may result in personal injury or death.

The charge should be checked during startup using the method outlined below.

A-Gauge Manifold Attachment

Service gauge ports are identified in figure NO TAG. Attach gauge manifold high pressure line to liquid line gauge port. Attach gauge manifold low pressure line to suction line gauge port.

B-Cooling Sart Up

1- Set thermostat system switch in Cool" position, fan switch

in On" or Auto" position and adjust room thermostat to a setting below room temperature.

2- Close unit disconnect switch.

3- Compressor will start and cycle on thermostat demand.

C-Three Phase Compressor Rotation

Three phase scroll compressors must be phased sequenĆ tially to ensure correct compressor rotation and operation.

At compressor startĆup, a rise in discharge and drop in sucĆ tion pressures indicates proper compressor phasing and operation. If discharge and suction pressures do not funcĆ tion normally, follow these steps:

1- Disconnect power to the compressor and the unit.

2- Reverse any two field power leads to the unit.

3- Reapply power to the compressor and unit.

Discharge and suction pressures should operate at their normal startĆup ranges.

NOTE - The compressor noise level will be significantly higher when phasing is incorrect and will not provide cooling when operating backwards.

D-Charging

It is not recommended that the system be charged below 60° F (15° C). If charging below 60° F (15° C) is required or if system is completely void of refrigerant, the recommended and most accurate method of charging is to weigh the refrigĆ erant into the unit according to the amount shown on the unit rating plate. If weighing facilities are not available or if unit is just low on charge, use the following procedure:

Charging must be done in cooling mode. Operate unit and alĆ low system pressures to stabilize before and after each adjustĆ ment. Make sure all outdoor air dampers are closed.

Page 43

APPROACH TEMPERATURE = LIQUID TEMPERATURE - AMBIENT TEMPERATURE.

If ambient temperature is above 60° F (15° C), read liquid line temperature. Approach temperature is the difference between liquid line temperature and ambient temperature.

CAUTION-Use the same thermometer for both temperature readings.

Approach temperature is shown in table 16. Refrigerant must be added to lower approach temperature. Remove reĆ frigerant from system to increase approach temperature.

TABLE 16

APPROACH TEMPERATURE

UNIT

CHP16-024 7°F + 1 (3.9°C + 0.5)

CHP16-030 9°F + 1 (5.0°C + 0.5)

CHP16-036 11°F + 1 (6.0°C + 0.5)

CHP16-048 9°F + 1 (5.0°C + 0.5)

CHP16-060 11°F + 1 (6.0°C + 0.5)

CHP20-024 7°F + 1 (3.9°C + 0.5)

CHP20-030 7°F + 1 (3.9°C + 0.5)

CHP20-036 10°F + 1 (5.6°C + 0.5)

CHP20-042 6°F + 1 (3.3°C + 0.5)

CHP20-048 7°F + 1 (3.9°C + 0.5)

CHP20-060 12°F + 1 (6.7°C + 0.5)

LIQUID TEMP. MINUS

AMBIENT TEMP.

If ambient temperature is less than 60° F (16° C), air flow must be restricted to achieve pressures in the 200-250 psig range. These higher pressures are necessary for checking charge. To accomplish this, block the outdoor coil from top to bottom evenly from both ends.

VIII-HEATING SYSTEM SERVICE CHECKS

A-Heating - Heat Pump

1- Set thermostat switch in Heat" position and blower

switch in On" or Auto" position. Set heating adjustment lever above room temperature. Close unit disconnect switch.

2- Compressor will cycle on demand from room thermoĆ

stat and outdoor coil fan will cycle with compressor. Blower will operate according to position of blower switch on thermostat.

3- A defrost control is used to prevent excessive outdoor

coil icing. As a defrost cycle is initiated, the reversing valve switches, inducing heat to outdoor coil. Outdoor fan stops during this process.

B-Heating - Optional Electric Heat

1- When heat requirements exceed heat pump capacity,

the thermostat automatically activates the optional electric heat through W2.

IX-INDOORā BLOWER

OPERATION / ADJUSTMENT

Unit is equipped with direct drive, multi-speed indoor blower. See unit wiring diagram for factory setting. Table 17 gives minimum blower speeds for CHP16 & 20 units equipped with optional electric heat.

A-Blower Operation

1- Blower operation is manually set at the thermostat

subbase fan switch. When fan switch is in On" posiĆ tion, blower operates continuously.

2- When fan switch is in Auto" position, blower will

cycle with demand. Blowers and entire unit will be off when system switch is in Off" position.

To Measure Discharge Static Pressure:

a-Measure tap locations (figure 19).

b-Punch a 1/4" diameter hole. Insert manometer hose

flush with the inside edge of hole or insulation. Seal around hole with PermaĆ gum. Connect the zero end

STATIC PRESSURE

TAP LOCATIONS

UNIT

of the manometer to the disĆ charge (supply) side of the system. Connect other end of manometer to the return duct as above.

c-With only the blower motor running, observe the maĆ

MANOMETER

FIGURE 19

nometer reading.

d-Seal around the hole when check is complete.

3- The CFM can be adjusted by changing the motor speed

taps. Follow the blower speed change instructions beĆ low.

B-Blower Operation Adjustment

208-230 Volt Units - Blower speed selection is accomĆ plished by changing the taps at the harness connector at the blower motor. See figure 20 and unit diagram.

460-575 Volt Units-Blower speed selection is accomĆ plished by changing the J38 blower speed jack in the return air section. See unit wiring diagram.

IMPORTANTĊTo prevent motor burnout, never connect more than one motor lead to any one connection. Black and blue motor taps must be connected together when operating on low or medium speeds. Tape unused motor leads separately.

Page 44

C-Minimum Blower Speed

024, 030, 036

042

048, 060

(With Electric Heat)

Refer to ECH16 installation instructions for minimum alĆ

lowable blower speed when electric heat is used.

TABLE 17

ELECTRIC HEAT ONLY (EMERGENCY HEAT)

CHP16 & 20 UNIT Min. Blower Speed

ALL UNITS High

208/240V Med. - High 460/575V Medium

208/240V High 460/575V Medium

OPTIONAL ELECTRIC HEAT

UNIT Min. Blower Speed

A-Lubrication

IMPORTANT

Always relubricate motors according to manufacĆ turer's lubrication instructions provided on each motor. If no instructions are provided, use the folĆ lowing as a guide:

1 - Supply Air Motor Bearings - Bearings are prelubriĆ

cated; no further lubrication is required for 10 years of normal operation. Thereafter, oil at oiling ports with a SAE 10W non detergent motor oil or suitable equivalent.

3 - Condenser Fan Motor Bearings - Bearings are preĆ

lubricated. For extended bearing life, lubricate each bearing through the oiling ports provided with a few drops of a good grade electric motor oil or SAE10 or SAE20 non-detergent motor oil every two years.

B-Filters

Filters should be checked monthly (or more frequently in seĆ vere use) and cleaned or replaced regularly. Take note of the "AIR FLOW DIRECTION" marking on the filter frame when re-installing.

BLOWER SPEED TAP SELECTION

208-230V UNITS

HARNESS CONNECTOR

RELEASE

DEPRESS TAB TO RELEASE WIRE CONNECTOR. SELECT CONNECTOR LOCATION FOR NEW SPEED. INSERT WIRE UNTIL IT CLICKS.

FIGURE 20

X-MAINTENANCE

CAUTION

Potential for personal injury.

Disconnect power to unit before performing any maintenance or service operation. Avoid contact with sharp metallic edges.

Can cause prsonal injury or death.

IMPORTANT

FIlters must be U.L.C certified or equivalent for use in Canada.

1 - Clean coil, if necessary.

2 - Check connecting lines and coil for oil leaks.

3 - Check condensate drain pan and line, if necessary.

C-Condenser Coil

1 - Clean and inspect condenser coil. (May be flushed with

a water hose.)

2 - Visually inspect connecting lines and coils for evidence

of oil leaks.

IMPORTANT

If owner complains of insufficient cooling, unit should be gauged and refrigerant charge checked. Refer to gauge manifold attachment, checking charge and charging sections in this inĆ structions.

D-Electrical

1 - Check all wiring for loose connections.

2 - Check for correct voltage at unit (unit operating).

3 - Check amp-draw on both condenser fan motor and

blower motor. Fan Motor Rating Plate ____ Actual ________ Indoor Blower Motor Rating Plate____ Actual____

Page 45

XI-ACCESSORIES

This section describes the application of most of the optional accessories which can be connected to the CHA/ CHP16/20.

1-RMF16 Mounting Frame

When installing a CHA/ CHP16/20 unit on a combusĆ tible surface for downflow disĆ charge applications, RMF16 roof mounting (figure 21) frame is required. Otherwise, the RMF16 is recommended but not required. The CHA/ CHP16/20, if not mounted on a flat (roof) surface, MUST be supported under all edges and under the middle of the unit to prevent sagging. The CHA/ CHP16 /20 MUST be mounted level within 1/16" per linear foot in any direction.

The assembled RMF16 mounting frame is shown in figure

21. Refer to the RMF16 installation instructions for details of proper assembly and mounting. The roof mounting frame MUST be squared to the roof before mounting. Plenum sysĆ tem MUST be installed before the unit is set on the mounting frame. Refer to the RMF16 installation instructions for propĆ er plenum construction.

Many types of roof framing or supports can be used to mount the CHA/CHP16/20 unit, depending upon different roof structures.

RMF16

MOUNTING FRAME

FIGURE 21

2-Economizers

a-REMD16 Downflow Economizer

REMD16M Downflow Economizer

The REMD16 and REMD16M economizers (figure 22) are designed for use with standard (downflow) CHA/ CHP16/20s. The economizer opens a set of dampers to allow 0 to 100 percent outdoor air to be used for cooling when outdoor humidity and temperature are acceptĆ able. Additional (2nd stage) cooling demand is directed to the compressor while the dampers remain open. If outdoor air becomes unacceptable, the outdoor air dampers close to a predetermined minimum position while the compressor cooling circuit cycles as needed.

Refer to the REMD16-41/65 Installation Instruction Manual for specific details regarding installation. Refer to the sequence of operation flowcharts (in back of this manual) for detailed operation of the economizer. The sequence of operation flowcharts also describe how the economizer interacts with the CHA/CHP16/20's and the control system being used.

3-EMDH16 Horizontal Economizer

EMDH16M Horizontal Economizer

The EMDH16 and EMDH16M economizers (figure 23) operate like the REMD16 and REMD16M except they are designed for CHA/CHP16/20 units requiring horiĆ zontal discharge and return air. Internal components and operation of the horizontal economizer are identiĆ cal to the downflow economizer.

Refer to the EMDH16-41/65 Installation Instruction Manual for specific details regarding installation. The physical location of controls in REMD16M and REMD16 economizers is shown in figure 22. The physical location of controls in EMDH16M and EMDH16 economizers is shown in figure 23.

4-Economizer Operation

a-Enthalpy Control: Setpoint Control

The key to economizer operation is the enthalpy conĆ trol. The enthalpy control senses total heat content in outside air (temperature plus humidity) and uses that information to control the amount of outside air brought into the system. When the outside air enthalpy is below the control setpoint, the control actuates a motor which in turn adjusts outdoor dampers to meet cooling deĆ mands of the building. When the heat content rises above control setpoint, the control de-activates and dampers close to preset minimum (not closed) posiĆ tion. Two types of adjustment may be made at the control. The first is the control setpoint. The setpoint deterĆ mines the temperature and humidity conditions at which the outdoor air dampers will open and close. The recommended setpoint is A." If the economizer is allowing air which is too warm or too humid into the system, the control may be changed to a lower setĆ point (B,C or D). Refer to enthalpy chart figure 24.

Page 46

ENTHALPY CONTROL

ACCESS COVER

REMOTE

MOUNTING BASE

REMD16M PARTS ARRANGEMENT

DAMPER MOTOR

ACCESS COVER

ENTHALPY CONTROL

REMD16 PARTS ARRANGEMENT

MIXED AIR

NOTE - Mixed air sensor is shown as it is factory installed in a REMD16M-41. REMD16M-65 is similar. Mixed air senĆ sor should be removed from econoĆ mizer and installed in supply air stream as shown in figure 26.

SENSOR

OUTDOOR AIR DAMPERS

MIXED AIR

SENSOR CONTROL

NOTE - Mixed air sensor and sensing bulb are shown as they are factory installed in a REMD16-41. REMD16-65 is simĆ ilar. Mixed air sensor should be removed from economizer and installed in unit blower compartĆ ment and sensing bulb should be installed in supply air stream as shown in figure 26.

DAMPER MOTOR

MIXED AIR

SENSING BULB

RETURN AIR DAMPERS

FIGURE 22

Page 47

OUTDOOR AIR DAMPERS

EMDH16M PARTS ARRANGEMENT

OUTDOOR DAMPER

HOOD

ENTHALPY SENSOR

RETURN AIR DAMPERS

RETURN DUCT

FLANGE

NOTE - Mixed air sensor is shown as it is factory installed in a EMDH16M-41. EMDH16M-65 is similar. Mixed air sensor should be removed from economizer and installed in supply air stream as shown in figure 26.

MIXED AIR SENSOR

DAMPER MOTOR

ENTHALPY CONTROL

on REMOTE

MOUNTING BASE

WIRING HARNESS

(connects to jackplug in

blower compartment)

EMDH16 PARTS ARRANGEMENT

ACCESS COVER

REMOVED

TRANSITION

FILTER

OUTDOOR AIR DAMPERS

OUTDOOR DAMPER

HOOD

ENTHALPY SENSOR

RETURN AIR DAMPERS

RETURN DUCT

FLANGE

MIXED AIR

SENSING BULB

NOTE - Mixed air sensor and sensing bulb are shown as they are factory installed in a EMDH16-41. EMDH16-65 is simĆ ilar. Mixed air sensor should be removed from economizer and installed in unit blower compartĆ ment and sensing bulb should be installed in supply air stream as shown in figure 26.

DAMPER MOTOR

MIXED AIR

SENSOR CONTROL

ENTHALPY CONTROL

FIGURE 23

ACCESS COVER

REMOVED

TRANSITION

WIRING HARNESS

(connects to jackplug

in blower compartment)

FILTER

Page 48

5-Economizers

a-Application

REMD16(M) and EMDH16(M) economizers can only be applied to CHA/CHP16/20 commercial units.

b-REMD16 Downflow Economizer

REMD16M Downflow Economizer

Two types of adjustment may be made at the control. The first is the control setpoint. The setpoint deterĆ mines the temperature and humidity conditions at which the outdoor air dampers will open and close. The recommended setpoint is A." If the economizer is allowing air which is too warm or too humid into the system, the control may be changed to a lower setĆ point (B,C or D). Refer to enthalpy chart figure 24.

The REMD16 and REMD16M economizers (figure 22) are designed for use with standard (downflow) CHP16s. The economizer opens a set of dampers to allow 0 to 100 percent outdoor air to be used for cooling when outĆ door humidity and temperature are acceptable. AddiĆ tional (2nd stage) cooling demand is directed to the compressor while the dampers remain open. If outdoor air becomes unacceptable, the outdoor air dampers close to a predetermined minimum position while the compressor cooling circuit cycles as needed.

Refer to the REMD16-41/65 Installation Instruction Manual for specific details regarding installation.

6-EMDH16 Horizontal Economizer

EMDH16M Horizontal Economizer

The EMDH16 and EMDH16M economizers (figure 23) operate like the REMD16 and REMD16M except they are designed for CHA/CHP16 units requiring horizonĆ tal discharge and return air. Internal components and operation of the horizontal economizer are identical to the downflow economizer.

Refer to the EMDH16-41/65 Installation Instruction Manual for specific details regarding installation.

The physical location of controls in REMD16M and REMD16 economizers is shown in figure 22. The physical location of controls in EMDH16M and EMDH16 economizers is shown in figure 23.

7-Economizer Operation

a-Enthalpy Control: Setpoint Control

ENTHALPY CHART

C D

CONTROL

POINT 50% RH

°F °C

CHART CURVE

°°

FIGURE 24

Example:

If the enthalpy control is set at setpoint A" as shown in figure 24, the following situation could occur. A cooling

demand when the outside air is at 75° and 20 percent huĆ

midity would drive the economizer outdoor air dampers open to utilize outdoor air for cooling. The compressor cooling circuit would be disabled. However, if the outĆ

door air should change to 70°F (a drop in temperature)

and 70 percent humidity (a dramatic rise in humidity), the total heat content" of the outdoor air would rise above the enthalpy control setpoint and de-activate the dampĆ er motor to the preset minimum position. If cooling deĆ mand is still present when the total heat of the outside air rises above the control setpoint, cooling demand is routed from the economizer to the compressor cooling circuit.

Page 49

8-Minimum Positioner

The second type of adjustment which may be made at the control is the minimum position of the outdoor damper blades. Each economizer has a minimum poĆ sitioner switch (potentiometer) which allows the outĆ door dampers to be adjusted to a preset minimum position. This allows a preset amount of air exchange at all times during unit operation. When unit operation stops, the dampers drive fully closed. The potentiomĆ eter is located on the enthalpy control face (modulatĆ ing economizer) or on the damper motor (three posiĆ tion economizer).

9-Enthalpy Sensor

The enthalpy sensor is located on the outĆ side portion of the outĆ door damper blades (as shown in figure

25). The sensor moniĆ tors the total heat conĆ tent of the outdoor air (temperature plus huĆ midity) and sends the information to the enĆ thalpy control. The enthalpy control uses the information to deĆ termine if outdoor air can be used for cooling.

ENTHALPY SENSOR

ALL ECONOMIZERS

ENTHALPY

SENSOR

OUTDOOR

AIR DAMPERS

FIGURE 25

10-Mixed Air Sensor

The sensor measures the resultant temperature of the mixed air downstream of the evaporator coil. The mixed air temperature is used by the enthalpy control when outdoor dampers are open to help determine whether outdoor air dampers should close. ModulatĆ ing economizers are equipped with a single mixed air sensor. Three position economizers are equipped with a separate sensor (switch) and sensing bulb which are connected by a cap tube.

The mixed air sensor (bulb) is located in the supply air stream. The sensor (modulating economizer) or sensing bulb (three position economizer) fits through a factory supplied hole in the panel dividing the unit reĆ turn and supply air (see figure 26). The three position economizer sensor (switch) mounts to pre-drilled holes in the unit panel dividing return and supply air.

11-Night Relay

Optional night relay must be added to economizer when night setback functions are desired with electroĆ mechanical control systems. Kit includes a DPDT relay which is hard-wired to the economizer harness.

MIXED AIR SENSOR

CHP16 UNIT

SUPPLY

AIR

SENSOR HOLE

LOCATION

CONTROL HARNESS

FIGURE 26

12-Warm Up Kit

An optional warm up kit may be added to either REMD16 or EMDH16 economizer (except CHA/ CHP16/20 units using a Honeywell W7400 or T7300 Control System). The Warm Up Kit holds the dampers closed during night setback and morning warm up. When the first thermostat demand of the day is satisĆ fied, the warm up kit opens the outdoor dampers to minimum position. The warm up kit mounts to the CHA/CHP16/20 in the control mounting area of the blower compartment. The kit plugs into the unit wiring harness inline between the unit and the economizer.

13-Condenser Coil Guard Kit

Optional condenser coil guard kit is available for all units. The kit includes PVC coated steel wire coil guard which is field installed. OPTIONAL ACCESSORIES (see table of conĆ tents) show guard quantity per unit.

14-DF16 Downflow Filter Kit

Optional downflow filter kit may be added to any CHP16 unit not equipped with factory installed filter brackets. The kit provides a means for filtering (downflow) return air inside the cabinet. The kit includes rails which install in the blower compartment and allow the (one inch thick) filter (furnished) to slide in. Two kits are available. DF16-41 installs in -024,

-030, and -036 units and DF16-65 installs in -042, -048 and

-060 units.

15-Timed-Off Control Kit

Optional field installed timed-off controls prevent the CHA/ CHP16/20 compressors from short cycling. After a thermoĆ stat demand, automatic reset timed-off control keeps comĆ pressor off for 3-7 minutes.

NOTE - Some electronic thermostats have built in time delay. Field installed time delay is not needed on these applications.

16-OptionalĂCompressorĂMonitorā

Optional compressor monitor can be installed in all units to provide low ambient protection for the compressor. The monitor is a N.O. temperature switch located in the control box area. It is wired in series with the compressor contactor.

When ambient temperature drops below 40°F, the switch

opens and de-energizes the compressor contactor thereby protecting the compressor from low ambient operation.

Page 50

NOTE - COMPRESSOR MONITOR CANNOT BE USED WITH OPTIONAL LOW AMBIENT KIT. OPĆ TIONAL FIELD INSTALLED COMPRESSOR MONIĆ TOR MUST BE DISCONNECTED BEFORE ALLOWĆ ING LOW AMBIENT KIT TO BE USED.

17-Low Ambient Kit

The optional low ambient kit (figure 27) allows for mechanical cooling operation at low outdoor temperature.

Low ambient pressure switch is wired in series with the conĆ denser fan L1 lead. Refer to low ambient kit installation instrucĆ tion manual for detailed installation instructions.

DIFFERENCE (set by knob) = CUT-IN POINT (fixed) minus CUT-OUT POINT

LOW AMBIENT ADJUSTMENT

KNOB

SECURING

SCREW

ADJUSTMENT

KNOB

ROTATE COUNTERCLOCKWISE

FIXED

STOP

SET INDICATOR

AT 140 PSIG

TYPICAL INSTALLATION

LOW AMBIENT KIT

LOW AMBIENT

PRESSURE

SWITCH

HIGH PRESSURE

SWITCH

SHOCK

LOOP

DISCHARGE

LINE

LOSS OF CHARGE

SWITCH

VALV E

DEPRESSOR TEE

FIGURE 27

The low ambient pressure switch cycles the condenser fan while allowing normal compressor operation. This intermitĆ tent fan operation results in a high evaporating temperature which allows the system to operate without icing the evapoĆ rator coil and losing capacity.

Adjustment:

The low ambient pressure switch is adjustable but the adjustĆ ment knob does not adjust CUT-IN or CUT-OUT points. CUTIN point is fixed and cannot be adjusted. The scale on the switch measures the difference in pressure between preset CUT-IN and adjustable CUT-OUT points. Adjustment knob changes CUT-OUT point by adjusting the DIFFERENCE beĆ tween CUT-IN and CUT-OUT.

The low ambient pressure switch is factory set to CUT-IN at 285psig with a difference of 146psig (CUT-OUT at 140psig). Adjustment should not be needed. If adjustment is needed, adjust the switch as follows:

1- Loosen knob securing screw to allow knob stop to pass

over fixed stop on control (see figure 28).

LOW AMBIENT

CONTROL

LOW AMBIENT ADJUSTMENT DETAIL

FIGURE 28

To find CUT-OUT point, re-arrange the equation so that:

CUT-OUT = CUT-IN minus the DIFFERENCE.

2- Rotate the knob as needed to set the difference indicaĆ

tor at 145psig (1000kPa).

3- Tighten the securing screw after adjusting.

18-Roof Curb Power Kit

Optional Roof Curb Power kit allows line and low voltage power to be brought into unit from RMF16 roof mounting frame. Two 7/8" knockouts are provided along the long rails of each mounting frame. All components in Roof Curb PowĆ er kit are field assembled and field installed.

19-Transitions

Optional supply/return transitions (SRT16 AND SRTH16) are available for use with downflow CHA/CHP16/20s utilizĆ ing the optional RMF16 roof mounting frame. The transition must be installed in the RMF16 mounting frame before mounting the CHA/CHP16/20 to the frame. Refer to the manufacturer's instructions included with the transition for detailed installation procedures.

20-Supply and Return Diffusers

Optional flush mount diffuser/return FD9-65 and extended mount diffuser/return RTD9-65 are available for use with the CHP16. Refer to the manufacturer's instructions included with the transition for detailed installation procedures.

21-Filter Switch Kit

An air filter switch kit is available for use with SP11 and SSP11. The switch is activated by high negative pressure in the blower compartment caused by dirty air filters or other reĆ strictions. When high negative pressure causes the switch to close, power is routed from R" thermostat wire lead through the switch to the red FILTER" light in the status panel.

Page 51

XII-WIiring Diagrams and Operation Sequence

CHP16/20 P VOLTAGE

Page 52

CHP16/20 P VOLTAGE SEQUENCE OF OPERATION

Operation Sequence Cooling:

1- Line voltage energizes transformer T1. Transformer

T1 provides 24VAC power to all unit controls and therĆ mostat.

2- Latch relay K6 controls operation of reversing valve L1

during normal operartion (contacts K10-2 control reĆ versing valve during defrost). Latch relay K6 operates as follows:

a- 24VAC from Y1 cooling demand applied to K6 SET" coil closes K6-1 and switches K6-2 (contacts 6-8 close and 6-4open). Contacts 6 and 8 remains closed when power is removed.

b- 24VAC from W1 heating demand applied to K6 REĆ SET" coil opens K6-1 and switches K6-2 (contacts 6-8 open and 6-4 close). K6-1 and K6-2 remain in this posiĆ tion when power is removed.

3- Cooling demand energizes Y1 and G in the thermostat.

Y1 energizes K6 relay SET" coil. K6-1 and K6-2 immeĆ diately switch. G energizes indoor blower relay K3.

4- When K6-1 closes, reversing valve L1 is energized.

When K6-2 switches (contacts 6-8 close), contactor K1 is energized.

5- K1-1 closes to energize compressor and the condensĆ

er fan. CHP16-024/-030 models only (reciprocating compresĆ sor)-At compressor start up, terminal S is powered by start capacitor C7.

6- CHP16-024/030 only-When compressor nears full

speed potential relay K31 is energized and start capacĆ itor C7 is taken out of circuit. K31 remains energized during compressor operation. Run side of dual capaciĆ tor C12 remains in the circuit between terminals R ands S during all compressor operation.

7- K3-2 switches to energize the blower on high speed.

K3-1 switches to power the economizer (if equipped). Dampers open to minimum position.

Heating:

8- 1st. stage heating demand energizes W1 in the therĆ

mostat. W1 energizes transfer relay K8 and K6 relay RESET" coil. K6-1, K6-2 and K8-1 all switch immediĆ ately.

9- When K8-1 switches, indoor blower relay K3 is enerĆ

gized.

10-When K6-1 opens, reversing valve L1 is de-energized.

When K6-2 switches (terminals 6-8 open and 6-4 close), compressor contactor K1 and de-frost board CMC1 are energized.

11-K1-1 closes to energize the compressor and condensĆ

er fan. CHP16-024/030 only- As compressor gains speed, compressor terminal S is powered by start capacitor C7.

12-CHP16-024/030 only-At compressor start up, potential

relay K31 is energized and start capacitor C7 is taken out of circuit. K31 remains energized during compresĆ sor operation. Run side of dual capacitor C12 remains in the circuit between terminals R ands S during all compressor operation.

13-K3-2 switches to energize the blower on high speed.

K3-1 switches to power the economizer (if equipped). Dampers open to minimum position.

14-Additional heating demand W2 is directed to optional

electric heat (not shown).

Defrost Mode:

15-During heating operation, when outdoor coil temperaĆ

ture drops below 35ºF 4ºF, the defrost thermostat closes.

16-After 30, 60 or 90 minutes of heating demand (dependĆ

ing on how the conrtrol is pre-set) CMC1 checks for deĆ frost demand by closing a set of relay contacts conĆ nected to terminal OUT. Terminal OUT remains enĆ abled for 14  1 minutes. If defrost temperature therĆ mostat S6 is closed when terminal OUT is enabled, deĆ frost relay K4 and outdoor fan relay K10 are allowed to energize and defrost begins.

17-When K4 energizes, K4-1 opens and K4-2 and K4-3

close.

18-When K10 energizes, K10-1 and K10-2 immediatley

switch. 19-When K4-1 opens internal timer is reset to zero. 20-When K4-2 closes, W1 is shunted to W2 to energize

optional electric heat. 21-When K4-3 closes, defrost relay K4 and outdoor fan

relay K10 are latched in until defrost terminates. 22-When K10-1 opens, the outdoor fan is de-energized. 23-When K10-2 switches, reversing valve L1 is energized. 24-Defrost is terminated when relay K4 loses power. K4

can lose power two ways.

1) If defrost is not satisfied after 14 1 minutes, CMC1

(terminal OUT) internal relay contacts open, K4 is de-

energized and defrost is terminated.

2) If S46 opens before 14 minutes has elapsed, K4

and K10 are de-energized and defrost is terminated.

Page 53

CHP16/20 Y VOLTAGE

Page 54

CHP16/20 G VOLTAGE

Page 55

CHP16/20 Y and G VOLTAGE SEQUENCE OF OPERATION

Operation Sequence Cooling:

1- Line voltage energizes transformer T1. Transformer

T1 provides 24VAC power to all unit controls and therĆ mostat.

2- Latch relay K6 controls operation of reversing valve L1

during normal operartion (contacts K10-2 control reĆ versing valve during defrost). Latch relay K6 operates as follows:

a- 24VAC from Y1 cooling demand applied to K6 SET" coil closes K6-1 and switches K6-2 (contacts 6-8 close and 6-4 open). Contacts 6 and 8 remains closed when power is removed.

b- 24VAC from W1 heating demand applied to K6 REĆ SET" coil opens K6-1 and switches K6-2 (contacts 6-8 open and 6-4 close). K6-1 and K6-2 remain in this posiĆ tion when power is removed.

3- Cooling demand energizes Y1 and G in the thermostat.

Y1 energizes K6 relay SET" coil. K6-1 and K6-2 imĆ mediately switch. G energizes indoor blower relay K3.

4- When K6-1 closes, reversing valve L1 is energized.

When K6-2 switches (contacts 6-8 close), contactor K1 is energized.

5- K1-1 closes to energize compressor and the condensĆ

er fan.

6- K3-2 switches to energize the blower on high speed.

K3-1 switches to power the economizer (if equipped). Dampers open to minimum position.

Heating:

7- 1st. stage heating demand energizes W1 in the therĆ

mostat. W1 energizes transfer relay K8 and K6 relay RESET" coil. K6-1, K6-2 and K8-1 all switch immediĆ ately.

8- When K8-1 switches indoor blower relay K3 is enerĆ

gized.

9- When K6-1 opens, reversing valve L1 is de-energized.

When K6-2 switches (terminals 6-8 open and 6-4 close), compressor contactor K1 and de-frost board CMC1 are energized.

10-K1-1 closes to energize the compressor and condensĆ

er fan.

11-K3-2 switches to energize the blower on high speed.

K3-1 switches to power the economizer (if equipped). Dampers open to minimum position.

12-Additional heating demand W2 is directed to optional

electric heat (not shown).

Defrost Mode:

13-During heating operation, when outdoor coil temperaĆ

ture drops below 35ºF 4ºF, the defrost thermostat closes.

14-After 30, 60 or 90 minutes of heating demand (dependĆ

15-When K4 energizes, K4-1 opens and K4-2 and K4-3

close.

16-When K10 energizes, K10-1 and K10-2 immediatley

switch. 17-When K4-1 opens internal timer is reset to zero. 18-When K4-2 closes, W1 is shunted to W2 to energize

optional electric heat. 19-When K4-3 closes, defrost relay K4 and outdoor fan

relay K10 are latched in until defrost terminates. 20-When K10-1 opens, the outdoor fan is de-energized. 21-When K10-2 switches, reversing valve L1 is energized. 22-Defrost is terminated when relay K4 loses power. K4

can lose power two ways.

1) If defrost is not satisfied after 14 1 minutes, CMC1

(terminal OUT) internal relay contacts open, K4 is de-

energized and defrost is terminated.

2) If S46 opens before 14 minutes has elapsed, K4

and K10 are de-energized and defrost is terminated.

Page 56

CHA16 P VOLTAGE

SEQUENCE OF OPERATION Cooling:

1- Line voltage energizes transformer T1. Transformer T1 provides

24VAC power to all unit controls and thermostat.

2- Cooling demand energizes Y1 and G in the thermostat. Y1 energizes

compressor contactor K1 and G energizes indoor blower relay K3.

3- K1-1 closes to energize compressor and condenser fan.

4- K3-2 switches to energize blower on high speed. K3-1 switches to

power the economizer (if equipped). Dampers open to minimum posiĆ tion.

Heating:

5-Heating demand initiates at W1 in the thermostat and passes through to

ECH16.

See Electric Heat Sequence of 0peration.

Units equipped with reciprocating compressors:

6-As compressor gains speed, compressor terminal S is powered by start

capacitor C7. When compressor nears full speed potential relay K31 is

energized and the start capacitor is taken out of the circuit. K31 reĆ

mains energized during compressor operation.

Page 57

CHA16 Y VOLTAGE

SEQUENCE OF OPERATION Cooling:

1- Line voltage energizes transformer T1. Transformer T1 provides

24VAC power to all unit controls and thermostat.

2- Cooling demand energizes Y1 and G in the thermostat. Y1 energizes

compressor contactor K1 and G energizes indoor blower relay K3.

3- K1-1 closes to energize compressor and condenser fan.

4- K3-2 switches to energize blower on high speed. K3-1 switches to

power the economizer (if equipped). Dampers open to minimum posiĆ

tion.

Heating:

5-Heating demand initiates at W1 in the thermostat and passes through to

ECH16.

See Electric Heat Sequence of 0peration.

Page 58

CHA16 G, J VOLTAGE

SEQUENCE OF OPERATION Cooling:

1- Line voltage energizes transformer T1. Transformer T1 provides

24VAC power to all unit controls and thermostat.

2- Cooling demand energizes Y1 and G in the thermostat. Y1 energizes

compressor contactor K1 and G energizes indoor blower relay K3.

3- K1-1 closes to energize compressor and condenser fan.

4- K3-2 switches to energize blower on high speed. K3-1 switches to

power the economizer (if equipped). Dampers open to minimum posiĆ

tion.

Heating:

5-Heating demand initiates at W1 in the thermostat and passes through to

ECH16.

See Electric Heat Sequence of 0peration.

Page 59

ECH16-5kW-P VOLTAGE

ECH16 5kW P VOLTAGE SEQUENCE OF OPERATION

NOTE - Call for heat is first stage heat for CHA16 units and second stage heat for CHP16/20 units.

1- On a call for heat, thermal heat relay K32 and resistor

R6 are energized. Within 1-110 seconds, contacts K32-1 close followed by K32-2.

2- When K32-1 closes, nothing happens since indoor

blower is already energized form first stage heat call.

3- When K32-2 closes, heating element HE1 is enerĆ

gized. 4- When heating demand is satisfied, heat relay K32 is

de-energized. Heating element HE1 de-energizes imĆ

mediately.

Page 60

ECH16-7/10kW-P VOLTAGE

ECH16-7/10kW- P VOLTAGE SEQUENCE OF OPERATION

NOTE - Call for heat is first stage heat for CHA16 units and second stage heat for CHP16/20 units.

1- On a call for heat, thermal heat relay K32 and K33 are

energized. Within 1-110 seconds, contacts K32-1 and K33-1 close followed by K32-2 and K33-2.

2- When either K32-1 or K33-1 closes, nothing happens

as indoor blower is aleady energized from first stage heat call.

3- When K32-2 closes, heating element HE1 is enerĆ

gized. 4- When K33-2 closes, heating element HE2 is enerĆ

gized. 5- When heating demand stops, heat relays K32 and K33

de-energize. Heating element HE1 and HE2 de-enerĆ

gize immediately.

Page 61

ECH16-15/20/25kW P VOLTAGE

ECH16 15 / 25kW P VOLTAGE SEQUENCE OF OPERATION

NOTE - Call for heat is first stage heat for CHA16 units and second stage heat for CHP16/20 units.

1- On a call for heat, relay K43 is energized. K43-1 closes

immediately.

2- When K43-1 closes, heat relays K15, K16 and K17 are

energized. K15-1, K16-1 and K17-1 close immediately.

3- When K43-2 closes, nothing happens as indoor blower

is already energized from first stage heat call.

4- When K15-1 closes, 15kW: heating element HE1 is enĆ

ergized. When K15-1 closes, 20kW or 25kW: heating element HE1 and HE2 are energized.

5- When K16-1 closes, 15kW: heating element HE2 is enĆ

ergized.

When K16-1 closes, 20kW or 25Kw: heating element

HE3 and HE4 are energized. 6- When K17-1 closes, 15kW: heating element HE3 is enĆ

ergized.

When K17-1 closes, 20kW or 25kW: heating element

HE5 and HE6 are energized. 7- When heating demand is satisfied, heat relay K43 is

de-energized. All heating elements de-energized imĆ

mediately.

Page 62

ECH16-5/7/10/15kW Y VOLTAGE

ECH16-5 /15kW Y VOLTAGE SEQUENCE OF OPERATION

NOTE - Call for heat is first stage heat for CHA16 units and second stage heat for CHP16/20 units.

1- On a call for second stage heat, relay K43 is energized.

K43-1 closes immediately.

2- When K43-1 closes, heat relay K15 is energized.

K15-1 closes immediately.

3- K43-2 closes but nothing happens as indoor blower is

already energized from first stage heat call.

4- When K15-1 closes, heating elements HE1, HE2 and

HE3 are energized. 5- When heating demand is satified, heat relay K43 is de-

energized. All heating elements de-energize immediĆ

ately.

Page 63

ECH16-20/25kW Y VOLTAGE

ECH16-20 / 25kW Y VOLTAGE SEQUENCE OF OPERATION

NOTE - Call for heat is first stage heat for CHA16 units and second stage heat for CHP16/20 units.

1- On a call for second stage heat, relay K43 is energized.

K43-1 closes immediately.

2- When K43-1 closes, heat relay K15 and time delay

relay DL2 are energized. K15-1 closes immediately. DL2 begins 30 second countdown before closing. When K43-2 closes nothing happens as indoor blower is already energized from first stage heat call.

3- When K15-1 closes, heating elements HE1, HE2 and

HE3 are energized. HE1, HE2 and HE3 are connected in a delta" configuration for three-phase operation.

4- After 30 second count, time-delay DL2 closes and enĆ

ergizes heating contactor K16. K16-1 closes immediĆ

ately. 5- When K16-1 closes, heating elements HE4, HE5 and

HE6 are energized. HE4, HE5 and HE6 are connected

in a delta" configuration for three-phase operation. 6- When heating demand is satisfied, heat relay K43 and

all heating elements connected to K15 are de-enerĆ

gized. All heating elements connected to K16 are de-

energized when DL2 contacts open (about one second

later).

Page 64

ECH16-7/10/15/20/25kW G, J, M VOLTAGE

ECH16-20 / 25kW G, J, M VOLTAGE SEQUENCE OF OPERATION

NOTE - Call for heat is first stage heat for CHA16 units and second stage heat for CHP16/20 units.

1- On a call for second stage heat, relay K43 is energized.

K43-1 and K43-2 contacts close immediately.

2- When K43-1 closes, heat relay K15 is energized.

K15-1 closes immediately.

3- When K43-2 closes nothing happens as indoor blower

is already energized from first stage heat call.

4- When K15-1 closes, 7/10/15kW: heating elements

HE1, HE2 and HE3 are energized. HE1, HE2 and HE3

are connected in a wye" configuration. 20/25kW: heatĆ

ing elements HE4, HE5 and HE6 are energized. HE4,

HE5 and HE6 are configured in a wye" configuration. 5- When heating demand is satisfied, K43 is de-enerĆ

gized followed by K15 and all heating elemnts.

Page 65

ELECTROMECHANICAL THERMOSTAT WITH ECONOMIZER

Page 66

ELECTROMECHANICAL THERMOSTAT WITH ECONOMIZER

Operation Sequence:

1- Economizer outdoor air dampers drive full closed anytime blower B3 is not operating (switched by K3-2 in the unit). 2- Damper motor terminal TR is powered by unit contactor K3 when there is a blower demand or a heating demand. When 24VAC is applied between

terminals TR and TR1, the damper motor is energized and the outdoor air dampers open to minimum position.

3- Blower B3 is energized (indirectly) by thermostat terminal G. On a cooling demand, thermostat terminal G energizes contactor K3 which in turn enerĆ

gizes the blower (refer to operation sequence on previous page for exact sequence). When K3 energizes, K3-1 closes to energize the blower and K3-2 closes to energize the economizer (see step 2) and open the outdoor air dampers to minimum position.

Enthalpy Low, 1st Stage Cool:

4- Initial cooling demand Y1 is sent to enthalpy control A6 and terminal 1. 5- Enthalpy control A6 has determined that outside air can be used for cooling and has switched internal relays 1K and 2K. 6- Cooling demand is routed through enthalpy control to energize internal relay 1S. Internal contacts 1S1 close to complete a circuit through damper motor

terminals T and T1.

7- When 24 volts is applied across terminals T and T1 of damper motor, the damper motor energizes and outdoor air dampers open. Supply air sensor R1

varies the voltage across T and T1 and the outdoor air dampers open and adjust accordingly. 1st stage cooling is provided by outdoor air.

Enthalpy Low, 2nd Stage Cool:

8- Economizer outdoor air dampers remain open. 9- Additional cooling demand is routed from thermostat Y2 through enthalpy control terminals 3 and 5 to energize the 1st stage compressors. The 1st

stage compressors provide all additional cooling.

Enthalpy High, 1st Stage Cool:

10-Enthalpy control internal relays 1K and 2K switch. Internal relay 1S is de-energized and 1S1 opens. Outdoor air dampers close to minimum position.

Page 67

11-Cooling demand is sent from thermostat terminal Y1 through enthalpy control terminals 1 and 2 and through enthalpy control terminal 5 to energize the

1st stage compressors.

Enthalpy High, 2nd Stage Cool:

12-Additional cooling demand is sent from thermostat terminal Y2 through enthalpy control terminals 3 and 4 to energize the 2nd stage compressor.

Lennox CHP16-024, CHA16-030, CHA16-060, CHA16-036, CHP16-030 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

CHP16/20 P VOLTAGE

CHP16/20 G VOLTAGE

CHA16 P VOLTAGE

CHA16 Y VOLTAGE

CHA16 G, J VOLTAGE