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Manual Carrier AQUAZONE 50HQP072-120

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  • Carrier AQUAZONE 50HQP072-120 - page 1

    Manufacturer reserves the right to disco ntinue, or change at any time, specifications or de signs without notice and without inc urring obligations. Catalog No . 04-53 500077-01 Printed in U .S .A. Form 50HQP-C1SI Pg 1 11-10 Replaces: Ne w Installation, Star t-Up , and Ser vice Instructions CONTENTS Page SAFETY CONSIDERA T IONS . . . . . . . . . . ...

  • Carrier AQUAZONE 50HQP072-120 - page 2

    2 accessories when modifying this product. Refer to the individual instructions packaged with the kits or accessories when installing. Follow all safety codes. W e ar safety glasses and work gloves. Use quenching cloth for brazing operations. Have fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions at ...

  • Carrier AQUAZONE 50HQP072-120 - page 3

    3 especially important in areas where painting, plastering, or spraying of fireproof material, et c. is not yet complete. Foreign material that is allowed to accumulate within the units can pre- vent proper start-up and necessita te costly clean-up operations. Before installing any of the system components, be sure to examine each pipe, fitting, an ...

  • Carrier AQUAZONE 50HQP072-120 - page 4

    4 a50-8531 Fig. 1 — Unit Dimensions HANGER BRACKET DIMEN S ION S 221cm 2.54cm PLAN VIEW TOP 10. 8 cm 8 6.6cm FRONT CONTROL BOX U T S V 3 . 3 cm conden sa te LEFT RETURN LEFT VIEW - AIR COIL S IDE LEFT RETURN END DI S CHARGE CBP EAP B S P CAP CAP FRONT E D F G CAP CBP CAP EAP B S P FRONT FRONT CONTROL BOX PLAN VIEW TOP V S U RIGHT RETURN RIGHT VIE ...

  • Carrier AQUAZONE 50HQP072-120 - page 5

    5 Step 3 — Locate Unit — The following guidelines should be considered when choosing a location for a WSHP: • Units are for indoor use only . • Locate in areas where ambient temperatures are between 4.4 C and 37.8 C and relative humidity is no greater than 75%. • Provide suf ficient space for water , electrical and duct connections. • L ...

  • Carrier AQUAZONE 50HQP072-120 - page 6

    6 EX I S TI N G DU C T S YS T E M — If the unit is connected to existing ductwork, consider the following: • V erify that the ex isting duct s have th e proper capacity to handle the unit airflow . If the ductwork i s too small, larger ductwork should be installed. • Check existing ductwork for leaks and repair as necessary . NOTE: Local code ...

  • Carrier AQUAZONE 50HQP072-120 - page 7

    7 7. Mount motor , motor sheave, blower sheave and belt. Make sure wire s are not pi nched and not over sharp edg- es. Adjust motor downward to tighten belt. Raise or lower motor slide assembly with adjusting bolt and retighten the 2 slide nuts. Check for correct tension. Rewire motor (at contactor) for correct rotation. Spin bl ower wheel to en- s ...

  • Carrier AQUAZONE 50HQP072-120 - page 8

    8 • All plastic to metal thread ed fittings should be av oided due to the potential to leak. Use a flange fitted s ubstitute. • T eflon tape thread sealan t is recommended to minim ize internal fouling of the heat exchanger . • Use backup wrench. Do no t overtighten connections. • Route piping to avoid serv ice access areas to unit. • The ...

  • Carrier AQUAZONE 50HQP072-120 - page 9

    9 Determine percent voltage imbalance. = 0.95% This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%. Operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause damage to electri- cal components. NOTE: If more than 2% voltage imbalance is present, contact local electric utility . ...

  • Carrier AQUAZONE 50HQP072-120 - page 10

    10 Table 2 — Water Quality Guideline s LEGEND *Heat exchanger materials considered are copper , cupronick el, 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 design considerations. ††If the concentra ...

  • Carrier AQUAZONE 50HQP072-120 - page 11

    11 BC — Blower Contactor CB — Circuit Breaker CC — Compressor Contactor CO — Sensor , Condensate Overflow DPP — D u a l Po i n t Po w e r FP1 — Sensor , Water Coil F reeze Protection FP2 — Sensor , Air Coil Freeze Protection HP — High-Pressure Switch HPWR — High-Pressure W ater Rela y JW3 — Clippable Field Selection Jumper LOC ? ...

  • Carrier AQUAZONE 50HQP072-120 - page 12

    12 Fig. 13 — 50HQP 072-120 Units — T ypical Control Wiring with Deluxe D Control See legend and notes on page 11. Deluxe D1 Deluxe D Deluxe D2 Deluxe D Deluxe D2 Deluxe D1 ...

  • Carrier AQUAZONE 50HQP072-120 - page 13

    13 Y W O G R C AL1 AL2 A CR CMP1 FA N PWR HS1/EXH/RVS PREMIER LINK CR COMPLETE C CONTROL J4 J6 J5 J8 J1 PWR S P S A L W CMPSAFE T T T Y1 G R C AL1 CMP1 FA N PWR PREMIER LINK DELUXE D CONTROL J4 J8 J1 PWR CMPSAFE HS2 HS1 CMP2 Y2 W1 O/W2 J6 J5 S P T S A T L W T Fig. 14 — Premierlink™ Contr oller App lications Wiring with Complete C Contr o l LEGE ...

  • Carrier AQUAZONE 50HQP072-120 - page 14

    14 Table 3A — Electrica l Data — 50HQP072 -120 Standard Units Table 3B — Electrica l Data — 50HQP072 -120 Dual Point Power Uni ts LEGEND *Time-dela y fuse or HACR circuit break er . Table 4 — Low Voltage VA Ratings * Standard transf ormer is 75 V A. UNIT 50HQP VO LT AG E CODE V O LTA G E MIN/MAX VO L T AG E BLO WER OPTION COMPRESSOR F AN ...

  • Carrier AQUAZONE 50HQP072-120 - page 15

    15 Step 10 — Install Field Contr ol Wiring TH E R M OS T A T C O N N EC T I O N S — The thermostat should be wired directly to the Aquazone™ control board. See Fig. 18 and 19. The thermostat should be located on an interior wall in a larger room, away from supply duct drafts. DO NOT locate the thermostat in areas subject to sunlight, drafts o ...

  • Carrier AQUAZONE 50HQP072-120 - page 16

    16 PRE-ST ART -UP System Chec kout — When the installation is complete, follow the system checkout procedure outlined below before starting up the system. Be sure: 1. V oltage is within the utilizati on range specifications of the unit compressor and fan moto r and voltage is balanced for 3-phase units. 2. Fuses, breakers and wire are correct s i ...

  • Carrier AQUAZONE 50HQP072-120 - page 17

    17 Table 5 — Blower Dat a — 50HQP072 LEGEND NOTES: 1. A = Standard Rpm/ Standard Motor , B = Low Rpm/ Standard Motor , C = High Rpm/Standard Motor . 2. Unit f actory shipped with standard static shea ve an d drive at 2 .5 turns open. Other speed require field selection. 3. Fo r applications requiring higher static pressures, co ntact your local ...

  • Carrier AQUAZONE 50HQP072-120 - page 18

    18 Table 6 — Blower Dat a — 50HQP096 LEGEND NOTES: 1. A = Standard Rpm/ Standard Motor , B = Lo w Rpm/Standard Moto r , C = High Rpm/Standard Motor . 2. Unit f actory shipped with standard static shea ve an d drive at 2 .5 turns open. Other speed require f ield selection. 3. Fo r applications requiring higher static pressures , contact y our lo ...

  • Carrier AQUAZONE 50HQP072-120 - page 19

    19 Table 7 — Blower Dat a — 50HQP120 LEGEND NOTES: 1. A = Standard Rpm/ Standard Motor , B = Low Rpm/ Standard Motor , C = High Rpm/Standard Motor . 2. Unit f actory shipped with standard static shea ve an d drive at 2 .5 turns open. Other speed require field selection. 3. Fo r applications requiring higher static pressures, co ntact your local ...

  • Carrier AQUAZONE 50HQP072-120 - page 20

    20 Table 7 — Blower Data — 50HQP120 (cont) LEGEND NOTES: 1. A = Standard Rpm/ Standard Motor , B = Lo w Rpm/Standard Moto r , C = High Rpm/Standard Motor . 2. Unit f actory shipped with standard static shea ve an d drive at 2 .5 turns open. Other speed require f ield selection. 3. Fo r applications requiring higher static pressures , contact y ...

  • Carrier AQUAZONE 50HQP072-120 - page 21

    21 AIR COIL FREEZE PROTECTION (FP2) LI MIT SET - TI N G — Select jumper 2 (JW2-FP2 Low T emp) to choose FP2 limit of –12.2 C or –1.1 C. T o select –1.1 C as the limit, DO NOT clip the jumper . T o select –12.2 C as the limit, clip the jumper . ALARM RELA Y SETTING — Se le ct j ump er 4 ( JW 4- AL2 Dry) for connecting alarm relay termina ...

  • Carrier AQUAZONE 50HQP072-120 - page 22

    22 ME C H AN I C A L N I G HT S E T BA C K — When NSB input is connected to ground C, all thermostat inputs are ignored. A thermostat set back heating call will then be connected to the OVR input. If OVR input becomes active, then the Deluxe D control will enter Night Low Limit (NLL) staged heating mode. The NLL staged heating mode will then prov ...

  • Carrier AQUAZONE 50HQP072-120 - page 23

    23 4. Check the temperature of both supply and discharge water . 5. Air temperature drop across the coil should be checked when compressor is operating. Air temperature drop should be between –9.4 and –3.9 C. Unit Start-Up in Heating Mode NOTE: Operate the unit in heating cycle after checking the cooling cycle. Allow 5 minutes between tests for ...

  • Carrier AQUAZONE 50HQP072-120 - page 24

    24 or before access to all conne ctions is limited. T est pressure may not exceed the maximum allowable pressure for the unit and all components within the water system. Carrier will not be responsible or liable for damages from water leaks due to inadequate or lack of a pres surized leak test, or damages caused by exceeding the maximum pressure ra ...

  • Carrier AQUAZONE 50HQP072-120 - page 25

    25 immediately once the demand is removed. The control re - verts to Heating Stage 1 mode. If there is a master/slave or dual compressor application, all compressor relays and re- lated functions will op erate pe r their associated DIP switch 2 setting on S1. HEA TING ST AGE 3 — In Heating Stage 3 mode, the Fan Enable, Fan Speed and Comp ressor r ...

  • Carrier AQUAZONE 50HQP072-120 - page 26

    26 Table 15 — Complete C Contr ol LED Code and Fault Descriptions LEGEND Table 16 — Aquazone™ Deluxe D Control Current LED Status and Alar m Relay Operations LEGEND NO TES: 1. If there is no f ault in memory , the F ault LED will flash co de 1. 2. Codes will be disp lay ed with a 10-se cond F ault LED paus e. 3. Slow flash is 1 flash e very 2 ...

  • Carrier AQUAZONE 50HQP072-120 - page 27

    27 Filter s — Filters must be clean for maximum perfor mance. Inspect filters every month unde r normal operating conditions. replace when n ecessary . W ashable, high efficiency , electrostatic filters, when dirty , can exhibit a very high pressure drop for the fan motor and re- duce air flow , resulting in poor performance. It is especially im- ...

  • Carrier AQUAZONE 50HQP072-120 - page 28

    28 For average scale deposit, allow solution to remain in con- denser overnight. For heavy scale deposit, allow 24 hours. Drain condenser and flush with clean water . Follow acid manu- facturer ’ s instructions. Compressor — Conduct annual amperage checks to in- sure that amp draw is no more than 10% greater than indicated on the serial plate d ...

  • Carrier AQUAZONE 50HQP072-120 - page 29

    29 NOTE: There should be a 3 to 6 mm gap between the mating part hub and the bushing flange. If the gap is closed, the bushing is probably the wrong size. 3. W ith taper-lock bushed hubs , be su re the bushing bolts are tightened evenly to prevent side-to-side pulley wob- ble. Check by rotating sheaves and rechecking sheave alignment. When substitu ...

  • Carrier AQUAZONE 50HQP072-120 - page 30

    30 TROUBLESHOO TING When troubleshooting problems with a WSHP , see T able 18. Thermistor — A thermistor may be required for single- phase units where starting the unit is a problem due to low voltage. See Fig. 26 for thermistor nominal resistance. Contr ol Sensors — The control system employs 2 nom- inal 10,000 ohm thermistors (FP1 and FP2) th ...

  • Carrier AQUAZONE 50HQP072-120 - page 31

    31 Table 18 — Troubleshooting LEGEND F A UL T HEA TING COOLING POSSIBLE CAUSE SOLUTION Main Power Problems X X Green Stat us LED Off Check line voltage circ uit breaker and dis connect. Check for line v oltage bet ween L1 and L2 on th e contacto r . Check f or 24-vac between R and C on con troller. Check primar y/secondar y voltage on transformer ...

  • Carrier AQUAZONE 50HQP072-120 - page 32

    32 Table 18 — Troubleshooting ( cont) LEGEND F A UL T HEA TING COOLING POSSIBLE CAUSE SOLUTION Only Compressor Runs X X T hermo stat wir ing Check G wir ing at heat pump. Jumper G and R for f an operation. Check Y and W wiring at hea t pump. J umper Y and R for compressor operatio n in T est mode. X X Fan motor relay Jumper G and R for f a n oper ...

  • Carrier AQUAZONE 50HQP072-120 - page 33

    ...

  • Carrier AQUAZONE 50HQP072-120 - page 34

    Manufacturer reserves the right to disco ntinue, or change at any time, specificatio ns or designs without notice and without inc urring obligations. Catalog No . 04-53500077-01 Printed in U .S.A. Form 50HQP-C1SI Pg 34 11-10 Replaces: Ne w Copy right 2010 Carrier Cor poration ...

  • Carrier AQUAZONE 50HQP072-120 - page 35

    CL-1 ST A RT -UP CHECKLIST CUSTOMER: ___________________________ JOB NAME: _ _____________________________________ _ MODEL NO.:___________________________ SERIAL NO.:____________________ DA TE: _________ I. PRE-ST ART -UP DOES THE UNIT VOL T AGE CORRESPOND WI TH THE SUPPL Y VOL T AGE A V AILABLE? (Y/N) HA VE THE POWER AND CONTROL WIRING CONN ECTION ...

  • Carrier AQUAZONE 50HQP072-120 - page 36

    Manufacturer reserves the right to disco ntinue, or change at any time, specificatio ns or designs without notice and without inc urring obligations. Catalog No . 04-53500077-01 Printed in U .S.A. Form 50HQP-C1SI Pg CL-2 11-10 Replaces: Ne w Copy right 2010 Carrier Cor poration - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ...

Manufacturer Carrier Category Air Conditioner

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