installation, start-up and service instructions

installation, start-up and service instructions

581B

Dura Pac Plus Series

SINGLE PACKAGE ROOFTOP

GAS HEATING/ELECTRIC COOLING UNITS

Sizes 090-150

7

1

/

2

to 12

1

/

2

Tons

CONTENTS

Page

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

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-38

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

II. Step 2 — Field Fabricate Ductwork . . . . . . . . . . . . . 2

III. Step 3 — Determine Location of Drain Line

and External Trap. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

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

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

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

VII. Step 7 — Make Electrical Connections . . . . . . . . . . 9

VIII. Step 8 — Adjust Factory-Installed Options . . . . . . 13

IX. Step 9 — Adjust Evaporator-Fan Speed . . . . . . . . 22

PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39-42

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42-48

TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . .49-54

INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

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

Follow all safety codes. Wear safety glasses and work gloves.

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

CAUTION: Ensure voltage listed on unit data plate agrees with electrical supply provided for the unit .

Cancels: II 581B-90-6 II 581B-90-7

10/1/05

WARNING: Disconnect gas piping from unit when leak testing at pressure greater than 1 /

2

psig. Pressures greater than 1 /

2

psig will cause gas valve damage resulting in hazardous condition. If gas valve is subjected to pressure greater than

1

/

2 psig, it must be replaced before use. When pressure testing field-supplied gas piping at pressures of 1 /

2

psig or less, a unit connected to such piping must be isolated by manually closing the gas valve(s).

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

INSTALLATION

Unit is shipped in the vertical configuration. To convert to horizontal application, remove side duct opening covers.

Using the same screws, install covers on vertical duct openings with the insulation-side down. Seals around duct openings must be tight. See Fig. 1.

I. STEP 1 — PROVIDE UNIT SUPPORT

A. Roof Curb

Assemble and install accessory roof curb in accordance with instructions shipped with curb. See Fig. 2. Install insulation, cant strips, roofing felt, and counter flashing as shown. Duct-

work must be attached to curb. If gas is to be routed through the curb, attach the accessory thru-the-curb service connection plate to the roof curb in accordance with the accessory installation instructions. Connection plate must be installed before unit is set in roof curb.

IMPORTANT: The gasketing of the unit to the roof curb is critical for a watertight seal. Install gasket supplied with the roof curb as shown in Fig. 2. Improperly applied gasket can also result in air or water leaks and poor unit performance.

Curb should be level. This is necessary for unit drain to function properly. Unit leveling tolerances are shown in Fig. 3.

Refer to Accessory Roof Curb Installation Instructions for additional information as required.

B. 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.

C. Alternate Unit Support (Curb or Slab Mount)

A non-combustible sleeper rail can be used in the unit curb support area. If sleeper rails cannot be used, support the long sides of the unit with a minimum of 3 equally spaced

4-in. x 4-in. pads on each side.

II. STEP 2 — FIELD FABRICATE DUCTWORK

On vertical units, secure all ducts to roof curb and building structure. Do not connect ductwork to unit. For horizontal applications, field-supplied flanges should be attached to horizontal discharge openings and all ductwork 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 insulated 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 pressure (a negative condition) shall not exceed 0.35 in. wg with economizer or 0.45 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 as when used with a night set-back thermostat.

To operate at lower return-air temperatures, a field-supplied outdoor-air temperature control must be used to initiate both stages of heat when the temperature is below 45 F. Indoor comfort may be compromised when these lower air temperatures are used with insufficient heating temperature rise.

III. STEP 3 — DETERMINE LOCATION OF DRAIN LINE AND

EXTERNAL TRAP

The unit’s 3 /

4

-in. condensate drain connections are located on the bottom and end 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 end drain connection, make sure the plug in the alternate bottom connection is tight before installing the unit.

To use the bottom drain connection for a roof curb installation, relocate the factory-installed plug from the bottom connection to the end connection. The center drain plug looks like a star connection, however it can be removed with a

1 /

2

-in. socket drive extension. See Fig. 4. 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 at least 4 in. deep and protect against freeze-up. See Fig. 5. If drain line is installed downstream from the external trap, 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.

Fig. 1 — Horizontal Conversion Panels

— 2 —

CONNECTOR

PKG. ACCY.

CRBTMPWR001A01

CRBTMPWR002A01

CRBTMPWR003A01

CRBTMPWR004A01

B

2

′-8

7

/

16

[827]

″

C

1

′-10

15

/

[583]

16

″

D ALT

DRAIN

HOLE

1

3

/

4

″

[44.5]

GAS

3 /

4

″

[19] NPT

1 /

2

″

[12.7] NPT

3 /

4

″

[19] NPT

POWER

3 /

4

″ [19] NPT

1

1

/

4

″ [31.7]

3 /

4

″ [19] NPT

1 1 /

4

″ [31.7]

CONTROL

ACCESSORY

PWR

1 /

2

″

[12.7] NPT

1 /

2

″

[12.7] NPT

1

/

2

″

[12.7] NPT

ROOF CURB

ACCESSORY

“A”

CRRFCURB003A01

1

′-2″ [356]

CRRFCURB004A01

2

′-0″ [610]

UNIT SIZE

581B090-150

NOTES:

1. Roof curb accessory is shipped disassembled.

2. Insulated panels: 1-in. thick polyurethane foam,

1 3 /

4

lb density.

3. Dimensions in [ ] are in millimeters.

4. Roof curb: 16-gage steel.

5. Attach ductwork to curb (flanges of duct rest on curb).

6. Service clearance 4 ft on each side.

7.

Direction of airflow.

8. Connector packages CRBTMPWR001A01 and

2A01 are for thru-the-curb gas type. Packages

CRBTMPWR003A01 and 4A01 are for thruthe-bottom type gas connections.

Fig. 2 — Roof Curb Details

— 3 —

MAXIMUM ALLOWABLE

DIFFERENCE (in.)

A-B

0.5

B-C

1.0

A-C

1.0

Fig. 3 — Unit Leveling Tolerances

HORIZONTAL

DRAIN PLUG

DRAIN PLUG

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

Fig. 4 — Condensate Drain Pan

NOTE: Trap should be deep enough to offset maximum unit static difference. A 4-in. trap is recommended.

Fig. 5 — Condensate Drain Piping Details

IV. STEP 4 — RIG AND PLACE UNIT

Inspect unit for transportation damage. File any claim with transportation agency. Keep unit upright and do not drop.

Spreader bars are not required if top crating is left on unit.

Rollers may be used to move unit across a roof. Level by using unit frame as a reference. See Table 1 and Fig. 6 for additional information. Operating weight is shown in Table 1 and Fig. 6.

Lifting holes are provided in base rails as shown in Fig. 6 and 7. Refer to rigging instructions on unit.

A. Positioning

Maintain clearance around and above unit to provide minimum distance from combustible materials, proper airflow, and service access. See Fig. 7.

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

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

— 4 —

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.

Position unit on roof curb so that the following clearances are maintained:

1

/

4

-in. clearance between roof curb and base rail inside the front and rear, 0.0 in. clearance between the roof curb and the base rail inside on the duct end of the unit. This will result in the distance between the roof curb and the base rail inside on the condenser end of the unit being approximately equal to Fig. 2, section C-C.

Locate mechanical draft system flue assembly at least 48 in.

from an adjacent building or combustible material. Units having accessory flue discharge deflector require only 18 in.

clearance. When unit is located adjacent to public walkways, flue assembly must be at least 7 ft above grade.

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

Adequate combustion and ventilation 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 per NFGC (National Fuel

Gas Code), ANSI (American National Standards Institute)

Z223.1-latest year and addendum Z223.1A-latest year. In

Canada, installation must be in accordance 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.

V. 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 and screen in location shown in Fig. 7 and 8.

VI. 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-latest year and addendum Z223.1Alatest year entitled NFGC. 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 connection must not be less than 4.0 in. wg or greater than

13.0 in. wg while unit is operating. For liquid propane and high heat applications, the gas pressure must not be less than 5.0 in. wg or greater than 13.0 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. 9. For example, a 3 /

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. See Fig. 9 for typical pipe guide and locations of external manual gas shutoff valve.

CAUTION: When connecting the gas line to the unit gas valve, the installer MUST use a backup wrench to prevent valve damage.

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.

5. Weights include base unit without the Perfect Humidity™ dehumidification system. See Table 1 for additional unit operating weights with the Perfect Humidity system.

CAUTION:

All panels must be in place when rigging.

581B

090

102

120

150

Fig. 6 — Rigging Details

OPERATING

WEIGHT lb

870

kg in.

‘‘A’’ ‘‘B’’ mm in.

mm in.

‘‘C’’ mm

395 77.42

1967 41.5

1054 42.12

1070

1015

1035

1050

460

469

476

77.42

77.42

77.42

1967

1967

1967

41.5

41.5

41.5

1054

1054

1054

42.12

50.12

50.12

1070

1273

1273

— 5 —

— 6 —

UNIT SIZE 581B

NOMINAL CAPACITY (tons)

OPERATING WEIGHT (lb)

Unit

Perfect Humidity™ Dehumidification System

EconoMi$er IV

Roof Curb

COMPRESSOR

Quantity

Oil (oz) (each compressor)

REFRIGERANT TYPE

Expansion Device

Operating Charge (lb-oz)

Standard Unit

Circuit 1

Circuit 2

Unit With Perfect Humidity Dehumidification System

Circuit 1

Circuit 2

CONDENSER FAN

Quantity...Diameter (in.)

Nominal Cfm

Motor Hp...Rpm

Watts Input (Total)

CONDENSER COIL

Rows...Fins/in.

Total Face Area (sq ft)

EVAPORATOR COIL

Standard Unit

Rows...Fins/in.


Unit with Perfect Humidity Dehumidification System

Rows...Fins/in.


EVAPORATOR FAN

Size (in.)

Type Drive

Nominal Cfm

Maximum Continuous Bhp Std

Hi-Static

Motor Frame

Fan Rpm Range Std

Hi-Static

Motor Bearing Type

Maximum Fan Rpm

Motor Pulley Pitch Diameter

A/B (in.)

Nominal Motor Shaft Diameter (in.)

Fan Pulley Pitch Diameter (in.)

Std

Hi-Static

Belt — Type...Length (in.)

Std

Hi-Static

Std

Hi-Static

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

Factory Speed Setting (rpm)

Std

Hi-Static

Std

Hi-Static

Std

Hi-Static

Std

Hi-Static

Fan Shaft Diameter at Pulley (in.)

LEGEND

Bhp — Brake Horsepower

Table 1 — Physical Data

090

7 1 /

2

870

44

75

143

2

53

102

8 1 /

2

1015

51

75

143

2

50

Scroll

R-22

Metering Device

120

10

1035

51

75

143

2

50

150

12 1 /

2

1050

51

75

143

2

60

15 x 15

Belt

3000

2.90

4.20

56

840-1085

860-1080

Ball

2100

3.4/4.4

4.0/5.0

7 /

8

7.0

8.0

A...48

A...55

16.75-19.25

50

60

5

5

5

5

840

860

1

7-10

8- 2

3...15

8.9

2...17

6.3

9- 8

8-13

9-6

10-9

13-0

13-6

2...22

6500

1

/

4

...1100

650

2...17

20.5

16-0

16-8

16-8

17-8

Propeller

2...22

6500

1

/

4

...1100

650

2...22

7000

1

/

4

...1100

650

Enhanced Copper Tubes, Aluminum Lanced Fins

2...17

2...17

25.0

25.0

Enhanced Copper Tubes, Aluminum Double-Wavy Fins, Face-Split

4...15

11.1

4...15

11.1

1

9-8

9-5

15-3

16-6

2...22

7000

/

4

...1100

650

2...17

25.0

4...15

11.1

2...17

8.4

15 x 15

Belt

3400

2.90

4.20

56

840-1085

860-1080

Ball

2100

3.4/4.4

4.0/5.0

7 /

8

7.0

8.0

A...48

A...55

16.75-19.25

50

60

5

5

5

5

840

860

1

Centrifugal

2...17

8.4

2...17

8.4

15 x 15

Belt

4000

3.70

5.25

56

860-1080

830-1130

Ball

2100

4.0/5.0

2.8/3.8

7 /

8

8.0

5.8

A...51

BX...46

15.85-17.50

45

60

5

6

5

5

860

890

1

*Indicates automatic reset.

†An LP (liquid propane) kit is available as an accessory. Kit may be used at elevations as high as 2000 ft.

15 x 15

Belt

5000

5.25

—

56

830-1130

—

Ball

2100

2.8/3.8

7

—

/

8

5.8

—

BX...46

—

15.85-17.50

60

—

6

—

5

—

887

—

1

— 7 —

UNIT SIZE 581B

FURNACE SECTION

Rollout Switch Cutout Temp (F)*

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

Natural Gas — Std

Liquid Propane — Alt†

Thermostat Heat Anticipator Setting (amps)

Stage 1

Gas Input (Btuh)

Stage 2

Stage 1

Stage 2

Efficiency (Steady State) (%)

Temperature Rise Range

Manifold Pressure (in. wg)

Natural Gas — Std

Liquid Propane — Alt†

Field Gas Connection Size (in.)

LOW

MED

HI

LOW

MED

HI

LOW

MED

HI

LOW

MED

HI

LOW

MED

HI

LOW

MED

HI

LOW

MED

HI

LOW

MED

HI

HEAT

LOW

MED

HI

Table 1 — Physical Data (cont)

090

195

3.5

3.5

.50

.75

.75

.120...31

.120...31

.120...31

.096...41

.096...41

.096...41

.14

.14

.14

.14

.20

.20

90,000

120,000

180,000

125,000

180,000

224,000

82

82

82

20-50

35-65

45-75

102

195

3.5

3.5

.50

.75

.75

.120...31

.120...31

.120...31

.096...41

.096...41

.096...41

.14

.14

.14

.14

.20

.20

90,000

120,000

180,000

125,000

180,000

224,000

82

82

82

20-50

35-65

45-75

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

RETURN-AIR FILTERS

Quantity...Size (in.)

LEGEND


450 ± 50

428

320

120

195

3.5

3.5

.75

.75

.75

.120...31

.120...31

.129...30

.096...41

.096...41

.102...38

.14

.14

.14

.20

.20

.20

120,000

180,000

200,000

180,000

224,000

250,000

82

82

80

35-65

35-65

40-70

7 ± 3

22 ± 7

4...16 x 20 x 2

30 ± 5

45 ± 5

Cleanable. Screen size and quantity varies with option selected.

4...20 x 20 x 2

Throwaway

4...20 x 20 x 2 4...20 x 20 x 2

*Indicates automatic reset.

†An LP (liquid propane) kit is available as an accessory. Kit may be used at elevations as high as 2000 ft.

150

195

.120...31

.129...30

.096...41

.102...38

.14

.14

.20

.20

180,000

200,000

224,000

250,000

82

80

35-65

40-70

3.5

3.5

.75

.75

— 8 —

Fig. 8 — Flue Hood Details

LEGEND

NFGC — National Fuel Gas Code

*Field supplied.

NOTE: Follow all local codes.

STEEL PIPE NOMINAL

DIAMETER (in.)

1 /

2

3 /

4 or 1

1

1 /

4

or larger

SPACING OF SUPPORTS

X DIMENSION (ft)

6

8

10

Fig. 9 — Gas Piping Guide (With Accessory

Thru-the-Curb Service Connections)

VII. STEP 7 — MAKE ELECTRICAL CONNECTIONS

WARNING: 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 codes. Do not

use gas piping as an electrical ground. Failure to follow this warning could result in the installer being liable for personal injury of others.

A. Field Power Supply

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 orange wire on the transformer and connecting it to the 200-v red wire from the transformer. The orange wire then must be insulated.

— 9 —

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. In Canada, electrical connections must be in accordance with CSA (Canadian Standards Association) C22.1

Canadian Electrical Code Part One.

Install conduit through side panel openings indicated in

Fig. 7. Route power lines through connector to terminal connections as shown in Fig. 10.

On 3-phase units, voltages between phases must be balanced within 2% and the current within 10%. Use the formula shown in Note 3 under Tables 2A-2D to determine the percentage of 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 Bryant warranty.

NOTE: If thru-the-bottom accessory connections are used, refer to the thru-the-bottom accessory installation instructions for power wiring. Refer to Fig. 7 for location to drill holes in basepan.

B. Field Control Wiring

Install a Bryant-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 thermostat subbase terminals to low-voltage connections on unit (shown in Fig. 11) as described in Steps 1-4 below.

1. If mounted on a roof curb and electrical power is to be run through the basepan, an accessory thru-thebottom connection kit is required. This is available through the local Bryant distributor. This kit is required to ensure a reliable water-tight connection.

2. If unit is mounted on roof curb and accessory thruthe-bottom connections are used, route wire through connection plate.

3. Pass control wires through the hole provided on unit

(see connection D, Connection Sizes table, Fig. 7).

4. 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. 12. The raceway provides the

UL-required clearance between high-voltage and lowvoltage wiring.

5. Connect thermostat wires to screw terminals of lowvoltage connection board (see Fig. 11).

NOTE: For wire runs up to 50 ft, use no. 18 AWG (American

Wire Gage) insulated wire (35 C minimum). For 51 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).

NOTE: All wire larger than no. 18 AWG cannot be directly connected to the thermostat and will require a junction box and splice at the thermostat.

C. Heat Anticipator Settings

On 581B090 and 102 units, set heat anticipator settings at

0.14 amp for both first and second stage heating for low heat.

For all other unit sizes, set heat anticipator settings at 0.14 amp for first stage and 0.20 amp for second-stage heating.

Fig. 10 — Power Wiring Connections

LEGEND

C

— Contactor

COMPS — Compressors

IFC

— Indoor (Evaporator) Fan

Contactor

NEC

TB

— National Electrical Code

— Terminal Block

Terminal Block

Connection

Field Wiring

Factory Wiring

COOL STAGE 1

FAN

HEAT STAGE 1

COOL STAGE 2

HEAT STAGE 2

24 VAC HOT

Y1/W2

G

W/W1

Y/Y2

O/W2

R

W1

W2

C

IPD/X

R

G

Y1

Y2

WIRE

CONNECTIONS

TO

LOW-VOLTAGE

SECTION

24 VAC COM

N/A

OUTDOOR AIR

SENSOR

C

S1

S2

THERMOSTAT DIPSWITCH SETTINGS

ON

OFF

A B C D

LEGEND

Field Wiring

NOTE: Underlined letter indicates active thermostat output when configured for A/C operation.

Fig. 11 — Standard Low-Voltage Connections

— 10 —

Fig. 12 — Field Control Wiring Raceway

UNIT

581B

090

(7

1

/

2

Tons)

(8 1 /

2

102

Tons)

120

(10 Tons)

(12 1 /

150

2

Tons)

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

NOMINAL VOLTAGE

(V-Ph-Hz)

208/230-3-60

460-3-60

575-3-60

208/230-3-60

460-3-60

575-3-60

208/230-3-60

460-3-60

575-3-60

208/230-3-60

460-3-60

575-3-60

VOLTAGE

RANGE

187

414

518

187

414

518

Min Max

187

414

254

508

518

187

414

518

632

254

508

632

254

508

632

254

508

632

Qty

COMPRESSOR

(each)

2

2

2

2

17.6

8.3

6.3

19.0

9.0

7.4

RLA

12.4

6.4

4.8

13.4

7.4

6.4

LRA

88.0

44.0

34.0

105.0

55.0

44.0

125.0

62.5

50.0

156.0

75.0

54.0

OFM

(each)

1.4

0.7

0.7

1.4

0.7

0.7

FLA

1.4

0.7

0.7

1.4

0.7

0.7

IFM

10.6

4.8

4.8

15.0

7.4

7.4

FLA

7.5

3.4

3.4

7.5

3.4

3.4

COMBUSTION

FAN MOTOR

.60

.30

.30

.60

.30

.30

FLA

.60

.30

.30

.60

.30

.30

POWER

SUPPLY*

MCA

38.2/38.2

19.2

14.6

40.2/40.2

21.5

18.2

53/53

24.9

19.1

60.6/60.6

29.1

23.7

MOCP**

45/45

25

20

45/45

25

20

60/60

30

25

70/70††

35

30

23

19

56/56

26

20

64/64

31

25

MINIMUM UNIT

DISCONNECT

SIZE†

FLA LRA

40/40

20

15

42/42

242/242

121

95

276/276

143

115

341/341

171

136

426/426

207

154

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

UNIT

581B

NOMINAL VOLTAGE

(V-Ph-Hz)

(7

(8

102

1

/

2

Tons)

(10 Tons)

(12

1

1

/

/

090

2

Tons)

120

150

2

Tons)

208/230-3-60

460-3-60

575-3-60

208/230-3-60

460-3-60

575-3-60

208/230-3-60

460-3-60

575-3-60

208/230-3-60

460-3-60

575-3-60

LEGEND

FLA

— Full Load Amps

HACR — Heating, Air Conditioning and

IFM

Refrigeration

— Indoor (Evaporator) Fan Motor

LRA

— Locked Rotor Amps

MCA

— Minimum Circuit Amps

MOCP — Maximum Overcurrent Protection

NEC


OFM

— Outdoor (Condenser) Fan Motor

RLA

— Rated Load Amps

UL

— Underwriters’ Laboratories

VOLTAGE

RANGE

187

414

518

187

414

518

Min

187

414

518

187

414

518

254

508

632

254

508

632

Max

254

508

632

254

508

632

Qty

2

2

2

2

COMPRESSOR

(each)

17.6

8.3

6.3

19.0

9.0

7.4

RLA

12.4

6.4

4.8

13.4

7.4

6.4

*The values listed in this table do not include power exhaust. See table at right for power exhaust requirements.

†Used to determine minimum disconnect per NEC.

**Fuse or HACR circuit breaker.

††Fuse only.

NOTES:

1. In compliance with NEC requirements for multimotor and combination load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device for the unit shall be fuse or HACR breaker. The UL, Canada units may be fuse or circuit breaker.

2. Electrical data based on 95 F ambient outdoor-air temperature ± 10% voltage.

3. Unbalanced 3-Phase Supply Voltage

Never operate a motor where a phase imbalance in supply voltage is greater than 2%. Use the following formula to determine the percent of voltage imbalance.

% Voltage Imbalance

= 100 x max voltage deviation from average voltage average voltage

Example: Supply voltage is 460-3-60.

AB = 452 v

BC = 464 v

AC = 455 v

Average Voltage =

452 + 464 + 455

3

LRA

88.0

44.0

34.0

105.0

55.0

44.0

125.0

62.5

50.0

156.0

75.0

54.0

=

1371

3

=

457

OFM

(each)

1.4

0.7

0.7

1.4

0.7

0.7

FLA

1.4

0.7

0.7

1.4

0.7

0.7

IFM

10.6

4.8

4.8

15.0

7.4

7.4

FLA

7.5

3.4

3.4

7.5

3.4

3.4

COMBUSTION

FAN MOTOR

FLA

.60

.30

.60

.30

.30

.60

.30

.60

.30

.30

.30

.30

POWER

SUPPLY

WITH OUTLET*

MCA MOCP**

44.2/44.2

21.9

16.8

46.2/46.2

50/50

25

20

50/50

24.2

20.4

59/59

27.6

21.3

66.6/66.6

31.8

25.9

30

25

70/70††

30

25

70/70††

35

30

25

21

61/61

29

22

70/70

33

27

MINIMUM UNIT

DISCONNECT

SIZE†

FLA LRA

46/46

23

17

48/48

247/247

123

95

281/281

145

116

345/345

173

138

431/431

209

156

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

7

457

= 1.53%

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

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

POWER EXHAUST ELECTRICAL DATA

POWER EXHAUST

PART NO.

CRPWREXH021A01

CRPWREXH022A01

CRPWREXH023A01

CRPWREXH028A01

CRPWREXH029A01

CRPWREXH030A01

MCA

(230 v)

N/A

3.3

N/A

1.7

N/A

1.6

MCA

(460 v)

0.9

N/A

1.8

N/A

1.0

N/A

MCA

(575 v)

N/A

1.32

N/A

0.68

N/A

0.64

MOCP

(for separate power source)

15

15

15

15

15

15

N/A — Not available

NOTE: If a single power source is to be used, size wire to include power exhaust

MCA and MOCP.

Check MCA and MOCP when power exhaust is powered through the unit. Determine the new MCA including the power exhaust using the following formula:

MCA New = MCA unit only + MCA of Power Exhaust

For example, using a 581B090 unit with MCA = 38.2 and MOCP = 45, with

CRPWREXH030A01 power exhaust.

MCA New = 38.2 amps + 3.3 amps = 41.5 amps

If the new MCA does not exceed the published MOCP, then MOCP would not change. The MOCP in this example is 45 amps and the MCA New is below 45; therefore the MOCP is acceptable. If “MCA New” is larger than the published

MOCP, raise the MOCP to the next larger size. For separate power, the MOCP for the power exhaust will be 15 amps per NEC.

— 11 —

UNIT

581B

090

102

120

Table 2C — Electrical Data (High-Static Motor Units Without Electrical Convenience Outlet)

NOMINAL

VOLTAGE

(V-Ph-Hz)

208/230-3-60

460-3-60

575-3-60

208/230-3-60

460-3-60

575-3-60

208/230-3-60

460-3-60

575-3-60

VOLTAGE

RANGE

Min

187

414

632

187

414

518

187

414

518

Max

254

508

518

254

508

632

254

508

632

Qty

COMPRESSOR

(each)

2

2

2

RLA

12.4

6.4

4.8

13.4

7.4

6.4

17.6

8.3

6.3

LRA

88.0

44.0

34.0

105.0

55.0

44.0

125.0

62.5

50.0

OFM

(each)

FLA

1.4

0.7

0.7

1.4

0.7

0.7

1.4

0.7

0.7

IFM

FLA

10.6

4.8

4.8

10.6

4.8

4.8

15.0

7.4

7.4

COMBUSTION

FAN MOTOR

RLA

0.6

0.3

0.3

0.6

0.3

0.3

0.6

0.3

0.3

MCA

41.3

20.6

15.8

43.3

22.9

18.2

57.4

27.5

21.7

POWER

SUPPLY*

MOCP**

45

25

20

50

25

20

70††

30

25

24

19

61

29

23

MINIMUM UNIT

DISCONNECT

SIZE†

FLA LRA

44

22

17

46

267

134

104

301

156

115

364

182

146

Table 2D — Electrical Data (High-Static Motor Units With Electrical Convenience Outlet)

UNIT

581B

090

102

120

NOMINAL

VOLTAGE

(V-Ph-Hz)

208/230-3-60

460-3-60

575-3-60

208/230-3-60

460-3-60

575-3-60

208/230-3-60

460-3-60

575-3-60

VOLTAGE

RANGE

Min

187

414

518

187

414

518

187

414

518

Max

254

508

632

254

508

632

254

508

632

LEGEND

FLA

— Full Load Amps

HACR — Heating, Air Conditioning and

Refrigeration

IFM

— Indoor (Evaporator) Fan Motor

LRA

— Locked Rotor Amps

MCA

— Minimum Circuit Amps

MOCP — Maximum Overcurrent Protection

NEC


OFM

— Outdoor (Condenser) Fan Motor

RLA

— Rated Load Amps

UL

— Underwriters’ Laboratories

Qty

2

2

2

COMPRESSOR

(each)

RLA

12.4

6.4

4.8

13.4

7.4

6.4

17.6

8.3

6.3

LRA

88.0

44.0

34.0

105.0

55.0

44.0

125.0

62.5

50.0

*The values listed in this table do not include power exhaust. See table at right for power exhaust requirements.

†Used to determine minimum disconnect per NEC.

**Fuse or HACR circuit breaker.

††Fuse only.

NOTES:

1. In compliance with NEC requirements for multimotor and combination load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device for the unit shall be fuse or HACR breaker. The UL, Canada units may be fuse or circuit breaker.

2. Electrical data based on 95 F ambient outdoor-air temperature ± 10% voltage.

3. Unbalanced 3-Phase Supply Voltage

Never operate a motor where a phase imbalance in supply voltage is greater than 2%. Use the following formula to determine the percent of voltage imbalance.

% Voltage Imbalance

= 100 x max voltage deviation from average voltage average voltage

Example: Supply voltage is 460-3-60.

AB = 452 v

BC = 464 v

AC = 455 v

Average Voltage =

452 + 464 + 455

3

OFM

(each)

FLA

1.4

0.7

0.7

1.4

0.7

0.7

1.4

0.7

0.7

=

1371

3

=

457

IFM

FLA

10.6

4.8

4.8

10.6

4.8

4.8

15.0

7.4

7.4

COMBUSTION

FAN MOTOR

RLA

0.6

0.3

0.3

0.6

0.3

0.3

0.6

0.3

0.3

MCA

47.3

23.3

17.9

49.3

25.6

21.5

63.4

30.2

23.4

POWER

SUPPLY*

MOCP**

50

25

20

60

30

25

70††

35

25

51

27

22

66

32

25

MINIMUM UNIT

DISCONNECT

SIZE†

FLA LRA

49

24

19

271

136

104

305

158

126

369

184

148

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.

7

% Voltage Imbalance = 100 x

457

= 1.53%

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

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

POWER EXHAUST ELECTRICAL DATA

POWER EXHAUST

PART NO.

CRPWREXH021A01

CRPWREXH022A01

CRPWREXH023A01

CRPWREXH028A01

CRPWREXH029A01

CRPWREXH030A01

MCA

(230 v)

N/A

3.3

N/A

1.7

N/A

1.6

MCA

(460 v)

0.9

N/A

1.8

N/A

1.0

N/A

MCA

(575 v)

N/A

1.32

N/A

0.68

N/A

0.64

MOCP

(for separate power source)

15

15

15

15

15

15

N/A — Not available

NOTE: If a single power source is to be used, size wire to include power exhaust

MCA and MOCP.

Check MCA and MOCP when power exhaust is powered through the unit. Determine the new MCA including the power exhaust using the following formula:

MCA New = MCA unit only + MCA of Power Exhaust

For example, using a 581B090 unit with MCA = 38.2 and MOCP = 45, with

CRPWREXH030A01 power exhaust.

MCA New = 38.2 amps + 3.3 amps = 41.5 amps

If the new MCA does not exceed the published MOCP, then MOCP would not change. The MOCP in this example is 45 amps and the MCA New is below 45; therefore the MOCP is acceptable. If “MCA New” is larger than the published

MOCP, raise the MOCP to the next larger size. For separate power, the MOCP for the power exhaust will be 15 amps per NEC.

— 12 —

VIII. STEP 8 — ADJUST FACTORY-INSTALLED OPTIONS

A. Disconnect Switch

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

B. Perfect Humidity™ Dehumidification System

Perfect Humidity system operation can be controlled by field installation of a Bryant-approved humidistat (Fig. 13), or light commercial Thermidistat™ device (Fig. 14). To install the humidistat:

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

2. 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. 12. The raceway provides the

UL-required clearance between high-voltage and lowvoltage wiring.

3. Use a wire nut to connect humidistat cable into lowvoltage wiring as shown in Fig. 15.

To install Thermidistat device:

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

2. Feed the 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. 12. The raceway provides the

UL-required clearance between high and low voltage wiring.

3. A field-supplied relay must be installed between the

Thermidistat device and the Perfect Humidity circuit

(recommended relay: HN612KK324). See Fig. 16. The relay coil is connected between the DEHUM output and C (common) of the unit. The relay controls the

Perfect Humidity solenoid valve and must be wired between the Perfect Humidity fuse and the low-pressure switch. Refer to the installation instructions included with the Bryant Light Commercial Thermidistat device for more information.

% RELATIVE HUMIDITY

Fig. 13 — Accessory Field-Installed Humidistat

Fig. 14 — Light Commercial Thermidistat Device

CB

CR

DHR

DSV

HR

HU

LPS

LSV

LTLO

TB

— Circuit Breaker

— Cooling Relay

— Dehumidify Relay

— Discharge Solenoid Valve

— Heater Relay

— Humidistat

— Low Pressure Switch

— Liquid Solenoid Valve

— Low Temperature Lockout

— Terminal Block

LEGEND

TRAN

— Transformer

Field Splice

Terminal (Unmarked)

Splice

Factory Wiring

Field Control Wiring

Fig. 15 — Typical Perfect Humidity Dehumidification System Humidistat Wiring (208/230-v Unit Shown)

— 13 —

LCT

R

C

Y1

Y2

G

W1

W2

DEHUM

OC

R1

ROOF TOP UNIT

R

C

Y1

Y2

G

W1

W2

CB

3.2 AMPS

T STAT WIRES

PINK

RED

24 V

LEGEND

CB

— Circuit Breaker

LCT

— Light Commercial Thermidistat™ Device

LLSV — Liquid Line Solenoid Valve

LTLO — Low Temperature Lockout

R1

PINK

LTLO

PINK

FROM

PERFECT HUMIDITY

SYSTEM LLSV

PERFECT HUMIDITY SYSTEM

Fig. 16 — Typical Rooftop Unit with Perfect Humidity™ Dehumidification System with Thermidistat Device

C. Convenience Outlet

An optional convenience outlet provides power for rooftop use. For maintenance personnel safety, the convenience outlet power is off when the unit disconnect is off. Adjacent unit outlets may be used for service tools. An optional “Hot Outlet” is available from the factory as a special order item.

D. Manual Outdoor-Air Damper

The outdoor-air hood and screen are attached to the basepan at the bottom of the unit for shipping.

Assembly:

1. Determine quantity of ventilation required for building. Record amount for use in Step 8.

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 the filter access panel. Remove outdoor-air opening panel. Save panels and screws. See Fig. 17.

3. Separate hood and screen from basepan by removing the screws and brackets securing them. Save all screws and discard brackets.

4. Replace outdoor air opening panel with screws saved from Step 2.

5. Place hood on front of outdoor-air opening panel. See

Fig. 18 for hood details. Secure top of hood with the

6 screws removed in Step 3. See Fig. 19.

6. Remove and save 6 screws (3 on each side) from sides of the manual outdoor-air damper.

7. Align screw holes on hood with screw holes on side of manual outdoor-air damper. See Fig. 18 and 19.

Secure hood with 6 screws from Step 6.

8. Adjust minimum position setting of the damper blade by adjusting the manual outdoor-air adjustment screws on the front of the damper blade. See Fig. 17.

Slide blade vertically until it is in the appropriate position determined by Fig. 20. Tighten screws.

9. Remove and save screws currently on sides of hood.

Insert screens. Secure screens to hood using the screws. See Fig. 19.

10. Replace filter access panel. Ensure filter access panel slides along the tracks and is securely engaged.

OUTDOOR

AIR OPENING

PANEL

3 SCREWS

(SIDE)

Fig. 17 — Damper Panel with Manual

Outdoor-Air Damper Installed

Fig. 18 — Outdoor-Air Hood Details

— 14 —

HOOD

NOT

SHOWN)

Fig. 19 — Optional Manual Outdoor-Air Damper with Hood Attached

3. The indoor coil access panel will be used as the top of the hood. Remove the screws along the sides and bottom of the indoor coil access panel. See Fig. 24.

4. Swing out indoor coil access panel and insert the hood sides under the panel (hood top). Use the screws provided to attach the hood sides to the hood top. Use screws provided to attach the hood sides to the unit.

See Fig. 25.

5. Remove the shipping tape holding the economizer barometric relief damper in place.

6. Insert the hood divider between the hood sides. See

Fig. 25 and 26. Secure hood divider with 2 screws on each hood side. The hood divider is also used as the bottom filter rack for the aluminum filter.

7. Open the filter clips which are located underneath the hood top. Insert the aluminum filter into the bottom filter rack (hood divider). Push the filter into position past the open filter clips. Close the filter clips to lock the filter into place. See Fig. 26.

8. Caulk the ends of the joint between the unit top panel and the hood top. See Fig. 24.

9. Replace the filter access panel.

10. Install all EconoMi$er IV accessories. EconoMi$er IV wiring is shown in Fig. 27.

Barometric flow capacity is shown in Fig. 28. Outdoor air leakage is shown in Fig. 29. Return air pressure drop is shown in Fig. 30.

WIRING

HARNESS

ECONOMI$ER IV

CONTROLLER

OUTSIDE AIR

TEMPERATURE SENSOR

LOW AMBIENT

SENSOR

ACTUATOR

Fig. 20 — Outdoor-Air Damper Position Setting

E. Optional EconoMi$er IV

See Fig. 21 for EconoMi$er IV component locations.

NOTE: These instructions are for installing the optional

EconoMi$er IV only. Refer to the accessory EconoMi$er IV installation instructions when field installing an

EconoMi$er IV accessory.

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.

See Fig. 22.

2. The box with the economizer hood components is shipped in the compartment behind the economizer.

The EconoMi$er IV controller is mounted on top of the EconoMi$er IV in the position shown in Fig. 21.

To remove the component box from its shipping position, remove the screw holding the hood box bracket to the top of the economizer. Slide the hood box out of the unit. See Fig. 23.

IMPORTANT: If the power exhaust accessory is to be installed on the unit, the hood shipped with the unit will not be used and must be discarded. Save the aluminum filter

for use in the power exhaust hood assembly.

— 15 —

Fig. 21 — EconoMi$er IV Component Locations

FILTER ACCESS PANEL

INDOOR COIL ACCESS PANEL

Fig. 22 — Typical Access Panel Locations

TOP

PANEL

INDOOR COIL

ACCESS PANEL

Hood

Box

HOOD BOX

BRACKET

LEFT

HOOD

SIDE

SCREW

Fig. 23 — Hood Box Removal

40 3/8”

HOOD DIVIDER

Fig. 25 — Outdoor-Air Hood Construction

22 1/4”

SIDE

PANEL

INDOOR

COIL

ACCESS

PANEL

CAULK

HERE

TOP

SIDE

PANEL

INDOOR

COIL

ACCESS

PANEL

Fig. 24 — Indoor Coil Access Panel Relocation

FOR OCCUPANCY CONTROL

REPLACE JUMPER WITH

FIELD-SUPPLIED TIME CLOCK

DIVIDER

OUTSIDE

AIR

HOOD

CLEANABLE

ALUMINUM

FILTER

FILTER

BAROMETRIC

RELIEF

Fig. 26 — Filter Installation

FILTER

CLIP

LEGEND

DCV— Demand Controlled Ventilation

IAQ — Indoor Air Quality

LA — Low Ambient Lockout Device

OAT — Outdoor-Air Temperature

POT — Potentiometer

RAT — Return-Air Temperature

Potentiometer Defaults Settings:

Power Exhaust Middle

Minimum Pos.

Fully Closed

DCV Max.

DCV Set

Enthalpy

Middle

Middle

C Setting

NOTES:

1. 620 ohm, 1 watt 5% resistor should be removed only when using differential enthalpy or dry bulb.

2. If a separate field-supplied 24 v transformer is used for the IAQ sensor power supply, it cannot have the secondary of the transformer grounded.

3. For field-installed remote minimum position POT, remove black wire jumper between P and P1 and set control minimum position POT. to the minimum position.

Fig. 27 — EconoMi$er IV Wiring

— 16 —

2500

2000

1500

1000

500

0

0.05

0.15

STATIC PRESSURE (in. wg)

0.25

Fig. 28 — Barometric Relief Flow Capacity

SUPPLY AIR

TEMPERATURE

SENSOR

MOUNTING

LOCATION

SUPPLY AIR

TEMPERATURE

SENSOR

30

25

20

15

10

5

0

0.13 0.20 0.22 0.25 0.30 0.35 0.40 0.45 0.50


Fig. 29 — Outdoor Air Damper Leakage

6000

5000

4000

3000

2000

1000

0

0.05 0.10 0.15 0.20 0.25 0.30 0.35


Fig. 30 — Return Air Pressure Drop

Fig. 31 — Supply Air Sensor Location

Table 3 — Supply Air Sensor Temperature/Resistance

Values

TEMPERATURE (F)

–58

–40

–22

–4

14

32

50

68

77

86

104

122

140

158

176

185

194

212

230

248

257

266

284

302

RESISTANCE (ohms)

200,250

100,680

53,010

29,091

16,590

9,795

5,970

3,747

3,000

2,416

1,597

1,080

746

525

376

321

274

203

153

116

102

89

70

55

F. EconoMi$er IV Standard Sensors

Outdoor Air Temperature (OAT) Sensor

The outdoor air temperature sensor (HH57AC074) is a 10 to

20 mA device used to measure the outdoor-air temperature.

The outdoor-air temperature is used to determine when the

EconoMi$er IV can be used for free cooling. The sensor is factory-installed on the EconoMi$er IV in the outdoor airstream. See Fig. 21. The operating range of temperature measurement is 40 to 100 F.

Supply Air Temperature (SAT) Sensor

The supply air temperature sensor is a 3 K thermistor located at the inlet of the indoor fan. See Fig. 31. This sensor is factory installed. The operating range of temperature measurement is 0° to 158 F. See Table 3 for sensor temperature/resistance values.

The temperature sensor looks like an eyelet terminal with wires running to it. The sensor is located in the “crimp end” and is sealed from moisture.

Outdoor Air Lockout Sensor

The Economi$er IV is equipped with an ambient temperature lockout switch located in the outdoor airstream which is used to lock out the compressors below a 42 F ambient temperature. See Fig. 21.

— 17 —

G. EconoMi$er IV Control Modes

Determine the EconoMi$er IV control mode before set up of the control. Some modes of operation may require different sensors.

Refer to Table 4. The EconoMi$er IV is supplied from the factory with a supply air temperature sensor and an outdoor air temperature sensor. This allows for operation of the

EconoMi$er IV with outdoor air dry bulb changeover control.

Additional accessories can be added to allow for different types of changeover control and operation of the EconoMi$er

IV and unit.

Outdoor Dry Bulb Changeover

The standard controller is shipped from the factory configured for outdoor dry bulb changeover control. The outdoor air and supply air temperature sensors are included as standard. For this control mode, the outdoor temperature is compared to an adjustable set point selected on the control.

If the outdoor-air temperature is above the set point, the

EconoMi$er IV will adjust the outdoor-air dampers to minimum position. If the outdoor-air temperature is below the set point, the position of the outdoor-air dampers will be controlled to provide free cooling using outdoor air. When in this mode, the LED next to the free cooling set point potentiometer will be on. The changeover temperature set point is controlled by the free cooling set point potentiometer located

on the control. See Fig. 32. The scale on the potentiometer is

A, B, C, and D. See Fig. 33 for the corresponding temperature changeover values.

Differential Dry Bulb Control

For differential dry bulb control the standard outdoor dry bulb sensor is used in conjunction with an additional accessory dry bulb sensor (part number CRTEMPSN002A00). The accessory sensor must be mounted in the return airstream.

See Fig. 34. Wiring is provided in the EconoMi$er IV wiring harness. See Fig. 27.

In this mode of operation, the outdoor-air temperature is compared to the return-air temperature and the lower temperature airstream is used for cooling. When using this mode of changeover control, turn the enthalpy set point potentiometer fully clockwise to the D setting. See Fig. 32.

Table 4 — EconoMi$er IV Sensor Usage

APPLICATION

Outdoor Air Dry Bulb

Differential Dry Bulb

Single Enthalpy

Differential Enthalpy

ECONOMI$ER IV WITH OUTDOOR AIR

DRY BULB SENSOR

Accessories Required

None. The outdoor air dry bulb sensor is factory installed.

CRTEMPSN002A00*

HH57AC078

HH57AC078 and

CRENTDIF004A00*

CO

2

for DCV Control using a Wall-Mounted

CO

2

Sensor

CO

2

for DCV Control using a Duct-Mounted

CO

2

Sensor

33ZCSENCO2† and

33ZCASPCO2**

33ZCSENCO2

CRCBDIOX005A00††

*CRENTDIF004A00 and CRTEMPSN002A00 accessories are used on many different base units. As such, these kits may contain parts that will not be needed for installation.

†33ZCSENCO2 is an accessory CO

2

sensor.

**33ZCASPCO2 is an accessory aspirator box required for duct-mounted applications.

††CRCBDIOX005A00 is an accessory that contains both 33ZCSENCO2 and

33ZCASPCO2 accessories.

Outdoor Enthalpy Changeover

For enthalpy control, accessory enthalpy sensor (part number HH57AC078) is required. Replace the standard outdoor dry bulb temperature sensor with the accessory enthalpy sensor in the same mounting location. See Fig. 21. When the outdoor air enthalpy rises above the outdoor enthalpy changeover set point, the outdoor-air damper moves to its minimum position. The outdoor enthalpy changeover set point is set with the outdoor enthalpy set point potentiometer on the EconoMi$er IV controller. The set points are A, B,

C, and D. See Fig. 35. The factory-installed 620-ohm jumper must be in place across terminals SR and SR+ on the

EconoMi$er IV controller. See Fig. 21 and 36.

Differential Enthalpy Control

For differential enthalpy control, the EconoMi$er IV controller uses two enthalpy sensors (HH57AC078 and

CRENTDIF004A00), one in the outside air and one in the return air duct. The EconoMi$er IV controller compares the outdoor air enthalpy to the return air enthalpy to determine

EconoMi$er IV use. The controller selects the lower enthalpy air (return or outdoor) for cooling. For example, when the outdoor air has a lower enthalpy than the return air, the

EconoMi$er IV opens to bring in outdoor air for free cooling.

Replace the standard outside air dry bulb temperature sensor with the accessory enthalpy sensor in the same mounting location. See Fig. 21. Mount the return air enthalpy sensor in the return air duct. See Fig. 34. Wiring is provided in the

Fig. 32 — EconoMi$er IV Controller Potentiometer and LED Locations

19

13

12

11

18

17

16

15

14

LED ON

D

LED OFF

LED ON

C

LED OFF

LED ON

B

LED OFF

10

9

40 45

50

55 60 65 70 75 80

DEGREES FAHRENHEIT

LED ON

A

LED OFF

85 90 95

100

Fig. 33 — Outdoor Air Temperature Changeover Set Points

ECONOMI$ER IV

ECONOMI$ER IV

CONTROLLER

GROMMET

RETURN AIR

SENSOR

RETURN DUCT

(FIELD-PROVIDED)

Fig. 34 — Return Air Temperature or Enthalpy

Sensor Mounting Location

EconoMi$er IV wiring harness. See Fig. 27. The outdoor enthalpy changeover set point is set with the outdoor enthalpy set point potentiometer on the EconoMi$er IV controller. When using this mode of changeover control, turn the enthalpy setpoint potentiometer fully clockwise to the D setting.

— 18 —

Indoor Air Quality (IAQ) Sensor Input

The IAQ input can be used for demand control ventilation control based on the level of CO

2

measured in the space or return air duct.

Mount the accessory IAQ sensor according to manufacturer specifications. The IAQ sensor should be wired to the AQ and AQ1 terminals of the controller. Adjust the DCV potentiometers to correspond to the DCV voltage output of the indoor air quality sensor at the user-determined set point. See

Fig. 37.

If a separate field-supplied transformer is used to power the

IAQ sensor, the sensor must not be grounded or the

EconoMi$er IV control board will be damaged.

CONTROL

CURVE

C

D

A

B

14

1

6

CONTROL POINT

APPROX. °F (°C)

AT 50% RH

73 (23)

70 (21)

67 (19)

63 (17)

Y A

IR

HA

LP

Y—

26

BTU

28

P

ER

30

PO

UN

D DR

34

36

32

ENT

24

38

65

(18)

40

42

44

46

10

0

70

(21)

90

75

(24)

80

70

80

(27)

20

2

2

60

(16)

A

60

18

55

(13)

B

50

(10)

C

50

12

45

(7)

D

40

(4)

35

(2)

85

(29)

90

(32)

95

(35)

100

(38)

105

(41)

110

(43)

40

RELA

30

TIVE HUM

IDITY

20

(%

)

10

D

C

B

A

35

(2)

40

(4)

45

(7)

50

(10)

55

(13)

60

(16)

65

(18)

70

(21)

75

(24)

80

(27)

APPROXIMATE DRY BULB TEMPERATURE— °F (°C)

85

(29)

90

(32)

95

(35)

100

(38)

105

(41)

110

(43)

Fig. 35 — Enthalpy Changeover Set Points

HIGH LIMIT

CURVE

N1

N

P1

P

T1

T

EXH

Set

10V 2V

EXH

Open

Min

Pos

AQ1

AQ

SO+

SO

SR+

SR

2V

DCV

Max

10V

DCV

2V

Free

Cool

B

DCV

Set

10V

C

A

D

TR

24

Vac

HOT

+

24 Vac

COM

_

1

3

EF

Fig. 36 — EconoMi$er IV Control

TR1

2

5

4

EF1

6000

5000

4000

3000

2000

800 ppm

900 ppm

1000 ppm

1100 ppm

1000

0

2 3 4 5 6 7 8

DAMPER VOLTAGE FOR MAX VENTILATION RATE

Fig. 37 — CO

2

Sensor Maximum Range Setting

— 19 —

Exhaust Set Point Adjustment

The exhaust set point will determine when the exhaust fan runs based on damper position (if accessory power exhaust is installed). The set point is modified with the Exhaust Fan

Set Point (EXH SET) potentiometer. See Fig. 32. The set point represents the damper position above which the exhaust fans will be turned on. When there is a call for exhaust, the EconoMi$er IV controller provides a 45 ±

15 second delay before exhaust fan activation to allow the dampers to open. This delay allows the damper to reach the appropriate position to avoid unnecessary fan overload.

Minimum Position Control

There is a minimum damper position potentiometer on the

EconoMi$er IV controller. See Fig. 32. The minimum damper position maintains the minimum airflow into the building during the occupied period.

When using demand ventilation, the minimum damper position represents the minimum ventilation position for VOC

(volatile organic compound) ventilation requirements. The maximum demand ventilation position is used for fully occupied ventilation.

When demand ventilation control is not being used, the minimum position potentiometer should be used to set the occupied ventilation position. The maximum demand ventilation position should be turned fully clockwise.

Adjust the minimum position potentiometer to allow the minimum amount of outdoor air, as required by local codes, to enter the building. Make minimum position adjustments with at least 10 F temperature difference between the outdoor and return-air temperatures.

To determine the minimum position setting, perform the following procedure:

1. Calculate the appropriate mixed-air temperature using the following formula:

(T

O

x

OA

100

) + (T

R

x

RA

100

) = T

M

T

O

= Outdoor-Air Temperature

OA = Percent of Outdoor Air

T

R

= Return-Air Temperature

RA = Percent of Return Air

T

M

= Mixed-Air Temperature

As an example, if local codes require 10% outdoor air during occupied conditions, outdoor-air temperature is 60 F, and return-air temperature is 75 F.

(60 x .10) + (75 x .90) = 73.5 F

2. Disconnect the supply air sensor from terminals T and T1.

3. Ensure that the factory-installed jumper is in place across terminals P and P1. If remote damper positioning is being used, make sure that the terminals are wired according to Fig. 27 and that the minimum position potentiometer is turned fully clockwise.

4. Connect 24 vac across terminals TR and TR1.

5. Carefully adjust the minimum position potentiometer until the measured mixed-air temperature matches the calculated value.

6. Reconnect the supply air sensor to terminals T and

T1.

Remote control of the EconoMi$er IV damper is desirable when requiring additional temporary ventilation. If a field-supplied remote potentiometer (Honeywell part number S963B1128) is wired to the EconoMi$er IV controller, the minimum position of the damper can be controlled from a remote location.

— 20 —

To control the minimum damper position remotely, remove the factory-installed jumper on the P and P1 terminals on the EconoMi$er IV controller. Wire the field-supplied potentiometer to the P and P1 terminals on the EconoMi$er IV controller. See Fig. 36.

Damper Movement

Damper movement from full open to full closed (or vice versa) takes 2 1 /

2

minutes.

Thermostats

The EconoMi$er IV control works with conventional thermostats that have a Y1 (cool stage 1), Y2 (cool stage 2), W1

(heat stage 1), W2 (heat stage 2), and G (fan). The

EconoMi$er IV control does not support space temperature sensors. Connections are made at the thermostat terminal connection board located in the main control box.

Occupancy Control

The factory default configuration for the EconoMi$er IV control is occupied mode. Occupied status is provided by the black jumper from terminal TR to terminal N. When unoccupied mode is desired, install a field-supplied timeclock function in place of the jumper between TR and N. See Fig. 27.

When the timeclock contacts are closed, the EconoMi$er IV control will be in occupied mode. When the timeclock contacts are open (removing the 24-v signal from terminal N), the EconoMi$er IV will be in unoccupied mode.

Demand Controlled Ventilation (DCV)

When using the EconoMi$er IV for demand controlled ventilation, there are some equipment selection criteria which should be considered. When selecting the heat capacity and cool capacity of the equipment, the maximum ventilation rate must be evaluated for design conditions. The maximum damper position must be calculated to provide the desired fresh air.

Typically the maximum ventilation rate will be about 5 to

10% more than the typical cfm required per person, using normal outside air design criteria.

A proportional anticipatory strategy should be taken with the following conditions: a zone with a large area, varied occupancy, and equipment that cannot exceed the required ventilation rate at design conditions. Exceeding the required ventilation rate means the equipment can condition air at a maximum ventilation rate that is greater than the required ventilation rate for maximum occupancy. A proportionalanticipatory strategy will cause the fresh air supplied to increase as the room CO

2

level increases even though the

CO

2

set point has not been reached. By the time the CO

2 level reaches the set point, the damper will be at maximum ventilation and should maintain the set point.

In order to have the CO

2

sensor control the economizer damper in this manner, first determine the damper voltage output for minimum or base ventilation. Base ventilation is the ventilation required to remove contaminants during unoccupied periods. The following equation may be used to determine the percent of outside-air entering the building for a given damper position. For best results there should be at least a 10 degree difference in outside and return-air temperatures.

(T

O

x

OA

100

) + (T

R

x

RA

100

) = T

M

T

O

= Outdoor-Air Temperature

OA = Percent of Outdoor Air

T

R

= Return-Air Temperature

RA = Percent of Return Air

T

M

= Mixed-Air Temperature

Once base ventilation has been determined, set the minimum damper position potentiometer to the correct position.

The same equation can be used to determine the occupied or maximum ventilation rate to the building. For example, an output of 3.6 volts to the actuator provides a base ventilation rate of 5% and an output of 6.7 volts provides the maximum ventilation rate of 20% (or base plus 15 cfm per person). Use

Fig. 37 to determine the maximum setting of the CO

2

sensor.

For example, a 1100 ppm set point relates to a 15 cfm per person design. Use the 1100 ppm curve on Fig. 37 to find the point when the CO

2

sensor output will be 6.7 volts. Line up the point on the graph with the left side of the chart to determine that the range configuration for the CO

2

sensor should be 1800 ppm. The EconoMi$er IV controller will output the

6.7 volts from the CO

2

sensor to the actuator when the CO

2 concentration in the space is at 1100 ppm. The DCV set point may be left at 2 volts since the CO

2

sensor voltage will be ignored by the EconoMi$er IV controller until it rises above the 3.6 volt setting of the minimum position potentiometer.

Once the fully occupied damper position has been determined, set the maximum damper demand control ventilation potentiometer to this position. Do not set to the maximum position as this can result in over-ventilation to the space and potential high-humidity levels.

CO

2

Sensor Configuration

The CO

2

sensor has preset standard voltage settings that can be selected anytime after the sensor is powered up. See

Table 5.

Use setting 1 or 2 for Bryant equipment. See Table 5.

1. Press Clear and Mode buttons. Hold at least 5 seconds until the sensor enters the Edit mode.

2. Press Mode twice. The STDSET Menu will appear.

3. Use the Up/Down button to select the preset number.

See Table 5.

4. Press Enter to lock in the selection.

5. Press Mode to exit and resume normal operation.

The custom settings of the CO

2

sensor can be changed anytime after the sensor is energized. Follow the steps below to change the non-standard settings:

1. Press Clear and Mode buttons. Hold at least 5 seconds until the sensor enters the Edit mode.

2. Press Mode twice. The STDSET Menu will appear.

3. Use the Up/Down button to toggle to the NONSTD menu and press Enter.

4. Use the Up/Down button to toggle through each of the nine variables, starting with Altitude, until the desired setting is reached.

5. Press Mode to move through the variables.

6. Press Enter to lock in the selection, then press Mode to continue to the next variable.

Dehumidification of Fresh Air with DCV Control

Information from ASHRAE indicates that the largest humidity load on any zone is the fresh air introduced. For some applications, an energy recovery unit is added to reduce the moisture content of the fresh air being brought into the building when the enthalpy is high. In most cases, the normal heating and cooling processes are more than adequate to remove the humidity loads for most commercial applications.

If normal rooftop heating and cooling operation is not adequate for the outdoor humidity level, an energy recovery unit and/or a dehumidification option should be considered.

SETTING EQUIPMENT

3

4

1

2

Interface w/Standard

Building Control System

5

6

Economizer

7

8

9

Health & Safety

Parking/Air Intakes/

Loading Docks

LEGEND

ppm — Parts Per Million

OUTPUT

Table 5 — CO

2

Sensor Standard Settings

Proportional

Proportional

Exponential

Proportional

Proportional

Exponential

Exponential

Proportional

Proportional

VENTILATION

RATE

(cfm/Person)

Any

Any

Any

15

20

15

20

—

—

ANALOG

OUTPUT

0-10V

4-20 mA

2-10V

7-20 mA

0-10V

4-20 mA

0-10V

4-20 mA

0-10V

4-20 mA

0-10V

4-20 mA

0-10V

4-20 mA

0-10V

4-20 mA

0-10V

4-20 mA

CO

2

CONTROL RANGE

(ppm)

0-2000

0-2000

0-2000

0-1100

0- 900

0-1100

0- 900

0-9999

0-2000

OPTIONAL

RELAY SETPOINT

(ppm)

1000

1000

1100

1100

900

1100

900

5000

700

RELAY

HYSTERESIS

(ppm)

50

50

50

50

50

50

50

500

50

— 21 —

IX. STEP 9 — ADJUST EVAPORATOR-FAN SPEED

Adjust evaporator-fan speed to meet jobsite conditions.

Tables 6A and 6B show fan rpm at motor pulley settings for standard and alternate motors. See Fig. 38 for Perfect

Humidity™ system static pressure drop. See Table 7 for

EconoMi$er IV system static pressure drop. See Tables 8A and 8B for evaporator fan motor performance. Refer to

Tables 9-22 to determine fan speed settings. Fan motor pulleys are factory set for speed shown in Table 1.

NOTE: Before adjusting fan speed, make sure the new fan speed will provide an acceptable air temperature rise range on heating as shown in Table 1.

To change fan speed:

1. Shut off unit power supply.

2. Loosen belt by loosening fan motor mounting nuts.

See Fig. 39 and 40.

3. Loosen movable pulley flange setscrew (see Fig. 41).

4. Screw movable flange toward fixed flange to increase fan speed and away from fixed flange to decrease fan 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 each full turn of pulley flange.)

To align fan and motor pulleys:

1. Loosen fan pulley setscrews.

2. Slide fan pulley along fan shaft.

3. Make angular alignment by loosening motor from mounting plate.

To adjust belt tension:

1. Loosen fan motor mounting nuts.

2. Sizes 090 and 102 — Slide motor mounting plate away from fan scroll for proper belt tension (

1

/

2

-in.

deflection with one finger) and tighten mounting nuts

(see Fig. 39).

Sizes 120 and 150 — Slide motor mounting plate downward to tighten belt tension. Secure motor mounting plate nuts. See Fig. 40.

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

MOTOR MOUNTING

PLATE NUTS

Fig. 39 — Typical Belt-Drive Motor Mounting for Sizes 090 and 102

0.35

0.3

0.25

0.2

0.15

0.1

0.05

0

0

1000 2000 3000

CFM

4000

5000 6000

Fig. 38 — Perfect Humidity Dehumidification System Static Pressure Drop (in. wg)

7.5 ton

8.5, 10 & 12.5 ton

— 22 —

Fig. 40 — Typical Belt-Drive Motor Mounting for Sizes 120 and 150

Fig. 41 — Evaporator-Fan Pulley Adjustment

UNIT 581B

090, 102

120

150

0

1085

1080

1130

*Approximate fan rpm shown.

1 /

2

1060

1060

1112

Table 6A — Fan Rpm at Motor Pulley Setting (Standard Motor)*

1

1035

1035

1087

1 1 /

2

1010

1015

1062

2

985

MOTOR PULLEY TURNS OPEN

2 1 /

2

3 3 1 /

2

960 935 910

990

1037

970

1012

950

987

925

962

4

890

905

937

4 1 /

2

865

880

912

5

840

860

887

5 1 /

2

—

—

862

6

—

—

830

UNIT 581B

090

102

120

0

1080

1080

1130

*Approximate fan rpm shown.

1 /

2

1025

1025

1112

Table 6B — Fan Rpm at Motor Pulley Setting (High-Static Motor)*

1

1007

1007

1087

1 1 /

2

988

988

1062

2

970

970

1037

MOTOR PULLEY TURNS OPEN

2 1 /

2

3 3 1 /

2

952

952

1012

933

933

987

915

915

962

4

897

897

937

4 1 /

2

878

878

912

5

860

860

887

5 1 /

2

—

—

862

6

—

—

830

Table 7 — Accessory/FIOP EconoMi$er IV Static Pressure* (in. wg)

COMPONENT

Vertical EconoMi$er IV

Horizontal EconoMi$er IV

LEGEND

FIOP — Factory-Installed Option

CFM

2250 2500 2750 3000 3250 3500 3750 4000 4250 4500 4750 5000 5250 6250

0.06

0.075

0.09

0.115

0.13

0.15

0.17

0.195

0.22

0.25

0.285

0.325

0.36

—

— 0.1

0.125

0.15

0.18

0.21

0.25

0.275

0.3

0.34

0.388

— — —

*The static pressure must be added to external static pressure. The sum and the evaporator entering-air cfm should be used in conjunction with the Fan Performance tables to determine indoor blower rpm and watts.

— 23 —

Table 8A — Evaporator-Fan Motor Performance — Standard Motor

UNIT

581B

090,102

120

150

UNIT

PHASE

Three

Three

Three

MAXIMUM

CONTINUOUS BHP*

2.90

3.70

5.25

MAXIMUM

OPERATING WATTS*

2615

3775

4400

UNIT VOLTAGE

208/230

460

575

208/230

460

575

208/230

460

575

LEGEND


*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 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.

Table 8B — Evaporator-Fan Motor Performance — High-Static Motors

UNIT

581B

UNIT

PHASE

MAXIMUM

CONTINUOUS BHP*

MAXIMUM

OPERATING WATTS*

UNIT VOLTAGE

090,102

120

Three

Three

4.20

5.25

3775

4400

LEGEND


*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 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.

208/230

460

575

208/230

460

575

MAXIMUM

AMP DRAW

8.6

3.9

3.9

12.2

5.5

5.5

17.3

8.5

8.5

MAXIMUM

AMP DRAW

12.2

5.5

5.5

17.3

8.5

8.5

GENERAL NOTES FOR FAN PERFORMANCE DATA TABLES

1. Values include losses for filters, unit casing, and wet coils. See

Fig. 38 and Table 7 for FIOP static pressure information.

2. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using the fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See Evaporator-Fan Motor Performance data in

Tables 8A and 8B for additional information.

3. Use of a field-supplied motor may affect wire sizing. Contact your

Bryant representative for details.

4. Interpolation is permissible. Do not extrapolate.

— 24 —

AIRFLOW

(Cfm)

2900

3000

3100

3200

3300

3400

3500

3600

3700

3750

2250

2300

2400

2500

2550

2600

2700

2800

Table 9 — Fan Performance 581B090 — Vertical Discharge Units; Standard Motor (Belt Drive)*

0.2

Bhp

0.90

0.98

1.07

1.16

1.26

1.36

1.47

1.59

0.54

0.57

0.63

0.69

0.72

0.76

0.83

1.71

1.84

1.91

Rpm

597

613

629

645

662

678

694

711

513

521

535

551

558

566

582

727

744

752

Watts

842

918

999

1085

1176

1272

1374

1482

505

531

584

642

673

705

771

1596

1716

1778

0.4

Bhp

1.16

1.25

1.35

1.45

1.55

1.66

1.78

1.90

0.76

0.79

0.86

0.93

0.97

1.00

1.08

2.03

2.17

2.24

Rpm

670

684

699

713

728

743

758

773

595

601

615

628

635

642

656

789

804

812

EXTERNAL STATIC PRESSURE (in. wg)

0.6

Watts

1086

1169

1256

1349

1448

1551

1660

1775

713

741

802

866

900

935

1008

1896

2023

2089

Rpm

734

748

761

775

788

802

816

831

665

671

684

696

702

709

721

845

860

867

Bhp

1.44

1.54

1.64

1.75

1.86

1.98

2.10

2.23

1.01

1.04

1.11

1.19

1.23

1.27

1.35

2.37

2.51

2.59

Watts

1347

1436

1530

1630

1734

1845

1961

2082

940

972

1038

1109

1146

1183

1263

2210

2343

2413

Rpm

793

805

818

831

844

857

870

884

728

734

745

757

763

769

781

897

911

—

0.8

Bhp

1.74

1.84

1.95

2.06

2.18

2.31

2.44

2.58

1.27

1.31

1.39

1.47

1.51

1.55

1.65

2.72

2.87

—

Watts

1625

1720

1820

1925

2036

2152

2275

2402

1187

1222

1293

1369

1409

1450

1535

2537

2677

—

Rpm

847

859

871

883

895

908

920

—

786

791

802

813

818

824

835

—

—

—

1.0

Bhp

2.06

2.16

2.28

2.40

2.52

2.65

2.79

—

1.56

1.60

1.68

1.77

1.81

1.86

1.95

—

—

—

Watts

1917

2019

2125

2235

2352

2475

2603

—

1453

1489

1566

1647

1689

1732

1823

—

—

—

AIRFLOW

(Cfm)

2900

3000

3100

3200

3300

3400

3500

3600

3700

3750

2250

2300

2400

2500

2550

2600

2700

2800

Rpm

839

844

854

865

870

875

886

897

908

920

931

943

—

—

—

—

—

—

1.2

Bhp

1.86

1.90

1.99

2.08

2.13

2.18

2.28

2.39

2.50

2.62

2.75

2.88

—

—

—

—

—

—

Watts

2227

2333

2443

2560

2682

—

—

—

1735

1773

1855

1940

1985

2031

2126

—

—

—

LEGEND

Bhp

— Brake Horsepower Input to Fan

Watts — Input Watts to Motor

Rpm

944

955

—

—

—

—

—

—

889

893

903

913

918

923

934

—

—

—

1.4

Bhp

2.18

2.22

2.32

2.41

2.46

2.51

2.62

2.73

2.85

—

—

—

—

—

—

—

—

—

*Motor drive range: 840 to 1085 rpm. All other rpms require fieldsupplied drive.

Watts

2550

2661

—

—

—

—

—

—

2032

2073

2159

2249

2296

2344

2445

—

—

—

Rpm

—

—

—

—

—

—

—

—

935

940

950

959

964

969

—

—

—

—


1.6

Bhp

—

—

—

—

—

—

—

—

2.52

2.56

2.66

2.76

2.81

2.87

—

—

—

—

Watts

—

—

—

—

—

—

—

—

2345

2389

2478

2573

2622

2673

—

—

—

—

Rpm

—

—

—

—

—

—

—

—

980

—

—

—

—

—

—

—

—

—

NOTES:

1.8

Bhp

2.87

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

Watts

—

—

—

—

—

—

—

—

2673

—

—

—

—

—

—

—

—

—

Rpm

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2.90.

3. See page 24 for General Fan Performance Notes.

2.0

Bhp

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

Watts

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

— 25 —

AIRFLOW

(Cfm)

2900

3000

3100

3200

3300

3400

3500

3600

3700

3750

2250

2300

2400

2500

2550

2600

2700

2800

Table 10 — Fan Performance 581B090 — Vertical Discharge Units; High-Static Motor (Belt Drive)*

0.2

Bhp

0.90

0.98

1.07

1.16

1.26

1.36

1.47

1.59

0.54

0.57

0.63

0.69

0.72

0.76

0.83

1.71

1.84

1.91

Rpm

597

613

629

645

662

678

694

711

513

521

535

551

558

566

582

727

744

752

Watts

842

918

999

1085

1176

1272

1374

1482

505

531

584

642

673

705

771

1596

1716

1778

0.4

Bhp

1.16

1.25

1.35

1.45

1.55

1.66

1.78

1.90

0.76

0.79

0.86

0.93

0.97

1.00

1.08

2.03

2.17

2.24

Rpm

670

684

699

713

728

743

758

773

595

601

615

628

635

642

656

789

804

812


0.6

Watts

1086

1169

1256

1349

1448

1551

1660

1775

713

741

802

866

900

935

1008

1896

2023

2089

Rpm

734

748

761

775

788

802

816

831

665

671

684

696

702

709

721

845

860

867

Bhp

1.44

1.54

1.64

1.75

1.86

1.98

2.10

2.23

1.01

1.04

1.11

1.19

1.23

1.27

1.35

2.37

2.51

2.59

Watts

1347

1436

1530

1630

1734

1845

1961

2082

940

972

1038

1109

1146

1183

1263

2210

2343

2413

Rpm

793

805

818

831

844

857

870

884

728

734

745

757

763

769

781

897

911

918

0.8

Bhp

1.74

1.84

1.95

2.06

2.18

2.31

2.44

2.58

1.27

1.31

1.39

1.47

1.51

1.55

1.65

2.72

2.87

2.95

Watts

1625

1720

1820

1925

2036

2152

2275

2402

1187

1222

1293

1369

1409

1450

1535

2537

2677

2750

Rpm

847

859

871

883

895

908

920

933

786

791

802

813

818

824

835

946

959

966

1.0

Bhp

2.06

2.16

2.28

2.40

2.52

2.65

2.79

2.93

1.56

1.60

1.68

1.77

1.81

1.86

1.95

3.09

3.24

3.32

Watts

1917

2019

2125

2235

2352

2475

2603

2737

1453

1489

1566

1647

1689

1732

1823

2877

3023

3100

AIRFLOW

(Cfm)

2900

3000

3100

3200

3300

3400

3500

3600

3700

3750

2250

2300

2400

2500

2550

2600

2700

2800

Rpm

1.2

Bhp

839 1.86

844 1.90

854 1.99

865 2.08

870 2.13

875 2.18

886 2.28

897 2.39

908 2.50

920 2.62

931 2.75

943 2.88

955 3.01

967 3.16

980 3.31

992

1005

1011

3.46

3.63

3.71

Watts

2227

2333

2443

2560

2682

2810

2945

3084

1735

1773

1855

1940

1985

2031

2126

3230

3383

3462

LEGEND

Bhp



Rpm

1.4

Bhp

889 2.18

893 2.22

903 2.32

913 2.41

918 2.46

923 2.51

934 2.62

944 2.73

955 2.85

966 2.98

977 3.11

989 3.25

1000 3.39

1012 3.54

1024 3.69

1036 3.86

1048 4.03

1054 4.11


Watts

2550

2661

2777

2899

3026

3159

3299

3445

2032

2073

2159

2249

2296

2344

2445

3596

3755

3836


Rpm

1.6

Bhp

935 2.52

940 2.56

950 2.66

959 2.76

964 2.81

969 2.87

979 2.98

989 3.10

1000 3.22

1010 3.35

1021 3.49

1032 3.63

1043 3.78

1055 3.93

1066 4.09

—

—

—

—

—

—

Watts

2888

3003

3123

3250

3383

3521

3667

3817

2345

2389

2478

2573

2622

2673

2777

—

—

—

Rpm

1.8

Bhp

980 2.87

984 2.91

993 3.02

1003 3.12

1008 3.18

1012 3.23

1022 3.35

1032 3.47

1042 3.60

1052 3.74

1063 3.88

1074 4.02

1084 4.18

—

—

—

—

—

—

—

—

—

—

NOTES:

Watts

3238

3358

3484

3615

3752

3896

—

—

2673

2718

2812

2911

2962

3014

3123

—

—

—




Rpm

2.0

Bhp

1022 3.23

1027 3.28

1035 3.39

1044 3.50

1049 3.55

1054 3.61

1063 3.74

1073 3.86

1083 4.00

1093 4.14

— —

—

—

—

—

—

—

—

—

—

—

—

—

—

—

Watts

3601

3725

3856

—

—

—

—

—

3015

3062

3159

3261

3315

3370

3483

—

—

—

— 26 —

AIRFLOW

(Cfm)

3300

3400

3500

3600

3700

3800

3900

4000

2500

2600

2700

2800

2900

3000

3100

3200

4100

4200

4300


0.2

Bhp

1.00

1.09

1.17

1.26

1.36

1.46

1.57

1.68

0.50

0.55

0.60

0.66

0.72

0.79

0.85

0.93

1.79

1.92

2.04

Rpm

663

679

695

711

728

744

760

777

541

556

571

586

601

616

632

648

793

810

826

Watts

936

1012

1092

1177

1266

1361

1460

1563

467

513

562

615

672

732

796

864

1672

1786

1906

0.4

Bhp

1.20

1.29

1.38

1.48

1.58

1.69

1.80

1.91

0.66

0.71

0.77

0.83

0.90

0.97

1.04

1.12

2.04

2.16

2.30

Rpm

731

745

760

774

789

804

819

834

624

637

650

663

676

689

703

717

850

865

880


0.6

Watts

1122

1203

1288

1379

1473

1572

1676

1785

614

665

720

777

839

904

972

1045

1899

2018

2142

Rpm

795

808

821

834

848

861

875

889

701

711

722

734

745

757

769

782

904

918

932

Bhp

1.41

1.50

1.60

1.70

1.81

1.92

2.04

2.16

0.83

0.89

0.95

1.02

1.09

1.16

1.24

1.32

2.29

2.42

2.56

Watts

1316

1402

1492

1587

1686

1790

1899

2012

771

827

885

948

1014

1083

1157

1235

2132

2255

2385

Rpm

855

867

879

891

904

916

929

942

771

781

790

800

811

821

832

843

956

969

983

0.8

Bhp

1.63

1.72

1.83

1.93

2.04

2.16

2.28

2.41

1.00

1.07

1.14

1.21

1.28

1.36

1.45

1.53

2.54

2.68

2.82

Watts

1517

1608

1703

1802

1906

2015

2128

2247

936

996

1059

1126

1197

1271

1349

1431

2371

2499

2633

Rpm

1.0

Bhp

837 1.19

845 1.26

854 1.33

863 1.41

872 1.49

882 1.57

892 1.66

902 1.75

912 1.85

923 1.95

934 2.06

945 2.17

957 2.29

969 2.41

981 2.53

993 2.67

1006 2.80

— —

— —

Watts

1725

1820

1920

2024

2132

2246

2364

2487

1109

1173

1241

1312

1387

1465

1548

1635

2615

—

—

AIRFLOW

(Cfm)

2500

2600

2700

2800

2900

3000

3100

3200

3300

3400

3500

3600

3700

3800

3900

4000

4100

4200

4300

Rpm

LEGEND

1.2

Bhp

900 1.38

907 1.46

914 1.53

922 1.61

931 1.70

939 1.79

948 1.88

957 1.98

967 2.08

977 2.19

987 2.30

998 2.41

1008 2.54

1019 2.66

1031 2.79

— —

— —

—

—

—

—

Watts

1289

1357

1429

1505

1584

1667

1753

1844

1939

2039

2143

2251

2364

2482

2605

—

—

—

—

Bhp



Rpm

1.4

Bhp

959 1.58

965 1.66

972 1.74

979 1.83

986 1.92

994 2.01

1002 2.11

1011 2.21

1020 2.32

1029 2.43

1038 2.54

1048 2.66

1058 2.79

— —

—

—

—

—

—

—

—

—

—

—


Watts

1476

1548

1624

1704

1787

1874

1965

2060

2160

2264

2372

2485

2602

—

—

—

—

—

—

Rpm

—

—

—

—

—

—

—

—

1.6

Bhp

1015 1.79

1021 1.87

1027 1.96

1033 2.05

1040 2.14

1047 2.24

1054 2.34

1062 2.45

1070 2.56

1079 2.67

1088 2.80

—

—

—

—

—

—

—

—

Watts

1669

1745

1825

1909

1996

2087

2183

2283

2386

2494

2607

—

—

—

—

—

—

—

—

1.8

Rpm Bhp

1069 2.00

1074 2.09

1079 2.18

1085 2.27

1091 2.37

—

—

—

—

—

—

—

—

1098 2.47

1105 2.58

1112 2.69

1119 2.81

— —

— —

—

—

—

—

—

—

—

—

Watts

1868

1948

2032

2120

2211

2307

2406

2510

2618

—

—

—

—

—

—

—

—

—

—

NOTES:




2.0

Rpm Bhp

—

—

—

—

—

—

—

—

1121 2.22

1125 2.31

1130 2.41

1135 2.51

1141 2.61

1147 2.71

1153 2.83

— —

—

—

—

—

—

—

—

—

—

—

—

—

—

—


Watts

2073

2158

2245

2337

2432

2532

2635

—

—

—

—

—

—

—

—

—

—

—

—

— 27 —

AIRFLOW

(Cfm)

3300

3400

3500

3600

3700

3800

3900

4000

2500

2600

2700

2800

2900

3000

3100

3200

4100

4200

4300


0.2

Bhp

1.00

1.09

1.17

1.26

1.36

1.46

1.57

1.68

0.50

0.55

0.60

0.66

0.72

0.79

0.85

0.93

1.79

1.92

2.04

Rpm

663

679

695

711

728

744

760

777

541

556

571

586

601

616

632

648

793

810

826

Watts

936

1012

1092

1177

1266

1361

1460

1563

467

513

562

615

672

732

796

864

1672

1786

1906

0.4

Bhp

1.20

1.29

1.38

1.48

1.58

1.69

1.80

1.91

0.66

0.71

0.77

0.83

0.90

0.97

1.04

1.12

2.04

2.16

2.30

Rpm

731

745

760

774

789

804

819

834

624

637

650

663

676

689

703

717

850

865

880


0.6

Watts

1122

1203

1288

1379

1473

1572

1676

1785

614

665

720

777

839

904

972

1045

1899

2018

2142

Rpm

795

808

821

834

848

861

875

889

701

711

722

734

745

757

769

782

904

918

932

Bhp

1.41

1.50

1.60

1.70

1.81

1.92

2.04

2.16

0.83

0.89

0.95

1.02

1.09

1.16

1.24

1.32

2.29

2.42

2.56

Watts

1316

1402

1492

1587

1686

1790

1899

2012

771

827

885

948

1014

1083

1157

1235

2132

2255

2385

Rpm

855

867

879

891

904

916

929

942

771

781

790

800

811

821

832

843

956

969

983

0.8

Bhp

1.63

1.72

1.83

1.93

2.04

2.16

2.28

2.41

1.00

1.07

1.14

1.21

1.28

1.36

1.45

1.53

2.54

2.68

2.82

Watts

1517

1608

1703

1802

1906

2015

2128

2247

936

996

1059

1126

1197

1271

1349

1431

2371

2499

2633

Rpm

1.0

Bhp

837 1.19

845 1.26

854 1.33

863 1.41

872 1.49

882 1.57

892 1.66

902 1.75

912 1.85

923 1.95

934 2.06

945 2.17

957 2.29

969 2.41

981 2.53

993 2.67

1006 2.80

1018 2.95

1031 3.10

Watts

1725

1820

1920

2024

2132

2246

2364

2487

1109

1173

1241

1312

1387

1465

1548

1635

2615

2748

2888

AIRFLOW

(Cfm)

2500

2600

2700

2800

2900

3000

3100

3200

3300

3400

3500

3600

3700

3800

3900

4000

4100

4200

4300

Rpm

LEGEND

1.2

Bhp

900 1.38

907 1.46

914 1.53

922 1.61

931 1.70

939 1.79

948 1.88

957 1.98

967 2.08

977 2.19

987 2.30

998 2.41

1008 2.54

1019 2.66

1031 2.79

1042 2.93

1054 3.07

1066 3.22

1078 3.38

Watts

1289

1357

1429

1505

1584

1667

1753

1844

1939

2039

2143

2251

2364

2482

2605

2733

2866

3004

3148

Bhp



Rpm

1.4

Bhp

959 1.58

965 1.66

972 1.74

979 1.83

986 1.92

994 2.01

1002 2.11

1011 2.21

1020 2.32

1029 2.43

1038 2.54

1048 2.66

1058 2.79

1068 2.92

1079 3.06

1090 3.20

1101 3.35

1112 3.50

1123 3.66


Watts

1476

1548

1624

1704

1787

1874

1965

2060

2160

2264

2372

2485

2602

2725

2852

2984

3122

3264

3413

Rpm

1.6

Bhp

1015 1.79

1021 1.87

1027 1.96

1033 2.05

1040 2.14

1047 2.24

1054 2.34

1062 2.45

1070 2.56

1079 2.67

1088 2.80

1097 2.92

1106 3.05

1116 3.19

1126 3.33

1136 3.48

1146 3.63

1157 3.79

1167 3.95

Watts

1669

1745

1825

1909

1996

2087

2183

2283

2386

2494

2607

2724

2846

2972

3104

3241

3383

3530

3683

1.8

Rpm Bhp

1069 2.00

1074 2.09

1079 2.18

1085 2.27

1091 2.37

1098 2.47

1105 2.58

1112 2.69

1119 2.81

1127 2.93

1135 3.05

1144 3.18

1152 3.32

1162 3.46

1171 3.61

1180 3.76

1190 3.91

1200 4.08

— —

Watts

1868

1948

2032

2120

2211

2307

2406

2510

2618

2730

2847

2968

3094

3226

3362

3503

3649

3801

—

NOTES:




2.0

Rpm Bhp

1121 2.22

1125 2.31

1130 2.41

1135 2.51

1141 2.61

1147 2.71

1153 2.83

1160 2.94

1167 3.06

1174 3.19

1181 3.32

1189 3.45

1198 3.59

1206 3.74

1215 3.89

1224 4.04

1233 4.20

—

—

—

—


Watts

2073

2158

2245

2337

2432

2532

2635

2743

2855

2971

3092

3218

3348

3484

3624

3770

3921

—

—

— 28 —

AIRFLOW

(Cfm)

3800

3900

4000

4100

4200

4300

4400

4500

3000

3100

3200

3300

3400

3500

3600

3700

4600

4700

4800

4900

5000


0.2

Bhp

1.46

1.57

1.68

1.79

1.92

2.04

2.18

2.32

0.79

0.85

0.93

1.00

1.09

1.17

1.26

1.36

2.46

2.62

2.77

2.94

3.11

Rpm

744

760

777

793

810

826

843

860

616

632

648

663

679

695

711

728

876

893

910

927

944

Watts

1361

1460

1563

1672

1786

1906

2031

2161

732

796

864

936

1012

1092

1177

1266

2297

2439

2587

2741

2901

0.4

Bhp

1.69

1.80

1.91

2.04

2.16

2.30

2.44

2.58

0.97

1.04

1.12

1.20

1.29

1.38

1.48

1.58

2.73

2.89

3.06

3.23

3.40

Rpm

804

819

834

850

865

880

896

912

689

703

717

731

745

760

774

789

927

943

959

975

991


Watts

1572

1676

1785

1899

2018

2142

2272

2408

904

972

1045

1122

1203

1288

1379

1473

2549

2696

2849

3008

3173

Rpm

0.6

Bhp

757 1.16

769 1.24

782 1.32

795 1.41

808 1.50

821 1.60

834 1.70

848 1.81

861 1.92

875 2.04

889 2.16

904 2.29

918 2.42

932 2.56

947 2.70

962 2.85

977 3.01

992 3.17

1007 3.34

1022 3.52

1037 3.70

Watts

1790

1899

2012

2132

2255

2385

2520

2660

1083

1157

1235

1316

1402

1492

1587

1686

2807

2958

3116

3280

3451

Rpm

0.8

Bhp

821 1.36

832 1.45

843 1.53

855 1.63

867 1.72

879 1.83

891 1.93

904 2.04

916 2.16

929 2.28

942 2.41

956 2.54

969 2.68

983 2.82

996 2.97

1010 3.13

1024 3.29

1038 3.46

1053 3.63

— —

— —

Watts

2015

2128

2247

2371

2499

2633

2773

2918

1271

1349

1431

1517

1608

1703

1802

1906

3070

3226

3390

—

—

Rpm

1.0

Bhp

882 1.57

892 1.66

902 1.75

912 1.85

923 1.95

934 2.06

945 2.17

957 2.29

969 2.41

981 2.53

993 2.67

1006 2.80

1018 2.95

1031 3.10

1044 3.25

1057 3.41

1070 3.58

— —

—

—

—

—

—

—

Watts

2246

2364

2487

2615

2748

2888

3032

3182

1465

1548

1635

1725

1820

1920

2024

2132

3338

—

—

—

—

AIRFLOW

(Cfm)

4200

4300

4400

4500

4600

4700

4800

4900

5000

3000

3100

3200

3300

3400

3500

3600

3700

3800

3900

4000

4100

Rpm

1.2

Bhp

939 1.79

948 1.88

957 1.98

967 2.08

977 2.19

987 2.30

998 2.41

1008 2.54

1019 2.66

1031 2.79

1042 2.93

1054 3.07

1066 3.22

1078 3.38

1090 3.54

1103 3.70

— —

— —

—

—

—

—

—

—

Watts

3004

3148

3297

3451

—

—

—

—

—

1667

1753

1844

1939

2039

2143

2251

2364

2482

2605

2733

2866

LEGEND

Bhp



Rpm

1.4

Bhp

994 2.01

1002 2.11

1011 2.21

1020 2.32

1029 2.43

1038 2.54

1048 2.66

1058 2.79

1068 2.92

1079 3.06

1090 3.20

1101 3.35

1112 3.50

1123 3.66

— —

—

—

—

—

—

—

—

—

—

—

—

—


Watts

3264

3413

—

—

—

—

—

—

—

1874

1965

2060

2160

2264

2372

2485

2602

2725

2852

2984

3122

Rpm

1.6

Bhp

—

—

—

—

—

—

—

—

—

1047 2.24

1054 2.34

1062 2.45

1070 2.56

1079 2.67

1088 2.80

1097 2.92

1106 3.05

1116 3.19

1126 3.33

1136 3.48

1146 3.63

—

—

—

—

—

—

—

—

—

Watts

—

—

—

—

—

—

—

—

—

2087

2183

2283

2386

2494

2607

2724

2846

2972

3104

3241

3383

Rpm

1.8

Bhp

—

—

—

—

—

—

—

—

—

1098 2.47

1105 2.58

1112 2.69

1119 2.81

1127 2.93

1135 3.05

1144 3.18

1152 3.32

1162 3.46

1171 3.61

— —

— —

—

—

—

—

—

—

—

—

—

Watts

—

—

—

—

—

—

—

—

—

2307

2406

2510

2618

2730

2847

2968

3094

3226

3362

—

—

Rpm

2.0

Bhp

—

—

—

—

—

—

—

—

—

1147 2.71

1153 2.83

1160 2.94

1167 3.06

1174 3.19

1181 3.32

1189 3.45

1198 3.59

— —

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

NOTES:





Watts

—

—

—

—

—

—

—

—

—

2532

2635

2743

2855

2971

3092

3218

3348

—

—

—

—

— 29 —

AIRFLOW

(Cfm)

3800

3900

4000

4100

4200

4300

4400

4500

3000

3100

3200

3300

3400

3500

3600

3700

4600

4700

4800

4900

5000


0.2

Bhp

1.46

1.57

1.68

1.79

1.92

2.04

2.18

2.32

0.79

0.85

0.93

1.00

1.09

1.17

1.26

1.36

2.46

2.62

2.77

2.94

3.11

Rpm

744

760

777

793

810

826

843

860

616

632

648

663

679

695

711

728

876

893

910

927

944

Watts

1361

1460

1563

1672

1786

1906

2031

2161

732

796

864

936

1012

1092

1177

1266

2297

2439

2587

2741

2901

0.4

Bhp

1.69

1.80

1.91

2.04

2.16

2.30

2.44

2.58

0.97

1.04

1.12

1.20

1.29

1.38

1.48

1.58

2.73

2.89

3.06

3.23

3.40

Rpm

804

819

834

850

865

880

896

912

689

703

717

731

745

760

774

789

927

943

959

975

991


Watts

1572

1676

1785

1899

2018

2142

2272

2408

904

972

1045

1122

1203

1288

1379

1473

2549

2696

2849

3008

3173

Rpm

0.6

Bhp

757 1.16

769 1.24

782 1.32

795 1.41

808 1.50

821 1.60

834 1.70

848 1.81

861 1.92

875 2.04

889 2.16

904 2.29

918 2.42

932 2.56

947 2.70

962 2.85

977 3.01

992 3.17

1007 3.34

1022 3.52

1037 3.70

Watts

1790

1899

2012

2132

2255

2385

2520

2660

1083

1157

1235

1316

1402

1492

1587

1686

2807

2958

3116

3280

3451

Rpm

0.8

Bhp

821 1.36

832 1.45

843 1.53

855 1.63

867 1.72

879 1.83

891 1.93

904 2.04

916 2.16

929 2.28

942 2.41

956 2.54

969 2.68

983 2.82

996 2.97

1010 3.13

1024 3.29

1038 3.46

1053 3.63

1067 3.82

1082 4.00

Watts

2015

2128

2247

2371

2499

2633

2773

2918

1271

1349

1431

1517

1608

1703

1802

1906

3070

3226

3390

3558

3733

Rpm

1.0

Bhp

882 1.57

892 1.66

902 1.75

912 1.85

923 1.95

934 2.06

945 2.17

957 2.29

969 2.41

981 2.53

993 2.67

1006 2.80

1018 2.95

1031 3.10

1044 3.25

1057 3.41

1070 3.58

1084 3.75

1098 3.93

1111 4.12

1125 4.31

Watts

2246

2364

2487

2615

2748

2888

3032

3182

1465

1548

1635

1725

1820

1920

2024

2132

3338

3500

3668

3841

4021

AIRFLOW

(Cfm)

4200

4300

4400

4500

4600

4700

4800

4900

5000

3000

3100

3200

3300

3400

3500

3600

3700

3800

3900

4000

4100

Rpm

1.2

Bhp

939 1.79

948 1.88

957 1.98

967 2.08

977 2.19

987 2.30

998 2.41

1008 2.54

1019 2.66

1031 2.79

1042 2.93

1054 3.07

1066 3.22

1078 3.38

1090 3.54

1103 3.70

1115 3.87

1128 4.05

1141 4.24

1154 4.43

1167 4.63

Watts

3004

3148

3297

3451

3612

3778

3951

4130

4314

1667

1753

1844

1939

2039

2143

2251

2364

2482

2605

2733

2866

LEGEND

Bhp



Rpm

1.4

Bhp

994 2.01

1002 2.11

1011 2.21

1020 2.32

1029 2.43

1038 2.54

1048 2.66

1058 2.79

1068 2.92

1079 3.06

1090 3.20

1101 3.35

1112 3.50

1123 3.66

1135 3.82

1147 4.00

1159 4.17

1171 4.36

1183 4.55

1196 4.74

1209 4.95


Watts

3264

3413

3566

3726

3891

4062

4239

4422

4611

1874

1965

2060

2160

2264

2372

2485

2602

2725

2852

2984

3122

Rpm

1.6

Bhp

1047 2.24

1054 2.34

1062 2.45

1070 2.56

1079 2.67

1088 2.80

1097 2.92

1106 3.05

1116 3.19

1126 3.33

1136 3.48

1146 3.63

1157 3.79

1167 3.95

1179 4.12

1190 4.29

1201 4.48

1213 4.67

1225 4.86

1237 5.06

— —

Watts

3530

3683

3841

4005

4175

4350

4532

4720

—

2087

2183

2283

2386

2494

2607

2724

2846

2972

3104

3241

3383

Rpm

1.8

Bhp

1098 2.47

1105 2.58

1112 2.69

1119 2.81

1127 2.93

1135 3.05

1144 3.18

1152 3.32

1162 3.46

1171 3.61

1180 3.76

1190 3.91

1200 4.08

1210 4.24

1221 4.42

1232 4.60

1243 4.79

1254 4.98

1265 5.18

— —

— —

Watts

3801

3958

4121

4289

4464

4644

4830

—

—

2307

2406

2510

2618

2730

2847

2968

3094

3226

3362

3503

3649

NOTES:





Rpm

2.0

Bhp

1147 2.71

1153 2.83

1160 2.94

1167 3.06

1174 3.19

1181 3.32

1189 3.45

1198 3.59

1206 3.74

1215 3.89

1224 4.04

1233 4.20

1243 4.37

1252 4.54

1262 4.72

1273 4.91

1283 5.10

— —

—

—

—

—

—

—

Watts

4077

4238

4405

4578

4757

—

—

—

—

2532

2635

2743

2855

2971

3092

3218

3348

3484

3624

3770

3921

— 30 —

AIRFLOW

(Cfm)

5300

5400

5500

5600

5700

5800

5900

6000

6100

6200

6300

4500

4600

4700

4800

4900

5000

5100

5200

3700

3800

3900

4000

4100

4200

4300

4400


Rpm

0.2

Bhp

728 1.36

744 1.46

760 1.57

777 1.68

793 1.79

810 1.92

826 2.04

843 2.18

860 2.32

876 2.46

893 2.62

910 2.77

927 2.94

944 3.11

961 3.29

978 3.48

995 3.67

1012 3.87

1029 4.07

1046 4.29

1063 4.51

1080 4.74

1098 4.98

1115 5.22

—

—

—

—

—

—

Watts

3420

3606

3799

3999

4207

4420

4642

4872

—

—

—

2161

2297

2439

2587

2741

2901

3068

3241

1266

1361

1460

1563

1672

1786

1906

2031

Rpm

0.4

Bhp

789 1.58

804 1.69

819 1.80

834 1.91

850 2.04

865 2.16

880 2.30

896 2.44

912 2.58

927 2.73

943 2.89

959 3.06

975 3.23

991 3.40

1007 3.59

1024 3.78

1040 3.98

1056 4.18

1073 4.39

1089 4.61

1105 4.84

1122 5.08

—

—

—

—

—

—

—

—

—

—


Watts

3707

3899

4097

4302

4515

4734

—

—

—

—

—

2408

2549

2696

2849

3008

3173

3345

3523

1473

1572

1676

1785

1899

2018

2142

2272

Rpm

0.6

Bhp

848 1.81

861 1.92

875 2.04

889 2.16

904 2.29

918 2.42

932 2.56

947 2.70

962 2.85

977 3.01

992 3.17

1007 3.34

1022 3.52

1037 3.70

1053 3.89

1068 4.09

1084 4.29

1099 4.50

1115 4.72

1131 4.94

1146 5.18

— —

—

—

—

—

—

—

—

—

—

—

Watts

4000

4196

4400

4610

4827

—

—

—

—

—

—

2660

2807

2958

3116

3280

3451

3627

3811

1686

1790

1899

2012

2132

2255

2385

2520

Rpm

0.8

Bhp

904 2.04

916 2.16

929 2.28

942 2.41

956 2.54

969 2.68

983 2.82

996 2.97

1010 3.13

1024 3.29

1038 3.46

1053 3.63

1067 3.82

1082 4.00

1096 4.20

1111 4.40

1126 4.61

1141 4.82

1156 5.05

— —

—

—

—

—

—

—

—

—

—

—

—

—

—

—

Watts

4298

4499

4707

—

—

—

—

—

—

—

—

2918

3070

3226

3390

3558

3733

3915

4103

1906

2015

2128

2247

2371

2499

2633

2773

Rpm

1.0

Bhp

957 2.29

969 2.41

981 2.53

993 2.67

1006 2.80

1018 2.95

1031 3.10

1044 3.25

1057 3.41

1070 3.58

1084 3.75

1098 3.93

1111 4.12

1125 4.31

1139 4.51

1153 4.72

1168 4.93

1182 5.15

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

Watts

4600

4806

—

—

—

—

—

—

—

—

—

3182

3338

3500

3668

3841

4021

4208

4400

2132

2246

2364

2487

2615

2748

2888

3032

AIRFLOW

(Cfm)

4900

5000

5100

5200

5300

5400

5500

5600

5700

5800

5900

6000

6100

6200

6300

3700

3800

3900

4000

4100

4200

4300

4400

4500

4600

4700

4800

Rpm

1.2

Bhp

—

—

—

—

—

—

—

—

—

1008 2.54

1019 2.66

1031 2.79

1042 2.93

1054 3.07

1066 3.22

1078 3.38

1090 3.54

1103 3.70

1115 3.87

1128 4.05

1141 4.24

1154 4.43

1167 4.63

1181 4.83

1194 5.04

— —

— —

—

—

—

—

—

—

—

—

—

Watts

—

—

—

—

—

—

4130

4314

4505

4703

—

—

—

—

—

2364

2482

2605

2733

2866

3004

3148

3297

3451

3612

3778

3951

LEGEND

Bhp



Rpm

1.4

Bhp

1058 2.79

1068 2.92

1079 3.06

1090 3.20

1101 3.35

1112 3.50

1123 3.66

1135 3.82

1147 4.00

1159 4.17

1171 4.36

1183 4.55

—

—

—

—

—

—

1196 4.74

1209 4.95

1221 5.16

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—


Watts

—

—

—

—

—

—

4422

4611

4808

—

—

—

—

—

—

2602

2725

2852

2984

3122

3264

3413

3566

3726

3891

4062

4239

Rpm

1126

1157

1190

1225

1237

—

—

—

—

—

—

—

—

—

—

—

—

—

—

1.6

Bhp

1106 3.05

1116 3.19

3.33

1136 3.48

1146 3.63

3.79

1167 3.95

1179 4.12

4.29

1201 4.48

1213 4.67

4.86

5.06

—

—

—

—

—

—

—

—

—

—

—

—

—

—

Watts

—

—

—

—

—

—

4720

—

—

—

—

—

—

—

—

2846

2972

3104

3241

3383

3530

3683

3841

4005

4175

4350

4532

Rpm

1.8

Bhp

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

1152 3.32

1162 3.46

1171 3.61

1180 3.76

1190 3.91

1200 4.08

1210 4.24

1221 4.42

1232 4.60

1243 4.79

1254 4.98

1265 5.18

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

NOTES:





Watts

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

3094

3226

3362

3503

3649

3801

3958

4121

4289

4464

4644

4830

Rpm

2.0

Bhp

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

1198 3.59

1206 3.74

1215 3.89

1224 4.04

1233 4.20

1243 4.37

1252 4.54

1262 4.72

1273 4.91

1283 5.10

— —

— —

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

Watts

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

3348

3484

3624

3770

3921

4077

4238

4405

4578

4757

—

—

— 31 —

AIRFLOW

(Cfm)

2900

3000

3100

3200

3300

3400

3500

3600

3700

3750

2250

2300

2400

2500

2550

2600

2700

2800

Table 16 — Fan Performance 581B090 — Horizontal Discharge Units; Standard Motor (Belt Drive)*

0.2

Bhp

0.87

0.95

1.03

1.12

1.22

1.32

1.42

1.54

0.52

0.55

0.60

0.66

0.69

0.73

0.80

1.66

1.78

1.85

Rpm

589

605

621

637

654

670

686

703

505

513

527

543

550

558

574

720

736

745

Watts

811

885

963

1046

1135

1228

1328

1433

484

509

561

617

647

677

742

1543

1660

1721

0.4

Bhp

1.11

1.20

1.29

1.39

1.49

1.60

1.71

1.83

0.73

0.76

0.82

0.89

0.92

0.96

1.03

1.95

2.09

2.15

Rpm

659

673

688

702

717

732

747

762

586

592

605

618

625

632

645

777

793

801


0.6

Watts

1039

1119

1204

1293

1388

1488

1593

1705

681

708

766

828

860

894

964

1822

1944

2008

Rpm

723

736

749

762

776

789

803

817

657

663

674

686

692

698

710

832

846

853

Bhp

1.38

1.47

1.57

1.67

1.78

1.89

2.01

2.14

0.97

1.00

1.07

1.14

1.17

1.21

1.29

2.27

2.41

2.48

Watts

1287

1372

1463

1558

1658

1764

1876

1993

901

931

993

1060

1095

1131

1207

2116

2245

2312

Rpm

782

794

806

818

831

843

856

870

722

727

738

748

754

759

770

883

896

903

0.8

Bhp

1.67

1.76

1.87

1.97

2.09

2.21

2.33

2.46

1.22

1.26

1.33

1.41

1.45

1.49

1.58

2.60

2.75

2.82

Watts

1554

1644

1740

1840

1946

2057

2174

2297

1142

1174

1241

1312

1349

1388

1469

2425

2560

2630

Rpm

837

848

859

871

882

894

907

919

782

787

796

806

811

816

826

—

—

—

1.0

Bhp

1.97

2.07

2.18

2.29

2.41

2.54

2.67

2.81

1.50

1.54

1.62

1.70

1.74

1.78

1.88

—

—

—

Watts

1839

1933

2033

2139

2249

2365

2488

2616

1403

1437

1508

1583

1623

1664

1749

—

—

—

AIRFLOW

(Cfm)

2900

3000

3100

3200

3300

3400

3500

3600

3700

3750

2250

2300

2400

2500

2550

2600

2700

2800

Rpm

838

842

851

860

865

869

879

889

899

910

921

932

943

—

—

—

—

—

1.2

Bhp

1.81

1.84

1.92

2.01

2.05

2.10

2.19

2.29

2.40

2.51

2.63

2.75

2.88

—

—

—

—

—

Watts

2140

2239

2343

2453

2569

2690

—

—

1683

1719

1793

1873

1914

1957

2046

—

—

—

LEGEND

Bhp



Rpm

938

948

958

—

—

—

—

—

891

895

903

911

916

920

929

—

—

—

1.4

Bhp

2.12

2.17

2.25

2.34

2.38

2.43

2.53

2.64

2.75

2.86

—

—

—

—

—

—

—

—


Watts

2458

2561

2670

—

—

—

—

—

1981

2019

2097

2180

2223

2267

2360

—

—

—

Rpm

—

—

—

—

—

—

—

—

941

944

952

960

964

968

976

—

—

—


1.6

Bhp

—

—

—

—

—

—

—

—

2.46

2.51

2.59

2.68

2.73

2.78

2.88

—

—

—

Watts

—

—

—

—

—

—

—

—

2297

2336

2416

2502

2547

2593

2689

—

—

—

Rpm

—

—

—

—

—

—

—

—

988

992

—

—

—

—

—

—

—

—

NOTES:

1.8

Bhp

2.82

2.86

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

Watts

—

—

—

—

—

—

—

—

2629

2669

—

—

—

—

—

—

—

—

Rpm

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—




2.0

Bhp

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

Watts

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

— 32 —

AIRFLOW

(Cfm)

2900

3000

3100

3200

3300

3400

3500

3600

3700

3750

2250

2300

2400

2500

2550

2600

2700

2800

Table 17 — Fan Performance 581B090 — Horizontal Discharge Units; High-Static Motor (Belt Drive)*

0.2

Bhp

0.87

0.95

1.03

1.12

1.22

1.32

1.42

1.54

0.52

0.55

0.60

0.66

0.69

0.73

0.80

1.66

1.78

1.85

Rpm

589

605

621

637

654

670

686

703

505

513

527

543

550

558

574

720

736

745

Watts

811

885

963

1046

1135

1228

1328

1433

484

509

561

617

647

677

742

1543

1660

1721

0.4

Bhp

1.11

1.20

1.29

1.39

1.49

1.60

1.71

1.83

0.73

0.76

0.82

0.89

0.92

0.96

1.03

1.95

2.09

2.15

Rpm

659

673

688

702

717

732

747

762

586

592

605

618

625

632

645

777

793

801


0.6

Watts

1039

1119

1204

1293

1388

1488

1593

1705

681

708

766

828

860

894

964

1822

1944

2008

Rpm

723

736

749

762

776

789

803

817

657

663

674

686

692

698

710

832

846

853

Bhp

1.38

1.47

1.57

1.67

1.78

1.89

2.01

2.14

0.97

1.00

1.07

1.14

1.17

1.21

1.29

2.27

2.41

2.48

Watts

1287

1372

1463

1558

1658

1764

1876

1993

901

931

993

1060

1095

1131

1207

2116

2245

2312

Rpm

782

794

806

818

831

843

856

870

722

727

738

748

754

759

770

883

896

903

0.8

Bhp

1.67

1.76

1.87

1.97

2.09

2.21

2.33

2.46

1.22

1.26

1.33

1.41

1.45

1.49

1.58

2.60

2.75

2.82

Watts

1554

1644

1740

1840

1946

2057

2174

2297

1142

1174

1241

1312

1349

1388

1469

2425

2560

2630

Rpm

837

848

859

871

882

894

907

919

782

787

796

806

811

816

826

932

944

951

1.0

Bhp

1.97

2.07

2.18

2.29

2.41

2.54

2.67

2.81

1.50

1.54

1.62

1.70

1.74

1.78

1.88

2.95

3.10

3.18

Watts

1839

1933

2033

2139

2249

2365

2488

2616

1403

1437

1508

1583

1623

1664

1749

2750

2889

2962

AIRFLOW

(Cfm)

2900

3000

3100

3200

3300

3400

3500

3600

3700

3750

2250

2300

2400

2500

2550

2600

2700

2800

Rpm

838

842

851

860

865

869

879

889

899

910

921

932

943

954

966

978

990

996

1.2

Bhp

1.81

1.84

1.92

2.01

2.05

2.10

2.19

2.29

2.40

2.51

2.63

2.75

2.88

3.02

3.16

3.31

3.47

3.55

Watts

2140

2239

2343

2453

2569

2690

2816

2950

1683

1719

1793

1873

1914

1957

2046

3088

3233

3308

LEGEND

Bhp



Rpm

1.4

Bhp

891 2.12

895 2.17

903 2.25

911 2.34

916 2.38

920 2.43

929 2.53

938 2.64

948 2.75

958 2.86

968 2.98

978 3.11

989 3.25

1000 3.39

1011 3.54

1022 3.69

1034 3.85

1040 3.93


Watts

2458

2561

2670

2783

2903

3029

3159

3297

1981

2019

2097

2180

2223

2267

2360

3442

3591

3669


Rpm

1.6

Bhp

941 2.46

944 2.51

952 2.59

960 2.68

964 2.73

968 2.78

976 2.88

985 2.99

994 3.11

1004 3.23

1013 3.35

1023 3.49

1033 3.63

1044 3.77

1054 3.92

1065 4.08

— —

— —

Watts

2791

2898

3011

3128

3252

3382

3518

3660

2297

2336

2416

2502

2547

2593

2689

3808

—

—

Rpm

1.8

Bhp

988 2.82

992 2.86

999 2.95

1006 3.05

1010 3.10

1014 3.15

1022 3.25

1030 3.37

1039 3.49

1048 3.61

1057 3.74

1066 3.88

1076 4.02

1086 4.17

— —

—

—

—

—

—

—

NOTES:

Watts

3140

3250

3366

3488

3616

3749

3889

—

2629

2669

2752

2842

2888

2935

3035

—

—

—




Rpm

2.0

Bhp

1033 3.19

1037 3.24

1043 3.33

1051 3.43

1054 3.48

1058 3.53

1066 3.64

1073 3.76

1082 3.88

1090 4.01

1099 4.14

—

—

—

—

—

—

—

—

—

—

—

—

—

—

Watts

3503

3616

3736

3861

—

—

—

—

2976

3018

3104

3196

3243

3292

3395

—

—

—

— 33 —

AIRFLOW

(Cfm)

3300

3400

3500

3600

3700

3800

3900

4000

2500

2600

2700

2800

2900

3000

3100

3200

4100

4200

4300


0.2

Bhp

0.88

0.95

1.03

1.10

1.19

1.27

1.36

1.45

0.45

0.50

0.54

0.59

0.64

0.70

0.76

0.82

1.55

1.66

1.76

Rpm

620

634

648

662

676

690

705

719

513

526

539

552

565

579

592

606

734

748

763

Watts

825

890

958

1030

1106

1185

1269

1357

423

463

505

551

599

651

706

764

1449

1545

1646

0.4

Bhp

1.10

1.17

1.25

1.34

1.42

1.52

1.61

1.71

0.62

0.67

0.72

0.77

0.83

0.89

0.96

1.03

1.82

1.93

2.04

Rpm

696

709

721

734

747

760

773

786

603

614

625

637

648

660

672

684

799

813

826


0.6

Watts

1024

1095

1169

1246

1328

1414

1503

1597

576

621

670

721

775

832

893

957

1695

1797

1903

Rpm

765

777

788

800

811

823

835

848

682

692

702

712

722

732

743

754

860

872

885

Bhp

1.31

1.40

1.48

1.57

1.66

1.76

1.86

1.97

0.78

0.84

0.90

0.96

1.02

1.09

1.16

1.24

2.08

2.20

2.32

Watts

1225

1302

1381

1465

1552

1644

1739

1838

732

783

837

894

954

1017

1083

1153

1942

2050

2162

Rpm

829

839

850

860

871

882

894

905

753

761

770

780

789

799

808

818

917

928

940

0.8

Bhp

1.53

1.62

1.71

1.81

1.91

2.01

2.12

2.23

0.96

1.02

1.08

1.15

1.22

1.29

1.37

1.45

2.35

2.47

2.60

Watts

1429

1511

1597

1686

1779

1876

1977

2082

892

948

1008

1070

1136

1204

1276

1351

2192

2305

2423

Rpm

888

897

907

917

927

938

948

959

817

825

834

842

851

860

869

878

970

981

992

1.0

Bhp

1.75

1.85

1.95

2.05

2.15

2.26

2.38

2.50

1.13

1.20

1.27

1.34

1.42

1.50

1.58

1.66

2.62

2.75

2.88

Watts

1636

1723

1815

1909

2008

2111

2217

2328

1055

1117

1182

1250

1321

1395

1471

1552

2443

2562

2686

AIRFLOW

(Cfm)

2500

2600

2700

2800

2900

3000

3100

3200

3300

3400

3500

3600

3700

3800

3900

4000

4100

4200

4300

Rpm

LEGEND

1.2

Bhp

877 1.31

885 1.38

892 1.46

900 1.54

908 1.62

917 1.70

925 1.79

934 1.88

943 1.98

952 2.08

961 2.18

971 2.29

981 2.40

990 2.52

1000 2.64

1011 2.76

1021 2.89

—

—

—

—

Watts

1222

1289

1359

1432

1508

1587

1670

1756

1845

1939

2035

2135

2240

2348

2459

2576

2697

—

—

Bhp



Rpm

1.4

Bhp

933 1.49

940 1.57

948 1.65

955 1.74

963 1.82

970 1.91

979 2.01

987 2.10

995 2.21

1004 2.31

1013 2.42

1022 2.53

1031 2.65

1040 2.77

1050 2.90

— —

— —

—

—

—

—


Watts

1392

1464

1540

1618

1699

1784

1872

1963

2057

2156

2258

2364

2473

2587

2705

—

—

—

—

Rpm

—

—

—

—

—

1.6

Bhp

986 1.68

993 1.76

1000 1.85

1007 1.94

1014 2.03

1021 2.13

1029 2.23

1037 2.33

1045 2.44

1053 2.55

1062 2.66

1070 2.78

— —

— —

—

—

—

—

—

Watts

1565

1643

1723

1807

1893

1983

2076

2172

2272

2376

2483

2595

—

—

—

—

—

—

—

1.8

Rpm Bhp

—

—

—

—

—

—

—

—

1037 1.87

1043 1.96

1049 2.05

1056 2.14

1063 2.24

1070 2.34

1077 2.45

1085 2.56

1092 2.67

1100 2.79

— —

—

—

—

—

—

—

—

—

Watts

1742

1824

1909

1998

2089

2185

2283

2384

2490

2599

—

—

—

—

—

—

—

—

—

NOTES:




2.0

Rpm Bhp

—

—

—

—

—

—

—

—

1085 2.06

1091 2.15

1097 2.25

1103 2.35

1110 2.45

1117 2.56

1123 2.67

1131 2.79

—

—

—

—

—

—

—

—

—

—

—

—

—

—


Watts

1921

2008

2099

2192

2289

2389

2492

2599

—

—

—

—

—

—

—

—

—

—

—

— 34 —

AIRFLOW

(Cfm)

3300

3400

3500

3600

3700

3800

3900

4000

2500

2600

2700

2800

2900

3000

3100

3200

4100

4200

4300


0.2

Bhp

0.88

0.95

1.03

1.10

1.19

1.27

1.36

1.45

0.45

0.50

0.54

0.59

0.64

0.70

0.76

0.82

1.55

1.66

1.76

Rpm

620

634

648

662

676

690

705

719

513

526

539

552

565

579

592

606

734

748

763

Watts

825

890

958

1030

1106

1185

1269

1357

423

463

505

551

599

651

706

764

1449

1545

1646

0.4

Bhp

1.10

1.17

1.25

1.34

1.42

1.52

1.61

1.71

0.62

0.67

0.72

0.77

0.83

0.89

0.96

1.03

1.82

1.93

2.04

Rpm

696

709

721

734

747

760

773

786

603

614

625

637

648

660

672

684

799

813

826


0.6

Watts

1024

1095

1169

1246

1328

1414

1503

1597

576

621

670

721

775

832

893

957

1695

1797

1903

Rpm

765

777

788

800

811

823

835

848

682

692

702

712

722

732

743

754

860

872

885

Bhp

1.31

1.40

1.48

1.57

1.66

1.76

1.86

1.97

0.78

0.84

0.90

0.96

1.02

1.09

1.16

1.24

2.08

2.20

2.32

Watts

1225

1302

1381

1465

1552

1644

1739

1838

732

783

837

894

954

1017

1083

1153

1942

2050

2162

Rpm

829

839

850

860

871

882

894

905

753

761

770

780

789

799

808

818

917

928

940

0.8

Bhp

1.53

1.62

1.71

1.81

1.91

2.01

2.12

2.23

0.96

1.02

1.08

1.15

1.22

1.29

1.37

1.45

2.35

2.47

2.60

Watts

1429

1511

1597

1686

1779

1876

1977

2082

892

948

1008

1070

1136

1204

1276

1351

2192

2305

2423

Rpm

888

897

907

917

927

938

948

959

817

825

834

842

851

860

869

878

970

981

992

1.0

Bhp

1.75

1.85

1.95

2.05

2.15

2.26

2.38

2.50

1.13

1.20

1.27

1.34

1.42

1.50

1.58

1.66

2.62

2.75

2.88

Watts

1636

1723

1815

1909

2008

2111

2217

2328

1055

1117

1182

1250

1321

1395

1471

1552

2443

2562

2686

AIRFLOW

(Cfm)

2500

2600

2700

2800

2900

3000

3100

3200

3300

3400

3500

3600

3700

3800

3900

4000

4100

4200

4300

Rpm

LEGEND

1.2

Bhp

877 1.31

885 1.38

892 1.46

900 1.54

908 1.62

917 1.70

925 1.79

934 1.88

943 1.98

952 2.08

961 2.18

971 2.29

981 2.40

990 2.52

1000 2.64

1011 2.76

1021 2.89

1031 3.03

1042 3.16

Watts

1222

1289

1359

1432

1508

1587

1670

1756

1845

1939

2035

2135

2240

2348

2459

2576

2697

2822

2951

Bhp



Rpm

1.4

Bhp

933 1.49

940 1.57

948 1.65

955 1.74

963 1.82

970 1.91

979 2.01

987 2.10

995 2.21

1004 2.31

1013 2.42

1022 2.53

1031 2.65

1040 2.77

1050 2.90

1059 3.03

1069 3.17

1079 3.31

1089 3.45


Watts

1392

1464

1540

1618

1699

1784

1872

1963

2057

2156

2258

2364

2473

2587

2705

2826

2953

3083

3218

Rpm

1.6

Bhp

986 1.68

993 1.76

1000 1.85

1007 1.94

1014 2.03

1021 2.13

1029 2.23

1037 2.33

1045 2.44

1053 2.55

1062 2.66

1070 2.78

1079 2.91

1088 3.03

1097 3.17

1106 3.30

1116 3.44

1125 3.59

1135 3.74

Watts

1565

1643

1723

1807

1893

1983

2076

2172

2272

2376

2483

2595

2709

2828

2951

3079

3210

3347

3487

1.8

Rpm Bhp

1037 1.87

1043 1.96

1049 2.05

1056 2.14

1063 2.24

1070 2.34

1077 2.45

1085 2.56

1092 2.67

1100 2.79

1108 2.91

1116 3.03

1125 3.16

1133 3.30

1142 3.43

1151 3.58

1160 3.72

1169 3.87

1179 4.03

Watts

1742

1824

1909

1998

2089

2185

2283

2384

2490

2599

2711

2827

2948

3073

3201

3334

3471

3612

3758

NOTES:




2.0

Rpm Bhp

1085 2.06

1091 2.15

1097 2.25

1103 2.35

1110 2.45

1117 2.56

1123 2.67

1131 2.79

1138 2.91

1145 3.03

1153 3.15

1161 3.29

1169 3.42

1177 3.56

1186 3.70

1194 3.85

1203 4.00

1212 4.16

— —


Watts

1921

2008

2099

2192

2289

2389

2492

2599

2710

2824

2942

3063

3189

3319

3452

3591

3733

3880

—

— 35 —

AIRFLOW

(Cfm)

3800

3900

4000

4100

4200

4300

4400

4500

3000

3100

3200

3300

3400

3500

3600

3700

4600

4700

4800

4900

5000


0.2

Bhp

1.27

1.36

1.45

1.55

1.66

1.76

1.88

1.99

0.70

0.76

0.82

0.88

0.95

1.03

1.10

1.19

2.12

2.25

2.38

2.52

2.66

Rpm

690

705

719

734

748

763

778

792

579

592

606

620

634

648

662

676

807

822

837

852

867

Watts

1185

1269

1357

1449

1545

1646

1751

1860

651

706

764

825

890

958

1030

1106

1975

2094

2218

2347

2482

0.4

Bhp

1.52

1.61

1.71

1.82

1.93

2.04

2.16

2.28

0.89

0.96

1.03

1.10

1.17

1.25

1.34

1.42

2.41

2.55

2.69

2.83

2.98

Rpm

760

773

786

799

813

826

840

853

660

672

684

696

709

721

734

747

867

881

895

909

923


Watts

1414

1503

1597

1695

1797

1903

2014

2130

832

893

957

1024

1095

1169

1246

1328

2250

2375

2505

2640

2781

Rpm

823

835

848

860

872

885

898

910

732

743

754

765

777

788

800

811

923

936

949

963

976

0.6

Bhp

1.76

1.86

1.97

2.08

2.20

2.32

2.44

2.57

1.09

1.16

1.24

1.31

1.40

1.48

1.57

1.66

2.71

2.85

3.00

3.15

3.30

Watts

1644

1739

1838

1942

2050

2162

2279

2401

1017

1083

1153

1225

1302

1381

1465

1552

2527

2658

2794

2935

3081

Rpm

0.8

Bhp

799 1.29

808 1.37

818 1.45

829 1.53

839 1.62

850 1.71

860 1.81

871 1.91

882 2.01

894 2.12

905 2.23

917 2.35

928 2.47

940 2.60

952 2.73

964 2.87

976 3.01

989 3.15

1001 3.31

1014 3.46

1026 3.63

Watts

1876

1977

2082

2192

2305

2423

2546

2673

1204

1276

1351

1429

1511

1597

1686

1779

2805

2942

3083

3230

3383

Rpm

1.0

Bhp

860 1.50

869 1.58

878 1.66

888 1.75

897 1.85

907 1.95

917 2.05

927 2.15

938 2.26

948 2.38

959 2.50

970 2.62

981 2.75

992 2.88

1004 3.02

1015 3.16

1027 3.31

1038 3.46

1050 3.62

— —

— —

Watts

2111

2217

2328

2443

2562

2686

2814

2947

1395

1471

1552

1636

1723

1815

1909

2008

3085

3227

3375

—

—

AIRFLOW

(Cfm)

4200

4300

4400

4500

4600

4700

4800

4900

5000

3000

3100

3200

3300

3400

3500

3600

3700

3800

3900

4000

4100

Rpm

1.2

Bhp

917 1.70

925 1.79

934 1.88

943 1.98

952 2.08

961 2.18

971 2.29

981 2.40

990 2.52

1000 2.64

1011 2.76

1021 2.89

1031 3.03

1042 3.16

1053 3.31

1064 3.46

1075 3.61

— —

—

—

—

—

—

—

Watts

2822

2951

3085

3224

3367

—

—

—

—

1587

1670

1756

1845

1939

2035

2135

2240

2348

2459

2576

2697

LEGEND

Bhp



Rpm

1.4

Bhp

970 1.91

979 2.01

987 2.10

995 2.21

1004 2.31

1013 2.42

1022 2.53

1031 2.65

1040 2.77

1050 2.90

1059 3.03

1069 3.17

1079 3.31

1089 3.45

1100 3.60

—

—

—

—

—

—

—

—

—

—

—

—


Watts

3083

3218

3357

—

—

—

—

—

—

1784

1872

1963

2057

2156

2258

2364

2473

2587

2705

2826

2953

Rpm

—

—

—

—

—

—

1.6

Bhp

1021 2.13

1029 2.23

1037 2.33

1045 2.44

1053 2.55

1062 2.66

1070 2.78

1079 2.91

1088 3.03

1097 3.17

1106 3.30

1116 3.44

1125 3.59

— —

— —

—

—

—

—

—

—

Watts

3347

—

—

—

—

—

—

—

—

1983

2076

2172

2272

2376

2483

2595

2709

2828

2951

3079

3210

Rpm

1.8

Bhp

—

—

—

—

—

—

—

—

—

1070 2.34

1077 2.45

1085 2.56

1092 2.67

1100 2.79

1108 2.91

1116 3.03

1125 3.16

1133 3.30

1142 3.43

1151 3.58

— —

—

—

—

—

—

—

—

—

—

Watts

—

—

—

—

—

—

—

—

—

2185

2283

2384

2490

2599

2711

2827

2948

3073

3201

3334

—

NOTES:





Rpm

2.0

Bhp

—

—

—

—

—

—

—

—

—

1117 2.56

1123 2.67

1131 2.79

1138 2.91

1145 3.03

1153 3.15

1161 3.29

1169 3.42

1177 3.56

1186 3.70

— —

— —

—

—

—

—

—

—

—

—

—

Watts

—

—

—

—

—

—

—

—

—

2389

2492

2599

2710

2824

2942

3063

3189

3319

3452

—

—

— 36 —

AIRFLOW

(Cfm)

3800

3900

4000

4100

4200

4300

4400

4500

3000

3100

3200

3300

3400

3500

3600

3700

4600

4700

4800

4900

5000


0.2

Bhp

1.27

1.36

1.45

1.55

1.66

1.76

1.88

1.99

0.70

0.76

0.82

0.88

0.95

1.03

1.10

1.19

2.12

2.25

2.38

2.52

2.66

Rpm

690

705

719

734

748

763

778

792

579

592

606

620

634

648

662

676

807

822

837

852

867

Watts

1185

1269

1357

1449

1545

1646

1751

1860

651

706

764

825

890

958

1030

1106

1975

2094

2218

2347

2482

0.4

Bhp

1.52

1.61

1.71

1.82

1.93

2.04

2.16

2.28

0.89

0.96

1.03

1.10

1.17

1.25

1.34

1.42

2.41

2.55

2.69

2.83

2.98

Rpm

760

773

786

799

813

826

840

853

660

672

684

696

709

721

734

747

867

881

895

909

923


Watts

1414

1503

1597

1695

1797

1903

2014

2130

832

893

957

1024

1095

1169

1246

1328

2250

2375

2505

2640

2781

Rpm

823

835

848

860

872

885

898

910

732

743

754

765

777

788

800

811

923

936

949

963

976

0.6

Bhp

1.76

1.86

1.97

2.08

2.20

2.32

2.44

2.57

1.09

1.16

1.24

1.31

1.40

1.48

1.57

1.66

2.71

2.85

3.00

3.15

3.30

Watts

1644

1739

1838

1942

2050

2162

2279

2401

1017

1083

1153

1225

1302

1381

1465

1552

2527

2658

2794

2935

3081

Rpm

0.8

Bhp

799 1.29

808 1.37

818 1.45

829 1.53

839 1.62

850 1.71

860 1.81

871 1.91

882 2.01

894 2.12

905 2.23

917 2.35

928 2.47

940 2.60

952 2.73

964 2.87

976 3.01

989 3.15

1001 3.31

1014 3.46

1026 3.63

Watts

1876

1977

2082

2192

2305

2423

2546

2673

1204

1276

1351

1429

1511

1597

1686

1779

2805

2942

3083

3230

3383

Rpm

1.0

Bhp

860 1.50

869 1.58

878 1.66

888 1.75

897 1.85

907 1.95

917 2.05

927 2.15

938 2.26

948 2.38

959 2.50

970 2.62

981 2.75

992 2.88

1004 3.02

1015 3.16

1027 3.31

1038 3.46

1050 3.62

1062 3.78

1074 3.95

Watts

2111

2217

2328

2443

2562

2686

2814

2947

1395

1471

1552

1636

1723

1815

1909

2008

3085

3227

3375

3528

3685

AIRFLOW

(Cfm)

4200

4300

4400

4500

4600

4700

4800

4900

5000

3000

3100

3200

3300

3400

3500

3600

3700

3800

3900

4000

4100

Rpm

1.2

Bhp

917 1.70

925 1.79

934 1.88

943 1.98

952 2.08

961 2.18

971 2.29

981 2.40

990 2.52

1000 2.64

1011 2.76

1021 2.89

1031 3.03

1042 3.16

1053 3.31

1064 3.46

1075 3.61

1086 3.77

1097 3.93

1109 4.10

1120 4.28

Watts

2822

2951

3085

3224

3367

3515

3668

3826

3990

1587

1670

1756

1845

1939

2035

2135

2240

2348

2459

2576

2697

LEGEND

Bhp



Rpm

1.4

Bhp

970 1.91

979 2.01

987 2.10

995 2.21

1004 2.31

1013 2.42

1022 2.53

1031 2.65

1040 2.77

1050 2.90

1059 3.03

1069 3.17

1079 3.31

1089 3.45

1100 3.60

1110 3.76

1121 3.91

1131 4.08

1142 4.25

1153 4.43

1164 4.61


Watts

3083

3218

3357

3502

3650

3805

3963

4128

4296

1784

1872

1963

2057

2156

2258

2364

2473

2587

2705

2826

2953

Rpm

1.6

Bhp

1021 2.13

1029 2.23

1037 2.33

1045 2.44

1053 2.55

1062 2.66

1070 2.78

1079 2.91

1088 3.03

1097 3.17

1106 3.30

1116 3.44

1125 3.59

1135 3.74

1145 3.90

1155 4.06

1165 4.22

1175 4.39

1186 4.57

1196 4.75

1207 4.94

Watts

3347

3487

3632

3782

3937

4096

4260

4430

4604

1983

2076

2172

2272

2376

2483

2595

2709

2828

2951

3079

3210

Rpm

1.8

Bhp

1070 2.34

1077 2.45

1085 2.56

1092 2.67

1100 2.79

1108 2.91

1116 3.03

1125 3.16

1133 3.30

1142 3.43

1151 3.58

1160 3.72

1169 3.87

1179 4.03

1188 4.19

1198 4.36

1208 4.53

1217 4.71

1228 4.89

1238 5.08

— —

Watts

3612

3758

3909

4064

4224

4389

4559

4734

—

2185

2283

2384

2490

2599

2711

2827

2948

3073

3201

3334

3471

NOTES:





Rpm

2.0

Bhp

1117 2.56

1123 2.67

1131 2.79

1138 2.91

1145 3.03

1153 3.15

1161 3.29

1169 3.42

1177 3.56

1186 3.70

1194 3.85

1203 4.00

1212 4.16

1221 4.32

1230 4.49

1239 4.66

1249 4.84

1258 5.02

1268 5.21

— —

— —

Watts

3880

4031

4187

4348

4514

4684

4860

—

—

2389

2492

2599

2710

2824

2942

3063

3189

3319

3452

3591

3733

— 37 —

AIRFLOW

(Cfm)

5300

5400

5500

5600

5700

5800

5900

6000

6100

6200

6300

4500

4600

4700

4800

4900

5000

5100

5200

3700

3800

3900

4000

4100

4200

4300

4400


Rpm

0.2

Bhp

676 1.19

690 1.27

705 1.36

719 1.45

734 1.55

748 1.66

763 1.76

778 1.88

792 1.99

807 2.12

822 2.25

837 2.38

852 2.52

867 2.66

882 2.81

897 2.97

912 3.13

927 3.30

943 3.47

958 3.65

973 3.83

988 4.03

1004 4.22

1019 4.43

1034 4.64

1050 4.86

1065 5.09

Watts

2917

3073

3234

3402

3575

3754

3939

4131

4329

4533

4744

1860

1975

2094

2218

2347

2482

2622

2766

1106

1185

1269

1357

1449

1545

1646

1751

Rpm

0.4

Bhp

747 1.42

760 1.52

773 1.61

786 1.71

799 1.82

813 1.93

826 2.04

840 2.16

853 2.28

867 2.41

881 2.55

895 2.69

909 2.83

923 2.98

937 3.14

951 3.30

966 3.47

980 3.64

994 3.82

1009 4.01

1023 4.20

1038 4.40

1052 4.60

1067 4.81

1082 5.03

— —

— —


Watts

3233

3395

3563

3736

3915

4100

4292

4489

4693

—

—

2130

2250

2375

2505

2640

2781

2926

3077

1328

1414

1503

1597

1695

1797

1903

2014

Rpm

0.6

Bhp

811 1.66

823 1.76

835 1.86

848 1.97

860 2.08

872 2.20

885 2.32

898 2.44

910 2.57

923 2.71

936 2.85

949 3.00

963 3.15

976 3.30

989 3.47

1003 3.63

1016 3.81

1030 3.99

1044 4.17

1057 4.37

1071 4.56

1085 4.77

1099 4.98

1113 5.20

—

—

—

—

—

—

Watts

3551

3719

3892

4071

4256

4447

4645

4848

—

—

—

2401

2527

2658

2794

2935

3081

3232

3389

1552

1644

1739

1838

1942

2050

2162

2279

Rpm

0.8

Bhp

871 1.91

882 2.01

894 2.12

905 2.23

917 2.35

928 2.47

940 2.60

952 2.73

964 2.87

976 3.01

989 3.15

1001 3.31

1014 3.46

1026 3.63

1039 3.80

1052 3.97

1065 4.15

1078 4.34

1091 4.53

1104 4.73

1117 4.93

1130 5.14

—

—

—

—

—

—

—

—

—

—

Watts

3870

4044

4223

4408

4599

4796

—

—

—

—

—

2673

2805

2942

3083

3230

3383

3540

3702

1779

1876

1977

2082

2192

2305

2423

2546

Rpm

1.0

Bhp

927 2.15

938 2.26

948 2.38

959 2.50

970 2.62

981 2.75

992 2.88

1004 3.02

1015 3.16

1027 3.31

1038 3.46

1050 3.62

1062 3.78

1074 3.95

1086 4.13

1099 4.31

1111 4.49

1123 4.69

1136 4.88

1149 5.09

—

—

—

—

—

—

—

—

—

—

—

—

—

—

Watts

4191

4370

4555

4746

—

—

—

—

—

—

—

2947

3085

3227

3375

3528

3685

3849

4017

2008

2111

2217

2328

2443

2562

2686

2814

AIRFLOW

(Cfm)

4900

5000

5100

5200

5300

5400

5500

5600

5700

5800

5900

6000

6100

6200

6300

3700

3800

3900

4000

4100

4200

4300

4400

4500

4600

4700

4800

Rpm

1.2

Bhp

—

—

—

—

—

—

981 2.40

990 2.52

1000 2.64

1011 2.76

1021 2.89

1031 3.03

1042 3.16

1053 3.31

1064 3.46

1075 3.61

1086 3.77

1097 3.93

1109 4.10

1120 4.28

1132 4.46

1144 4.65

1155 4.84

1167 5.04

1179 5.24

— —

— —

—

—

—

—

—

—

Watts

3826

3990

4159

4333

4512

4697

4889

—

—

—

—

—

—

—

—

2240

2348

2459

2576

2697

2822

2951

3085

3224

3367

3515

3668

LEGEND

Bhp



Rpm

1.4

Bhp

1031 2.65

1040 2.77

1050 2.90

1059 3.03

1069 3.17

1079 3.31

1089 3.45

1100 3.60

1110 3.76

1121 3.91

1131 4.08

1142 4.25

—

—

—

—

—

—

1153 4.43

1164 4.61

1175 4.79

1187 4.99

1198 5.19

— —

—

—

—

—

—

—

—

—

—

—

—

—


Watts

—

—

—

—

—

—

4128

4296

4471

4651

4836

—

—

—

—

2473

2587

2705

2826

2953

3083

3218

3357

3502

3650

3805

3963

Rpm

1.6

Bhp

1079 2.91

1088 3.03

1097 3.17

1106 3.30

1116 3.44

1125 3.59

1135 3.74

1145 3.90

1155 4.06

1165 4.22

1175 4.39

1186 4.57

—

—

—

—

—

—

1196 4.75

1207 4.94

1218 5.13

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

Watts

—

—

—

—

—

—

4430

4604

4784

—

—

—

—

—

—

2709

2828

2951

3079

3210

3347

3487

3632

3782

3937

4096

4260

Rpm

1.8

Bhp

—

—

—

—

—

—

—

—

—

—

—

—

1125 3.16

1133 3.30

1142 3.43

1151 3.58

1160 3.72

1169 3.87

1179 4.03

1188 4.19

1198 4.36

1208 4.53

1217 4.71

1228 4.89

1238 5.08

— —

— —

—

—

—

—

—

—

—

—

—

—

—

—

Watts

—

—

—

—

—

—

4734

—

—

—

—

—

—

—

—

2948

3073

3201

3334

3471

3612

3758

3909

4064

4224

4389

4559

Rpm

2.0

Bhp

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

1169 3.42

1177 3.56

1186 3.70

1194 3.85

1203 4.00

1212 4.16

1221 4.32

1230 4.49

1239 4.66

1249 4.84

1258 5.02

1268 5.21

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

NOTES:





Watts

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

3189

3319

3452

3591

3733

3880

4031

4187

4348

4514

4684

4860

— 38 —

PRE-START-UP

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

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

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

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

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

5. Never attempt to repair a soldered connection while the refrigerant system is under pressure.

6. Do not use torch to remove any component. The system contains oil and refrigerant under pressure. To remove a component, wear protective goggles and proceed as follows: a. Shut off gas and then electrical power to the unit.

b. Relieve all pressure from the system using both high-pressure and low-pressure ports.

Recover refrigerant.

c. Cut the component connection tubing with a tubing cutter, and remove the component from the unit.

d. Carefully unsweat the remaining tubing stubs when necessary. Oil 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, CAU-

TION, and INFORMATION labels attached to, or shipped with, the 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 an electronic leak detector, halide torch, or liquid-soap solution.

c. Inspect all field-wiring and factory-wiring connections. Be sure that connections are completed and tight.

d. Inspect coil fins. If damaged during shipping and handling, carefully straighten the fins with a fin comb.

4. Verify the following conditions: a. Make sure that condenser fan blade is correctly positioned in the fan orifice. See Condenser-Fan

Adjustment section on page 43 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

I. UNIT PREPARATION

Make sure that unit has been installed in accordance with installation instructions and applicable codes.

II. RETURN-AIR FILTERS

Make sure correct filters are installed in filter tracks (see

Table 1). Do not operate unit without return-air filters.

III. OUTDOOR-AIR INLET SCREENS

Outdoor-air inlet screen(s) must be in place before operating unit.

IV. COMPRESSOR MOUNTING

Compressors are internally spring mounted. Do not loosen or remove compressor holddown bolts.

V. INTERNAL WIRING

Check all electrical connections in unit control boxes.

Tighten as required.

VI. GAS PIPING

Check gas piping for leaks.

WARNING: Disconnect gas piping from unit when leak testing at pressure greater than 1 /

2

psig. Pressures greater than 1 /

2

psig will cause gas valve damage resulting in hazardous condition. If gas valve is subjected to pressure greater than

1

/

2

psig, it must be replaced before use. When pressure testing fieldsupplied gas piping at pressures of 1 /

2

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

VII. REFRIGERANT SERVICE PORTS

To service refrigerant service ports, remove compressor access panel. Each unit system has 4 Schrader-type service gage ports: one on the suction line, one on the liquid line, one on the compressor discharge line and one on the discharge line underneath the high-pressure switch. Be sure that caps on the ports are tight. The Schrader-type valve on the discharge line is located under the low-pressure switch.

VIII. HIGH FLOW VALVES

High flow refrigerant valves are located on the compressor hot gas and suction tubes. Large black plastic caps distinguish these valves with O-rings located inside the caps.

These valves cannot be accessed for service in the field.

Ensure that the plastic caps are in place and tight or the possibility of refrigerant leakage could occur.

IX. COMPRESSOR ROTATION

It is important to be certain that the compressors are rotating in the proper direction. To determine whether or not compressors are rotating in the proper direction:

1. Connect service gages to the 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 pressure does not rise to normal levels:

1. Note that the evaporator fan is probably also rotating in the wrong direction.

2. Turn off power to the unit.

3. Reverse any two of the unit power leads.

4. Reapply power to the compressor.

— 39 —

The suction and discharge pressure levels should now move to their normal start-up levels.

NOTE: When the compressors are rotating in the wrong direction, the unit will have increased noise levels and will not provide heating and cooling.

X. COOLING

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 contactors.

Check unit charge. Refer to Refrigerant Charge section on page 43.

Reset thermostat at a position above room temperature.

Compressor will shut off. Evaporator fan will shut off after

30-second delay.

A. To Shut Off Unit

Set system switch 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 Cycle-LOC™ protection device.

Unit shuts down on any safety trip and remains off; an indicator light on the thermostat comes on. Check reason for safety trip.

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

XI. 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.

After ensuring that the unit continues to heat the building, lower the thermostat setting below room temperature and verify that the burners and evaporator fan turn off.

Refer to Table 23 for the correct orifice to use at high altitudes.

NOTE: Upon a call for heat the main burners will remain on for a minimum of 60 seconds.

Table 23 — Altitude Compensation*

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

90,000-224,000 BTUH

NOMINAL INPUT

Natural

Gas

Orifice

Size†

Liquid

Propane

Orifice

Size†

31

32

32

32

33

34

35

36

37

38

39

40

41

42

41

42

42

42

43

43

44

44

45

46

47

47

48

48

250,000 BTUH

NOMINAL INPUT

Natural

Gas

Orifice

Size†

30

30

31

32

33

34

35

36

37

38

39

40

41

42

Liquid

Propane

Orifice

Size†

38

39

40

41

44

45

45

46

42

43

43

44

47

47

*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.

†Orifice available through your local Bryant distributor.

XII. HEATING

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

2. Turn on electrical supply and open 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 burners do not light, then there is a 22-second delay before another 5-second try. If the burners still do not light, the time delay is repeated. If the burners do not light within 15 minutes, there is a lockout. To reset the control, break the

24 v power to W1.

6. The evaporator-fan will turn on 45 seconds after a call for heating.

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

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

Table 1.

NOTE: The default value for the evaporator-fan motor 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 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 switch trips at 30 seconds, the evaporator-fan on delay for the next cycle will occur at 25 seconds.) To prevent short-cycling, a 5-second reduction will only occur if a minimum of 10 minutes has elapsed 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 trips 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 default value, reset the power to the unit.

To Shut Off Unit

Set system selector switch at OFF position. Resetting heating selector lever below room temperature will temporarily shut off unit until space temperature falls below thermostat setting.

XIII. SAFETY RELIEF

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

XIV. 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 selector switch is turned to the OFF position, there is a

30-second delay before the fan turns off.

— 40 —

XV. OPERATING SEQUENCE

A. Cooling, Units Without Economizer

When thermostat calls for cooling, terminals G and Y1 are energized. The indoor (evaporator) fan contactor (IFC) and compressor contactor no. 1 (C1) are energized, and evaporatorfan motors, compressor no. 1, and condenser fans start. The condenser-fan motor runs continuously while unit is cooling.

For units with 2 stages of cooling, if the thermostat calls for a second stage of cooling by energizing Y2, compressor contactor no. 2 (C2) is energized and compressor no. 2 starts.

When the thermostat is satisfied, C1 and C2 are deenergized and the compressors and outdoor (condenser) fan motors

(OFM) shut off. After a 30-second delay, the indoor (evaporator) fan motor (IFM) shuts off. If the thermostat fan selector switch is in the ON position, the evaporator motor will run continuously.

B. Heating, Units Without Economizer

When the thermostat calls for heating, terminal W1 is energized. In order to prevent thermostat short-cycling, the unit is locked into the heating mode for at least 1 minute when

W1 is energized. The induced-draft motor (IDM) is then 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 and W2 are deenergized, the IFM stops after a 45-second time-off delay.

C. Cooling, Units With EconoMi$er IV

When free cooling is not available, the compressors will be controlled by the zone thermostat. When free cooling is available, the outdoor-air damper is modulated by the

EconoMi$er IV control to provide a 50 to 55 F supply-air temperature into the zone. As the supply-air temperature fluctuates above 55 or below 50 F, the dampers will be modulated (open or close) to bring the supply-air temperature back within set point limits.

Integrated EconoMi$er IV operation on single-stage units requires a 2-stage thermostat (Y1 and Y2).

For EconoMi$er IV operation, there must be a thermostat call for the fan (G). This will move the damper to its minimum position during the occupied mode.

If the increase in cooling capacity causes the supply-air temperature to drop below 45 F, then the outdoor-air damper position will be fully closed. If the supply-air temperature continues to fall, the outdoor-air damper will close. Control returns to normal once the supply-air temperature rises above 48 F.

If optional power exhaust is installed, as the outdoor-air damper opens and closes, the power exhaust fans will be energized and deenergized.

If field-installed accessory CO

2

sensors are connected to the

EconoMi$er IV control, a demand controlled ventilation strategy will begin to operate. As the CO

2

level in the zone increases above the CO

2

set point, the minimum position of the damper will be increased proportionally. As the CO

2

level decreases because of the increase in fresh air, the outdoor-air damper will be proportionally closed. Damper position will follow the higher demand condition from DCV mode or free cooling mode.

Damper movement from full closed to full open (or vice versa) will take between 1 1 /

2

and 2 1 /

2

minutes.

If free cooling can be used as determined from the appropriate changeover command (switch, dry bulb, enthalpy curve, differential dry bulb, or differential enthalpy), a call for cooling (Y1 closes at the thermostat) will cause the control to modulate the dampers open to maintain the supply-air temperature set point at 50 to 55 F.

As the supply-air temperature drops below the set point range of 50 to 55 F, the control will modulate the outdoor-air dampers closed to maintain the proper supply-air temperature.

D. Heating, Units With EconoMi$er IV

When the room temperature calls for heat, the heating controls are energized as described in the Heating, Units Without EconoMi$er IV section. When the thermostat is satisfied, the economizer damper moves to the minimum position.

E. Units With Perfect Humidity™ Dehumidification System

Normal Design Cooling Operation

When the rooftop operates under the normal sequence of operation, the compressors will cycle to maintain indoor conditions. See Fig. 42.

The Perfect Humidity dehumidification system includes a factory-installed Motormaster® low ambient control to keep the head and suction pressure high, allowing normal design cooling mode operation down to 0° F.

Subcooling Mode

When subcooling mode is initiated, this will energize (close) the liquid line solenoid valve (LLSV) forcing the hot liquid refrigerant to enter into the subcooling coil (see Fig. 43).

Fig. 42 — Perfect Humidity

Normal Design Cooling Operation

Fig. 43 — Perfect Humidity Subcooling Mode Operation

— 41 —

As the hot liquid refrigerant passes through the subcooling/ reheat dehumidification coil, it is exposed to the cold supply airflow coming through the evaporator coil. The liquid is further subcooled to a temperature approaching the evaporator leaving-air temperature. The liquid then enters a thermostatic expansion valve (TXV) where the liquid drops to a lower pressure. The TXV does not have a pressure drop great enough to change the liquid to a 2-phase fluid, so the liquid then enters the Acutrol™ device at the evaporator coil.

The liquid enters the evaporator coil at a temperature lower than in standard cooling operation. This lower temperature increases the latent capacity of the rooftop unit. The refrigerant passes through the evaporator and is turned into a vapor. The air passing over the evaporator coil will become colder than during normal operation. However, as this same air passes over the subcooling coil, it will be slightly warmed, partially reheating the air.

Subcooling mode operates only when the outside-air temperature is warmer than 40 F. A factory-installed temperature switch located in the condenser section will lock out subcooling mode when the outside temperature is cooler than 40 F.

The scroll compressors are equipped with crankcase heaters to provide protection for the compressors due to the additional refrigerant charge required by the subcooling/reheat coil.

When in subcooling mode, there is a slight decrease in system total gross capacity (5% less), a lower gross sensible capacity (20% less), and a greatly increased latent capacity

(up to 40% more).

Hot Gas Reheat Mode

When the humidity levels in the space require humidity control, a hot gas solenoid valve (specific to hot gas reheat mode only) will open to bypass a portion of hot gas refrigerant around the condenser coil (see Fig. 44).

This hot gas will mix with liquid refrigerant leaving the condenser coil and flow to the subcooling/reheat dehumidification coil. Now the conditioned air coming off the evaporator will be cooled and dehumidified, but will be warmed to neutral conditions (72 F to 75 F) by the subcooling/reheat dehumidification coil.

NOTE: The 581B090-150 rooftop units can operate one circuit in subcooling mode and one circuit in hot gas reheat mode or both circuits in hot gas reheat mode, or both in normal design cooling mode.

The net effect of the rooftop when in hot gas reheat mode is to provide nearly all latent capacity removal from the space when sensible loads diminish (when outdoor temperature conditions are moderate). When in hot gas reheat mode, the unit will operate to provide mostly latent capacity and extremely low sensible heat ratio capability.

Fig. 44 — Perfect Humidity

Hot Gas Reheat Mode Operation

Similar to the subcooling mode of operation, hot gas reheat mode operates only when the outside air temperature is warmer than 40 F. Below this temperature, a factoryinstalled outside air temperature switch will lockout this mode of operation.

See Table 24 for the Perfect Humidity™ dehumidification system sequence of operation.

SERVICE

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

I. CLEANING

Inspect the unit interior at the beginning of each heating and cooling season and as operating conditions require.

A. Evaporator Coil

1. Turn unit power. Remove evaporator coil access panel.

2. If economizer or two-position damper is installed, remove economizer or two-position damper by disconnecting Molex plug and removing mounting screws.

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 the return-air section to remove foreign material.

Table 24 — Perfect Humidity Dehumidification System Sequence of Operation and System Response — Dual Compressor Units

THERMOSTAT INPUT

OAT

H

Off

On

On

On

On

On

Y1

—

On

On

On

On

Off

LEGEND

Y2

—

On

Off

On

Off

Off

ECONOMIZER FUNCTION

OAT < Economizer

Set Point

Economizer Compressor 1

First Stage

Subcooling

Mode

581B UNIT OPERATION

Hot Gas

Reheat Mode

Compressor 2

Unit Operates Under Normal Sequence of Operation

No

No

Yes

Yes

No

Off

Off

On

On

Off

On

On

On

On

On

Yes

Yes

Yes

No

No

No

No

No

Yes

Yes

On

On

On

On

On

Second Stage

Subcooling

Mode

Yes

No

No

No

No

Hot Gas

Reheat Mode

No

Yes

Yes

Yes

Yes

NOTE: On a thermostat call for W1, all cooling and dehumidification will be off.

— Outdoor Air Temperature

— 42 —

5. Flush condensate pan after completion.

6. Reinstall economizer or two-position damper and filters.

7. Reconnect wiring.

8. Replace access panels.

B. Condenser Coil

1. Turn off unit power.

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

3. Remove condenser coil corner post. See Fig. 45. To hold top panel open, place coil corner post between top panel and center post. See Fig. 46.

4. Remove screws securing coil to center post.

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. 47.

6. Use a water hose or other suitable equipment to flush down between the 2 coil sections to remove dirt and debris. 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.

9. Reinstall the coil corner post, and replace all screws.

C. Condensate Drain

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

D. 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.

E. Outdoor-Air Inlet Screens

Clean screens with steam or hot water and a mild detergent.

Do not use disposable filters in place of screens.

II. LUBRICATION

A. Compressors

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

B. 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.

III. CONDENSER-FAN ADJUSTMENT (FIG. 48)

1. Shut off unit power supply.

2. Remove condenser-fan assembly (grille, motor, motor cover, and fan) and loosen fan hub setscrews.

3. Adjust fan height as shown in Fig. 48.

4. Tighten setscrews and replace condenser-fan assembly.

IV. ECONOMIZER ADJUSTMENT

Refer to Optional EconoMi$er IV section on page 15.

V. REFRIGERANT CHARGE

Amount of refrigerant charge is listed on unit nameplate

(also refer to Table 1).

Unit panels must be in place when the unit is operating during charging procedure.

— 43 —

A. No Charge

Use standard evacuating techniques. After evacuating system, weigh in the specified amount of refrigerant (refer to

Table 1).

Fig. 45 — Cleaning Condenser Coil

Fig. 46 — Propping Up Top Panel

Fig. 47 — Separating Coil Sections

Fig. 48 — Condenser-Fan Adjustment

B. Low Charge Cooling

Use Cooling Charging Charts, Fig. 49-52, 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.

C. Perfect Humidity™ System Charging

The system charge for units with the Perfect Humidity system is greater than that of the standard unit alone. The charge for units with this option is indicated on the unit nameplate drawing. Also refer to Fig. 53-55. To charge systems using the Perfect Humidity dehumidification system, fully evacuate, recover, and recharge the system to the nameplate specified charge level.

To check or adjust refrigerant charge on systems using the Perfect Humidity dehumidification system, charge per Fig. 53-55.

NOTE: When using the charging charts, it is important that only the subcooling/reheat dehumidification coil liquid line solenoid valve be energized. The subcooling/reheat dehumidification coil liquid line solenoid valve MUST be energized to use the charging charts and the outdoor motor speed controller jumpered to run the fan at full speed.

The charts reference a liquid pressure (psig) and temperature at a point between the condenser coil and the subcooling/reheat dehumidification coil. A tap is provided on the unit to measure liquid pressure entering the subcooling/ reheat dehumidification coil.

IMPORTANT: The subcooling mode charging charts (Fig. 53-

55) are to be used ONLY with units having the optional Perfect Humidity™ subcooling system. DO NOT use standard charts (Fig. 49-52) for units with Perfect Humidity system, and DO NOT use Fig. 53-55 for standard units.

D. To Use Cooling Charging Chart, Standard Unit

Take the outdoor ambient temperature and read the suction pressure gage. Refer to chart to determine what the 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. 51, Circuit 1)

Outdoor Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 F

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

Suction Temperature should be . . . . . . . . . . . . . . . . . . . . 48 F

(Suction Temperature may vary ± 5° F.)

If charging device is used, temperature and pressure readings must be accomplished using the charging charts.

Fig. 50 — Cooling Charging Chart, Standard 581B102 Units

Fig. 49 — Cooling Charging Charts, Standard 581B090 Units

— 44 —



— 45 —

E. To Use Cooling Charging Chart, Units With Perfect

Humidity™ Dehumidification System

Refer to charts (Fig. 53-55) to determine the proper leaving condenser pressure and temperature.

Example (Fig. 53, Circuit 1):

Leaving Condenser Pressure. . . . . . . . . . . . . . . . . . . .300 psig

Leaving Condenser Temperature . . . . . . . . . . . . . . . . . . 117 F



Fig. 55 — Cooling Charging Chart, 581B150 with the

Perfect Humidity Dehumidification System


Fig. 53 — Cooling Charging Chart, 581B090

With the Perfect Humidity™ Dehumidification System


Fig. 54 — Cooling Charging Chart, 581B102 and 581B120 with the Perfect Humidity Dehumidification System

— 46 —

VI. 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.

CAUTION: When working on gas train, do not hit or plug orifice spuds.

VII. FLUE GAS PASSAGEWAYS

To inspect the flue collector 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 5 screws holding the blower housing to the vestibule cover.

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

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

VIII. COMBUSTION-AIR BLOWER

Clean periodically to assure 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 screws that attach induced-draft motor assembly to the vestibule cover.

3. The blower wheel can be cleaned at this point. If additional cleaning is required, continue with Steps 4 and 5.

4. Remove blower by removing 2 setscrews.

5. Remove motor by removing 4 screws that hold blower housing 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.

IX. LIMIT SWITCH

Remove blower access panel (see Fig. 7). Limit switch is located on the fan deck.

X. BURNER IGNITION

Unit is equipped with a direct-spark ignition 100% lockout system. Integrated Gas Unit Controller (IGC) is located in the control box (Fig. 12). The IGC contains a self-diagnostic

LED (light-emitting diode) that can be observed through the viewport. During service, refer to the label on the control box cover or Table 25 for an explanation of LED error code descriptions.

A single LED on the Integrated Gas Unit Controller (IGC) provides a visual display of operational or sequential problems when the power supply is uninterrupted. When a break in power occurs, the IGC will be reset (resulting in a loss of fault history). The evaporator fan on/off time delay will also be reset. Refer to Start-Up, Heating section on page 40 for additional information.

If lockout occurs, unit may be reset by interrupting the power supply to unit for at least 5 seconds.

Table 25 — LED Error Code Description*

LED INDICATION

ON

OFF

1 Flash†

2 Flashes

3 Flashes

4 Flashes

5 Flashes

6 Flashes

7 Flashes

8 Flashes

9 Flashes

ERROR CODE DESCRIPTION

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

Software Lockout

LEGEND

LED — Light-Emitting Diode

*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 operate when this code is displayed.

IMPORTANT: Refer to Troubleshooting Tables 26-30 for additional information.

A. Removal and Replacement of Gas Train (See Fig. 56 and 57)

1. Shut off manual gas valve.

2. Shut off power to unit.

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 wires at the Integrated Gas Unit Controller (IGC).

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

9. Remove the gas valve bracket.

10. Slide the burner tray out of the unit (see Fig. 57).

11. To reinstall, reverse the procedure outlined above.

B. Cleaning and Adjustment

1. Remove burner rack from unit as described in

Removal and Replacement of Gas Train section above.

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

3. Using a soft brush, clean burners and crossover port as required.

4. Adjust spark gap. See Fig. 58.

5. Reinstall burners on rack.

6. Reinstall burner rack as described above.

XI. REPLACEMENT PARTS

A complete list of replacement parts may be obtained from your Bryant distributor upon request.

INDUCED-DRAFT

MOTOR

MOUNTING

PLATE

INDUCED-DRAFT

MOTOR

Fig. 56 — Burner Section Details

Fig. 57 — Burner Tray Details

ROLLOUT

SWITCH

BURNER

SECTION

FLUE

EXHAUST

— 47 —

581B090, 102

125,000/90,000 BTUH INPUT

581B090-120

180,000/120,000 BTUH INPUT

581B090-150

224,000/180,000 BTUH INPUT

581B120, 150

250,000/200,000 BTUH INPUT

Fig. 58 — Spark Gap Adjustment

— 48 —

TROUBLESHOOTING

I. UNIT TROUBLESHOOTING

Refer to Tables 26-30 and Fig. 59.

PROBLEM

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.

Compressor No. 2 Will Not Run.

Table 26 — Cooling Service Analysis

CAUSE

Power failure.

Fuse blown or circuit breaker tripped.

Defective thermostat, contactor, transformer, or control relay.

Insufficient line voltage.

Incorrect or faulty wiring.

Thermostat setting too high.

Faulty wiring or loose connections in compressor circuit.

Compressor motor burned out, seized, or internal overload open.

Defective overload.

One leg of 3-phase power dead.

REMEDY

Call power company.

Replace fuse or reset circuit breaker.

Replace component.

Determine cause and correct.

Check wiring diagram and rewire correctly.

Lower thermostat setting below room temperature.

Check wiring and repair or replace.

Determine cause. Replace compressor.

Refrigerant overcharge or undercharge.

Defective compressor.

Insufficient line voltage.

Blocked condenser.

Defective overload.

Defective thermostat.

Faulty condenser-fan motor.

Restriction in refrigerant system.

Dirty air filter.

Unit undersized for load.

Thermostat set too low.

Low refrigerant charge.

Leaking valves in compressor.

Air in system.

Condenser coil dirty or restricted.

Dirty air filter.

Dirty condenser coil.

Refrigerant overcharged.

Air in system.

Condenser air restricted or air short-cycling.


Compressor valves leaking.

Restriction in liquid tube.

High heat load.

Compressor valves leaking.

Refrigerant overcharged.

Dirty air filter.


Metering device or low side restricted.

Insufficient evaporator airflow.

Temperature too low in conditioned area.

Field-installed filter drier restricted.

Unit in economizer mode.

Determine cause and replace.

Replace fuse or reset circuit breaker.

Determine cause.

Recover refrigerant, evacuate system, and recharge to nameplate.

Replace and determine cause.



Determine cause and replace.

Replace thermostat.

Replace.

Locate restriction and remove.

Replace filter.

Decrease load or increase unit size.

Reset thermostat.

Locate leak, repair, and recharge.

Replace compressor.

Recover refrigerant, evacuate system, and recharge.

Clean coil or remove restriction.

Replace filter.

Clean coil.

Recover excess refrigerant.

Recover refrigerant, evacuate system, and recharge.


Check for leaks, repair, and recharge.

Replace compressor.

Remove restriction.

Check for source and eliminate.

Replace compressor.

Recover excess refrigerant.

Replace filter.

Check for leaks, repair, and recharge.

Remove source of restriction.

Increase air quantity. Check filter and replace if necessary.

Reset thermostat.

Replace.

Proper operation; no remedy necessary.

— 49 —

Table 27 — Heating Service Analysis

PROBLEM

Burners Will Not Ignite.

Inadequate Heating.

CAUSE

Misaligned spark electrodes.

No gas at main burners.

Broken thermostat wires.

Dirty air filter.

Gas input to unit too low.

REMEDY

Check flame ignition and sensor electrode positioning.

Adjust as needed.

Check gas line for air; purge as necessary. After purging gas line of air, allow gas to dissipate for at least 5 minutes before attempting to relight unit.

Check gas valve.

Drain water and install drip leg to trap water.

Check power supply, fuses, wiring, and circuit breaker.

Water in gas line.

No power to furnace.

No 24 v power supply to control circuit.

Check transformer. Transformers with internal overcurrent protection require a cool-down period before resetting. Check 24-v circuit breaker; reset if necessary.

Miswired or loose connections.

Check all wiring and wirenut connections.

Burned-out heat anticipator in thermostat. Replace thermostat.

Run continuity check. Replace wires, if necessary.

Clean or replace filter as necessary.

Unit undersized for application.

Restricted airflow.

Blower speed too low.

Limit switch cycles main burners.

Too much outdoor air.

Check gas pressure at manifold. Clock gas meter for input. If too low, increase manifold pressure, or replace with correct orifices.

Replace with proper unit or add additional unit.

Clean filter, replace filter, or remove any restrictions.

Install alternate motor, if applicable, or adjust pulley to increase fan speed.

Check rotation of blower, thermostat heat anticipator settings, and temperature rise of unit. Adjust as needed.

Adjust minimum position.

Poor Flame Characteristics. Incomplete combustion (lack of combustion air) results in:

Aldehyde odors, CO, sooting flame, or floating flame.

Check economizer operation.

Check all screws around flue outlets and burner compartment. Tighten as necessary.

Cracked heat exchanger. Replace 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.

Burners Will Not Turn Off.

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

Wait until mandatory one minute time period has elapsed or power to unit.

Table 28 — Perfect Humidity™ Dehumidification System Subcooling Mode Service Analysis

PROBLEM

Subcooling Mode (Liquid Reheat)

Will Not Energize.

Low System Capacity.

Loss of Compressor Superheat

Conditions with Subcooling/Reheat

Dehumidification Coil Energized.

CAUSE

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.

Liquid line solenoid valve will not open.

Low refrigerant charge or frosted evaporator coil.

Thermostatic expansion valve (TXV).

REMEDY

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 lowpressure switch to reset. Replace switch if it will not close.

3. Transformer bad; check transformer.

1. Solenoid coil defective; replace.

2. Solenoid valve stuck open; replace.

Valve is stuck closed; replace valve.

1. Check charge amount. Charge per Fig. 53-55.

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

1. Check TXV bulb mounting, and secure tightly to suction line.

2. Replace TXV if stuck open or closed.

Table 29 — Perfect Humidity Dehumidification System Hot Gas Reheat Mode Service Analysis

PROBLEM

Reheat Mode Will Not Energize.

Loss of Compressor Superheat

Conditions with Subcooling/Reheat

Dehumidification Coil Energized.

Excessive Superheat.

CAUSE

No power to control transformer from evaporator-fan motor.

No power from control transformer to hot gas line solenoid valve.

Hot gas line solenoid valve will not operate.

Low refrigerant charge or frosted evaporator coil.

Thermostatic expansion valve (TXV).

Liquid line solenoid valve will not operate.

Hot gas line solenoid valve will not close.

REMEDY

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 lowpressure switch to reset. Replace switch if it will not close.

3. Transformer bad; check transformer.

1. Solenoid coil defective; replace.

2. Solenoid valve stuck closed; replace.

1. Check charge amount. Charge per Fig. 53-55.

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

1. Check TXV bulb mounting, and secure tightly to suction line.

2. Replace TXV if stuck open or closed.

Valve is stuck; replace valve.

Valve is stuck; replace valve.

— 50 —

Table 30 — LED Error Code Service Analysis

(LED OFF)

SYMPTOM

Hardware Failure.

Limit Switch Fault.

(LED 2 flashes)

Flame Sense Fault.

(LED 3 flashes)

4 Consecutive Limit Switch Trips.

(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)

Software Lockout

(LED 9 flashes)

LEGEND

IGC

— Integrated Gas Unit Controller

LED — Light-Emitting Diode

CAUSE

Loss of power to control module (IGC).

High temperature limit switch is open.

Check the operation of the evaporator-fan motor. 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.

The IGC sensed flame that should not be present.

Inadequate airflow to unit.

Unit unsuccessfully attempted ignition for

15 minutes.

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

Check operation of evaporator-fan motor and that supply-air 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.

Rollout switch has opened.

REMEDY

Check 5 amp fuse on IGC, power to unit, 24-v circuit breaker, and 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.

Rollout switch will automatically reset, but IGC will continue to lock out unit. Check gas valve operation. Ensure that induced-draft 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.

Microprocessor has sensed an error in the software or hardware.

Electrical interference is impeding the IGC software.

Reset 24-v to control board or turn thermostat off then on. Fault will automatically reset itself after one hour.

CAUTION:

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 Table 27 — Heating Service Analysis for additional heating section troubleshooting information.

— 51 —

NOTES:

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. Use copper conductors only.

4. 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 (ORN) and connect to 208 v tap (RED).

Insulate end of 230 v tap.

C

CB

—

Contactor, Compressor

—

Circuit Breaker

CLO —

Compressor Lockout

COMP —

Compressor Motor

EQUIP —

Equipment

FPT —

Freeze Up Protection Thermostat

GND —

Ground

HPS —

High-Pressure Switch

HS

I

IDM

IFC

—

Hall-Effect Sensor

—

Ignitor

—

Induced-Draft Motor

—

Indoor Fan Contactor

LEGEND

IFM —

Indoor Fan Motor

IFMOVL —

Indoor Fan Motor Overload Switch

IGC

LPS

—

—

Integrated Gas Unit Controller

Low-Pressure Switch

LS

MGV

OFC

OFM

—

—

—

—

Limit Switch

Main Gas Valve

Outdoor Fan Contactor

Outdoor Fan Motor

P

PL

QT

—

Plug

—

Plug Assembly

—

Quadruple Terminal

Fig. 59 — Typical Schematic (208/230-3-60 Shown)

— 52 —

RS

SAT

—

Rollout Switch

—

Supply Air Temperature Sensor

SEN —

Sensor

TRAN —

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.

II. ECONOMI$ER IV TROUBLESHOOTING

See Table 31 for EconoMi$er IV logic.

A functional view of the EconoMi$er IV is shown in Fig. 60.

Typical settings, sensor ranges, and jumper positions are also shown. An EconoMi$er IV simulator program is available from Bryant to help with EconoMi$er IV training and troubleshooting.

A. EconoMi$er IV Preparation

This procedure is used to prepare the EconoMi$er IV for troubleshooting. No troubleshooting or testing is done by performing the following procedure.

NOTE: This procedure requires a 9-v battery, 1.2 kilo-ohm resistor, and a 5.6 kilo-ohm resistor which are not supplied with the EconoMi$er IV.

IMPORTANT:

Be sure to record the positions of all potentiometers before starting troubleshooting.

1. Disconnect power at TR and TR1. All LEDs should be off. Exhaust fan contacts should be open.

2. Disconnect device at P and P1.

3. Jumper P to P1.

4. Disconnect wires at T and T1. Place 5.6 kilo-ohm resistor across T and T1.

5. Jumper TR to 1.

6. Jumper TR to N.

7. If connected, remove sensor from terminals S

O

and +.

Connect 1.2 kilo-ohm 4074EJM checkout resistor across terminals S

O

and +.

8. Put 620-ohm resistor across terminals S

R

and +.

9. Set minimum position, DCV set point, and exhaust potentiometers fully CCW (counterclockwise).

10. Set DCV maximum position potentiometer fully CW

(clockwise).

11. Set enthalpy potentiometer to D.

12. Apply power (24 vac) to terminals TR and TR1.

B. Differential Enthalpy

To check differential enthalpy:

1. Make sure EconoMi$er IV preparation procedure has been performed.

2. Place 620-ohm resistor across S

O

and +.

3. Place 1.2 kilo-ohm resistor across S

R

and +. The Free

Cool LED should be lit.

4. Remove 620-ohm resistor across S

O

and +. The Free

Cool LED should turn off.

5. Return EconoMi$er IV settings and wiring to normal after completing troubleshooting.

C. Single Enthalpy

To check single enthalpy:


2. Set the enthalpy potentiometer to A (fully CCW). The

Free Cool LED should be lit.

3. Set the enthalpy potentiometer to D (fully CW). The

Free Cool LED should turn off.


D. DCV (Demand Controlled Ventilation) and Power

Exhaust

To check DCV and Power Exhaust:


— 53 —

2. Ensure terminals AQ and AQ1 are open. The LED for both DCV and Exhaust should be off. The actuator should be fully closed.

3. Connect a 9-v battery to AQ (positive node) and AQ1

(negative node). The LED for both DCV and Exhaust should turn on. The actuator should drive to between

90 and 95% open.

4. Turn the Exhaust potentiometer CW until the

Exhaust LED turns off. The LED should turn off when the potentiometer is approximately 90%. The actuator should remain in position.

5. Turn the DCV set point potentiometer CW until the

DCV LED turns off. The DCV LED should turn off when the potentiometer is approximately 9 v. The actuator should drive fully closed.

6. Turn the DCV and Exhaust potentiometers CCW until the Exhaust LED turns on. The exhaust contacts will close 30 to 120 seconds after the Exhaust

LED turns on.


E. DCV Minimum and Maximum Position

To check the DCV minimum and maximum position:


2. Connect a 9-v battery to AQ (positive node) and AQ1

(negative node). The DCV LED should turn on. The actuator should drive to between 90 and 95% open.

3. Turn the DCV Maximum Position potentiometer to midpoint. The actuator should drive to between 20 and 80% open.

4. Turn the DCV Maximum Position potentiometer to fully CCW. The actuator should drive fully closed.

5. Turn the Minimum Position potentiometer to midpoint. The actuator should drive to between 20 and

80% open.

6. Turn the Minimum Position Potentiometer fully CW.

The actuator should drive fully open.

7. Remove the jumper from TR and N. The actuator should drive fully closed.


F. Supply-Air Input

To check supply-air input:


2. Set the Enthalpy potentiometer to A. The Free Cool

LED turns on. The actuator should drive to between

20 and 80% open.

3. Remove the 5.6 kilo-ohm resistor and jumper T to T1.

The actuator should drive fully open.

4. Remove the jumper across T and T1. The actuator should drive fully closed.


G. EconoMi$er IV Troubleshooting Completion

This procedure is used to return the EconoMi$er IV to operation. No troubleshooting or testing is done by performing the following procedure.

1. Disconnect power at TR and TR1.

2. Set enthalpy potentiometer to previous setting.

3. Set DCV maximum position potentiometer to previous setting.

4. Set minimum position, DCV set point, and exhaust potentiometers to previous settings.

5. Remove 620-ohm resistor from terminals S

R

and +.

6. Remove 1.2 kilo-ohm checkout resistor from terminals S

O

and +. If used, reconnect sensor from terminals S

O

and +.

7. Remove jumper from TR to N.

8. Remove jumper from TR to 1.

9. Remove 5.6 kilo-ohm resistor from T and T1. Reconnect wires at T and T1.

10. Remove jumper from P to P1. Reconnect device at P and P1.

11. Apply power (24 vac) to terminals TR and TR1.

Table 31 — EconoMi$er IV Input/Output Logic

Demand Control

Ventilation (DCV)

Below set

(DCV LED Off)

Above set

(DCV LED On)

High

(Free Cooling LED Off)

Low

(Free Cooling LED On)

High

(Free Cooling LED Off)

Low

INPUTS

Enthalpy*

Outdoor

(Free Cooling LED On)

Return

Low

High

Low

High

24 vac (Occupied), no power (Unoccupied).

**Modulation is based on the supply-air sensor signal.

††Modulation is based on the DCV signal.

Y1 Y2

Compressor

Stage

1

Stage

2

On On On

On Off On

Off Off Off

On On On

On Off Off

Off Off Off

On On On

On Off On

Off Off Off

On On On

On Off Off

Off Off Off

On

Off

Off

Off

Off

Off

On

Off

Off

Off

Off

Off

*For single enthalpy control, the module compares outdoor enthalpy to the ABCD set point.

†Power at N terminal determines Occupied/Unoccupied setting:

OUTPUTS

N Terminal†

Occupied

Minimum position

Damper

Closed

Unoccupied

Modulating** (between min. position and full-open)

Minimum position

Modulating†† (between min. position and DCV maximum)

Modulating***

Modulating** (between closed and full-open)

Closed

Modulating†† (between closed and DCV maximum)

Modulating†††

***Modulation is based on the greater of DCV and supply-air sensor signals, between minimum position and either maximum position

(DCV) or fully open (supply-air signal).

†††Modulation is based on the greater of DCV and supply-air sensor signals, between closed and either maximum position (DCV) or fully open (supply-air signal).

Fig. 60 — EconoMi$er IV Functional View

— 54 —

Access panels

15

Altitude compensation

40

Barometric flow capacity

17

Burner ignition

47

Burner rack

47

Burner section

47

Burner spark gap

48

Charging chart, refrigerant

44-46

Clearance

4

CO

2

sensor

Configuration

21

Settings

19, 21

Combustion blower wheel

46

Compressor

Lubrication

43

Mounting

39

Rotation

39

Condensate drain

Cleaning

43

Location

2, 4

Condenser coil

7

Cleaning

43

Condenser fan

7

Adjustment

43

Control circuit

Wiring

9

Wiring raceway

10

Convenience outlet

14

Demand control ventilation

20

Dehumidification

21

Dimensions

3, 6

Ductwork

2

EconoMi$er IV

15-21

Adjustment

43

Components

53, 54

Troubleshooting

17

Wiring

16

Electrical connections

9

Electrical data

11, 12

Enthalpy changeover set points

19

Evaporator coil

7

Cleaning

42

Evaporator fan motor

Lubrication

43

Motor data

24

Performance

25-38

Pulley adjustment

23

Pulley setting

7, 23

Speed

7

Factory-installed options

Convenience outlet

14

EconoMi$er IV

15-21

Humidistat

13

Manual outdoor air damper

14

Perfect Humidity™ dehumidification

system

13

Filter

Cleaning

43

Installation

16

Size

8

Flue gas passageways

46

Flue hood

4, 9

Freeze protection thermostat

8

Gas connection

8

Gas input

8

Gas piping

4, 9, 39

Gas pressure

1, 8

Heat anticipator settings

8, 9

Heat exchanger

8

High flow valves

39

High pressure switch

8

Horizontal units

1, 2

Humidistat

13

Indoor air quality sensor

19

Integrated gas controller

47

Error codes

47, 51

Leak test

39

Limit switch

47

INDEX

Liquid propane

8

Low pressure switch

8

Main burners

40, 46

Manual outdoor air damper

14

Mounting

Compressor

39

Unit

4

Natural gas

8

Operating limits

2

Operating sequence

41, 42

Cooling

41

EconoMi$er IV

41

Heating

41

Perfect Humidity dehumidification

system

41, 42

Outdoor air hood

14-16

Outdoor air inlet screens

39, 43

Dimensions

8

Outdoor air temperature sensor

17

Perfect Humidity dehumidification

system

13, 22, 41, 42, 44, 46, 50

Physical data

7, 8

Power supply

9

Wiring

10

Pre-start-up

39

Pressure switches

High pressure

8

Low pressure

8

Refrigerant

Charge

43

Type

7

Refrigerant service ports

39

Replacement parts

47

Return air filter

8, 39

Return air temperature sensor

18

Rigging unit

4, 5

Roof curb

Assembly

1

Dimensions

3

Connector package

3

Leveling tolerances

4

Weight

7

Safety considerations

1

Safety relief

40

Service

42-48

Service ports

39

Slab mount

1

Start-up

39-42

Start-up checklist

CL-1

Supply air temperature sensor

17

Thermostat

9, 10

Troubleshooting

49-54

Ventilation

40

Weight

Corner

6

EconoMi$er IV

6, 7

Unit

5-7

Wiring

Humidistat

13

EconoMi$er IV

16

Perfect Humidity system

14

Power connections

10

Thermostat

10

Unit

52

— 55 —

SERVICE TRAINING

Packaged Service Training programs are an excellent way to increase your knowledge of the equipment discussed in this manual, including:

• Unit Familiarization

• Installation Overview

• Maintenance

• Operating Sequence

A large selection of product, theory, and skills programs are available, using popular video-based formats and materials. All include video and/or slides, plus companion book.

Classroom Service Training which includes “hands-on” experience with the products in our labs can mean increased confidence that really pays dividends in faster troubleshooting and fewer callbacks. Course descriptions and schedules are in our catalog.

CALL FOR FREE CATALOG 1-800-644-5544

[ ] Packaged Service Training [ ] Classroom Service Training

— 56 —

Copyright 2005 Bryant Heating & Cooling Systems Printed in U.S.A.

CATALOG NO. 04-53581003-01

START-UP CHECKLIST

(Remove and Store in Job File)

I. PRELIMINARY INFORMATION

MODEL NO.: _________________________________

DATE:________________________________________

SERIAL NO.:________________________________________

TECHNICIAN: ______________________________________

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

VERIFY THAT JOBSITE VOLTAGE AGREES WITH VOLTAGE LISTED ON RATING PLATE

VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT

REMOVE ALL SHIPPING HOLDDOWN BOLTS AND BRACKETS PER INSTALLATION INSTRUCTIONS

VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTALLATION INSTRUCTIONS

CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS

CHECK GAS PIPING FOR LEAKS

CHECK THAT RETURN (INDOOR) AIR FILTERS ARE CLEAN AND IN PLACE

VERIFY THAT UNIT INSTALLATION IS LEVEL

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

CHECK TO ENSURE THAT ELECTRICAL WIRING IS NOT IN CONTACT WITH REFRIGERANT LINES

OR SHARP METAL EDGES

CHECK PULLEY ALIGNMENT AND BELT TENSION PER INSTALLATION INSTRUCTIONS

III. START-UP

ELECTRICAL

SUPPLY VOLTAGE

COMPRESSOR AMPS

COMPRESSOR AMPS

INDOOR-FAN AMPS

L1-L2

L1

L1

L1

TEMPERATURES

OUTDOOR-AIR TEMPERATURE

RETURN-AIR TEMPERATURE

COOLING SUPPLY AIR

GAS HEAT SUPPLY AIR

PRESSURES

GAS INLET PRESSURE

GAS MANIFOLD PRESSURE

REFRIGERANT SUCTION

REFRIGERANT DISCHARGE

L2-L3

L2

L2

L2

IN. WG

IN. WG

PSIG

PSIG

DB

DB

DB

DB

L3-L1

L3

L3

L3

WB

CIRCUIT NO. 1 ____ PSIG




VERIFY REFRIGERANT CHARGE USING CHARGING TABLES

VERIFY THAT 3-PHASE SCROLL COMPRESSOR ROTATING IN CORRECT DIRECTION

Copyright 2005 Bryant Heating & Cooling Systems Printed in U.S.A.

CL-1

CATALOG NO. 04-53581003-01

installation, start-up and service instructions

installation, start-up and service instructions

581B

Dura Pac Plus Series

SINGLE PACKAGE ROOFTOP

GAS HEATING/ELECTRIC COOLING UNITS

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