Carrier AQUAZONE 50VQP084-300 Installation And Service Instructions Manual
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Carrier AQUAZONE 50VQP084-300 Installation And Service Instructions Manual

Carrier AQUAZONE 50VQP084-300 Installation And Service Instructions Manual

Vertical large capacity water source heat pumps with puron refrigerant (r-410a) 50 hz
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CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1,2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Step 1 - Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 - Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
• STORAGE
• PROTECTION
Step 3 - Locate Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Step 4 - Mount the Unit . . . . . . . . . . . . . . . . . . . . . . . . . 6
Step 5 - Check Duct System . . . . . . . . . . . . . . . . . . . . 9
• SOUND ATTENUATION
• EXISTING DUCT SYSTEM
Step 6 - Install Condensate Drain . . . . . . . . . . . . . . . 9
• VENTING
Step 7 - Pipe Connections . . . . . . . . . . . . . . . . . . . . . 10
• WATER LOOP APPLICATIONS
Step 8 - Wire Field Power Supply . . . . . . . . . . . . . . 11
• POWER CONNECTION
Step 9 - Wire Field Controls. . . . . . . . . . . . . . . . . . . . 17
• WATER FREEZE PROTECTION
• ACCESSORY CONNECTIONS
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-32
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Airflow and External Static Pressure . . . . . . . . . . . 18
FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . .33,34
Complete C Control Jumper Settings. . . . . . . . . . . 33
Complete C Control DIP Switches. . . . . . . . . . . . . . 33
Deluxe D Control Jumper Settings . . . . . . . . . . . . . 33
Deluxe D Control DIP Switches . . . . . . . . . . . . . . . . 33
Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34-36
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Start Up System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 34
Unit Start-Up Cooling Mode . . . . . . . . . . . . . . . . . . . . . 35
Unit Start-Up Heating Mode . . . . . . . . . . . . . . . . . . . . . 35
Flow Regulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500080-01
Installation, Start-Up, and
Service Instructions
Printed in U.S.A.
Vertical Large Capacity Water Source Heat Pumps
with PURON
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Page
Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . . 36
Heat Exchanger Well Systems . . . . . . . . . . . . . . . . 36
OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36,37
Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37-39
Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39,40
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Condensate Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . 39
Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Condensate Drain Cleaning . . . . . . . . . . . . . . . . . . . . . 39
Air Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Checking System Charge . . . . . . . . . . . . . . . . . . . . . . . 40
Refrigerant Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Air Coil Fan Motor Removal . . . . . . . . . . . . . . . . . . . . . 40
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 40-43
Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Control Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
50VQP 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-
tions of cleaning coils and filters and replacing filters. All other
operations should be performed by trained service personnel.
When working on air-conditioning equipment, observe precau-
tions 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.
Form 50VQP-C1SI
AQUAZONE™
50VQP084-300
®
Refrigerant (R-410A)
Pg 1
11-10
50 Hz
Page
Replaces: New

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Summary of Contents for Carrier AQUAZONE 50VQP084-300

  • Page 1: Table Of Contents

    Installation, Start-Up, and Service Instructions CONTENTS SAFETY CONSIDERATIONS ....1,2 GENERAL ........2 INSTALLATION .

  • Page 2: General

    Water source heat pumps (WSHPs) are single-package ver- tically mounted units with electronic controls designed for year-round cooling and heating. IMPORTANT: The installation of water source heat pump units and all associated components, parts, and accessories which make up the installation shall be in accordance with the regulations of ALL authorities having jurisdiction and MUST conform to all applicable codes.
  • Page 3 UNIT 50VQP COMPRESSOR QUANTITY Factory Charge HFC-410A (kg) per circuit BLOWER MOTOR Blower Motor Quantity Standard Motor (kW) Large Motor (kW) BLOWER No. of Blowers Blower Wheel Size D x W (cm) WATER CONNECTION SIZE FPT (in.) [mm] COAX VOLUME Volume (liters) CONDENSATE CONNECTION SIZE FPT (in.) [mm]...
  • Page 4 ALL CONFIGURATIONS REQUIRE SERVICE ACCESS AREA SHOWN BELOW 19.3 a50-8436 CAP+MSP CAP+MSP SERVICE ACCESS 91 CM FRONT AND BACK LEGEND BSP — Blower Service Panel CAP — Control Access Panel CSP — Compressor Service Panel MSP — Motor Service Panel NRP —...
  • Page 5 ALL CONFIGURATIONS REQUIRE SERVICE ACCESS AREA SHOWN BELOW 19.3 AIR OUT RETURN AIR RETURN AIR OUT Service Access 3’ (91 cm) Front and Back (All Configurations) LEGEND BSP — Blower Service Panel CAP — Control Access Panel CSP — Compressor Service Panel MSP —...

  • Page 6: Inspect Unit

    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. This precaution is especially important in areas where painting, plastering, or spraying of fireproof material, etc.
  • Page 7 4. Remove 4 bolts and take blower glides out. See Fig. 7. a50-8469 Fig. 7 — Remove Bolts and Blower Glides 5. Attach blower glides to blower bottom load brackets as shown in Fig. 8. Use bottom set of holes on blower bot- tom load brackets.

  • Page 8: Control Box/Motor Access Configuration Conversion

    Fig. 14 — Bolt Blower Assembly to Load Brackets 12. Reattach blockoff air handler as shown in Fig. 15. Fig. 15 — Reattach Blockoff Air Handler 13. Put 3 panels back onto unit. See Fig. 16. BLOWER FILLER PANEL a50-8478 C-BOX/MOTOR ACCESS PANEL COMPRESSOR...

  • Page 9: Step 5 - Check Duct System

    4. Loosen belt tension and take belt off. See Fig. 20. 5. Remove bolt-belt adjustment assembly. See Fig. 20. a50-8482 STEP 5 STEP 4 BOLT-BELT ADJUSTMENT ASM Fig. 20 — Remove Belt and Bolt-Belt Adjustment Assembly 6. Move bolt-belt adjustment assembly to opposite side and reattach.

  • Page 10: Step 7 - Pipe Connections

    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 11: Ground-Water Applications Step 8 - Wire Field Power Supply

    • Boiler drains and other valves should be connected using a “T” connector to allow acid flushing for the heat exchanger. • Do not overtighten connections. • Route piping to avoid service access areas to unit. • Use PVC SCH80 or copper piping material. NOTE: PVC SCH40 should not be used due to system high pressure and temperature extremes.
  • Page 12 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 14 a50-8439...
  • Page 15 LEGEND — Control Relay LWT — Leaving Water Temperature Sensor SAT — Supply Air Temperature Sensor SPT — Space Temperature Sensor NOTE: Reversing valve is on in Cooling mode. Fig. 29 — PremierLink™ Controller Applications with Complete C Control LEGEND LWT —...
  • Page 16 Table 3 — 50VQP Unit Electrical Data — Standard Unit 50VQP UNIT VOLTAGE MIN/MAX SIZE (V-Ph-Hz) VOLTAGE 380/420-3-50 360/440 380/420-3-50 360/440 380/420-3-50 360/440 380/420-3-50 360/440 380/420-3-50 360/440 380/420-3-50 360/440 380/420-3-50 360/440 380/420-3-50 360/440 LEGEND — Full Load Amps HACR — Heating, Air Conditioning, and Refrigeration —...

  • Page 17: Installation

    Step 9 — Field Control Wiring THERMOSTAT CONNECTIONS — The thermostat should be wired directly to the Aquazone™ control board. See Fig. 27-31. CAPACITOR COMPLETE C CONTROL COMPRESSOR CONTACTOR TRANSFORMER a50-8197 THERMOSTAT CONNECTION NOTE: Low voltage connector may be removed for easy installation.

  • Page 18: Airflow And External Static Pressure

    9. Condensate line is open and correctly pitched. 10. Transformer switched to lower voltage tap if necessary. 11. Blower rotates freely — shipping support is removed. 12. Blower speed is on correct setting. 13. Air filter is clean and in position. 14.
  • Page 19 1. Unit is factory shipped with standard static sheave and drive at 2.5 turns open. Other speeds require field selection. 2. For applications requiring higher static pressures, contact your local Carrier rep- resentative. Performance data does not include drive losses and is based on sea level conditions.
  • Page 20 1. Unit is factory shipped with standard static sheave and drive at 2.5 turns open. Other speeds require field selection. 2. For applications requiring higher static pressures, contact your local Carrier repre- sentative. Performance data does not include drive losses and is based on sea level conditions.
  • Page 21 1. Unit is factory shipped with standard static sheave and drive at 2.5 turns open. Other speeds require field selection. 2. For applications requiring higher static pressures, contact your local Carrier repre- sentative. Performance data does not include drive losses and is based on sea level conditions.
  • Page 22 1. Unit is factory shipped with standard static sheave and drive at 2.5 turns open. Other speeds require field selection. 2. For applications requiring higher static pressures, contact your local Carrier rep- resentative. Performance data does not include drive losses and is based on sea level conditions.
  • Page 23 1. Unit is factory shipped with standard static sheave and drive at 2.5 turns open. Other speeds require field selection. 2. For applications requiring higher static pressures, contact your local Carrier rep- resentative. Performance data does not include drive losses and is based on sea level conditions.
  • Page 24 1. Unit is factory shipped with standard static sheave and drive at 2.5 turns open. Other speeds require field selection. 2. For applications requiring higher static pressures, contact your local Carrier rep- resentative. Performance data does not include drive losses and is based on sea level conditions.
  • Page 25 1. Unit is factory shipped with standard static sheave and drive at 2.5 turns open. Other speeds require field selection. 2. For applications requiring higher static pressures, contact your local Carrier rep- resentative. Performance data does not include drive losses and is based on sea level conditions.
  • Page 26 1. Unit is factory shipped with standard static sheave and drive at 2.5 turns open. Other speeds require field selection. 2. For applications requiring higher static pressures, contact your local Carrier rep- resentative. Performance data does not include drive losses and is based on sea level conditions.
  • Page 27 1. Unit is factory shipped with standard static sheave and drive at 2.5 turns open. Other speeds require field selection. 2. For applications requiring higher static pressures, contact your local Carrier repre- sentative. Performance data does not include drive losses and is based on sea level conditions.
  • Page 28 1. Unit is factory shipped with standard static sheave and drive at 2.5 turns open. Other speeds require field selection. 2. For applications requiring higher static pressures, contact your local Carrier repre- sentative. Performance data does not include drive losses and is based on sea level conditions.
  • Page 29 1. Unit is factory shipped with standard static sheave and drive at 2.5 turns open. Other speeds require field selection. 2. For applications requiring higher static pressures, contact your local Carrier repre- sentative. Performance data does not include drive losses and is based on sea level conditions.
  • Page 30 1. Unit is factory shipped with standard static sheave and drive at 2.5 turns open. Other speeds require field selection. 2. For applications requiring higher static pressures, contact your local Carrier repre- sentative. Performance data does not include drive losses and is based on sea level conditions.
  • Page 31 1. Unit is factory shipped with standard static sheave and drive at 2.5 turns open. Other speeds require field selection. 2. For applications requiring higher static pressures, contact your local Carrier repre- sentative. Performance data does not include drive losses and is based on sea level conditions.
  • Page 32 1. Unit is factory shipped with standard static sheave and drive at 2.5 turns open. Other speeds require field selection. 2. For applications requiring higher static pressures, contact your local Carrier repre- sentative. Performance data does not include drive losses and is based on sea level conditions.

  • Page 33: Field Selectable Inputs

    2. Select ON for heat pump applications. Com- 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 34: Deluxe D Control Accessory Relay

    3. Balance airflow at registers. 4. Adjust all valves to the full open position and turn on the line power to all heat pump units. 5. Operate unit in the cooling cycle. Room temperature should be approximately 10 to 38 C dry bulb. Loop water temperature entering the heat pumps should be between 10 and 49 F.

  • Page 35: Unit Start-Up Cooling Mode

    Table 15 — 50VQP Unit Operating Limits AIR LIMITS COOLING (C) Minimum Ambient Air db Rated Ambient Air db Maximum Ambient Air db Minimum Return Air db/wb 18/15 Maximum Return Air db/wb 43/28 WATER LIMITS Standard Unit Minimum Entering Water* Maximum Entering Water Extended Range Unit†...

  • Page 36: Antifreeze

    Table 17 — Coaxial Water Pressure Drop 50VQP PRESSURE DROP (kPa) UNIT –1 C 10 C SIZE 0.66 16.5 13.8 1.00 37.9 31.7 1.32 63.4 54.4 0.76 26.2 21.4 1.13 55.1 46.9 1.51 89.6 77.2 0.95 14.5 11.7 1.42 36.5 30.3 1.89 64.8...

  • Page 37: Operation

    Units with Aquazone™ Complete C Control STANDBY — Y and W terminals are not active in Standby mode, however the O and G terminals may be active, de- pending on the application. The compressor will be off. COOLING — Y and O terminals are active in Cooling mode.
  • Page 38 Table 20 — Complete C Control Current LED Status and Alarm Relay Operations LED STATUS DESCRIPTION OF OPERATION Normal Mode Normal Mode with PM Warning Complete C Control is non-functional Fault Retry Slow Flash Over/Under Voltage Shutdown Fast Flash Lockout Flashing Code 1 Test Mode —...

  • Page 39: Retry Mode

    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. CAUTION Follow all safety codes.

  • Page 40: Checking System Charge

    FILL CONDENSER WITH CLEANING SOLUTION. DO NOT ADD SOLUTION MORE RAPIDLY THAN VENT CAN EXHAUST GASES CAUSED BY FUNNEL CHEMICAL ACTION. 1-IN. (25 mm) PIPE VENT PIPE 1.5 m APPROX 1.0 TO 1.2 m PAIL Fig. 36 — Gravity Flow Method GAS VENT PUMP PRIMING...
  • Page 41 AI R COI L AIRFLOW AIRFLO W ( °C) ( °C) THERMIST OR FP 2 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 42 Ensure thermostat set for heating or cooling operation. Unit locked out Check for lockout codes. Reset power. Compressor overload Check compressor overload. Replace if necessary. Thermostat wiring Check Y and W wiring at heat pump. Jumper Y and R for compressor operation in Test mode. SOLUTION...
  • Page 43 POSSIBLE CAUSE Thermostat wiring Check G wiring at heat pump. Jumper G and R for fan operation. Check Y and W wiring at heat pump. Jumper Y and R for compressor operation in Test mode. Fan motor relay Jumper G and R for fan operation. Check for line voltage across BR contacts.
  • Page 46 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. 04-53500080-01 Printed in U.S.A. Form 50VQP-C1SI Pg 46 11-10 Replaces: New...

  • Page 47: 50Vqp Start-Up Checklist

    CUSTOMER:___________________________ MODEL NO.:___________________________ 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 48: Heating Cycle Analysis

    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. 04-53500080-01 Printed in U.S.A.

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