Carrier AQUAZONE 50HQP072-120 Instruction Manual

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata

10Table 2 — Water Quality GuidelinesLEGEND*Heat exchanger materials considered are copper, cupronickel, 304 SS (stainlesssteel), 316 SS, titanium.†Clo

11 BC — Blower ContactorCB — Circuit BreakerCC — Compressor ContactorCO — Sensor, Condensate OverflowDPP — Dual Point PowerFP1 — Sensor, Water Coil Fr

12Fig. 13 — 50HQP072-120 Units — Typical Control Wiring with Deluxe D ControlSee legend and notes on page 11.Deluxe D1Deluxe DDeluxe D2Deluxe DDeluxe

13YWOGRCAL1AL2ACRCMP1FANPWRHS1/EXH/RVSPREMIERLINKCRCOMPLETECCONTROLJ4J6J5J8J1PWRSPSALWCMPSAFETTTY1GRCAL1CMP1FANPWRPREMIERLINKDELUXEDCONTROLJ4J8J1PWRCM

14Table 3A — Electrical Data — 50HQP072-120 Standard UnitsTable 3B — Electrical Data — 50HQP072-120 Dual Point Power Units

15Step 10 — Install Field Control WiringTHERMOSTAT CONNECTIONS — The thermostat shouldbe wired directly to the Aquazone™ control board. SeeFig. 18 and

16PRE-START-UPSystem Checkout — When the installation is complete,follow the system checkout procedure outlined below beforestarting up the system. Be

17Table 5 — Blower Data — 50HQP072 LEGEND NOTES:1. A = Standard Rpm/Standard Motor, B = Low Rpm/Standard Motor, C =H

18Table 6 — Blower Data — 50HQP096 LEGEND NOTES:1. A = Standard Rpm/Standard Motor, B = Low Rpm/Standard Motor, C =H

19Table 7 — Blower Data — 50HQP120 LEGEND NOTES:1. A = Standard Rpm/Standard Motor, B = Low Rpm/Standard Motor, C =H

2accessories when modifying this product. Refer to theindividual instructions packaged with the kits or accessorieswhen installing.Follow all safety c

20Table 7 — Blower Data — 50HQP120 (cont) LEGEND NOTES:1. A = Standard Rpm/Standard Motor, B = Low Rpm/Standard Moto

21AIR COIL FREEZE PROTECTION (FP2) LIMIT SET-TING — Select jumper 2 (JW2-FP2 Low Temp) to chooseFP2 limit of –12.2 C or –1.1 C. To select –1.1 C as t

22MECHANICAL NIGHT SET BACK — When NSB input isconnected to ground C, all thermostat inputs are ignored. Athermostat set back heating call will then b

234. Check the temperature of both supply and dischargewater.5. Air temperature drop across the coil should be checkedwhen compressor is operating. Ai

24or before access to all connections is limited. Test pressuremay not exceed the maximum allowable pressure for the unitand all components within the

25immediately once the demand is removed. The control re-verts to Heating Stage 1 mode. If there is a master/slave ordual compressor application, all

26Table 15 — Complete C Control LED Code andFault DescriptionsLEGENDTable 16 — Aquazone™ Deluxe D Control Current LED Status and Alarm Relay Operation

27Filters — Filters must be clean for maximum performance.Inspect filters every month under normal operating conditions.replace when necessary.Washabl

28For average scale deposit, allow solution to remain in con-denser overnight. For heavy scale deposit, allow 24 hours.Drain condenser and flush with

29NOTE: There should be a 3 to 6 mm gap between themating part hub and the bushing flange. If the gap isclosed, the bushing is probably the wrong size

3especially important in areas where painting, plastering, orspraying of fireproof material, etc. is not yet complete. Foreignmaterial that is allowed

30TROUBLESHOOTINGWhen troubleshooting problems with a WSHP, seeTable 18.Thermistor — A thermistor may be required for single-phase units where startin

31Table 18 — TroubleshootingLEGENDFAULT HEATING COOLING POSSIBLE CAUSE SOLUTIONMain Power Problems X X Green Status LED Off Check line voltage circuit

32Table 18 — Troubleshooting (cont)LEGENDFAULT HEATING COOLING POSSIBLE CAUSE SOLUTIONOnly Compressor Runs X X Thermostat wiring Check G wiring at hea

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata

CL-1START-UP CHECKLISTCUSTOMER:___________________________ JOB NAME: _______________________________________MODEL NO.:___________________________ SERI

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata

4a50-8531Fig. 1 — Unit DimensionsHANGER BRACKET DIMENSIONS221cm2.54cmPLAN VIEWTOP10.8cm86.6cmFRONTCONTROL BOXUTSV3.3cmcondensateLEFT RETURN LEFT VIEW-

5Step 3 — Locate Unit — The following guidelinesshould be considered when choosing a location for a WSHP:• Units are for indoor use only.• Locate in a

6EXISTING DUCT SYSTEM — If the unit is connected toexisting ductwork, consider the following:• Verify that the existing ducts have the proper capacity

7 7. Mount motor, motor sheave, blower sheave and belt.Make sure wires are not pinched and not over sharp edg-es. Adjust motor downward to tighten bel

8• All plastic to metal threaded fittings should be avoideddue to the potential to leak. Use a flange fitted substitute.• Teflon tape thread sealant i

9Determine percent voltage imbalance.= 0.95%This amount of phase imbalance is satisfactory as it isbelow the maximum allowable 2%.Operation on imprope