Carrier AQUAZONE 50HQL072-120 Manuel d'instructions

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 1

10PROTECTION — Once the units are properly positioned onthe jobsite, they must be covered with either a shipping carton,vinyl film, or an equivalent p

11Step 6 — Condensate DrainHORIZONTAL UNITS (50HQL) — Slope the unit towardthe drain at a 1/4 in. per foot pitch. See Fig. 5. If it is not possi-bl

12Step 7 — Piping Connections — Depending on theapplication, there are 3 types of WSHP piping systems to choosefrom: water loop, ground-water and gro

13Table 3 — Water Quality Guidelines*If the concentration of these corrosives exceeds the maximum allowable level, then the potential for serious corr

14NOTES FOR FIG. 8A:1. Compressor and blower motor thermally protected internally.2. All wiring to the unit must comply with NEC and local codes.3. 20

15AQUAZONETHERMOSTATFig. 8A — 50HQL072-120 and 50VQL160, With Complete C Controls (Typical)

16AQUAZONETHERMOSTATFig. 8B — 50HQL072-120 and 50VQL160 with Deluxe D Controls (Typical)

17AQUAZONETHERMOSTATFig. 9A — 50VQL080-120 with Complete C Controls (Typical)

18AQUAZONETHERMOSTATFig. 9B — 50VQL080-120 with Deluxe D Controls (Typical)

19AQUAZONETHERMOSTATFig 10A — 50VQL200-300 with Complete C Controls (Typical)

2Follow all safety codes. Wear safety glasses and workgloves. Use quenching cloth for brazing operations. Have fireextinguisher available. Read these

20AQUAZONETHERMOSTATFig. 10B — 50VQL200-300 with Deluxe D Controls (Typical)

21Table 4A — Electrical Data — 50HQL072-120 Units LEGEND*Time-delay fuse or HACR circuit breaker.Table 4B — Electrical

22SUPPLY VOLTAGE — Operating voltage to unit must bewithin voltage range indicated on unit nameplate.On 3-phase units, voltages under load between pha

23Table 5A — 50HQL072 Blower Performance Data LEGENDNOTES:1. Boldface requires 2 hp motor.2. Units factory shipped w

24Table 5C — 50HQL120 Blower Performance Data LEGENDNOTES:1. Boldface requires 3 hp motor.2. Units factory shipped a

25Table 5E — 50VQL100 Blower Performance Data LEGENDNOTES:1. Bold numbers require 2 horsepower motor.2. Due to altern

26Table 5G — 50VQL160 Blower Performance Data LEGENDNOTES:1. Due to alternate sheaves, ‘Tu r n s O p e n ’ may vary within

27Table 5I — 50VQL240 Blower Performance Data LEGENDNOTES:1. Bold numbers require 3 horsepower motor.2. Values are per blowe

28Step 9 — Low Voltage WiringTHERMOSTAT CONNECTIONS — The thermostat shouldbe wired directly to the Aquazone™ control board. SeeFig. 8A-11.WATER FREEZ

29D Control DIP Switches — The D Control has 2 DIPswitch blocks. Each DIP switch block has 8 switches and islabeled either S1 or S2 on the circuit boa

3Table 1 — Physical Data — 50HQL072-120 Units LEGEND *All units have grommet and spring compressor mountings, and1/2 in. and 7/8 in.

30Table 6 — DIP Switch Block S2 — Accessory 1 Relay OptionsLEGENDNOTE: All other DIP switch combinations are invalid.Table 7 — DIP Switch Block S2 —Ac

31Scroll Compressor Rotation — It is important to becertain compressor is rotating in the proper direction. Todetermine whether or not compressor is r

32Alcohols and glycols are commonly used as antifreezeagents. Freeze protection should be maintained to 15 F belowthe lowest expected entering loop te

33EMERGENCY HEAT — In Emergency Heat mode, the FanEnable and Fan Speed relays are turned on. The EH1 output isturned on immediately. With continuing E

34Table 13 — Aquazone™ D Control Current LED Status and Alarm Relay OperationsLEGEND NOTES:1. If there is no fault in memory, the Fault LED will flash

35Condenser Cleaning — Water-cooled condensers mayrequire cleaning of scale (water deposits) due to improperlymaintained closed-loop water systems. Sl

36TROUBLESHOOTING(Fig. 16 and 17, and Table 14)When troubleshooting problems with a WSHP, consider thefollowing:Thermistor — A thermistor may be requi

37Table 14 — TroubleshootingLEGENDFAULT HEATING COOLING POSSIBLE CAUSE SOLUTIONMain Power ProblemsX X Green Status LED Off Check line voltage circuit

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 1

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 1

4BACGFEDRHLMN1.8”K12543CAPCSPBSPSTRAIGHT (RIGHT)DISCHARGELEFT INLETHanger Bracket DimensionsOPQACT2.2"S34.1"74.1"PLAN VIEW(TOP)FRONTFRO

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 1

5BACGFEDRHLMN1.8”K12543CAPCSPBSPLEFT INLETHanger Bracket DimensionsOPQACT2.2"S34.1"74.1"PLAN VIEW(TOP)25.5”FRONTFRONTOF UNITVULeft Retu

6ThermostatWiringInsulated supply duct withat least one 90 deg elbowto reduce air noiseReturn AirSupply Air3/8” Threaded rodsUnit PowerDisconnectPower

7Rear Return Front SupplyAir OutBSPNRPReturnAirCAPBWFDE11NK321UVP54Rear Return Top SupplyNRPAir OutBSPReturnAirCAPBFD321Air OutReturnAirCAPFront Retur

8OCSPBSPReturn AirReturn AirCAPFront Return Top SupplyAir OutAir OutCSPCSPCReturn AirReturn AirCAPARear Return Top SupplyBRBack SideAir Out1.75G1BSPBS

9OCSPCSPCReturn AirReturn AirCAPARear Return Top SupplyBRBack SideAir Out1.75G1BSPBSP540.75213Air OutEDDFWTULMKN6.3SSVQPFront Return Top SupplyBSPCABB