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Permanent Split-Capacitor, totally enclosed fan motor 

to  assure  efficient  operation  even  under  adverse 

electrical  conditions.  Motor  has  a  special  stainless 

steel shaft to resist corrosion and a hermetically sealed 

overload for arc-free operation. 

High  capacity  compressor  with  internal  hermetically 

sealed overload. 

Solid-state relay contains transient voltage suppressor 

to  protect  controls  against  transient  voltage  spikes. 

Provides solid state switches for arc-free operation. 

Hot gas bypass low ambient control to permit operation 

without freezing at outdoor ambient temperatures as 

low as 45

°

F (7

°

C).

 

Environmentally sealed on-off switch and gold plated 

contacts in thermostat for corrosion resistance. 

Electrodeposited epoxy primer and alkyd enamel, both 

oven-baked for an attractive, long-lasting finish.  

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Copper tubing/aluminum fin coils. 

Galvanized steel cabinet and base pan, all bonderized. 

Slide-out  chassis  for  easy  installation  in  window  or 

through–the–wall. 

Extra  insulation  inside,  including  completely  insulated 

plenum chamber for quieter, more efficient cooling. 

Entire  unit  test  run  in  environmental  chamber  before 

crating. 

Eight–way air flow control for uniform air circulation. 

Condensate drain with exclusive mosquito trap. 

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 been proven by more than 25 years of successful experience from the Gulf 

of Mexico to the searing sands of the Arabian desert.  

Function Control (Power)

 

This switch is a double pole, single throw toggle switch. 

ON - Turns everything on. 

OFF - Turns everything off.  

Temperature Control 

The knob at the bottom is the thermostat which is a cross 

ambient type used to maintain the desired comfort level. 

The thermostat reacts only to a change in temperature at 

the bulb location - turn the knob clockwise to set cooler, 

counterclockwise for warmer.

 

Friedrich  leads  with  the  first  UL  Listed  Room  Air 

Conditioners  designed  to  cool  living  quarters  and  other 

enclosures situated in hazardous locations where specific 

volatile flammable liquids or gases are handled or used with 

enclosed  containers  or  systems. 

Friedrich  Hazardgard 

room air conditioners are designed to meet the National 

Electrical  Code,  Article  500  requirements  for  Class 

I, Division 2, Groups A, B, C, D Hazardous locations, 

and  are  the  only  air  conditioners  UL  Listed  for  this 

application. THIS UNIT IS LISTED BY UNDERWRITERS 

LABORATORIES  FOR  USE  IN  CLASS  I,  DIVISION 

2,GROUPS A, B, C, D HAZARDOUS LOCATIONS. 

Operating Temperature Code: T3B.  

HAZARDGARD SPeCIAL feATUReS

Control Panel

exclusive

9

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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