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© 2013 Pentair Equipment Protection

87976540

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MAINTENANCE

COMPRESSOR

The compressor requires no maintenance. It is hermetically sealed, properly lubricated at the factory and should 

provide years of satisfactory operating service.
Should the refrigerant charge be lost, recharging ports (access fittings) on the suction and discharge sides of the 

compressor are provided for recharging and/or checking suction and discharge pressures.
Under no circumstances should the access fitting covers be loosened, removed or tampered with.
Breaking of seals on compressor access fittings during warranty period will void warranty on hermetic system.
Recharging ports are provided for the ease and convenience of reputable refrigeration repair service personnel 

for recharging the air conditioner.

EVAPORATOR BLOWER

Blower motors require no maintenance. All bearings, shafts, etc. are lubricated during manufacturing for the life 

of the motor.

REFRIGERANT LOSS

Each air conditioner is thoroughly tested prior to leaving the factory to insure against refrigeration leaks. Shipping 

damage or microscopic leaks not found with sensitive electronic refrigerant leak detection equipment during 

manufacture may require repair or recharging of the system. This work should only be performed by qualified 

professionals, generally available through a local, reputable air conditioning repair or service company.
Refer to the data on the nameplate which specifies the type of refrigerant and the charge size in ounces.
Before recharging, make sure there are no leaks and that the system has been properly evacuated into a deep 

vacuum.

FREEZING AND DRAINING THE SYSTEM

The air conditioner can be severely damaged by freezing if  not  

properly drained.  damage due to freezing is not covered by the 

warranty.

WARNING

If the unit is to be shipped to, or stored in an area that experiences climatic extremes, care must be taken to fully 

drain the unit to avoid freezing. The location of the drain is shown in the DIMENSIONAL DRAWING on page 4. 

To completely drain the unit, it is recommended that 100 psi maximum compressed air be applied to the water 

inlet, while lifting the spring of the valve with a screwdriver to allow free passage of water.  An alternate means 

would be to start the air conditioner and allow the refrigeration system pressure to open the valve while air 

pressure is applied to inlet.

Summary of Contents for 33WC

Page 1: ... 2013 Pentair Equipment Protection 87976540 Rev L P N 10 1008 63 Water Cooled Indoor Air Conditioner 33WC Model INSTRUCTION MANUAL ...

Page 2: ...rmation is required 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 ...

Page 3: ...ioner and also voids the warranty CAUTION 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 wa...

Page 4: ... 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 circu...

Page 5: ...der for the air conditioner to restart Operating the air conditioner below the minimum ambient temperature or above the maximum ambient temperatures indicated on the nameplate voids all warranties It is recommended that the warranty section of this manual be read in order to familiarize yourself with parameters of restricted operation The moisture that the enclosure air can contain is limited If m...

Page 6: ...essor operation can be restored by pushing the manual reset button located on the switch WATER VALVE The valve that controls the flow of condensing water is also located behind the front cover This valve modulates the flow of water to the condensing coil Water flow varies according to a variety of loading conditions including electrical load inlet water temperature ambient air temperature cabinet ...

Page 7: ...ic leaks not found with sensitive electronic refrigerant leak detection equipment during manufacture may require repair or recharging of the system This work should only be performed by qualified professionals generally available through a local reputable air conditioning repair or service company Refer to the data on the nameplate which specifies the type of refrigerant and the charge size in oun...

Page 8: ... 00 52 6028 00 52 6028 00 52 6028 00 Mounting Gasket Kit 33 1000 00 33 1000 00 33 1000 00 33 1000 00 Evaporator Fan 12 1012 101 12 1012 102 12 1012 101 12 1012 102 Compressor 10 1016 23 10 1026 74 10 1016 22 10 1026 74 Thermal Overload 10 1007 19 10 1007 57 10 1007 44 10 1007 57 Compressor Relay 10 1028 20 10 1028 07 10 1028 05 10 1028 07 Start Capacitor None 10 1032 09 None 10 1032 09 For additio...

Page 9: ... 2013 Pentair Equipment Protection 87976540 9 NOTES ...

Page 10: ...otective coatings and or options and is in an abnormal or corrosive environment voids the warranty Prolonged operation with dirty filters also voids the warranty Should any part prove defective within the above warranty period the customer may choose to return the defective product that is under warranty to Pentair Equipment Protection for repair at no charge or the customer has the option to repa...

Page 11: ...tair Equipment Protection in writing of any such claim or demand provided further that Pentair Equipment Protection shall have the right and option to undertake and control the entire defense of such claim or demand instituted against the customer or user but limited to the products made or sold by Pentair Equipment Protection through counsel selected by Pentair Equipment Protection and to settle ...

Page 12: ... 2013 Pentair Equipment Protection 87976540 Rev L P N 10 1008 63 Pentair Equipment Protection 2100 Hoffman Way Minneapolis MN 55303 USA 1 763 422 2211 1 763 576 3200 PentairEquipmentProtection com ...

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