Page 2 - LEGEND
2 Recognize safety information. This is the safety alert symbol ( ). When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury. GENERAL The Aquazone™ 50PSW water source heat pump (WSHP) is a single-package vertically mounted unit with electron...
Page 3 - ss; IZE
3 LEGEND NOTES: 1. Dimensions shown inches.2. HACR circuit breaker in U.S.A. only. 50PSW UNIT SIZE OVERALL CABINET WATER CONNECTIONS ELECTRIC ACCESS PLUGS 1 2 3 4 5 6 Source (Outdoor) Load (Indoor) HWG A Depth B Width C Height D Water In E Water Out F Water In G Water Out H Return In J Water Out K L...
Page 5 - Step 5 — Connect Piping —; not; Fig. 3 — Typical Water Loop System —
5 Step 5 — Connect Piping — Depending on the appli- cation, there are 3 types of WSHP piping systems to choose from: water loop, ground-water and ground loop. Refer to the Carrier System Design Manual for additional information. All WSHP units utilize low temperature soldered female pipe thread fitt...
Page 6 - Table 2 — Water Quality Guidelines
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...
Page 7 - Step 6 — Wire Electrical Connections; Table 3 — 50PSW Electrical Data; WARNING
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...
Page 8 - LE
8 AL — Alar m Rel a y Cont acts CB — Circuit B reak e r CC — Compre s s or Con tact o r COMP — Compre s s or FP1 — S e ns or , S o ur ce Lo w T e m p P ro tec ti o n FP2 — Sen s o r, Loa d L o w T e mp Pr ote c ti on HP — High Pre s sur e S witch JW 4 — J u mpe r Wi re f o r Alar m LED — Ligh t-E m ...
Page 10 - GEND
10 Fig. 6 — Typica l A q u a zon e ™ 50 PSW3 60 Complet e C a nd LON Cont ro ller Cont ro l Wiring , 3- Phas e Complete C Complete C COMPLETE C COMPLETE C COMPLETE C 2 COMPLETE C 1 5 5 A50-8434 AL — Al ar m Rela y Cont act s CB — Circuit Brea k e r CC — Compr e ss o r Co nta c tor COMP — Compr e ss ...
Page 11 - LEG
11 Fig. 7 — T y pica l A q u a zone ™ 50 PSW03 6 -1 8 0 Co m p le te C Co ntr o l Wiring, 3- Phas e C o mplet e C C o mplet e C C o mplet e C C o mplet e C C o mplet e C 1 C omplet e C 2 LEG E ND P1 — Fie ld Wir in g T e rm inal Bl oc k PD B — P o w e r D ist ri b u ti on B loc k RV S — Re v e rsing...
Page 12 - LEGE
12 Del u xe D Del u xe D DELUXE D DELUXE D DELUXE D 2 DELUXE D 1 *O p tio nal. NO TES : 1 . Compre ssor mo tor t her mally p rot ecte d i n te rnal ly . 2 . All wir ing to t he un it m u st compl y wit h N E C an d local co des . 3 . P o w e r S uppl y: 460 v and 5 75 v — T ransf o rm er is f a ct o...
Page 15 - Step 7 — Wire Low Voltage Connections; only; Fig. 12 — Typical Field Wiring; Typical; Fig. 14 — Typical Aquazone Accessory Wiring
15 SUPPLY VOLTAGE — Operating voltage to unit must be within voltage range indicated on unit nameplate. Voltages between phases must be balanced within 2%. Use the following formula to determine the percentage voltage imbalance:% Voltage Imbalance Example: Supply voltage is 460-3-60. AB = 452-v BC =...
Page 17 - Scroll Compressor Rotation —
17 Deluxe D Control Accessory Relay Configura-tions (See Tables 4 and 5) — The following acces- sory relay settings are applicable for Deluxe D control only:CYCLE WITH COMPRESSOR — In this configuration, the relay will be ON any time the compressor relay is on.DIGITAL NIGHT SETBACK (NSB) — In this c...
Page 18 - Table 7 — Heat Exchanger Pressure Drop; UNIT
18 If the suction pressure does not drop and the discharge pressure does not rise to normal levels: 1. Turn off power to the unit. Install disconnect tag.2. Reverse any two of the unit power leads.3. Reapply power to the unit and verify pressures are cor- rect. The suction and discharge pressure lev...
Page 19 - Table 9 — Antifreeze Percentages by Volume; Cooling Tower/Boiler Systems —; Internal Pipe Size
19 Alcohols and glycols are commonly used as antifreeze agents. Freeze protection should be maintained to 15 F below the lowest expected entering loop temperature. For example, if the lowest expected entering loop temperature is 30 F, the leav- ing loop temperature would be 22 to 25 F. Therefore, th...
Page 20 - Table 10 — Complete C Control Current LED; CC; Fig. 15 — Test Mode Pins Location
20 Output EH2 will be off if FP1 is greater than 45 F and FP2 (when shorted) is greater than 110 F during Heating Stage 3 mode. This condition will have a 30-second recognition time. Also, during Heating Stage 3 mode, EH1, EH2, fan enable, and fan speed will be ON if G input is not active.EMERGENCY ...
Page 23 - Table 13 — Troubleshooting
23 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/...
Page 28 - HEATING AND COOLING CYCLE ANALYSIS; = SUCTION TEMPERATURE – SUCTION SATURATION TEMPERATURE; SUBCOOLING; = DISCHARGE SATURATION TEMPERATURE – LIQUID LINE TEMPERATURE; DESCRIPTION; REVERSING; COAX; Source; CLG; HTG
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500054-01 Printed in U.S.A. Form 50PSW-2SI Pg CL-2 7-09 Replaces: 50PSW-1SI Copyright 2009 Carrier Corporation - - - - - - - - - - - - -...