Carrierメーカー50JSの使用説明書/サービス説明書
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50JS,JX018-060 Single-Package Heat Pump Units Installation, Start-Up and Service Instructions NOTE: Read the entire instruction manual before starting the installation. Index SAFETY CONSIDERATIONS ...............................................1-4 General .
UNIT ELECTRICAL CHARACTERISTICS UNIT WEIGHT UNIT HEIGHT IN. [MM] "A" CENTER OF GRAVITY IN. [MM] lb kg X Y Z 50JS018 208/230-1-60 283 128.4 37.02 [940.3] 19.5 [495.3] 16.8 [425.5] 15.0 [381.0] 50JS024 208/230-1-60 289 131.1 39.02 [991.1] 18.5 [469.
UNIT ELECTRICAL CHARACTERISTICS UNIT WEIGHT UNIT HEIGHT IN. [MM] "A" CENTER OF GRAVITY IN. [MM] lb kg X Y Z 50JS048 208/230-1-60, 208/230-3-60, 460-3-60 353 160.1 38.98 [990.2] 20.5 [520.7] 20.6 [523.8] 17.0 [431.8] 50JS060 208/230-1-60, 208/230-3-60, 460-3-60 418 189.
Before performing service or maintenance operations on system, turn off main power to unit. Turn off accessory heater power switch if applicable. Electrical shock could cause severe injury or death. Step 1—General The 50JS and 50JX heat pumps are fully self-contained and designed for outdoor installation (See Fig.
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.
5. Tighten the tension buckle until it is taut. Lifting brackets must be secure in the handholds. 6. Attach field-supplied clevis or hook of sufficient strength to hole in the lifting bracket (See Fig. 8). 7. Attach the 2 safety straps directly to the clevis or hook at the 4 rigging brackets.
Table 1A—Physical Data UNIT SIZE 50JS018 50JS024 50JS030 50JS036 50JS042 50JS048 50JS060 NOMINAL CAPACITY (ton) 1-1/2 2 2-1/2 2-1/2 3-1/2 4 5 OPERATING WEIGHT (lb) 283 289 287 291 323 353 418 COMPRE.
The units dispose of condensate through a 3/4 in. NPT female fitting that exits on the compressor end of the unit. Condensate water can be drained directly onto the roof in rooftop installations (where permitted) or onto a gravel apron in ground level installa- tions.
Fig. 12—Wiring Schematics A00073 FIELD SPLICE TERMINAL (MARKED) TERMINAL (UNMARKED) SPLICE SPLICE (MARKED) F A CT OR Y WIRING FIELD CONTROL WIRING FIELD POWER WIRING ACCESSOR Y OR OPTIONAL WIRING TO.
Fig. 13—Wiring Schematics A00074.
Fig. 14—Wiring Schematics A00075 FIELD SPLICE TERMINAL (MARKED) TERMINAL (UNMARKED) SPLICE SPLICE (MARKED) F A CT OR Y WIRING FIELD CONTROL WIRING FIELD POWER WIRING ACCESSOR Y OR OPTIONAL WIRING TO.
Table 3A—Electrical Data—50JS UNIT 50JS SIZE V-PH-HZ VOLTAGE RANGE COMPRESSOR ODFM IDFM ELECTRIC HEAT POWER SUPPLY Min Max RLA LRA FLA FLA Nominal KW* FLA MCA Max Fuse or CRCT Breaker MOCP 018 208/230-1-60 187 253 9 48 0.9 1.8 -/- 3.8/5 7.5/10 -/- 18.
→ Table 3B—Electrical Data—50JX UNIT 50JX SIZE V-PH-HZ VOLTAGE RANGE COMPRESSOR ODFM IDFM ELECTRIC HEAT POWER SUPPLY Min Max RLA LRA FLA FLA Nominal KW* FLA MCA Max Fuse or CRCT Breaker MOCP 024 208/230-1-60 187 253.00 10.8 56 0.90 2 -/- 3.75/5.
be in a conduit until they enter the duct panel; conduit termination at the duct panel must be watertight. Run the high-voltage leads through the power entry knockout on the power entry side panel (See Fig.
SPECIAL PROCEDURES FOR 208-V OPERATION 1. Disconnect the yellow primary lead (w110) from the trans- former. See unit wiring label (See Fig. 12 through 14). 2. Connect the yellow primary lead (w110) to the transformer terminal labeled 200v. Indoor blower-motor speeds may need to be changed for 208-v operation.
Fig. 22—Typical Heat Pump Operation, Cooling Mode 1. Hot gas from compressor flows through the 4-way valve and is directed to the outdoor coil. It is then condensed and subcooled through the coil circuits. Refrigerant leaves the outdoor coil by way of the OD Accurater in the bypass position to the liquid line.
2. Place SYSTEM switch in COOL position and FAN switch in AUTO position. Set control below room temperature. Observe that cooling cycle shuts down when control setting is satisfied. 3. Place system switch in HEAT position. Set control above room temperature.
The charging label and the tables shown refer to system tempera- tures and pressures in cooling mode only. A refrigerant charging label is attached to the outside of the service access door. If charge level is suspect in Heating mode, reclaim all refrigerant and charge to nameplate amount.
INDOOR AIRFLOW AND AIRFLOW ADJUSTMENTS For heating and cooling operation, the recommended airflow is 350 to 450 cfm for each 12,000 Btuh of rated cooling capacity. for units with optional electric heat, the airflow must not be reduced below the levels stated in Tables 2A and 2B.
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 IGC terminal BM for single-phase and 3-phase units. To change the speed, remove and replace with lead for desired blower motor speed.
Fig. 30—Cooling Charging Chart, 50JX 024 Units C99031 689 100.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 207 276 345 414 483 551 620 SUCTION LINE PRESSURE (KILOP ASCALS) SUCTION LINE PRESSURE (PSIG) 20.0 -7 27 21 16 10 4 -1 SUCTION LINE TEMPERA TURE (DEG.
Failure to follow these warnings could result in serious injury or death: 1. Turn off electrical power to the unit before performing any maintenance or service on this unit. 2. Use extreme caution when removing panels and parts. As with any mechanical equipment, personal injury can result from sharp edges.
exists, 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 to check the system airflow.
Table 5—Cooling and Heating Troubleshooting Chart SYMPTOM CAUSE REMEDY Compressor and outdoor fan will not start Power failure Call power company Fuse blown or circuit breaker tripped Replace fuse o.
Cooling and Heating Troubleshooting Chart (cont’d) SYMPTOM CAUSE REMEDY Suction pressure too low (Cool) Dirty air filter Replace filter (Heat) Outdoor coil frosted Move timer on control board to 30 min.
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Copyright 2000 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231 50js1si Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 4 Tab 5a 5a PC 101 Catalog No.
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