Carrier AQUAZONE 50PEC09-18- Manuals

6 Fig. 4 — 50PEC18 Bottom Return Cabinet Dimensions — Right Hand Piping NOTES: 1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters.2. Access is reduced if optional disconnect box is selected.3. Optional autoflow valve, motorized water valve and disconnect box are shown. a...

8 Fig. 6 — 50PEC18 Bottom Return Cabinet Dimensions — Left Hand Piping NOTES: 1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters.2. Access is reduced if optional disconnect box is selected.3. Optional autoflow valve, motorized water valve and disconnect box are shown. 3 ...

10 a50-8344 Fig. 8 — 50PEC18 Front Return Cabinet Dimensions — Right Hand Piping NOTES: 1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters.2. Access is reduced if optional disconnect box is selected.3. Optional autoflow valve, motorized water valve and disconnect box are...

11 ° ( 8 9) L.H. (NOTE 2) .50 (1 3 ) 11.50 (292) .75 (19) 4.12 (105) (Note 2) a50-8345 Fig. 9 — 50PEC09-15 Front Return Cabinet Dimensions — Left Hand Piping NOTES: 1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters.2. Access is reduced if optional disconnect box is sele...

12 a50-8346 Fig. 10 — 50PEC18 Front Return Cabinet Dimensions — Left Hand Piping NOTES: 1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters.2. Access is reduced if optional disconnect box is selected.3. Optional autoflow valve, motorized water valve and disconnect box are...

19 LEGEND NOTES: 1. Compressor and blower motor thermally pro- tected internally. 2. All wiring to the unit must comply with local codes. 3. Transformer is wired to 115-V (WHT) lead for 115/1/60 units, 265-V (BRN) lead for 265/1/60units, 240-V (ORG) lead for 240/1/50 units, or208-V (RED) lead for 20...

20 *Optional wiring. AL — Alarm Relay Contacts BM — Blower Motor CAP — Capacitor CB — Circuit Breaker CO — Sensor, Condensate Overflow CR — Compressor Relay DM — Damper Motor FP1 — Sensor, Water Coil Freeze Protection FP2 — Sensor, Air Coil Freeze Protection FSS — Fan Speed Switch HP — High-Pressure...

25 Fig. 25 — Unit s wi th C o mple te C a n d WSHP Ope n Mul tiple Prot oc ol C o nt rol s WH S P-OPEN A50-8355 LEGEND BM — Blo w er Motor BR — Bl o w er Rela y CO — Condensate Ov erflo w LW T — Lea ving W a ter T e mp er ature N.C. — Nor m ally Clo s ed OA D — Outside Air Damper OC C — Occupancy In...

29 01220 7 -1 B T 4 8 5BT LED 1 DB In s t a ll B T 4 8 5 where de vi ce i s loc a ted a t the en d o f n e twork s eg me nt o n ly . + 24 v a c (If n o t in s t a lled , it m us t b e con n ect e d to DO-5) D E HUMIDIFY OUTP U T C O NTA CT (D O-6) (F A C TORY O P TION ) FA N S PE ED (DO -7 ) (M ED O...

30 Table 2 — Electrical Data — 50PEC Units LEGEND Step 5 — Wire Low Voltage Connections WATER FREEZE PROTECTION — The Aquazone™ con- trol allows the field selection of source fluid freeze protection points through jumpers. The factory setting of jumper JW3 (FP1) is set for water at 30 F. In earth lo...

31 OPTIONAL WALL-MOUNTED THERMOSTAT — The 50PEC water source heat pump units are built with standard in- ternal thermostats in either manual changeover (MCO) or auto- matic changeover (ACO) configuration. Refer to Fig. 17-20. When desired, the unit can be furnished with a 24-v control circuit which ...

32 Table 6 — Rnet Wiring Specifications LEGEND To wire the SPT sensor to the controller: 1. Partially cut , then bend and pull off the outer jacket of the Rnet cable(s), being careful not to nick the inner insulation. 2. Strip about 1 / 4 in. of the inner insulation from each wire. See Fig. 34. 3. W...

33 2. Install shut-off/balancing valves and unions at each unit to allow unit removal for servicing. NOTE: If flex hoses are used, unions are not necessary. 3. Install strainers at the inlet of each system circulating pump. 4. Before making the final water connections, flush the sys- tem as describe...

34 8. Refill the system with clean, chemically treated water. Since water varies for each locality, contact a local water treatment company for the correct treatment chemicals to use in the area. Set the boiler to raise the loop temperature to approximately 85 F. . Circulate the solution for a minim...

35 Table 9 — 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 de...

36 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. 17, 18, and 21) WATER COIL FREEZE PROTECTION (FP1) LIMIT SETTING — Select jumper 3, (JW...

37 Table 11 — DIP Switch Block S2 — Accessory 2 Relay Options LEGEND NOTE: All other switch combinations are invalid. Auto Dehumidification Mode or High Fan Mode — Switch 7 provides selection of auto dehumidification fan mode or high fan mode. In auto dehumidification fan mode, the fan speed relay w...

38 5. Slowly turn thermostat toward cooler position. Both fan and compressor should shut off when thermostat set point equals room temperature. Room temperature must be above 65 F for unit to shut off. Unit Start-Up with WSHP Open Controls — The WSHP Open is a multi-protocol (default BACnet*) con- t...

39 b. Select Weekly, then press enter (7 schedules available). c. Select day and press enter.d. Press enter again and select ADD or DEL (DECR or INCR) set schedule. e. Enter ON/OFF time, then press continue.f. Press OK to apply and save to a particular day of the week. g. Continue to add the same or...

40 Table 13 — Approximate Fluid Volume (gal) per 100 ft of Pipe LEGEND NOTE: Volume of heat exchanger is approximately 1.0 gallon. Table 14 — Antifreeze Percentages by Volume Cooling Tower/Boiler Systems — These systems typically use a common loop maintained at 60 to 90 F. Carrier recommends using a...

41 application, all compressor relays and related functions will track with their associated DIP switch 2 on S1.NIGHT LOW LIMIT (NLL) STAGED HEATING — In NLL staged Heating mode, the override (OVR) input becomes active and is recognized as a call for heating and the control will immediately go into ...

43 ASHRAE (American Society of Heating, Refrigerating and Air Conditioning Engineers) specifications by providing a base ventilation rate and then increasing the rate as the CO 2 level in- creases. The control will begin to proportionally increase venti- lation when the CO 2 level rises above the st...

44 label. For example, flashing code 1 will have an alarm relay cycling code 1. Code 1 indicates the control has not faulted since the last power-off to power-on sequence. WSHP Open Test Mode — To enter WSHP Open test mode, navigate from the BAC view 6 home screen to the config- uration screen. Choo...

48 Table 18 — 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/sec...

50 APPENDIX A — WSHP OPEN SCREEN CONFIGURATION LEGEND SCREEN NAME POINT NAME PASSWORD LEVEL EDITABLE RANGE DEFAULT NOTES Equipment Status Operating Mode No Password Re q uired Off, Fan Only, Economize, Cooling, Heating, Cont Fan, Test, Start Delay, Dehumidify Displays unit operating mode SPT F Displ...

51 APPENDIX A — WSHP OPEN SCREEN CONFIGURATION (cont) LEGEND SCREEN NAME POINT NAME PASSWORD LEVEL EDITABLE RANGE DEFAULT NOTES Unit Maintenance Operating Mode No Password re q uired Off, Fan Only,Economize, Cooling, Heating, Cont Fan, Test, Start Delay, Dehumidify Displays unit operating mode Fan O...

53 APPENDIX A — WSHP SCREEN OPEN CONFIGURATION (cont) LEGEND SCREEN NAME POINT NAME PASSWORD LEVEL EDITABLE RANGE DEFAULT NOTES Configuration Unit Configuration Fan Mode Admin Password level access only X Auto/Continuous/ Always On Continuous Auto= Intermittant operation during both occupied and uno...

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500052-01 Printed in U.S.A. Form 50PEC-2SI CL-2 7-09 Replaces: 50PEC-1SI Copyright 2009 Carrier Corporation - - - - - - - - - - - - - - ...