Carrier 48HJD005-007 User Manual

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Page 1

48HJD005-007, 48HJE/HJF004-007

48HJL/HJM/HJN/HJG/HJH/HJK004-006 (LOW NOx)

Single-Package Rooftop Heating/Cooling

Installation, Start-Up and

Service Instructions

CONTENTS

Page

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28

Step 1 — Provide Unit Support . . . . . . . . . . . . . . . . . . . 1

•ROOF CURB

• SLAB MOUNT

Step 2 — Field Fabricate Ductwork . . . . . . . . . . . . . . . 3

Step 3 — Install External Trap for

Condensate Drain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Step 4 — Rig and Place Unit . . . . . . . . . . . . . . . . . . . . . 3

• POSITIONING

Step 5 — Install Flue Hood . . . . . . . . . . . . . . . . . . . . . . . 4

Step 6 — Install Gas Piping . . . . . . . . . . . . . . . . . . . . . . 4

Step 7 — Make Electrical Connections . . . . . . . . . . . 4

• FIELD POWER SUPPLY

• FIELD CONTROL WIRING

• HEA T ANTICIPATOR SETTINGS

Step 8 — Adjust Factory-Installed Options . . . . . . . 8

• MOISTUREMISER DEHUMIDIFCATION PACKAGE

• APOLLO CONTROL

• DISCONNECT SWITCH

• OPTIONAL DURABLADE ECONOMIZER

• OPTIONAL ECONOMI$ER

Step 9 — Adjust Evaporator-Fan Speed . . . . . . . . . 19

• BELT-DRIVE MOTORS

PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29-32

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-38

TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . 39-45

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

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 func-

tions 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 li terature, ta gs and label s attached t o the uni t, and other safety precautions that may apply.

Follow all safety codes. Wear safety glasses and work

gloves. Use quenching cloth for unbrazing operations. Have fire extinguishers available for all brazing operations.

Before performing service or maintenance operations on unit, turn off main power switch to unit and insta ll lockout tag. Ensure electrical service to rooftop unit agrees with voltage and amperage listed on the unit rating plate. Electrical shock could cause personal injury.

Disconnect gas piping from unit when leak testing at pressure greater than 1/2 psig. Pressures greater than damage resulting in hazardous condition. If gas valve is subjected to pressure greater than

psig, it

pressure testing field-supplied gas piping at pressures of to such piping must be isolated by manually closing the gas valve(s).

/2 psig will cause gas valve

must

be replaced before use. When

/2 psig or less, a unit connected

INSTALLATION

Unit is shipped in the vertical discharge configuration. To convert to horizontal discharge application, remove duct opening covers. Using the same screws, install covers on duct openings in basepan of unit with insulation-side down. Seals around openings must be tight.

NOTE: Any combination of supply and return ducting is permissible, i.e., vertical supply combined with horizontal return.

Step 1 — Provide Unit Support

ROO F CU R B — Assemble and instal l acces sory roof curb in accordance with instructions shipped with curb. See Fig. 1. Install insulation, cant strips, roofing felt, and counter flashing as shown. If electric control power or gas service is to be routed through the basepan, attach the accessory thru-the-bottom service connections to the basepan in accordance with the accessory installation instructions. Connections must be installed before unit is set on roof curb.

Fig. 2. This is necessary for unit drain to function properly. Refer to Accessory Roof Curb Installation Instructions for additional information as required.

SLAB MOUNT (Horizontal Units Only) — Provide a level concrete slab that extends a minimum of 6 in. beyond unit cabinet. Install a gravel apron in front of condenser-coil air inlet to prevent grass and foliage from obstructing airflow.

NOTE: Horizontal units may be installed on a roof curb if required.

Ductwork must be attached to curb, not to the unit.

IMPORTANT: The gasketing of th e unit to the roof curb

is critical for a watertight seal. Install gasket supplied

with the roof curb as shown in Fig. 1. Improperly

applied gasket can result in air leaks and poor unit

performance.

Curb should be level. Unit leveling tolerances a re shown in

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

Book 1 4 Ta b 1 a 6 a

PC 111 Catalog No. 534-767 Printed in U.S.A. Form 48HJ-18SI Pg 1 9-00 Replaces: 48HJ-17SI

Page 2

48/50HJ

UNIT SIZE

“A”

ROOF CURB

ACCESSORY

004-007

CRRFCURB001A00 1′-2″ [356]

CRRFCURB002A00 2′-0″ [610]

CONNECTOR

“G”

“F”

“E”

D ALT

PKG. ACCY.

CRBTMPWR001A00

CRBTMPWR003A00

″

[12.7] NPT

CONTROL

″ [19] NPT

POWER

″

GAS

[12.7] NPT

″ [31.7] CRBTMPWR002A00 /

[19] NPT

″ [31.7] CRBTMPWR004A00

″ [19] NPT

″

[19] NPT

[12.7] NPT

″

[44.5]

and 002A00 are for thru-the-curb connec-

tions. Packages CRBTMP003A00 and

6. Service clearance 4 ft on each side.

7. Direction of airflow.

004A00 are for thru-the-bottom connections.

8. Connector packages CRBTMPWR001A00

Fig. 1 — Roof Curb Details

DRAIN HOLE

1′-4″

[406]

″

[551]

1′-9

UNIT SIZE B C

50HJF004-007

48HJD004-007

NOTES:

disassembled.

1. Roof curb accessory is shipped

rest on curb).

2. Insulated panels.

3. Dimensions in [ ] are in millimeters.

4. Roof curb: galvanized steel.

5. Attach ductwork to curb (flanges of duct

Page 3

MAXIMUM ALLOWABLE

DRAIN PLUG

CONDENSATE PAN (SIDE VIEW)

NOTE: Drain plug is shown in factory-installed position.

Fig. 3 — Condensate Drain Pan

DIFFERENCE (in.)

A-B B-C A-C

0.5 1.0 1.0

Fig. 2 — Unit Leveling Tolerances

Step 2 — Field Fabricate Ductwork —

Secure all

ducts to roof curb and building structure on vertical discharge

Do not connect ductwork to unit.

units.

For horizontal applications, field-supplied isolation flanges should be attached to horizontal discharge openings and all ductwork should be secured to the flanges. Insulate and weatherproof all external ductwork, joints, and roof openings with counter flashing and mastic in accordance with applicable codes.

Ducts passing through an unconditioned space must be in-

sulated and covered with a vapor barrier.

If a plenum return is used on a vertical unit, the return should be ducted through the roof deck to comply with applicable fire codes.

A minimum clearance is not required around ductwork. Cabinet return-air static shall not exceed –.35 in. wg with Durablade economizer, or –.30 in. wg with EconoMi$er, or –.45 in. wg without economizer.

These units are designed for a minimum continuous returnair temperature in heating of 50 F (dry bulb), or an intermittent operation down to 45 F (dry bulb), such a s when used with a night setback thermostat.

Step 3 — Install External Trap for Condensate Drain —

located on the bottom and side of the unit. Unit discharge connections do not determine the use of drain connections; either drain connection can be used with vertical or horizontal applications.

When using the standard side drain connection, ensure the plug (Red) in the alternate bottom connection is tight before installing the unit.

To use the bottom drai n connec tion for a roof curb i nstallation, relocate the factory-installed plug (Red) from the bottom connection to the side connection. See Fig. 3. The piping for the condensate drain and external trap can be completed after the unit is in place.

All units must have an external trap for condensate drainage. Install a trap 4-in. deep and protect against freeze-up. If drain line is installed downst ream from the ext ernal t rap, pitch the line away from the unit at 1 in. per 10 ft of run. Do not use a pipe size smaller than the unit connection (

Step 4 — Rig and Place Unit —

transportation damage, and file any claim w ith transportation agency. Keep unit upright and do not drop. Spreader bars are not required if top crating is left on unit, and rollers may be used to move unit across a roof. Level by using unit frame as a

The unit’s 3/4-in. condensate drain connections are

/4 in.).

Inspect unit for

reference. See Table 1 and Fig. 4 for additional information. Operating weight is shown in Table 1 and Fig. 4.

Lifting holes are provided in base rails as shown in Fig. 5.

Refer to rigging instructions on unit.

All panels must be in place when rigging and lifting.

POS ITION ING — Maintain cl earan ce around and a bove unit to provide minimum distance from combustible materials, proper airflow, and service access. See Fig. 5. A properly positioned unit will have the following clearances between unit and roof

/4-in. clearance between roof curb and base rails on each

curb; side and duct end of unit;

/4 in. clearance between roof curb and

condenser coil end of unit. (See Fig. 1, section C-C.)

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

Be sure that unit is installed such that snow will not block the combustion intake or flue outlet.

Unit may be installed directly on wood flooring or on Class A, B, or C roof-covering material when roof curb is used.

Although unit is weatherproof, guard against water from higher level runoff and overhangs.

Locate mechanical draft system flue assembly at least 48 in. from any opening through which combustion products could enter the building, and at least 48 in. from an adjacent building. When unit is located adjacent to public walkways, flue assembly must be at least 7 ft above grade.

NOTE: When unit is equipped with an accessory flue discharge deflector, allowable clearance is 18 inches.

Flue gas can deteriorate building materials. Orient unit such that flue gas will not affect building materials.

Adequate combustion-air space must be provided for proper operation of this equipment. Be sure that installation complies with all local codes and Section 5.3, Air for Combustion and Ventilation, NFGC (National Fuel Gas Code), ANSI (American National Standards Institute) Z223.1-1984 and addendum Z223.1a-1987. In Canada, installation must be in ac cordance with the CAN1.B149.1 and CAN1.B149.2 installation codes for gas burning appliances.

Flue vent discharge must have a minimum horizontal clearance of 4 ft from electric and gas meters, gas regulators, and gas relief equipment.

After unit is in position, remove shipping materials and rigging skids.

Page 4

NOTES:

1. Place unit on curb as close as possible to the duct end.

2. Dimension in ( ) is in millimeters.

3. Hook rigging shackles through holes in base rail as shown in detail ‘‘A.’’ Holes in base rails are centered around the unit center of gravity. Use wooden top skid when rigging to prevent rigging straps from damaging unit.

4. Weights include base unit without economizer. See Table 1 for unit operating weights with accessory economizer.

All panels must be in place when rigging.

Fig. 4 — Rigging Details

UNIT 48HJ

004 005 006 007

MAX

WEIGHT

lb kg in. mm in. mm in. mm

530 240 73.69 1872 35.50 902 33.31 847 540 245 73.69 1872 35.50 902 33.31 847 560 254 73.69 1872 35.50 902 33.31 847 615 279 73.69 1872 35.50 902 33.31 847

“A” “B” “C”

Step 5 — Install Flue Hood —

Flue hood is shipped screwed to the burner compartment access panel. Remove from shipping location and, using screws provided, install flue hood in location shown in Fig. 5 and 6.

For units being installed in California Air Quality Manage-

ment Districts which require NO

emissions of 40 nanograms/

joule or less, kit CRLOWNOX001A00 must be installed.

Step 6 — Install Gas Piping —

Unit is equipped for use with type of gas shown on nameplate. Refer to local building codes, or in the absence of local codes, to ANSI Z223.1-1984 and addendum Z223.1A-1987 entitled National Fuel Gas Code. In Canada, installation must be in accordance with the CAN1.B149.1 and CAN1.B149.2 installation codes for gas burning appliances.

For natural gas applications, gas pressure at unit gas c onnection must not be less than 4 in. wg or greater than 13 in. wg while the unit is operating. On 48HJ005-007 high-heat units, the gas pressure at unit gas connection must not be less than 5 in. wg or greater than 13 in. wg while the unit i s operating. For propane applications, the gas pressure must not be less than 5 in. wg or greater than 13 in. wg at the unit connection.

Size gas supply piping for 0.5 in. wg maximum pressure drop. Do not use supply pipe smaller than unit gas connection.

Support gas piping as shown in the table in Fig. 7. For example, a

/4-in. gas pipe must have one field-fabricated support beam every 8 ft. Therefore, an 18-ft long gas pipe would have a minimum of 3 support beams, and a 48-ft long pipe would have a minimum of 6 support beams.

See Fig. 7 for typical pipe guide and locations of external

manual gas shutoff valve.

Step 7 — Make Electrical Connections

Unit cabinet must have an uninterrupted, unbroken electrical ground to minimize the possibility of personal injury if an electrical fault should occur. This ground may consist of electrical wire connected to unit ground lug in control compartment, or conduit approved for electrical ground when installed in accordance with NEC (National Electrical Code), ANSI/NFPA (National Fire Protection Association), latest edition, and local electrical code s.

gas piping as an electrical ground.

Failure to fo llow this warning could result in the installer being liable for personal injury of others.

FIELD PO WER S UPPLY — All units except 208/230-v units are factory wired for the voltage shown on the nameplate. If the 208/230-v unit is to be connected to a 208-v power supply, the transformer

must

be rewired by moving the black wire from the 230-v terminal on the transformer and connecting it to the 200-v terminal from the transformer.

Refer to unit label diagram for additional information. Pigtails are provided for field service. Use factory-supplied splices or UL (Underwriters’ Laboratories) approved copper connector.

When installing units, provide a disconnect per NEC.

All field wiring must comply with NEC and local requirements.

Do not use

Page 5

Table 1 — Physical Data

BASE UNIT 48 HJE/F/H/K/M/N004 HJD/E/F/G/H/K/L/M/N005 HJD/E/F/G/H/K/L/M/N006 HJD/HJE/HJF007 NOMINAL CAPACITY OPERATING WEIGHT (lb)

Unit With Durablade Economizer With EconoMi$er With MoistureMiser Dehumidification Package Roof Curb

COMPRESSOR

Quantity Oil (oz)

REFRIGERANT TYPE

Operating Charge (lb-oz) Standard Unit Unit With MoistureMizer Dehumidification Package

CONDENSER FAN

Quantity...Diameter (in.) Nominal Cfm Motor Hp...Rpm Watts Input (Total)

CONDENSER COIL

Standard Unit

Rows...Fins/in. Total Face Area (sq ft)

Unit with MoistureMiser Dehumidification Package

Rows...Fins/in. Total Face Area (sq ft)

EVAPORATOR FAN

Quantity...Size (in.) Nominal Cfm Maximum Continuous Bhp Std

Motor Frame Size Std

Fan Rpm Range Std

Motor Bearing Type Maximum Fan Rpm Motor Pulley Pitch Diameter

A/B (in.)

Nominal Motor Shaft Diameter (in.) Std

Fan Pulley Pitch Diameter (in.) Std

Belt — Type...Length (in.) Std

Pulley Center Line Distance (in.) Speed Change per Full Turn of

Movable Pulley Flange (rpm)

Movable Pulley Maximum Full

Turns from Closed Position

Factory Setting — Full Turns Open Std

Factory Speed Setting (rpm) Std

Fan Shaft Diameter at Pulley (in.)

EVAPORATOR COIL

Rows...Fins/in. Total Face Area (sq ft)

Hi-Static

Std

Hi-Static

Std

Hi-Static

Std

Hi-Static

LEGEND *Single phase/three phase.

Bhp —

Brake Horsepower

34 5 6

530 540 560 615 564 574 594 649 577 587 607 662 548 558 578 633 115 115 115 115

11 1 1

42 53 50 60

Scroll

R-22

5- 8 8-6 10- 0 9-10 8-13 11-2 12-13 13- 6

1...22 1...22 1..22 1...22 3500 3500 4100 4100

/4...825

180 180 320 320

/4...825

Propeller

/4...1100

Enhanced Copper Tubes, Aluminum Lanced Fins

1...17 2..17 2...17 2...17

14.6 16.5 16.5 16.5

1...17 1...17 1...17 1...17

3.9 3.9 3.9 3.9

1...10 x 10 1...10 x 10 1...10 x 10 1...10 x 10 1200 1600 2000 2400

1.20 1.20 1.30/2.40* 2.40

2.40 2.40 2.90 2.90 48 48 48/56* 56 56 56 56 56

760-1090 840-1185 1020-1460/1120-1585* 1120-1585

1075-1455 1075-1455 1300-1685 1300-1685

Ball Ball Ball Ball

2100 2100 2100 2100

1.9/2.9 1.9/2.0 2.4/3.4 2.4/3.4

2.8/3.8 2.8/3.8 3.4/4.4 3.4/3.4

4.5 4.0 4.0 4.0

4.5 4.0 4.5 4.5

1...A...33 1...A...33 1....4...40 1...A...38

1...A...39 1...A...39 1...A...40 1...A...40

10.0-12.4 10.0-12.4 14.7-15.5 14.7-15.5 65 70 75 95 65 65 60 60

55 6 5 66 5 5 33 3 3

890 980 1240 1304

1233 1233 1396 1396

Enhanced Copper Tubes, Aluminum Double-Wavy Fins, Acutrol™ Metering Device

2...15 2...15 4...15 4...15

5.5 5.5 5.5 5.5

†Indicates automatic reset.

**48HJD005-007 and 48HJE004 (72,000 Btuh heat input) units have 2 burners.

48HJE005-007 and 48HJF004 (115,000 Btuh heat input) units and 48HJF005007 (150,000 Btuh Heat input) units have 3 burners.

††An LP kit is available as an accessory.

||Three-phase standard models have heating inputs as shown. Single-phase

standard models have one-stage heating with heating input values as follows:

***California compliant three-phase models.

†††California SCAQMD compliant low NO

are controlled to 40 nanograms per joule or less.

Centrifugal Type, Belt Drive

31/

48HJE004, 48HJD005,006 — 72,000 Btuh 48HJF004, 48HJE005,006 — 115,000 Btuh 48HJF005,006 — 150,000 Btuh

31/

models have combustion products that

31/

Page 6

Table 1 — Physical Data (cont)

BASE UNIT 48 HJE/F/H/K/M/N004 HJD/E/F/G/H/K/L/M/N005 HJD/E/F/G/H/K/L/M/N006 HJD/HJE/HJF007 FURNACE SECTION

Rollout Switch Cutout Temp (F)†

Burner Orifice Diameter (in. ...drill size)**

Natural Gas — Std HJE

Liquid Propane — Alt††

Thermostat Heat Anticipator Setting (amps) 208/230/460 v

First Stage Second Stage

Gas Input (Btuh)

First Stage/Second Stage HJE

Efficiency (Steady State) (%)

Temperature Rise Range

Manifold Pressure (in. wg)

Natural Gas — Std

Liquid Propane — Alt†† Maximum Static Pressure (in. wg) Field Gas Connection Size (in.)

HIGH-PRESSURE SWITCH (psig)

Standard Compressor Internal Relief Cutout Reset (Auto.)

LOSS-OF-CHARGE SWITCH/LOW-PRESSURE

SWITCH (Liquid LIne) (psig) Cutout Reset (Auto.)

FREEZE PROTECTION THERMOSTAT

Opens (F) Closes (F)

OUTDOOR-AIR INLET SCREENS

Quantity...Size (in.)

RETURN-AIR FILTERS

Quantity...Size (in.)

LEGEND *Single phase/three phase.

Bhp —

Brake Horsepower

195 195 195 195

.113...33

HJF

.113...33

HJH HJK

HJM HJN

HJE HJF

HJH HJK

HJM HJN

HJF

HJH HJK

HJM HJN

HJE HJF

HJH HJK

HJM HJN

HJE HJF

HJH HJK

HJM HJN

—

.113...33 .113...33

—

.102...38

—

.089...43 .089...43

—

.082...45 .082...45

—

.082...45

—

.14 .14 .14 .14 .14 .14 .14 .14

|| 50,000/ 72,000 || 82,000/115,000

—

*** —/ 72,000 ***—/115,000

—

††† —/ 60,000

††† —/ 90,000

—

82 81

—

82 81

—

15-45 55-85

—

15-45 55-85

—

20-50

30-60

—

3.5 3.5 3.5 3.5

1.0 1.0 1.0 1.0

HJD

.113...33

HJE

.113...33

HJF

.129...30

HJG

.113...33

HJH

.113...33

HJK

.129...30

HJL

.102...38

HJM

.102...38

HJN

.116...32

HJD

.089...43

HJE

.089...43

HJF

.102...38

HJG

.089...43

HJH

.089...43

HJK

.102...38

HJL

.082...45

HJM

.082...45

HJN

.094...42

HJD

|| 50,000/ 72,000

HJE

|| 82,000/115,000

HJF

|| 120,000/150,000

HJG

*** —/ 72,000

HJH

*** —/115,000

HJK

*** —/150,000

HJL

††† —/ 60,000

HJM

††† —/ 90,000

HJN

††† —/120,000

HJD

HJE

HJF

HJG

HJH

HJK

HJL

HJM

HJN

HJD

15-45

HJE

35-65

HJF

50-80

HJG

15-45

HJH

35-65

HJK

50-80

HJL

20-50

HJM

30-60

HJN

40-70

†Indicates automatic reset.

**48HJD005-007 and 48HJE004 (72,000 Btuh heat input) units have 2 burners.

48HJE005-007 and 48HJF004 (115,000 Btuh heat input) units and 48HJF005007 (150,000 Btuh Heat input) units have 3 burners.

††An LP kit is available as an accessory.

||Three-phase standard models have heating inputs as shown. Single-phase

standard models have one-stage heating with heating input values as follows:

48HJE004, 48HJD005,006 — 72,000 Btuh 48HJF004, 48HJE005,006 — 115,000 Btuh 48HJF005,006 — 150,000 Btuh

***California compliant three-phase models.

†††California SCAQMD compliant low NO

are controlled to 40 nanograms per joule or less.

HJD HJE HJF

HJG HJH HJK

HJL HJM HJN

HJD HJE HJF

HJG HJH HJK

HJL HJM HJN

HJD HJE HJF

HJG HJH HJK

HJL HJM HJN

HJD HJE HJF

HJG HJH HJK

HJL HJM HJN

HJD HJE HJF

HJG HJH HJK

HJL HJM HJN

450 ± 50

428 320

7 ± 3

22 ± 5

30 ± 5 45 ± 5

Cleanable

1...20 x 24 x 1 Throwaway

2...16 x 25 x 2

.113...33 .113...33

.129...30

.113...33 — .113...33 — .129...30 —

.102...38 —

.116...32 —

.089...43 .089...43 .102...38

.089...43 —

.102...38 — .082...45 —

.082...45 —

.094...42 —

|| 50,000/ 72,000 || 82,000/115,000 || 120,000/150,000

*** —/ 72,000 —

*** —/115,000 —

*** —/150,000 — ††† —/ 60,000 —

†††—/ 90,000 —

††† —/120,000 —

82 81 80

82 —

81 —

80 — 81 —

81 —

82 —

15-45 35-65 50-80

15-45 —

35-65 —

50-80 — 20-50 —

30-60 —

40-70 —

models have combustion products that

HJD

.113...33

HJE

.113...33

HJF

.129...30

HJD

.089...43

HJE

.089...43

HJF

.102...38

HJD

|| 50,000/ 72,000

HJE

|| 82,000/115,000

HJF

|| 120,000/150,000

HJD

HJE

HJF

HJD

15-45

HJE

35-65

HJF

50-80

Page 7

STANDARD

UNIT 48HJ

004 005 006 007

A B C D E

UNIT

WEIGHT

Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg

530 240 34 15.4 47 21.3 127 57.6 122 55.3 138 62.6 143 64.9 540 245 34 15.4 47 21.3 129 58.5 124 56.2 141 64.0 146 66.2 560 254 34 15.4 47 21.3 134 60.8 129 58.5 146 66.2 151 68.5 615 279 34 15.4 47 21.3 147 66.7 142 64.4 160 72.6 166 75.3

CONNECTION SIZES

13/

Dia [35] Field Power Supply Hole

″″″″

Dia [51] Power Supply Knockout

″″″″

13/

Dia [44] Charging Por t Hole

″″″″

Dia [22] Field Control Wiring Hole

″″″″

-14 NPT Condensate Drain

″″″″

-14 NPT Gas Connection

″″″″

21/

Dia [64] Power Supply Knockout

″″″″

DURABLADE

ECONOMIZER

WEIGHT

ECONOMI$ER

WEIGHT

CORNER

WEIGHT

(A)

CORNER

WEIGHT

CORNER

WEIGHT

(B)

NOTES:

1. Dimensions in [ ] are in millimeters.

(C)

CORNER WEIGHT

(D)

BOTTOM POWER CHART, THESE HOLES REQUIRED FOR

USE WITH ACCESSORY PACKAGES — CRBTMPWR001A00

THREADED

CONDUIT SIZE

*Select either 3/

†Select either 1/

THROUGH CRBTMPWR004A00

WIRE

″″″″

11/

″″″″

NPT

″″″″

NPT

USE

24 V Pow er* 11/ Pow er* 13/

Gas† 11/ Gas† 15/

or 11/

for power, depending on wire size.

″

or 3/

for gas depending on gas connection.

″

REQURED

HOLE SIZES (MAX.)

[22.2]

″″″″

[28.4]

″″″″

″

″ ″

[31.8]

″″″″

[41.3]

″″″″

2. Center of gravity.

3. Direction of airflow.

4. On vertical discharge units, ductwork to be attached to accessory roof curb only. For horizontal discharge units, field-supplied flanges should be attached to horizontal discharge openings, and all ductwork should be attached to the flanges.

5. Minimum clearance (local codes or jurisdiction may prevail): a. Between unit, flue side and combustible surfaces, 48 inches. (18 in. when using accessory flue

discharge deflector.)

b. Bottom of unit to combustible surfaces (when not using curb), 1 inch.

Bottom of base rail to combustible surfaces (when not using curb) 0 inches.

c. Condenser coil, for proper airflow, 36 in. one side, 12 in. the other. The side getting the greater

clearance is optional. d. Overhead, 60 in. to assure proper condenser fan operation. e. Between units, control box side, 42 in. per NEC (National Electrical Code). f. Between unit and ungrounded surfaces, control box side, 36 in. per NEC. g. Between unit and block or concrete walls and other grounded surfaces, control box side, 42 in.

per NEC. h. Horizontal supply and return end, 0 inches.

6. With the exception of the clearance for the condenser coil and combustion side as stated in notes 5a, b and c, a removable fence or barricade requires no clearance.

7. Units may be installed on combustible floors made from wood or Class A, B, or C roof covering material if set on base rail.

8. The ver tical center of gravity is 1′-6″ [457] up from the bottom of the base rail.

[44.4]

Fig. 5 — Base Unit Dimensions — 48HJ004-007

Page 8

Fig. 6 — Flue Hood Details

LEGEND

NFGC —

*Field supplied. NOTE: Follow all local codes.

National Fuel Gas Code

SPACING OF SUPPORTS

STEEL PIPE

NOMINAL DIAMETER

(in.)

or 1

or larger

SPACING OF SUPPORTS

X DIMENSION

(ft)

6 8

Fig. 7 — Gas Piping Guide (With Accessory

Thru-the-Curb Service Connections)

Install conduit through side panel openings indicated in Fig. 5. Route power lines through connector to terminal connections as shown in Fig. 8.

Voltage to compressor terminals during operation must be within voltage range indicated on unit nameplate (also see Tables 2A-2D). On 3-phase units, voltages between phases must be balanced within 2% and the current within 10%. Use the formula shown in Tables 2A-2D, Note 2 to determine the percent voltage imbalance. Operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause damage to electrical components. Such operation would invalidate any applicable Carrier warranty.

NOTE: If accessory thru-the-bottom connections and roof curb are used, refer to the Thru-the-Bottom Accessory Installation Instructions for information on power wiring and gas connection piping. The power wiring, control wiring and ga s piping can be routed through field-drilled holes in the basepan. The basepan is specially designed and dimpled for drilling the access connection holes.

FIELD CONTR OL WIRING — Install a Carrier-approved accessory thermostat assembly according to installation instructions included with the accessory. Locate thermostat assembly on a solid wall in the conditioned space to sense average temperature in accordance with thermostat installation instructions.

Route thermostat cable or equivalent single leads of colored wire from subbase terminals through connector on unit to lowvoltage connections (shown in Fig. 9).

Connect thermostat wires to matching screw terminals of low-voltage connection board. See Fig. 9.

NOTE: For wire runs up to 50 ft, use no. 18 AWG (American Wire Gage) insulated wire (35 C minimum). For 50 to 75 ft , use no. 16 AWG insulated wire (35 C minimum). For over 75 ft, use no. 14 AWG insulated wire (35 C minimum). All wire larger than no. 18 AWG cannot be directl y connected to the thermostat and will require a junction box and splice at the thermostat.

Pass the control wires through the hole provided in the corner post; then feed wires through the raceway built into the corner post to the 24-v barrier located on the left side of the control box. See Fig. 10. The raceway provides the UL required clearance between high- and low-voltage wiring.

HEAT ANTICIPATOR SETTINGS — Set heat anticipator settings at .14 amp for first stage and .14 for second stage heating, when available.

Step 8 — Adjust Factory-Installed Options

MOISTUREMISER DEHUMIDIFICATION PACKAGE — MoistureMiser package operation can be controlled by field installation of a Carrier-approved humidistat (Fig. 11). To install the humidistat:

1. Route humidistat cable through hole provided in unit corner post.

2. Feed wires through the raceway built into t he corner post to the 24-v barrier located on the left side of the control box. See Fig. 10. The raceway provides the UL-required clearance between high- and low-voltage wiring.

3. Use a wire nut to connect humidistat cable into lowvoltage wiring as shown in Fig. 12.

APOLLO CONTROL — The optional Apollo control is used to actively monitor all modes of operation as well as indoor (evaporator) fan status, filter status, and indoor-air quality. The Apollo control is designed to work with Carrier TEMP and

systems.

VVT

The thermostat must be wired to the Apollo Control before starting the unit. Refer to the Apollo Control installation instructions for information on installing the thermostat.

DISCONNECT SWITCH — The optional disconnect switch is non-fused. The switch has the capability of being locked in place for safety purposes.

Page 9

RACEWAY LOW VOLTAGE

CONNECTIONS

INTEGRATED GAS UNIT CONTROLLER (IGC)

HOLE IN END PANEL (HIDDEN)

LEGEND

C— COMPS — EQUIP — GND — IFC —

NEC — TB —

Contactor Compressors Equipment Ground Indoor (Evaporator) Fan Contactor National Electrical Code Terminal Block

LEGEND

AHA — CC — TC — TH —

NOTE: Connect Y2 when unit is equipped with an integrated economizer.

Adjustable Heat Anticipator Cooling Compensator Thermostat-Cooling Thermostat-Heating Field Wiring Factory Wiring

Fig. 8 — Power Wiring Connections

Fig. 10 — Field Control Wiring Raceway

Fig. 9 — Low-Voltage Connections With or

Without Economizer

Page 10

Table 2A — 48HJ Electrical Data Standard Motor (Units Without Electrical Convenience Outlet)

UNIT 48HJ

004

(3 Tons)

005

(4 Tons)

006

(5 Tons)

007

(6 Tons)

NOMINAL

VOLTAGE (V-Ph-Hz)

208/230-1-60 187 254 16.0 88.0 0.7 4.9 .57 25.6/25.6 35/35 25/25 101/101 208/230-3-60 187 254 10.3 77.0 0.7 4.9 .57 18.5/18.5 25/25 18/18 90/ 90

460-3-60 414 508 5.1 39.0 0.4 2.2 .30 9.0 15 9 46

575-3-60 518 632 4.2 31.0 0.4 2.2 .30 7.3 15 7 36 208/230-1-60 187 254 23.7 129.0 0.7 4.9 .57 35.2/35.2 45/45 34/34 142/142 208/230-3-60 187 254 13.5 99.0 0.7 4.9 .57 22.5/22.5 30/30 22/22 112/112

460-3-60 414 508 7.4 49.5 0.4 2.2 .30 11.9 15 12 56

575-3-60 518 632 5.8 40.0 0.4 2.2 .30 9.3 15 9 45 208/230-1-60 187 254 28.8 169.0 1.5 8.8 .57 46.3/46.3 60/60 45/45 216/216 208/230-3-60 187 254 17.3 123.0 1.5 5.8 .57 28.9/28.9 35/35 28/28 168/168

460-3-60 414 508 9.0 62.0 0.8 2.6 .30 14.7 20 14 84

575-3-60 518 632 7.1 50.0 0.8 2.6 .30 11.6 15 11 67 208/230-3-60 187 254 20.5 156.0 1.4 5.8 .57 32.8/32.8 40/40 32/32 200/200

460-3-60 414 508 9.6 70.0 0.6 2.6 .30 15.2 20 15 92

575-3-60 518 632 7.7 56.0 0.6 2.6 .30 12.2 15 13 78

VOLTAGE

RANGE

Min Max RLA LRA FLA FLA FLA MCA MOCP† FLA LRA

COMPRESSOR OFM IFM

Table 2B — 48HJ Electrical Data Standard Motor (Units With Electrical Convenience Outlet)

UNIT 48HJ

004

(3 Tons)

005

(4 Tons)

006

(5 Tons)

007

(6 Tons)

FLA — HACR— IFM — LRA — MCA — MOCP— NEC — OFM — RLA — UL —

*Used to determine minimum disconnect per NEC.

†Fuse or HACR circuit breaker.

NOTES:

1. In compliance with NEC requirements for multimotor and combi-

Full Load Amps Heating, Air Conditioning and Refrigeration Indoor (Evaporator) Fan Motor Locked Rotor Amps Minimum Circuit Amps Maximum Overcurrent Protection National Electrical Code Outdoor (Condenser) Fan Motor Rated Load Amps Underwriters’ Laboratories

nation load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device for the unit shall be fuse or HACR breaker. UL, Canada units may be fuse or circuit breaker.

Unbalanced 3-Phase Supply Voltage

Never operate a motor where a phase imbalance in supply voltage is greater than 2%.

the percent of voltage imbalance.

= 100 x

max voltage deviation from average voltage

NOMINAL

VOLTAGE (V-Ph-Hz)

208/230-1-60 187 254 16.0 88.0 0.7 4.9 .57 31.6/31.6 40/40 30/30 106/106 208/230-3-60 187 254 10.3 77.0 0.7 4.9 .57 24.5/24.5 30/30 24/24 95/95

460-3-60 414 508 5.1 39.0 0.4 2.2 .30 11.7 15 11 48

575-3-60 518 632 4.2 31.0 0.4 2.2 .30 9.5 15 9 38 208/230-1-60 187 254 23.7 129.0 0.7 4.9 .57 41.2/41.2 50/50 39/39 147/147 208/230-3-60 187 254 13.5 99.0 0.7 4.9 .57 28.5/28.5 35/35 27/27 117/117

460-3-60 414 508 7.4 49.5 0.4 2.2 .30 14.6 20 14 58

575-3-60 518 632 5.8 40.0 0.4 2.2 .30 11.5 15 11 47 208/230-1-60 187 254 28.8 169.0 1.5 8.8 .57 52.3/52.3 60/60 50/50 221/221 208/230-3-60 187 254 17.3 123.0 1.5 5.8 .57 34.9/34.9 40/40 34/34 173/173

460-3-60 414 508 9.0 62.0 0.8 2.6 .30 17.4 20 17 86

575-3-60 518 632 7.1 50.0 0.8 2.6 .30 13.8 20 13 69 208/230-3-60 187 254 20.5 156.0 1.4 5.8 .57 38.8/38.8 45/45 37/37 205/205

460-3-60 414 508 9.6 70.0 0.6 2.6 .30 17.9 20 17 94

575-3-60 518 632 7.7 56.0 0.6 2.6 .30 14.3 20 15 79

LEGEND

Use the following formula to determine

average voltage

VOLTAGE

RANGE

Min Max RLA LRA FLA FLA FLA MCA MOCP† FLA LRA

COMPRESSOR OFM IFM

COMBUSTION

FAN MOTOR

COMBUSTION

FAN MOTOR

Example: Supply voltage is 460-3-60.

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

Average Voltage =

Determine maximum deviation from average voltage.

(AB) 457 – 452 = 5 v (BC) 464 – 457 = 7 v

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

% Voltage Imbalance= 100 x

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 your local electric utility company immediately.

= 1.53%

POWER

SUPPLY

WITH OUTLET

POWER

SUPPLY

WITH OUTLET

452 + 464 + 455

1371

= 457

7 457

MINIMUM UNIT

DISCONNECT

SIZE*

MINIMUM UNIT

DISCONNECT

SIZE*

Page 11

Table 2C — 48HJ High-Static Motor Units Without Electrical Convenience Outlet

UNIT 48HJ

004

005

006

007

NOMINAL

VOLTAGE (V-Ph-Hz)

208/230-3-60 187 254 10.3 77.0 0.7 5.8 0.6 19.4/19.4 25/25 19/19 120/120

460-3-60 414 508 5.1 39.0 0.4 2.6 0.3 9.4 15 9 60 575-3-60 518 632 4.2 31.0 0.4 2.6 0.3 7.7 15 8 48

208/230-3-60 187 254 13.5 99.0 0.7 5.8 0.6 23.4/23.4 30/30 23/23 142/142

460-3-60 414 508 7.4 49.5 0.4 2.6 0.3 12.3 15 12 71 575-3-60 518 632 5.8 40.0 0.4 2.6 0.3 9.7 15 9 57

208/230-3-60 187 254 17.3 123.0 1.5 7.5 0.6 30.6/30.6 35/35 30/30 187/187

460-3-60 414 508 9.0 62.0 0.8 3.4 0.3 15.5 20 15 94 575-3-60 518 632 7.1 50.0 0.8 3.4 0.3 12.2 15 12 76

208/230-3-60 187 254 20.5 156.0 1.4 7.5 0.6 30.6/30.6 35/35 30/30 187/187

460-3-60 414 508 9.6 70.0 0.6 3.4 0.3 15.5 20 15 94 575-3-60 518 632 7.7 56.0 0.6 3.4 0.3 12.2 15 12 76

VO LTAG E

RANGE

Min Max RLA LRA FLA FLA RLA MCA MOCP† FLA LRA

COMPRESSOR

(each)

Table 2D — 48HJ High-Static Motor Units With Electrical Convenience Outlet

UNIT

48HJ

004

005

006

007

FLA — HACR— IFM — LRA — MCA — MOCP— NEC — OFM — RLA — UL —

*Used to determine minimum disconnect per NEC.

†Fuse or HACR circuit breaker.

NOTES:

1. In compliance with NEC requirements for multimotor and combi-

nation load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device for the unit shall be fuse or HACR breaker. UL, Canada units may be fuse or circuit breaker.

Unbalanced 3-Phase Supply Voltage

Never operate a motor where a phase imbalance in supply voltage is greater than 2%.

the percent of voltage imbalance.

= 100 x

max voltage deviation from average voltage

NOMINAL VOLTAGE (V-Ph-Hz)

208/230-3-60 187 254 10.3 77.0 0.7 5.8 0.6 25.4/25.4 30/30 25 124/124

460-3-60 414 508 5.1 39.0 0.4 2.6 0.3 12.1 15 12 63 575-3-60 518 632 4.2 31.0 0.4 2.6 0.3 9.8 15 10 50

208/230-3-60 187 254 13.5 99.0 0.7 5.8 0.6 29.4/29.4 35/35 29 146/146

460-3-60 414 508 7.4 49.5 0.4 2.6 0.3 15.0 20 14 73 575-3-60 518 632 5.8 40.0 0.4 2.6 0.3 11.8 15 11 59

208/230-3-60 187 254 17.3 123.0 1.5 7.5 0.6 36.6/36.6 40/40 36 192/192

460-3-60 414 508 9.0 62.0 0.8 3.4 0.3 18.2 20 18 96 575-3-60 518 632 7.1 50.0 0.8 3.4 0.3 14.4 20 14 77

208/230-3-60 187 254 20.5 156.0 1.4 7.5 0.6 40.5/40.5 45/45 39 224/224

460-3-60 414 508 9.6 70.0 0.6 3.4 0.3 18.7 25 18 104 575-3-60 518 632 7.7 56.0 0.6 3.4 0.3 15.0 20 15 89

LEGEND

Use the following formula to determine

average voltage

VOLTAGE

RANGE

Min Max RLA LRA FLA FLA RLA MCA MOCP† FLA LRA

COMPRESSOR

(each)

OFM IFM

MINIMUM UNIT

DISCONNECT

SIZE*

MINIMUM UNIT

DISCONNECT

SIZE*

COMBUSTION

FAN MOTOR

COMBUSTION

FAN MOTOR

Example: Supply voltage is 460-3-60.

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

Average Voltage =

Determine maximum deviation from average voltage.

(AB) 457 – 452 = 5 v (BC) 464 – 457 = 7 v

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

% Voltage Imbalance= 100 x

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 your local electric utility company immediately.

= 1.53%

POWER SUPPLY

POWER

SUPPLY

7 457

452 + 464 + 455

1371

= 457

Page 12

OPTIONAL DURABLADE ECONOMIZER — The option-

Fig. 11 — Accessory Field-Installed Humidistat

al economizer hood assembly is packaged and shipped in the filter section. Damper blades and control boards are installed at the factory and the economizer is shipped in the vertical discharge position.

NOTE: Horizontal discharge block-off plate is shipped with the air hood package. If unit is to be used for vertical discharge application, discard this plate.

Assembly:

1. Determine if ventilation air i s required in building. If so, determine the minimum amount to be supplied by each unit and record quantity of ventilation air needed for use in Step 7.

2. Remove filter access panel by raising panel and swinging panel outward. Panel is now disengaged from track and can be removed. No tools are required to remove filter access panel. Remove outdoor-air opening panel. Save panels and screws. See Fig. 13. Remove economizer, and remove optional outdoor-air damper hood package from filter section (located behind economizer).

3. Assemble outdoor-air hood top and side plates as shown in Fig. 14. Install seal strips on hood top and sides. Put aside screen retainer and retainer screw for later assem-

Do not attach hood to unit at this time.

bly .

4. Slide economizer i nto unit and secure with screws. See Fig. 15.

NOTE: Be sure to engage rear economizer flange under tabs in vertical return-air opening.

5. To convert to horizontal discharge application: a. Rotate economizer 90 degrees until the econo-

mizer motor faces the condenser section (see Fig. 16).

b. Remove tape and shipping screw, rotate the baro-

metric relief damper cover 90 degrees.

c. Install horizontal discharge block-off plate over

the opening on the access panel. (Block-off plate MUST be installed before installing hood assembly.) See Fig. 17.

6. Remove 12-pin blue and yellow wir e jumper plug from factory wiring harness and store. Insert economizer plug into 12-pin plug of factory wiring harness. Remove tape and shipping screw from barometric relief damper. See Fig.18.

7. If ventilation air is not required, proceed to Step 8. If ventilation air is required, determine minimum position setting for required airflow. See Fig. 19. Adjust minimum position setting by adjusting the screws on the position setting bracket. Slide bracket until the top screw is in the position determined by Fig. 19. Tighten screws.

8. Remove tape from outdoor-air thermostat (OAT). Fasten OAT to inside of hood using screws and spee d clips provided. See Fig. 20. Make sure OAT terminals are positioned up.

MOISTUREMISER

% RELATIVE HUMIDITY

LEGEND

C — CCH — COMP — FU — HU — IFM — LLSV — S-LPS — TRAN —

Contactor (Compressor) Crankcase Heater Compressor Fuse Humidistat Indoor (Evaporator) Fan Motor Liquid Line Solenoid Valve Low-Pressure Switch (Subcooler Only) Transformer Fac tory W irin g Accessory or Optional Wiring

Fig. 12 — Typical MoistureMiser Dehumidification Package Humidistat Wiring

(208/230-V Unit Shown)

Page 13

9. Replace outdoor-air opening panel using screws from

ECONOMIZER CONTROL BOARD

ECONOMIZER PLUG

ECONOMIZER MOTOR

TOP SCREW

SHIPPING SCREW

ECONOMIZER CONTROL BOARD

BAROMETRIC RELIEF DAMPER

ECONOMIZER PLUG

ECONOMIZER MOTOR

BLOCK-OFF PLATE

Fig. 15 — Durablade Economizer Installed in Unit

Fig. 16 — Horizontal Durablade Economizer

Installation

Fig. 17 — Horizontal Discharge Block-Off Plate

Step 2. Replace filter a ccess panel. Ensure the filter ac cess panel slides along the tracks and is securely engaged.

10. Fasten hood top and side plate assembly (Fig. 14) to outdoor-air opening panel with screws provided.

11. Place knob supplied with economizer on OAT. See Fig. 20. Set for 3° F below indoor room thermostat setting. If accessory enthalpy control (EC) is used in place of OAT, see instructions shipped with EC for installation and adjustment. See Fig. 20.

12. Connect OAT per Fig. 21.

13. Slide outdoor-air inlet screen into screen track on hood side plate. While holding screen in place, fasten screen retainer to hood using screws provided.

NOTE: Refer to Fig. 22 for economizer barometric relief damper characteristics.

FILTER ACCESS PANEL

OUTDOOR-AIR OPENING

Fig. 13 — Typical Access Panel Locations

COMPRESSOR ACCESS PANEL

Fig. 14 — Outdoor-Air Hood Details

Page 14

U-SHAPED HOLE (NOT SHOWN)

ECONOMIZER PLUG

WIRING HARNESS

Fig. 18 — Typical Durablade Economizer and

Wiring Harness

Example:

Given —

Negative Pressure. . . . . . . . . . . . . . . . . . . . . . . . . . .0.1 in. wg

Outdoor Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1100 cfm

Determine —

Setting = 6

Fig. 19A — Durablade Economizer Damper

Minimum Position Setting

TOP

ENTHALPY CONTROL

HOOD

OUTSIDE AIR SCREEN

OPEN

OUTDOOR TEMP

8 0

OAT (TERMINALS ARE UP)

POSITION

MINIMUM

CONT

OR UNPOWERED ST

ACT RA

CTS SHO

4 V

–SETPOINTS

TINGS: 1.5A

DAMPER

24V

WN IN HIGH ENTHALPY

OPEN

3 m

TR1

RUN, 3.5A IN

–CCW

IN. A

DAMPER

CLOSED

T 1

1 VDC

7-36

UNIT

V . B

ENTHALPY CONTROL

Fig. 19B — Durablade Economizer Minimum

Position Damper Setting

Fig. 20 — Outdoor-Air Thermostat/

Enthalpy Control Installation

Fig. 21 — Wiring Connections for

Outdoor-Air Thermostat

Page 15

0.90

BAROMETRIC RELIEF DAMPERS

CONTROLLER

ECONOMI$ER PLUG

GEAR-DRIVEN DAMPER

OUTDOOR AIR TEMPERATURE SENSOR

ACTUATOR

OUTDOOR-AIR OPENING PANEL

FILTER ACCESS PANEL

OUTDOOR AIR OPENING PANEL

SEAL STRIP

EXHAUST AIR SCREEN

EXHAUST AIR HOOD TOP

SCREEN RETAINER

EXHAUST AIR HOOD SIDES

EXHAUST AIR BOTTOM BRACKET

Fig. 23 — Economizer Component Locations

Fig. 24 — Typical Access Panel Locations

Fig. 25 — Exhaust Air Hood Assembly

0.80

0.70

0.60

0.50

0.40

0.30

PRESSURE DROP (in. wg)

0.20

0.10

the EconoMi$er plug into the unit wiring harness. Refer to wiring diagram Fig. 30 and 31. Also refer to Fig. 32 if installing an accessory power exhaust.

9. Install the complete hood assembly on the unit and secure using the screws provided.

10. Remove the indoor fan motor access panel. See Fig. 33.

11. Mount the supply-air temperature sensor to the lower left portion of the indoor blower housing with the two (2) screws provided (see Fig. 34). Connect the violet and pink wires to the corresponding connections on the supply-air temperature sensor. Replace the indoor fan motor access panel.

0.00

200 300 400

100

CFM

Fig. 22 — Durablade Economizer Barometric

Relief Damper Characteristics

OPTIONAL ECONOMI$ER — See Fig. 23 for EconoMi$er component locations.

1. To remove the existing unit filter access panel, raise the panel and swing the bottom outward. The panel is now disengaged from the track and can be removed. Remove the indoor coil access panel and discard. See Fig. 24.

If installing an optional Power Exhaust Assembly, refer to

EconoMi$er Power Exhaust Installation Instructions.

the Controller should be mounted in vertical position as

shown in Fig. 23.

2. Assemble the hood assembly as follows: Remove the EconoMi$er hood from its packaging. Re-

move shipping brackets holding hood package to EconoMi$er. Locate the outdoor-air opening panel. See Fig. 25. Remove hood assembly shipping brackets located on the back (sloped) side of the EconoMi$er assembly. These brackets are used to retain the hood assembly during shipping only .

3. Install the

/8 x 3/4-in. seal strip on the exhaust air hood side panels and the bottom bracket. Assemble the exhaust air hood to the outdoor-air opening panel as shown in Fig. 25, using the screws provided.

assembly to unit at this time.

4. Ins tall the

/8 x 3/4 in. seal strip on the outdoor-air hood top and side panels. Assemble the outdoor-air hood to the outdoor-air opening panel as shown in Fig. 26, using the screws provided.

Do not attach hood assembly to the unit

at this time.

5. Slide the outdoor-air inlet screens into the screen track on the hood side panels. While holding the screens in pl ace, fasten the screen retainer to the hood using the screws provided. Repeat the process for the barometric exhaust air screen.

sembly to unit a t this ti me.

6. Install the EconoMi$er assembly into the rooftop unit. See Fig. 28 and 29.

NOTE: Be sure to engage rear EconoMi$er flange under tabs in return-air opening of the unit base. See Fig. 28.

7. Install the outdoor-air block-off plate, then secure the EconoMi$er with the screws provided. See Fig. 29.

Do not attach completed (Fig. 27) hood as-

8. Remove and discard the 12-pin jumper plug from the unit wiring harness located int he upper left corner and insert

500 600

Do not attach hood

700

800

Page 16

OUTDOOR AIR

WIRING HARNESS

OUTDOOR AIR BLOCK-OFF PLATE

OPENING PANEL

SEAL STRIP

OUTDOOR AIR HOOD TOP

UNIT FILTER RACK

ECONOMIZER CLIP HVAC UNIT

SCREEN RETAINER

SEAL STRIP

ASSEMBLED EXHAUST HOOD

OUTDOOR AIR HOOD SIDES

Fig. 26 — Outdoor-Air Hood Assembly

Fig. 27 — Completed Hood Assembly

OUTDOOR AIR INLET SCREENS

UNIT BASE

ECONOMIZER

ECONOMIZER REAR FLANGE

Fig. 28 — Rear EconoMi$er Flange Installation

Fig. 29 — EconoMi$er Installed

OAT —

LEGEND

Outdoor-Air Thermostat

Fig. 30 — EconoMi$er Wiring

Page 17

ECONOMI$ER

FAN 1

FAN 2

CAPACITOR 2 CAPACITOR 1

RELAY 2 RELAY 1

4-PIN CONNECTOR PLUG (HIGH VOLTAGE)

3-PIN CONNECTOR PLUG (LOW VOLTAGE)

CONTROLLER

OAT COM

OAH

-15 V RAT

COM

RAH

+15 V

(+)

COM

DAT

COM

REM POT

COM

LED

COM

BROWN VIOLET

WHITE

RED

BROWN

VIOLET WHITE

RED

SUPPLY AIR

TEMPERATURE SENSOR

PINK

VIOLET

TEMP

TEMP TEMP

COM OUT PWR

TEMP TEMP COM

OUT PWR

SENSOR

V+

COM VAC

Fig. 31 — EconoMi$er Sensor Wiring

POWER EXHAUST SYSTEM (HIGH VOLTAGE)

OUTDOOR AIR SENSOR

RETURN AIR SENSOR

CONTROL BOX/BURNER ACCESS PANEL

INDOOR FAN MOTOR ACCESS PANEL AND BLOWER

Fig. 33 — Typical Access Panel Locations

(Standard Efficiency Unit Shown)

RED

(575 VAC)

HT01AH859

SECONDARY

HANDY BOX

230VAC

2 x 4 IN.

TO FUSED

DISCONNECT

GRAY

BLACK L1 BLUE L2

GREEN GND

RED YELH1BLU

(460 VAC)

HT01AH850

SECONDARY

COMPRESSOR 1

CONTACTOR

11 2 1

CONNECTOR

GND

230 VAC

1 PHASE

230VAC

4-PIN

PLUG

GREEN

GRAY

BLACK

BLUE

FIELD SUPPLIED WIRING

BROWN

GREEN/ YELLOW

BROWN

GREEN/ YELLOW

FAN 1

FAN 2

BLACK

LT. BLUE

BLACK

BLUE

BLACK

LT. BLUE

BLACK

BLUE

24 VAC

3-PIN

CONNECTOR

PLUG

ORANGE

YELLOW

BROWN

Fig. 32 — Wiring Diagram for Power Exhaust System

Page 18

SUPPLY AIR

Fig. 35 — EconoMi$er Control Adjustment

Potentiometers (Factory Settings)

Fig. 36 — Barometric Relief Capacity

TEMPERATURE SENSOR MOUNTING LOCATION

SUPPLY AIR TEMPERATURE SENSOR

Fig. 34 — Supply-Air Sensor Placement

Control Setup — If a CO2 sensor is not being used, pro-

ceed to the next section. If a CO

sensor is being used, perform

the following:

1. Determine the value at which you want the minimum position of the dampers to begin opening to allow a greater amount of outdoor air to enter. The range is 800 to 1,400 ppm.

2. Locate the CO

SP (PPM) potentiometer and adjust to the

desired set point. See Fig. 35.

Mechanical Cooling Lockout

— Determine the outdoor-air temperature at which you want the mechanical cooling (compressors) to be disabled. Locate the mechanical cooling lockout (MECH CLG LOCKOUT) potentiometer. To disable this feature, turn the potentiometer counterclockwise (CCW) to the OFF position. Otherwise, set the value between 10 and 60 F. Mechanical cooling will not operate when the outdoor air temperature is below this value. See Fig. 35.

Dry Bulb Cha ngeover Set Up

— Determine the dry bulb changeover set point from T able 3. The settings are A, B, C and D. Locate the ECON SP potentiometer and set the dry bulb changeover set point. See Fig. 35. When the OAT is above this set point, the damper is limited to minimum position setting.

Ventilation Air (Minimum Position Set Up)

— If ventilation air is not required, proceed to Step 5. If ventilation air is required, perform the following:

1. The indoor fan must be on to set the ventilation air. Either put the thermostat in the continuous fan mode or jump er the R and G terminals at the rooftop unit connection board.

2. Locate the minimum position (MIN POS) potentiometer. Turn the potentiometer full CCW to fully close the outdoor air dampers. Turn the potentiometer gradually clockwise (CW) to the desired position. See Fig. 35.

3. Replace the filter access panel. See Fig. 24. Ensure the filter access panel slides along the tracks and is securely engaged.

4. Calculate the minimum airflow across the EconoMi$er. a. Calculate % of outside air using the following

formula. % Outdoor air through EconoMi$er

Mixture Temp –

% Outdoor air =

Return Air Temp Outdoor T emp –

Return Air Temp

b. Divide total CFM by percentage outdoor air, this

gives outdoor air vol ume in CFM.

5. Turn on base unit power.

NOTE: The EconoMi$er begins operation three mi nutes after power up.

Personal Injury Hazard.

Avoid possible injury by keep-

ing fingers away from damper blades.

6. See Fig. 36 for b arome tric reli ef d amper cha ract eristi cs.

Table 3 — Changeover Set Points

SETTINGS ABCD Dry Bulb (°F) Single Enthalpy* (Btu/lb) Differential Temperature* (°F, Not Adjustable) Differential Enthalpy* (Btu/lb, Not Adjustable)

*Field-installed accessory.

73 69 66 63 27 25 24 22

2222 1111

If a potentiometer fails, its setting will default to the values

in Ta ble 4.

Table 4 — Default Potentiometer Settings

POTENTIOMETER DEFAULT SETTING

SP (PPM)

MECH CLG LOCKOUT ECON SP MIN POS (%)

1,000

47°

0.5

0.4

0.3

0.2

0.1

STATIC PRESSURE (IN.WG)

400

FLOW (CUBIC FEET/MINUTE)

800

1200

1600

2000

2400

Page 19

Step 9 — Adjust Evaporator-Fan Speed —

MOTOR MOUNTING PLATE NUTS

Fig. 37 — Belt-Drive Motor Mounting

Fig. 38 — Evaporator-Fan Pulley Adjustment

just evaporator-fan speed to meet jobsite conditions.

Tables 5A and 5B show fan rpm at motor pulley settings. Tables 6 and 7 show maximum amp draw of belt-drive motor. Table 8 shows motor nominal horsepower for eva porator-fan motors. Refer to Tables 8-25 for performance data. See Tables 26 and 27 for accessory and option static pressure drops.

BELT-DRIVE MOTORS — Fan motor pulleys are factory set for speed shown in Table 1. Check pulley alignment and belt tension prior to start-up.

NOTE: Before adjusting fan speed, make sure the new fan speed will provide an air temperature rise range as shown in T able 1.

T o change fan speed:

1. Shut off unit power supply, tag disconnect.

2. Loosen belt by loosening fan motor mounting nuts. See Fig. 37.

3. Loosen movable pulley flange setscrew (see Fig. 38).

4. Screw movable flange toward fixed flange to increase speed and away from fixed flange to decrease speed. Increasing fan speed increases load on motor. Do not exceed maximum speed specified in Table 1.

5. Set movable flange at nearest keyway of pulley hub and tighten setscrew. (See Table 1 for speed change for ea ch full turn of pulley flange.)

To align fan and motor pulleys, loosen fan pulley setscrews and slide fan pulley along fan shaft. Make an gular alignment by loosening motor from mounting.

T o adjust belt tension:

1. Loosen fan motor mounting nuts.

2. Slide motor mounting plate away from fan scroll for proper belt tension (1/2-in. deflection with 8 to 10 lbs of force) and tighten mounting nuts.

3. Adjust lock bolt and nut on mounting plate to secure motor in fixed position.

Ad-

Page 20

Table 5A — 48HJ Fan Rpm at Motor Pulley Setting With Standard Motor

STANDARD MOTOR*

UNIT

48HJ

004 005 006

(single-phase)

006 (3-phase)

and 007

1090 1055 1025 990 960 925 890 860 825 795 760 —— 1185 1150 1115 1080 1045 1015 980 945 910 875 840 ——

1460 1425 1385 1350 1315 1275 1240 1205 1165 1130 1095 1055 1020

1585 1540 1490 1445 1400 1350 1305 1260 1210 1165 1120 ——

*Approximate fan rpm shown (standard motor/drive).

Table 5B — 48HJ Fan Rpm at Motor Pulley Setting With High Static Motor

HIGH-STATIC MOTOR

UNIT 48HJ

004 005 006 007

1455 1423 1392 1360 1328 1297 1265 1233 1202 1170 1138 1107 1075 1455 1423 1392 1360 1328 1297 1265 1233 1202 1170 1138 1107 1075 1685 1589 1557 1525 1493 1460 1428 1396 1364 1332 1300 —— 1685 1589 1557 1525 1493 1460 1428 1396 1364 1332 1300 ——

Table 6 — Evaporator-Fan Motor Data — Standard Motor

UNIT

48HJ

004

005

006

007

Bhp —

UNIT

PHASE

MAXIMUM

CONTINUOUS BHP*

Single 1.20 1000 208/230 5.4

Three 1.20 1000

Single 1.20 1000 208/230 5.4

Three 1.20 1000

Single 1.30 1650 208/230 9.7

Three 2.40 2120

LEGEND

Brake Horsepower

MOTOR PULLEY TURNS OPEN

MAXIMUM

OPERATING WATTS*

*Extensive motor and electrical testing on these units ensures that

the full horsepower and watts range of the motors can be utilized with confidence. Using your fan motors up to the ratings shown in this table will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected.

UNIT VOLTAGE

208/230 5.4

460 2.4 575 2.4

208/230 5.4

460 2.4 575 2.4

208/230 6.4

460 2.9 575 2.9

208/230 6.4

460 2.9 575 2.9

MAXIMUM

AMP DRAW

UNIT

48HJ

004

005

006

007

LEGEND

Brake Horsepower

Bhp —

Table 7 — Evaporator-Fan Motor Data — High-Static Motors

UNIT

PHASE

Three 2.40 2120

Three 2.90 2615

MAXIMUM

CONTINUOUS BHP*

MAXIMUM

OPERATING WATTS*

UNIT VOLTAGE

MAXIMUM

AMP DRAW

208/230 6.4

460 2.9 575 2.9

208/230 6.4

460 2.9 575 2.9

208/230 7.9

460 3.6 575 3.6

208/230 6.4

460 3.6 575 3.6

*Extensive motor and electrical testing on these units ensures that

Page 21

Table 8 — Motor Nominal Horsepower

UNIT 48HJ MOTOR NOMINAL HORSEPOWER

004 005

006

007

All 1.00 All 1.00

Single Phase 1.50

Three Phase 2.00

All 2.00

Table 9 — Outdoor Sound Power (Total Unit)

UNIT 48HJ

004,005 006,007

ARI

RATING

(Bels)

63 125 250 500 1000 2000 4000 8000

7.6 55.9 66.0 64.0 66.2 68.4 64.5 61.7 57.3

8.0 59.1 68.9 68.7 71.9 74.0 68.9 65.7 59.0

OCTAVE BANDS

LEGEND

ARI — Bels —

Air Conditioning and Refrigeration Institute Sound Levels (1 bel = 10 decibels)

Table 10 — 48HJ004 Fan Performance — Vertical Discharge Units With Standard Motor

AIRFLOW

(Cfm)

900 581 0.12 673 0.18 736 0.22 805 0.25 865 0.29 911 0.34 1000 644 0.19 709 0.22 782 0.28 835 0.30 900 0.35 937 0.38 1100 687 0.22 746 0.26 806 0.30 867 0.35 929 0.40 964 0.40 1200 733 0.26 785 0.32 843 0.35 903 0.41 960 0.47 994 0.50 1300 754 0.29 826 0.38 891 0.43 942 0.48 991 0.53 1047 0.60 1400 810 0.35 868 0.45 937 0.51 984 0.57 1032 0.62 1067 0.67 1500 841 0.42 911 0.53 985 0.61 1029 0.66 1073 0.72 1109 0.77

AIRFLOW

(Cfm)

900 957 0.39 988 0.43 1039 0.47 1061 0.51 1083 0.54 1105 0.58 1000 992 0.44 1039 0.49 1061 0.55 1088 0.60 1111 0.66 1136 0.72 1100 1013 0.49 1068 0.55 1091 0.61 1109 0.66 1127 0.73 1145 0.80 1200 1045 0.56 1090 0.64 1109 0.68 1156 0.73 1203 0.81 1250 0.86 1300 1075 0.64 1122 0.70 1152 0.76 1190 0.82 1228 0.87 1266 0.94 1400 1110 0.73 1160 0.78 1181 0.83 1237 0.88 1293 0.94 1349 0.99 1500 1150 0.78 1190 0.84 1225 0.89 1271 0.95 1371 1.00 1383 1.05

0.1 0.2 0.3 0.4 0.5 0.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

0.7 0.8 0.9 1.0 1.1 1.2

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

EXTERNAL STATIC PRESSURE (in. wg)

Table 11 — 48HJ004 Fan Performance — Vertical Discharge Units With High-Static Motor

AIRFLOW

(Cfm)

900 673 0.18 805 0.25 911 0.34 988 0.43 1061 0.47 1000 709 0.22 835 0.30 937 0.38 1039 0.49 1086 0.55 1100 746 0.28 867 0.35 964 0.40 1068 0.55 1109 0.61 1200 785 0.32 903 0.41 994 0.50 1090 0.64 1156 0.68 1300 826 0.38 942 0.48 1047 0.60 1122 0.70 1190 0.76 1400 868 0.45 984 0.57 1087 0.67 1160 0.84 1237 0.85 1500 911 0.53 1029 0.66 1109 0.77 1190 1.00 1271 0.95

AIRFLOW

(Cfm)

900 1105 0.57 1140 0.63 1170 0.68 1198 0.73 1224 0.77 1000 1136 0.63 1172 0.69 1203 0.75 1232 0.80 1258 0.86 1100 1145 0.67 1181 0.73 1213 0.80 1242 0.85 1268 0.91 1200 1210 0.74 1248 0.81 1282 0.88 1312 0.94 1340 1.01 1300 1266 0.84 1306 0.92 1341 1.00 1373 1.07 1402 1.14 1400 1349 0.93 1391 1.02 1429 1.11 1463 1.19 1494 1.26 1500 1363 1.05 1406 1.15 1465 1.25 1500 1.34 1532 1.43

LEGEND

Bhp — Brake Horsepower Input to Fan FIOP — Factory-Installed Option

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 2.)

2. Motor drive range is 760 to 1090 rpm for standard motor ; 1075 to 1455 rpm for high-static motor. All other rpms require a field-supplied drive.

3. Values include losses for filters, unit casing, and wet coils. See page 28 for accessory/FIOP static pressure information.

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

LEGEND AND NOTES FOR TABLES 10 AND 11

EXTERNAL STATIC PRESSURE (in. wg)

4. Maximum continuous bhp is 1.20 for standard motor, 2.40 for high-static motor. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See Evaporator-Fan Motor Data tables on page 20 for additional information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative to verify.

6. Interpolation is permissible. Do not extrapolate.

Page 22

Table 12 — 48HJ005 Fan Performance — Vertical Discharge Units With Standard Motor

AIRFLOW

(Cfm)

1200 596 0.20 665 0.25 722 0.31 779 0.36 872 0.48 915 0.54 957 0.60 1300 1400 1500 1600 1700 1800 1900 2000

AIRFLOW

(Cfm)

1200 993 0.65 1028 0.69 1056 0.72 1083 0.74 1134 0.80 1185 0.88 1331 0.99 1300 1400 1500 1600 1700 1800 1900 2000

0.1 0.2 0.3 0.4 0.6 0.7 0.8

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

633 0.24 699 0.30 754 0.36 809 0.42 902 0.55 943 0.61 984 0.67 672 0.30 735 0.36 788 0.42 840 0.48 933 0.62 972 0.69 1011 0.75 711 0.35 770 0.42 822 0.49 873 0.55 963 0.69 1002 0.77 1041 0.84 751 0.42 835 0.49 871 0.56 907 0.63 993 0.77 1033 0.85 1072 0.93 791 0.49 873 0.57 907 0.65 941 0.72 1024 0.87 1064 0.96 1103 1.04 831 0.58 881 0.66 929 0.74 976 0.81 1057 0.97 1095 1.06 1132 1.14 872 0.67 919 0.75 965 0.84 1011 0.92 1091 1.08 1127 1.17 913 0.77 958 0.86 1002 0.95 1046 1.03

0.9 1.0 1.1 1.2 1.4 1.6 1.8

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1021 0.74 1058 0.80 1090 0.85 1121 0.89 1171 0.94 1219 1.00 1268 1.10

10490.8210860.8911200.9611531.0012101.1212571.17

10770.9211130.9911471.0611801.13

11071.0011411.0911741.17

11371.1211711.20 1167 1.23 1202 1.32 1233 1.41 1263 1.49 1323 1.67 1381 1.85 1436 2.02 1197 1.35 1232 1.45 1263 1.54 1294 1.63 1351 1.81 1408 2.00 1463 2.19 1229 1.48 1262 1.58 1294 1.68 1325 1.78 1362 1.97 1436 2.16 1489 2.36

EXTERNAL STATIC PRESSURE (in. wg)

1125 1.21 1160 1.30 1195 1.38

EXTERNAL STATIC PRESSURE (in. wg)

1203 1.29 1235 1.37 1296 1.53 1354 1.70 1407 1.84

1207 1.25 1269 1.40 1326 1.54 1376 1.65

1241 1.27 1295 1.37 1339 1.43

1162 1.25

1307 1.25

Table 13 — 48HJ005 Fan Performance — Vertical Discharge Units With High-Static Motor

AIRFLOW

(Cfm)

1200 665 0.25 779 0.36 872 0.48 957 0.60 1028 0.69 1300 699 0.30 809 0.42 902 0.55 984 0.67 1058 0.80 1400 735 0.36 840 0.48 933 0.62 1011 0.75 1086 0.89 1500 770 0.42 873 0.55 963 0.69 1041 0.84 1113 0.99 1600 835 0.49 907 0.63 993 0.77 1072 0.93 1141 1.09 1700 873 0.57 941 0.72 1024 0.87 1103 1.04 1171 1.20 1800 881 0.66 976 0.81 1057 0.97 1132 1.14 1202 1.32 1900 919 0.75 1011 0.92 1091 1.08 1162 1.25 1232 1.45 2000 958 0.86 1046 1.03 1125 1.21 1195 1.38 1262 1.58

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

EXTERNAL STATIC PRESSURE (in. wg)

AIRFLOW

(Cfm)

1200 1083 0.74 1134 0.80 1185 0.88 1331 0.99 1374 1.09 1300 1121 0.89 1171 0.94 1219 1.00 1268 1.10 1309 1.21 1400 1153 1.00 1210 1.12 1257 1.17 1307 1.25 1349 1.37 1500 1180 1.13 1241 1.27 1295 1.37 1339 1.43 1382 1.57 1600 1207 1.25 1269 1.40 1326 1.54 1376 1.65 1420 1.81 1700 1235 1.37 1296 1.53 1354 1.70 1407 1.84 1452 2.02 1800 1263 1.49 1323 1.67 1381 1.85 1436 2.02 1482 2.22 1900 1294 1.63 1351 1.81 1408 2.00 1463 2.19 —— 2000 1325 1.78 1362 1.97 1436 2.16 1489 2.36 ——

LEGEND

Bhp — Brake Horsepower Input to Fan FIOP — Factory-Installed Option

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. indicates field-supplied motor and drive required.

3. Motor drive range is 840 to 1185 r pm for standard motor; 1075 to 1455 rpm for high-static motor. All other rpms require a field-supplied drive.

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

LEGEND AND NOTES FOR TABLES 12 AND 13

EXTERNAL STATIC PRESSURE (in. wg)

4. Values include losses for filters, unit casing, and wet coils. See page 28 for accessory/FIOP static pressure information.

5. Maximum continuous bhp is 1.2 for standard motor, 2.4 for high-static motor. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See Evaporator-Fan Motor Data tables on page 20 for additional information.

6. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative to verify.

7. Interpolation is permissible. Do not extrapolate.

Page 23

Table 14 — 48HJ006 Fan Performance — Vertical Discharge Units With Standard Motor

Single-Phase Units

AIRFLOW

(Cfm)

1500 771 0.37 828 0.44 935 0.58 1027 0.73 1107 0.88 1185 1.04 1257 1.20 1600 816 0.45 869 0.51 968 0.66 1056 0.81 1127 0.97 1215 1.14 1700 902 0.61 940 0.60 1007 0.75 1094 0.91 1175 1.09 1245 1.26 1800 942 0.70 978 0.66 1063 0.82 1147 0.97 1248 1.20 1900 982 0.80 1023 0.78 1097 0.91 1175 1.11 1266 1.29 2000 1022 0.91 1068 0.90 1132 1.01 1218 1.23 2100 1063 0.99 1115 1.00 1180 1.17 2200 1104 1.13 1159 1.15 1214 1.28 2300 1130 1.26 1202 1.29 2400 2500

AIRFLOW

(Cfm)

1500 771 0.37 828 0.44 935 0.58 1027 0.73 1107 0.88 1185 1.04 1257 1.20 1330 1.38 1411 1.59 1600 816 0.45 869 0.51 968 0.66 1056 0.81 1127 0.97 1215 1.14 1286 1.31 1353 1.49 1421 1.68 1700 902 0.61 940 0.60 1007 0.75 1094 0.91 1175 1.09 1245 1.26 1315 1.44 1381 1.52 1443 1.69 1800 942 0.70 978 0.66 1063 0.82 1147 0.97 1248 1.20 1322 1.33 1395 1.46 1475 1.56 1542 1.71 1900 982 0.80 1023 0.78 1097 0.91 1175 1.11 1266 1.29 1356 1.47 1430 1.58 1504 1.69 1556 1.82 2000 1022 0.91 1068 0.90 1132 1.01 1218 1.23 1303 1.41 1397 1.52 1459 1.67 1532 1.82 1588 1.97 2100 1063 0.99 1115 1.00 1180 1.17 1261 1.35 1340 1.53 1428 1.66 1489 1.80 1567 1.99 1626 2.16 2200 1104 1.13 1159 1.15 1214 1.28 1310 1.52 1375 1.63 1459 1.80 1528 1.95 1603 2.17 1666 2.37 2300 1130 1.26 1202 1.29 1248 1.38 1358 1.69 1410 1.72 1488 1.93 1561 2.13 1637 2.35 2400 1174 1.37 1237 1.41 1292 1.55 1392 1.81 1460 1.90 1532 2.14 1584 2.28 2500 1201 1.48 1272 1.53 1335 1.71 1427 1.94 1518 2.16 1575 2.35

0.1 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1174 1.37 1237 1.41 1292 1.55 1392 1.81 1460 1.90 1532 2.14 1584 2.28 1671 2.55 1756 2.70 1201 1.48 1272 1.53 1335 1.71 1427 1.94 1518 2.16 1575 2.35 1633 2.53 1698 2.72 ——

0.1 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1248 1.38 1358 1.69 1410 1.72 1488 1.93 1561 2.13 1637 2.35 1710 2.54

EXTERNAL STATIC PRESSURE (in. wg)

1286 1.31 1353 1.49 1421 1.68

1322 1.33 1395 1.46 1475 1.56 1542 1.71

1261 1.35 1340 1.53 1428 1.66 1489 1.80 1567 1.99 1626 2.16 1310 1.52 1375 1.63 1459 1.80 1528 1.95 1603 2.17 1666 2.37

1303 1.41 1397 1.52 1459 1.67 1532 1.82 1588 1.97

1356 1.47 1430 1.58 1504 1.69 1556 1.82

1315 1.44 1381 1.52 1443 1.69

1330 1.38 1411 1.59

3-Phase Units

EXTERNAL STATIC PRESSURE (in. wg)

1633 2.53 1698 2.72 ——

1671 2.55 1756 2.70

1710 2.54

Table 15 — 48HJ006 Fan Performance — Vertical Discharge Units With High-Static Motor

AIRFLOW

(Cfm)

1500 808 0.42 914 0.56 1001 0.69 1084 0.85 1168 1.01 1600 846 0.49 950 0.64 1034 0.78 1111 0.94 1194 1.11 1700 884 0.57 983 0.72 1068 0.88 1145 1.03 1218 1.21 1800 924 0.66 1018 0.82 1105 0.98 1179 1.13 1246 1.32 1900 965 0.76 1057 0.92 1143 1.10 1212 1.26 1280 1.43 2000 1008 0.87 1096 1.04 1177 1.22 1247 1.40 1300 1.57 2100 1051 0.99 1136 1.17 1210 1.35 1284 1.54 1347 1.72 2200 1095 1.12 1173 1.30 1245 1.49 1322 1.70 1380 1.89 2300 1140 1.26 1210 1.47 1284 1.65 1356 1.80 1418 2.07 2400 1185 1.41 1249 1.61 1323 1.80 1389 2.03 1456 2.26 2500 1231 1.57 1289 1.78 1363 2.00 1424 2.22 1500 2.45

AIRFLOW

(Cfm)

1500 1199 1.19 1126 1.46 1250 1.69 1301 1.91 1349 2.12 1600 1263 1.28 1275 1.49 1299 1.78 1352 2.01 1401 2.23 1700 1295 1.39 1351 1.58 1352 1.80 1407 2.03 1459 2.26 1800 1319 1.52 1389 1.71 1435 1.91 1494 2.15 1548 2.40 1900 1343 1.64 1415 1.80 1478 2.05 1538 2.31 1594 2.57 2000 1374 1.77 1438 1.99 1505 2.21 1566 2.49 1624 2.77 2100 1409 1.91 1465 2.14 1533 2.45 1596 2.77 2200 1442 2.08 1498 2.30 1568 2.64 2300 1475 2.26 1554 2.64 2400 1565 2.47 1649 2.89 2500

EGEND

Bhp — Brake Horsepower Input to Fan FIOP — Factory-Installed Option

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. indicates field-supplied motor and drive required.

3. Motor drive range is 1020 to 1460 rpm for single-phase standard motors, 1120 to 1585 for 3-phase standard motors, and 1300 to 1685 for high-static motors. All other rpms require a field-supplied drive.

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1596 2.95 1682 3.45 1760 3.96 ————

LEGEND AND NOTES FOR TABLES 14 AND 15

EXTERNAL STATIC PRESSURE (in. wg)

1627 3.03 1693 3.42 1755 3.81 1726 3.31 ————

4. Values include losses for filters, unit casing, and wet coils. See page 28 for accessory/FIOP static pressure information.

5. Maximum continuous bhp is 1.30 for single-phase standard motors, 2.40 for 3-phase standard motors, and 2.90 for high-static motors. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See Evaporator-Fan Motor Data tables on page 20 for additional information.

6. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative to verify.

7. Interpolation is permissible. Do not extrapolate.

1632 2.97 1691 3.31

1654 3.08

Page 24

Table 16 — 48HJ007 Fan Performance — Vertical Discharge Units With Standard Motor

AIRFLOW

(Cfm)

1800 942 0.70 978 0.66 1063 0.82 1147 0.97 1248 1.20 1322 1.33 1395 1.46 1475 1.56 1542 1.71 1900 982 0.80 1023 0.78 1097 0.91 1175 1.11 1266 1.29 1356 1.47 1430 1.58 1504 1.69 1556 1.82 2000 1022 0.91 1068 0.90 1132 1.01 1218 1.23 1303 1.41 1397 1.52 1459 1.67 1532 1.82 1588 1.97 2100 1063 0.99 1115 1.00 1180 1.17 1261 1.35 1340 1.53 1428 1.66 1489 1.80 1567 1.99 1626 2.16 2200 1104 1.13 1159 1.15 1214 1.28 1310 1.52 1375 1.63 1459 1.80 1528 1.95 1603 2.17 1666 2.37 2300 1130 1.26 1202 1.29 1248 1.38 1358 1.69 1410 1.72 1488 1.93 1561 2.13 1637 2.35 2400 1174 1.37 1237 1.41 1292 1.55 1392 1.81 1460 1.90 1532 2.14 1584 2.28 2500 1201 1.48 1272 1.53 1335 1.71 1427 1.94 1518 2.16 1575 2.35 2600 1246 1.62 1320 1.68 1368 1.81 1458 2.06 2700 1285 1.75 1361 1.82 1400 1.91 1490 2.19 2800 1304 1.87 1402 1.95 1439 2.08 2900 1345 2.07 1446 2.16 1477 2.16 3000 1378 2.26 1489 2.36

0.1 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1529 2.52 1598 2.73 ——————————

EXTERNAL STATIC PRESSURE (in. wg)

1562 2.42 1620 2.59 1675 2.77 ————

1543 2.43 1642 2.86 ———————— 1585 2.65 ——————————

1602 2.64 1666 2.85 ——————

1633 2.53 1698 2.72 ——

1671 2.55 1756 2.70

1710 2.54

Table 17 — 48HJ007 Fan Performance — Vertical Discharge Units With High-Static Motor

AIRFLOW

(Cfm)

1800 978 0.66 1063 0.82 1147 0.97 1248 1.20 1322 1.33 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1023 0.78 1097 0.91 1175 1.11 1266 1.29 1356 1.47 1068 0.90 1132 1.01 1218 1.23 1303 1.41 1397 1.52 1115 1.00 1180 1.17 1261 1.35 1340 1.53 1428 1.66 1159 1.15 1214 1.28 1310 1.52 1375 1.63 1459 1.80 1202 1.29 1248 1.38 1358 1.69 1410 1.72 1488 1.93 1237 1.41 1292 1.55 1392 1.81 1460 1.90 1532 2.14 1272 1.53 1335 1.71 1427 1.94 1518 2.16 1575 2.35

1320 1.68 1368 1.81 1458 2.06 1562 2.42 1620 2.59 1361 1.82 1400 1.91 1490 2.19 1602 2.64 1666 2.85 1402 1.95 1439 2.08 1543 2.43 1642 2.86 1446 2.16 1477 2.16 1585 2.65 1489 2.36 1529 2.52 1598 2.73

EXTERNAL STATIC PRESSURE (in. wg)

1775 3.62 1753 3.58 —— 1767 3.69 ——

AIRFLOW

(Cfm)

1800 1395 1.46 1475 1.56 1542 1.71 1607 1.94 1667 2.16 1900 1430 1.58 1504 1.69 1556 1.82 1621 2.06 1682 2.30 2000 1459 1.67 1532 1.82 1588 1.97 1655 2.23 1717 2.49 2100 1489 1.80 1567 1.99 1626 2.16 1694 2.44 1758 2.73 2200 1528 1.95 1603 2.17 1666 2.37 1736 2.68 —— 2300 1561 2.13 1637 2.35 1710 2.54 1782 2.87 —— 2400 1584 2.28 1671 2.55 1756 2.70 ———— 2500 1633 2.53 1698 2.72 2600 1675 2.77 2700 2800 —————————— 2900 —————————— 3000 ——————————

LEGEND

Bhp — Brake Horsepower Input to Fan FIOP — Factory-Installed Option

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. indicates field-supplied motor and drive required.

3. Motor drive range is 1120 to 1585 rpm for standard motors, 1130 to 1685 rpm for high-static motors. All other rpms require a field-supplied drive.

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1768 3.26 ——————

1776 3.45 ————————

LEGEND AND NOTES FOR TABLES 16 AND 17

EXTERNAL STATIC PRESSURE (in. wg)

1779 3.13 ————

4. Values include losses for filters, unit casing, and wet coils. See page 28 for accessory/FIOP static pressure information.

5. Maximum continuous bhp is 2.40 for standard motors, 2.90 for highstatic motors. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See Evaporator-Fan Motor Data tables on page 20 for additional information.

6. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative to verify.

7. Interpolation is permissible. Do not extrapolate.

Page 25

Table 18 — 48HJ004 Fan Performance — Horizontal Discharge Units With Standard Motor

AIRFLOW

(Cfm)

900 526 0.06 584 0.08 656 0.12 734 0.22 818 0.25 875 0.27 1000 570 0.09 627 0.13 738 0.19 800 0.26 848 0.29 895 0.31 1100 614 0.13 670 0.16 758 0.23 812 0.29 863 0.32 914 0.35 1200 658 0.16 710 0.23 780 0.28 840 0.32 889 0.36 938 0.40 1300 703 0.20 752 0.27 808 0.32 868 0.37 916 0.41 963 0.45 1400 725 0.29 776 0.31 845 0.38 891 0.42 937 0.47 983 0.51 1500 755 0.33 816 0.38 870 0.43 924 0.48 969 0.53 1014 0.58

AIRFLOW

(Cfm)

900 924 0.32 953 0.35 989 0.38 1028 0.42 1074 0.45 1120 0.50 1000 936 0.35 977 0.39 1020 0.44 1064 0.48 1124 0.52 1185 0.55 1100 960 0.39 1005 0.43 1052 0.49 1100 0.52 1163 0.56 1225 0.60 1200 988 0.45 1038 0.50 1076 0.53 1136 0.59 1201 0.61 1266 0.64 1300 1012 0.51 1061 0.56 1094 0.61 1172 0.65 1239 0.69 1306 0.72 1400 1027 0.56 1071 0.60 1108 0.67 1208 0.70 1278 0.75 1347 0.79 1500 1056 0.63 1097 0.68 1117 0.70 1245 0.74 1315 0.80 1385 0.85

0.1 0.2 0.3 0.4 0.5 0.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

0.7 0.8 0.9 1.0 1.1 1.2

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

EXTERNAL STATIC PRESSURE (in. wg)

Table 19 — 48HJ004 Fan Performance — Horizontal Discharge Units With High-Static Motor

AIRFLOW

(Cfm)

900 584 0.08 734 0.22 875 0.27 953 0.36 1028 0.42 1000 627 0.13 800 0.26 895 0.31 977 0.39 1064 0.48 1100 670 0.16 812 0.29 914 0.35 1005 0.43 1100 0.52 1200 710 0.23 840 0.32 938 0.40 1038 0.50 1136 0.59 1300 752 0.27 868 0.37 963 0.45 1061 0.56 1172 0.65 1400 776 0.31 891 0.42 983 0.51 1071 0.60 1208 0.70 1500 816 0.38 924 0.48 1014 0.58 1097 0.68 1245 0.74

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

EXTERNAL STATIC PRESSURE (in. wg)

AIRFLOW

(Cfm)

900 1120 0.54 1155 0.59 1186 0.64 1215 0.69 1240 0.73 1000 1185 0.60 1222 0.66 1255 0.71 1285 0.77 1312 0.82 1100 1225 0.65 1263 0.71 1298 0.77 1328 0.83 1357 0.88 1200 1266 0.72 1306 0.79 1341 0.86 1373 0.92 1402 0.98 1300 1306 0.79 1347 0.87 1383 0.94 1416 1.01 1446 1.07 1400 1347 0.87 1389 0.95 1427 1.03 1461 1.11 1492 1.18 1500 1385 0.96 1428 1.05 1467 1.14 1502 1.22 1534 1.30

LEGEND

Bhp — Brake Horsepower Input to Fan FIOP — Factory-Installed Option

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. Motor drive range is 760 to 1090 rpm for standard motors; 1075 to 1455 rpm for high-static motors. All other rpms require a field-supplied drive.

3. Values include losses for filters, unit casing, and wet coils. See page 28 for accessory/FIOP static pressure information.

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

LEGEND AND NOTES FOR TABLES 18 AND 19

EXTERNAL STATIC PRESSURE (in. wg)

4. Maximum continuous bhp is 1.20 for standard motors; 2.40 for high-static motors. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See EvaporatorFan Motor Data tables on page 20 for additional information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative to verify.

6. Interpolation is permissible. Do not extrapolate.

Page 26

Table 20 — 48HJ005 Fan Performance — Horizontal Discharge Units With Standard Motor

AIRFLOW

(Cfm)

1200 569 0.18 641 0.23 701 0.29 761 0.34 859 0.46 901 0.52 943 0.58 1300 604 0.22 673 0.28 731 0.34 788 0.39 887 0.52 928 0.59 968 0.65 1400 640 0.27 705 0.33 761 0.39 817 0.45 914 0.59 955 0.66 996 0.72 1500 676 0.32 738 0.38 793 0.45 8470.51 9400.65 9820.7310240.81 1600 713 0.38 772 0.44 825 0.51 877 0.58 967 0.73 1009 0.81 1051 0.89 1700 750 0.45 806 0.51 857 0.59 908 0.66 997 0.81 1037 0.90 1077 1.01 1800 788 0.52 841 0.59 890 0.67 939 0.75 1026 0.91 1065 1.01 1104 1.07 1900 826 0.60 876 0.68 924 0.76 971 0.84 1056 1.01 1094 1.10 1132 1.18 2000 864 0.70 912 0.77 958 0.86 1004 0.94 1087 1.12

AIRFLOW

(Cfm)

1200 9870.6410300.7010680.7911060.8711340.981189 1.12 1300 10060.7110440.7710860.8411280.9111831.10 1400 10330.7910690.8611040.9311391.011218 1.14 1500 10600.8810950.9511291.0211621.09 1600 10871.0111231.0511561.1311851.20 1700 11141.0711511.15 1800 1141 1.17 1900 2000

0.1 0.2 0.3 0.4 0.6 0.7 0.8

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

0.9 1.0 1.1 1.2 1.4 1.6 1.8

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1178 1.26 1211 1.35 1243 1.43 1303 1.61 1359 1.78 1418 1.95 1168 1.28 1204 1.37 1238 1.47 1271 1.56 1330 1.74 1386 1.93 1439 2.11 1197 1.39 1231 1.48 1265 1.59 1298 1.69 1358 1.89 1413 2.08 1466 2.27

EXTERNAL STATIC PRESSURE (in. wg)

1125 1.21 1162 1.30

EXTERNAL STATIC PRESSURE (in. wg)

1226 1.23 1297 1.35

1228 1.24 1303 1.40 1343 1.60 1250 1.35 1319 1.51 1382 1.68

1183 1.23 1215 1.31 1276 1.48 1334 1.64 1398 1.80

1286 1.34 1320 1.48

1245 1.21

Table 21 — 48HJ005 Fan Performance — Horizontal Discharge Units With High-Static Motor

AIRFLOW

(Cfm)

1200 641 0.23 761 0.34 859 0.46 943 0.58 1030 0.70 1300 673 0.28 788 0.39 887 0.52 968 0.65 1044 0.77 1400 705 0.33 817 0.45 914 0.59 996 0.72 1069 0.86 1500 738 0.38 847 0.51 940 0.65 1024 0.81 1095 0.95 1600 772 0.44 877 0.58 967 0.73 1051 0.89 1123 1.05 1700 806 0.51 908 0.66 997 0.81 1077 1.01 1151 1.15 1800 841 0.59 939 0.75 1026 0.91 1104 1.07 1178 1.26 1900 876 0.68 971 0.84 1056 1.01 1132 1.18 1204 1.37 2000 912 0.77 1004 0.94 1087 1.12 1162 1.30 1231 1.48

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

EXTERNAL STATIC PRESSURE (in. wg)

AIRFLOW

(Cfm)

1200 1106 0.87 1134 0.98 1189 1.12 1245 1.21 1292 1.35 1300 1128 0.91 1183 1.10 1226 1.23 1297 1.35 1346 1.51 1400 1139 1.01 1218 1.14 1286 1.34 1320 1.48 1370 1.65 1500 1162 1.09 1228 1.24 1303 1.40 1343 1.60 1393 1.79 1600 1185 1.20 1250 1.35 1319 1.51 1382 1.68 1434 1.88 1700 1215 1.31 1276 1.48 1334 1.64 1398 1.80 1451 2.01 1800 1243 1.43 1303 1.61 1359 1.78 1418 1.95 1471 2.18 1900 1271 1.56 1330 1.74 1386 1.93 1439 2.11 1493 2.36 2000 1298 1.69 1358 1.89 1413 2.08 1466 2.27

LEGEND

Bhp — Brake Horsepower Input to Fan FIOP — Factory-Installed Option

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. indicates field-supplied motor and drive required.

3. Motor drive range is 840 to 1185 rpm for standard units; 1075 to 1455 rpm for high-static motors. All other rpms require a field-supplied drive.

4. Values include losses for filters, unit casing, and wet coils. See page 28 for accessory/FIOP static pressure information.

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

LEGEND AND NOTES FOR TABLES 20 AND 21

EXTERNAL STATIC PRESSURE (in. wg)

5. Maximum continuous bhp is 1.20 for standard motors; 2.40 for high-static motors. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See EvaporatorFan Motor Data tables on page 20 for additional information.

6. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative to verify.

7. Interpolation is permissible. Do not extrapolate.

15.21 2.54

Page 27

Table 22 — 48HJ006 Fan Performance — Horizontal Discharge Units With Standard Motor

Single-Phase Units

AIRFLOW

(Cfm)

1500 741 0.38 798 0.43 895 0.54 990 0.67 1073 0.80 1154 0.95 1218 1.12 1600 783 0.45 838 0.51 933 0.63 1016 0.75 1102 0.90 1182 1.04 1251 1.20 1700 825 0.53 878 0.60 969 0.72 1049 0.84 1134 1.00 1206 1.14 1800 885 0.63 942 0.73 1047 0.90 1139 1.05 1193 1.14 1276 1.30 1900 928 0.73 982 0.83 1084 1.02 1160 1.11 1223 1.24 2000 971 0.84 1022 0.94 1121 1.12 1188 1.22 2100 1015 0.97 1063 1.10 1140 1.18 1196 1.27 2200 1060 1.10 1104 1.20 1159 1.23 2300 1104 1.25 1130 1.27 2400 1138 1.30 2500

AIRFLOW

(Cfm)

1500 741 0.38 798 0.43 895 0.54 990 0.67 1073 0.80 1154 0.95 1218 1.12 1295 1.36 1360 1.40 1600 783 0.45 838 0.51 933 0.63 1016 0.75 1102 0.90 1182 1.04 1251 1.20 1310 1.40 1385 1.49 1700 825 0.53 878 0.60 969 0.72 1049 0.84 1134 1.00 1206 1.14 1281 1.31 1342 1.48 1398 1.53 1800 885 0.63 942 0.73 1047 0.90 1139 1.05 1193 1.14 1276 1.30 1341 1.40 1413 1.55 1474 1.58 1900 928 0.73 982 0.83 1084 1.02 1160 1.11 1223 1.24 1301 1.38 1374 1.53 1437 1.62 1490 1.67 2000 971 0.84 1022 0.94 1121 1.12 1188 1.22 1254 1.36 1329 1.44 1396 1.66 1460 1.68 1509 1.77 2100 1015 0.97 1063 1.10 1140 1.18 1196 1.27 1272 1.45 1354 1.58 1413 1.75 1475 1.73 1529 1.92 2200 1060 1.10 1104 1.20 1159 1.23 1229 1.41 1306 1.53 1363 1.70 1434 1.81 1487 1.85 1554 2.07 2300 1104 1.25 1130 1.27 1196 1.37 1264 1.56 1340 1.66 1397 1.86 1459 1.88 1520 2.07 1576 2.24 2400 1138 1.30 1174 1.37 1245 1.57 1305 1.63 1373 1.84 1440 1.95 1502 2.06 1552 2.24 2500 1183 1.43 1201 1.50 1284 1.65 1338 1.75 1402 1.99 1469 2.04 1524 2.24

0.10.20.40.60.81.01.2 1.4 1.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Bhp Rpm Bhp Rpm Bhp Rpm

1183 1.43 1201 1.50 1284 1.65 1338 1.75 1402 1.99 1469 2.04 1524 2.24 1585 2.42 1638 2.60

0.10.20.40.60.81.01.2 1.4 1.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Bhp Rpm Bhp Rpm Bhp Rpm

1174 1.37 1245 1.57 1305 1.63 1373 1.84 1440 1.95 1502 2.06 1552 2.24 1604 2.42

1196 1.37 1264 1.56 1340 1.66 1397 1.86 1459 1.88 1520 2.07 1576 2.24

EXTERNAL STATIC PRESSURE (in. wg)

1295 1.36 1360 1.40

1281 1.31 1342 1.48 1398 1.53

1254 1.36 1329 1.44 1396 1.66 1460 1.68 1509 1.77

1229 1.41 1306 1.53 1363 1.70 1434 1.81 1487 1.85 1554 2.07

1272 1.45 1354 1.58 1413 1.75 1475 1.73 1529 1.92

1301 1.38 1374 1.53 1437 1.62 1490 1.67

1341 1.40 1413 1.55 1474 1.58

1310 1.40 1385 1.49

3-Phase Units

EXTERNAL STATIC PRESSURE (in. wg)

1585 2.42 1638 2.60

1604 2.42

Table 23 — 48HJ006 Fan Performance — Horizontal Discharge Units With High-Static Motor

AIRFLOW

(Cfm)

1500 789 0.40 896 0.53 990 0.67 1072 0.83 1153 1.00 1600 826 0.46 931 0.61 1020 0.75 1101 0.91 1178 1.09 1700 865 0.54 966 0.69 1051 0.84 1133 1.01 1205 1.18 1800 905 0.62 1002 0.78 1084 0.93 1163 1.10 1235 1.29 1900 945 0.72 1037 0.88 1119 1.04 1194 1.21 1266 1.40 2000 984 0.82 1072 0.98 1154 1.16 1226 1.33 1297 1.53 2100 1024 0.93 1108 1.10 1192 1.29 1259 1.47 1327 1.66 2200 1064 1.05 1145 1.22 1225 1.43 1294 1.62 1359 1.80 2300 1104 1.18 1183 1.36 1260 1.57 1330 1.78 1392 1.97 2400 1145 1.32 1222 1.45 1296 1.73 1365 1.94 1426 2.15 2500 1186 1.48 1262 1.68 1331 1.89 1400 2.12 1461 2.34

AIRFLOW

(Cfm)

1500 1221 1.17 1256 1.30 1283 1.32 1303 1.22 1345 1.34 1600 1252 1.27 1311 1.45 1340 1.58 1330 1.61 1373 1.77 1700 1278 1.37 1345 1.57 1397 1.76 1424 1.89 1470 2.08 1800 1303 1.48 1371 1.69 1433 1.90 1480 2.09 1528 2.30 1900 1330 1.59 1396 1.80 1460 2.03 1517 2.25 1566 2.47 2000 1362 1.73 1422 1.94 1485 2.16 1544 2.40 1594 2.64 2100 1393 1.87 1452 2.08 1510 2.31 1570 2.55 1620 2.80 2200 1423 2.02 1483 2.24 1538 2.46 1594 2.71 2300 1454 2.18 1515 2.41 1571 2.64 1623 2.88 2400 1485 2.36 1544 2.59 1604 2.84 2500 1518 2.55 1574 2.78

LEGEND

Bhp — Brake Horsepower Input to Fan FIOP — Factory-Installed Option

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. indicates field-supplied motor and drive required.

3. Motor drive range is 1020 to 1460 rpm for single-phase standard units, 1120 to 1585 for 3-phase standard units, and 1300 to 1685 for high-static units. All other rpms require a field-supplied drive.

4. Values include losses for filters, unit casing, and wet coils. See page 28 for accessory/FIOP static pressure information.

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

LEGEND AND NOTES FOR TABLES 22 AND 23

EXTERNAL STATIC PRESSURE (in. wg)

1633 3.03 1692 3.28 1746 3.61

5. Maximum continuous bhp is 1.30 for single-phase standard units, 2.40 for 3-phase standard motors, and 2.90 for high-static motors. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See Evaporator-Fan Motor Data tables on page 20 for additional information.

6. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative to verify.

7. Interpolation is permissible. Do not extrapolate.

1645 2.98 1676 3.17

1657 3.07 1710 3.38

Page 28

Table 24 — 48HJ007 Fan Performance — Horizontal Discharge Units With Standard Motor

AIRFLOW

(Cfm)

1800 885 0.63 942 0.73 1047 0.90 1139 1.05 1193 1.14 1276 1.30 1341 1.40 1413 1.55 1474 1.58 1900 928 0.73 982 0.83 1084 1.02 1160 1.11 1223 1.24 1301 1.38 1374 1.53 1437 1.62 1490 1.67 2000 971 0.84 1022 0.94 1121 1.12 1188 1.22 1254 1.36 1329 1.44 1396 1.66 1460 1.68 1509 1.77 2100 1015 0.97 1063 1.10 1140 1.18 1196 1.27 1272 1.45 1354 1.58 1413 1.75 1475 1.73 1529 1.92 2200 1060 1.10 1104 1.20 1159 1.23 1229 1.41 1306 1.53 1363 1.70 1434 1.81 1487 1.85 1554 2.07 2300 1104 1.25 1130 1.27 1196 1.37 1264 1.56 1340 1.66 1397 1.86 1459 1.88 1520 2.07 1576 2.24 2400 1138 1.30 1174 1.37 1245 1.57 1305 1.63 1373 1.84 1440 1.95 1502 2.06 1552 2.24 2500 1183 1.43 1201 1.50 1284 1.65 1338 1.75 1402 1.99 1469 2.04 1524 2.24 2600 1210 1.58 1243 1.67 1312 1.76 1366 1.96 1435 2.10 1494 2.19 1552 2.40 2700 1254 1.76 1285 1.80 1354 1.95 1403 2.14 1474 2.21 2800 1274 1.82 1304 1.85 1374 2.12 1459 2.25 2900 1318 1.95 1345 2.05 1412 2.32 3000 1362 2.20 1378 2.30 1451 2.40

0.1 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

EXTERNAL STATIC PRESSURE (in. wg)

1585 2.42 1638 2.60

1496 2.45 1529 2.61 1603 2.87 1671 3.03 ———— 1534 2.66 1560 2.81 1611 3.01 ——————

1514 2.42 1570 2.66 1624 2.85 1677 2.99 ——

1536 2.46 1584 2.61 1646 2.83 1706 2.97

1616 2.63 1671 2.80

1604 2.42

Table 25 — 48HJ007 Fan Performance — Horizontal Discharge Units With High-Static Motor

AIRFLOW

(Cfm)

1800 942 0.73 1047 0.90 1139 1.05 1193 1.14 1276 1.30 1341 1.40 1413 1.55 1474 1.58 1522 1.74 1566 1.89 1900 982 0.83 1084 1.02 1160 1.11 1223 1.24 1301 1.38 1374 1.53 1437 1.62 1490 1.67 1538 1.84 1583 2.00 2000 10220.9411211.1211881.2212641.361329 1.44 1396 1.66 1460 1.68 1509 1.77 1558 1.95 1603 2.12 2100 10631.1011401.1811961.2712721.451354 1.58 1413 1.75 1475 1.73 1529 1.92 1578 2.11 1624 2.30 2200 1104 1.20 1159 1.23 1229 1.41 1306 1.53 1363 1.70 1434 1.81 1487 1.85 1554 2.07 1604 2.28 1651 2.48 2300 1130 1.27 1196 1.37 1264 1.56 1340 1.66 1397 1.86 1459 1.88 1520 2.07 1576 2.24 1627 2.46 1674 2.68 2400 1174 1.37 1245 1.57 1305 1.63 1373 1.84 1440 1.95 1502 2.06 1552 2.24 1604 2.42 1656 2.66 1704 2.90 2500 1201 1.50 1284 1.65 1338 1.75 1402 1.99 1469 2.04 1524 2.24 1585 2.42 1638 2.60 1691 2.86 2600 1246 1.67 1312 1.76 1366 1.96 1435 2.10 1494 2.19 1552 2.40 1616 2.63 1671 2.80 2700 1285 1.80 1354 1.95 1403 2.14 1474 2.21 1536 2.46 1584 2.61 1646 2.83 2800 1304 1.85 1374 2.12 1459 2.25 1514 2.42 1570 2.66 1624 2.85 2900 1345 2.05 1412 2.32 1496 2.54 1529 2.61 1603 2.87 3000 1378 2.30 1451 2.40 1534 2.66 1560 2.81

LEGEND

Bhp — Brake Horsepower Input to Fan FIOP — Factory-Installed Option

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. indicates field-supplied motor and drive required.

3. Motor drive range is 1120 to 1585 r pm for standard motors; 1300 to 1685 rpm for high-static motors. All other rpms require a field-supplied drive.

4. Values include losses for filters, unit casing, and wet coils. See below for accessory/FIOP static pressure information.

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

LEGEND AND NOTES FOR TABLES 24 AND 25

EXTERNAL STATIC PRESSURE (in. wg)

1611 3.01 1692 3.49 1764 3.95 ——————

1671 3.03 1742 3.43 ——————

5. Maximum continuous bhp is 2.4 for standard motors; 2.9 for high-static motors. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See EvaporatorFan Motor Data tables on page 20 for additional information.

6. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative to verify.

7. Interpolation is permissible. Do not extrapolate.

1677 2.99 1739 3.33 1795 3.67 ——

1706 2.97 1761 3.27 ——

1726 3.09 1775 3.35

1740 3.12

Table 26 — Economizer Static Pressure Drop

(in. wg)

UNIT

Durablade EconoMi$er

900 1200 1400 1600 1800 2000 2200 2400 2600

.05 .05 .05 .05 .05 .05 .05 .05 .05 .05 .10 .13 .17 .22 .27 .32 .39 .45

CFM

Table 27 — FIOP MoistureMiser Dehumidification

Package Static Pressure Drop (in. wg)

UNIT SIZE

48HJ

E/F004 D/E/F005 D/E/F006 D/E/F007

LEGEND

FIOP —

Factory-Installed Option

UNIT

NOMINAL TONS

3 .04 .07 .09 4 .07 .12 .15 5 .09 .15 .21 6 .12 .20 .28

CFM PER TON

300 400 500

Page 29

PRE-START-UP

Failure to observe the following warnings could result in serious personal injury:

1. Follow recognized safety practices and wear protective goggles when checking or servicing refrigerant system.

2. Do not operate compressor or provide any electric power to unit unless compressor terminal cover is i n place and secured.

3. Do not remove compressor terminal cover until all electrical sources are disconnected.

4. Relieve all pressure from system before touching or disturbing anything inside terminal box if refrigerant leak is suspected around compressor terminals.

5. Never attempt to repair sol d ered connection while refrigerant system is under pressure.

6. Do not use t orch to remove any component. System contains oil and refrigerant under pressure. To remove a component, wear protective goggles and proceed as follows:

a. Shut off electrical power and then gas to unit . b. Reclaim refrigerant to relieve all pressure from

system using both high- and low-pressure ports.

c. Cut component connection tubing with tubing

cutter and remove component from unit.

d. Carefully unsweat remaining tubing stubs

when necessary. Oi l can ignite when exposed to torch flame.

Proceed as follows to inspect and prepare the unit for initial

start-up:

1. Remove all access panels.

2. Read and follow instructions on all WARNING, CAUTION, and INFORMATION labels attached to, or shipped with, unit.

3. Make the following inspections: a. Inspect for shipping and handling damages such as

broken lines, loose parts, or disconnected wires, etc.

b. Inspect for oil at all refrigerant tubing connections

and on unit base. Detecting oil generally indicates a refrigerant leak. Leak-test all refrigerant tubing connections using electronic leak detector, halide torch, or li quid-soap solution.

c. Inspect all field- and factory-wiring connections.

Be sure that connections are completed and tight. Be sure that wires are not in contact with refrigerant tubing or sharp edges.

d. Inspect coil fins. If damaged during shipping and

handling, carefully straighten fins with a fin comb .

4. V erify the following conditions: a. Make sure that condenser-fan blade are correctly

positioned in fan orifice. See Condenser-Fan Adjustment section on page 34 for more details.

b. Make sure that air filter(s) is in place. c. Make sure that condensate drain trap is filled with

water to ensure proper drainage.

d. Make sure that all tools and miscellaneous loose

parts have been removed.

START-UP

Unit Preparation —

stalled in accordance with installat ion instructions and applicable codes.

Return-Air Filters —

stalled in unit (see T able 1). Do not operate unit without returnair filters.

Outdoor-Air Inlet Screens —

must be in place before operating unit.

Compressor Mounting —

spring mounted. Do not loosen or remove compressor holddown bolts.

Internal Wiring —

unit control boxes. Tighten as required.

Refrigerant Service Ports —

3 Schrader-type service ports: one on the suction line, one on the liquid line, and one on the compressor discharge line. Be sure that caps on the ports are tight. Two additional Schrader valves are located under the high-pressure and low-pressure switches, respectively.

HIGH FLOW REFRIGERANT VALVES — Two high flow valves are located on the hot ga s tube coming out of the compressor and the suction tube going into the compressor. Large black plastic caps identify these valves. These valves have O-rings inside which screw the cap onto a brass body to prevent leaks. No field acc ess to these valves is ava ilable at this time. Ensure the plastic caps remain on the valves and are tight or the possibility of refrigerant leakage could occur.

Compressor Rotation —

compressors, it is impor tant to be cer tain comp ressor i s rotat ing in the proper direction. To determine whet her or not compressor is rotating in the proper direction:

1. Connect service gages to suction and discharge pressure fittings.

2. Energize the compressor.

3. The suction pressure should drop and the discharge pressure should rise, as is normal on any start-up.

If the suction pressure does not drop and the discharge pres-

sure does not rise to normal levels:

1. Note that the evaporator fan (006 and 007 only) is probably also rotating in the wrong direction.

2. Turn off power to the unit, tag disconnect.

3. Reverse any two of the unit power leads.

4. Reenergize to the compressor. Check pressures.

The suction and discharge pressure levels should now move

to their normal start-up levels.

Make sure that unit has been in-

Make sure correct filters are in-

Outdoor-air inlet screen

Compressors are internally

Check all electrical connections in

Each unit system has

On 3-phase units with scroll

Page 30

NOTE: When the compressor is rotating in the wrong direction, the unit will make an elevated level of noise and will not provide cooling.

Cooling —

Set space thermostat to OFF position. To start unit, turn on main power supply. Set system selector switch at COOL position and fan switch at AUTO. position. Adjust thermostat to a setting below room temperature. Compressor starts on closure of contactor.

Check unit charge. Refer to Refrigerant Charge section on

page 34.

Reset thermostat at a position above room temperature. Compressor will shut off. Evaporator fan will shut off after a 30-second delay.

TO SHUT OFF UNIT — Set system selector swit ch at OFF position. Resetting thermostat at a position above room temperature shuts unit off temporarily until space temperature exceeds thermostat setting. Units are equipped with CycleLOC™ protection device. Unit shuts down on any safety trip, and indicator light on thermostat comes on. Check reason for all safety trips.

Compressor restart is accomplished by manual reset at the thermostat by turning the sele ctor switch to OFF and then to ON position.

Main Burners —

Main burners are factory set and should

require no adjustment. TO CHECK ignition of main burners and heating controls,

move thermostat set point above room temperature and verify that the burners light and evaporator fan is energized. Check heating effect, then lower the thermostat setting below the room temperature and verify that the burners and evaporator fan turn off.

Refer to Table 28 for the correct orifice to use at high altitudes.

Table 28 — Altitude Compensation*

72,000 AND 115,000

BTUH NOMINAL

ELEVATION

(ft)

0-2,000

2,000 3,000 4,000 5,000 6,000 7,000 8,000

9,000 10,000 11,000 12,000 13,000 14,000

*As the height above sea level increases, there is less oxygen per

cubic foot of air. Therefore, heat input rate should be reduced at higher altitudes.

†Orifices available through your local Carrier distributor.

INPUT

Natural

Gas

Orifice

Size†

33 43 30 38 34 43 30 39 35 44 31 40 36 44 32 41 36 44 33 42 37 45 34 43 37 45 35 43 38 46 36 44 39 47 37 44 41 48 38 45 43 48 39 45 44 49 40 46 44 49 41 47 45 50 42 47

Liquid

Propane

Orifice

Size†

150,000 BTUH

NOMINAL INPUT

Natural

Gas

Orifice

Size†

Liquid

Propane

Orifice

Size†

Heating

1. Purge gas supply line of air by opening union ahead of the gas valve. If gas odor is detected, tighten union and wait 5 minutes before proceeding.

2. Turn on electrical supply and manual gas valve.

3. Set system switch selector at HEAT position and fan switch at AUTO. or ON position. Set heating temperature lever above room temperature.

4. The induced-draft motor will start.

5. After a call for heating, the main burners should light within 5 seconds. If the burner does not light, then there is a 22-second delay before another 5-second try. If the burner still does not light, the time delay is repeated. If the burner does not light within 15 minutes, there is a lockout. To reset the control, break the 24 v power to W1.

6. The evaporator-f an motor will turn on 45 seconds after burner ignition.

7. The evaporator-fan motor will turn off in 45 seconds after the thermostat temperature is satisfied.

8. Adjust airflow to obtain a temperature rise within the range specified on the unit nameplate.

NOTE: The default value for the evaporator-fan mot or on/off delay is 45 seconds. The Integrated Gas Unit Controller (IGC) modifies this value when abnormal limit switch cycles occur. Based upon unit operating conditions, the on delay can be reduced to 0 seconds and the off delay can be extended to 180 seconds. When one flash of the LED (light-emitting diode) is observed, the evaporator-fan on/off delay has been modified.

If the limit switch trips at the start of the heating cycle during the evaporator on delay, the time period of the on delay for the next cycle will be 5 seconds less than the time at which the switch tripped. (Example: If the limit swit ch trips at 30 seconds, the evaporator-fan on delay for the next cycle will oc cur at 25 seconds.) To prevent short-cycling, a 5-second reduction will only occur if a minimum of 10 minutes has e lapsed since the last call for heating.

The evaporator-fan off delay can also be modified. Once the call for heating has ended, there is a 10-minute period during which the modification can occur. If the limit switch trip s during this period, the evaporator-fan off delay will increase by 15 seconds. A maximum of 9 trips can occur, extending the evaporator-fan off delay to 180 seconds.

To restore the original defaul t value, reset the power t o the unit.

TO SHUT OFF UNIT — Set sy s te m s el ec to r s wi tc h a t o f f po sition. Resetting heating selector lever below room temperature will temporarily shut unit off until space temperature falls below thermostat setting.

Safety Relief —

A soft-solder joint at the suction service Schrader port provides pressure relief under abnormal temperature and pressure conditions.

Ventilation (Continuous Fan) —

Set fan and system selector switches at ON and OFF positions, respectively. Evaporator fan operates continuously to provide constant air circulation. When the evaporator-fan sel ector switch is turned to the OFF position, there is a 30-second delay before the fan turns off.

Operating Sequence

COOLING, UNITS WITHOUT ECONOMIZER — When thermostat calls for cooling, terminals G and Y1 and the compressor contactor (C ) are ener gized . The indoo r (eva porator) fa n motor (IFM), compressor, and outdoor (condenser) fan motor (OFM) start. The OFM runs continuously while the unit is in cooling. When the thermostat is satisfied, C is deenergized and the compressor and OFM shut off. After a 30-second delay, the (IFM) shuts off. If the thermostat fan selector switch is in the ON position, the evaporator motor will run continuously.

Page 31

HEATING, UN ITS WI THOUT ECON OMIZ ER — When the thermostat calls for heating, terminal W1 is energized. The induced-draft motor is energized and the burner ignition sequence begins. The indoor (evaporator) fan motor (IFM) is energized 45 seconds after a flame is ignited. When additional heat is needed, W2 is energized and the high-fire solenoid on the main gas valve (MGV) is energized. When the thermostat is satisfied and W1 is deenergized, the IFM stops after a 45-second time-off delay .

COOLING, UNITS WITH DURABLADE ECONOMIZER — When the outdoor-air temperature is above the outdoor-air thermostat (OAT) setting and the room thermostat calls for cooling, compressor contactor is energized to start compressor and the outdoor (condenser) fan motor (OFM). The indoor (evaporator) fan motor (IFM) is energized and the economizer damper moves to the minimum position. After the thermostat is satisfied, there is a 30-second delay before the evaporator fan turns off. The damper then moves to the fullyclosed position. When using continuous fan, the damper moves to the minimum position.

When the outdoor-air temperature is below the OAT setting and the thermostat calls for cooling, the economizer damper move to the minimum position. If the supply-air temperature is above 57 F, the damper continues to open until it reaches the fully-open position or until the supply-air temperature drops below 52 F .

When the supply-air temperature falls between 57 F and 52 F, the damper w ill remai n at a n interm ediate open position. If the supply-air temperature falls below 52 F, the damper will modulate closed until it reaches the minimum position or until the supply-air temperature is above 52 F. When the thermostat is satisfied, the damper moves to the fully closed position when using AUTO. fan or to the minimum position when using continuous fan.

If the outdoor air alone cannot satisfy the cooling require ments of the conditioned space, economizer cooling is integrated with mechanical cooling, providing two stages of cooling. Compressor and the condenser fan will be energized and the position of the economizer damper will be de termined by the supply-air temperature. When the second stage of cooling is satisfied, the compressor and OFM will be deenergized. The damper position will be determined by the supply-air temperature. When the first stage of cooling is satisfied, there is a 30-second delay before the evaporator fan shuts off. The damper then moves to the fully closed position. When using a continuous fan, the damper moves to the minimum position.

COOLING, UNITS WITH ECONOMI$ER — When the Outdoor Air Temperature (OAT) is above the ECON SP set point and the room thermostat calls for Stage 1 cool ing (R to G +Y1), the indoor-fan motor (IFM) is energized and the EconoMi$er damper modulates to minimum position. The compressor contactor is energized starting the compr essor and outdoor-fan motor (OFM). After the thermostat is satisfied, the damper modulates to the fully closed position when the IFM is deenergized.

When the OAT is below the ECON SP set point and the room thermostat calls for Stage 1 cooling (R to G + Y1), the EconoMi$er modulates to the minimum position when the IFM is energized. The EconoMi$er provides Stage 1 of cooling by modulating the return and outdoor air dampers to maintain a 55 F supply air set point. If the supply-air temperature (SAT) is greater than 57 F, the EconoMi$er modulates open, all owing a greater amount of outdoor air to enter the unit. If the SA T drops below 53 F, the outdoor-air damper modules closed to reduce the amount of outdoor air. When the SAT is between 53 and 57 F , the EconoMi$er maintains its position.

HEATING, UNIT S WI TH E CONOM IZ ER — W hen the ther mostat calls for heating, terminal W1 is energized. The

induced-draft motor is energized and the burner ignition sequence begins. The indoor (evaporator) fan motor (IFM) is energized 45 seconds after a flame is ignited and the damper moves to the minimum position. When additional heat is needed, W2 energized and the high-fire solenoid on the main gas valve (MGV) is energized. When the thermostat is satisfied and W1 is deenergized, the IFM stops after a 45-second timeoff delay. The economizer damper then moves to the fully closed position. When using continuous fan, the damper will remain in the minimum position.

UNITS WITH MOISTUREMISER DEHUMIDIFICATION PACKAGE — When thermostat calls for cooling, terminals G and Y1 and the compressor contactor C1 is energized. The indoor (evaporator) fan motor (IFM), compressor, and outdoor (condenser) fan motor (OFM) start. The OFM runs continuously while the unit is in cooling. As shipped from the factory, MoistureMiser dehumidification circuit is a lw ays energized. If MoistureMiser circuit modulation is desired, a field- installed, wall-mounted humidistat is required.

If the MoistureMiser humidistat is installed and calls for the MoistureMiser subcooler coil to operate, the humidistat internal switch closes. This energizes and closes the liquid line solenoid valve coil (LLSV) of the MoistureMiser circuit, forcing the hot liquid refrigerant of the liquid line to enter the subcooler coil (see Fig. 39). As the hot liquid passes through the subcooler coil, it is exposed to the cold supply airflow coming off from the evaporator coil and the liquid is further cooled to a temperature approaching the evaporator coil leaving-air temperature. The state of the refrigerant leaving the subcooler coil is a highly subcooled liquid refrigerant. The liquid then enters a thermostatic expansion valve (TXV) where the liquid i s dropped to a lower pressure. The TXV does not have a pressure drop great enough to change the liquid to a 2-phase fluid. The TXV c an throttle the pressure drop of the liquid refrigerant and maintain proper conditions at the compressor suction valve over a wide range of operating conditions. The liquid then enters a second fixed restrictor expansion device for a second pre ssure drop t o a 2-phase fluid. The liquid proceeds to the evaporator coil at a temperature lower than normal cooling operation. This lower temperature is what increases the latent capacity of the rooftop. The 2-phase refrigerant passes through the evaporator and is changed into a vapor. The air passing over the evaporator coil will become colder than during normal operation as a result of the colder refrigerant temperatures. H owever, as it passes over the subcooler coil, the air will be warmed slightly.

As the refrigerant leaves the evaporator, the refrigerant passes a low-pressure switch in the suction line. This lowpressure switch will de-activate the MoistureMiser package when the suction pressure reaches 60 psig. The low-pressure switch is an added safety device to protect against evaporator coil freeze-up. The low-pressure switc h will only de-activate and open the liquid line solenoid valve in the MoistureMiser circuit. The compressors will continue to run as long as there is a call for cooling, regardless of the position of the low-pressure switch. The solenoid valve and the MoistureMiser package will be re-activated only when the call for cooling has bee n satisfied, the low-pressure switch has closed, and a new call for cooling exists. The crankcase heaters on the scroll compress or provide additional protection for the compressor due to the additional refrigerant charge in the subcooler.

When the humidistat is satisfied, the humidistat internal switch opens cutting power to and opening the LLSV. The refrigerant is routed back through the evaporator and the subcooler coil is removed from the refrigerant loop.

When the thermostat is satisfied, C1 is deenergized and the compressor and OFM shut off. After a 30-second delay, the IFM shuts off. If the thermostat fan selector switch is in the ON position, the IFM will run continuously.

Page 32

Fig. 39 — MoistureMiser Option Operation

Page 33

SERVICE

Fig. 40 — Cleaning Condenser Coil

Fig. 41 — Propping Up Top Panel

Fig. 42 — Separating Coil Sections

When servicing unit, shut off all electrical power to unit to avoid shock hazard or injury from rotating parts.

FAN MOTOR BEARINGS — Fan motor bearings are of the permanently lubricated type. No further lubrication is required. No lubrication of condenser- or evaporator-fan motors is required.

Cleaning —

ing and cooling season and as operating conditions require. EVAPORATOR COIL

1. Turn unit power off, tag disconnect. Remove evaporator coil access panel.

2. If economizer or two-position damper is installed, remove economizer by disconnecting Molex plug and re moving mounting screws. Refer to accessory economizer installation instructions or Optional Economizer sections on pages 12 and 15 for additional information.

3. Slide filters out of unit.

4. Clean coil using a commercial coil cleaner or dishwasher detergent in a pressurized spray canister. Wash both sides of coil and flush with clean water. For best results, back-flush toward return-air section to remove foreign material. Flush condensate pan after completion.

5. Reinstall economizer and filters.

6. Reconnect wiring.

7. Replace access panels.

CONDENSER COIL — Inspect coil monthly. Clean condenser coil annually, and as required by location and outdoor air conditions.

One-Row Coil is not necessary to remove top panel.

2-Row Coils Clean coil as follows:

1. Turn off unit power, tag disconnecct.

2. Remove top panel screws on condenser end of unit.

3. Remove condenser coil corner post. See Fig. 40. To hold top panel open, place coil corner post between top panel and center post. See Fig. 41.

4. Remove screws securing coil to compressor plate and compressor access panel.

5. Remove fastener holding coil sections together at return end of condenser coil. Carefully separate the outer coil section 3 to 4 in. from the inner coil section. See Fig. 42.

6. Use a water hose or other suitable equipment to flush down between the 2 coil sections to remove dirt and de bris. Clean the outer surfaces with a stiff brush in the normal manner.

7. Secure inner and outer coil rows together with a fieldsupplied fastener.

8. Reposition the outer coil section and remove the coil corner post from between the top panel and center post. Reinstall the coil corner post and replace all screws.

CONDENSATE DRAIN — Check and clean each year at start of cooling season. In winter, keep drain dry or protect against freeze-up.

FILTERS — Clean or replace at start of each heating and cooling season, or more often if operating conditions require it. Replacement filters must be same dimensions as original filters.

OUTDOOR-AIR INLET SCREENS — Clean screen with steam or hot water and a mild detergent. Do not use disposable filters in place of screen.

Inspect unit interior at the beginning of heat-

— Wash coil with commercial coil cl eaner. It

Lubrication

COMPRESSORS — Each compressor is charged with correct amount of oil at the factory.

Page 34

Condenser-Fan Adjustment (Fig. 43) —

Fig. 45 — Cooling Charging Chart,

Standard 48HJ005

Fig. 44 — Cooling Charging Chart,

Standard 48HJ004

Shut off unit power supply. Remove condenser-fan assembly (grille, motor, motor cover, and fan) and loosen fan hub setscrews. Adjust fan height as shown in Fig. 43. Tighten setscrews and replace condenser-fan assembly.

004-006 and 007 (208/230 V)

UNIT 48HJ FAN HEIGHT — “A” (in.)

007 (460 and 575 V)

2.75

3.50

Fig. 43 — Condenser-Fan Adjustment

Economizer Adjustment —

Refer to Optional Econo-

mizer sections on pages 12 and 15.

Evaporator Fan Belt Inspection —

Check condition of evaporator belt or tension during heating and coo ling inspections or as conditions require. Replace belt or adjust as necessary.

High-Pressure Switch —

The high-pressure switch contains a Schrader core depressor, and is located on the compressor hot gas line. This switch opens at 428 psig and closes at 320 psig. No adjustments are necessary.

Loss-of-Charge Switch —

The loss-of-charge switch contains a Schrader core depressor, and is located on the compressor liquid line. This switch opens at 7 psig and closes at 22 psig. No adjustments are necessary.

Freeze-Stat —

The freeze-stat is a bimetal temperaturesensing switch that is located on the “hair-pin” end of the evaporator coil. The switch protects the evaporator coil from freezeup due to lack of airflow. The switch opens at 30 F and closes at 45 F . No adjustments are necessary.

Refrigerant Charge —

Amount of refrigerant charge is listed on unit nameplate (also refer to Table 1). Refer to Carrier GTAC2-5 Charging, Recovery, Recycling, and Reclamation training manual and the following procedures.

Unit panels must be in place when unit is operating during charging procedure. Unit must operate a minimum of 10 mi nutes before checking or adjusting referigerant charge.

An accurate superheat, thermocouple- or thermistor-type thermometer, and a gage manifold are required when using the superheat charging method for evaluating the unit charge.

Do not use mercury or small dial-type thermometers because they are not adequate for this type of measurement.

NO CH ARGE — Use standard evacuating techniques. After evacuating system, weigh in the specified amount of refrigerant. (Refer to Table 1.)

LOW CH AR GE CO OL IN G — U sing Cooling Charging Charts, Fig. 44-47, vary refrigerant until the conditions of the charts are met. Note the charging charts are different from type normally used. Charts are based on charging the units to the correct superheat for the various operating conditions. Accurate pressure gage and temperature sensing device are required. Connect the pressure gage to the service port on the suction line. Mount the temperature sensing device on the suction line and insulate it so that outdoor ambient temperature does not affect the reading. Indoor-air cfm must be within the normal operating range of the unit.

MOISTUREMISER SYSTEM CHARGING — The system charge for units with the MoistureMiser option is greater than that of the standard unit alone. The charge for units wit h this option is indicated on the unit nameplate drawing. Also refer to Fig. 48-51. To charge systems using the MoistureMiser

Dehumidification package, fully evacuate, recover, and recharge the system to the nameplate specified charge level.

To check or adjust refrigerant charge on systems using the

MoistureMiser Dehumidification package, charge per Fig. 48-

51. The subcooler MUST be energized to use the charging charts. The charts reference a liquid pressure (psig) and temperature at a point between the condenser coil and the subcooler coil. A tap is provided on the unit to measure liquid pressure entering the subcooler.

IMPORTANT: The subcooler charging charts (Fig. 48-

51) are to be used ONLY with units having the optional MoistureMiser subcooling option. DO NOT use standard charge (Fig. 44-47) for units with MoistureMiser option, and DO NOT use Fig. 48-51 for standar d units.

Page 35

suction temperature should be. If suction temperature is high, add refrigerant. If suction temperature is low, carefully recover some of the charge. Recheck the suction pressure as charge is adjusted.

Example (Fig. 46):

Outdoor Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75 F

Suction Pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 psig

Suction T emperature should be. . . . . . . . . . . . . . . . . . . . . . .48 F

(Suction temperature may very ± 5 F.)

If a charging device is used, temperature and pressure read-

ings must be accomplished using the charging charts. TO USE COOLING CHARGING CHARTS, UNITS

WITH MOISTUREMISER DEHUMIDIFICTION PACKAGE — Refer to charts (Fig. 48-51) to determine the proper leaving condenser pressure and temperature.

Example (Fig. 48):

Leaving Condenser Pressure. . . . . . . . . . . . . . . . . . . . . 250 psig

Leaving Condenser Temperature . . . . . . . . . . . . . . . . . . . 105 F

NOTE: The MoistureMiser subcooler MUST be energized to use the charging charts.

Fig. 46 — Cooling Charging Chart,

Standard 48HJ006

Fig. 47 — Cooling Charging Chart,

Standard 48HJ007

TO USE COOLING CHARGING CHART, STANDARD UNIT — Take the outdoor ambient temperature and read the suction pressure gage. Refer to charts to determine what

Flue Gas Passageways —

tor box and upper areas of the heat exchanger:

1. Remove the combustion blower wheel and motor assembly according to directions in Combustion-Air Blower section below.

2. Remove the 3 screws holding the blower housing to the flue cover.

3. Remove the flue cover to inspect the heat exchanger.

4. Clean all surfaces as required using a wire brush.

Combustion-Air Blower —

sure proper airflow and heating efficiency. Inspect blower wheel every fall and periodically during heating season. For the first heating season, inspect blower wheel bimonthly to determine proper cleaning frequency.

To inspect blower wheel, remove draft hood and screen. Shine a flashlight into opening to inspect wheel. If cleaning is required, remove motor and wheel as follows:

1. Slide burner access panel out.

2. Remove the 5 s crews th at atta ch induced-draft motor assembly to the vestibule cover.

3. Slide the motor and blower wheel assembly out of the blower housing. The blower wheel can be cleaned at this point. If additional cleaning is required, continue with Steps 4 and 5.

4. To remove blower from the motor shaft, by remove 2 setscrews.

5. To remove motor, remove the 4 screws that hold the motor to mounting plate. Remove the motor cooling fan by removing one setscrew. Then remove nuts that hold motor to mounting plate.

6. To reinstall, reverse the procedure outlined above.

Limit Switch —

Limit switch is located on the fan deck.

Remove blower access panel (Fig. 5).

To inspect the flue collec-

Clean periodically to en-

Page 36

CONDENSER FAN MUST BE OPERATING

Fig. 48 — Cooling Charging Chart, 48HJ004 with

Optional MoistureMiser Dehumidification Package

CONDENSER FAN MUST BE OPERATING

Fig. 49 — Cooling Charging Chart, 48HJ005 with

Optional MoistureMiser Dehumidification Package

Fig. 50 — Cooling Charging Chart, 48HJ006 with

Optional MoistureMiser Dehumidification Package

CONDENSER FAN MUST BE OPERATING

Fig. 51 — Cooling Charging Chart, 48HJ007 with

Optional MoistureMiser Dehumidification Package

Page 37

Burner Ignition —

INDUCEDDRAFT MOTOR MOUNTING PLATE

INDUCEDDRAFT MOTOR

MANIFOLD PRESSURE TAP

VESTIBULE PLATE

FLUE EXHAUST

ROLLOUT SWITCH

BLOWER HOUSING

GAS VALV E

BURNER SECTION

Fig. 52 — Burner Section Details

Fig. 53 — Burner Tray Details

Unit is equipped with a direct spark ignition 100% lockout system. Integrated Gas Unit Controller (IGC) is located in the control box (Fig. 10). A single LED on the IGC provides a visual display of operational or sequential problems when the power supply is uninterrupted. The LED can be observed through the viewport. When a break in power occurs, the IGC will be reset (resulting in a loss of fault history) and the evaporator fan on/off times delay will be reset. During servicing, refer to the label on the control box cover or T able 29 for an explanation of LED error code descriptions.

If lockout occurs, unit may be reset by interrupting power

supply to unit for at least 5 seconds.

Table 29 — LED Error Code Description*

LED INDICATION ERROR CODE DESCRIPTION

OFF

1 Flash† 2 Flashes 3 Flashes 4 Flashes 5 Flashes 6 Flashes 7 Flashes 8 Flashes

LEGEND

Light-Emitting Diode

LED —

*A 3-second pause exists between LED error code flashes. If more

than one error code exists, all applicable codes will be displayed in numerical sequence.

†Indicates a code that is not an error. The unit will continue to oper-

ate when this code is displayed.

IMPORTANT: Refer to Troubleshooting Tables 30-36 for additional information.

Normal Operation Hardware Failure Evaporator Fan On/Off Delay Modified Limit Switch Fault Flame Sense Fault 4 Consecutive Limit Switch Faults Ignition Lockout Fault Induced-Draft Motor Fault Rollout Switch Fault Internal Control Fault

9. Remove the gas valve bracket.

10. Slide the burner tray out of the unit (Fig. 53).

11. T o reinstall, reverse the procedure outlined above.

Main Burners —

At the beginning of each heating season, inspect for deterioration or blockage due to corrosion or other causes. Observe the main burner flames and adjust, if necessary.

When servicing gas train, do not hit or plug orifice spuds.

REMOVAL AND REPLACEMENT OF GAS TRAIN (See Fig. 52 and 53)

1. Shut off manual gas valve.

2. Shut off power to unit, tag disconnect.

3. Remove compressor access panel.

4. Slide out burner compartment side panel.

5. Disconnect gas piping at unit gas valve.

6. Remove wires connected to gas valve. Mark each wire.

7. Remove induced-draft motor, ignitor, and sensor w ire s at the Integrated Gas Unit Controller (IGC).

8. Remove the 2 screws that attach the burner rack to the vestibule plate.

CLEANING AND ADJUSTMENT

1. Remove burner rack from unit as described above.

2. Inspect burners and, if dirty, remove burners from rack.

3. Using a soft brush, clean burners and cross-over port as required.

4. Adjust spark gap. See Fig. 54.

5. Reinstall burners on rack.

6. Reinstall burner rack as described above.

Replacement Parts —

A complete list of replacement parts may be obtained from a ny Carrier distributo r upon request. Refer to Fig. 55 for a typ ical unit wiring schematic.

Page 38

48HJE004, 48HJD005-007 — 72,000 BTUH INPUT

LOW HEAT

48HJE005-007, 48HJF004 — 115,000 BTUH INPUT

MEDIUM AND HIGH HEAT

48HJF005-007 — 150,000 BTUH INPUT

Fig. 54 — Spark Gap Adjustment

Page 39

SYMPTOM CAUSE REMEDY

Hardware failure. (LED OFF)

Fan ON/OFF delay modified (LED/FLASH)

Limit switch fault. (LED 2 flashes)

Flame sense fault. (LED 3 flashes)

4 consecutive limit switch faults. (LED 4 flashes)

Ignition lockout. (LED 5 flashes)

Induced-draft motor fault. (LED 6 flashes)

Rollout switch fault. (LED 7 flashes)

Internal control fault. (LED 8 flashes)

TROUBLESHOOTING

Refer to Tables 30-36 for troubleshooting details.

Table 30 — LED Error Code Service Analysis

Loss of power to control module (IGC). Check 5 amp fuse on IGC, power to unit, 24-v circuit breaker, and

High limit switch opens during heat exchanger warm-up period before fan-on delay expires.

Limit switch opens within three minutes after blower-off delay timing in Heating mode.

High temperature limit switch is open. Check the operation of the indoor (evaporator) fan motor.

The IGC sensed flame that should not be present.

Inadequate airflow to unit. Check operation of indoor (evaporator) fan motor and that supply-air

Unit unsuccessfully attempted ignition for 15 minutes.

IGC does not sense that induced-draft motor is operating.

Rollout switch has opened. Rollout switch will automatically reset, but IGC will continue to

Microprocessor has sensed an error in the software or hardware.

transformer. Units without a 24-v circuit breaker have an internal overload in the 24-v transformer. If the overload trips, allow 10 minutes for automatic reset.

Ensure unit is fired on rate and temperature rise is correct.

Ensure units’ external static pressure is within application guidelines.

Ensure that the supply-air temperature rise is in accordance with the range on the unit nameplate.

Reset unit. If problem persists, replace control board.

temperature rise agrees with range on unit nameplate information.

Check ignitor and flame sensor electrode spacing, gaps, etc. Ensure that flame sense and ignition wires are properly terminated. Verify that unit is obtaining proper amount of gas.

Check for proper voltage. If motor is operating, check the speed sensor plug/IGC Terminal J2 connection. Proper connection: PIN 1— White, PIN 2 — Red, PIN 3 — Black.

lock out unit. Check gas valve operation. Ensure that induceddraft blower wheel is properly secured to motor shaft. Reset unit at unit disconnect.

If error code is not cleared by resetting unit power, replace the IGC.

If the IGC must be replaced, be sure to ground yourself to dissipate any electrical charge that may be present before handling new control board. The IGC is sensitive to static electricity and may be damaged if the necessary precautions are not taken.

IMPORTANT: Refer to heating troubleshooting for additional heating section troubleshooting information.

LEGEND

IGC — LED —

Integrated Gas Unit Controller Light-Emitting Diode

Page 40

Table 31 — Heating Service Analysis

PROBLEM CAUSE REMEDY

Burners will not ignite.

Inadequate heating.

Poor flame characteristics.

Burners will not turn off.

Misaligned spark electrodes. Check flame ignition and sensor electrode positioning. Adjust as

No gas at main burners. Check gas line for air purge as necessary. After purging gas line of

Water in gas line. Drain water and install drip leg to trap water. No power to furnace. Check power supply, fuses, wiring, and circuit breaker. No 24 v power supply to control circuit. Check transformer. Transformers with internal overcurrent protection

Miswired or loose connections. Check all wiring and wirenut connections. Burned-out heat anticipator in thermostat. Replace thermostat. Broken thermostat wires. Run continuity check. Replace wires, if necessary. Dirty air filter. Clean or replace filter as necessary. Gas input to unit too low. Check gas pressure at manifold. Clock gas meter for input. If too low,

Unit undersized for application. Replace with proper unit or add additional unit. Restricted airflow. Clean filter, replace filter, or remove any restrictions. Blower speed too low. Use high speed tap, increase fan speed, or install optional blower, as

Limit switch cycles main burners. Check rotation of blower, thermostat heat anticipator settings, and

Too much outdoor air. Adjust minimum position.

Incomplete combustion (lack of combustion air) results in:

Aldehyde odors, CO (carbon monoxide), sooting flame, or floating flame.

Unit is locked into Heating mode for a one minute minimum.

needed.

air, allow gas to dissipate for at least 5 minutes before attempting to relight unit.

Check gas valve.

require a cool-down period before resetting. Check 24-v circuit breaker; reset if necessary.

increase manifold pressure or replace with correct orifices.

suitable for individual units, Adjust pulley.

temperature rise of unit. Adjust as needed.

Check economizer operation. Check all screws around flue outlets and burner compartment.

Tighten as necessary. Cracked heat exchanger. Overfired unit — reduce input, change orifices, or adjust gas line or

manifold pressure. Check vent for restriction. Clean as necessary. Check orifice to burner alignment. Wait until mandatory one minute time period has elapsed or reset

power to unit.

Table 32 — Durablade Economizer Service Analysis

PROBLEM CAUSE REMEDY

Damper does not open.

Economizer operation limited to minimum position.

Damper does not close.

LEGEND

EC — OAT — SAT — SW —

Enthalpy Control Outdoor-Air Thermostat Supply-Air Thermostat Switch

Evaporator fan not on. Check wiring between G on connection board and evaporator-fan

No power to economizer motor. 1. Check that SW3 is making proper contact with the damper blade.

Economizer motor failure. If there is 24 vac power at the motor terminals, but motor is not operat-

OAT or EC set too high. 1. Set at correct temperature (3 F below indoor space temperature).

Check wiring of economizer relay packs. 1. Check continuity across relay R2 coil. If not connected, replace R2

Check SAT. If supply-air temperature is over 57 F, switch T2 should be closed. If

Incorrect wiring or wiring defects. 1. Check switches 2 and 4. If non-operational, replace.

Check SAT. If supply-air thermostat is below 52 F, switch T1 should be closed. If

Economizer motor failure. If there is 24 vac power at motor terminals, but motor is not operating,

contactor.

2. Check continually across R1 coil. If not connect, replace relay R1.

3. Check diode D18. If diode is not functioning properly, replace D18.

4. Check wiring in economizer relay pack. (See unit label diagram.)

ing, replace motor.

2. Check OAT or EC by setting set point above outdoor temperature or humidity level. If switch does not close, replace OAT or EC.

relay.

2. Check continuity across relay R3 coil. If not connected, replace R3 relay.

not, replace SAT.

2. Check diode D19. If diode D19 is not functioning properly, replace.

3. Check wiring on economizer and on economizer relay pack. (See unit label diagram.)

not, replace SAT.

replace the motor.

Page 41

Table 3 3 — EconoMi$er Flash Code Identification

FLASH CODE CAUSE ACTION TAKEN BY ECONOMI$ER

Constant On Constant Off Continuous

Flash Flash One Flash Two Flash Three

Flash Four

Critical Fault

Flash Five

Flash Six

Flash Seven

Flash Eight

Flash Nine

Non-Critical Fault

Flash Ten

Normal operation Normal operation. No power No operation. CONFIG button pushed and held

between 3 and 9 seconds Control board fault System shutdown. Thermostat fault (i.e., Y2 without Y1) System shutdown until corrected. Actuator fault Revert to mechanical cooling only.

Supply air temperature sensor fault

Outdoor air temperature sensor fault

Outdoor air humidity sensor fault Continue operation with dry bulb or dry bulb differential switchover.

Return air temperature sensor fault

Return air humidity sensor fault

Carbon Dioxide (CO

Onboard adjustment potentiometer fault Continue operation with default potentiometer settings.

) sensor fault Continue operation without ventilation control.

Outdoor air damper is stroked fully open, then closed (automatic test procedure takes 3 minutes to complete).

Continue operation with damper at minimum position. Revert to mechanical cooling only.

Continue operation with damper at minimum position. Disable mechanical cooling lockout.

Continue operation with single enthalpy EconoMi$er switchover or dry bulb EconoMi$er switchover (without humidity sensor).

Continue operation with single enthalpy, differential dry bulb, or dry bulb EconoMi$er switchover.

Table 34 — EconoMi$er Troubleshooting

PROBLEM POTENTIAL CAUSE REMEDY

Damper Does Not Open

EconoMi$er Operation Limited to Minimum Position

Damper Position Less than Minimum Position Set Poi nt

Damper Does Not Return to Minimum Position

Damper Does Not Close on Power Loss

LEGEND

IFM — PL —

Indoor Fan Motor Plug

Indoor (Evaporator) Fan is Off

No Power to EconoMi$er Controller

No Power to G Terminal If IFM is on, check to ensure 24 vac is present on G Terminal of the

Controller Fault If STATUS light is flashing one flash, the EconoMi$er controller is

Thermostat Fault If STATUS light is flashing two flashes, the EconoMi$er controller senses

Actuator Fault Check the wiring between the EconoMi$er controller and the actuator.

Minimum Position Set Incorrectly

EconoMi$er Changeover Set Point Set Too High or Too Low

Supply Air Temperature Sensor Faulty

Outdoor Air Temperature Sensor Faulty

Supply Air Low Limit Strategy Controlling

Ventilation Strategy

Controlling

Damper Travel is Restricted

Check to ensure that 24 vac is present at Terminal C1 (Common Power) on the IFC (Indoor Evaporator Fan Contactor) or that 24 vac is present at the IFO (Indoor Evaporator Fan On) terminal. Check whether 24 vac is present at PL 6-1 (red wire) and/or PL6-3 (black wire). If 24 vac is not present, check wiring (see unit label diagram).

Check proper thermostat connection to G on the connection board. Check to ensure that 24 vac is present across Terminals 24 VAC and

24 V COM on the EconoMi$er control. If 24 vac is not present, check wiring (see unit label diagram). If 24 vac is present, STATUS light should be on constantly.

EconoMi$er controller. If 24 vac is not present, check wiring (see unit label diagram).

experiencing a fault condition. Cycle power to the controller. If condition continues, replace the EconoMi$er controller.

the thermostat is wired incorrectly. Check wiring between the thermostat and the connection board in the electrical panel. The fault condition is caused by Y2 being energized before Y1.

Hold CONFIG button between 3 and 10 seconds to verify the actuator’s operation. (This process takes 3 minutes to complete.)

Verify that the MIN POS (%) is set greater than zero. Adjust MIN POS (%) to 100% to verify operation, and then set to correct setting.

Set at correct value. See Table 3.

If STATUS light is flashing 4 flashes, Supply Air Temperature Sensor is faulty. Check wiring or replace sensor.

If STATUS light is flashing 5 flashes, Outdoor Air Temperature Sensor is faulty. Check wiring or replace sensor.

The supply-air temperature is less than 45 F, causing the minimum position to be decreased. Refer to the Start-Up instructions. Verify correct setting of MIN POS (%). If correct, EconoMi$er is operating correctly.

If a CO2 sensor is being used, and the damper position is greater than minimum position, the ventilation control strategy is controlling. Refer to the Start-Up instructions. EconoMi$er is operating correctly.

Check to ensure the damper is not blocked.

Page 42

Table 35 — MoistureMiser Dehumidification Subcooler Service Analysis

PROBLEM CAUSE REMEDY

Subcooler will not energize.

Subcooler will not deenergize. Low system capacity.

Loss of compressor superheat conditions with subcooler energized.

No power to control transformer from evaporator-fan motor.

No power from control transformer to liquid line solenoid valve

Liquid line solenoid valve will not operate. 1. Solenoid coil defective; replace.

Liquid line solenoid valve will not open. Valve is stuck closed; replace valve. Low refrigerant charge or frosted evaporator

coil.

Thermostatic expansion valve (TXV). 1. Check TXV bulb mounting, and secure tightly to

Check power source and evaporator-fan relay. Ensure all wire connections are tight.

1. Fuse open; check fuse. Ensure continuity of wiring.

2. Low-pressure switch open. Cycle unit off and allow low-pressure switch to reset. Replace switch if it will not close.

3. Transformer bad; check transformer.

2. Solenoid valve stuck open; replace.

1. Check charge amount. Charge per Fig. 47-51.

2. Evaporator coil frosted; check and replace lowpressure switch if necessary.

suction line.

2. Replace TXV if stuck open or closed.

Page 43

PROBLEM CAUSE REMEDY

Compressor and condenser fan will not start.

Compressor will not start but condenser fan runs.

Compressor cycles (other than normally satisfying thermostat).

Compressor operates continuously.

Excessive head pressure.

Head pressure too low.

Excessive suction pressure.

Suction pressure too low.

Evaporator fan will not shut off.

Table 36 — Cooling Service Analysis

Power failure. Call power company. Fuse blown or circuit breaker tripped. Replace fuse or reset circuit breaker. Defective thermostat, contactor, transformer,

or control relay. Insufficient line voltage. Determine cause and correct. Incorrect or faulty wiring. Check wiring diagram and rewire correctly. Thermostat setting too high. Lower thermostat setting below room temperature. Faulty wiring or loose connections in com-

pressor circuit. Compressor motor burned out, seized, or

internal overload open. Defective run/start capacitor, overload, start

relay. One leg of 3-phase power dead. Replace fuse or reset circuit breaker. Determine

Refrigerant overcharge or undercharge. Recover refrigerant, evacuate system, and

Defective compressor. Replace and determine cause. Insufficient line voltage. Determine cause and correct. Blocked condenser. Determine cause and correct. Defective run/start capacitor, overload, or

start relay. Defective thermostat. Replace thermostat. Faulty condenser-fan motor or capacitor. Replace. Restriction in refrigerant system. Locate restriction and remove. Dirty air filter. Replace filter. Unit undersized for load. Decrease load or increase unit size. Thermostat set too low. Reset thermostat. Low refrigerant charge. Locate leak, repair, and recharge. Leaking valves in compressor. Replace compressor. Air in system. Recover refrigerant, evacuate system, and

Condenser coil dirty or restricted. Clean coil or remove restriction. Dirty air filter. Replace filter. Dirty condenser coil. Clean coil. Refrigerant overcharged. Recover excess refrigerant. Air in system. Recover refrigerant, evacuate system, and

Condenser air restricted or air short-cycling. Determine cause and correct. Low refrigerant charge. Check for leaks, repair, and recharge. Compressor valves leaking. Replace compressor. Restriction in liquid tube. Remove restriction. High heat load. Check for source and eliminate. Compressor valves leaking. Replace compressor. Refrigerant overcharged. Recover excess refrigerant. Dirty air filter. Replace filter. Low refrigerant charge. Check for leaks, repair, and recharge. Metering device or low side restricted. Remove source of restriction. Insufficient evaporator airflow. Increase air quantity. Check filter and replace if

Temperature too low in conditioned area. Reset thermostat. Outdoor ambient below 25 F. Install low-ambient kit. Time off delay not finished. Wait for 30-second off delay.

Replace component.

Check wiring and repair or replace.

Determine cause. Replace compressor.

Determine cause and replace.

cause.

recharge to nameplate.

Determine cause and replace.

recharge.

necessary.

Page 44

Fig. 55 — Typical Wiring Schematic and Component Arrangement

(208/230 3-Phase Unit Shown)

Page 45

LEGEND AND NOTES FOR FIG. 55

AHA — C — CAP — CC — CLO — COMP — D — EC — ECON — EPS — EQUIP — ER — FPT — FSS — FU — GND — GVR — HPS — HS — HV — I — IDM — IFC — IFM — IGC — LED — LPS — LS — MGV — MTR — OAT — OFM — P —

Adjustable Heat Anticipator Contactor, Compressor Capacitor Cooling Compensator Compressor Lockout Compressor Motor Diode Enthalpy Control Economizer Emergency Power Supply Equipment Economizer Relay Freeze-Protection Thermostat Filter-Status Switch Fuse Ground Gas Valve Relay High-Pressure Switch Hall-Effect Sensor High Voltage Ignitor Induced-Draft Motor Indoor (Evaporator) Fan Contactor Indoor (Evaporator) Fan Motor Integrated Gas Unit Controller Light-Emitting Diode Low-Pressure/Loss-of-Charge Switch Limit Switch Main Gas Valve Motor Outdoor-Air Thermostat Outdoor (Condenser) Fan Motor Plug

PL — QT — R — RS — SAT — SEN — SW1 — SW2 — SW3 — SW4 — TC — TH — TRAN —

Plug Assembly Quadruple Terminal Relay Rollout Switch Supply-Air Thermostat Sensor Switch Fully Open Switch Fully Closed Switch Minimum Vent Position Switch Maximum Vent Position Thermostat-Cooling Thermostat-Heating Transformer

Field Splice

Marked Wire

Terminal (Marked)

Terminal (Unmarked)

Terminal Block

Splice

Splice (Marked) Factory Wiring Field Control Wiring Field Power Wiring Accessory or Optional Wiring

To indicate common potential only. Not to represent wiring.

NOTES FOR FIG. 55

1. If any of the original wire furnished must be replaced, it must be replaced with Type 90 C wire or its equivalent.

2. Three-phase motors are protected under primary single-phasing conditions.

3. Thermostats: HH07AT170, 172 Subbase: HH93AZ176, 177, 178 and 179

4. Set heat anticipator at .14 amp for first stage and .14 amp for second stage.

5. Use copper conductors only.

6. TRAN is wired for 230 v unit. If unit is to be run with 208 v power supply, disconnect BLK wire from 230 v tap and connect to 208 v tap (RED). Insulate end of 230 v tap.

Page 46

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

Book 1 4 Ta b 1 a 6 a

PC 111 Catalog No. 534-767 Printed in U.S.A. Form 48HJ-18SI Pg 46 9-00 Replaces: 48HJ-17SI

Page 47

Page 48

START-UP CHECKLIST

(Remove and Store in Job File)

I. PRELIMINARY INFORMATION

MODEL NO.:________________________________ SERIAL NO.: ________________________________________ DATE:______________________________________ TECHNICIAN: _______________________________________

BUILDING LOCATION: _______________________________

II. PRE-START-UP (insert checkmark in box as each item is completed)



VERIFY THA T ALL PACKING MA TERIALS HAVE BEEN REMOVED FROM UNIT



REMOVE ALL SHIPPING HOLDDOWN BOL TS AND BRACKETS PER INSTALLATION INSTRUCTIONS



VERIFY THA T CONDENSATE CONNECTION IS INSTALLED PER INSTALLATION INSTRUCTIONS



CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS



CHECK GAS PIPING FO R LEAKS



CHECK THAT RETURN INDOOR-AIR FI LTER IS CLE AN AN D IN PLAC E



VERIFY THA T UNIT INSTALLA TION IS LEVEL



CHECK FAN WHEEL AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND SETSCREW TIGHTNESS

III. START-UP

ELECTRICAL

SUPPLY VOLTAGE L1-L2 L2-L3 L3-L1 COMPRESSOR AMPS L1 L2 L3 INDOOR-FAN AMPS L1 L2 L3

TEMPERATURES

OUTDOOR-AIR TEMPERA TURE DB RETURN-AIR TEMPERATURE

COOLING SUPPLY AIR GAS HEA T SUPPLY AIR

PRESSURES

GAS INLET PRESSURE IN. WG GAS MANIFOLD PRESSU RE IN. WG (HI FIRE) REFRIGERANT SUC TION PSIG REFRIGERANT DI SC HARGE PSIG



VERIFY REFRIGERANT CHARGE USING CHARGING T ABLES



VERIFY THAT 3-PHASE SCROLL COMPRESSOR ROTATING IN CORRECT DIRECTION

CUT ALONG DOTTED LINE CUT ALONG DOTTED LINE

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

Book 1 4 Ta b 1 a 6 a

PC 111 Catalog No. 534-767 Printed in U.S.A. Form 48HJ-18SI Pg CL-1 9-00 Replaces: 48HJ-17SI

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Carrier 48HJD005-007 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual