Carrier 50PSW036-360 - Manuals

5 8. Remove any access panel screws that may be difficult to remove once unit is installed. Step 3 — Locate Unit — The following guidelines should be considered when choosing a location for the WSHP:• Units are for indoor use only.• Provide sufficient space for water and electrical connections. • Lo...

6 Table 2 — Water Quality Guidelines LEGEND *Heat exchanger materials considered are copper, cupronickel, 304 SS (stainless steel), 316 SS, titanium. †Closed recirculating system is identified by a closed pressurized piping system. **Recirculating open wells should observe the open recirculating des...

7 Step 6 — Wire Electrical Connections All field-installed wiring, including the electrical ground, MUST comply with the National Electrical Code (NEC) as well as applicable local codes. In addition, all field wiring must conform to the Class II temperature limitations described in the NEC. Operatin...

12 EXTERNAL LOOP POWER CONNECTION — If the unit is to be connected to an external loop pump or flow controller, connect the pump to the loop pump terminal block PB1. The maximum power handling is 4 amps at 240-v. The pumps will automatically cycle as required by the unit.220-V OPERATION — All 220/24...

13 FIELD SELECTABLE INPUTS Jumpers and DIP (dual in-line package) switches on the control board are used to customize unit operation and can be configured in the field. Complete C Control Jumper Settings (SeeFig. 4-6) WATER COIL FREEZE PROTECTION (FP1) LIMIT SETTING — Select jumper 3, (JW3-FP1 Low T...

14 Table 5 — DIP Switch Block S2 — Accessory 2 Relay Options LEGEND NOTE: All other DIP switch combinations are invalid. START-UP Use the procedure outlined below to initiate proper unit start-up.NOTE: This equipment is designed for indoor installation only. Operating Limits (See Table 6) ENVIRONMEN...

15 Table 7 — Heat Exchanger Pressure Drop UNIT SIZES 036-120 UNIT SIZES 180,360 NOTE: Bold values indicate use of antifreeze is re q uired. Cleaning and Flushing — Cleaning and flushing of the piping system is the single most important step to ensure proper start-up and continued efficient operation...

16 Table 8 — Approximate Fluid Volume (L) per 30 M of Pipe LEGEND NOTE: Volume of heat exchanger is approximately 1.0 gallon(3.78 liters). Table 9 — Antifreeze Percentages by Volume Cooling Tower/Boiler Systems — These systems typically use a common loop maintained at 15.6 to 32.2 C. The use of a cl...

17 Upon entering Test mode, the status LED (light-emitting di- ode) will flash a code representing the last fault. For diagnostic ease at the thermostat, the alarm will also cycle during Test mode. The alarm relay will cycle on and off similar to the sta- tus LED to indicate a code representing the ...

19 but take care to prevent liquid from being carried over by the gases. Warm solution acts faster, but cold solution is just as effec- tive if applied for a longer period.GRAVITY FLOW METHOD — Do not add solution faster than vent can exhaust the generated gases. When condenser is full, allow soluti...

20 S UCTIO N COMPRE SS OR DI S CHARGE COAX EXP AN S ION VA LV E FP 2 FP 1 LIQUI D LIN E WA TER IN WA TER OUT CONDEN S A TE OVERFLO W (CO) AIR COI L FREEZ E PROTECTIO N WA TE R COI L PROTECTIO N THERMI S T OR ( ° C) ( ° C) AI R COI L AIRFLOW AIRFLO W a50-8163 LEGEND Fig. 15 — FP1 and FP2 Thermistor L...

21 Table 13 — Troubleshooting LEGEND FAULT HEATING COOLING POSSIBLE CAUSE SOLUTION Main Power Problems X X Green Status LED Off Check line voltage circuit breaker and disconnect. Check for line voltage between L1 and L2 on the contactor. Check for 24-vac between R and C on controller. Check primary/...

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500073-01 Printed in U.S.A. Form 50PSW-C1SI Pg CL-2 10-10 Replaces: New Copyright 2010 Carrier Corporation - - - - - - - - - - - - - - -...