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Installation, Start-Up, and Service Instructions
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . .1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Step 1 - Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Step 2 - Check Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
• STORAGE
• PROTECTION
Step 3 - Locate Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Step 4 - Install Drywall . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Step 5 - Install Cabinet and Riser. . . . . . . . . . . . . . . . . . .8
• RISER MATERIAL, SIZING, AND INSTALLATION
• RISER EXPANSION
• RISER CONNECTIONS
• ELECTRICAL-LINE VOLTAGE
• 208/230-VOLT OPERATION
Step 7 - Wire Field Control Connections . . . . . . . . . .15
Step 8 - Clean and Flush System. . . . . . . . . . . . . . . . . .15
Step 9 - Install Hose Kit . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Step 10 - Install Chassis into the Cabinet . . . . . . . . .16
Step 11 - Install Return Panel . . . . . . . . . . . . . . . . . . . . .16
Step 12 - Install Supply Grille . . . . . . . . . . . . . . . . . . . . .17
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17,18
System Checkout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . . . . . . 18,19
DIP Switch Settings and Operation . . . . . . . . . . . . . . . . .18
Standard 24-vac Sequence of Operation. . . . . . . . . . . .19
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19,20
Operating Limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Lockout Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Water Coil Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Fan Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Evaporator Coil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Refrigerant System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21,22
Lockout Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . . . .CL1,CL2
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
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500046-01
Vertical Stack Water Source Heat Pump
with PURON® (R-410A) Refrigerant
Page
Printed in U.S.A.
Form 50VS-1SI
components. Only trained and qualified service personnel
should install, repair, or service air-conditioning equipment.
Untrained personnel can perform basic maintenance func-
tions such as cleaning coils and filters and replacing filters. All
other operations should be performed by trained service per-
sonnel. When working on air-conditioning 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 a local
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)
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.
WARNING signifies hazards that could result in personal inju-
ry or death. CAUTION is used to identify unsafe practices,
which would result in minor personal injury or product and
property damage.
Recognize safety information. This is the safety-alert
symbol (
). When this symbol is displayed on the unit and in
instructions or manuals, be alert to the potential for personal
injury.
WARNING
Electrical shock can cause personal injury or death. Before
installing or servicing system, always turn off main power
to system. There may be more than one disconnect switch.
Turn off accessory heater power if applicable.
GENERAL
This installation and start-up instructions literature is for
Aquazone™ water source heat pump systems.
The 50VS water source heat pump (WSHP) is a vertically
stacked unit 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. It is the responsi-
bility of the installing contractor to determine and comply
with ALL applicable codes and regulations.
Pg 1
311
AQUAZONE™
50VS
10-08
Replaces: New
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Related Manuals for Carrier AQUAZONE 50VS
Summary of Contents for Carrier AQUAZONE 50VS
-
Page 1: Table Of Contents
Turn off accessory heater power if applicable. This installation and start-up instructions literature is for Aquazone™ water source heat pump systems. The 50VS water source heat pump (WSHP) is a vertically stacked unit with electronic controls designed for year-round cooling and heating. -
Page 2: Installation
INSTALLATION Installation, operation and Step 1 — Check Jobsite — maintenance instructions are provided with each unit. Before unit start-up, read all manuals and become familiar with the unit and its operation. Thoroughly check out the system before operation. Complete the inspections and instructions listed below to prepare a unit for installation. - Page 3 RISER TAILPIECE WATER COIL CONNECTION CONNECTION SIZE (FPT) (in.) SIZE (in.) RISERS CONTROL BOX MOTOR /BLOWER OPTIONAL AUTO FLOW REGULATOR LOCATION FACTORY-INSTALLED SUPPLY AND RETURN FEEDERS WITH BALL VALVES HOSE KITS HEAT PUMP CHASSIS CONDENSATE DRAIN PAN FACTORY INSTALLED P-TRAP...
- Page 4 5/8-in. Cabinet Grille Size (in.) W (in.) Height 16 x 14 14 x 12 12 x 10 10 x 8 NOTES: 1. Single deflection grilles include adjustable vertical blades for controlling horizontal path of discharge. 2. Double deflection grilles include adjustable vertical and horizontal blades for controlling horizontal and vertical path of discharge air (recommended).
- Page 5 5/8" Cabinet Grille Size (in.) W (in.) Height 16 x 14 14 x 12 12 x 10 10 x 8 NOTES: 1. The opposed blade damper allows control of air volume (cfm) and path of discharge air. Recommended for applica- tions requiring unequal airflow or side discharge grille(s) with additional top discharge air opening.
- Page 6 STANDARD PERIMETER BYPASS OPTIONAL PERIMETER OPTIONAL LOUVERED ALLEN LOCK, REMOVABLE BYPASS ALLEN LOCK OR ALLEN LOCK, REMOVABLE KEY LOCK, HINGED 26.28 a50-8298 2.95 24.19 21.13 63.15 58.00 55.35 61.11 24.91 17.68 2.38 a50-8300 30.38 * * ROUGH-IN OPENING PLUS 1/4-in. STANDARD PERIMETER BYPASS OPTIONAL PERIMETER OPTIONAL LOUVERED...
- Page 7 STANDARD PERIMETER BYPASS OPTIONAL PERIMETER OPTIONAL LOUVERED ALLEN LOCK, REMOVABLE BYPASS ALLEN LOCK OR ALLEN LOCK, REMOVABLE KEY LOCK, HINGED 32.28 a50-8299 2.95 30.19 27.13 63.90 58.75 58.75 61.86 24.91 19.68 2.38 a50-8301 * ROUGH-IN OPENING PLUS 1/4-in. 24.38 * STANDARD PERIMETER BYPASS OPTIONAL PERIMETER OPTIONAL LOUVERED...
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Page 8: Step 2 - Check Unit
Upon receipt of shipment at Step 2 — Check Unit — the jobsite, carefully check the shipment against the bill of lading. Make sure all units have been received. Inspect the car- ton or crating of each unit, and inspect each unit for damage. Ensure the shipping company makes proper notation of any shortages or damage on all copies of the freight bill. - Page 9 Engineers) Fundamentals Handbook for Riser Sizing. Gener- ally, riser copper type, size, length and insulation thickness are determined by the location of the water source heat pump unit in the building. Chilled water and hot water risers are available in Type-M, Type-L copper, varying diameters from in., and with either no insulation,...
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Page 10: System Piping Arrangements
DIRECT RETURN All riser modifications necessitated by variations in floor-to- floor dimensions including cutting off or extending risers is the sole responsibility of the installing contractor. Additional expansion compensation must be made in the riser system in the field where movement is expected to exceed the factory allowances. -
Page 11: Commercial Water Loop Application
Alcohols and glycols are commonly used as antifreeze; however your local Carrier distributor should be consulted for the antifreeze best suited to your area. Freeze protection should be maintained to 15 F below the lowest expected entering loop temperature. For... - Page 12 In areas with extremely hard water, the owner should be in- formed that the heat exchanger may require additional system maintenance and occasional acid flushing. Water Supply and Quality — Check water supply. Water sup- ply should be plentiful and of good quality. See Table 3 for wa- ter quality guidelines.
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Page 13: Field Power Supply
Step — Wire Field Connections WARNING Electrical shock can cause personal injury or death. When installing or servicing system, always turn off main power to system. There may be more than one disconnect switch. ELECTRICAL–LINE VOLTAGE — All field-installed wir- ing, including electrical ground, must comply with the National Electrical Code (NEC) as well as all applicable local codes. - Page 14 LEGEND BR1 — Fan Relay Speed 1 BR2 — Fan Relay Speed 2 — Compressor Contactor — Condensate Overflow — Compressor Relay — Discharge Air Temperature — Freeze Protection Water Side — Freeze Protection Air Side — High Pressure Switch —...
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Page 15: Step 7 - Wire Field Control Connections
Honeywell TH5320U1001 or TH6320U1000 series thermostat. Refer to instructions pro- vided with remote thermostat for wiring instructions using 2 stages of heating and 2 stages of cooling for a heat pump system. Below are typical thermostat connections and color codes. -
Page 16: Step 10 - Install Chassis Into The Cabinet
Carrier WILL NOT be responsible or liable for damage caused by any water leaks from a field-installed water connection(s). -
Page 17: Step 12 - Install Supply Grille
Step 12 — Install Supply Grille Refer to Fig. 2, 3, and 12 to determine grille size and location based on the type and size of the unit cabinet/chassis combina- tion. Perform the following to install supply grilles over the cabinet discharge openings. -
Page 18: System Checkout
Jumpers and DIP switches on the control board are used to customize unit operation and can be configured in the field. See Tables 10 and 11 for heat pump and BacNet control board DIP switch settings. IMPORTANT: Jumpers and DIP switches should only... -
Page 19: Standard 24-Vac Sequence Of Operation
4. Adjust all valves to their full open positions. Room temperature should be within the minimum-maximum ranges of Table 9. During start-up checks, loop water temperature entering the heat pump should be between 60 and 95 F. 5. Two factors determine the operating limits of the 50VS heat pumps: supply-water temperature and the return-air temperature. -
Page 20: Operating Limits
f. Turn thermostat to “OFF” position. A hissing noise indicates proper functioning of the reversing valve. g. Allow 5 minutes between tests for pressure to equalize before beginning heating test. h. Adjust the thermostat to the lowest setting. Place the thermostat mode switch in the “HEAT” position. -
Page 21: Service
SERVICE WARNING Electrical shock can cause personal injury or death. When installing or servicing system, always turn off main power to system. There may be more than one disconnect switch. WARNING The installation and servicing of air-conditioning equip- ment can be hazardous due to system pressure and electri- cal components. - Page 22 NOTE: Warning LEDs and error codes are found on the system con- trol board. Copyright 2008 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500046-01 Printed in U.S.A.
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Page 23: 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 24: Heating Cycle Analysis
SUBCOOLING = DISCHARGE SATURATION TEMPERATURE – LIQUID LINE TEMPERATURE (DEG F) *Use 500 for water, 485 for antifreeze. Copyright 2008 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500046-01...
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