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Number One
AirConditbning
Maker
^^2 Division of
Cattiet Corporation
Carrier Parkway • Syracuse NY 53221
Centrifugal Fan Condensing Unit
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SAFETY CONSIDERATIONS......................... |
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INSTAELATION................................................ |
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Step 1 — Check Equipment and Jobsite ... |
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UNPACKAGE UNIT.................................... |
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INSPECT EQUIPMENT............................... |
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• COMPLETE OR CONSIDER SYSTEM |
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REQUIREMENTS......................................... |
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Step 2 — Unit Support........................................ |
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• FLOORS AND FLOOR JOISTS.................. |
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TO SUSPEND UNIT...................................... |
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Step 3 — Make Ductwork Connections ... |
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CONNECT SUPPLY AIR |
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DUCTWORK................................................. |
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Step 4 — Provide for Unit Condensate |
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Disposal............................................... |
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BASEPAN DRAIN ........................................ |
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Step 5 — Make Electrical Connections . . . |
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• BRING LINE POWER LEADS |
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INTO UNIT.................................................... |
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CONNECTCONTROL POWER |
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WIRING.......................................................... |
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Step 6 — Make Piping Connections.................. |
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CONNECT REFRIGERANT LINES........... |
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START-UP........................................................... |
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SERVICE ............................................................ |
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SAFETY CONSIDERATIONS
Installation and servicing of air conditioning equipment can be hazardous due to system pressure and electrical components. Only trained and quali fied service personnel should install, repair or service air conditioning equipment.
Untrained personnel can perform basic mainten ance functions of cleaning coils and filters and replacing filters. All other operations should be performed by trained service personnel. When working on air conditioning equipment, observe precautions in the literature, tags and labels attached to the unit and other safety precautions that may apply.
Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for unbrazing operations.
INSTALLATION
General — Install the 38JB condensate unit indoors. Provide access for cleaning and servicing as shown in Fig. 1. Use field-supplied condenser air filters fpr proper unit operation.
Step 1 — Check Equipment and Jobsite
UNPACKAGE UNIT — Move to final location. Use care as unit is heavy and awkward to handle. Carefully remove from carton so as not to damage unit.
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Table 1 — Physical Data |
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UNIT38JB |
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016 |
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024 |
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OPERATING WEIGHT (lb) |
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1060 |
1370 |
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REFRIGERANT |
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R-22 |
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Charge (lb) |
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13 |
9* |
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COMPRESSOR(S) |
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Recip Hermeticf |
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Oil, PP33-2 (pt). See Note |
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10 |
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10 (ea) |
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CONDENSER AIR FANS |
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Centrifugal, Belt Drive |
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Motor, Hp...Rpm |
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5 1750 |
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Motor Frame (NEMA) |
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213T |
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Motor Pulley Pitch Diameter |
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RR-fiR |
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Range (in.) |
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7 8 |
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Fan Pulley Pitch Diameter (in ) |
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Belt; No —Designation |
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1-B57 |
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Belt Pitch Length (in ) |
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57 |
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Fan Factory Setting (Rpm) |
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1370 |
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Fan Range (Rpm) |
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1220-1460 |
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Max Allowable Fan Speed (Rpm) |
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1600t |
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Speed change per 1/2 turn of |
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movable motor pulley flange |
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Movable pulley factory setting |
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1-1 /9 |
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full turns open |
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Max allowable full turns from |
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A |
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closed position |
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PRESSURESTAT |
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Factory Settings; psig |
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High Cutout |
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375 ± 5 |
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428 ± 4 |
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Low Cutout |
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29 ± 5 |
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29 ± 2 |
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Low Cut-in |
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39 ± 3 |
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39 ± 3 |
‘Each system |
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tone on 016; 2 on 024 |
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tNot attainable with factory-supplied pulley |
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NOTE Approved vendors and designations — |
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Suniso 3GS |
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Sun Oil Company |
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Texaco, Inc .. |
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Capella Bl |
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E I DuPont Company |
DuPont Synthetic Refrigeration Oil |
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© Carrier Corporation 1980
^Issa
Fig. 1 — Dimensions
INSPECT EQUIPMENT — File claim with shipping company if equipment is damaged or incomplete.
COMPLETE OR CONSIDER SYSTEM RE QUIREMENTS before installing the 38JB centri fugal fan condensing unit.
Consult local building codes and National Elec trical Code (NEC) for installation requirements.
TO SUSPEND UNIT — Remove plug buttons from the clearance holes in the top panel. See Fig. 1. Insert field-supplied 1 / 2-in. hanger rods in clearance holes and screw into weld nuts in bottom frame. Screw each rod thru bottom frame and secure with a lock washer and locknut on underside of unit.
Step 2 — Unit Support
FLOORS AND FLOOR JOISTS of existing build ings may require reinforcement. Follow applicable codes requiring weight distribution. Refer to Table 1, Fig. 1 and Fig. 2.
Step 3 — Make Ductwork Connections
CONNECT SUPPLY AIR DUCTWORK — Con nect to unit openings with flexible connections. Secure ducts to building structure to prevent vibra tion. Insulate ducts with 1-in. thick fiberglass and a
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