Page 2 - UNIT
REQUIRED CLEARANCES TO COMBUSTIBLE MATERIAL — in. (mm)Unit Top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 (356)Duct Side of Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 (51)Side Opposite Ducts . . . . . . . . . . . . . . . . . . . . . . . . 14 (356)Bottom of...
Page 3 - Fig. 3 — Dimensions Units 50SS018-042 with Optional Base Rail
REQUIRED CLEARANCES TO COMBUSTIBLE MATERIAL — in. (mm)Unit Top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 (356)Duct Side of Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 (51)Side Opposite Ducts . . . . . . . . . . . . . . . . . . . . . . . . 14 (356)Bottom of...
Page 5 - Fig. 5 — Dimensions Units 50SS048,060 With Optional Base Rail
REQUIRED CLEARANCES TO COMBUSTIBLE MATERIAL — in. (mm)Unit Top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 (356)Duct Side of Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 (51) Side Opposite Ducts . . . . . . . . . . . . . . . . . . . . . . . . . . . 14...
Page 7 - Fig. 7 — Dimensions Units 50SX024-036 With Optional Base Rail
REQUIRED CLEARANCES TO COMBUSTIBLE MATERIAL — in. (mm)Unit Top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 (356)Duct Side of Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 (51)Side Opposite Ducts . . . . . . . . . . . . . . . . . . . . . . . . 14 (356)Bottom of...
Page 10 - Fig. 9 — Dimensions Units 50SX042-060 With Optional Base Rail
Fig. 9 — Dimensions; Units 50SX042-060 With Optional Base Rail 10
Page 12 - Fig. 10 — Roof Curb Dimensions
PART NUMBER ‘‘A’’ FLAT CURB CPRFCURB001A00 8 9 [203] CPRFCURB002A00 11 9 [279] CPRFCURB003A00 14 9 [356] NOTES:1. Roof curb must be set up for unit being installed.2. Seal strip must be applied as required for unit being installed.3. Dimensions in [ ] are in millimeters. 4. Roof curb is made of 16 g...
Page 14 - Fig. 12 — Suggested Rigging for Units with Optional Base Rail
NOTICE TO RIGGERS Hook rigging shackles through holes in lifting brackets, as shown inDetail ‘‘A,’’ lifting brackets to be centered around the unit center of gravity. Usewood top skid when rigging, to prevent rigging straps from damaging unit. All panels must be in place when rigging. UNIT SIZE 50SS...
Page 16 - Step 5 — Select and Install Ductwork —; Table 3 — Minimum Airflow for Safe Electric; SIZE; Fig. 13 — Area Not To Be Drilled; Fig. 14 — Typical Installation
Step 5 — Select and Install Ductwork — The de- sign and installation of the duct system must be in accor-dance with the standards of the NFPA (National Fire Protec-tion Association) for installation of nonresidence-type airconditioning and ventilating systems, NFPA 90A or residence-type,NFPA90B;and/...
Page 20 - Step 6 — Provide for Condensate Disposal; Fig. 24 — Filler Bracket and Blower Shelf; Fig. 25 — Housing Placed for Vertical Airflow; Fig. 26 — Duct Flange Kit — Locating Holes
ACCESSORY DUCT FLANGE KIT INSTALLATION —Refer to Fig. 26 for duct adapter dimensions and holelocations.1. Mark hole locations shown in Fig. 26.2. At marked locations, drill holes using a no. 26 (.147-in.) twist drill. 3. Partially secure duct flanges using two of the no. 10, 1 ⁄ 2 -in. screws provid...
Page 21 - Step 7 — Install Electrical Connections; Fig. 27 — Condensate Trap
Step 7 — Install Electrical Connections The unit cabinet must have an uninterrupted, unbrokenelectrical ground to minimize the possibility of personalinjury if an electrical fault should occur. This groundmay consist of an electrical wire connected to the unitwire-binding screw in the control compar...
Page 22 - Table 4A — Electrical Data — 50SS Units
Table 4A — Electrical Data — 50SS Units UNIT SIZE 50SS V-PH-Hz VOLTAGE RANGE COMPRESSOR OUTDOOR- FAN MOTOR INDOOR- FAN MOTOR POWER SUPPLY AWG 60C MIN WIRE SIZE MAX WIRE LENGTH (ft) Min Max RLA LRA FLA FLA MCA MOCP* 018 208/230-1-60 187 253 8.3 45.0 0.7 1.8 12.0 15 14 75 024 208/230-1-60 187 253 12.4...
Page 23 - Table 4B — Electrical Data — 50SX Units
Table 4B — Electrical Data — 50SX Units UNIT SIZE 50SX V-PH-Hz VOLTAGE RANGE COMPRESSOR OUTDOOR- FAN MOTOR INDOOR- FAN MOTOR POWER SUPPLY AWG 60C MIN WIRE SIZE MAX WIRE LENGTH (ft) Min Max RLA LRA FLA FLA MCA MOCP* 024 208/230-1-60 187 253 12.9 62.5 1.4 2.0 19.5 30 12 75 030 208/230-1-60 187 253 15....
Page 24 - NEC — National Electrical Code; Fig. 30 — Line Power Connections
ROUTING CONTROL POWER WIRES — ICM UNITS(24 v) — Remove knockout in the duct panel (see Fig. 28).Remove the rubber grommet from the installer’s packet (in-cluded with unit) and install it in the knockout opening. Routethermostat wires through grommet providing a drip loop atthe panel. Connect low-vol...
Page 25 - Fig. 32 — Easy Select Interface Board
LEGEND IFO — Indoor Fan OnJW — Jumper Wire C — Contactor, Compressor COM — Common CTD — Compressor Time Delay FU — Fuse HR — Heater Relay ICM — Integrated Control Motor IFO — Indoor Fan On PL — Plug TRAN — Transformer Field Splice Terminal (Marked) Fig. 33 — Units 50SX048,060 — 208/230-1-60, Integra...
Page 27 - Check for Refrigerant Leaks —
4. If the unit is equipped with a crankcase heater, start the heater 24 hours before starting the unit. To start the heateronly, turn the thermostat to the OFF position and ener-gize the electrical disconnect to the unit. START-UP Use the Start-Up Checklist supplied at the end of this book, and proc...
Page 28 - Table 5A — Superheat Charging Table, 50SS018; Table 5B — Superheat Charging Table, 50SS024
c. Suction-tube temperature (F) at low-side service fitting. d. Suction (low-side) pressure (psig). 5. Using ‘‘Superheat Charging Table,’’ compare outdoor-air temperature (F db) with evaporator inlet-air temperature(F wb) to determine desired system operating superheattemperature. See Tables 5A-5I a...
Page 29 - Table 5C — Superheat Charging Table, 50SS030; Table 5D — Superheat Charging Table, 50SS036; Table 5E — Superheat Charging Table, 50SS042
Table 5C — Superheat Charging Table, 50SS030 TEMP (F) AIR ENT COND EVAP AIR — CFM 1000 Evap Air — Ewb (F) 54 56 58 60 62 64 66 68 70 72 74 76 65 SPH 14.2 15.1 16.1 17.1 19.2 21.3 23.3 24.7 25.9 27.2 27.8 28.5 70 SPH 13.6 14.1 14.6 15.0 17.1 19.2 21.3 22.8 24.2 25.7 26.3 26.9 75 SPH 13.0 13.0 13.0 13...
Page 31 - Table 6A — Superheat Charging Table, 50SX024; Table 6B — Superheat Charging Table, 50SX030
Table 5I — Superheat Charging Table, 50SS060 (Copeland Scroll Compressor) TEMP (F) AIR ENT COND EVAP AIR — CFM 1995 Evap Air — Ewb (F) 54 56 58 60 62 64 66 68 70 72 74 76 65 SPH 20.1 20.1 20.1 20.1 20.1 20.1 22.6 25.2 25.6 26.1 26.6 27.0 70 SPH 16.5 16.5 16.5 16.5 17.3 18.0 20.6 23.1 24.0 24.8 25.6 ...
Page 32 - Table 6C — Superheat Charging Table, 50SX036; Table 6D — Superheat Charging Table, 50SX042; Table 6E — Superheat Charging Table, 50SX048
Table 6C — Superheat Charging Table, 50SX036 TEMP (F) AIR ENT COND EVAP AIR — CFM 1200 Evap Air — Ewb (F) 54 56 58 60 62 64 66 68 70 72 74 76 65 SPH 21.3 21.3 21.3 21.3 22.0 22.6 23.3 23.5 23.7 23.8 23.3 22.8 70 SPH 19.3 19.3 19.3 19.3 20.2 21.2 22.2 22.3 22.5 22.6 22.0 21.5 75 SPH 17.2 17.2 17.2 17...
Page 33 - Table 6F — Superheat Charging Table, 50SX060
Table 6F — Superheat Charging Table, 50SX060 TEMP (F) AIR ENT COND EVAP AIR — CFM 1995 Evap Air — Ewb (F) 54 56 58 60 62 64 66 68 70 72 74 76 65 SPH 20.1 20.1 20.1 20.1 20.1 20.1 22.6 25.2 25.6 26.1 26.6 27.0 70 SPH 16.5 16.5 16.5 16.5 17.3 18.0 20.6 23.1 24.0 24.8 25.6 26.5 75 SPH 13.0 13.0 13.0 13...
Page 39 - Table 13 — Wet Coil Pressure Drop
Table 13 — Wet Coil Pressure Drop UNIT SIZE AIRFLOW (cfm) PRESSURE DROP (in. wg) 018* 600 0.069 700 0.082 800 0.102 900 0.116 024 600 0.039 700 0.058 800 0.075 900 0.088 030 900 0.088 1000 0.095 1200 0.123 036 1000 0.068 1200 0.088 1400 0.108 1600 0.123 042 1000 0.048 1200 0.069 1400 0.088 1600 0.10...
Page 41 - Fig. 35 — Fan Blade Clearance
c. Lift wheel from housing. When handling and/or clean- ing blower wheel, be sure not to disturb balance weights(clips) on blower wheel vanes. d. Remove caked-on dirt from wheel and housing with a brush. Remove lint and/or dirt accumulations from wheeland housing with vacuum cleaner, using soft brus...
Page 42 - TROUBLESHOOTING COOLING CHART; SYMPTOM
TROUBLESHOOTING COOLING CHART SYMPTOM CAUSE REMEDY Compressor and con-denser fan will notstart. 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...
Page 46 - PACKAGED SERVICE TRAINING
PACKAGED SERVICE TRAINING Our packaged service training programs provide an excellent way to increase your knowledge of theequipment discussed in this manual. Product programs cover: • Unit Familiarization• Installation Overview • Maintenance• Operating Sequence A large selection of product, theory,...
Page 48 - I. PRELIMINARY INFORMATION; ELECTRICAL
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 REMOVE ALL SHIPPING HOLDDOWN BOLTS AND BRACKETS...