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IMPORTANT SAFETY INFORMATION

The information contained in this manual is intended for use by a qualified service technician who is familiar 

with the safety procedures required for installation and repair, and who is equipped with the proper tools and 

test instruments required to service this product.

Installation or repairs made by unqualified persons can result in subjecting the unqualified person making 

such repairs as well as the persons being served by the equipment to hazards resulting in injury or electrical 

shock which can be serious or even fatal.

Safety warnings have been placed throughout this manual to alert you to potential hazards that may be 

encountered.  If you install or perform service on equipment, it is your responsibility to read and obey these 

warnings to guard against any bodily injury or property damage which may result to you or others. 

 

 

                          

PERSONAL INJURY OR DEATH HAZARDS

ELECTRICAL HAZARDS:

Unplug and/or disconnect all electrical power to the unit before performing inspections, 

• 

maintenance, or service. 

Make sure to follow proper lockout/tag out procedures.

• 

Always work in the company of a qualified assistant if possible. 

• 

Capacitors, even when disconnected from the electrical power source, retain an electrical charge 

• 

potential capable of causing electric shock or electrocution.

Handle, discharge, and test capacitors according to safe, established, standards, and approved 

• 

procedures. 

Extreme care, proper judgment, and safety procedures must be exercised if it becomes necessary 

• 

to test or troubleshoot equipment with the power on to the unit. 

Your safety and the safety of others are very important.

We have provided many important safety messages in this manual and on your appliance. Always read 

and obey all safety messages.

All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury, 

and tell you what will happen if the instructions are not followed.

This is a safety Alert symbol.
This symbol alerts you to potential hazards that can kill or hurt you and others.

All safety messages will follow the safety alert symbol with the word “WARNING” 

or “CAUTION”. These words mean:

You can be killed or seriously injured if you do not follow instructions.

You can receive minor or moderate injury if you do not follow instructions.

A message to alert you of potential property damage will have the 

word “NOTICE”. Potential property damage can occur if instructions 

are not followed.

WARNING

CAUTION

NOTICE

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Содержание 2010 HAZARDGARD SH15M30A

Страница 1: ...R 410A Models Service Manual 2 0 1 0 HG ServMan 4 10 SH15M30A SH20M30A Cool Only Hazardous Duty Room Air Conditioner...

Страница 2: ...ard Special Features 9 Component Definitions 10 Component Testing 11 12 R 410A Sealed System Repair Considerations 13 Sealed Refrigeration System Repairs 14 17 Refrigerant Charging 14 17 Compressor Ch...

Страница 3: ...sistant if possible Capacitors even when disconnected from the electrical power source retain an electrical charge potential capable of causing electric shock or electrocution Handle discharge and tes...

Страница 4: ...contact with liquid refrigerant can result in minor to moderate injury Be extremely careful when using an oxy acetylene torch Direct contact with the torch s flame or hot surfaces can cause serious b...

Страница 5: ...the outside to allow water to drain from the unit Do not drill holes in the bottom of the drain pan or the underside of the unit Failure to follow these instructions can result in result in damage to...

Страница 6: ...g L Nov C Mar F Jun J Sept M Dec 1st Digit Function S Straight Cool Value Series H HazardGard 3rd and 4th Digit Approximate BTU HR Cooling Heating BTU Hr capacity listed in the Specifi cation Performa...

Страница 7: ...obust engineering with design details like 33 thicker fins extend the life of the coil Diamonblue Technology our anti corrosive treatment provides added endurance and protection in coastal or corrosiv...

Страница 8: ...acteristics 60 Hertz Energy Efficiency Ratio AHAM Moisture Removal Air Direction Controls Room Side Air Circulation BTU Hr AHAM Volts Rated Amps AHAM Watts EER Pints Hr CFM SH15M30A 14500 14000 230 20...

Страница 9: ...FPA 70 ARTICLE 501 THE FIELD PROVIDED CIRCUIT PROTECTION DEVICE HACR CIRCUIT BREAKER OR TIME DELAY FUSE MUST NOT EXCEED THE AMPACITY INDICATED ON THE PRODUCT NAMEPLATE IMPORTANT Before you begin the a...

Страница 10: ...15 amp circuit with time delay fuse required Accommodates direct wiring Long lasting 3 8 10mm thick air filter germicidally treated easily removed for cleaning Friedrich Air Conditioning quality has b...

Страница 11: ...ng diagrams and schematics in the back of this service manual Solid State Relay Used to energize the compressor and fan motor Each unit has 2 50 amp 208 230 volt relays Capacitor Reduces line current...

Страница 12: ...n or shorted It will tell whether the capacitor is within its micro farads rating and it will show whether the capacitor is operating at the proper power factor percentage The instrument will automati...

Страница 13: ...valve to open and bypass hot gas from the high pressure side to the low pressure side of the system The hot gas entering the compressor mixes with the cool gas returned through the suction line thus...

Страница 14: ...410A equipment To prevent moisture absorption and lubricant contamination do not leave the refrigeration system open to the atmosphere longer than 1 hour Weigh in the refrigerant charge into the high...

Страница 15: ...failure SealedRefrigerationSystemcontainsrefrigerant and oil under high pressure Proper safety procedures must be followed and proper protective clothing must be worn when working with refrigerants F...

Страница 16: ...EZE HAZARD Proper safety procedures must be followed and proper protective clothing must be worn when working with a torch Failure to follow these procedures could result in moderate or serious injury...

Страница 17: ...evaporator will not be encountered because the refrigerant will boil later if at all Gauges connected to system will usually have higher head pressure depending upon amount of over charge Suction pres...

Страница 18: ...a partial restriction there may be gurgling sounds at the metering device entrance to the evaporator The evaporator in a partial restriction could be partially frosted or have an ice ball close to th...

Страница 19: ...exists mechanically or electrically Single Phase Running and L R A Test NOTE Consult the specification and performance section for running amperage The L R A can also be found on the rating plate Sel...

Страница 20: ...to determine why the compressor failed 19 Recommended procedure for compressor replacement 1 Be certain to perform all necessary electrical and refrigeration tests to be sure the compressor is actuall...

Страница 21: ...ent The use of nitrogen requires a pressure regulator Follow all safety procedures and wear protective safety clothing etc Failure to follow proper safety procedures result in serious injury or death...

Страница 22: ...ems Allow all items to dry thoroughly before reinstalling them ELECTRONIC ELECTRICAL MECHANICAL Periodically at least yearly or bi yearly inspect all control components electronic electrical and mecha...

Страница 23: ...stem periodically at least yearly or bi yearly and clean of all obstructions and debris Clean both areas with an antibacterial and antifungal cleaner Rinse both items thoroughly with water and ensure...

Страница 24: ...AMPS AMPS RUNNING AMPERAGE DRAW AMPS INDOOR TEMPERATURES INDOOR AMBIENT TEMPERATURE F RELATIVE HUMIDITY RH INDOOR COOL HEAT DISCHARGE AIR TEMPERATURE INDOOR F F RETURN AIR TEMPERATURE INDOOR F F OUTD...

Страница 25: ...perative Problem Possible Cause Compressor runs continually Does not cycle off Excessive heat load Test cooling performance of unit Unit undersized Restriction in line Check for partially iced coil Ch...

Страница 26: ...vide proper voltage Switch On Off inoperative Test for continuity Defective capacitor Test with analyzer replace if needed Compressor internal overload open Check voltage at compressor terminals If vo...

Страница 27: ...r blower wheel housing Adjust fan blade or blower wheel clearance Compressor vibrating Check for deteriorated compressor grommets Replace as needed Loose cabinet parts improperly mounted components tu...

Страница 28: ...ELECTROMECHANICAL CONTROL COOL ONLY MODELS SH15M30 A SH20M30 A 27...

Страница 29: ...Room Air Conditioner that has been subject to a accident misuse flood fire or neglect b repairs or alterations outside of the Friedrich Authorized Dealer or Service Center so as to affect adversely it...

Страница 30: ...ox 1540 San Antonio Texas 78295 1540 4200 N Pan Am Expressway San Antonio Texas 78218 5212 210 357 4400 877 599 5665 x 846 FAX 210 357 4490 Email tac friedrich com www friedrich com Printed in the U S...

Страница 31: ......

Страница 32: ...n 4 10 FRIEDRICH AIR CONDITIONING CO Post Office Box 1540 San Antonio Texas 78295 1540 4200 N Pan Am Expressway San Antonio Texas 78218 5212 210 357 4400 FAX 210 357 4490 www friedrich com Printed in...

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