Table of Contents
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CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1,2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24
Step 1 - Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 - Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
• PROTECTION
Step 3 - Location of Unit . . . . . . . . . . . . . . . . . . . . . . . 10
Step 4 - Mounting the Unit . . . . . . . . . . . . . . . . . . . . . 10
Step 5 - Duct System . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Step 6 - Condensate Drain . . . . . . . . . . . . . . . . . . . . . 11
• VENTING
Step 7 - Piping Connections . . . . . . . . . . . . . . . . . . . 11
Step 8 - Field Power Supply Wiring . . . . . . . . . . . . 12
Step 9 - Field Control Wiring . . . . . . . . . . . . . . . . . . . 14
• WATER SOLENOID VALVES
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-30
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Airflow and External Static Pressure . . . . . . . . . . . 24
FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . 30-33
Complete C Control Jumper Settings. . . . . . . . . . . 30
Complete C Control DIP Switches. . . . . . . . . . . . . . 30
Deluxe D Control Jumper Settings . . . . . . . . . . . . . 30
Deluxe D Control DIP Switches . . . . . . . . . . . . . . . . 30
(HWR) Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33,34
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Start Up System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 33
Unit Start-Up Cooling Mode . . . . . . . . . . . . . . . . . . . . . 33
Unit Start-Up Heating Mode . . . . . . . . . . . . . . . . . . . . . 33
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500034-01
Book 1
4
Tab
5a 5a
Installation, Start-Up, and
Service Instructions
Page
Printed in U.S.A.
Water Source Heat Pump Units
Flow Regulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . . 34
Heat Exchanger Well Systems . . . . . . . . . . . . . . . . 34
OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35,36
Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Units with Aquazone Complete C Control . . . . . . . 35
Units with Aquazone Deluxe D Control . . . . . . . . . . 35
Units with HWR Option. . . . . . . . . . . . . . . . . . . . . . . . . . 35
SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36,37
Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Aquazone Deluxe D Control LED Indicators . . . . . 36
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37,38
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Condensate Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . 37
Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Condensate Drain Cleaning . . . . . . . . . . . . . . . . . . . . . 37
Air Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Checking System Charge . . . . . . . . . . . . . . . . . . . . . . . 38
Refrigerant Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Air Coil Fan Motor Removal . . . . . . . . . . . . . . . . . . . . . 38
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 39-41
Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Control Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
50HQL,VQL 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 50H,V-10SI
Pg 1
AQUAZONE™
50HQL072-120
50VQL080-300
Page
7-07
Replaces: 50H,V-9SI
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Table of Contents
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Related Manuals for Carrier AQUAZONE 50HQL072-120
Summary of Contents for Carrier AQUAZONE 50HQL072-120
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Page 1: Table Of Contents
AQUAZONE™ 50HQL072-120 50VQL080-300 Water Source Heat Pump Units Installation, Start-Up, and Service Instructions Page CONTENTS Flow Regulation....... . . 33 Page Flushing . -
Page 2: General
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 To avoid equipment damage, do not use these units as a follow all warnings or cautions attached to the unit. Consult source of heating or cooling during the construction local building codes and the National Electrical Code (NEC) process. - Page 3 Table 1 — Physical Data — 50HQL072-120 Units UNIT 50HQL NOMINAL CAPACITY (tons) COMPRESSOR(S)* Scroll WEIGHT (lb) Operating Shipping AIR COIL Aluminum Fins, Copper Tubes Total Face Area (sq ft) 6.66 8.33 8.33 Tube Size (in.) Fin Spacing (FPI) Number of Rows REFRIGERANT CHARGE†...
- Page 4 CONNECTIONS a50-8196 ″ FPT Water Outlet ″ FPT Water Inlet ″ FPT Condensate Drain 24” Service Access ″ [2.2] K.O. LEFT INLET High Voltage Access ″ [2.2] K.O. Low Voltage Access LEGEND Filter BSP — Blower Service Panel Bracket CAP — Control Access Panel Shown CSP —...
- Page 5 CONNECTIONS ″ FPT Water Outlet ″ FPT Water Inlet 24” Service ″ FPT Access Condensate Drain LEFT INLET ″ K.O. High Voltage Access ″ DIA. Low Voltage Access LEGEND Filter Bracket BSP — Blower Service Panel Shown CAP — Control Access Panel CSP —...
- Page 6 3/8” Threaded rods Optional Balancing Valve Return Air Dual Blower Optional Low Thermostat Discharge Pressure Drop Wiring Supply Air Unit Water Control Valve Power Power Wiring Insulated supply duct with Water Out at least one 90 deg elbow to reduce air noise Water In Y-Strainer with blow- Ball Valve with...
- Page 7 Air Out Air Out Return Return (backside) 0.75 Front Return Rear Blow LEGEND Rear Return Front Supply BSP — Blower Service Panel CONNECTIONS CAP — Control Access Panel CSP — Compressor Service Panel ″ FPT Water Inlet HWR — Hot Water Reheat NRP —...
- Page 8 Air Out Air Out Air Out Air Out 1.75 Return Air Back Side Return Air Return Air Return Air 0.75 Front Return T op Supply Rear Return T op Supply LEGEND CONNECTIONS BSP — Blower Service Panel CAP — Control Access Panel ″...
- Page 9 Air Out Air Out 1.75 Return Air Back Side Return Air 0.75 LEGEND BSP — Blower Service Panel CONNECTIONS CAP — Control Access Panel CSP — Compressor Service Panel Rear Return T op Supply ″ FPT Water Inlet HWR — Hot Water Reheat NRP —...
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Page 10: Inspect Unit
PROTECTION — Once the units are properly positioned on • Allow enough space for service personnel to perform the jobsite, they must be covered with either a shipping carton, maintenance. vinyl film, or an equivalent protective covering. Open ends of •... -
Page 11: Step 6 - Condensate Drain
Refer to the Horizontal units are not internally trapped, therefore an ex- Carrier System Design Manual for additional information. ternal trap is necessary. Each unit must be installed with its own individual trap and means to flush or blowout the conden- All WSHP units utilize low temperature soldered female sate drain line. -
Page 12: Ground-Water Applications
• Galvanized or steel fittings should not be used at any The installing (or electrical) contractor must make the field time due to corrosion. connections when using field-supplied disconnect. • All plastic to metal threaded fittings should be avoided Operating voltage must be the same voltage and phase as due to the potential to leak. - Page 13 Water Automatic Expansion Control Balance Valve Tank Valve Water Out Water In From Pump Shut-Off Valve Strainer – Field-Installed Accessory (16 to 20 mesh recommended for filter sediment) Boiler Drains Pressure- Temperature Plugs Fig. 7 — Typical Ground-Water Piping Installation Table 3 —...
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Page 14: Step 9 - Field Control Wiring
WATER SOLENOID VALVES — Water solenoid valves may Step 9 — Field Control Wiring be used on variable flow systems and ground water installa- THERMOSTAT CONNECTIONS — The thermostat should tions. A typical well water control valve wiring which can be wired directly to the Aquazone™... - Page 23 Table 4 — Electrical Data — 50HQL072-120 Units VOLTAGE BLOWER MOTOR COMPRESSOR UNIT VOLTAGE TOTAL RANGE MOTOR FACTORY INSTALLED MOCP* 50HQL (3 Ph — 60 Hz) OPTION Standard 10.4 65.5 25.8 28.4 208/230 Large 10.4 65.5 27.0 29.6 Standard 33.0 12.2 13.4 Large...
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Page 24: Pre-Start-Up
a50-6268tf.tif AQUAZONE CONTROL (Complete C Control Shown) NOTE: Low voltage connector may be removed for easy installation. Fig. 13 — Typical Aquazone™ Control Board Fig. 12 — Low Voltage Field Wiring Jumper Locations TERMINAL STRIP P2 PRE-START-UP When the installation is complete, System Checkout —... - Page 25 Table 6 — 50HQL072 Blower Performance Data EXTERNAL STATIC PRESSURE (in. wg) RATED — 0.23 0.26 0.31 0.35 0.39 0.44 0.48 0.53 0.58 0.63 0.68 0.73 0.79 0.84 0.90 1800 — 1015 1052 1088 Turns Open — 0.27 0.31 0.35 0.40 0.44 0.49...
- Page 26 Table 8 — 50HQL120 Blower Performance Data EXTERNAL STATIC PRESSURE (in. wg) RATED 1.10 1.15 1.20 1.25 1.30 1.35 1.40 1.45 1.50 1.54 1.59 1.63 1.68 1.73 1.77 1.82 3400 1014 1043 1072 1102 1129 1156 1183 1209 1234 1260 1285 1309 1333...
- Page 27 Table 10 — 50VQL100 Blower Performance Data EXTERNAL STATIC PRESSURE (in. wg) RATED 0.50 0.56 0.63 0.70 0.77 0.84 0.90 0.97 1.03 1.10 1.17 1.23 1.30 2700 Turns Open 0.57 0.63 0.70 0.78 0.86 0.92 0.99 1.06 1.13 1.20 1.26 1.33 1.40 2900...
- Page 28 Table 12 — 50VQL160 Blower Performance Data EXTERNAL STATIC PRESSURE (in. wg) RATED 0.71 0.79 0.86 0.94 1.02 1.10 1.18 1.26 1.34 1.43 1.51 1.60 1.69 1.78 1.87 1.96 4000 1027 1058 1088 1117 Turns Open 0.89 0.97 1.06 1.14 1.22 1.31 1.40...
- Page 29 Table 14 — 50VQL240 Blower Performance Data EXTERNAL STATIC PRESSURE (in. wg) RATED 0.53 0.60 0.67 0.74 0.81 0.87 0.94 1.01 1.08 1.15 1.21 1.28 1.35 5600 Turns Open 0.54 0.60 0.67 0.74 0.82 0.89 0.98 1.06 1.16 1.22 1.29 1.36 1.43 1.50...
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Page 30: Field Selectable Inputs
Table 16 — 50VQL Unit Blower Performance with Modulating Hot Water Reheat UNITS WITH HWR - ESP LOSS COIL FACE 100 - 120 VELOCITY 080 and 160 and 200 - 240 in. wg in. wg in. wg 0.04 — — 0.06 0.02 —... -
Page 31: Units With Modulating Hot Water Reheat
heat/cool mode, Y1 is used for cooling stage 1, Y2 is used for Table 18 — DIP Switch Block S2 — cooling stage 2, W1 is used for heating stage 1 and O/W2 is Accessory 2 Relay Options used for heating stage 2. Select ON for heat pump applications. In heat pump mode, Y1 used is for compressor stage 1, Y2 is DIP SWITCH POSITION ACCESSORY 2... -
Page 32: Deluxe D Control Accessory Relay
the unit is operating in the dehumidification mode. Water Deluxe D Control Accessory Relay Configura- source heat pumps with HWR should not be used as makeup The following accessory relay settings are applica- tions — air units. These applications should use equipment specifically ble for both Deluxe D controls only: designed for makeup air. -
Page 33: Start-Up
It is important to be Scroll Compressor Rotation — certain compressor is rotating in the proper direction. To determine whether or not compressor is rotating in the proper To avoid equipment damage, DO NOT leave system filled direction: in a building without heat during the winter unless anti- 1. -
Page 34: Flushing
An alternative method is to install a flow control device. In areas where entering loop temperatures Antifreeze — These devices are typically an orifice of plastic material de- drop below 40 F or where piping will be routed through ar- signed to allow a specified flow rate that are mounted on the eas subject to freezing, antifreeze is needed. -
Page 35: Operation
and EH2 are turned off immediately when the Heating Stage OPERATION 3 demand is removed. The control reverts to Heating Stage The unit will not operate until all Power Up Mode — 2 mode. the inputs, terminals and safety controls are checked for Output EH2 will be off if FP1 is greater than 45 F AND normal operation. -
Page 36: System Test
Stage 2. When the call is satisfied at the thermostat the unit Table 24 — Complete C Control Current LED Status will continue to run in Heating Stage 1 until the call is and Alarm Relay Operations removed or satisfied, shutting down the unit. LED STATUS DESCRIPTION OF OPERATION ALARM RELAY... -
Page 37: Service
Table 26 — Aquazone™ Deluxe D Control Current LED Status and Alarm Relay Operations STATUS LED TEST LED DESCRIPTION FAULT LED (Red) ALARM RELAY (Green) (Yellow) Normal Mode Flash Last Fault Code in Memory Open Cycle (closed 5 sec, Normal Mode with PM Flashing Code 8 open 25 sec, …) Deluxe D Control is... -
Page 38: Checking System Charge
Proper water treatment can minimize tube fouling and VENT CAN EXHAUST pitting. If such conditions are anticipated, water treatment GASES CAUSED BY FUNNEL CHEMICAL ACTION. analysis is recommended. Refer to the Carrier System Design Manual, Part 5, for general water conditioning information. 1” PIPE VENT PIPE 5’... -
Page 39: Troubleshooting
TROUBLESHOOTING 90.0 (Fig. 18 and 19, and Table 27) 80.0 When troubleshooting problems with a WSHP, consider the following: 70.0 60.0 A thermistor may be required for single- Thermistor — phase units where starting the unit is a problem due to low 50.0 voltage. - Page 40 Table 27 — Troubleshooting FAULT HEATING COOLING POSSIBLE CAUSE SOLUTION Main Power Problems Green Status LED Off Check line voltage circuit breaker and disconnect. Check for line voltage between L1 and L2 on the contactor. Check for 24 VAC between R and C on controller. Check primary/secondary voltage on transformer.
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Page 41: Troubleshooting
Table 27 — Troubleshooting (cont) FAULT HEATING COOLING POSSIBLE CAUSE SOLUTION Only Compressor Runs Thermostat wiring Check G wiring at heat pump. Jumper G and R for fan operation. Fan motor relay Jumper G and R for fan operation. Check for line voltage across BR contacts. -
Page 42: Manufacturer Reserves The Right To Discontinue, Or Change At Any Time, Specifications Or Designs Without Notice And Without Incurring Obligations
Copyright 2007 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 Catalog No. 04-53500034-01 Printed in U.S.A. Form 50H,V-10SI Pg 42 7-07 Replaces: 50H,V-9SI 5a 5a... -
Page 43: 50Hql,Vql Start-Up Checklist
50HQL,VQL START-UP CHECKLIST CUSTOMER:___________________________ JOB NAME: _______________________________________ MODEL NO.:___________________________ SERIAL NO.:____________________ DATE:_________ 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 44: Manufacturer Reserves The Right To Discontinue, Or Change At Any Time, Specifications Or Designs Without Notice And Without Incurring Obligations
SUBCOOLING = DISCHARGE SATURATION TEMPERATURE – LIQUID LINE TEMPERATURE (DEG F) *Use 500 for water, 485 for antifreeze. Copyright 2007 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book Catalog No.