Bryant 581C024-060, 581B036-072 User Manual

581B036--072 581C024--060

SINGLE--PACKAGE ROOFTOP HEA TING/COOL ING ST ANDARD AND LOW NOx UNITS

Installation Instructions

TABLE OF CONTENTS

Page

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

INSTALLATION 1..................................

Step 1--Provide Unit Support 2.......................

ROOF CURB 2................................

SLAB MOUNT 2..............................

ALTERNATE UNIT SUPPORT 2.................

Step 2--Field Fabricate Ductwork 2...................

Step 3--Install External Trap for Condensate Drain 2.......

Step 4--Rig and Place Unit 2.........................

POSITIONING 2..............................

Step5—InstallFlueHood 4........................

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

Step 7 — Make Electrical Connections 8................

FIELD POWER SUPPLY 8......................

FIELD CONTROL WIRING 8....................

HEAT ANTICIPATOR SETTINGS 8...............

Step 8 — Adjust Factory-Installed Options 16...........

PERFECT HUMIDITY ADAPTIVE

DEHUMIDIFICATION SYSTEM 16..............

MANUAL OUTDOOR-AIR DAMPER 16..........

CONVENIENCE OUTLET 16....................

OPTIONAL ECONOMI$ER IV 18................

ECONOMI$ER IV STANDARD SENSORS 19......

ECONOMI$ER IV CONTROL MODES 20.........

Step 9 — Adjust Evaporator-Fan Speed 25..............

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

START--UP 41.......................................

SERVICE 45........................................

TROUBLESHOOTING 55.............................

START--UP CHECKLIST 60...........................

SAFETY CONSIDERA T IONS

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.

Recognize safety information. This is the safety--alert symbol

. When you see this symbol on the unit and in instructions or

manuals, be alert to the potential for personal injury. Understand the signal words DANGER, WARNING, and

CAUTION. These words are used with the safety--alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies a hazard which could result in personal injury or death. CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could cause personal injury or death.

Before performing service or maintenance operations on unit, turn off main power switch to unit and install lockout tag. Ensure electrical service to rooftop unit agrees with voltage and amperage listed on the unit rating plate.

FIRE, EXPLOSION HAZARD

Failure to follow this warning could cause death and/or property damage.

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

than

/2psig, it must be replaced before use. When

pressure testing field-supplied gas piping at pressures of

/2psig or less, a unit connected to such piping must be

isolated by manually closing the gas valve(s).

WARNING

/2psig. Pressures greater than1/

INSTALLATION

Unit is shipped in the vertical discharge configuration. To convert to horizontal discharge application, remove duct opening covers. Using the same screws, install covers on duct openings in basepan of unit with insulation-side down. Seals around openings must be tight. (See Fig. 1.)

Fig. 1 --- Horizontal Conversion Panels

Step 1 —Provide Unit Support

581B,C

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. Ductwork must be attached to curb, not to the unit. If electric control power or gas service is to be routed through the basepan, attach the accessory thru-the-bottom service connections to the basepan in accordance with the accessory installation instructions. Connections must be installed before unit is set on roof curb.

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 result in air leaks and poor unit performance.

Curb should be level. Unit leveling tolerances are shown in Fig.

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

Slab Mount (Horizontal Units

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.

Alternate Unit

When the curb or adapter cannot be used, support unit with sleeper rails using unit curb or adapter 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.

Support

Only)

Step 2 —Field Fabricate Ductwork

Secure all ducts to roof curb and building structure on vertical discharge units. Do not connect ductwork to unit. For horizontal applications, field-supplied isolation flanges should be attached to horizontal discharge openings and all ductwork should be secured to the flanges. Insulate and weatherproof all external ductwork, joints, and roof openings with counter flashing and mastic in accordance with applicable codes.

Ducts passing through an unconditioned space must be 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.

C06108

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 return-air

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 setback 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.

Step 3 —Install External Trap for Condensate Drain

The unit’s3/4-in. condensate drain connections are located on the bottom and side of the unit. Unit discharge connections do not determine the use of drain connections; either drain connection can be used with vertical or horizontal applications.

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

To use the bottom drain connection for a roof curb installation, relocate the factory-installed plug (Red) from the bottom connection to the side connection. The center drain plug looks like a star connection, however it can be removed with a 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 4-in. deep and protect against freeze-up. 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 (

/4in.). (See Fig. 5.)

/2-in.

Step 4 —Rig and Place Unit

Inspect unit for transportation damage, and 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, and rollers may be used to move unit across a roof. Level by using unit frame as a reference. See Table 1 and 2 and Fig. 6 for additional information. Operating weight is shown in Table 1 and 2 and Fig. 6.

Lifting holes are provided in base rails as shown in Fig. 8 and 9. Refer to rigging instructions on unit.

PROPERTY DAMAGE HAZARD

Failure to follow this warning could result in personal injury, death and property damage.

All panels must be in place when rigging and lifting.

Positioning

Maintain clearance around and above unit to provide minimum distance from combustible materials, proper airflow, and service access. (See Fig. 7, 8 and 9.)

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

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

WARNING

/4in. clearance between the roof curb and the base

1-4 [406]

DALT

DRAIN

HOLE

13/4

[44.5]

GAS POWER CONTROL

/4

[19] NPT

/2

[12.7] NPT

/4

[19] NPT

CONNECTOR

PKG. ACCY.

CRBTMPWR001A01 CRBTMPWR002A01 1

CRBTMPWR003A01

1-9

[551]

/16

CRBTMPWR004A01

/4 [19] NPT

/4 [31.7]

/4 [19] NPT

/4 [31.7]

/2

[12.7]

ACCESSORY

POWER

/2

[12.7]

ROOF CURB

ACCESSORY

CRRFCURB001A01

CRRFCURB002A01

NOTES:

1. Roof curb accessory is shipped disassembled.

2. Insulated panels.

3. Dimensions in [ ] are in millimeters.

4. Roof curb: galvanized steel.

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

6. Service clearance: 4 ft on each side.

1-2 [356]

2-0 [610]

581B036-072 581C024-060

UNIT SIZE

7. Direction of airflow.

8. Connector packages CRBTMPWR001A01 and 002A01 are for thru-the-curb type gas. Packages CRBTMPWR003A01 and 004A01 are for thru-the-bottom type gas connections.

581B,C

Fig. 2 --- Roof Curb Details

C06345

MAXIMUM ALLOWABLE

DIFFERENCE (in.)

A-B B-C A-C

0.5 1.0 1.0

Fig. 3 --- Unit Leveling Tolerances

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

581B,C

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

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

Locate mechanical draft system flue assembly at least 48 in. from an adjacent building or combustible material. When unit is located adjacent to public walkways, flue assembly must be at least 7 ft above grade.

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

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

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

Step 5 —Install Flue Hood

Flue hood is shipped screwed to the burner compartment access panel. Remove from shipping location and, using screws provided, install flue hood in location shown in Fig. 8 and 9.

For units being installed in California Air Quality Management Districts which require NOx emissions of 40 nanograms/joule or less, a low NOx unit must be installed.

NOTE: Low NOx units are available for 2 to 5 ton units.

C06110

CONDENSATE PAN (SIDE VIEW)

HORIZONTAL DRAIN OUTLET

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

DRAIN PLUG

C06003

Fig. 4 --- Condensate Drain Pan

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

C06004

Fig. 5 --- Condensate Drain Piping Details

Step 6 —Install Gas Piping

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

For natural gas applications, gas pressure at unit gas connection must not be less than 4 in. wg or greater than 13 in. wg while the unit is operating. On 581B036 --072 and 581C036--060 high-heat units, the gas pressure at unit gas connection must not be less than 5 in. wg or greater than 13 in. wg while the unit is operating. For propane applications, the gas pressure must not be less than 5 in. wg or greater than 13 in. wg at the unit connection.

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

NOTES:

OPERATING

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

2. Dimensionin( )isinmillimeters.

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 Humidityt adaptive dehumidification system. See Table 1 for unit operating weights with th e Perfect Humidityt system.

C06111

Fig. 6 --- Rigging Details

UNIT

581C

024 036 540 245 73.69 1872 35.50 902 33.31 847 048 560 254 73.69 1872 35.50 902 33.31 847 060 635 288 73.69 1872 35.50 902 41.31 1050

UNIT 581

036 530 240 73.69 1872 35.50 902 33.31 847 048 540 245 73.69 1872 35.50 902 33.31 847 060 560 254 73.69 1872 35.50 902 33.31 847 072 635 288 73.69 1872 35.50 902 41.31 1050

OPERATING

WEIGHT

lb kg in. mm in. mm in. mm

530 240

OPERATING

WEIGHT

lb kg in. mm in. mm in. mm

“A” “B” “C”

73.69 1872 35.50 902 33.31 847

“A” “B” “C”

DIMENSIONS

581B,C

C06208

Fig. 7 --- Roof Curb Alignment

Support gas piping as shown in the table in Fig. 11. For example,

/4-in. gas pipe must have one field-fabricated support beam

a every 8 ft. Therefore, an 18-ft long gas pipe would have a minimum of 3 support beams, and a 48-ft long pipe would have a minimum of 6 support beams.

WARNING

PROPERTY DAMAGE HAZARD

Failure to follow this warning could result in personal injury, death and property damage.

All panels must be in place when rigging and lifting.

See Fig. 11 for typical pipe guide and locations of external manual gas shutoff valve.

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

WARNING

FIRE, EXPLOSION HAZARD

Failure to follow this warning could result in personal injury, death and/or property damage.

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

581B,C

C06363

COMPRESSOR

ACCESS PANEL

CONTROL BOX

Fig. 8 --- 581B 036 --072 Base Unit Dimensions

C06364

581B,C

COMPRESSOR

ACCESS PANEL

Fig. 9 --- 581C 024 --060 Base Unit Dimensions

Fig. 10 --- Flue Hood Details

581B,C

LEGEND

NFGC — National Fuel Gas Code

Field supplied.

NOTE: Follow all local codes.

SPACING OF SUPPORTS

STEEL PIPE

NOMINAL DIAMETER (in.)

/4or 1

/4or larger

Fig. 11 --- Gas Piping Guide (With Accessory

Thru--the--Curb Service Connections)

Step 7 —Make Electrical Connections

ELECTRICAL SHOCK HAZARD

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

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.

WARNING

SPACING OF SUPPORTS

X DIMENSION (ft)

6 8

C06114

C06115

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 terminal on the transformer and connecting it to the 200-v terminal from the transformer.

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

When installing units, provide a disconnect per NEC. All field wiring must comply with NEC and local

requirements. Install conduit through side panel openings indicated in Fig. 8.

Route power lines through connector to terminal connections as shown in Fig. 12.

Voltage to compressor terminals during operation must be within voltage range indicated on unit nameplate (also see Tables 3 and

4). On 3-phase units, voltages between phases must be balanced within 2% and the current within 10%. Use the formula shown in Tables 3 and 4, Note 3 to determine the percent voltage imbalance. Operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause damage to electrical components. Such operation would invalidate any applicable Bryant warranty.

Field Control W

iring

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 subbase terminals through connector on unit to low-voltage connections (shown in Fig. 13 and 14).

Connect thermostat wires to matching screw terminals of low-voltage connection board. (See Fig. 13 and 14.)

NOTE: For wire runs up to 50 ft, use no. 18 AWG (American Wire Gauge) insulated wire (35_Cminimum).For50to75ft,use no. 16 AWG insulated wire (35_C minimum). For over 75 ft, use no. 14 AWG insulated wire (35_C minimum). All wire larger than no. 18 AWG cannot be directly connected to the thermostat and will require a junction box and splice at the thermostat.

Pass the control wires through the hole provided in the corner post; then feed wires through the raceway built into the corner post to the 24-v barrier located on the left side of the control box. (See Fig. 15). The raceway provides the UL required clearance between high and low-voltage wiring.

Heat Anticipator

Settings

Set heat anticipator settings at 0.14 amp for first stage and 0.14 for second stage heating, when available.

Table 1—Physical Data 581B

/B(

)

MotorPulleyPitchDiameterA/B(i

n.)

SpeedChangeperFullTurno

MovablePulleyMaximumFul

BASE UNIT 581B 036 048 060 072 NOMINAL CAPACITY (tons) OPERATING WEIGHT (lb)

Unit Perfect Humidity Adaptive Dehumidification System EconoMi$er IV Roof Curb

COMPRESSOR

Quantity Oil (oz)

REFRIGERANT TYPE

Expansion Device Operating Charge (lb-oz)

Standard Unit Unit With Perfect Humidity Adaptive Dehumidification System

CONDENSER FAN

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

CONDENSER COIL

Rows...Fins/in. Tot a l F ace A r ea (sq f t )

EVAPORATOR COIL

Standard Unit

Rows...Fins/in. Tot a l F ace A r ea (sq f t )

Unit with Perfect Humidity Adaptive Dehumidification System

Rows...Fins/in. Tot a l F ace A r ea (sq f t )

EVAPORATOR FAN

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

Hi-Static

Motor RPM Std

Hi-Static

Motor Frame Size Std

Hi-Static

Fan Rpm Range Std

Hi-Static

Motor Bearing Type Maximum Fan Rpm Motor PulleyPitch Diameter

in.

Hi-Static

Nominal Motor Shaft Diameter (in.) Std

Hi-Static

Fan Pulley Pitch Diameter (in.) Std

Hi-Static

Belt — Type...Length (in.) Std

Hi-Static

Pulley Center Line Distance (in.) Speed Changeper Full Turn o

Movable Pulley Flange (rpm)

Movable PulleyMaximum Full

Turns from Closed Position

Hi-Static

Factory Setting — Full Turns Open Std

Hi-Static

Factory Speed Setting (rpm) Std

Hi-Static

Fan Shaft Diameter at Pulley (in.)

LEGEND

Bhp — Brake Horsepower

Std

3 4 5 6

530 540 560 635

15 23 25 29 50 50 50 50

115 115 115 115

Scroll

1 1 1 1

42 53 50 60

R-22

Acutrol Metering Device

5-8 10-2 10-0 12- 8

12-5 18-8 20-5 23-14

Propeller

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

/4...825

/4...1100

180 180 320 320

3/8---in. OD Enhanced Copper Tubes, Aluminum Lanced Fins

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

14.6 16.5 16.5 21.3 3/8---in. OD Enhanced Copper Tubes, Aluminum Double-Wavy Fins

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

5.5 5.5 5.5 7.3

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

3.9 3.9 3.9 5.2 Centrifugal Type, Belt Drive

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

1.20

2.40 1620 1725

48 56

680-1044

1075-1455

1.20 1.30/2.40* 2.40

2.40 2.90 2.90 1620 1725 1725 1725 1725 1725

48 48/56* 56 56 56 56

770-1185 1035-1460 1119-1585

1075-1455 1300-1685 1300-1685

Ball Ball Ball Ball

2100 2100 2100 2100

1.9/2.9

2.8/3.8

4.5

1...A...36

1...A...39

1.9/2.0 2.4/3.4 2.4/3.4

2.8/3.8 3.4/4.4 3.4/3.4

4.0 4.0 4.0

5 7

4.0 4.5 4.5

1...A...36 1....4...40 1...A...38

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

10.0-12.4 10.0-12.4 14.7-15.5 14.7-15.5 65 65

5 6 3

826

1233

70 75 95 65 60 60

5 6 5 6 5 5 3 3 3

31/

936 1248 1305

1233 1396 1396

31/

581B,C

Table 1 — Physical Data 581B (cont)

UNIT SIZE 581B 036 048 060 072 FURNACE SECTION

Rollout Switch Cutout Temp (F)† 195 195 195 195

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

Natural Gas —Std 071/072 .113...33 .113...33 .113...33 .113...33

Propane —Alt†† 071/072 .089...43 .089...43 .089...43 .089...43

Thermostat Heat Anticipator Setting (amps) 208/230/460 v First Stage .14 .14 .14 .14 Second Stage .14 .14 .14 .14 Gas Input (Btuh) First Stage/Second Stage (3---phase units) 072 50,000/ 72,000 50,000/ 72,000 50,000/ 72,000 50,000/ 72,000

581B,C

Efficiency (Steady State) (%) 072 82 82 82 82

TemperatureRiseRange 072 15---45 15---45 15---45 15 --- 45

Manifold Pressure (in. wg) Natural Gas —Std 3.5 3.5 3.5 3.5 Propane —Alt†† 3.5 3.5 3.5 3.5 Maximum Static Pressure (in. wg) 1.0 1.0 1.0 1.0 Field Gas Connection Size (in.) 1/2 1/2 1/2 1/2

HIGH-PRESSURE SWITCH (psig)

Standard Compressor Internal Relief Cutout Reset (Auto.)

LOSS-OF-CHARGE SWITCH/LOW-PRESSURE (Liquid Line) (psig)

Cutout Reset (Auto.)

FREEZE PROTECTION THERMOSTAT

Opens (F) Closes (F)

OUTDOOR-AIR INLET SCREENS RETURN-AIR FILTERS

Quantity...Size (in.)

114/115 .113...33 .113...33 .113...33 .113...33 149/150 — .129...30 .129...30 .129...30

060N .102...38 .102...38 .102...38 — 090N .102...38 .102...38 .102...38 — 120N — .116...32 .116...32 —

114115 .089...43 .089...43 .089...43 .089...43

149/150 — .102...38 .102...38 .104...39

060N .082...45 .082...45 .082...45 — 090N .082...45 .082...45 .082...45 — 120N — .094...42 .094...42 —

115 82,000/115,000 82,000/115,000 82,000/115,000 82,000/115,000

150 — 120,000/150,000 120,000/150,000 120,000/150,000 071II —/72,000 —/72,000 —/72,000 — 114II —/115,000 —/115,000 —/115,000 — 149II — —/150,000 —/150,000 —

060N*** —/ 60,000 —/60,000 —/60,000 — 090N*** —/ 90,000 —/90,000 —/90,000 — 120N*** — —/120,000 —/120,000 —

115 80 81 81 81

150 — 80 80 80

071 82 82 82 —

114 80 81 81 —

149 — 80 80 —

060N 80 80 80 — 090N 80 80 80 — 120N — 80 80 —

115 55 ---85 35---65 35 ---65 35 --- 65

150 — 50 ---80 50---80 50 --- 80

071 15 ---45 15---45 15 ---45 —

114 55 ---85 35---65 35 ---65 —

149 — 50 ---80 50---80 —

060N 20 ---50 20---50 20 ---50 — 090N 30 ---60 30---60 30 ---60 — 120N — 40 ---70 40---70 —

450  50

428 320

7  3

22  5

30  5 45  5

Cleanable. Screen quantity and size varies with option selected.

2...16 x 25 x 2 4...16 x 16 x 2

Throwaway

LEGEND

Bhp — Brake Horsepower

**60,000 and 72,000 Btuh heat input units have 2 burners. 90,000 and 120,000 Btuh

heat input units have 3 burners. 115,000 Btuh heat input units and 150,000 Btuh Heat input units have 3 burners.

††A propane kit is available as an accessory. Kit may be used at elevations as high as

2000 ft. If a propane kit is used with Low NOx units, the Low NOx baffle must be removed a nd the units will no longer be classified as Lo w NOx units. ll Three-phase standard models have heating inputs as shown. Single-phase standard models have one-stage heating wi th heating input val ues.

***California compliant three-phase models.

†††California SCAQMD compliant low NO

controlled to 40 nanograms per joule or less.

models have combustion products that are

Table 2—Physical Data 581C

/B(

)

MotorPulleyPitchDiameterA/B(i

n.)

SpeedChangeperFullTurno

MovablePulleyMaximumFul

BASE UNIT 581C 024 036 048 072 NOMINAL CAPACITY (tons) OPERATING WEIGHT (lb)

Unit Perfect Humidity Adaptive Dehumidification System EconoMi$er IV Roof Curb

COMPRESSOR

Quantity Oil (oz)

REFRIGERANT TYPE

Expansion Device Operating Charge (lb-oz)

Standard Unit Unit With Perfect Humidity Adaptive Dehumidification System

CONDENSER FAN

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

CONDENSER COIL

Rows...Fins/in. Tot a l F ace A r ea (sq f t )

EVAPORATOR COIL

Standard Unit

Rows...Fins/in. Tot a l F ace A r ea (sq f t )

Unit with Perfect Humidity Adaptive Dehumidification System

Rows...Fins/in. Tot a l F ace A r ea (sq f t )

EVAPORATOR FAN

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

Hi-Static

Motor Frame Size Std

Hi-Static

Motor Rpm Fan Rpm Range Std

Hi-Static

Motor Bearing Type Maximum Fan Rpm Motor PulleyPitch Diameter

in.

Hi-Static

Nominal Motor Shaft Diameter (in.) Std

Hi-Static

Fan Pulley Pitch Diameter (in.) Std

Hi-Static

Belt — Type...Length (in.) Std

Hi-Static

Pulley Center Line Distance (in.) Speed Changeper Full Turn o

Movable Pulley Flange (rpm)

Movable PulleyMaximum Full

Turns from Closed Position

Hi-Static

Factory Setting — Full Turns Open Std

Hi-Static

Factory Speed Setting (rpm) Std

Hi-Static

Fan Shaft Diameter at Pulley (in.)

Std

2 3 4 5

530 540 560 635

13 15 23 25 50 50 50 50

115 115 115 115

Scroll

1 1 1 1

25 42 56 53

R-22

Acutrol Metering Device

5 --- 3 7 --- 1 1 8 --- 8 12---11

1 0 --- 2 14 --- 0 14--- 13 21 --- 0

Propeller

1...22 1...22 1...22 1...22 3000 3500 3500 4100

/8...825

/4...1100

180 180 180 320

3/8---in. OD Enhanced Copper Tubes, Aluminum Lanced Fins

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

14.6 14.6 16.5 16.5 3/8---in. OD Enhanced Copper Tubes, Aluminum Double-Wavy Fins

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

4.2 5.5 5.5 5.5

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

3.5 3.9 3.9 3.9 Centrifugal Type, Belt Drive

1...10 x 10 1...10 x 10 1...10 x 10 1...10 x 10 800 1200 1600 2000

0.58

1.20 1.20 1.30/2.40*

2.40 2.40 2.90

48 48 48/56* 56 56 56

1620 1620 1620 1725

400-1000

680-1044 770-1185 1035-1460

1075-1455 1075-1455 1300-1685

Ball Ball Ball Ball

1620 2100 2100 2100

2.4/3.2

4.0

4.5

1...A...36

1.9/2.9 1.9/2.0 2.4/3.4

2.8/3.8 2.8/3.8 3.4/4.4

4.5 4.0 4.0

5 5

4.5 4.0 4.5

1...A...36 1...A...36 1....4...40

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

10.0---12.4 10.0-12.4 10.0-12.4 14.7-15.5

65 70 75 65 65 60

5 5 6 6 6 5 3 3 3

31/

826 936 1248

1233 1233 1396

31/

756

581B,C

Table 2 — Physical Data 581C (cont)

UNIT SIZE 581C 024 036 048 060 FURNACE SECTION

Rollout Switch Cutout Temp (F)† 195 195 195 195

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

Natural Gas —Std 071/072 .113...33 .113...33 .113...33 .113...33

Propane —Alt†† 071/072 .089...43 .089...43 .089...43 .089...43

581B,C

Efficiency (Steady State) (%) 072 82 82 82 82

TemperatureRiseRange 072 15---45 15---45 15---45 15 --- 45

Manifold Pressure (in. wg) Natural Gas —Std 3.5 3.5 3.5 3.5 Propane —Alt†† 3.5 3.5 3.5 3.5 Maximum Static Pressure (in. wg) 1.0 1.0 1.0 1.0 Field Gas Connection Size (in.) 1/2 1/2 1/2 1/2

HIGH-PRESSURE SWITCH (psig)

Standard Compressor Internal Relief Cutout Reset (Auto.)

LOSS-OF-CHARGE SWITCH/LOW-PRESSURE (Liquid Line) (psig)

Cutout Reset (Auto.)

FREEZE PROTECTION THERMOSTAT

Opens (F) Closes (F)

OUTDOOR-AIR INLET SCREENS RETURN-AIR FILTERS

Quantity...Size (in.)

114/115 .113...33 .113...33 .113...33 .113...33 149/150 — .129...30 .129...30 .129...30

060N .102...38 .102...38 .102...38 — 090N .102...38 .102...38 .102...38 — 120N — .116...32 .116...32 —

114115 .089...43 .089...43 .089...43 .089...43

149/150 — .102...38 .102...38 .104...39

060N .082...45 .082...45 .082...45 — 090N .082...45 .082...45 .082...45 — 120N — .094...42 .094...42 —

115 82,000/115,000 82,000/115,000 82,000/115,000 82,000/115,000

150 — 120,000/150,000 120,000/150,000 120,000/150,000 071II —/72,000 —/72,000 —/72,000 — 114II —/115,000 —/115,000 —/115,000 — 149II — —/150,000 —/150,000 —

060N*** —/ 60,000 —/60,000 —/60,000 — 090N*** —/ 90,000 —/90,000 —/90,000 — 120N*** — —/120,000 —/120,000 —

115 80 81 81 81

150 — 80 80 80

071 82 82 82 —

114 80 81 81 —

149 — 80 80 —

060N 80 80 80 — 090N 80 80 80 — 120N — 80 80 —

115 55 ---85 35---65 35 ---65 35 --- 65

150 — 50 ---80 50---80 50 --- 80

071 15 ---45 15---45 15 ---45 —

114 55 ---85 35---65 35 ---65 —

149 — 50 ---80 50---80 —

060N 20 ---50 20---50 20 ---50 — 090N 30 ---60 30---60 30 ---60 — 120N — 40 ---70 40---70 —

450  50

428 320

7  3

22  5

30  5 45  5

Cleanable. Screen quantity and size varies with option selected.

2...16 x 25 x 2 4...16 x 16 x 2

Throwaway

LEGEND

Bhp — Brake Horsepower

**60,000 and 72,000 Btuh heat input units have 2 burners. 90,000 and 120,000 Btuh

heat input units have 3 burners. 115,000 Btuh heat input units and 150,000 Btuh Heat input units have 3 burners.

††A propane kit is available as an accessory. Kit may be used at elevations as high as

2000 ft. If a propane kit is used with Low NOx units, the Low NOx baffle must be

removed a nd the units will no longer be classified as Lo w NOx units. ll Three-phase standard models have heating inputs as shown. Single-phase standard models have one-stage heating wi th heating input values.

***California compliant three-phase models.

†††California SCAQMD compliant low NO

controlled to 40 nanograms per joule or less.

models have combustion products that are

BLK

TO COMP

BLK

TO COMP

11 23

2321

208/230-1-60

(SIZES 581B036-060,

581C024-060)

11 23

2321

208/230-3-60

460-3-60

(SIZES 581B060, 072,

581C0060)

YEL

FIELD POWER SUPPLY

DISCONNECT

PER NEC

BLK

YEL

BLU

FIELD POWER SUPPLY

DISCONNECT

PER NEC

EQUIP

GND

TO COMP

IFC

11 23

YEL BLU

2321

208/230-3-60

480-3-60

(SIZES 581B036,048

581C036,048)

FIELD POWER SUPPLY

DISCONNECT

PER NEC

BLK

11 13

YEL BLU

2321

FIELD POWER SUPPLY

575-3-60

(SIZES 581B060, 072)

DISCONNECT

PER NEC

Fig. 12 --- Power Wiring Connections

(SIZES 581B036,048

581C036,048)

TO TB2

11 23

575-3-60

YEL

2321

FIELD POWER SUPPLY

DISCONNECT

PER NEC

BLU

581B,C

C06346

IPD/X

WIRE CONNECTIONS TO LOW-VOLTAGE SECTION

COOL STAGE 1

FAN

HEAT STAGE 1

COOL STAGE 2

HEAT STAGE 2

24 VAC HOT

24 VAC COM

N/A

OUTDOOR AIR

SENSOR

THERMOSTAT DIPSWITCH SETTINGS

ON OFF

LEGEND

NOTE: Un derlined letter indicates ac tive therm ostat output wh en configured for A/C operation.

Y1/W2

W/W1

Y/Y2

O/W2

Field Wiring

Fig. 13 --- Low --Voltage Connections With or

Without Economizer or Two--Position Damper

C06008

LOW VOLTAGE CONNECTIONS

INTEGRATED GAS UNIT CONTROLLER (IGC)

Fig. 14 --- Field Control Wiring

C06125

IFM

208

/23

TD1

72541109631070620

024

208

/23

TD1

110.96310.70.6

2.0

208

/23

--1--

-60

TD1

725411688107064

208

/23

--3--

-60

725411037710706

---3-

--6

4508151391040

036

(3ton

)

104

---3-

--60HS5

863214231

03†20

104†26†

erfec

208

/23

--1--

-60

TD1

72541211151150649

208

/23

--3--

-60

725411419511506

---3-

--6

4508171451080

048

(4ton

)

106

---3-

--60HS5

863216138

03†20

108†26†

erfec

208

/23

--1--

-60

TD1

72541251501150666

208

/23

--3--

-60

725411731231150

---3-

--6

45081847010803†

060

(5ton

)

106

---3-

--60HS5

863217153

03†28

119†34†

erfec

581B,C

MINIMUM UNIT

DISCONNECT SIZE

POWER SUPPLY *

CONV

OUTLET

IFM

FAN MOTOR

COMBUSTION

FLA

FLA LRA

MOCP**

MCA

NO 16.3 20 15.6 69

NO 25.6 30 24.8 101

NO 18.5 25 18.3 90

NO 19.4 25 19.3 120

NO 9.0 15 8.9 46

NO 9.4 15 9.3 60

NO 7.6 10 7.5 36

NO 7.7 10 7.6 43

NO 7.7 10 8.0 48

NO 32.7 40 31.5 130

NO 24.0 30 23.6 110

NO 24.9 30 24.6 140

NO 11.9 15 11.6 53

NO 12.3 15 12.1 67

NO 10.1 15 9.9 44

NO 10.2 15 10.0 51

NO 10.3 15 10.1 56

NO 39.4 50 38.1 187

NO 28.9 35 28.3 168

NO 30.6 35 30.2 187

NO 13.9 20 13.6 92

NO 14.7 20 14.5 102

NO 11.5 15 11.2 66

NO 12.3 15 12.1 75

YES 22.3 25 21.2 73

YES 31.6 35 30.4 106

YES 24.5 30 23.8 95

YES 25.4 30 24.9 124

YES 11.7 15 11.4 48

YES 12.1 15 11.8 63

YES 9.7 15 9.5 38

YES 9.8 15 9.6 44

YES 9.8 15 9.6 50

YES 38.7 45 37.0 135

YES 30.0 35 29.1 115

YES 30.9 35 30.1 145

YES 14.6 20 14.1 55

YES 15.0 20 14.6 70

YES 12.3 15 11.9 46

YES 12.4 15 12.0 52

YES 12.5 15 12.1 58

YES 45.4 60 43.6 191

YES 34.9 40 33.8 173

YES 36.6 40 35.8 192

YES 16.6 20 16.1 95

YES 17.4 20 17.0 104

4.9

2.2

1.9

1 0.4

4.9

2.2

1.9

1 0.4† 2.6†

1 0.6

5.8

2.6

1 0.8† 2.6†

NO 12.2 15 12.0 79

YES 13.6 15 13.2 67

YES 14.4 20 14.1 76

YES 14.4 20 14.0 80

2.0

1 0.6

1 1.9† 3.4†

Table 3—Electrical Data 581C

VOLTAGE

COMPRESSOR OFM

RANGE

581C024--- 060

NOMINAL

IFM TYPE Min Max QTY RLA LRA QTY FLA FLA

V --- P H --- H z

UNIT SIZE

024

---

(2 tons)

2 3 0 --- 1 --- 6 0 STD 187 254 1 16 88 1 0.7 0.6 4.9

208

STD

187 254 1 10.3 77 1 0.7 0.6

2 3 0 --- 3 --- 6 0

208

414 508 1 5.1 39 1 0.4 0.3

HS 5.8

HS 2.6

STD

Perfect

Humidity

036

4 6 0 --- 3 --- 6 0

(3 tons)

5 7 5 --- 3 --- 6 0 HS 518 632 1 4.2 31 0.3† 2.0

2 3 0 --- 1 --- 6 0 STD 197 254 1 21 115 1 1.5 0.6 4.9

208

STD

187 254 1 14.1 95 1 1.5 0.6

2 3 0 --- 3 --- 6 0

208

414 508 1 7.1 45 1 0.8 0.3

HS 5.8

HS 2.6

STD

Perfect

Humidity

048

4 6 0 --- 3 --- 6 0

(4 tons)

5 7 5 --- 3 --- 6 0 HS 518 632 1 6.1 38 0.3† 2.0

2 3 0 --- 1 --- 6 0 STD 187 254 1 25 150 1 1.5 0.6 6.6

208

STD

187 254 1 17.3 123 1 1.5 0.6

2 3 0 --- 3 --- 6 0

208

414 508 1 8.4 70 1 0.8 0.3†

HS 7.5

HS 3.4

STD

Perfect

Humidity

060

4 6 0 --- 3 --- 6 0

(5 tons)

5 7 5 --- 3 --- 6 0 HS 518 632 1 7.1 53 0.3† 2.8

HACR --- Heating, Air Conditioning and Refrigeration

IFM --- Indoor (Evaporator) Fan Motor

LRA --- Locked Rotor Amps

MCA --- Minimum Circuit Amps

MOCP --- Maximum Overcurrent Protection

NEC --- National Electrical Code

OFM --- Outdoor (Condenser) Fan Motor

RLA --- Rated Load Amps

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

** Fuse or HACR breaker

FLA --- Full Load Amps

{ 460v motor

NOTES:

MINIMUM UNI

208/2

---1---

725

16881070649

D49

208

/23

-36

725

103771070

D22

036(3

Ton

s)4

--3---6

450

513910403

D19

10403

†

--3---6

S51

863

423

104†09†26

†

erfec

208/2

---1---

725

2371261070649

D49

208/2

---3---

725

135931070

D22

048(4

Ton

s)4

--3---6

450

644651040

D19

10403

†

--3---6

S51

863

644

10409

†26

†

erfec

208/2

---1---

725

2881691150666

D58

208/2

---3---

725

17312311506

D26

060(5

Ton

s)4

--3---6

450

9621080

D20

0603†

S51

863

71501

08†03

†34

†

erfec

TD0

658

208/2

---3---

725

205156114

675

TD0

326

--3---6

450

9675106

072(6

Ton

)

334

D20

0803†

--3---6

S51

863

77561

06†03

†34

†

erfec

DISCONNECT SIZE

POWER SUPPLY *

CONV

OUTLET

FLA

IFM

FAN MOTOR

COMBUSTION

FLA LRA

MOCP**

NO 25.6 30 25 101

YES 31.6 35 30 106

NO 18.5 25 18 90

NO 19.4 25 19 120

NO 9.0 15 9 46

NO 9.4 15 9 60

NO 7.6 10 7 36

NO 7.7 10 8 43

NO 8.3 10 8 52

NO 35.2 45 34 139

NO 22.5 30 22 106

NO 23.4 30 23 136

NO 10.6 15 10 54

NO 11.0 15 11 68

NO 10.3 15 10 45

NO 10.4 15 10 52

NO 11.0 15 11 61

NO 44.1 60 42 206

NO 28.9 35 28 168

NO 30.6 35 30 187

NO 14.7 20 14 84

NO 15.5 20 15 94

NO 11.5 15 11 63

NO 12.3 15 12 72

NO 12.2 15 12 76

NO 32.8 40 32 200

NO 34.5 40 34 219

NO 15.2 20 15 97

NO 16.0 20 16 107

NO 12.4 15 12 69

NO 13.2 20 13 79

YES 24.5 30 24 95

YES 25.4 30 25 124

YES 11.7 15 11 48

YES 12.1 15 12 63

YES 9.7 15 9 38

YES 9.8 15 10 44

YES 10.4 15 10 54

YES 41.2 50 39 144

YES 28.5 35 27 111

YES 29.4 35 29 140

YES 13.3 15 13 56

YES 13.7 15 13 70

YES 12.5 15 12 47

YES 12.6 15 12 53

YES 13.2 15 13 63

YES 50.1 60 48 210

YES 34.9 40 34 173

YES 36.6 40 36 192

YES 17.4 20 17 87

YES 18.2 20 18 96

YES 13.6 15 13 64

YES 14.4 20 14 73

YES 14.4 20 14 77

YES 38.8 45 37 205

YES 40.5 45 39 224

YES 17.9 20 17 99

YES 18.7 25 18 109

4.9

2.2

1.9

4.9

2.2

1.9

5.8

2.6

2.0

0.6 5.8

0.3 2.6

NO 12.8 15 13 81

YES 14.6 20 14 70

YES 15.4 20 15 80

YES 15.0 20 15 83

2.0

581B,C

Table 4—Electrical Data 581B

VOLTAGE

COMPRESSOR (each) OFM (each)

RANGE

IFM TYPE Min Max QTY RLA LRA QTY FLA FLA MCA

STD

0.6 0.3†

0.8† 0.3† 3.4†

1 0.4 0.3†

1 0.4† 0.9† 2.6†

187 254 1 10.3 77 1 0.7 0.6

414 508 1 5.1 39 1 0.4 0.3

HS 5.2

HS 2.6

STD

Perfect

Humidity

STD

187 254 1 13.5 93 1 0.7 0.6

HS 5.8

STD

1 0.4 0.3†

1 0.4 0.9† 2.6†

414 508 1 6.4 46.5 1 0.4 0.3

HS 2.6

STD

Perfect

Humidity

STD

187 254 1 17.3 123 1 1.5 0.6

414 508 1 9 62 1 0.8 0.3

HS 7.5

HS 3.4

STD

HS 518 632 1 7.1 50 1 2.8

STD

187 254 1 20.5 156 1 1.4

HS 0.6 7.5

STD

Perfect

Humidity

STD

0.8 0.3†

0.6† 0.3† 3.4†

414 508 1 9.6 75 1 0.6

STD

Perfect

Humidity

581B036---072

NOMINAL

V --- P H --- H z

UNIT SIZE

2 3 0 --- 1 --- 6 0 STD 187 254 1 16 88 1 0.7 0.6 4.9

208

036 (3 Tons) 46 0 --- 3 --- 6 0

2 3 0 --- 1 --- 6 0 STD 187 254 1 23.7 126 1 0.7 0.6 4.9

208

2 3 0 --- 3 --- 6 0

208

048 (4 Tons) 46 0 --- 3 --- 6 0

5 7 5 --- 3 --- 6 0 HS 518 632 1 4.2 31 2.0

2 3 0 --- 1 --- 6 0 STD 187 254 1 28.8 169 1 1.5 0.6 6.6

208

2 3 0 --- 3 --- 6 0

208

5 7 5 --- 3 --- 6 0

060 (5 Tons) 46 0 --- 3 --- 6 0

5 7 5 --- 3 --- 6 0 HS 518 632 1 6.4 40 2.0

2 3 0 --- 3 --- 6 0

208

4 6 0 --- 3 --- 6 0

5 7 5 --- 3 --- 6 0 HS 518 632 1 7.7 56 1 2.8

072 (6 Tons) HS 0.3 3.4

230--- 3 60

Step 8 —Adjust Factory--Installed Options

Perfect Humidity Adaptive Dehumidification System

Perfect Humidity system operation can be controlled by field installation of a Bryant--approved humidistat. (See Fig. 15.)

NOTE: A light commercial Thermidistat device (Fig. 16) can be used instead of the humidistat if desired. The Thermidistat device includes a thermostat and a humidistat. The humidistat is normally used in applications where a temperature sensor is already provided.

581B,C

% RELATIVE HUMIDITY

Fig. 15 --- Accessory Field--Installed Humidistat

Fig. 16 --- Light Commercial Thermidistat Device

To install the humidistat:

1. Route humidistat cable through hole provided in unit control box.

2. Some models may be equipped with a raceway built into the corner post located on the left side of control box (See Fig. 14). This raceway provides the required clearance between high--voltage and low voltage wiring. For models without a raceway, ensure to provide the NEC required clearance between the high--voltage and low-- voltage wiring.

3. Use a wire nut to connect humidistat cable into lowvoltage wiring as shown in Fig. 17.

C06358

C06359

To install Thermidistat device:

1. Route Thermidistat cable through hole provided in unit control box.

3. A field-supplied relay must be installed between the Thermidistat and the Humidi-Mizer circuit (recommended relay: HN61KK324). (See Fig. 18.) The relay coil is connected between the DEHUM output and C (common) of the unit. The relay controls thePerfect 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.

Manual Outdoor

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 and save outdoor air opening panel and screws. (See Fig. 19.)

3. Remove evaporator coil access panel. Separate hood and screen from basepan by removing the 4 screws securing them. Save all screws.

4. Replace evaporator coil access panel.

5. Place hood on front of outdoor air opening panel. See Fig. 20 for hood details. Secure top of hood with the

4screwsremovedinStep3.(SeeFig.21.)

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. 28 and 21.) 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. 19.) Slide blade vertically until it is in the appropriate position determined by Fig. 22. Tighten screws.

9. Remove and save screws currently on sides of hood. Insert screen. Secure screen to hood using the screws. (See Fig. 21.)

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.

CB — Circuit Breaker CR — Cooling Relay DHR — Dehumidify Relay DSV — Discharge Solenoid Valve HR — Heater Relay LPS — Low Pressure Switch LSV — Liquid Solenoid Valve LT LO — Low Temperature Lockout

Field Splice

Fig. 17 --- Typical Perfect Humidityt Adaptive Dehumidification System

LEGEND

Terminal (Unmarked)

Splice

Factory Wiring

Field Control Wiring

Field Power Wiring

Humidistat Wiring (208/230--V Unit Shown)

C06128

581B,C

LCT

C Y1 Y2

G W1 W2

DEHUM

TSTAT WIRES

LEGEND

CB — Circuit Breaker LCT — Light Commercial Thermidistat™ Device LLSV — Liquid Line Solenoid Valve LT LO — Low Temperature Lockout

Fig. 18 --- Typical Rooftop Unit with Perfect Humidity

Adaptive Dehumidification System with Thermidistat Device

OUTDOOR AIR OPENING PANEL

3 SCREWS (SIDE)

ROOF TOP UNIT

C Y1 Y2

W1 W2

PINK

3.2 AMPS

LTL O

PERFECT HUMIDITY SYSTEM

RED

24 V

PINK

FROM PERFECT HUMIDITY SYSTEM LLSV

C06360

Fig. 19 --- Damper Panel with Manual Outdoor--Air

Damper Installed

C06130

C06013

Fig. 20 --- Outdoor-- Air Hood Details

581B,C

Fig. 21 --- Outdoor-- Air Damper With

Hood Attached

Fig. 22 --- Outdoor-- Air Damper Position Setting

ECONOMI$ER IV CONTROLLER

WIRING HARNESS

CTUATOR

OUTSIDE AIR TEMPERATURE SENSOR

LOW AMBIENT SENSOR

C06131

C06132

Optional Economi$er

See Fig. 23 for EconoMi$er IV component locations. NOTE: These instructions are for installing the optional

EconoMi$er IV. Refer to the accessory EconoMi$er IV 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. 24.)

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. 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. 25.)

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.

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. 26.)

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. 27.)

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

6. Insert the hood divider between the hood sides. (See Fig. 28 and 29.) 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. 28.)

8. Caulk the ends of the joint between the unit top panel and the hood top. (See Fig. 26.)

9. Replace the filter access panel.

10. Install all EconoMi$er IV accessories. EconoMi$er IV wiring is shown in Fig. 29.

Barometric flow capacity is shown in Fig. 30. Outdoor air leakage is shown in Fig. 33. Return air pressure drop is shown in Fig. 32.

FILTER ACCESS PANEL

C06021

Fig. 23 --- EconoMi$er IV Component Locations

COMPRESSOR ACCESS PANEL

OUTDOOR-AIR OPENING AND INDOOR COIL ACCESS PANEL

Fig. 24 --- Typical Access Panel Locations

C06023

+ 42 hidden pages

Bryant 581C024-060, 581B036-072 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SAFETY CONSIDERA T IONS

INSTALLATION