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Carrier AQUAZONE 50PSW036-360 Installation And Service Instructions Manual

Water-to-water water source heat pump with puron refrigerant (r-410a)
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CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1,2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Step 1 - Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 - Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
• STORAGE
• PROTECTION
Step 3 - Locate Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Step 4 - Mount Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Step 5 - Connect Piping. . . . . . . . . . . . . . . . . . . . . . . . . 5
• WATER SUPPLY AND QUALITY
• WATER LOOP APPLICATIONS
• UNIT LOAD PIPING
Step 6 - Wire Electrical Connections . . . . . . . . . . . . 7
• EXTERNAL LOOP POWER CONNECTION
• 380-V OPERATION
• WATER FREEZE PROTECTION
• ACCESSORY CONNECTIONS
• WATER SOLENOID VALVES
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . .13,14
Complete C Control Jumper Settings. . . . . . . . . . . 13
Complete C Control DIP Switches. . . . . . . . . . . . . . 13
Deluxe D Control Jumper Settings . . . . . . . . . . . . . 13
Deluxe D Control DIP Switches . . . . . . . . . . . . . . . . 13
Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-16
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Unit Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 14
Flow Regulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Cleaning and Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . . 16
Heat Exchanger Well Systems . . . . . . . . . . . . . . . . 16
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16,17
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500073-01
Installation, Start-Up, and
Service Instructions
Printed in U.S.A.
Water-to-Water Water Source Heat Pump
with PURON
Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Page
Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18,19
Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Checking System Charge . . . . . . . . . . . . . . . . . . . . . . . 19
Refrigerant Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 19-21
50PSW START-UP CHECKLIST . . . . . . . . . . . CL-1,CL-2
IMPORTANT: Read the entire instruction manual before
starting installation.

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can
be hazardous due to system pressure and electrical compo-
nents. Only trained and qualified service personnel should
install, repair, or service air-conditioning equipment.
Untrained personnel can perform basic maintenance func-
tion of cleaning coils. All other operations should be performed
by trained service personnel. When working on air-condition-
ing equipment, observe precautions in the literature, tags and
labels attached to the unit, and other safety precautions that
may apply.
Improper installation, adjustment, alteration, service, main-
tenance, or use can cause explosion, fire, electrical shock or
other conditions which may cause personal injury or property
damage. Consult a qualified installer, service agency, or your
distributor or branch for information or assistance. The
qualified installer or agency must use factory-authorized kits or
accessories when modifying this product. Refer to the individ-
ual instructions packaged with the kits or accessories when
installing.
Follow all safety codes. Wear 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 attached to the unit. Consult
local building codes and the National Electrical Code (NEC,
U.S.A.) for special installation requirements.
Understand the signal words - DANGER, WARNING,
and CAUTION. DANGER identifies the most serious hazards
which will result in severe personal injury or death. WARN-
ING signifies hazards that could result in personal injury or
death. CAUTION is used to identify unsafe practices, which
would result in minor personal injury or product and property
damage.
Form 50PSW-C1SI
AQUAZONE™
50PSW036-360
®
Refrigerant (R-410A)
Pg 1
10-10
50 Hz
Page
Replaces: New

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Summary of Contents for Carrier AQUAZONE 50PSW036-360

  • Page 1: Table Of Contents

    Catalog No. 04-53500073-01 Printed in U.S.A. Water-to-Water Water Source Heat Pump with PURON Test Mode ........16 Page Retry Mode.

  • Page 2: General

    Turn off accessory heater power if applicable. Install lock- out tag. GENERAL The Aquazone™ 50PSW water source heat pump (WSHP) is a single-package vertically mounted unit with electronic con- trols designed for year-round cooling and heating. IMPORTANT: The installation of water source heat pump...
  • Page 3 2.5 cm 2.5 cm SIZES 036,060 OVERALL CABINET (mm) 50PSW Source (Outdoor) UNIT SIZE Depth Width Height Water In 036,060 1344 LEGEND HWG — Hot Water Generator HACR — Heating, Air Conditioning, and Refrigeration NOTES: 1. Dimensions shown in centimeters unless noted otherwise. 2.

  • Page 4: Inspect Unit

    Left Side View 114.6 Load Refrig. Circuit Access Panel Side Optional (Single Unit) 91cm Additional Service Access PROTECTION — Once the units are properly positioned on the jobsite, they must be covered with either a shipping carton, vinyl film, or an equivalent protective covering. Open ends of pipes stored on the jobsite must be capped.

  • Page 5: Step 3 - Locate Unit

    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 fittings for water connections to prevent annealing and out-of-round leak problems which are typically associated with high temperature brazed connections.
  • Page 6 CONDITION MATERIAL* Scaling Potential — Primary Measurement Above the given limits, scaling is likely to occur. Scaling indexes should be calculated using the limits below. pH/Calcium Hardness Method Index Limits for Probable Scaling Situations (Operation outside these limits is not recommended.) Scaling indexes should be calculated at 150 F for direct use and HWG applications, and at 90 F for indirect HX use.

  • Page 7: Step 6 - Wire Electrical Connections

    Step 6 — Wire Electrical Connections WARNING To avoid possible injury or death due to electrical shock, open the power supply disconnect switch and secure it in an open position during installation. Install lockout tag. CAUTION Use only copper conductors for field-installed electrical wiring.
  • Page 8 a50-8621...

  • Page 12: 220-V Operation

    L2 L3 Grnd Power Distribution Block Transformer Contactor -CC1 Contactor -CC2 Fig. 8 — Typical Field Wiring EXTERNAL LOOP POWER CONNECTION — If the unit is to be connected to an external loop pump or flow controller, connect the pump to the loop pump terminal block PB1. The maximum power handling is 4 amps at 240-v.

  • Page 13: Field Selectable Inputs

    Stage 2, W1 is used for heating Stage 1 and O/W2 is used for heating Stage 2. Select ON for heat pump applications. In heat pump mode, Y1 used is for compressor Stage 1, Y2 is used for compressor Stage 2, W1 is used for heating Stage 3 or emergency heat, and O/W2 is used for RV (heating or cooling) depending upon switch 4 setting.

  • Page 14: Start-Up

    4. Operate each unit in the cooling cycle. See Table 6 for unit entering water temperatures. 5. Operate each heat pump in the heating cycle immediately after checking cooling cycle operation. NOTE: A time delay will prevent the compressor from re-starting for approximately 5 minutes.

  • Page 15: Cleaning And Flushing

    Table 7 — Heat Exchanger Pressure Drop UNIT SIZES 036-120 PRESSURE DROP (kPa) 50PSW UNIT SIZE –1 C 10 C Source/Outdoor Coax 0.28 11.7 0.43 28.3 23.4 0.57 49.0 41.4 0.47 10.3 0.71 27.6 23.4 0.95 47.6 42.8 0.95 11.7 1.42 30.3 26.2...

  • Page 16: Cooling Tower/Boiler Systems

    Table 8 — Approximate Fluid Volume (L) per 30 M of Pipe PIPE DIAMETER (in.) [mm] VOLUME (gal.) [L] Copper 1 [25.4] 1.25 [31.8] 1.5 [38.1] Rubber Hose 1 [25.4] Polyethylene IPS SDR11 1 IPS SDR11 IPS SDR11 IPS SDR11 2 IPS SDR11 IPS SCH40 IPS SCH40...

  • Page 17: Retry Mode

    Upon entering Test mode, the status LED (light-emitting di- ode) will flash a code representing the last fault. For diagnostic ease at the thermostat, the alarm will also cycle during Test mode. The alarm relay will cycle on and off similar to the sta- tus LED to indicate a code representing the last fault, at the thermostat.

  • Page 18: Service

    Proper water treatment can minimize tube fouling and pitting. If such conditions are anticipated, water treatment analysis is recommended. Refer to the Carrier System Design Manual, Part 5, for general water conditioning information. Follow all safety codes. Wear safety glasses and rubber gloves when using inhibited hydrochloric acid solution.

  • Page 19: Checking System Charge

    but take care to prevent liquid from being carried over by the gases. Warm solution acts faster, but cold solution is just as effec- tive if applied for a longer period. GRAVITY FLOW METHOD — Do not add solution faster than vent can exhaust the generated gases.
  • Page 20 AI R COI L AIRFLOW AIRFLO W ( °C) ( °C) THERMIST OR FP 2 a50-8163 CONDENSA TE OVERFLO W (CO) AIR COI L FREEZ E PROTECTIO N LEGEND COAX — Coaxial Heat Exchanger Airflow Refrigerant Liquid Line Flow EXP ANSION COAX VA LV E FP 1...
  • Page 21 RV coil voltage to push valve. Thermostat setup Check for ‘O’ RV setup not ‘B’. Thermostat wiring Check O wiring at heat pump. Jumper O and R for RV coil. Low refrigerant charge Check superheat and subcooling. Restricted metering device Check superheat and subcooling.
  • Page 22 Copyright 2010 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500073-01 Printed in U.S.A. Form 50PSW-C1SI Pg 22 10-10 Replaces: New...

  • Page 23: 50Psw Start-Up Checklist

    CUSTOMER:___________________________ MODEL NO.:___________________________ LOOP TYPE: ___________________________ I. PRE-START-UP DOES THE UNIT VOLTAGE CORRESPOND WITH THE SUPPLY VOLTAGE AVAILABLE? (Y/N) HAVE THE POWER AND CONTROL WIRING CONNECTIONS BEEN MADE AND TERMINALS TIGHT? (Y/N) HAVE WATER CONNECTIONS BEEN MADE AND IS FLUID AVAILABLE AT HEAT EXCHANGER? (Y/N) HAS PUMP BEEN TURNED ON AND ARE ISOLATION VALVES OPEN? (Y/N) HAS CONDENSATE CONNECTION BEEN MADE AND IS A TRAP INSTALLED? (Y/N)
  • Page 24 SUBCOOLING = DISCHARGE SATURATION TEMPERATURE – LIQUID LINE TEMPERATURE (DEG C) *Use 500 for water, 485 for antifreeze. Copyright 2010 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500073-01 Printed in U.S.A.

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