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10-1008-163 

REV.10

 

  

8

The above described shut-down is symptomatic of a clogged or dirty filter, thus causing a reduction in 
cooling air flow across the surface of the compressor and condenser coil. 

 

Do not run the air conditioner for extended periods of time with the filter removed. Particles of dust, lint, 
etc., can plug the fins of the condenser coil which will give the same reaction as a plugged filter. The 
condenser coil is not visible through the filter opening, so protect it with a filter. 

 

Continued operation under the above conditions can and will damage and shorten compressor life. The 
air conditioner is available with an easily removable inlet filter to facilitate necessary cleaning. There 
should be no reason to neglect this necessary maintenance. 

 

How To Remove, Clean or Install a New Inlet Air Filter 

 

RP aluminum washable air filters are designed to provide excellent filtering efficiency with a high dust 
holding capacity and a minimum amount of resistance to air flow. Because they are constructed entirely 
of aluminum they are lightweight and easy to service. Optimum filter performance is maintained by 
recoating the filters after washing with RP Super Filter Coat adhesive. To achieve maximum performance 
from your air handling equipment, air filters should be cleaned on a regular basis. 

 

The inlet air filter is located behind the right side panel. To access filter, pull from slot in top cover. The 
filter may now be cleaned or new filter installed. 

 

Cleaning Instructions: 
1. Flush the filter with warm water from the exhaust side to the intake side. DO NOT USE CAUSTICS. 

 

2. After flushing allow filter to drain. Placing it with a corner down will assure complete drainage. 

 

3. Recoat the filters with RP Super Filter Coat adhesive. When spraying filter do so from both sides for 
maximum concentration of adhesive. 

 

Condenser and Evaporator Fans 

 

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

 

If the condenser fan motor (ambient fan) should fail, it is not necessary to remove the air conditioner from 
the cabinet or enclosure to replace the fan. The condenser fan is mounted on its own bulkhead and is 
easily accessible by opening the front cover. 

 

Caution: Operation of the air conditioner in areas containing airborne caustics or chemicals can rapidly 
deteriorate filters, condenser coils, fans and motors, etc. Contact M

AI

 for special 

recommendations. 

 

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. 
 
 
 
 
 

317-257-6811                       www.McLeanParts.net                        317-257-1590 fax

Summary of Contents for McLean Cooling Technology ProAir CR23

Page 1: ...nology 11611 Business Park Blvd N Champlin MN 55316 USA Tel 763 323 8200 Fax 763 576 3200 www McLeanParts net ProAir Air Conditioner CR23Model Protecting Electronics Exceeding Expectations MAI 5736 North Michigan Road Indianapolis IN 46228 317 257 6811 317 257 1590 fax ...

Page 2: ...ection Then file a claim with the delivering carrier MAI cannot accept responsibility for freight damages however we will assist you in any way possible HANDLING TESTING THE AIR CONDITIONER 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 Neve...

Page 3: ...ng mounting bolts and washers provided to secure unit to enclosure Allow unit to remain upright for a minimum of five 5 minutes before starting Caution Air conditioner must be in upright position during operation Step 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 shou...

Page 4: ... 222 NOTE 1 GASKET KIT FOR MOUNTING TO ENCLOSURE INCLUDED 2 SERVICE CORD TERMINATED WITH APPROPRIATE PLUG CAP 6FT LONG STANDARD 3 XXX WIL BE REPLACED WITH THREE DIGITS DESIGNATING ALL OPTIONS DESIRED CONSULT FACTORY FOR SPECIFIC MODEL NUMBERS 1 GASKET KIT INCLUDED APPLY GASKET TO REAR OF AIR CONDITIONER BEFORE MOUNTING ON ENCLOSURE 2 SERVICE CORD TERMINATED WITH APPROPRIATE PLUG CAP 3 MILLIMETER D...

Page 5: ...it Switch 10 1033 01 10 1033 01 Level II III Transformer 10 1006 94 10 1006 93 Part Description Part No 1 Condenser Coil 23 2001 00 2 Fan Pan 23 2003 00 3 Condenser Blower See Table A 4 Evaporator Coil 23 2002 00 5 Air Filter 23 2004 00 6 Compressor See Table A 7 Cool Relay Lev II III only 10 1005 21 8 Transformer Lev II III only See Table B 9 Heat Relay Lev II III with Electric Heat only 10 1005 ...

Page 6: ...3 Wire Diagram Level 1 CR23 Wire Diagram Level 1 with Electric Heat NOTE For voltage hertz and options not shown in this manual refer to the wiring diagram attached to the unit 317 257 6811 www McLeanParts net 317 257 1590 fax ...

Page 7: ...e Diagram Level II III CR23 Wire Diagram Level II III with Electric Heat NOTE For voltage hertz and options not shown in this manual refer to the wiring diagram attached to the unit 317 257 6811 www McLeanParts net 317 257 1590 fax ...

Page 8: ...d 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 wa...

Page 9: ...nstructions 1 Flush the filter with warm water from the exhaust side to the intake side DO NOT USE CAUSTICS 2 After flushing allow filter to drain Placing it with a corner down will assure complete drainage 3 Recoat the filters with RP Super Filter Coat adhesive When spraying filter do so from both sides for maximum concentration of adhesive Condenser and Evaporator Fans Fan motors require no main...

Page 10: ...ostat Open motor winding Stuck fan motor Obstructed blades 6 Carefully check the compressor for operation motor should cause slight vibration and the outer case of the compressor should be warm YES wait 5 minutes then proceed to step 7 NO possible Defective thermostat Defective capacitor Defective overload Defective relay 7 Make sure the coils are clean Then check evaporator air in and air out tem...

Page 11: ...at start Should be 10 rated voltage Compressor motor stuck Bad relay Bad overload switch Bad run start capacitor Unit blows breakers Under sized breaker fuse or not time delayed Short in system Getting water in enclosure Drain plugged Drain tube kinked Enclosure not sealed allowing humidity in For additional technical information ie amp draw pressures temperatures contact MAI at 317 257 6811 317 2...

Page 12: ...rk Blvd N Champlin MN 55316 USA Tel 763 323 8200 Fax 763 576 3200 www McLeanParts net Protecting Electronics Exceeding Expectations 2008 McLean Midwest Corporation MAI 5736 North Michigan Road Indianapolis IN 46228 317 257 6811 317 257 1590 fax ...

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