Pentair 33WC Instruction Manual

Water-Cooled Indoor aIr CondItIoner

33WC Model

INSTRUCTION MANUAL

Rev. L

© 2013 Pentair Equipment Protection 87976540

P/N 10-1008-63

TABLE OF CONTENTS

HANDLING & TESTING THE AIR CONDITIONER ........................................................................................................................3

INSTALLATION INSTRUCTIONS ..................................................................................................................................................4

TECHNICAL INFORMATION ......................................................................................................................................................... 4

Design Data ................................................................................................................................................................................................ 4

DIMENSIONAL DRAWING.......................................................................................................................................................................... 4

PRINCIPLES OF OPERATION ......................................................................................................................................................5

Mounting Gasket ........................................................................................................................................................................................ 5

TEMPERATURE CONTROL ..........................................................................................................................................................6

WATER USAGE .............................................................................................................................................................................6

Condenser .................................................................................................................................................................................................. 6

Manual Reset High Pressure Limit Switch ............................................................................................................................................... 6

Water Valve ................................................................................................................................................................................................. 6

Water .......................................................................................................................................................................................................... 6

MAINTENANCE ............................................................................................................................................................................7

Compressor ............................................................................................................................................................................................... 7

Evaporator Blower ..................................................................................................................................................................................... 7

Refrigerant Loss ........................................................................................................................................................................................ 7

Freezing and Draining the System ............................................................................................................................................................ 7

Components List ........................................................................................................................................................................................ 8

WARRANTY ................................................................................................................................................................................10

HOLD HARMLESS ......................................................................................................................................................................11

NOTE: Some of the information in this manual may not apply if a special unit was ordered. If
additional drawings for a special unit are necessary, they have been inserted. Contact Pentair
Equipment Protection if further information is required.

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© 2013 Pentair Equipment Protection

87976540

RECEIVING THE AIR CONDITIONER

Inspect the air conditioner. Check for concealed damage that may have occurred during shipment. Look for
dents, scratches, loose assemblies, etc. Damage evident upon receipt should be noted on the freight bill. Damage
should be brought to the attention of the delivering carrier -- NOT to Pentair Equipment Protection -- within
15 days of delivery. Save the carton and packing material and request an inspection. Then file a claim with the
delivering carrier.

Pentair Equipment Protection cannot accept responsibility for freight damages; however, we will assist you in any
way possible.

HANDLING & TESTING THE AIR CONDITIONER

TEST FOR FUNCTIONALITY BEFORE MOUNTING THE AIR CONDITIONER TO THE ENCLOSURE.
If it is necessary to place the air conditioner in a horizontal position after unpacking, be certain it is placed in an

upright, vertical or mounting position for a minimum of five (5) minutes before operating.

CAUTION

Do not attempt to operate the air conditioner while it is horizontal
or on its side, back or front. The refrigeration compressor is filled
with lubricating oil. This will cause permanent damage to the air
conditioner and also voids the warranty.

Refer to the nameplate for proper electrical current requirements, then connect power cord to a properly
grounded power supply. Minimum circuit ampacity should be at least 125% of the amperage shown in the design
data section for the appropriate model. No other equipment should be connected to this circuit to prevent
overloading.

Connect to clean, pressurized water supply and provide drain.
Operate the air conditioner for five (5) to ten (10) minutes. No excessive noise or vibration should be evident

during this run period. The evaporator blower (enclosure air), and the compressor should be running.
The compressor is provided with automatic reset thermal overload protection. This thermo-switch is located and

mounted inside the plastic enclosure clipped to the compressor. The only time this switch should operate is when
the compressor overheats due to ambient air temperatures exceeding nameplate rating or if enclosure dissipated
heat loads exceed the rated capacity of the air conditioner. The thermal overload switch will actuate and stop
compressor operation. The blower will continue to operate and water will continue to flow for a short period. The
compressor will restart after it has cooled to within the thermal overload cut-in temperature setting.

The unit will also shut down if water supply is interrupted. See WATER USAGE on page 6.

87976540

© 2013 Pentair Equipment Protection

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INSTALLATION INSTRUCTIONS

1. Inspect air conditioner. Verify functionality before mounting the air conditioner, see HANDLING &
TESTING THE AIR CONDITIONER on page 3.

2. Using the cutout dimensions shown in this manual or the cutout template printed on the units
shipping carton, prepare the air “IN” and air “OUT” openings, and mounting bolt hole pattern for
the enclosure.

3. Using the gasket kit provided, install gaskets to air conditioner. See Mounting Gasket on page 5
for proper location.

4. Mount air conditioner on enclosure using mounting bolts and screws provided. “EZ” mount tabs
can be used to hold unit on enclosure while mounting in place. Connect water inlet and outlet
fittings to a clean pressurized water supply. Allow unit to remain upright for a minimum of five (5)
minutes before starting. Caution: Air conditioner must be in upright position during operation.

5. Refer to top of nameplate for electrical requirements. Connect the power cord to a properly
grounded power supply. Use of an extension cord is not recommended. Electrical circuit should be
fused with slow blow or HACR circuit breaker.

TECHNICAL INFORMATION

DESIGN DATA

Model Voltage Hertz

330216GWXXX 115 50/60 5.0/4.3 1 2500/2500 90 0.5 85
330226GWXXX 230 50/60 3.1/2.8 1 2500/2500 90 0.5 85

330416GWXXX 115 50/60 6.0/5.8 1 3800/4000 90 0.5 85
330426GWXXX 230 50/60 3.3/3.2 1 3800/4000 90 0.5 85

XXX will be replaced with a three-digit number designating all desired options. Consult the factory for specific model numbers

Full Load

Amps

Phase BTU/Hr.

Maximum
°F Water
Temperature

Maximum
Water
Usage
(GPM)

Shipping
(lbs/kg)

DIMENSIONAL DRAWING

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© 2013 Pentair Equipment Protection

89045090

87976540