Carrier NP034-074 User Manual

48DJ,DK,NP034-074

50DJ,DK,DW,DY,NB,NP034-074

Single Package Heating and Cooling Units

Installation, Start-Up and

Service Instructions

CONTENTS

Page

GENERAL ...................................2

SAFETY CONSIDERATIONS ...................2

INSTALLATION .............................2-37

Rigging and Unit Placement ..................2

Roof Curb ...................................2

Roof Mount ..................................2

Slab Mount ..................................2

Positioning ..................................3

Field-Fabricated Ductwork ....................6

Condensate Drains ..........................10

Install Outdoor Hoods .......................10

• UNIT SIZES 034 AND 044

• UNIT SIZES 054-074

Outdoor-Air Inlet Adjustments ...............10

• MANUAL OUTDOOR-AIR DAMPER

• ECONOMIZER SETTINGS

Field Wire Routing ..........................17

• UNIT SIZES 034 AND 044

• UNIT SIZES 054-074

Field Electrical Connections .................17

• POWER WIRING

• CONTROL WIRING

Gas Piping (48 Series Units Only) ............36

Installing Flue/Inlet Hoods (48 Series Units

Only) ......................................36

• UNIT SIZES 034 AND 044

• UNIT SIZES 054-074

PRE-START-UP ............................38-41

Unit Preparation ............................38

Compressor Mounting .......................38

Evaporator-Fan Shipping Brackets ...........38

• UNIT SIZES 034 AND 044

• UNIT SIZES 054-074

Internal Wiring ..............................38

Refrigerant Service Valves ...................38

Crankcase Heaters ..........................38

Compressor Oil .............................38

Gas Manifold Pressure (48 Series

Units Only) ................................39

Unit Voltage ................................39

Leak Test and Dehydration ..................39

Evaporator-Fan Belts, Pulleys, and Sheaves ..39

Condenser Fans and Motors .................40

Return-Air Filters ...........................40

Economizer Inlet Screens ...................40

Economizer Dampers .......................40

25% Outdoor-Air Damper ....................40

Initial Check ................................41

START-UP .................................41,42

General .....................................41

Operating Sequences .......................41

• COOLING, UNITS WITHOUT ECONOMIZER

• HEATING, UNITS WITHOUT ECONOMIZER

• COOLING, UNITS WITH ECONOMIZER

Page

• HEATING, UNITS WITH ECONOMIZER

• VENTILATION AIR CIRCULATION (Continuous Fan)

• AUTOMATIC CHANGEOVER USING AUTOMATIC
CHANGEOVER THERMOSTAT

Head Pressure Control ......................42

SERVICE ..................................42-53

Service Access .............................42

• COMPRESSORS

• LIQUID SERVICE VALVES, FILTER DRIERS, AND
SIGHT GLASSES

• EVAPORATOR-FAN MOTORS, PULLEYS, AND
BELTS

• POWER EXHAUST MOTORS, PULLEYS, AND
BELTS

• UNIT CONTROL BOX

• GAS HEAT SECTION (48 Series Units Only)

• MAIN AND PILOT BURNERS (48 Series Units Only)

• FLUE GAS PASSAGEWAYS (48 Series Units Only)

• COMBUSTION AIR BLOWER (48 Series Units Only)

• ECONOMIZER DAMPER MOTOR

• ELECTRIC HEATER CONTROL BOX (50 Series
Units Only)

• HEATER BOX (50 Series Units Only)

• 25% OUTDOOR-AIR DAMPER

• MODULATING POWER EXHAUST DAMPER
MOTOR

• RETURN-AIR FILTERS

• CONDENSER FANS AND FAN MOTORS

• INLET GUIDE VANE MOTOR

Cleaning ....................................45

Lubrication .................................45

• COMPRESSORS

• FAN SHAFT BEARINGS

• INLET GUIDE VANE BEARINGS (Units With
Optional Inlet Guide Vanes)

• FAN MOTOR BEARINGS

• DOOR HINGES

Adjustments ................................46

• EVAPORATOR FAN AND POWER EXHAUST
MOTOR PLATE

• MODULATING POWER EXHAUST DIFFERENTIAL
PRESSURE SWITCH

• INLET GUIDE VANE DIFFERENTIAL PRESSURE
SWITCH (Units With Optional Inlet Guide Vanes and
Static Pressure Control)

• BELT INSTALLATION AND TENSIONING

• PULLEY ALIGNMENT

• INSTALLING ALTERNATE MOTOR PULLEY
(Evaporator Fan Only)

• CONDENSER FAN ADJUSTMENT

• 25% OUTDOOR-AIR DAMPER

• REFRIGERANT CHARGE

• PILOT LIGHT OFF (48 Series Units Only)

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book 1 1
Tab 1a 1b

PC 111 Catalog No. 564-818 Printed in U.S.A. Form 48/50D,N-9SI Pg 1 3-96 Replaces: 48DJ,DK-3SI;

48/50NB,NP-1SI; 50DJ,DK-9SI

CONTENTS (cont)

• AUTOMATIC PILOT ADJUSTMENT (48 Series
Units Only)

• GAS VALVE ADJUSTMENT (48 Series Units Only)

• MAIN BURNER ADJUSTMENT (48 Series
Units Only)

Main Burner Removal (48 Series Units Only) ..50

Switch Adjustment .........................50

Refrigerant Feed Components ...............50

Thermostatic Expansion Valve (TXV) .........50

Moisture/Liquid Indicator ....................51

Filter Drier ..................................51

Liquid Line Service Valve ....................51

Compressor Discharge Service Valve ........51

Compressor Suction Service Valve ...........51

Protective Devices ..........................51

• COMPRESSOR PROTECTION

• EVAPORATOR-FAN MOTOR PROTECTION

• CONDENSER-FAN MOTOR PROTECTION

• HIGH- AND LOW-PRESSURE SWITCHES

Relief Devices ..............................51

Control Circuit, 115 V .......................52

Control Circuit, 24 v .........................52

Electric Heat (50 Series Units Only) ..........52

• OVERCURRENT

• OVERTEMPERATURE

Gas Heat (48 Series Units Only) ..............52

• LIMIT SWITCHES

• ROLLOUT SWITCH

TROUBLESHOOTING ......................52-69

Economizer .................................52

• ECONOMIZER MOTOR CHECKOUT

• ECONOMIZER CONTROL BOARD CHECKOUT

Unit Control Board Checkout ................53

• BASIC CHECK

• DETAILED CHECK

START-UP CHECKLIST .....................CL-1

Before performing service or maintenance operations on
unit, turn offmain power switch to unit. Electrical shock
could cause personal injury.

Do not try to light any appliance. Do not touch any elec­trical switch; do not use any phone in your building.
Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions. If you can­not reach your gas supplier, call the fire department.

Do not store or use gasoline or other flammable vapors
and liquids in the vicinity of this or any other appliance.

Improper installation, adjustment, alteration, service, or
maintenance can cause injury or property damage. Re­fer to this manual. For assistance or additional infor­mation, consult a qualified installer, service agency, or
the gas supplier.

Disconnect gas piping from 48 Series units when leak
testing at pressures greater than 0.5 psig. Pressures greater
than 0.5 psig will cause gas valve damage resulting in
a hazardous condition. If gas valve is subjected to pres­sure greater than 0.5 psig, it must be replaced. When
pressure testing field-supplied gas piping at pressures of

0.5 psig or less, the unit connected to such piping must
be isolated by manually closing the gas valve.

GENERAL

This installation instruction contains base unit installa­tion, start-up, and service instructions only. For complete in­formation on PIC (Product Integrated Controls) and variable­air volume (VAV) controls and troubleshooting, refer to
appropriate Controls and Troubleshooting literature also en­closed in this literature packet.

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment
can be hazardous due to system pressure and electrical com­ponents. Only trained and qualified service personnel should
install, repair, or service air-conditioning equipment.

Untrained personnel can perform basic maintenance func­tions of cleaning coils and filters and replacing filters. All
other operations should be performed by trained service per­sonnel. When working on air-conditioning equipment, ob­serve precautions in the literature, tags and labels attached
to the unit, and other safety precautions that may apply.

Follow all safety codes, including ANSI (American Na­tional Standards Institute) Z223.1. Wear safety glasses and
work gloves. Use quenching cloth for unbrazing operations.
Have fire extinguisher available for all brazing operations.

INSTALLATION

Riggingand UnitPlacement —

portation damage. File claim with transportation agency. Do
not drop unit; keep upright. Use spreader bars over unit to
prevent sling or cable damage. Sheets of plywood placed along
the condenser coils will provide additional protection. All
lifting lugs MUST be used when lifting unit. Level by using
unit frame as a reference. See Fig. 1 for information. Unit
and accessory weights are shown in Tables 1A, 1B, and 2.
Weight distribution and center of gravity can be found in
Fig. 2.

Inspect unit for trans-

Roof Curb — Assemble and install as described in in-

structions shipped with the accessory. Accessory roof curb
and information required to field fabricate a roof curb is shown
in Fig. 3A-3C. Install insulation, cant strips, roofing and counter
flashing as required. For unit condensate drains to function
properly, curb must be level or within tolerances shown in
Fig. 3A-3C.

Roof Mount — Check building codes for weight distri-

bution requirements. Unit weight is shown in Tables 1A and
1B. Unit may be mounted on class A, B, or C roofing
material.

Slab Mount — Provide a level concrete slab that ex-

tends beyond unit cabinet at least 6 inches. Make a slab 8 in.
thick with 4 in. above grade. Use gravel apron in front of
condenser coil air inlet to prevent grass and foliage from ob­structing airflow.

2

NOTES:

1. Sizes 034,044:Rigwith4 cables and spread with two 95 in. (2413 mm) and
2 8A 1 A8 long spreader bars.
Sizes 054-074:Rigwith 4 cables and spread withfour 95 in. (2413 mm) and
2 8A 1 B 1 A8 long spreader bars.

2. Center of gravity includes economizer.

RIGGING WEIGHTS AND DIMENSIONS

1. All panels must be in place when rigging.

2. Unit is not designed for handling by forklift truck.

UNIT

48DJD,DKD,NPD034 5941 2694.8

48DJE,NPE034 6070 2753.4 110.4 2804

48DJD,DKD,NPD044 6841 3103.1

48DJE,NPE044 6970 3161.6 128.6 3267

48DJD,DKD,NPD054 9230 4186.7

48DJE,NPE054 9350 4241.2

48DJD,DKD,NPD064 9530 4322.8

48DJE,NPE064 9650 4377.2

48DJD,DKD,NPD074 9950 4513.3

48DJE,NPE074 10,080 4572.3

50DJ,DK,NP034 5700 2585.5 84.8 2153 120.8 3067

50DW,DY,NB034 6270 2844.1 76.4 1940 102.5 2604

50DJ,DK,NP044 6350 2880.4 92.6 2353 126.6 3216

50DW,DY,NB044 6920 3138.9 86.0 2185 108.4 2753

50DJ,DK,NP054 8230 3733.1 120.8 3066 126.8 3221

50DW,DY,NB054 8780 3982.6 109.0 2769 109.0 2769

50DJ,DK,NP064 8530 3869.2 120.9 3071 120.9 3071

50DW,DY,NB064 9080 4119.7 120.8 3066 126.8 3221

50DJ,DK,NP074 8960 4064.3 131.7 3345 137.6 3495

50DW,DY,NB074 9500 4309.2 109.0 2769 109.0 2769

*Includes optional economizer.

UNIT WEIGHT* A B

Lb Kg in. mm in. mm

86.0 2185

92.6 2353

121.5 3086 126.8 3221

134.7 3421 134.7 3421

Fig. 1 — Rigging Label

109.4 2780

127.6 3240

If roof curb is not used, support unit with steel beams along

its entire length and then support steel as required.As a mini­mum, unit must be supported across its width at each lifting
lug location.

Positioning — Provideclearance around and above unit

for airflow,safety,and service access. Do not restrict top (area
above condenser fans) in any way. Allow at least 6 ft on all
sides for rated performance, code compliance, and service.

Do not install unit in an indoor location. Do not locate air
inlets near exhaust vents or other sources of contaminated
air.

On units equipped with or power exhaust option, high ve­locity air is exhausted out the hoods. Unit should be posi­tioned with at least 10 ft clearance between the exhaust hoods
and any obstruction. Although unit is weatherproof, guard
against water from higher level runoff and overhangs.

3

Table 1A — Physical Data; 034, 044 Units

BASE UNIT* 034 044
NOMINAL CAPACITY (tons) 30 40
OPERATING WEIGHT (lb)

Base Unit

48 Series, Low Heat 5641 6541
48 Series, High Heat
50 Series, Horizontal Discharge 5970 6620
50 Series, Vertical Discharge 5400 6050

With Economizer

48 Series, Low Heat 5941 6841
48 Series, High Heat 6070 6970
50 Series, Horizontal Discharge 6270 6920
50 Series, Vertical Discharge 5700 6350

COMPRESSORS

Quantity...Type 2...06D 2...06E
Capacity Steps (%) 17, 33, 50, 66, 83, 100 25, 50, 75, 100
Number of Refrigerant Circuits 22

REFRIGERANT

Operating Charge (lb), Sys 1/Sys 2

Without Hot Gas Bypass
With Hot Gas Bypass 31.0/29.0 42.0/40.0

CONDENSER COILS

Quantity 22
Rows...Fins/in.

Aluminum
Copper (Optional) 3...13.7 3...13.7

Total Face Area (sq ft) 37.5 50.0

EVAPORATOR COILS

Quantity
Rows...Fins/in. 3...15.0 3...15.0
Total Face Area (sq ft) 32.1 45.5
Refrigerant Feed Device...No. per Circuit TXV...1 TXV...2

HEATING SECTION (48 Series Units Only) Low Heat High Heat Low Heat High Heat

Number of Heat Exchangers
Input (MBtuh) 264 529 264 529
Output (MBtuh) 211 423 211 423
Temperature Rise Range (F) 0-30 15-45 0-30 15-45
Efficiency (%) 79 79 79 79
Burner Orifice Diameter

Quantity (in. ...drill no.) 6 (.1285...30) 12 (.1285...30) 6 (.1285...30) 12 (.1285...30)

Pilot Orifice Diameter

Quantity (in. ...drill no.) 1 (.076...48) 2 (.076...48) 1 (.076...48) 2 (.076...48)

Firing Stages 2222
Number of Gas Valves

CONDENSER FANS Propeller Type

Quantity...Diameter (in.) 2...30 3...30
Nominal Cfm 18,600 26,000
Motor Hp...Rpm 1.0...1140 1.0...1140

EVAPORATOR FAN Centrifugal 25 x 25 in.

Nominal Cfm 10,500 14,000
Maximum Allowable Cfm 15,000 20,000
Maximum Allowable Rpm 900 900
Shaft Diameter at Pulley (in.) 1

EVAPORATOR-FAN MOTOR AND DRIVE (Any motor available on any unit)

Motor Hp 7.5 10.0 15.0 20.0
Motor Frame Size 213T 215T 254T 256T
Efficiency at Full Load (%)

Standard Efficiency 82.9 85.6 84.5 87.5

High Efficiency† — 89.5 90.0 91.0
Fan Pulley Pitch Diameter (in.) 13.7 13.7 13.7 13.7
Motor Pulley Pitch Diameter (in.) 34.4 4.3 4.9 5.5
Resulting Fan Rpm 405 510 580 660
Belts Quantity...Model No.

48 Series and 50 Series, Horizontal Discharge 2...BX60 2...5VX630 2...5VX630 2...5VX630

50 Series, Vertical Discharge 2...BX60 2...5VX630 2...5VX630 2...5VX630
Center Distance Range (in.)

48 Series and 50 Series, Horizontal Discharge 17.74...14.30 17.74...14.30 17.63...14.01 17.63...14.01

50 Series, Vertical Discharge 19.86...15.87 19.86...15.87 19.04...15.00 19.04...15.00

OPTIONAL POWER EXHAUST Centrifugal, 15 x 15 in. (Any motor available on any unit)

Quantity...Motor Hp 2...3.0 2...5.0 2...7.5
Motor Frame Size 56HZ 184T 213T
Efficiency at Full Load (%) 81.0 84.0 82.9
Fan Pulley Pitch Diameter (in.) 6.9 6.9 6.9
Motor Pulley Pitch Diameter (in.) 3.35 4.12 5.0
Shaft Diameter at Pulley (in.) 1
Resulting Fan Rpm 843 1040 1264
Maximum Allowable Rpm 1300 1300 1300
Belts Quantity...No. 2...3VX670 2...3VX670 2...3VX710

FILTERS

Standard Efficiency Throwaway (Standard) 12...20 x 25 x 2 12...20 x 25 x 2

Quantity...Size (in.) 4...16 x 20 x 2 4...16 x 20 x 2
Medium Efficiency (30%) Pleated (Optional) 12...20 x 25 x 2 12...20 x 25 x 2

Quantity...Size (in.) 4...16 x 20 x 2 4...16 x 20 x 2
High Efficiency (90%) Bag Filters with Prefilters (Optional) 6...20 x 24 x 22 6...20 x 24 x 22

Quantity...Size (in.) 6...20 x 20 x 22 6...20 x 20 x 22

612612

1212

3

TXV — Thermostatic Expansion Valve
*Data is for all 48 and 50 Series units of the size listed unless otherwise specified.

†Not available on 575-v units.

5770 6670

Semi-Hermetic

29.0/29.0 40.0/40.0

3

⁄8-in. Tube Diameter

3...15.0 3...15.0

1

12

11

⁄

16

⁄

16

⁄2-in. Tube Diameter

13⁄

16

111⁄

16

13⁄

16

4

Table 1B — Physical Data; 054-074 Units

BASE UNIT* 054 064 074
NOMINAL CAPACITY (tons) 50 60 75
OPERATING WEIGHT (lb)

Base Unit

48 Series, Low Heat 8700 9000 9420
48 Series, High Heat 8820 9120 9550
50 Series, Horizontal Discharge 8250 8550 8970
50 Series, Vertical Discharge 7700 8000 8430

With Economizer

48 Series, Low Heat 9230 9530 9950
48 Series, High Heat 9350 9650 10,080
50 Series, Horizontal Discharge 8780 9080 9500
50 Series, Vertical Discharge 8230 8530 8960

COMPRESSORS Semi-Hermetic

Quantity...Type 2...06E 2...06E 2...06E
Capacity Steps (%) 20, 40, 60, 80, 100 17, 33, 50, 66, 83, 100 14, 28, 43, 71, 85, 100
Number of Refrigerant Circuits 222

REFRIGERANT

Operating Charge (lb), Sys 1/Sys 2

Without Hot Gas Bypass 59.0/44.5 61.0/61.0 70.5/64.5
With Hot Gas Bypass 62.0/44.5 64.0/61.0 73.5/64.5

CONDENSER COILS

Quantity 444
Rows...Fins/in.

Aluminum 2...17.0, 3...17.0 3...17.0 3...17.0
Copper (Optional) 2...15.7, 3...15.7 3...15.7 3...15.7

Total Face Area (sq ft) 72.4 72.4 108.4

EVAPORATOR COILS

Quantity 222
Rows...Fins/in. 3...17.0 4...17.0 4...17.0
Total Face Area (sq ft) 61.5 61.5 61.5
Refrigerant Feed Device...

No. per Circuit

HEATING SECTION (48 Series Units Only) Low Heat High Heat Low Heat High Heat Low Heat High Heat

Number of Heat Exchangers 12 18 12 18 12 18
Input (MBtuh) 540 810 540 810 540 810
Output (MBtuh) 432 648 432 648 432 648
Temperature Rise Range (F) 5-35 15-45 5-35 15-45 5-35 15-45
Efficiency (%) 80 80 80 80 80 80
Burner Orifice Diameter

Quantity (in. ...drill no.) 12 (.1285...30) 18 (.1285...30) 12 (.1285...30) 18 (.1285...30) 12 (.1285...30) 18 (.1285...30)

Pilot Orifice Diameter

Quantity (in. ...drill no.) 2 (.076...48) 3 (.076...48) 2 (.076...48) 3 (.076...48) 2 (.076...48) 3 (.076...48)

Firing Stages 222222
Number of Gas Valves 232323

CONDENSER FANS Propeller Type

Quantity...Diameter (in.) 4...30 4...30 5...30
Nominal Cfm 40,000 40,000 50,000
Motor Hp...Rpm 1.0...1140 1.0...1140 1.0...1140

EVAPORATOR FAN Centrifugal 30 x 27 in.

Nominal Cfm 17,500 21,000 24,500
Maximum Allowable Cfm 25,000 30,000 30,000
Maximum Allowable Rpm 750 750 750
Shaft Diameter at Pulley (in.) 1

EVAPORATOR-FAN MOTOR AND DRIVE (Any motor available on any unit)

Motor Hp 15.0 20.0 25.0 30.0
Motor Frame Size 254T 256T 284T 286T
Efficiency at Full Load (%)

Standard Efficiency 84.5 87.5 87.1 88.3

High Efficiency† 90.0 91.0 91.7 92.4
Fan Pulley Pitch Diameter (in.) 13.7 13.7 13.7 15.5
Motor Pulley Pitch Diameter (in.) 4.5 5.1 5.5 5.9
Resulting Fan Rpm 555 625 660 700
Belts Quantity...Model No.

48 Series and 50 Series, Horizontal Discharge 2...5VX1120 2...5VX1150 2...5VX1150 2...5VX1180

50 Series, Vertical Discharge 2...5VX1230 2...5VX1230 2...5VX1230 2...5VX1230
Center Distance Range (in.)

48 Series and 50 Series, Horizontal Discharge 48.25...44.00 48.25...44.00 48.50...44.25 48.50...44.25

50 Series, Vertical Discharge 44.25...39.75 44.25...39.75 44.00...40.00 44.00...40.00

OPTIONAL POWER EXHAUST Centrifugal, 18 x 15 in. (Any motor available on any unit)

Quantity...Motor Hp 2...5.0 2...7.5 2...10.0
Motor Frame Size 184T 213T 215T
Efficiency at Full Load (%) 84.0 82.9 85.6
Fan Pulley Pitch Diameter (in.) 10.6 10.6 10.6
Motor Pulley Pitch Diameter (in.) 4.5 5.0 5.6
Shaft Diameter at Pulley (in.) 1
Resulting Fan Rpm 740 820 920
Maximum Allowable Rpm 925 925 925

FILTERS

Standard Efficiency
Throwaway (Standard) 15...20 x 25 x 2 15...20 x 25 x 2 15...20 x 25 x 2

Quantity...Size (in.) 5...16 x 20 x 2 5...16 x 20 x 2 5...16 x 20 x 2
Medium Efficiency (30%) Pleated (Optional) 15...20 x 25 x 2 15...20 x 25 x 2 15...20 x 25 x 2

Quantity...Size (in.) 5...16 x 20 x 2 5...16 x 20 x 2 5...16 x 20 x 2
High Efficiency (90%) Bag Filters
with Prefilters (Optional) 6...20 x 24 x 22 6...20 x 24 x 22 6...20 x 24 x 22

Quantity...Size (in.) 6...24 x 24 x 22 6...24 x 24 x 22 6...24 x 24 x 22

TXV...2 TXV...2 TXV..2

11

⁄

16

7

⁄

16

TXV — Thermostatic Expansion Valve
*Data is for all 48 and 50 Series units of the size listed unless otherwise specified.

†Not available on 575-v units.

3

⁄8-in. Tube Diameter

1

⁄2-in. Tube Diameter

111⁄

16

17⁄

16

111⁄

17⁄

16

16

5

Table 2 — Operating Weights of Options and Accessories

OPTION OR ACCESSORY

Roof Curb

Condenser Section Roof Curb — — 540 540 625
Economizer 300* 300* 530* 530* 530*
Power Exhaust 600* 600* 710* 710* 710*
Barometric Relief 200 200 200 200 200
High-Efficiency Filters 20 20 20 20 20
Bag filters 35 35 40 40 40
Hail Guard 120 150 145 145 210
Copper Condenser Coil Fins 180 235 235 235 420
Electric Heat† 150 150 150 150 150
Inlet Guide Vanes 95 95 115 115 115

*Includes hood.

†50 Series vertical discharge units.

48DJ,DK,NP
50DW,DY,NB
50DJ,DK,NP

034 044 054 064 074

450
450
380

480
480
465

UNIT SIZE

515
560
515

515
560
515

515
560
515

UNIT

034 1754 1213 1216 1758 14- 9 3- 8
044 2035 1382 1385 2039 17- 3 3- 8

48DJD,DKD,NPD

48DJE,NPE

50DW,DY,NB

50DJ,DK,NP

NOTE: Weights include economizer.

054 2334 2276 2281 2339 19- 7 3-10
064 2431 2328 2334 2437 19- 7 3-10
074 2452 2518 2523 2457 21- 0 3-10
034 1781 1251 1253 1785 14- 8 3-10
044 2057 1424 1428 2061 17- 2 3-10
054 2375 2295 2300 2380 19- 7 3-10
064 2393 2373 2378 2506 19- 7 3-10
074 2494 2541 2546 2499 21- 0 3-10
034 1864 1268 1271 1867 13- 3 3-10
044 2070 1387 1389 2074 15-10 3-10
054 2381 2005 2009 2385 19-10 3-10
064 2461 2074 2078 2467 19-10 3-10
074 2551 2194 2199 2556 21- 3 3-10
034 1674 1173 1175 1678 13- 9 3-10
044 1879 1292 1295 1884 16- 3 3-10
054 2090 2021 2025 2094 18- 2 3-10
064 2188 2073 2077 2192 18- 2 3-10
074 2212 2263 2269 2216 21- 3 3-10

UNIT CENTER OF GRAVITYAND CORNER WEIGHTS

CORNER WEIGHT (lb) DIMENSIONS (Ft-in.)

1234 A B

Fig.2—Weight Distribution and Center of Gravity

Field-FabricatedDuctwork — Units are designed for

vertical supply/return only.Field-fabricated ductwork should
be attached to the roof curb. Supply and return duct dimen­sions are shown in Fig. 3A-3C.

To attach ductwork to roof curb, insert duct approxi­mately 10 to 11 in. up into roof curb. Connect ductwork to
14-gage roof curb material with sheet metal screws driven
from inside of the duct.

Secure all ducts to the building structure, using flexible
duct connectors between roof curb and ducts as required. Ducts
passing through an unconditioned space must be insulated
and covered with a vapor barrier. Outlet grilles must not lie
directly below unit discharge. The return duct must have a
90-degree elbow before opening into the building space if
unit is equipped with power exhaust.

Design supply duct strong enough to handle expected static

pressures.

6

UNIT

MODEL

48DJ,DK,NP 034

50DW,DY,NB 034

UNIT
SIZE

mm ft-in. mm ft-in.

6606 21-8

50DJ,DK,NP 034 6131 20-1
48DJ,DK,NP 044

50DW,DY,NB 044

7825 25-8

50DJ,DK,NP 044 7344 24-1

UNIT LEVELING TOLERANCES

DIMENSIONS*

(degrees and inches)

AB

Deg in. Deg in.

1.0 2.0 .50 .75

*From edge of unit to horizontal.

XY

1

⁄

16

3

⁄

8

1

⁄

16

1

⁄

8

4056 13- 311⁄
3311 10-103⁄
4893 16- 05⁄
4141 13- 71⁄

16

8

8

16

NOTES:

1. Roof curb is shipped unassembled.

2. Roof curb: 14 gage (VA03-56) steel.

3. Dimensions in [ ] are millimeters.

NOTE: To prevent the hazard of stagnant water build-up in the
drain pan of the indoor-air section, unit can only be pitched as
shown.

Fig. 3A — Roof Curb; 034, 044 Units

7

UNIT

MODEL

48DJ,DK,NP 054,064

50DW,DY,NB 054,064

UNIT
SIZE

mm ft-in. mm ft-in. mm ft-in.

2474 8-1

50DJ,DK,NP 054,064 2458 8-0
48DJ,DK,NP 074

50DW,DY,NB 074

3383 11-1

50DJ,DK,NP 074 3367 11-0

UNIT LEVELING TOLERANCES

DIMENSIONS*

(degrees and inches)

AB

Deg in. Deg in.

1.0 2.0 .50 .75

*From edge of unit to horizontal.

XY Z

3

⁄88476 27-911⁄166965 22-103⁄

3

⁄47444 24-51⁄

3

⁄168476 27-911⁄166965 22-103⁄

9

⁄167444 24-51⁄

16

16

5933 19- 59⁄

5933 19- 59⁄

16

16

16

16

NOTES:

1. Roof curb is shipped unassembled.

2. Roof curb: 14 gage (VA03-56) steel.

3. Dimensions in [ ] are millimeters.

4. Suggested hole location for field wiring
through roof curb (holes to be field drilled).

NOTE: To prevent the hazard of stagnant water build-up in the
drain pan of the indoor-air section, unit can only be pitched as
shown.

Fig. 3B — Roof Curb; 054-074 Units

8

UNIT

SIZE

DIMENSION X

mm Ft-in.

054,064 270 0-10

074 255 0-101⁄

UNIT LEVELING TOLERANCES

DIMENSIONS*

5

⁄

8
16

Deg in. Deg in.

(degrees and inches)

AB

1.0 2.0 .50 .75

*From edge of unit to horizontal.
NOTE: To prevent the hazard of stagnant water

build-up in the drain pan of the indoor-air section,
unit can only be pitched as shown.

Fig. 3C — Condenser Section Roof Curb (054-074 Units Only)

9

Condensate Drains — See Fig. 4A-4D and Fig. 5 for

drain locations. The drain assemblies, each consisting of a
10-gage plate with a 11⁄4-in. half coupling welded to it, are
shipped in the unit fan section. Also included are 16-gage
seal plates to cover the drain holes not being used. Open the
access door marked FANSECTION to find the drain assem­blies, seal plates, and 4 screws for each mounting taped to
the unit basepan.

After the unit has been set in place on the roof:

1. Select the appropriate drain locations. The 034 units have
6 drain holes (3 per side), and the 044-074 units have 8
drain holes (4 per side). Two holes on each side must be
selected for condensate drains as shown in Fig. 5, and the
remaining holes must be sealed.

2. Remove the drain assemblies and attach them to the bot­tom of the unit base rails at the preferred drain locations
using the screws provided. See Fig. 6.

NOTE: Use a trap at least 4-in. deep.

3. Cover the remaining drain holes with the seal plates and
screws provided. See Fig. 7.

4. Apply a bead of RTV or similar sealant around the drain
assemblies and seal plates where they attach to the base
rail. See Fig. 8.

NOTE: If unit is slab mounted, holes will need to be drilled
in the side of the base rail and the holes factory-drilled in the
bottom of the base rail will need to be plugged.

Install Outdoor Hoods

UNIT SIZES 034 AND 044
25% Outdoor-Air Hoods (Units Without Economizer

Option)

1. Outdoor-air hoods are shipped bolted to the unit in a ship­ping position. Remove the 6 screws holding each 25% air
hood shipping cover in place.

2. Replace the 6 screws.

3. Remove the holddown screw from each upper corner of
each hood.

4. Pivot hoods outward (2 hoods total).

5. Install 17 screws around outside of each hood. (Screws
are in the fastener package taped to the basepan inside
the fan section.)

6. Apply a bead of RTV or similar sealant to corner of each
hood at pivot point to prevent water leaks. See Fig. 9.

Economizer Hoods (Units WithEconomizer Option) — Fol­low the same procedure described in 25% Outdoor-Air Hoods
section above.

UNIT SIZES 054-074
25% Outdoor-Air Hoods — The outdoor-air hoods are fac-

tory installed on the 054-074 units.
Economizer Hoods (Units With Economizer Option)

1. Remove the 6 screws holding each of the 4 economizer
shipping covers in place.

2. Replace the screws.

3. Remove the holddown screw from each upper corner of
each economizer hood.

4. Pivot hoods outward. (There is a total of 4 hoods.)

5. Install 18 screws, (5 each side, 6 top, and 2 bottom), around
the outside of each hood. (Screws are in the fastener pack­age taped to the basepan inside the fan section.)

6. Apply a bead of RTV or similar sealant to corner of econo­mizer hood at pivot point to prevent water leaks. (See
Fig. 9.)

Outdoor-Air Inlet Adjustments

MANUALOUTDOOR-AIRDAMPER (Units WithoutEcono­mizer Option) —All units except those equipped with a factory­installed economizer have a manual outdoor-air damper to
provide ventilation air. This damper can be preset to admit
up to 25% outdoor air into the return-air compartment. To
adjust, loosen the blade limiter screws as shown in Fig. 10
and move the damper to the desired position. Then retighten
the blade limiter screws to secure the damper. See Fig. 10.
(T omake this adjustment, it is necessary to remove the screens
covering the hood opening and make adjustments from in­side the hood.)

ECONOMIZER SETTINGS
Enthalpy Sensor (See Fig. 11.) — This sensor is located be-

hind the filters in the end economizer hood (the upper hood
on sizes 054-074). See Fig. 12. For maximum benefit of out­door air, set enthalpy sensor control to the A setting. At this
setting, when the relative humidity is 50%, and the outdoor
air is below 74 F, the sensor’s relay contacts will be closed.
See Fig. 13 and 14.

NOTE: Enthalpy control setting dial is on the economizer
motor.

Mixed-Air Thermistor (MAT) — This control set point ad­justment is on the top of the economizer motor. This motor
is located in the return-air section, and is accessed by open­ing the access panel marked FILTER SECTION. See
Fig. 15. Set MAT set point adjustment dial to the desired
setting. The factory setting is 55F±5°F;range is 40 to
90 F. The MAT is located on the filter rack.

Damper Vent Position — The position setting adjustment is
located on the cover of the economizer motor. See Fig. 15.
Adjust by setting the fan switch at ON position (continuous
fan operation), and setting the system selector switch to OFF
position. Then turn adjustment screw slowly until the damp­ers assume the desired vent position. Do not manually op­erate the damper motor; damage to the motor may result.

Economizer Damper Linkage Adjustment — When replac­ing economizer damper motors, or if the linkage has come
loose, it is critical that the linkages be adjusted correctly.
They are sensitive, and incorrect adjustment can cause the
motor to stall.

NB,NPUnitMinimum Position Set Point — Minimum econo­mizer position is set using the keypad and display module.
Refer to Control and Troubleshooting literature for more
details.

10

UNIT SIZE

48DJD,DKD,NPD
48DJE,NPE 5770 2617 4474 14-81⁄

WEIGHT A B C D E F G H J

lb kg mm ft-in. mm ft-in. mm ft-in. mm ft-in. mm ft-in. mm ft-in. mm ft-in. mm ft-in. mm ft-in.

5641 2559 4498 14-9

034

50DW,DY,NB 5970 2708 4044 13-31⁄
48DJD,DKD,NPD
48DJE,NPE 6670 2708 5229 17-17⁄

6541 2967 5255 17-27⁄

044

50DW,DY,NB 6620 3003 4823 15-97⁄

UNIT SIZE

KL

mm ft-in. mm ft-in.
48DJD,DKD,NPD
48DJE,NPE

034 4741 15-6 6797 22-3

50DW,DY,NB
48DJD,DKD,NPD
48DJE,NPE

044 5576 8-3

1

⁄28015 26-39⁄

50DW,DY,NB

1

⁄

8

3662 12-03⁄167278 23-109⁄161709 5-75⁄162216 7- 31⁄44228 13-107⁄162746 9-01⁄8— — 3626 12-109⁄

8

4

8

4497 14-91⁄168496 27-101⁄22328 7-75⁄82091 6-105⁄164706 15-5 3363 11-03⁄83769 12-43⁄84762 15-71⁄

8

8

LEGEND

CONN — Connection
DIM — Dimension

NOTES:

1. Dimensions in [ ] are in millimeters.

5

⁄

8

2. Center ofGravity includeseconomizer.Unit weightdoes
not include economizer.

3. Unit clearances:

Top — Do not restrict condenser fans

16

Control Box End — 68-09
Sides — 68-09
Economizer End — 68-09 (except power exhaustunits 108-09)

Forsmaller service and operational clearances, con­tact Carrier Product Engineering Department.

4. Vertical discharge ducts designed to be attached to
accessory roof curb. If unit is mounted on dunnage,
support the ducts using cross bracesas doneon the
accessory roof curb.

5. When unit is slab mounted, locate the condensate
drain as low as possible on vertical face of base rail
atthe samelocation asthe standard condensatedrain
(usingfactory suppliedfitting). Plugfactory drilled con­densate hole.

16

2

Fig. 4A — Base Unit Dimensional Drawing; 48DJ,DK,NP/50DW,DY,NB034,044 Units

11

UNIT SIZE

50DJ,DK,NP

UNIT SIZE

50DJ,DK,NP

WEIGHT A B C D E F G H

lb kg mm ft-in. mm ft-in. mm ft-in. mm ft-in. mm ft-in. mm ft-in. mm ft-in. mm ft-in.

034 5400 2449 4198 13-9
044 6050 2744 4948 16-2

JK

mm ft-in. mm ft-in.

034 4168 13-8

1

044 4999 16-413⁄167534 24-85⁄

1

⁄42916 9-613⁄166802 22-313⁄161711 5-73⁄82216 7- 31⁄44428 9-01⁄83762 12-43⁄8——

13

⁄163746 12-31⁄28015 26-39⁄162247 7-47⁄162091 6-105⁄163363 11-03⁄84306 14-11⁄23769 12-43⁄

⁄166321 20-87⁄

LEGEND

CONN — Connection
DIM — Dimension

NOTES:

8

1. Dimensions in [ ] are in millimeters.

8

2. Center of Gravity includes economizer. Unit
weight does not include economizer.

3. Unit clearances:

Top — Do not restrict condenser fans
Control Box End — 68-09
Sides — 68-09
EconomizerEnd —68-09 (except power exhaust units
108-09)

Forsmaller service and operational clearances, con­tact Carrier Product Engineering Department.

4. Vertical discharge ducts designed to be attached to
accessory roof curb. If unit is mounted on dunnage,
support the ducts using cross bracesas doneon the
accessory roof curb.

5. When unit is slab mounted, locate the condensate
drain as low as possible on vertical face of base rail
atthe samelocation asthe standard condensatedrain
(usingfactory suppliedfitting). Plugfactory drilled con­densate hole.

8

Fig. 4B — Base Unit Dimensional Drawing; 50DJ,DK,NP034,044 Units

12

UNIT SIZE

48DJD,DKD,NPD
48DJE,NPE 8820 4000
50DW,DY,NB 8250 3742 6045 19-10 7676 25-2
48DJD,DKD,NPD
48DJE,NPE 9120 4137
50DW,DY,NB 8550 3878 6045 19-10 7676 25-2
48DJD,DKD,NPD
48DJE,NPE 9550 4332
50DW,DY,NB 8970 4069 6477 21-3 7676 25-2

LEGEND

CONN — Connection
DIM — Dimension

*Dimension shown is for 48 series units. On 50 series units, dimension given is measured from

economizer end of unit to drain connection closest to condenser fans.

NOTES:

1. Dimensions in [ ] are in millimeters.

2. Center of Gravity includes economizer. Unit weight does not include economizer.

3. Unit clearances:
Top — Do not restrict condenser fans
Control Box End — 68-09
Sides — 68-09 (except power exhaust units 108-09)

WEIGHT A B C D E F G

lb kg mm ft-in. mm ft-in. mm ft-in. mm ft-in. mm ft-in. mm ft-in. mm ft-in.

054

064

074

8700 3946

9000 4082

9420 4273

5969 19-7 6717 22-0

5969 19-7 6717 22-0

6401 21-0 6717 22-0

7

⁄

16

1163 3-913⁄1611,524 37-911⁄

3

⁄

16

7

⁄

16

1163 3-913⁄1611,524 37-911⁄

3

⁄

16

7

⁄

16

1163 3-913⁄1612,433 40-91⁄

3

⁄

16

2718 8-11 6541 21-51⁄

16

2

11,140 36-69⁄

16

2830 9-33⁄46427 21-1
2718 8-11 6541 21-51⁄

16

2

11,140 36-69⁄

16

2830 9-33⁄46427 21-1
3543 11-71⁄25715 18-9

2

12,049 39-6

3

⁄

8

3694 12-13⁄45563 18-3

Economizer End — 68-09 (except power exhaust units 108-09)
For smaller service and operational clearances, contact Carrier Product Engineering
Department.

4. Verticaldischarge ductsdesigned tobe attachedto accessoryroof curb.If unitis mounted
on dunnage, support the ducts using cross braces as done on the accessory roof curb.

5. When unit is slab mounted, locate the condensate drain as low as possible on vertical
face of base rail at the same location as the standard condensate drain (using factory
supplied fitting). Plug factory drilled condensate hole.

Fig. 4C — Base Unit Dimensional Drawing; 48DJ,DK,NP/50DW,DY,NB054-074 Units

13

UNIT SIZE

50DJ,DK,NP

054 7700 3493
064 8000 3629

Weight A B C D E F

Lb Kg mm ft-in. mm ft-in. mm ft-in. mm ft-in. mm ft-in. mm ft-in.

5537 18-2 1163 3-9

074 8430 3824 5969 21-3 1163 3-9

LEGEND

CONN — Connection
DIM — Dimension

*Dimension shown is for 48 series units. On 50 series units, dimension given
is measured from economizer end of unit to drain connection closest to con­denser fans.
NOTES:

1. Dimensions in [ ] are in millimeters.

2. Center of Gravity includes economizer. Unit weight does not include

3. Unit clearances:

economizer.

Top — Do not restrict condenser fans
Control Box End — 68-09
Sides — 68-09 (except power exhaust units 108-09)

13

⁄1610,476 34-47⁄162864 9-43⁄410,092 33-15⁄165347 17-61⁄

13

⁄1611,385 37-41⁄43727 12-23⁄411,001 36-11⁄84483 14-81⁄

Economizer End — 68-09 (except power exhaust units 108-09)
For smallerservice and operational clearances, contactCarrier Product En­gineering Department.

4. Verticaldischarge ducts designed to be attached to accessory roof curb. If
unit is mounted on dunnage, support the ducts using cross braces as done
on the accessory roof curb.

5. When unit is slab mounted, locate the condensate drain as low as possible
on vertical face of base rail at the same location as the standard conden­sate drain (using factory supplied fitting). Plug factory drilled condensate
hole.

2

2

Fig. 4D — Base Unit Dimensional Drawing; 50DJ,DK,NP054-074 Units

14

034 UNITS

044-074 UNITS

Fig. 5 — Drain Location Selection

Fig. 6 — Condensate Drain Location

ROOF MOUNT DRAIN

SLAB MOUNT DRAIN

Fig. 8 — Condensate Drain Piping Details

Fig. 7 — Seal Plate Location

Fig. 9 — Outdoor-Air Hood

15

Fig. 12 — Enthalpy Sensor Location

Fig. 10 — Outdoor-Air Damper Adjustments

(Inside of Hood Shown)

ENTHALPY
SENSOR

O

CONTROL

CURVE

A 73
B 68
C 63
D 58

CONTROL

POINT

(Approx Deg)

AT 50% RH

Fig. 13 — Psychrometric Chart for

Enthalpy Control

Fig. 11 — Enthalpy Sensor

16

NOTES:

1. Switches shown in high enthalpy state. Terminals 2 and 3 close
on enthalpy decrease.

2. When standard economizer is used with accessory differential en­thalpy sensor, set enthalpy control to ‘‘D’’ setting.

Fig. 14 — Wiring Connections for Solid-State

Enthalpy Sensor (HH57AC077)

Fig. 15 — Mixed-Air Thermistor and Economizer

Position Setting Adjustments

(Top of Economizer Motor)

Field Wire Routing

UNIT SIZES 034 AND 044 — Field wiring can be brought
into the unit through the basepan and roof curb or through
the corner post in the side of the unit next to the control box.

A 3-1/2 in. NPT coupling for field power and a 3/4-in.
NPT coupling for 24 v control wiring are provided in the
basepan. There are two 4-5/8 in. knockouts in the corner post
for field power wiring.

If field power wiring is brought through the roof curb, route
wiring out through one of the 4-5/8 in. knockouts to the field­supplied disconnect and then back into the unit through the
other knockout. See Fig. 16 for recommended disconnect
location.

If power wiring is brought through the side of the unit,
route wiring from field-supplied disconnect through top
4-5/8 in. knockouts into unit.

If control wiring is to be brought in through the side of the
unit, a 7/8-in. diameter hole must be drilled in the corner
post next to the control box.

UNIT SIZES 054-074 — Field wiring is brought into the
unit through the bottom of the control box. Wiring can be
brought through the roof curb through field-supplied water­tight connections. See Fig. 17.

A 4-5/32 in. hole for field power wiring and a 7/8-in. hole
for 24 v control wiring are provided in the bottom of the
control box. Field-supplied couplings must be used when rout­ing wiring into the control box.

See Fig. 17 for recommended disconnect location.

Field Electrical Connections

IMPORTANT: The 48/50DK,DY,NB,NP units gener­ate, use, and can radiate radio frequency energy. If units
are not installed and used in accordance with these
instructions, they may cause radio interference. They
have been tested and found to comply with limits of a
Class A computing device as defined by FCC (Federal
Communications Commission) regulations, Subpart J
of Part 15, which are designed to provide reasonable
protection against such interference when operated in
a commercial environment.

Use care when drilling into corner post to avoid damage to con­denser coil.

Fig. 16 — Disconnect Location, 034 and 044 Units

(50 Series Vertical Discharge Unit Shown)

17

Use care when drilling into corner post to avoid damage to con­denser coil.

Fig. 17 — Disconnect Location, 054-074 Units

(50 Series Horizontal Discharge Shown)

POWER WIRING — Units are factory wired for the voltage
shown on the unit nameplate. The main terminal block is
suitable for use with aluminum or copper wires. Maximum
wire size is 3/0 AWG (American Wire Gage).

When installing units, provide a disconnect per NEC
(National Electrical Code) of adequate size (MOCP [Maxi­mum Overcurrent Protection] of unit is on the informative
plate). All field wiring must comply with NEC and all local
codes. Size wire based on MCA (Minimum Circuit Amps)
on the unit informative plate. See Fig. 18 for power wiring
connections to the unit power terminal block and equipment
ground.

Operating voltage to the compressor must be within the
voltage range indicated on the unit nameplate. Voltages be­tween phases must be balanced within 2%, and the current
must be balanced within 10%. See Tables 3-7 for unit elec­trical data.

LEGEND

EQUIP — Equipment
GND — Ground
NEC — National Electrical Code
TB — Terminal Block

Fig. 18 — Field Power Wiring Connections

Use the following formula to determine the percent

voltage imbalance.
% Voltage Imbalance

= 100 x

max voltage deviation from average voltage

average voltage

Example: Supply voltage is 460-3-60.

AB = 452 v
BC = 464 v
AC = 455 v

Average Voltage =

452 1 464 1 455

3

1371

=

3

457

=

Determine maximum deviation from average voltage:

(AB) 457 – 452=5v
(BC) 464 – 457=7v

(AC) 457 – 455=2v
Maximum deviation is 7 v.
Determine percent voltage imbalance:

% Voltage Imbalance = 100 x

7

457

= 1.53%

This amount of phase imbalance is satisfactory as it is be­low the maximum allowable 2%.

IMPORTANT: If the supply voltage phase imbalance
is more than 2%, contact local utility immediately.

Unit failure as a result of operation on improper line volt­age or excessive phase imbalance constitutes abuse and may
cause damage to electrical components.

18

Table 3 — Electrical Data, 034 Units

COMPR

VOLTAGE

RANGE

187-254 53.2 266.0 53.2 266.0 10.8

CV — Constant Volume
ETL — ETL Testing Laboratory
FLA — Full Load Amps
Hp — Nominal Horsepower
IFM — Indoor (Evaporator) Fan Motor
LRA — Locked Rotor Amps
MCA — Minimum Circuit Amps (for wire sizing)
MOCP — Maximum Overcurrent Protection
OFM — Outdoor (Condenser) Fan Motor
RLA — Rated Load Amps

*Electric heat available on 50 Series vertical discharge units.

†108 kW available on CV applications only.

NO. 1

RLA LRA RLA LRA

LEGEND

COMPR

NO. 2

OFM IFM

Total

FLA

10.0

15.0

20.0

208/230-3-60 (V-Ph-Hz)

BASE UNIT

ONLY

Hp FLA MCA MOCP

24.2/

7.5

22.0

30.8/

28.0

46.2/

42.0

59.4/

54.0

154.7/

152.5

161.3/

158.5

176.7/

172.5

191.4/

184.7

200/

200

200/

200

225/

225

250/

225

EXHAUST

FAN

TotalHpTotal

10.0 33.4/30.0 — — 188.1/182.5 225/225

15.0 48.4/44.0 — — 203.1/196.5 250/225

10.0 33.4/30.0 29/ 36 78.9/ 91.0 188.1/182.5 225/225

10.0 33.4/30.0 59/ 72 157.7/182.0 227.4/255.0 250/300

10.0 33.4/30.0 88/108† 236.6/273.0 326.0/368.8 350/400

15.0 48.4/44.0 29/ 36 78.9/ 91.0 203.1/196.5 250/225

15.0 48.4/44.0 59/ 72 157.7/182.0 227.4/255.0 250/300

15.0 48.4/44.0 88/108† 236.6/273.0 326.0/368.8 350/400

10.0 33.4/30.0 — — 194.7/188.5 225/225

15.0 48.4/44.0 — — 209.7/202.5 250/250

10.0 33.4/30.0 29/ 36 78.9/ 91.0 194.7/188.5 225/225

10.0 33.4/30.0 59/ 72 157.7/182.0 235.6/262.5 250/300

10.0 33.4/30.0 88/108 236.6/273.0 334.2/376.3 350/400

15.0 48.4/44.0 29/ 36 78.9/ 91.0 209.7/202.5 250/250

15.0 48.4/44.0 59/ 72 157.7/182.0 235.6/262.5 250/300

15.0 48.4/44.0 88/108† 236.6/273.0 334.2/376.3 350/400

10.0 33.4/30.0 — — 210.1/202.5 250/250

15.0 48.4/44.0 — — 225.1/216.5 250/250

10.0 33.4/30.0 29/ 36 78.9/ 91.0 210.1/202.5 250/250

10.0 33.4/30.0 59/ 72 157.7/182.0 254.9/280.0 300/350

10.0 33.4/30.0 88/108 236.6/273.0 353.5/393.8 400/400

15.0 48.4/44.0 29/ 36 78.9/ 91.0 225.1/216.5 250/250

15.0 48.4/44.0 59/ 72 157.7/182.0 254.9/280.0 300/350

15.0 48.4/44.0 88/108† 236.6/273.0 353.5/393.8 400/400

10.0 33.4/30.0 — — 224.8/214.7 250/250

15.0 48.4/44.0 — — 239.9/228.7 250/250

10.0 33.4/30.0 29/ 36 78.9/ 91.0 224.8/214.7 300/300

10.0 33.4/30.0 59/ 72 157.7/182.0 271.4/295.0 350/350

10.0 33.4/30.0 88/108† 236.6/273.0 370.0/408.8 450/450

15.0 48.4/44.0 29/ 36 78.9/ 91.0 239.9/228.7 300/300

15.0 48.4/44.0 59/ 72 157.7/182.0 271.4/295.0 350/350

15.0 48.4/44.0 88/108† 236.6/273.0 370.0/408.8 450/450

NOTES:

1. Electric resistance heaters are rated at 208/240 v, 480 v, or 575 v. To
determine heater capacity (kW) at unit operating voltage, multiply 240 v,
480 v, or 575 v capacity by appropriate multiplier below.

2. Boldface indicates 48 and 50 Series units. All other data is for 50 Series
units only.

FLA

6.0 21.2/20.0 — — 175.9/172.5 225/225

— — 29/ 36 78.9/ 91.0 154.7/152.5 200/200
— — 59/ 72 157.7/182.0 227.4/255.0 250/300
— — 88/108† 236.6/273.0 326.0/368.8 350/400

6.0 21.2/20.0 29/ 36 78.9/ 91.0 175.9/172.5 225/225

6.0 21.2/20.0 59/ 72 157.7/182.0 227.4/255.0 250/300

6.0 21.2/20.0 88/108† 236.6/ 273.0 326.0/368.8 350/400

6.0 21.2/20.0 — — 182.5/178.5 225/225

— — 29/ 36 78.9/ 91.0 161.3/158.5 200/200
— — 59/ 72 157.7/182.0 235.6/262.5 250/300
— — 88/108† 236.6/273.0 334.2/376.3 350/400

6.0 21.2/20.0 29/ 36 78.9/ 91.0 182.5/178.5 225/225

6.0 21.2/20.0 59/ 72 157.7/182.0 235.6/262.5 250/300

6.0 21.2/20.0 88/108† 236.6/273.0 334.2/376.3 350/400

6.0 21.2/20.0 — — 197.9/192.5 250/225

— — 29/ 36 78.9/ 91.0 176.7/172.5 250/250
— — 59/ 72 157.7/182.0 254.9/280.0 300/350
— — 88/108† 236.6/273.0 353.5/393.8 400/400

6.0 21.2/20.0 29/ 36 78.9/ 91.0 197.9/192.5 250/250

6.0 21.2/20.0 59/ 72 157.7/182.0 254.9/280.0 300/350

6.0 21.2/20.0 88/108† 236.6/273.0 353.5/393.8 400/400

6.0 21.2/20.0 — — 212.6/204.7 250/250

— — 29/ 36 78.9/ 91.0 191.4/184.7 300/300
— — 59/ 72 157.7/182.0 271.4/295.0 350/350
— — 88/108† 236.6/273.0 370.0/408.8 450/450

6.0 21.2/20.0 29/ 36 78.9/ 91.0 212.6/204.7 300/300

6.0 21.2/20.0 59/ 72 157.7/182.0 271.4/295.0 350/350

6.0 21.2/20.0 88/108† 236.6/273.0 370.0/408.8 450/450

HEATER kW

RATING

240

480

575

Electric heaters are tested and ETL approved at maximum
total external static pressure of 1.9 in. wg.

ELECTRIC

HEAT*

kW FLA MCA MOCP

MULTIPLICATION FACTORS

VOLTAGE

DISTRIBUTION

V-3-60

200
208
230
240

440
460
480

550
575
600

BASE UNIT WITH

EXHAUST FAN

AND/OR

ELECTRIC HEAT*

MULTIPLICATION

FACTOR

0.694

0.751

0.918

1.000

0.840

0.918

1.000

0.915

1.000

1.089

19

Table 3 — Electrical Data, 034 Units (cont)

460-3-60 (V-Ph-Hz)

COMPR

VOLTAGE

RANGE

414-508 28.8 120.0 28.8 120.0 5.4

NO. 1

RLA LRA RLA LRA

COMPR

NO. 2

OFM IFM

Total

Hp FLA MCA MOCP

FLA

7.5 11.0 81.2 100

10.0 14.0 84.2 110

15.0 21.0 91.2 110

20.0 27.0 97.2 125

BASE UNIT

ONLY

EXHAUST

FAN

TotalHpTotal

FLA

6.0 9.6 — — 90.8 110

10.0 15.2 — — 96.4 125

15.0 22.0 — — 103.2 125

— — 36 46.3 81.2 100
— — 72 93.0 130.0 150
— — 108† 139.0 187.5 200

6.0 9.6 36 46.3 90.8 110

6.0 9.6 72 93.0 130.0 150

6.0 9.6 108† 139.0 187.5 200

10.0 15.2 36 46.3 96.4 125

10.0 15.2 72 93.0 130.0 150

10.0 15.2 108† 139.0 187.5 200

15.0 22.0 36 46.3 103.2 125

15.0 22.0 72 93.0 130.0 150

15.0 22.0 108† 139.0 187.5 200

6.0 9.6 — — 93.8 110

10.0 15.2 — — 99.4 125

15.0 22.0 — — 106.2 125

— — 36 46.3 84.2 110
— — 72 93.0 133.7 150
— — 108† 139.0 191.2 200

6.0 9.6 36 46.3 93.8 110

6.0 9.6 72 93.0 133.7 150

6.0 9.6 108† 139.0 191.2 200

10.0 15.2 36 46.3 99.4 125

10.0 15.2 72 93.0 133.7 150

10.0 15.2 108† 139.0 191.2 200

15.0 22.0 36 46.3 106.2 125

15.0 22.0 72 93.0 133.7 150

15.0 22.0 108† 139.0 191.2 200

6.0 9.6 — — 100.8 125

10.0 15.2 — — 106.4 125

15.0 22.0 — — 113.2 125

— — 36 46.3 91.2 125
— — 72 93.0 142.5 175
— — 108† 139.0 200.0 200

6.0 9.6 36 46.3 100.8 125

6.0 9.6 72 93.0 142.5 175

6.0 9.6 108† 139.0 200.0 200

10.0 15.2 36 46.3 106.4 125

10.0 15.2 72 93.0 142.5 175

10.0 15.2 108† 139.0 200.0 200

15.0 22.0 36 46.3 113.2 125

15.0 22.0 72 93.0 142.5 175

15.0 22.0 108† 139.0 200.0 200

6.0 9.6 — — 106.8 125

10.0 15.2 — — 112.4 125

15.0 22.0 — — 119.2 125

— — 36 46.3 97.2 150
— — 72 93.0 150.0 200
— — 108† 139.0 207.5 225

6.0 9.6 36 46.3 106.8 150

6.0 9.6 72 93.0 150.0 200

6.0 9.6 108† 139.0 207.5 225

10.0 15.2 36 46.3 112.4 150

10.0 15.2 72 93.0 150.0 200

10.0 15.2 108† 139.0 207.5 225

15.0 22.0 36 46.3 119.2 150

15.0 22.0 72 93.0 150.0 200

15.0 22.0 108† 139.0 207.5 225

ELECTRIC

HEAT*

kW FLA MCA MOCP

BASE UNIT WITH

EXHAUST FAN

AND/OR

ELECTRIC HEAT*

20

Table 3 — Electrical Data, 034 Units (cont)

575-3-60 (V-Ph-Hz)

COMPR

VOLTAGE

RANGE

518-632 23.1 96.0 23.1 96.0 4.8

CV — Constant Volume
ETL — ETL Testing Laboratory
FLA — Full Load Amps
Hp — Nominal Horsepower
IFM — Indoor (Evaporator) Fan Motor
LRA — Locked Rotor Amps
MCA — Minimum Circuit Amps (for wire sizing)
MOCP — Maximum Overcurrent Protection
OFM — Outdoor (Condenser) Fan Motor
RLA — Rated Load Amps

*Electric heat available on 50 Series vertical discharge units.

†108 kW available on CV applications only.

NO. 1

RLA LRA RLA LRA

LEGEND

COMPR

NO. 2

OFM IFM

Total

FLA

BASE UNIT

ONLY

Hp FLA MCA MOCP

7.5 9.0 65.8 80

10.0 11.0 67.8 90

15.0 17.0 73.8 90

20.0 22.0 78.8 100

NOTES:

1. Electric resistance heaters are rated at 208/240 v, 480 v, or 575 v. To
determine heater capacity (kW) at unit operating voltage, multiply 240 v,
480 v, or 575 v capacity by appropriate multiplier below.

2. Boldface indicates 48 and 50 Series units. All other data is for 50 Series
units only.

EXHAUST

FAN

TotalHpTotal

10.0 12.2 — — 78.0 100

15.0 18.0 — — 83.8 100

10.0 12.2 36 36.0 78.0 100

10.0 12.2 72 72.0 101.3 110

10.0 12.2 108† 108.0 146.2 150

15.0 18.0 36 36.0 83.8 100

15.0 18.0 72 72.0 101.3 110

15.0 18.0 108† 108.0 146.2 150

10.0 12.2 — — 80.0 100

15.0 18.0 — — 85.8 100

10.0 12.2 36 36.0 80.0 100

10.0 12.2 72 72.0 103.7 110

10.0 12.2 108† 108.0 148.7 150

15.0 18.0 36 36.0 85.8 100

15.0 18.0 72 72.0 103.7 110

15.0 18.0 108† 108.0 148.7 150

10.0 12.2 — — 86.0 100

15.0 18.0 — — 91.8 110

10.0 12.2 36 36.0 86.0 100

10.0 12.2 72 72.0 111.2 125

10.0 12.2 108† 108.0 156.2 175

15.0 18.0 36 36.0 91.8 110

15.0 18.0 72 72.0 111.2 125

15.0 18.0 108† 108.0 156.2 175

10.0 12.2 — — 91.0 110

15.0 18.0 — — 96.8 110

10.0 12.2 36 36.0 91.0 110

10.0 12.2 72 72.0 117.5 150

10.0 12.2 108† 108.0 162.5 175

15.0 18.0 36 36.0 96.8 110

15.0 18.0 72 72.0 117.5 150

15.0 18.0 108† 108.0 162.5 175

HEATER kW

RATING

Electric heaters are tested and ETL approved at maximum
total external static pressure of 1.9 in. wg.

FLA

6.0 7.8 — — 73.6 90

— — 36 36.0 65.8 80
— — 72 72.0 101.3 110
— — 108† 108.0 146.2 150

6.0 7.8 36 36.0 73.6 90

6.0 7.8 72 72.0 101.3 110

6.0 7.8 108† 108.0 146.2 150

6.0 7.8 — — 75.6 90

— — 36 36.0 67.8 90
— — 72 72.0 103.7 110
— — 108† 108.0 148.7 150

6.0 7.8 36 36.0 75.6 90

6.0 7.8 72 72.0 103.7 110

6.0 7.8 108† 108.0 148.7 150

6.0 7.8 — — 81.6 100

— — 36 36.0 73.8 100
— — 72 72.0 111.2 125
— — 108† 108.0 156.2 175

6.0 7.8 36 36.0 81.6 100

6.0 7.8 72 72.0 111.2 125

6.0 7.8 108† 108.0 156.2 175

6.0 7.8 — — 86.6 100

— — 36 36.0 78.8 110
— — 72 72.0 117.5 150
— — 108† 108.0 162.5 175

6.0 7.8 36 36.0 86.6 110

6.0 7.8 72 72.0 117.5 150

6.0 7.8 108† 108.0 162.5 175

MULTIPLICATION FACTORS

240

480

575

ELECTRIC

HEAT*

kW FLA MCA MOCP

VOLTAGE

DISTRIBUTION

V-3-60

200
208
230
240

440
460
480

550
575
600

BASE UNIT WITH

EXHAUST FAN

AND/OR

ELECTRIC HEAT*

MULTIPLICATION

FACTOR

0.694

0.751

0.918

1.000

0.840

0.918

1.000

0.915

1.000

1.089

21

Table 4 — Electrical Data, 044 Units

208/230-3-60 (V-Ph-Hz)

COMPR

VOLTAGE

RANGE

187-254 69.2 345.0 69.2 345.0 16.2

NO. 1

RLA LRA RLA LRA

COMPR

NO. 2

OFM IFM

Total

Hp FLA MCA MOCP

FLA

24.2/

7.5

22.0

30.8/

10.0

28.0

46.2/

15.0

42.0

59.4/

20.0

54.0

BASE UNIT

ONLY

196.1/

193.9

202.7/

199.9

218.1/

213.9

231.3/

225.9

EXHAUST

FAN

TotalHpTotal

10.0 33.4/30.0 — — 229.5/223.9 250/250

15.0 48.4/44.0 — — 244.5/237.9 300/300

250/
250

10.0 33.4/30.0 29/ 36 78.9/ 91.0 229.5/223.9 250/250

10.0 33.4/30.0 59/ 72 157.7/182.0 229.5/255.0 250/300

10.0 33.4/30.0 88/108† 236.6/273.0 326.0/368.8 350/400

15.0 48.4/44.0 29/ 36 78.9/ 91.0 244.5/237.9 300/300

15.0 48.4/44.0 59/ 72 157.7/182.0 244.5/255.0 300/300

15.0 48.4/44.0 88/108† 236.6/273.0 326.0/368.8 350/400

10.0 33.4/30.0 — — 236.1/229.9 300/250

15.0 48.4/44.0 — — 251.1/243.9 300/300

250/
250

10.0 33.4/30.0 29/ 36 78.9/ 91.0 236.1/229.9 300/250

10.0 33.4/30.0 59/ 72 157.7/182.0 236.1/262.5 300/300

10.0 33.4/30.0 88/108† 236.6/273.0 334.2/376.3 350/400

15.0 48.4/44.0 29/ 36 78.9/ 91.0 251.1/243.9 300/300

15.0 48.4/44.0 59/ 72 157.7/182.0 251.1/262.5 300/300

15.0 48.4/44.0 88/108† 236.6/273.0 334.2/376.3 350/400

10.0 33.4/30.0 — — 251.5/243.9 300/300

15.0 48.4/44.0 — — 266.5/257.9 300/300

250/
250

10.0 33.4/30.0 29/ 36 78.9/ 91.0 251.5/243.9 300/300

10.0 33.4/30.0 59/ 72 157.7/182.0 254.9/280.0 300/350

10.0 33.4/30.0 88/108† 236.6/273.0 353.5/393.8 400/400

15.0 48.4/44.0 29/ 36 78.9/ 91.0 266.5/257.9 300/300

15.0 48.4/44.0 59/ 72 157.7/182.0 266.5/280.0 300/350

15.0 48.4/44.0 88/108† 236.6/273.0 353.5/393.8 400/400

10.0 33.4/30.0 — — 264.7/255.9 300/300

15.0 48.4/44.0 — — 279.7/269.9 300/300

300/
250

10.0 33.4/30.0 29/ 36 78.9/ 91.0 264.7/255.9 300/300

10.0 33.4/30.0 59/ 72 157.7/182.0 271.4/295.0 350/350

10.0 33.4/30.0 88/108† 236.6/273.0 370.0/408.8 450/450

15.0 48.4/44.0 29/ 36 78.9/ 91.0 279.7/269.9 300/300

15.0 48.4/44.0 59/ 72 157.7/182.0 279.7/295.0 350/350

15.0 48.4/44.0 88/108† 236.6/273.0 370.0/408.8 450/450

FLA

6.0 21.2/20.0 — — 217.3/213.9 250/250

— — 29/ 35 78.9/ 91.0 196.1/193.9 250/250
— — 59/ 72 157.7/182.0 227.4/255.0 250/300
— — 88/108† 236.6/273.0 326.0/368.8 350/400

6.0 21.2/20.0 29/ 36 78.9/ 91.0 217.3/213.9 250/250

6.0 21.2/20.0 59/ 72 157.7/182.0 227.4/255.0 250/300

6.0 21.2/20.0 88/108† 236.6/273.0 326.0/368.8 350/400

6.0 21.2/20.0 — — 223.9/219.9 250/250

— — 29/ 36 78.9/ 91.0 202.7/199.9 250/250
— — 59/ 72 157.7/182.0 235.6/262.5 250/300
— — 88/108† 236.6/273.0 334.2/376.3 350/400

6.0 21.2/20.0 29/ 36 78.9/ 91.0 223.9/219.9 250/250

6.0 21.2/20.0 59/ 72 157.7/182.0 235.6/262.5 250/300

6.0 21.2/20.0 88/108† 236.6/273.0 334.2/376.3 350/400

6.0 21.2/20.0 — — 239.3/233.9 300/300

— — 29/ 36 78.9/ 91.0 218.1/213.9 250/250
— — 59/ 72 157.7/182.0 254.9/280.0 300/350
— — 88/108† 236.6/273.0 353.5/393.8 400/400

6.0 21.2/20.0 29/ 36 78.9/ 91.0 239.3/233.9 300/300

6.0 21.2/20.0 59/ 72 157.7/182.0 254.9/280.0 300/350

6.0 21.2/20.0 88/108† 236.6/273.0 353.5/393.8 400/400

6.0 21.2/20.0 — — 252.5/245.9 300/300

— — 29/ 36 78.9/ 91.0 231.3/225.9 300/300
— — 59/ 72 157.7/182.0 271.4/295.0 350/350
— — 88/108† 236.6/273.0 370.0/408.8 450/450

6.0 21.2/20.0 29/ 36 78.9/ 91.0 252.5/245.9 300/300

6.0 21.2/20.0 59/ 72 157.7/182.0 271.4/295.0 350/350

6.0 21.2/20.0 88/108† 236.6/273.0 370.0/408.8 450/450

ELECTRIC

HEAT*

kW FLA MCA MOCP

BASE UNIT WITH

EXHAUST FAN

AND/OR

ELECTRIC HEAT*

22