Bryant 582A024040, 582A036060, 582A024060, 582A036090, 582A042060 Installation, Start-up And Service Instructions Manual

...
Page 1
CONTENTS
Page
SAFETY CONSIDERATIONS ........................1
GENERAL ......................................1-3
RECEIVING AND INSTALLATION .................4-14
I. Step 1 — Check Equipment ..................4
II. Step 2 — Provide Unit Support ...............4
III. Step 3 — Field Fabricate Ductwork ............4
V. Step 5 — Rig and Place Unit .................4
VI. Step 6 — Connect Condensate Drain ..........7
VII. Step 7 — Install Flue Hood ...................7
VIII. Step 8 — Install Gas Piping ..................7
IX. Step 9 — Install Duct Connections ...........10
X. Step 10 — Install Electrical Connections ......11
PRE-START-UP ................................14,15
START-UP ....................................15-29
I. Check for Refrigerant Leaks .................15
II. Start Up Heating Section and
Make Adjustments .........................15
III. Start Up Cooling Section and
Make Adjustments .........................18
MAINTENANCE ................................29-32
I. Air Filter ..................................30
II. Evaporator Blower and Motor ................30
III. Flue Gas Passageways .....................30
IV. Combustion-Air Blower .....................30
V. Limit Switch ..............................30
VI. Burner Ignition ............................31
VII. Main Burners .............................31
VIII. Condenser Coil, Evaporator Coil, and
Condenser Drain Pan .......................31
IX. Condenser Fan ............................32
X. Electrical Controls and Wiring ...............32
XI. Refrigerant Circuit .........................32
XII. Gas Input .................................32
XIII. Evaporator Airflow .........................32
XIV. Metering Device — Acutrol™ Device ..........32
XV. Liquid Line Strainer ........................32
TROUBLESHOOTING ...........................33-35
START-UP CHECKLIST ..........................CL-1
NOTE TO INST ALLER — Before the installation, READ THESE
INSTRUCTIONS CAREFULLY AND COMPLETELY. Also, make sure the User’s Manual and Replacement Guide are left with the unit after installation. The furnace is NOT to be used for temporary heating of buildings or structures under construction.
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electrical compo­nents. Only trained and qualified personnel should install, repair, or service air-conditioning equipment.
Untrained personnel can perform basic maintenance func­tions of cleaning coils and 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 ex­tinguisher available for all brazing operations.
WARNING:
Improper installation, adjustment, alter­ation, service, maintenance, or use can cause carbon mon­oxide poisoning, fire, or an explosion which can result in personal injury or unit damage. Consult a qualified installer, service agency, or gas supplier for informa­tion or assistance. The qualified installer or agency must use only factory-authorized kits or accessories when modi­fying this product.
WARNING:
Before performing service or mainte­nance operations on unit, turn off gas supply then unit main power switch. Electrical shock could cause per­sonal injury.
GENERAL
The 582A and 583A units (see Fig. 1) are fully self-contained, combination Category I gas heating/electric cooling units de­signed for outdoor installation. See Fig. 2 and 3 (pages 2,3) for unit dimensions. All unit sizes have return and discharge openings for both horizontal and downflow configurations, and are factory shipped with all downflow duct openings covered. Units may be installed on a rooftop, a cement slab, or di­rectly on the ground (if permitted by local codes). See Fig. 4 for roof curb dimensions.
Fig. 1 — Units 582A and 583A
(Shown with Accessory Wire Grille)
installation, start-up and service instructions
SINGLE PACKAGE GAS HEATING/ ELECTRIC COOLING UNITS
582A
Sizes 018-060
583A
Sizes 024-060
1
1
⁄2to 5 Nominal Tons
Cancels: II 582A-18-1 II 582A-18-2
3/15/99
Page 2
REQ’D CLEARANCES FOR OPERATIONAND SERVICING. in. (mm)
Evaporator coil access side ......................36(914)
Power entry side (except for NEC requirements) ..............36(914)
Unit top .............................48(1219)
Side opposite ducts .........................36(914)
Duct panel ...........................12(304.8)*
*Minimum distances: If unit is placed less than 12 in. (304.8 mm) from wall system, then the
system performance may be compromised.
REQ’D CLEARANCES TO COMBUSTIBLE MAT’L. in. (mm)
Top of unit ............................14(355.6)
Duct side of unit ...........................2(50.8)
Side opposite ducts ........................14(355.6)
Bottom of unit ..........................0.50 (12.7)
Flue panel ............................36(914.4)
NEC REQ’D CLEARANCES. in. (mm)
Between units, power entry side ...................42(1066.8)
Unit and ungrounded surfaces, power entry side ..............36(914)
Unit and block or concrete walls and other grounded
surfaces, control box side .....................42(1066.8)
UNIT 582A
ELECTRICAL
CHARACTERISTICS
UNIT WEIGHT UNIT HEIGHT in. [mm] CENTER OF GRAVITY in. [mm]
lb kg A X Y Z
582A018040 208/230-1-60 249.0 113.2 35.02 [889.5] 20.0 [508.0] 14.0 [355.6] 15.0 [381.0] 582A024040/060 208/230-1-60 280.0 127.3 35.02 [889.5] 22.5 [571.5] 13.0 [330.2] 15.0 [381.0] 582A030040/060 208/230-1-60, 208/230-3-60 280.0 127.3 35.02 [889.5] 21.5 [546.1] 13.75 [349.3] 15.0 [381.0] 582A036060/090 208/230-1-60, 208/230-3-60, 460-3-60 314.0 142.7 35.02 [889.5] 22.5 [571.5] 14.0 [355.6] 13.0 [330.2] 582A042060/090 208/230-1-60, 208/230-3-60, 460-3-60 355.0 161.4 35.02 [889.5] 21.5 [546.1] 13.5 [342.9] 13.0 [330.2]
UNIT
ELECTRICAL
CHARACTERISTICS
UNIT WEIGHT UNIT HEIGHT in. [mm] CENTER OF GRAVITY in. [mm]
lb kg A X Y Z
583A024040/060 208/230-1-60 290.0 639.3 35.02 [889.5] 22.0 [558.8] 14.5 [368.3] 16.0 [406.4] 583A030040/060 208/230-1-60, 208/230-3-60 313.0 690.0 39.02 [991.1] 22.0 [558.8] 15.3 [387.4] 17.6 [447.0] 583A036060/090 208/230-1-60, 208/230-3-60, 460-3-60 321.0 707.7 35.02 [889.5] 22.0 [558.8] 15.3 [387.4] 16.5 [419.1]
LEGEND
CG — Center of Gravity COND — Condenser EVAP — Evaporator NEC — National Electrical Code REQ’D — Required
NOTE: Dimensions are in mm [in.]
Fig. 2 — 582A018-042 and 583A024-036 Unit Dimensions
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Page 3
FLUE HOOD
REQ’D CLEARANCES FOR OPERATION AND SERVICING. in. (mm)
Evaporator coil access side .....................36(914)
Power entry side (except for NEC requirements) ............36(914)
Unit top ............................48(1219)
Side opposite ducts ........................36(914)
Duct panel ...........................12(304.8)*
*Minimum distances: If unit is placed less than 12 in. (304.8 mm) from wall system, then
the system performance may be compromised.
REQ’D CLEARANCES TO COMBUSTIBLE MAT’L. in. (mm)
T op of unit ...........................14(355.6)
Duct side of unit ..........................2(50.8)
Side opposite ducts .......................14(355.6)
Bottom of unit .........................0.50 (12.7)
Flue panel ...........................36(914.4)
NEC REQ’D CLEARANCES. in. (mm)
Between units, power entry side ..................42(1066.8)
Unit and ungrounded surfaces, power entry side ............36(914)
Unit and block or concrete walls and other grounded
surfaces, control box side ....................42(1066.8)
LEGEND
CG — Center of Gravity COND — Condenser EVAP — Evaporator NEC — National Electrical Code REQ’D — Required
NOTE: Dimensions are in mm [in.]
UNIT
ELECTRICAL
CHARACTERISTICS
UNIT WEIGHT UNIT HEIGHT in. [mm] CENTER OF GRAVITY in. [mm]
lb kg A X Y Z
582A048090/115/130 208-230/1/60, 208/230-3-60, 460-3-60 415 188.6 38.98 [990.2] 22 [558.5] 16 [406.4] 17 [432.0] 582A060090/115/130 208/230-1-60, 208/230-3-60, 460-3-60 450 204.5 38.98 [990.2] 22 [558.5] 16 [406.4] 17 [432.0]
UNIT
ELECTRICAL
CHARACTERISTICS
UNIT WEIGHT UNIT HEIGHT in. [mm] CENTER OF GRAVITY in. [mm]
lb kg A X Y Z
583A042060/090 208/230-1-60, 208/230-3-60, 460-3-60 382.0 842.2 38.98 [990.2] 23.0 [584.2] 16.3 [412.8] 16.6 [421.6] 583A048090/115/130 208/230-1-60, 208/230-3-60, 460-3-60 421.0 928.2 38.98 [990.2] 21.5 [546.1] 16.6 [422.1] 18.0 [457.2] 583A060090/115/130 208/230-1-60, 208/230-3-60, 460-3-60 468.0 1031.7 42.98 [1091.7] 23.5 [596.9] 16.3 [412.8] 17.6 [447.0]
Fig. 3 — 582A048,060 and 583A042,048,060 Unit Dimensions
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Page 4
RECEIVING AND INSTALLATION I. STEP 1 — CHECK EQUIPMENT A. Identify Unit
The unit model number and serial number are stamped on unit identification plate. Check this information against ship­ping papers and job data.
B. Inspect Shipment
Inspect for shipping damage while unit is still on shipping pallet. If unit appears to be damaged or is torn loose from its anchorage, have it examined by transportation inspectors be­fore removal. Forward claim papers directly to transporta­tion company. Manufacturer is not responsible for any dam­age incurred in transit.
Check all items against shipping list. Immediately notify the nearest Bryant Air Conditioning office if any item is missing.
To prevent loss or damage, leave all parts in original pack­ages until installation.
II. STEP 2 — PROVIDE UNIT SUPPORT A. Roof Curb
Install accessory roof curb in accordance with instructions shipped with curb. See Fig. 4 for roof curb dimensions. In­stall insulation, cant strips, roofing, and flashing. Ductwork must be attached to curb.
IMPORTANT: The gasketing of the unit to the roof curb is critical for a watertight seal. Install gasketing material sup­plied with the roof curb. Improperly applied gasketing can result in water leaks, air leaks, and poor unit performance.
Curb should be level to within
1
⁄4inch. This is necessary for unit drain to function properly. Refer to accessory roof curb installation instructions for additional information as required.
B. Slab Mount
Place the unit on a solid, level concrete pad that is a mini­mum of 4 in. thick with 2 in. above grade. The slab should be flush on the compressor end of the unit (to allow condensate drain installation) and should extend 2 in. on the three re­maining sides of the unit. See Fig. 5. Do not secure the unit to the slab except when required by local codes.
C. Ground Mount
The unit may be installed either on a slab or placed directly on the ground if local codes permit. Place the unit on level ground prepared with gravel for condensate discharge.
III. STEP 3 — 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, unit is provided with flanges on the hori­zontal openings.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.
Aminimum clearance is not required around ductwork. Cabi­net return-air static shall not exceed −.25 in. wg.
IV. STEP 4 — PROVIDE CLEARANCES
The required minimum operating and service clearances are shown in Fig. 2 and 3. Adequate combustion, ventilation, and condenser air must be provided, in accordance with section
5.3, Air for Combustion and Ventilation, of the National Fuel Gas CodeANSI (American National Standards Institute) Z223.1 (in Canada, sections 7.2, 7.3 or 7.4 or Can/CGA [Canadian Gas Association] B149 Installation Codes), or applicable pro­visions of local building code.
CAUTION:
Do not restrict condenser airflow. An air restriction at either the outdoor-air inlet or the fan dis­charge can be detrimental to compressor life.
The condenser fan pulls air through the condenser coil and discharges it through the top cover. Be sure that the fan dis­charge does not recirculate to the condenser coil. Do not lo­cate the unit in either a corner or under an overhead obstruction. The minimum clearance under a partial overhang (such as a normal house overhang) is 48-in. above the unit top. The maxi­mum horizontal extension of a partial overhang must not ex­ceed 48 inches.
Do not place the unit where water, ice, or snow from an overhang or roof will damage or flood the unit. Do not in­stall the unit on carpeting, tile, or other combustible materials. The unit may be installed on wood flooring or on Class A, B, or C roof covering materials.
V. STEP 5 — RIG AND PLACE UNIT
CAUTION:
When installing the unit on a rooftop, be sure the roof will support the additional weight.
Use spreader bars or crate top when rigging the unit. The units must be rigged for lifting as shown in Fig. 6. Refer to Tables 1 and 2 for operating weight. Use extreme caution to
prevent damage when moving the unit. Unit must remain in an upright position during all rigging and moving opera­tions. The unit must be level for proper condensate drainage;
therefore, the ground-level pad or accessory roof curb must be level before setting the unit in place. When a field­fabricated support is used, be sure that the support is level and properly supports the unit.
—4—
Page 5
UNIT SIZE PART NUMBER
A
in. [mm]
B
in. [mm]
C
in. [mm]
D
in. [mm]
FLAT
CURB
582A018-042 583A024-036
CPRFCURB006A00 8 [203] 11
27
⁄32[301] 305⁄8[778] 283⁄4[730]
CPRFCURB007A00 14 [356] 11
27
⁄32[301] 305⁄8[778] 283⁄4[730]
582A048, 060
583A042-060
CPRFCURB008A00 8 [203] 15
27
⁄32[402] 421⁄8[1070] 401⁄4[1022]
CPRFCURB009A00 14 [356] 15
27
⁄32[402] 421⁄8[1070] 401⁄4[1022]
NOTES:
1. Roof curb must be set up for unit being installed.
2. Seal strip must be applied as required to unit being installed.
3. Dimensions in [ ] are in millimeters.
4. Roof curb is made of 16 gage steel.
5. Table lists only the dimensions per part number that have changed.
6. Attach ductwork to curb (flanges of duct rest on curb).
7. Insulated panels: 1-in. thick fiberglass 1 lb density.
8. Dimensions are in inches.
3.0"
4.0"
BASE PAN
BOTTOM SUPPLY
0.75"
SIDE PANEL
SUPPORT RIB(S)
COUNTER FLASHING (FIELD SUPPLIED)
NAILER
ROOFING FELT (FIELD SUPPLIED)
CANT STRIP (FIELD SUPPLIED)
ROOFING MATERIAL (FIELD SUPPLIED)
INSULATION (FIELD SUPPLIED)
SEAL STRIP (FACTORY SUPPLIED)
FULL PERIMETER CURB
Fig. 4 — Roof Curb Dimensions
—5—
Page 6
Fig. 5 — Slab Mounting Details
UNIT 582A
MAXIMUM
WEIGHT
AB
Size lb kg in. mm in. mm
018 271 123.2 20.0 508.0 14.0 355.6 024 302 137.3 22.5 571.5 13.0 330.2 030 302 137.3 21.5 546.1 13.75 349.3 036 336 152.7 22.5 571.5 14.0 355.6 042 377 171.4 21.5 546.1 13.5 342.9 048 437 198.6 22.0 558.5 17.0 432.0 060 472 214.5 22.0 558.5 17.0 432.0
UNIT 583A
MAXIMUM
WEIGHT
AB
Size lb kg in. mm in. mm
024 312 688.0 22.0 558.5 14.5 368.3 030 335 738.7 22.0 558.5 15.3 388.6 036 343 756.4 22.0 558.5 15.3 388.6 042 404 890.9 23.0 584.2 16.3 414.0 048 443 976.9 21.5 546.1 16.3 414.0 060 490 1080.5 23.5 596.9 16.3 414.3
Fig. 6 — Suggested Rigging
—6—
Page 7
VI. STEP 6 — CONNECT CONDENSATE DRAIN NOTE: When installing condensate drain connection be sure
to comply with local codes and restrictions. Models 582A and 583A dispose of condensate water through
a
3
⁄4in. NPT fitting which exits through the compressor ac-
cess panel. See Fig. 2 and 3 for location. Condensate water can be drained directly onto the roof in roof-
top installations (where permitted) or onto a gravel apron in ground-level installations. Install a field-supplied conden­sate trap at end of condensate connection to ensure proper drainage. Make sure that the outlet of the trap is at least 1 in. lower than the drain-pan condensate connection to pre­vent the pan from overflowing. See Fig. 7. Prime the trap with water. When using a gravel apron, make sure it slopes away from the unit.
If the installation requires draining the condensate water away from the unit, install a 2-in. trap at the condensate connec­tion to ensure proper drainage. See Fig. 7. Make sure that the outlet of the trap is at least 1 in. lower than the drain­pan condensate connection to prevent the pan from overflow­ing. Prime the trap with water. Connect a drain tube using a minimum of
3
⁄4-in. PVC or3⁄4-in. copper pipe (all field­supplied) at the outlet end of the 2-in. trap. Do not undersize the tube. Pitch the drain tube downward at a slope of at least one in. for every 10 ft of horizontal run. Be sure to check the drain tube for leaks.
VII. STEP 7 — INSTALL FLUE HOOD
The flue hood assembly is shipped screwed to the coil panel in the indoor blower compartment. Remove the service ac­cess panel to locate the assembly.
For units being installed in California Air Quality Manage­ment Districts which require NO
x
emissions of 40 nanograms/
joule or less, a field-installed low NO
x
kit must be installed.
For 40,000 and 60,000 Btuh input models, use kit part num­ber CPLOWNOX002A00. This kit contains two NO
x
reduc­tion baffles and one conversion label. For 90,000 115,000 and 130,000 Btuh input models, use kit part number CPLOWNOX003A00. This kit contains three NO
x
reduction
baffles and one conversion label.
CAUTION:
The venting system is designed to en­sure proper venting. The flue hood assembly must be installed as indicated in this section of the unit instal­lation instructions.
Install the flue hood as follows:
1. This installation must conform with local building codes and with the National Fuel Gas Code (NFGC), ANSI Z223.1 (in Canada, CAN/CGA B149.1, and B149.2) or NFPA (National Fire Protection Association) latest re­vision. Refer to Provincial and local plumbing or waste­water codes and other applicable local codes.
2. Remove flue hood from shipping location (inside the blower compartment). Place vent cap assembly over flue panel. Orient screw holes in vent cap with holes in the flue panel.
3. Secure flue hood to flue panel by inserting a single screw on the right side and the left side of the hood.
VIII. STEP 8 — INSTALL GAS PIPING
The gas supply pipe enters the unit through the access hole provided. The gas connection to the unit is made to the
1
⁄2-in.
FPT gas inlet on the manual shutoff or gas valve. Install a gas supply line that runs to the heating section. Re-
fer to Table 3 and the NFGC for gas pipe sizing. Do not use cast-iron pipe. It is recommended that a black iron pipe is used. Check the local utility for recommendations concern­ing existing lines. Size gas supply piping for 0.5 in. wg maxi­mum pressure drop. Never use pipe smaller than the
1
⁄2-in.
FPT gas inlet on the unit gas valve.
For natural gas applications, the gas pressure at unit gas con­nection must not be less than 4.0 in. wg or greater than 13 in. wg while the unit is operating. For propane applica­tions, the gas pressure must not be less than 4.0 in. wg or greater than 13 in. wg at the unit connection.
An
1
⁄8-in. NPT plugged tapping accessible for test gage con­nection must be installed immediately upstream of the gas supply connection to the gas valve.
When installing the gas supply line, observe local codes per­taining to gas pipe installations. Refer to the NFGC ANSI Z223.1-1988 NFPAlatestedition(in Canada, CAN/CGAB149.1, (2)-M86). In the absence of local building codes, adhere to the following pertinent recommendations:
1. Avoid low spots in long runs of pipe. Grade all pipe
1
⁄4inch in every 15 ft to prevent traps. Grade all hori­zontal runs downward to risers. Use risers to connect to heating section and to meter.
2. Protect all segments of piping system against physical and thermal damage. Support all piping with appropri­ate straps, hangers, etc. Use a minimum of one hanger every 6 ft. For pipe sizes larger than
1
⁄2in., follow rec-
ommendations of national codes.
3. Apply joint compound (pipe dope) sparingly and only to male threads of joint when making pipe connections. Use only pipe dope that is resistant to action of liquefied petroleum gases as specified by local and/or national codes.
Never use Teflon tape.
4. Install sediment trap in riser leading to heating section per Fig. 8. This drip leg functions as a trap for dirt and condensate.
5. Install an accessible, external, manual main shutoff valve in gas supply pipe within 6 ft of heating section.
6. Install ground-joint union close to heating section be­tween unit manual shutoff and external manual main shutoff valve.
7. Pressure-test all gas piping in accordance with local and national plumbing and gas codes before connecting pip­ing to unit.
NOTE: Pressure test the gas supply system after the gas sup- ply piping is connected to the gas valve. The supply piping must be disconnected from the gas valve during the test­ing of the piping systems when test pressure is in excess of
0.5 psig. Pressure test the gas supply piping system at pres­sures equal to or less than 0.5 psig. The unit heating section must be isolated from the gas piping system by closing the external main manual shutoff valve and slightly opening the ground-joint union.
Fig. 7 — Condensate Trap
—7—
Page 8
Table 1 — Physical Data — Unit 582A
UNIT SIZE 582A 018040 024040 024060 030040 030060 036060 036090 042060 042090 NOMINAL CAPACITY (ton) 1
1
⁄
2
222
1
⁄
2
2
1
⁄
2
333
1
⁄
2
3
1
⁄
2
OPERATING WEIGHT (lb) 249 280 280 280 280 314 314 355 355 COMPRESSORS Reciprocating
Quantity 1
REFRIGERANT (R-22)
Quantity (lbs) 2.6 3.5 3.5 3.65 3.65 3.75 3.75 5.7 5.7
REFRIGERANT METERING DEVICE Acutrol™ Device
Orifice ID (in.) .034 .034 .034 .034 .034 .032 .032 .034 .034
CONDENSER COIL
Rows...Fins/in. 1...17 1...17 1...17 1...17 1...17 1...17 1...17 1...17 1...17 Face Area (sq ft) 6.1 9.1 9.1 9.1 9.1 9.1 9.1 9.1 9.1
CONDENSER FAN
Nominal Cfm 2000 2400 2400 2400 2400 3000 3000 3000 3000 Diameter (in.) 22 22 22 22 22 22 22 22 22 Motor Hp (Rpm)
1
⁄8(825)1⁄8(825)1⁄8(825)1⁄8(825)1⁄8(825)1⁄4(1100)1⁄4(1100)1⁄4(1100)1⁄4(1100)
EVAPORATOR COIL
Rows...Fins/in. 2...15 2...15 2...15 2...15 2...15 3...15 3...15 4...15 4...15 Face Area (sq ft) 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1
EVAPORATOR BLOWER
Nominal Airflow (Cfm) 600 800 800 1000 1000 1200 1200 1400 1400 Size (in.) 10x10 10x10 10x10 10x10 10x10 11x10 11x10 11x10 11x10 Motor (Hp)
1
⁄
4
1
⁄
4
1
⁄
4
1
⁄
4
1
⁄
4
1
⁄
2
1
⁄
2
3
⁄
4
3
⁄
4
FURNACE SECTION*
Burner Orifice No. (Qty...Drill Size)
Natural Gas
2...45 2...45 2...38 2...45 2...38 2...38 3...38 2...38 3...38
Burner Orifice No. (Qty...Drill Size)
Propane Gas
2...50 2...50 2...46 2...50 2...46 2...46 3...46 2...46 3...46
RETURN-AIR FILTERS (in.)†
Throwaway 20x20 20x20 20x20 20x20 20x20 20x24 20x24 20x24 20x24
UNIT SIZE 582A 048090 048115 048130 060090 060115 060130 NOMINAL CAPACITY (ton) 444555 OPERATING WEIGHT (lb) 415 415 415 450 450 450 COMPRESSORS Scroll Reciprocating
Quantity 11
REFRIGERANT (R-22)
Quantity (lbs) 6.0 6.0 6.0 8.0 8.0 8.0
REFRIGERANT METERING DEVICE Acutrol Device
Orifice ID (in.) .032 .032 .032 .030 .030 .030
CONDENSER COIL
Rows...Fins/in. 1...17 1...17 1...17 2...17 2...17 2...17 Face Area (sq ft) 12.3 12.3 12.3 12.3 12.3 12.3
CONDENSER FAN
Nominal Cfm 3600 3600 3600 3600 3600 3600 Diameter (in.) 22 22 22 22 22 22 Motor Hp (Rpm)
1
⁄4(1100)1⁄4(1100)1⁄4(1100)1⁄4(1100)1⁄4(1100)1⁄4(1100)
EVAPORATOR COIL
Rows Fins...in. 3...15 3...15 3...15 4...15 4...15 4...15 Face Area (sq ft) 4.7 4.7 4.7 4.7 4.7 4.7
EVAPORATOR BLOWER
Nominal Airflow (Cfm) 1600 1600 1600 2000 2000 2000 Size (in.) 11x10 11x10 11x10 11x10 11x10 11x10 Motor (hp)
3
⁄
4
3
⁄
4
3
⁄
4
1.0 1.0 1.0
FURNACE SECTION*
Burner Orifice No. (Qty...Drill Size)
Natural Gas
3...38 3...33 3...31 3...38 3...33 3...31
Burner Orifice No. (Qty...Drill Size)
Propane Gas
3...46 3...42 3...41 3...46 3...42 3...41
RETURN-AIR FILTERS (in.)†
Throwaway 24x30 24x30 24x30 24x30 24x30 24X30
*Based on altitude of 0 to 2000 feet.
†Required filter sizes shown are based on the larger of the ARI (Air Conditioning
and Refrigeration Institute) rated cooling airflow or the heating airflow velocity of 300 ft/min for throwaway type or 450 ft/min for high-capacity type. Air filter pressure drop for non-standard filters must not exceed 0.08 in. wg.
—8—
Page 9
Table 2 — Physical Data — Unit 583A
UNIT SIZE 583A 024040 024060 030040 030060 036060 036090 042060 042090 NOMINAL CAPACITY (ton) 222
1
⁄
2
2
1
⁄
2
333
1
⁄
2
3
1
⁄
2
OPERATING WEIGHT (lb) 290 290 313 313 321 321 382 382 COMPRESSORS Scroll
Quantity 1
REFRIGERANT (R-22)
Quantity (lb) 3.4 3.4 4.4 4.4 5.2 5.2 6.4 6.4
REFRIGERANT METERING DEVICE
Orifice ID (in.) .034 .034 .030 .030 .032 .032 .034 .034
CONDENSER COIL
Rows...Fins/in. 1...17 1...17 1...17 1...17 2...17 2...17 2...17 2...17 Face Area (sq ft) 9.1 9.1 12.7 12.7 9.1 9.1 12.3 12.3
CONDENSER FAN
Nominal Cfm 2350 2350 2350 2350 2350 2350 3300 3300 Diameter (in.) 22 22 22 22 22 22 22 22 Motor Hp (Rpm)
1
⁄8(825)1⁄8(825)1⁄8(825)1⁄8(825)1⁄8(825)1⁄8(825)1⁄4(1100)1⁄4(1100)
EVAPORATOR COIL
Rows...Fins/in. 3...15 3...15 3...15 3...15 3...15 3...15 3...15 3...15 Face Area (sq ft) 3.1 3.1 3.1 3.1 3.7 3.7 4.7 4.7
EVAPORATOR BLOWER
Nominal Airflow (Cfm) 800 800 1000 1000 1200 1200 1400 1400 Size (in.) 10x10 10x10 10x10 10x10 11x10 11x10 11x10 11x10 Motor (Hp)
1
⁄
4
1
⁄
4
1
⁄
4
1
⁄
4
1
⁄
2
1
⁄
2
3
⁄
4
3
⁄
4
FURNACE SECTION*
Burner Orifice No. (Qty...Drill Size)
Natural Gas
2...44 2...38 2...44 2...38 2...38 3...38 2...38 3...38
Burner Orifice No. (Qty...Drill Size)
Propane Gas
2...50 2...46 2...50 2...46 2...46 3...46 2...46 3...46
RETURN-AIR FILTERS (in.)†
Throwaway 20x20 20x20 20x20 20x20 20x24 20x24 24x30 24x30
UNIT SIZE 583A 048090 048115 048130 060090 060115 060130 NOMINAL CAPACITY (ton) 444555 OPERATING WEIGHT (lb) 421 421 421 468 468 468 COMPRESSORS Scroll
Quantity 1
REFRIGERANT (R-22)
Quantity (lb) 7.2 7.2 7.2 8.1 8.1 8.1
REFRIGERANT METERING DEVICE Acutrol Device
Orifice ID (in.) .034 .034 .034 .032 .032 .032
CONDENSER COIL
Rows...Fins/in. 2...17 2...17 2...17 2...17 2...17 2...17 Face Area (sq ft) 12.3 12.3 12.3 16.4 16.4 16.4
CONDENSER FAN
Nominal Cfm 3300 3300 3300 3300 3300 3300 Diameter (in.) 22 22 22 22 22 22 Motor Hp (Rpm)
1
⁄4(1100)1⁄4(1100)1⁄4(1100)1⁄4(1100)1⁄4(1100)1⁄4(1100)
EVAPORATOR COIL
Rows Fins...in. 4...15 4...15 4...15 4...15 4...15 4...15 Face Area (sq ft) 4.7 4.7 4.7 4.7 4.7 4.7
EVAPORATOR BLOWER
Nominal Airflow (Cfm) 1600 1600 1600 1750 1750 1750 Size (in.) 11x10 11x10 11x10 11x10 11x10 11x10 Motor (Hp)
3
⁄
4
3
⁄
4
3
⁄
4
1.0 1.0 1.0
FURNACE SECTION*
Burner Orifice No. (Qty...Drill Size)
Natural Gas
3...38 3...33 3...31 3...38 3...33 3...31
Burner Orifice No. (Qty...Drill Size)
Propane Gas
3...46 3...42 3...41 3...46 3...42 3...41
RETURN-AIR FILTERS (in.)†
Throwaway 24x30 24x30 24x30 24x30 24x30 24X30
*Based on altitude of 0 to 2000 feet.
†Required filter sizes shown are based on the larger of the ARI (Air Conditioning
and Refrigeration Institute) rated cooling airflow or the heating airflow velocity of 300 ft/min for throwaway type or 450 ft/min for high-capacity type. Air filter pressure drop for non-standard filters must not exceed 0.08 in. wg.
—9—
Page 10
(Text continued from page 7)
CAUTION:
Unstable operation may occur when the gas valve and manifold assembly are forced out of po­sition while connecting improperly-routed rigid gas pip­ing to the gas valve. Use a backup wrench when mak­ing connection to avoid strain on, or distortion of, the gas control piping.
CAUTION:
If a flexible conductor is required or al­lowed by the authority having jurisdiction, black iron pipe shall be installed at the gas valve and shall ex­tend a minimum of 2 in. outside the unit casing.
WARNING:
Never use a match or other open flame when checking for gas leaks. Never purge gas line into combustion chamber.Failure to follow this warning could result in an explosion causing personal injury or death.
8. Check for gas leaks at the field-installed and factory­installed gas lines after all piping connections have been completed. Use soap-and-water solution (or method speci­fied by local codes and/or regulations).
IX. STEP 9 — INSTALL DUCT CONNECTIONS
The unit has duct flanges on the supply- and return-air open­ings on the side and bottom of the unit. For downshot appli­cations the ductwork connects to the roof curb. See Fig. 2 and 3 for connection sizes and locations.
A. Configuring Units for Downflow (Vertical) Discharge
WARNING:
Before performing service or mainte­nance operations on the system, turn off main power to unit or electrical shock could result.
1. Open all electrical disconnects before starting any serv­ice work.
2. Remove return duct cover located on duct panel by break­ing connecting tabs with screwdriver and a hammer (Fig. 9).
3. To remove supply duct cover, break front and right side connecting tabs with a screwdriver and a hammer. Push louver down to break rear and left side tabs (Fig. 10).
4. If unit ductwork is to be attached to vertical opening flanges on the unit basepan (jackstand applications only), do so at this time.
CAUTION:
Collect ALL screws that were removed. Do not leave screws on rooftop as permanent damage to the roof may occur.
5. It is recommended that the basepan insulation around the perimeter of the vertical return-air opening be secured to the basepan with aluminum tape.Applicable local codes may require aluminum tape to prevent exposed fiberglass.
6. Cover both horizontal duct openings with the duct cov­ers from the accessory duct cover kit. Ensure opening is air- and watertight.
7. After completing unit conversion, perform all safety checks and power up unit.
NOTE: The design and installation of the duct system must be in accordance with the standards of the NFPA for instal­lation of nonresidence-type air conditioning and ventilating systems, NFPA 90A or residence-type, NFPA 90B; and/or lo­cal codes and residence-type, NFPA 90B; and/or local codes and ordinances.
Adhere to the following criteria when selecting, sizing, and installing the duct system:
1. Units are shipped for side shot installation.
2. Select and size ductwork, supply-air registers, and return-air grilles according to American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) recommendations.
3. Use flexible transition between rigid ductwork and unit to prevent transmission of vibration. The transition may be screwed or bolted to duct flanges. Use suitable gas­kets to ensure weathertight and airtight seal.
4. All units must have field-supplied filters or accessory fil­ter rack installed in the return-air side of the unit. Rec­ommended sizes for filters are shown in Tables 1 and 2.
5. Size all ductwork for maximum required airflow (either heating or cooling) for unit being installed. Avoid abrupt duct size increases or decreases or performance may be affected.
6. Adequately insulate and weatherproof all ductwork located outdoors. Insulate ducts passing through uncon­ditioned space, and use vapor barrier in accordance with latest issue of Sheet Metal and Air Conditioning Contractors National Association (SMACNA) and Air Conditioning Contractors of America (ACCA) minimum installation standards for heating and air conditioning systems. Secure all ducts to building structure.
7. Flash, weatherproof, and vibration-isolate all openings in building structure in accordance with local codes and good building practices.
Fig. 8 — Sediment Trap
—10—
Page 11
Table 3 — Maximum Gas Flow Capacity*
NOMINAL
IRON PIPE,
SIZE
(in.)
INTERNAL
DIAMETER
(in.)
LENGTH OF PIPE, FT†
10 20 30 40 50 60 70 80 90 100 125 150 175 200
1
⁄
2
.622 175 120 97 82 73 66 61 57 53 50 44 40 — —
3
⁄
4
.824 360 250 200 170 151 138 125 118 110 103 93 84 77 72
1 1.049 680 465 375 320 285 260 240 220 205 195 175 160 145 135
1
1
⁄
4
1.380 1400 950 770 600 580 530 490 460 430 400 360 325 300 280
1
1
⁄
2
1.610 2100 1460 1180 990 900 810 750 690 650 620 550 500 460 430
*Capacity of pipe in cu ft of gas per hr for gas pressure of 0.5 psig or less. Pressure drop of 0.5-in. wg (based on
a 0.60 specific gravity gas). Refer to Table C-4, National Fire Protection Association NFPA 54.
†This length includes an ordinary number of fittings.
X. STEP 10 — INSTALL ELECTRICAL CONNECTIONS
WARNING:
The 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 an electrical wire con­nected to the unit ground lug in the control compart­ment, or conduit approved for electrical ground when installed in accordance with NEC (National Electrical Code) ANSI/NFPA (latest edition) (in Canada, Cana­dian Electrical Code CSA [Canadian Standards Asso­ciation] C22.1) and local electrical codes. Do not use gas piping as an electrical ground. Failure to adhere to this warning could result in personal injury or death.
CAUTION:
Failure to follow these precautions could result in damage to the unit being installed:
1. Make all electrical connections in accordance with NEC ANSI/NFP A(latest edition) and local electrical codes gov­erning such wiring. In Canada, all electrical connec­tions must be in accordance with CSA standard C22.1 Canadian Electrical Code Part 1 and applicable local codes. Refer to unit wiring diagram.
2. Use only copper conductor for connections between field­supplied electrical disconnect switch and unit. DO NOT USE ALUMINUM WIRE.
3. Be sure that high-voltage power to unit is within oper­ating voltage range indicated on unit rating plate.
4. Do not damage internal components when drilling through any panel to mount electrical hardware, conduit, etc. On 3-phase units, ensure phases are balanced within 2%. Consult local power company for correction of improper voltage and/or phase imbalance.
A. High-Voltage Connections
The unit must have a separate electrical service with a field­supplied, waterproof, disconnect switch mounted at, or within sight from, the unit. Refer to the unit rating plate for maxi­mum fuse/circuit breaker size and minimum circuit amps (am­pacity) for wire sizing. See Tables 4 and 5 for electrical data.
The field-supplied disconnect switch box may be mounted on the unit over the high-voltage inlet hole when the standard power and low-voltage entry points are used. See Fig. 2 and 3 for acceptable location.
See unit wiring label and Fig. 11 for reference when making high voltage connections. Proceed as follows to complete the high-voltage connections to the unit.
Fig. 9 — Supply and Return Duct Openings
Fig. 10 — Vertical Duct Cover Removed
—11—
Page 12
Single phase units:
1. Run the high-voltage (L1, L2) and ground leads into the control box.
2. Connect ground lead to chassis ground connection.
3. Connect L1 to pressure lug connection 11 of the com­pressor contactor.
4. Connect L2 to pressure lug connection 23 of the com­pressor contactor.
Three phase units:
1. Run the high-voltage (L1, L2, L3) and ground leads into the control box.
2. Connect ground lead to chassis ground connection.
3. Locate the black and yellow wires connected to the lines side of the contactor.
4. Connect field L1 to black wire on connection 11 of the compressor contactor.
5. Connect field wire L2 to yellow wire on connection 13 of the compressor contactor.
6. Connect field wire L3 to blue wire from compressor.
B. Special Procedures for 208-v Operation
WARNING:
Make sure that the gas supply then the power supply to the unit is switched OFF before mak­ing any wiring changes. Electrical shock can cause per­sonal injury or death.
C. Control Voltage Connections NOTE: Do not use any type of power-stealing thermostat. Unit
control problems may result.
Table 4 — Electrical Data — Unit 582A
UNIT SIZE
582A
V-PH-Hz
VOLTAGE
RANGE
COMPRESSOR
OUTDOOR FAN
MOTOR
INDOOR FAN
MOTOR
POWER SUPPLY FUSE OR
HACR BRKR
Min Max RLA LRA FLA FLA MCA MOCP*
018 208/230-1-60 187 253 9.0 45.0 0.8 1.8 13.9 20 024 208/230-1-60 187 253 12.8 61.0 0.8 2.0 18.8 30
030
208/230-1-60 187 253 14.4 73.0 0.8 2.0 20.8 30 208/230-3-60 187 253 12.6 68.0 0.8 2.0 13.2 20
036
208/230-1-60 187 253 15.1 81.0 1.6 3.6 24.1 35 208/230-3-60 187 253 10.9 78.0 1.6 3.6 18.8 25
460-3-60 414 506 5.8 40.0 0.9 1.9 10.1 15
042
208/230-1-60 187 253 18.6 105.0 1.6 3.8 27.5 45 208/230-3-60 187 253 10.7 85.0 1.6 3.8 18.8 25
460-3-60 414 506 5.3 42.0 0.9 2.0 9.5 15
048
208-230/1/60 197 253 25.3 131.0 1.6 3.8 37.0 60 208/230-3-60 187 253 13.5 108.0 1.6 3.8 22.3 35
460-3-60 414 506 6.7 47.5 0.9 2.0 11.3 15
060
208/230-1-60 187 253 28.9 147.0 1.6 6.2 43.9 60 208/230-3-60 187 253 18.6 125.0 1.6 6.2 31.1 45
460-3-60 414 506 8.5 66.5 0.9 3.2 14.7 20
LEGEND
FLA — Full Load Amps HACR — Heating, Air Conditioning and
Refrigeration
LRA — Locked Rotor Amps MCA — Minimum Circuit Amps MOCP — Maximum Overcurrent Protection RLA — Rated Load Amps
*Fuse or HACR Breaker.
NOTES:
1. In compliance with NEC (National Electrical Code) 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 CGA (Canadian Gas Association) units may be fuse or circuit breaker.
2. Minimum wire size is based on 60 C copper wire. If other than 60 C wire is used, or if length exceeds wire length in table, determine size from NEC.
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-
age of voltage imbalance. % Voltage imbalance
max voltage deviation from average voltage
= 100 x
average voltage
EXAMPLE: Supply voltage is 460-3-60.
AB = 452 v BC = 464 v AC = 455 v
452 1 464 1 455
Average Voltage =
3
1371
=
3
= 457
Determine maximum deviation from average voltage.
(AB) 457 − 452=5v (BC) 464 − 457=7v (AC) 457 − 455=2v
Maximum deviation is 7 v. Determine percent 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%.
IMPORT ANT: If the supply voltage phase imbalance is more than 2%,
contact your local electric utility company immediately.
—12—
Page 13
Table 5 — Electrical Data — Unit 538A
UNIT SIZE
583A
V-PH-Hz
VOLTAGE
RANGE
COMPRESSOR
OUTDOOR FAN
MOTOR
INDOOR FAN
MOTOR
POWER SUPPLY FUSE OR
HACR BRKR
Min Max RLA LRA FLA FLA MCA MOCP*
024 208/230-1-60 187 253 10.3 56.0 0.8 2.0 15.7 25 030
208/230-1-60 187 253 13.5 73.0 0.8 2.1 19.8 30 208/230-3-60 187 253 9.0 63.0 0.8 2.1 14.2 20
036
208/230-1-60 187 253 16.7 97.0 0.8 3.6 25.3 40 208/230-3-60 187 253 11.2 75.0 0.8 3.6 18.4 25
460-3-60 414 506 5.4 37.5 0.9 1.9 9.6 15
042
208/230-1-60 187 253 17.9 104.0 1.6 4.1 28.1 45 208/230-3-60 187 253 12.4 88.0 1.6 4.1 21.2 30
460-3-60 414 506 6.1 44.0 0.9 2.0 10.5 15
048
208/230-1-60 187 253 19.5 104.0 1.6 4.1 30.1 45 208/230-3-60 187 253 12.4 88.0 1.6 4.1 21.2 30
460-3-60 414 506 5.8 44.0 0.9 2.0 10.2 15
060
208/230-1-60 187 253 28.8 169.0 1.6 6.2 43.8 60 208/230-3-60 187 253 17.3 123.0 1.6 6.2 29.4 45
460-3-60 414 506 9.0 62.0 0.9 3.2 15.4 20
LEGEND
FLA — Full Load Amps HACR — Heating, Air Conditioning
and Refrigeration
LRA — Locked Rotor Amps MCA — Minimum Circuit Amps MOCP — Maximum Overcurrent Protection RLA — Rated Load Amps
*Fuse or HACR Breaker.
NOTES:
1. In compliance with NEC (National Electrical Code) 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 CGA (Canadian Gas Association) units may be fuse or circuit breaker.
2. Minimum wire size is based on 60 C copper wire. If other than 60 C wire is used, or if length exceeds wire length in table, determine size from NEC.
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-
age of voltage imbalance. % Voltage imbalance
max voltage deviation from average voltage
= 100 x
average voltage
EXAMPLE: Supply voltage is 460-3-60.
AB = 452 v BC = 464 v AC = 455 v
452 1 464 1 455
Average Voltage =
3
1371
=
3
= 457
Determine maximum deviation from average voltage.
(AB) 457 − 452=5v (BC) 464 − 457=7v (AC) 457 − 455=2v
Maximum deviation is 7 v. Determine percent 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.
—13—
Page 14
Use no. 18 American Wire Gage (AWG) color-coded, insu­lated (35 C minimum) wires to make the control voltage con­nections between the thermostat and the unit. If the thermo­stat is located more than 100 ft from the unit (as measured along the control voltage wires), use no. 16 AWG color-coded, insulated (35 C minimum) wires.
Standard Connection Remove knockout hole located in the flue panel adjacent to
the control access panel. See Fig. 2 and 3. Remove the rubber grommet from the installer’s packet (included with unit) and install grommet in the knockout opening. Provide a drip loop before running wire through panel.
Run the low-voltage leads from the thermostat, through the inlet hole, and into unit low-voltage splice box.
Locate five 18-gage wires leaving control box. These low­voltage connection leads can be identified by the colors red, green, yellow ,brown, and white. (See Fig. 11.)Ensure the leads are long enough to be routed into the low-voltage splice box (located below right side of control box). Stripped yellow wire is located in connection box. Route leads through hole in bot­tom of control box and make low-voltage connections as shown in Fig. 11. Secure all cut wires, so that they do not interfere with operation of unit.
D. Heat Anticipator Setting
The room thermostat heat anticipator must be properly ad­justed to ensure proper heating performance. Set the heat anticipator, using an ammeter between the W and R termi­nals to determine the exact required setting.
NOTE: For thermostat selection purposes, use 0.18 amp for the approximate required setting.
Failure to make a proper heat anticipator adjustment will result in improper operation, discomfort to the occupants of the conditioned space, and inefficientenergy utilization; how­ever, the required setting may be changed slightly to provide a greater degree of comfort for a particular installation.
E. Transformer Protection
The transformer is of the energy-limiting type. It is set to withstand a 30-second overload or shorted secondary condition.
PRE-START-UP
WARNING:
Failure to observe the following warn-
ings could result in serious personal injury:
1. Follow recognized safety practices and wear protec­tive goggles when checking or servicing refrigerant system.
2. Do not operate compressor or provide any electric power to unit unless compressor terminal cover is in place and secured.
3. Do not remove compressor terminal cover until all electrical sources are disconnected.
4. Relieve and recover all refrigerant from system be­fore touching or disturbing anything inside termi­nal box if refrigerant leak is suspected around com­pressor terminals.
5. Never attempt to repair soldered connection while refrigerant system is under pressure.
6. Do not use torch to remove any component. System contains oil and refrigerant under pressure. To re­move a component, wear protective goggles and pro­ceed as follows:
a. Shut off gas supply and then electrical power to
unit.
b. Relieve and reclaim all refrigerant from system
using both high- and low-pressure ports.
c. Cut component connecting tubing with tubing cut-
ter and remove component from unit.
d. Carefully unsweat 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 access panel.
2. Read and follow instructions on all WARNING, CAU­TION, and INFORMATIONlabels attached to, or shipped with, unit.
3. Make the following inspections: a. Inspect for shipping and handling damages such as
broken lines, loose parts, disconnected wires, etc.
b. Inspect for oil at all refrigerant tubing connections
and on unit base. Detecting oil generally indicates a refrigerant leak. Leak-test all refrigerant tubing con­nections using electronic leak detector, halide torch, or liquid-soap solution. If a refrigerant leak is de­tected, see Check for Refrigerant Leaks section on page 15.
c. Inspect all field- and factory-wiring connections. Be
sure that connections are completed and tight.
d. Inspect coil fins. If damaged during shipping and han-
dling, carefully straighten fins with a fin comb.
POWER SUPPLY
FIELD-SUPPLIED FUSED DISCONNECT
HIGH VOLTAGE POWER LEADS (SEE UNIT WIRING LABEL)
GND
CONTROL BOX
SPLICE BOX
LOW-VOLTAGE POWER LEADS (SEE UNIT WIRING LABEL)
W
Y G R C
WHT(W1)
YEL(Y) GRN(G)
RED(R) BRN(C)
THERMOSTAT (TYPICAL)
LEGEND
Field Control-Voltage Wiring Field High-Voltage Wiring
NOTE: Use blue wire for 3-phase units only.
Fig. 11 — High- and Control-Voltage Connections
—14—
Page 15
4. Verify the following conditions:
CAUTION:
Do not purge gas supply into the com­bustion chamber.Do not use a match or other open flame to check for gas leaks. Failure to follow this warning could result in an explosion causing personal injury or death.
a. Before lighting the unit for the first time, perform
the following: If the gas supply pipe was not purged before connecting the unit, it will be full of air. It is recommended that the ground joint union be loos­ened, and the supply line be allowed to purge until the odor of gas is detected. Never purge gas lines into a combustion chamber. Immediately upon detection of gas odor, retighten the union. Allow 5 minutes to elapse, then light unit.
b. Make sure that condenser-fan blade is correctly po-
sitioned in fan orifice. Leading edge of condenser-fan blade should be
1
⁄2in. maximum from fan orifice (see
Fig. 12). c. Make sure that air filter(s) is in place. d. Make sure that condensate drain trap is filled with
water to ensure proper drainage.
e. Make sure that all tools and miscellaneous loose parts
have been removed.
START-UP
I. CHECK FOR REFRIGERANT LEAKS
Proceed as follows to locate and repair a refrigerant leak and to charge the unit:
1. Locate leak and make sure that refrigerant system pres­sure has been relieved and recovered from both high­and low-pressure ports.
2. Repair leak using Standard Refrigerant Service proce­dures.
NOTE: Install a filter drier whenever the system has been opened for repair.
3. Add a small charge of R-22 refrigerant vapor to system and leak-test unit.
4. Evacuate and recover refrigerant from refrigerant sys­tem if additional leaks are not found.
5. Charge unit with R-22 refrigerant, using a volumetric­charging cylinder or accurate scale. Refer to unit rating plate for required charge. Be sure to add extra refriger­ant to compensate for internal volume of filter drier.
II. START UP HEATING SECTION AND MAKE ADJUSTMENTS
CAUTION:
Complete the required procedures given in Pre-Start-Up section on page 14 before starting the unit.
Do not jumper any safety devices when operating the unit. Make sure that burner orifices are properly aligned. Un-
stable operation may occur when the burner orifices in the manifold are misaligned.
Follow the lighting instructions on the heating section opera­tion label (located inside the burner or blower access door) to start the heating section.
NOTE: Make sure that gas supply has been purged, and that all gas piping has been checked for leaks.
A. Check Heating Control
Start and check the unit for proper heating control operation as follows. (See furnace lighting instructions located inside burner or blower access panel.)
1. Place the room thermostat SYSTEM switch in the HEAT position and the fan switch in the AUTO. position.
2. Set the heating temperature control of the thermostat above room temperature.
3. The induced-draft motor will start.
4. After a call for heating, the main burner should light within 5 seconds. If the burners do not light, there is a 22-second delay before another 5-second try .If the burn­ers still do not light, this sequence is repeated. If the burners do not light within 15 minutes from the initial call for heat, there is a lockout. Toreset the control, break the 24-v power to W.
5. The evaporator fan will turn on 45 seconds after the flame has been established. The evaporator fan will turn off 45 seconds after the thermostat has been satisfied.
B. Check Gas Input
Check gas input and manifold pressure after unit start-up. (See Table 6.) If adjustment is required proceed as follows.
The rated gas inputs shown in Table 6 are for altitudes from sea level to 2000 ft above sea level. These inputs are based on natural gas with a heating value of 1050 Btu/ft
3
at 0.65 specific gravity, or propane gas with a heating value of 2500 Btu/ft
3
at 1.5 specific gravity. For elevations above 2000 ft, reduce input 4% for each 1000 ft above sea level. When the gas supply being used has a different heating value or specific gravity, refer to national and local codes, or contact your distributor to determine the required orifice size.
CAUTION:
These units are designed to consume the rated gas inputs using the fixed orifices at specified mani­fold pressures as shown in Table 6. DO NOT REDRILL THE ORIFICES UNDER ANY CIRCUMSTANCES.
FAN GRILLE
MOTOR
1/8" MAX BETWEEN MOTOR AND FAN HUB
MOTOR SHAFT
Fig. 12 — Fan Blade Clearance
—15—
Page 16
Table 6 — Heating Inputs
HEATING
INPUT
(Btuh*)
NUMBER
OF
ORIFICES
GAS SUPPLY PRESSURE
(in. wg)
MANIFOLD
PRESSURE
(in. wg)
Natural Propane†
Min Max Min Max Natural Propane†
40,000 2 4.0 13.0 4.0 13.0 3.5 3.5 60,000 2 4.0 13.0 4.0 13.0 3.5 3.5
90,000 3 4.0 13.0 4.0 13.0 3.5 3.4 115,000 3 4.0 13.0 4.0 13.0 3.5 3.7 130,000 3 4.0 13.0 4.0 13.0 3.5 3.5
*When a unit is converted to propane, different size orifices must be used. See separate natural-
to-propane conversion kit instructions.
†Based on altitudes from sea level to 2000 ft above sea level. For altitudes above 2000 ft, reduce
input rating 4% for each additional 1000 ft above sea level. In Canada, from 2000 ft above sea level to 4500 ft above sea level, derate the unit 10%.
C. Adjust Gas Input
The gas input to the unit is determined by measuring the gas flow at the meter or by measuring the manifold pressure. Measuring the gas flow at the meter is recommended for natu­ral gas units. The manifold pressure must be measured to determine the input of propane gas units.
Measure Gas Flow (Natural Gas Units) Minor adjustment to the gas flow can be made by changing
the manifold pressure. The manifold pressure must be main­tained between 3.4 and 3.6 in. wg. If larger adjustments are required, change main burner orifices following the recom­mendations of national and local codes.
NOTE: All other appliances that use the same meter must be turned off when gas flow is measured at the meter.
Proceed as follows:
1. Turn off gas supply to unit.
2. Remove pipe plug on manifold (see Fig. 13) then con­nect manometer at this point. Turn on gas to unit.
3. Record number of seconds for gas meter test dial to make one revolution.
4. Divide number of seconds in Step 3 into 3600 (number of seconds in one hour).
5. Multiply result of Step 4 by the number of cu ft shown for one revolution of test dial to obtain cu ft of gas flow per hour.
6. Multiply result of Step 5 by Btu heating value of gas to obtain total measured input in Btuh. Compare this value with heating input shown in Table 6. (Consult the local gas supplier if the heating value of gas is not known.)
EXAMPLE: Assume that the size of test dial is 1 cu ft, one revolution takes 32 seconds, and the heating value of the gas is 1050 Btu/ft
3
. Proceed as follows:
1. 32 seconds to complete one revolution.
2. 3600 ÷ 32 = 112.5.
3. 112.5x1=112.5 ft
3
of gas flow/hr.
4. 112.5 x 1050 = 118,125 Btuh input.
If the desired gas input is 115,000 Btuh, only a minor change in the manifold pressure is required.
Observe manifold pressure and proceed as follows to adjust gas input:
1. Remove cover screw over regulator adjustment screw on gas valve.
2. Turn regulator adjustment screw clockwise to increase gas input, or turn regulator adjustment screw counter­clockwise to decrease input. Manifold pressure must be between 3.4 and 3.6 in. wg.
WARNING:
Unsafe operation of the unit may result if manifold pressure is outside this range. Personal in­jury or unit damage may result.
3. Replace cover screw cap on gas valve.
4. Turn off gas supply to unit. Remove manometer from pressure tap and replace pipe plug on gas valve. Turn on gas to unit and check for leaks.
Fig. 13 — Burner Assembly
—16—
Page 17
Measure Manifold Pressure (Propane Units) The main burner orifices on a propane gas unit are sized for
the unit rated input when the manifold pressure reading matches the level specified in Table 6.
Proceed as follows to adjust gas input on a propane gas unit:
1. Turn off gas to unit.
2. Remove pipe plug on manifold (see Fig. 13), then con­nect manometer at this point.
3. Turn on gas to unit.
4. Remove cover screw over regulator adjustment screw on gas valve.
5. Adjust regulator adjustment screw to the correct mani­fold pressure, as specified in Table 6. Turn adjusting screw clockwise to increase manifold pressure, or turn adjusting screw counterclockwise to decrease manifold pressure.
6. Replace cover screw.
7. Turn off gas to unit. Remove manometer from pressure tap. Replace pipe plug on gas valve, then turn on gas to unit. Check for leaks.
D. Check Burner Flame
With burner access panel removed, observe the unit heating operation. Watch the burner flames to see if they are light blue and soft in appearance, and that the flames are approxi­mately the same for each burner .Propane will have blue flame with yellow tips. See Fig. 14. Refer to Maintenance section for information on burner removal.
E. Airflow and Temperature Rise
The heating section for each size unit is designed and ap­proved for heating operation within the temperature-rise range stamped on the unit rating plate.
Table 7 shows the approved temperature-rise range for each heating input, and the air delivery cfm at various tempera­ture rises. The heating operation airflow must produce a tem­perature rise that falls within the approved range.
Refer to Indoor Airflow and Airflow Adjustments section on page 22 to adjust heating airflow when required.
Table 7 — Air Delivery (Cfm) at Indicated Temperature Rise and Rated Heating Input
HEATING
INPUT (Btuh)
TEMPERATURE RISE °F
20 25 30 35 40 45 50 55 60 65 70
40,000 1500 1200 1000 857 750 667 600 545 500 — — 60,000 2250 1800 1500 1286 1125 1000 900 818 750 692 — 90,000 — — 2250 1929 1688 1500 1350 1227 1125 1038 964
115,000 — — — 2464 2156 1917 1725 1568 1438 1327 1232
130,000 — — — 2786 2438 2167 1950 1773 1625 1500 —
NOTE: Dashed areas do not fall within the approved temperature rise range of the unit.
Fig. 14 — Monoport Burners
—17—
Page 18
F. Heating Sequence of Operation
See Fig. 15-17 and unit wiring label. On a call for heating, terminal ‘‘W’’ of the thermostat is en-
ergized, starting the induced-draft motor. When the hall­effect sensor on the induced-draft motor senses that it has reached the required speed, the burner sequence begins. This function is performed by the integrated gas control (IGC). The evaporator-fan motor is energized 45 seconds after flame is established. When the thermostat is satisfied and ‘‘W’’is deen­ergized, the burners stop firing and the evaporator-fan motor shuts off after a 45-second time-off delay.
An LED (light-emitting diode) indicator is provided on the control board to monitor operation. The control board is lo­cated by removing the burner access panel. During normal operation, the LED is continuously on. See Table 8 for error codes.
Table 8 — LED Indications
ERROR CODE LED INDICATION
Normal Operation On Hardware Failure Off Fan On/Off Delay Modified 1 Flash Limit Switch Fault 2 Flashes Flame Sense Fault 3 Flashes Four Consecutive Limit Switch Faults 4 Flashes Ignition Lockout Fault 5 Flashes Induced-Draft Motor Fault 6 Flashes Rollout Switch Fault 7 Flashes Internal Control Fault 8 Flashes
NOTES:
1. There is a 3-second pause between error code displays.
2. If more than one error code exists, all applicable error codes will be displayed in numerical sequence.
3. This chart is on the wiring diagram located inside the burner access panel.
G. Limit Switches
Normally closed limit switch (LS) completes the control cir­cuit through the thermostat R circuit. Should the leaving-air temperature rise above the maximum allowable tempera­ture, the limit switch opens and the R control circuit ‘‘breaks.’’ Any interruption in the R control circuit instantly closes the gas valve and stops gas flow to the burners and pilot. The blower motor continues to run until LS resets.
When the air temperature at the limit switch drops to the low-temperature setting of the limit switch, the switch closes and completes the R control circuit. The electric-spark igni­tion system cycles and the unit returns to normal heating operation.
H. Auxiliary Limit Switch — Rollout
The function of the switch is to close the main gas valve in the event of flame rollout. The switch is located above the main burners. When the temperature at the auxiliary switch reaches the maximum allowable temperature, the R control circuit trips, closing the gas valve and stopping gas flow to the burners. The indoor (evaporator) fan motor (IFM) and in­duced draft motor continue to run until switch is reset.
III. START UP COOLING SECTION AND MAKE ADJUSTMENTS
CAUTION:
Complete the required procedures given in the Pre-Start-Up section on page 14 before starting the unit.
Do not jumper any safety devices when operating the unit.
Do not operate the compressor when the outdoor tem­perature is below 40 F (unless accessory low-ambient kit is installed).
Do not rapid-cycle the compressor. Allow 5 minutes be­tween ‘‘on’’ cycles to prevent compressor damage.
A. Checking Cooling Control Operation
Start and check the unit for proper cooling control operation as follows:
1. Place room thermostat SYSTEM switch in OFF posi­tion. Observe that blower motor starts when FAN switch is placed in ON position and shuts down when FANswitch is placed in AUTO. position.
2. Place SYSTEM switch in COOL position and FAN switch in AUTO. position. Set cooling control below room tem­perature. Observe that compressor, condenser fan, and evaporator blower motors start. Observe that cooling cycle shuts down when control setting is satisfied. The evapo­rator fan will continue to run for 30 seconds.
3. When using an auto.-changeover room thermostat, place both SYSTEM and FAN switches in AUTO. positions. Observe that unit operates in Heating mode when tem­perature control is set to ‘‘call for heating’’ (above room temperature) and operates in Cooling mode when tem­perature control is set to ‘‘call for cooling’’ (below room temperature).
IMPORT ANT: Three-phase, scroll compressor units (582A048 and 583A030-060) are direction-oriented. These units must be checked to ensure proper compressor 3-phase power lead orientation. If not corrected within 5 minutes, the internal protector will shut off the compressor. The 3-phase power leads to the unit must be reversed to correct rotation. When turn­ing backwards, scroll compressors emit elevated noise levels, and the difference between compressor suction and dis­charge pressures may be dramatically lower than normal.
(Text continued on page 22.)
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Page 19
Fig. 15 — 208/230-1-60 Wiring Diagram, Units 582A and 583A
LEGEND
BR — Blower Relay C—Contactor CAP — Capacitor COMP — Compressor Motor CR — Combustion Relay EQUIP — Equipment FS — Fusible Link FU — Fuse GND — Ground GVR — Gas Valve Relay HS — Hall Effect Sensor HV TRAN
— High Voltage Transformer
I—Ignitor IDM — Induced-Draft Motor IFM — Indoor-Fan Motor IGC — Integrated Gas Unit
Controller
LS — Limit Switch MGV — Main Gas Valve NEC — National Electrical Code OFM — Outdoor-Fan Motor QT — Quadruple Terminal
RS — Rollout Switch ST — Thermistor Start TRAN — Transformer
Field Splice Terminal (Marked)
Terminal (Unmarked) Splice
Splice (Marked) Factory Wiring
Field Control Wiring Field Power Wiring Accessory or Optional
Wiring To Indicate Common
Potential Only, Not to Represent Wiring
NOTES:
1. If any of the original wires furnished are replaced, they must be replaced with type 90 degree C wire or its equivalent.
2. See price pages for thermostat and subbases.
3. Use 75 degree copper conductors for field installation.
4. For high speed IFM, disconnect RED wire from IGC:BM and connect BLK wire from IFM. For medium speed, disconnect RED wire from IGC:BM and connect BLU wire from IFM.
5. Models 582A018-042 and 583A024-036 have LS1 and LS2 wired in series. Models 582A048,060 and 583A042-060 have LS1 only.
—19—
Page 20
LEGEND
AHA — Adjustable Heat Anticipator BR — Blower Relay C—Contactor CAP — Capacitor COMP — Compressor Motor CR — Combustion Relay CS — Centrifugal Switch EQUIP — Equipment FS — Fusible Link FU — Fuse GND — Ground GV — Gas Valve GVR — Gas Valve Relay HS — Hall Effect Sensor HV — High Voltage I—Ignitor IDM — Induced-Draft Motor IFC — Indoor-Fan Contactor IFM — Indoor-Fan Motor IGC — Integrated Gas Unit Controller L1 — Line LS — Limit Switch LS1 — Limit Switch MGV — Main Gas Valve
NEC — National Electrical Code OFM — Outdoor-Fan Motor QT — Quadruple Terminal RS — Rollout Switch SEN — Sensor SW — Switch TRAN — Transformer
Field Splice Terminal (Marked)
Terminal (Unmarked) Splice
Splice (Marked) Factory Wiring
Field Control Wiring Field Power Wiring Accessory or Optional Wiring To Indicate Common Potential
Only, Not to Represent Wiring
NOTES:
1. If any of the original wires furnished are replaced, they must be replaced with type 90 de­gree C wire or its equivalent.
2. See price pages for thermostat and subbases.
3. Use 75 degree C copper conductors for field installation.
4. For high speed IFM, disconnect RED wire from IGC:BM and connect BLK wire from IFM. For medium speed, disconnect RED wire from IGC:BM and connect BLU wire from IFM.
Fig. 16 — 208/230-3-60 Wiring Diagram, Units 582A and 583A
—20—
Page 21
LEGEND
AHA — Adjustable Heat Anticipator BR — Blower Relay C—Contactor CAP — Capacitor COMP — Compressor Motor CR — Combustion Relay CS — Centrifugal Switch EQUIP — Equipment FS — Fusible Link FU — Fuse GND — Ground GV — Gas Valve GVR — Gas Valve Relay HS — Hall Effect Sensor HV — High Voltage I—Ignitor IDM — Induced-Draft Motor IFC — Indoor-Fan Contactor IFM — Indoor-Fan Motor IGC — Integrated Gas Unit Controller L1 — Line LS — Limit Switch LS1 — Limit Switch MGV — Main Gas Valve
NEC — National Electrical Code OFM — Outdoor-Fan Motor QT — Quadruple Terminal RS — Rollout Switch SEN — Sensor SW — Switch TRAN — Transformer
Field Splice Terminal (Marked)
Terminal (Unmarked) Splice
Splice (Marked) Factory Wiring
Field Control Wiring Field Power Wiring Accessory or Optional Wiring To Indicate Common Potential
Only, Not to Represent Wiring
NOTES:
1. If any of the original wires furnished are replaced, they must be replaced with type 90 de­gree C wire or its equivalent.
2. See price pages for thermostat and subbases.
3. Use 75 degree C copper conductors for field installation.
4. On all units for G.E. motors wire as follows: For high speed IFM, disconnect RED wire from IGC:BM and connect BLK wire from IFM. For medium speed, disconnect RED wire from IGC:BM and connect BLU wire from IFM.
Fig. 17 — 460-3-60 Wiring Diagram, Units 582A and 583A
—21—
Page 22
B. Checking and Adjustment Refrigerant Charge
The refrigerant system is fully charged with R-22 refriger­ant, tested, and factory-sealed.
NOTE: Adjustment of the refrigerant charge is not required unless the unit is suspected of not having the proper R-22 charge.
A superheat charging chart is attached to the outside of the service access panel. The chart includes the required suction line temperature at given suction line pressures and outdoor ambient temperatures.
An accurate superheat, thermocouple- or thermistor-typether­mometer, a sling psychrometer, and a gage manifold are re­quired when using the superheat charging method for evalu­ating the unit charge. Do not use mercury or small dial-type
thermometers because they are not adequate for this type of measurement.
CAUTION:
When evaluating the refrigerant charge, an indicated adjustment to the specified factory charge must always be very minimal. If a substantial adjust­ment is indicated, an abnormal condition exists some­where in the cooling system, such as insufficient airflow across either coil or both coils.
Proceed as follows:
1. Remove caps from low- and high-pressure service fittings.
2. Using hoses with valve core depressors, attach low- and high-pressure gage hoses to low- and high-pressure serv­ice fittings, respectively.
3. Start unit in Cooling mode and let unit run until sys­tem pressures stabilize.
4. Measure and record the following: a. Outdoor ambient-air temperature (F db). b. Evaporator inlet-air temperature (F wb). c. Suction-tube temperature (F) at low-side service
fitting.
d. Suction (low-side) pressure (psig).
5. Using ‘‘Cooling Charging Charts’’ compare outdoor-air temperature (F db) with the suction line pressure (psig) to determine desired system operating suction line tem­perature. See Fig. 18-30.
6. Compare actual suction-tube temperature with desired suction-tube temperature. Using a tolerance of ±3° F ,add refrigerant if actual temperature is more than 3° F higher than proper suction-tube temperature, or remove refrig­erant if actual temperature is more than 3° F lower than required suction-tube temperature.
NOTE: If the problem causing the inaccurate readings is a refrigerant leak, refer to Check for Refrigerant Leaks section on page 15.
C. Indoor Airflow and Airflow Adjustments
CAUTION:
For cooling operation, the recommended airflow is 350 to 450 cfm for each 12,000 Btuh of rated cooling capacity. For heating operation, the airflow must produce a temperature rise that falls within the range stamped on the unit rating plate.
Table 7 shows the temperature rise at various airflow rates. Tables 9 and 10 show both heating and cooling airflows at various external static pressures. Refer to these tables to de­termine the airflow for the system being installed. See Tables 11A and 11B for wet coil pressure drop.
NOTE: Be sure that all supply- and return-air grilles are open, free from obstructions, and adjusted properly.
WARNING:
Shut off gas supply then disconnect elec­trical power to the unit before changing blower speed. Electrical shock can cause personal injury or death.
Airflow can be changed by changing the lead connections of the blower motor.
Unit 582A two- or three-speed motors (except size 030) are factory wired for low speed operation. Unit 582A030 is fac­tory wired for medium speed.
All 583A units are factory wired for low speed and may need to be wired for medium or high speed in the field.
For 208/230-v The motor leads are color-coded as follows:
3-SPEED 2-SPEED
black = high speed black = high speed blue = medium speed red = low speed red = low speed
To change the speed of the blower motor (BM), remove the fan motor speed leg lead from the blower relay (BR). This wire is attached to terminal BM for single-phase and 3-phase units. To change the speed, remove and replace with lead for desired blower motor speed. Insulate the removed lead to avoid
contact with chassis parts.
For 460-v GE Motors The motor leads are color coded as follows:
3-SPEED 2-SPEED
black = high black = high violet = jumper blue = jumper orange = medium red = low red = low
To change the speed of the blower motor (BM), remove fan motor speed lead from the blower relay (BR) and replace with the lead for the desired blower motor speed. The motor speed lead is attached to terminal BM. For low and medium speeds black must be connected to the jumper wire. Insulate re- moved lead end to avoid contact with chassis parts. To select high speed on 460-v GE motors, separate the black (female quick connect [QC]) from the jumper lead (male quick con­nect [QC]) and connect the black lead to the BR. Insulate the
jumper to avoid contact with any chassis parts.
—22—
Page 23
Fig. 18 — Cooling Charging Chart,
582A018 Units
Fig. 19 — Cooling Charging Chart,
582A024 Units
Fig. 20 — Cooling Charging Chart,
582A030 Units
Fig. 21 — Cooling Charging Chart,
582A036 Units
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Page 24
Fig. 21 — Cooling Charging Chart,
582A042 Units
Fig. 24 — Cooling Charging Chart,
582A060 Units
Fig. 23 — Cooling Charging Chart,
582A048 Units
—24—
Page 25
Fig. 25 — Cooling Charging Chart,
583A024 Units
Fig. 26 — Cooling Charging Chart,
583A030 Units
Fig. 27 — Cooling Charging Chart,
583A036 Units
Fig. 28 — Cooling Charging Chart,
583A042 Units
—25—
Page 26
Fig. 29 — Cooling Charging Chart,
583A048 Units
Fig. 30 — Cooling Charging Chart,
583A060 Units
—26—
Page 27
Table 9 — Dry Coil Air Delivery* — Horizontal and Downflow Discharge —
Unit 582A018-060 (Deduct 10% for 208 Volts)
230 AND 460 VOLT
Unit
582A
Motor Speed
External Static Pressure (in. wg)
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
018
Low
Watts 227 212 196 177 165 153 — — — — — Cfm 1082 1016 929 796 668 428 — — — — —
Med
Watts ————————— — — Cfm ————————— — —
High
Watts 287 275 266 253 242 234 226 — — — — Cfm 1270 1179 1054 932 780 633 372 — — — —
024
Low
Watts 280 275 270 267 264 262 260 — — — — Cfm 950 880 825 750 670 580 400 — — — —
Med
Watts 380 375 365 360 355 350 344 335 312 — — Cfm 1220 1150 1090 1025 970 860 760 620 450 — —
High
Watts 485 475 470 460 455 445 437 430 415 385 — Cfm 1475 1440 1350 1275 1200 1125 1025 925 750 400 —
030
Low
Watts 280 275 270 267 264 262 260 — — — — Cfm 950 880 825 750 670 580 400 — — — —
Med
Watts 380 375 365 360 355 350 344 335 312 — — Cfm 1220 1150 1090 1025 970 860 760 620 450 — —
High
Watts 485 475 470 460 455 445 437 430 415 385 — Cfm 1475 1440 1350 1275 1200 1125 1025 925 750 400 —
036
Low
Watts 576 566 556 538 512 497 481 466 450 435 — Cfm 1430 1403 1365 1263 1157 1068 973 900 827 704 —
Med
Watts 680 671 660 624 604 620 602 558 534 512 496 Cfm 1720 1630 1538 1439 1346 1267 1167 1126 1018 858 781
High
Watts 810 800 790 782 766 742 723 709 688 661 627 Cfm 1800 1745 1660 1600 1547 1465 1360 1270 1163 967 876
042
Low
Watts — 675 660 650 640 630 620 610 595 580 — Cfm — 1454 1327 1326 1275 1204 1142 1081 995 918 —
Med
Watts — 886 855 825 795 778 765 750 735 718 700 Cfm — 1515 1458 1406 1350 1285 1224 1163 1091 1013 932
High
Watts — — — 1000 950 925 910 890 875 855 833 Cfm — — — 1551 1488 1424 1360 1296 1233 1148 1071
048
Low
Watts — 727 712 700 688 666 644 622 595 569 — Cfm — 1678 1639 1600 1561 1500 1440 1379 1289 1198 —
Med
Watts — 853 836 821 807 782 756 730 699 667 640 Cfm — 1914 1870 1825 1780 1711 1642 1573 1470 1367 1270
High
Watts — 979 959 943 927 897 868 838 802 766 730 Cfm — 2150 2100 2050 2000 1922 1845 1767 1600 1535 1419
060
Low
Watts 1033 949 864 836 822 808 772 737 705 674 642 Cfm 2105 2057 2009 1943 1909 1876 1823 1770 1698 1627 1531
Med
Watts 1084 1054 1024 994 971 955 928 897 867 835 803 Cfm 2318 2248 2179 2110 2058 2000 1932 1885 1829 1740 1638
High
Watts — — 1184 1152 1120 1102 1084 1056 1029 997 965 Cfm — — 2349 2278 2207 2124 2041 2000 1960 1853 1745
*Air delivery values are without air filter and are for dry coil. (See Table 11A— Wet Coil Pressure Drop
table.)
NOTE: Deduct field-supplied air filter pressure drop and wet coil pressure drop to obtain external static pressure available for ducting.
—27—
Page 28
Table 10 — Dry Coil Air Delivery* — Horizontal and Downflow Discharge —
Unit 583A024-060 (Deduct 10% for 208 Volts)
230 AND 460 VOLT
Unit
583A
Motor
Speed
External Static Pressure (in. wg)
0.00 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
024
Low
Watts 281282281278276— ————— Cfm 899828757691619— —————
Med
Watts — — — 375 370 363 357 352 — — — Cfm — — — 969 897 824 744 649 — — —
High
Watts —————468457444431423— Cfm —————994913826730620—
030
Low
Watts 246244243241——————— Cfm 982860808736———————
Med
Watts 343339336332328322317———— Cfm 1233 1170 1109 1038 953 855 754 ————
High
Watts ————441432421410400—— Cfm ————1202 1111 1021 929 826 — —
036
Low
Watts — 470 458 445 430 415 399 384 — — — Cfm — 1463 1406 1344 1273 1188 1091 983 — — —
Med
Watts — — 514 501 487 471 455 438 422 — — Cfm — — 1497 1428 1348 1255 1152 1042 929 — —
High
Watts — — — 646 636 626 614 602 589 — — Cfm — — — 1491 1412 1325 1228 1120 1003 — —
042
Low
Watts 643 625 614 605 593 574 549 518 485 454 — Cfm 1626 1614 1579 1532 1478 1421 1361 1295 1218 1120 —
Med
Watts ————726695661625591561540 Cfm ————1731 1672 1610 1541 1456 1345 1193
High
Watts ———————790766742713 Cfm ———————1699 1602 1494 1367
048
Low
Watts 614 588 577 572 566 556 539 517 491 — — Cfm 1591 1549 1518 1490 1460 1421 1372 1312 1242 — —
Med
Watts 778 756 738 719 699 676 650 623 596 572 555 Cfm 1854 1837 1804 1759 1705 1643 1577 1508 1440 1375 1315
High
Watts ————896862829800775752728 Cfm ————1956 1879 1797 1709 1615 1514 1406
060
Low
Watts 834 813 782 746 712 680 652 626 — — — Cfm 2016 1955 1898 1840 1781 1717 1646 1566 — — —
Med
Watts 941 889 851 822 797 772 745 714 679 639 — Cfm 2379 2233 2124 2038 1964 1892 1814 1727 1626 1511 —
High
Watts — — 960 949 920 883 845 812 783 753 — Cfm — — 2497 2224 2075 1986 1915 1831 1721 1588 —
*Air delivery values are without air filter and are for dry coil. (See Table 11B — Wet Coil Pressure Drop
table.)
NOTE: Deduct field-supplied air filter pressure drop and wet coil pressure drop to obtain external static pressure available for ducting.
—28—
Page 29
Table 11A — Wet Coil Pressure Drop — 582A
UNIT SIZE
582A
AIRFLOW
(cfm)
PRESSURE DROP
(in. wg)
018
500 0.049 600 0.070 700 0.095
024
700 0.077 800 0.100 900 0.127
030
900 0.065
1000 0.080
1100 0.097
036
1100 0.084 1200 0.100 1300 0.177
042
1300 0.103 1400 0.120 1500 0.138
048
1500 0.088 1600 0.100 1700 0.113
060
1900 0.108 2000 0.120 2100 0.132
Table 11B — Wet Coil Pressure Drop — 583A
UNIT SIZE
583A
AIRFLOW
(cfm)
PRESSURE DROP
(in. wg)
024
700 0.0535 800 0.067 900 0.123
030
900 0.0687
1000 0.083
1100 0.150
036
1100 0.084 1200 0.100 1300 0.177
042
1300 0.099 1400 0.177 1500 0.204
048
1500 0.199 1600 0.137 1700 0.156
060
1900 0.108 2000 0.120 2100 0.132
D. Cooling Sequence of Operation
With the room thermostat SYSTEM switch in the COOL po­sition and the FAN switch in the AUTO. position, the cooling sequence of operation is as follows:
When the room temperature rises to a point that is slightly above the cooling control setting of the thermostat, the ther­mostat completes the circuit between thermostat terminal R to terminals Y and G. These completed circuits through the thermostat connect contactor coil (C) (through unit wire Y) and blower relay coil (BR) (through unit wire G) across the 24-v secondary of transformer (TRAN).
The normally open contacts of energized contactor (C) close and complete the circuit through compressor motor (COMP) to condenser (outdoor) fan motor (OFM). Both motors start instantly.
The set of normally open contacts of energized relay BR close and complete the circuit through evaporator blower (indoor) fan motor (IFM).
NOTE: Once the compressor has started and then has stopped, it should not be started again until 5 minutes have elapsed.
The cooling cycle remains ‘‘on’’ until the room temperature drops to point that is slightly below the cooling control set­ting of the room thermostat. At this point, the thermostat ‘‘breaks’’the circuit between thermostat terminal R to termi­nals Y and G. These open circuits deenergize contactor coil C and relay coil BR. The condenser and compressor motors stop. After a 30-second delay, the blower motor stops. The unit is in a ‘‘standby’’ condition, waiting for the next ‘‘call for cool­ing’’ from the room thermostat.
MAINTENANCE
To ensure continuing high performance, and to minimize the possibility of premature equipment failure, periodic mainte­nance must be performed on this equipment. This combina­tion heating/cooling unit should be inspected at least once each year by a qualified service person. To troubleshoot heating or cooling of units, refer to tables at the back of the book.
NOTE TO EQUIPMENT OWNER: Consult your local dealer about the availability of a maintenance contract.
WARNING:
The ability to properly perform mainte­nance on this equipment requires certain expertise, me­chanical skills, tools, and equipment. If you do not pos­sess these, do not attempt to perform any maintenance on this equipment other than those procedures recom­mended in the User’s Manual. FAILURETO HEED THIS WARNING COULD RESULTIN SERIOUS PERSONAL INJURY AND POSSIBLE DAMAGE TO THIS EQUIPMENT.
WARNING:
Failure to follow these warnings could re­sult in serious personal injury:
1. Turn off gas supply, then turn off electrical power to
the unit before performing any maintenance or serv­ice on the unit.
2. Use extreme caution when removing panels and parts.
As with any mechanical equipment, personal injury can result from sharp edges, etc.
3. Never place anything combustible either on, or in con-
tact with, the unit.
4. Should overheating occur, or the gas supply fail to
shut off, shut off the external main manual gas valve to the unit, then shut off the electrical supply.
CAUTION:
Errors made when reconnecting wires may cause improper and dangerous operation. Label all wires prior to disconnection when servicing.
The minimum maintenance requirements for this equipment are as follows:
1. Inspect air filter(s) each month. Clean or replace when necessary.
2. Inspect indoor coil, drain pan, and condensate drain each cooling season for cleanliness. Clean when necessary.
3. Inspect blower motor and wheel for cleanliness and check lubrication each heating and cooling season. Clean when necessary.For first heating season, inspect blower wheel bimonthly to determine proper cleaning frequency.
—29—
Page 30
4. Check electrical connections for tightness and controls for proper operation each heating and cooling season. Service when necessary.
5. Check and inspect heating section before each heating season. Clean and adjust when necessary.
6. Check flue hood and remove any obstructions if necessary.
I. AIR FILTER
CAUTION:
Never operate the unit without a suit­able air filter in the return-air duct system. Always re­place the filter with the same dimensional size and type as originally installed. See Tables 1 and 2 for recom­mended filter sizes.
Inspect air filter(s) at least once each month and replace (throwaway-type) or clean (cleanable-type) at least twice dur­ing each heating and cooling season or whenever the filter(s) becomes clogged with dust and lint.
II. EVAPORATOR BLOWER AND MOTOR NOTE: All motors are prelubricated. Do not attempt to lu-
bricate these motors. For longer life, operating economy, and continuing efficiency,
clean accumulated dirt and grease from the blower wheel and motor annually.
WARNING:
Turn off the gas supply, then disconnect and tag electrical power to the unit before cleaning and lubricating the blower motor and wheel. Failure to ad­here to this warning could cause personal injury or death.
To clean the blower motor and wheel:
1. Remove and disassemble blower assembly as follows: a. Remove unit access panel. b. Disconnect motor lead from blower relay (BR).
Disconnect yellow lead from terminal L2 of the contactor.
c. On all units remove blower assembly from unit. Re-
move screws securing blower to blower partition and slide assembly out. Be careful not to tear insulation in blower compartment.
d. Ensure proper reassembly by marking blower wheel
and motor in relation to blower housing before disassembly.
e. Loosen setscrew(s) that secures wheel to motor shaft,
remove screws that secure motor mount brackets to housing, and slide motor and motor mount out of housing.
2. Remove and clean blower wheel as follows: a. Ensure proper reassembly by marking wheel
orientation.
b. Lift wheel from housing. When handling and/or clean-
ing blower wheel, be sure not to disturb balance weights (clips) on blower wheel vanes.
c. Remove caked-on dirt from wheel and housing with
a brush. Remove lint and/or dirt accumulations from wheel and housing with vacuum cleaner, using soft brush attachment. Remove grease and oil with mild solvent.
d. Reassemble wheel into housing.
e. Reassemble motor into housing. Be sure setscrews are
tightened on motor shaft flats and not on round part of shaft.
f. Reinstall unit access panel.
3. Restore electrical power, then gas supply to unit. Start unit and check for proper blower rotation and motor speeds during heating and cooling cycles.
III. 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 3 screws holding the blower housing to the flue collector box cover (see Fig. 31).
3. Remove the 12 screws holding the flue collector box cover (Fig. 31) to the heat exchanger assembly.Inspect the heat exchangers.
4. Clean all surfaces as required using the wire brush.
IV. 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 assembly. Shine a flashlight into opening to inspect wheel. If cleaning is re­quired, remove motor and wheel as follows:
1. Remove unit access panel. (See Fig. 32.)
2. Remove the 7 screws that attach induced-draft motor mounting plate to blower housing. (See Fig. 31.)
3. Slide the motor and blower wheel assembly out of the blower housing. (See Fig. 33.) Clean the blower wheel. If additional cleaning is required, continue with Steps 4 and 5.
4. To remove blower, remove 2 setscrews. (See Fig. 33.)
5. To remove motor and cooling fan assembly, remove 4 screws that hold blower housing to mounting plate.
6. To reinstall, reverse the procedure outlined above.
V. LIMIT SWITCH
Remove unit access panel. Limit switch is located on the blower partition.
Fig. 31 — Blower Housing and Flue Collector Box
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Page 31
VI. BURNER IGNITION
Unit is equipped with a direct spark ignition 100% lockout system. Ignition module is located in the control box. Module contains a self-diagnostic LED. During servicing, refer to la­bel diagram for LED interpretation.
If lockout occurs, unit may be reset by either momentarily interrupting power supply to unit, or turning selector switch to OFF position at the thermostat.
VII. 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 servicing gas train, do not hit or
plug orifice spuds.
A. Removal of Gas Train
1. Shut off manual gas valve.
2. Shut off power to unit.
3. Remove unit access panel. (See Fig. 32.)
4. Disconnect gas piping at unit gas valve.
5. Remove wires connected to gas valve. Mark each wire.
6. Remove ignitor and sensor wires at the ignitor module.
7. Remove the mounting screw that attaches the burner rack to the basepan. (See Fig. 31.)
8. Slide the burner rack out of the unit. (See Fig. 31 and 34.)
9. To reinstall, reverse the procedure outlined above.
VIII. CONDENSER COIL, EVAPORATOR COIL, AND CONDENSATE DRAIN PAN
Inspect the condenser coil, evaporator coil, and condensate drain pan at least once each year.
The coils are easily cleaned when dry; therefore, inspect and clean the coils either before or after each cooling season. Remove all obstructions, including weeds and shrubs, that interfere with the airflow through the condenser coil. Straighten bent fins with a fin comb. If coated with dirt or lint, clean the coils with a vacuum cleaner,using the soft brush
Fig. 32 — Unit Access Panel
BLOWER HOUSING
2 SETSCREWS (HIDDEN)
Fig. 33 — Removal of Motor and Blower Wheel
Fig. 34 — Burner Rack Removed
—31—
Page 32
attachment. Be careful not to bend the fins. If coated with oil or grease, clean the coils with a mild detergent-and-water so­lution. Rinse coils with clear water, using a garden hose. Be careful not to splash water on motors, insulation, wiring, or air filter(s). For best results, spray condenser coil fins from inside to outside the unit. On units with an outer and inner condenser coil, be sure to clean between the coils. Be sure to flush all dirt and debris from the unit base.
Inspect the drain pan and condensate drain line when in­specting the coils. Clean the drain pan and condensate drain by removing all foreign matter from the pan. Flush the pan and drain tube with clear water. Do not splash water on the insulation, motor, wiring, or air filter(s). If the drain tube is restricted, clear it with a ‘‘plumbers snake’’ or similar probe device. Ensure that the auxiliary drain port above the drain tube is also clear.
IX. CONDENSER FAN
CAUTION:
Keep the condenser fan free from all ob­structions to ensure proper cooling operation. Never place articles on top of the unit. Damage to unit may result.
1. Remove 6 screws holding condenser grille and motor to top cover.
2. Turn motor/grille assembly upside down on top cover to expose the fan blade.
3. Inspect the fan blades for cracks or bends.
4. If fan needs to be removed, loosen the setscrew and slide the fan off the motor shaft.
5. When replacing fan blade, position blade so that the hub is
1
⁄8in. away from the motor end (1⁄8in. of motor shaft
will be visible).
6. Ensure that setscrew engages the flat area on the mo­tor shaft when tightening.
7. Replace grille.
X. ELECTRICAL CONTROLS AND WIRING
Inspect and check the electrical controls and wiring annu­ally. Be sure to turn off the gas supply, and then the electrical
power to the unit.
Remove access panel to locate all the electrical controls and wiring. Check all electrical connections for tightness. Tighten all screw connections. If any smoky or burned connections are noticed, disassemble the connection, clean all the parts,
restrip the wire end and reassemble the connection properly and securely.
After inspecting the electrical controls and wiring, replace the access panel. Start the unit, and observe at least one com­plete heating cycle and one complete cooling cycle to ensure proper operation. If discrepancies are observed in either or both operating cycles, or if a suspected malfunction has oc­curred, check each electrical component with the proper elec­trical instrumentation. Refer to the unit wiring label when making these checkouts.
NOTE: Refer to the heating and/or cooling sequence of op­eration in this publication as an aid in determining proper control operation.
XI. REFRIGERANT CIRCUIT
Inspect all refrigerant tubing connections and the unit base for oil accumulations annually. Detecting oil generally indi­cates a refrigerant leak.
If oil is detected or if low cooling performance is suspected, leak-test all refrigerant tubing using an electronic leak­detector, halide torch, or liquid-soap solution. If a refrigerant leak is detected, refer to Check for Refrigerant Leaks section on page 15.
If no refrigerant leaks are found and low cooling perfor­mance is suspected, refer to Checking and Adjusting Refrig­erant Charge section on page 22.
XII. GAS INPUT
The gas input does not require checking unless improper heat­ing performance is suspected. If a problem exists, refer to Start-Up section on page 15.
XIII. EVAPORATOR AIRFLOW
The heating and/or cooling airflow does not require checking unless improper performance is suspected. If a problem ex-
ists, be sure that all supply- and return-air grilles are open and free from obstructions, and that the air filter is clean. When
necessary, refer to Indoor Airflow and Airflow Adjustments section on page 22 to check the system airflow.
XIV. METERING DEVICE — ACUTROL™ DEVICE
This metering device is a fixed orifice and is located in the header to the evaporator coil.
XV. LIQUID LINE STRAINER
The liquid line strainer (to protect metering device) is made of wire mesh and located in the liquid line on the inlet side of the metering device.
—32—
Page 33
TROUBLESHOOTING
Cooling
SYMPTOM CAUSE REMEDY
Compressor and condenser fan will not start.
Power failure Call power company. Fuse blown or circuit breaker tripped Replace fuse or reset circuit breaker. Defective thermostat, contactor, transformer,
or control relay
Replace component.
Insufficient line voltage Determine cause and correct. Incorrect or faulty wiring Check wiring diagram and rewire correctly. Thermostat setting too high Lower thermostat setting below room temperature.
Compressor will not start but condenser fan runs.
Faulty wiring or loose connections in compressor circuit
Check wiring and repair or replace.
Compressor motor burned out, seized, or internal overload open
Determine cause. Replace compressor.
Defective run/start capacitor, overload, start relay
Determine cause and replace.
One leg of 3-phase power dead Replace fuse or reset circuit breaker.
Determine cause.
Three-phase scroll compressor (582A048 and 583A030-060) makes excessive noise, and there may be a low pressure differential.
Scroll compressor is rotating in the wrong direction
Correct the direction of rotation by reversing the 3-phase power leads to the unit. Shut down unit to allow pressures to equalize.
Compressor cycles (other than normally satisfying thermostat).
Refrigerant overcharge or undercharge Recover refrigerant, evacuate system, and
recharge to capacities shown on nameplate. Defective compressor Replace and determine cause. Insufficient line voltage Determine cause and correct. Blocked condenser Determine cause and correct. Defective run/start capacitor, overload
or start relay
Determine cause and replace. Defective thermostat Replace thermostat.
Faulty condenser-fan motor or capacitor Replace. Restriction in refrigerant system Locate restriction and remove.
Compressor operates continuously.
Dirty air filter Replace filter. Unit undersized for load Decrease load or increase unit size. Thermostat set too low Reset thermostat. Low refrigerant charge Locate leak, repair, and recharge. Leaking valves in compressor Replace compressor. Air in system Recover refrigerant, evacuate system, and recharge. Condenser coil dirty or restricted Clean coil or remove restriction.
Excessive head pressure.
Dirty air filter Replace filter. Dirty condenser coil Clean coil. Refrigerant overcharged Recover excess refrigerant. Air in system Recover refrigerant, evacuate system, and recharge. Condenser air restricted or air short-cycling Determine cause and correct.
Head pressure too low.
Low refrigerant charge Check for leaks, repair and recharge. Compressor valves leaking Replace compressor. Restriction in liquid tube Remove restriction.
Excessive suction pressure.
High heat load Check for source and eliminate. Compressor valves leaking Replace compressor. Refrigerant overcharged Recover excess refrigerant.
Suction pressure too low.
Dirty air filter Replace filter. Low refrigerant charge Check for leaks, repair and recharge. Metering device or low side restricted Remove source of restriction. Insufficient evaporator airflow Increase air quantity. Check filter — replace if
necessary. Temperature too low in conditioned area Reset thermostat. Outdoor ambient below 40 F Install low-ambient kit. Field-installed filter-drier restricted Replace.
—33—
Page 34
Heating
SYMPTOM CAUSE REMEDY
Burners will not ignite. Water in gas line Drain. Install drip leg.
No power to furnace Check power supply fuses, wiring, or circuit breaker. No 24-v power supply to control
circuit
Check transformer. NOTE: Some transformers have internal overcurrent
protection that requires a cool-down period to reset. Miswired or loose connections Check all wiring and wirenut connections. Burned-out heat anticipator in
thermostat
Replace thermostat. Broken thermostat wire Run continuity check. Replace wire if necessary.
Misaligned spark electrodes Check flame ignition and sense electrode positioning.
Adjust as necessary. No gas at main burners 1. Check gas line for air. Purge as necessary.
NOTE: After purging gas line of air, wait at least 5 minutes for any gas to dissipate before attempt­ing to light unit.
2. Check gas valve.
Inadequate heating. Dirty air filter Clean or replace filter as necessary.
Gas input to furnace too low Check gas pressure at manifold. Match with that on
unit nameplate. Unit undersized for application Replace with proper unit or add additional unit. Restricted airflow Clean or replace filter. Remove any restriction. Blower speed too low Use faster speed tap if available, or install alternate
motor. Limit switch cycles main burners Check rotation of blower, thermostat heat antic-
ipator settings, temperature rise of unit. Adjust as
necessary.
Poor flame characteristics. Incomplete combustion results in:
Aldehyde odors, carbon monox­ide, sooting flame, floating flame
1. Tighten all screws around burner compartment.
2. Cracked heat exchanger. Replace.
3. Unit overfired. Reduce input (change orifices or adjust gas line or manifold pressure).
4. Check burner alignment.
—34—
Page 35
LED Troubleshooting — Error Code
SYMPTOM CAUSE REMEDY
Hardware failure. (LED OFF)
Loss of power to control module (IGC).
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.
Limit switch fault. (LED 2 flashes)
High temperature limit switch is open.
Check the operation of the indoor (evaporator) fan motor. Ensure that the supply-air temperature rise is in accordance with the range on the unit nameplate.
Flame sense fault. (LED 3 flashes)
The IGC sensed flame that should not be present.
Reset unit. If problem persists, replace control board.
4 consecutive limit switch faults. (LED 4 flashes)
Inadequate airflow to unit. Check operation of indoor (evaporator) fan motor and
that supply-air temperature rise agrees with range on unit nameplate information.
Ignition lockout. (LED 5 flashes)
Unit unsuccessfully attempted ignition for 15 minutes.
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.
Induced-draft motor fault. (LED 6 flashes)
IGC does not sense that induced­draft motor is operating.
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 fault. (LED 7 flashes)
Rollout switch has opened. Rollout switch will automatically reset, but IGC will
continue to lockout unit. Check gas valve operation. Ensure that induced-draft blower wheel is properly secured to motor shaft. Reset unit at unit disconnect.
Internal control fault. (LED 8 flashes)
Microprocessor has sensed an error in the software or hardware.
If error code is not cleared by resetting unit power, replace the IGC.
WARNING:
If the IGC must be replaced, be sure to ground yourself to dissipate any electrical charge that may be present before handling new control board. The IGC is sensitive to static electricity and may be damaged if the necessary precautions are not taken.
IMPORTANT: Refer to Heating troubleshooting chart for additional trouble­shooting analysis.
LEGEND
IGC — Integrated Gas Unit Controller LED — Light-Emitting Diode
—35—
Page 36
Page 37
Page 38
SERVICE TRAINING
Packaged Service Training programs are an excellent way to increase your knowledge of the equip-
ment 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 1-800-962-9212
[ ] Packaged Service Training
[ ] Classroom Service Training
Copyright 1999 Bryant Heating & Cooling Systems CATALOG NO. 5358-203
Page 39
Page 40
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)
M VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT M VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTALLATION INSTRUCTIONS M CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS M CHECK GAS PIPING FOR LEAKS M CHECK THAT INDOOR (EVAPORATOR) AIR FILTER IS CLEAN AND IN PLACE M VERIFY THAT UNIT INSTALLATION IS LEVEL M CHECK FAN WHEEL AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND SETSCREW
TIGHTNESS
III. START-UP
ELECTRICAL
SUPPLY VOLTAGE L1-L2
L2-L3 L3-L1 COMPRESSOR AMPS L1 L2 L3 COMPRESSOR AMPS L1 L2 L3 INDOOR (EVAPORATOR) FAN AMPS
TEMPERATURES
OUTDOOR (CONDENSER) AIR TEMPERATURE
DB
RETURN-AIR TEMPERATURE
DB WB
COOLING SUPPLY AIR
DB WB
GAS HEAT SUPPLY AIR
PRESSURES
GAS INLET PRESSURE
IN. WG
GAS MANIFOLD PRESSURE
IN. WG
REFRIGERANT SUCTION
PSIG SUCTION LINE TEMP*
REFRIGERANT DISCHARGE PSIG DISCHARGE TEMP†
M VERIFY REFRIGERANT CHARGE USING CHARGING TABLES
M VERIFY THAT 3-PHASE SCROLL COMPRESSOR ROTATING IN CORRECT DIRECTION (582A048 AND
583A030-060)
*Measured at suction inlet to compressor. †Measured at liquid line leaving condenser.
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CUT ALONG DOTTED LINE CUT ALONG DOTTED LINE
Copyright 1999 Bryant Heating & Cooling Systems CATALOG NO. 5358-203
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