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Summary of Contents for Friedrich HAZARDGARG R-410A
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Page 1: Room Air Conditioner
2 0 1 0 Hazardous Duty Room Air Conditioner R-410A Models Cool Only SH15M30A SH20M30A HG-ServMan (4-10) -
Page 2: Table Of Contents
Table Of Contents Important Safety Information ... 2-4 Introduction ... 4 Unit Identification ... 5 Hazardgard Application ... 6 Performance Specifications and Installation Data ... 7 Electrical Data ... 8 HazardGard Special Features ... 9 Component Definitions ... 10 Component Testing ... 11-12 R-410A Sealed System Repair Considerations ... -
Page 3: Important Safety Information
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. - Page 4 • Never operate the A/C unit with wet hands. • Use air conditioner on a single dedicated circuit within the specified amperage rating. • Use on a properly grounded outlet only. •...
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Page 5: Introduction
Failure to follow these instructions can result in fire and minor to serious property damage. WATER DAMAGE HAZARDS: • Improper installation maintenance, or servicing of the air conditioner unit, or not following the above Safety Warnings can result in water damage to personal items or property. •... -
Page 6: Unit Identification
UNIT IDeNTIfICATION 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/Performance Data Section RAC Serial Number Identification Guide Serial Number Decade Manufactured Year Manufactured Month Manufactured... -
Page 7: Hazardgard Application
For more than 30 years, the Friedrich Hazardgard has endured some of the toughest and most unforgiving operating conditions imaginable. Time-tested in the eld where it counts, Hazardgard is trusted by professionals who have to get the job done. -
Page 8: Performance Specifications And Installation Data
SPeCIfICATIONS AND PeRfORMANCe DATA Cooling Performance Data EVAPORATOR AIR TEMP. DEG. F CONDENSER TEMPERATURE Discharge DEG. F Temp. Drop F. SH15M30A SH15M30A Speci cations Cooling Capacity Model (BTU/Hr.- AHAM) Volts Rated SH15M30A 14500/14000 SH20M30A 19500/19000 Installation Information Depth Overall Model Height Width SH15M30A... -
Page 9: Electrical Data
Your air conditioner must be connected to a power supply with the same A.C. voltage and frequency (hertz) as marked on the data plate located on the chassis. Only alternating current (A.C.), no direct current (D.C.), can be used. -
Page 10: Hazardgard Special Features
Electrodeposited epoxy primer and alkyd enamel, both oven-baked for an attractive, long-lasting finish. • 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. Control Panel Function Control (Power) This switch is a double pole, single throw toggle switch. -
Page 11: Component Definitions
COMPONeNT DefINITIONS A. Mechanical components Plenum assembly Diffuser with directional louvers used to direct the conditioned airflow. Blower wheel Attaches to the indoor side of the fan motor shaft and is used for distributing unconditioned, room side air through the heat exchanger and delivering conditioned air into the room. Slinger fan blade Attaches to the outdoor side of the fan motor shaft and is used to move outside air through the condenser coil, while slinging condensate water out of the base pan and onto the condenser coil, thus lowering the temperature and... -
Page 12: Component Testing
COMPONeNT TeSTING FAN MOTOR A 230 volt single phase permanent split capacitor motor is used to drive the evaporator blower and condenser fan. A running capacitor is wired across the start and run terminals of the motor. The motor is totally enclosed and is protected with a line volt-age overload located internally of the motor. - Page 13 THERMOSTAT A cross ambient thermostat is used to maintain the desired comfort level. The thermostat reacts only to a change in temperature at the bulb location. Important to the successful operation of the unit is the position of the sensing bulb in relation to the evaporator. SENSING BULB LOCATION RANGE: Thermostat...
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Page 14: R-410A Sealed System Repair Considerations
Introduce liquid refrigerant charge into the high side of the system. • For low side pressure charging of R-410A, use a charging adaptor. • Use Friedrich approved R-410A filter dryers only. WARNING Refrigeration system under high pressure Do not puncture, heat, expose to flame or incinerate. -
Page 15: Sealed Refrigeration System Repairs
R-410A SeALeD RefRIGeRATION SYSTeM RePAIRS SEALED SYSTEM REPAIRS TO COOL-ONLY MODELS REQUIRE THE INSTALLATION OF A LIQUID LINE DRIER. EQUIPMENT REQUIRED: 1. Voltmeter 2. Ammeter 3. Ohmmeter 4. E.P.A. Approved Refrigerant Recovery System 5. Vacuum Pump (capable of 200 microns or less vacuum.) 6. - Page 16 Method Of Charging / Repairs The acceptable method for charging the HazardGard system is the Weighed in Charge Method. The weighed in charge method is applicable to all units. It is the preferred method to use, as it is the most accurate. The weighed in method should always be used whenever a charge is removed from a unit such as for a leak repair, compressor replacement, or when there is no refrigerant...
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Page 17: Undercharged Refrigerant Systems
WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death. Undercharged Refrigerant Systems An undercharged system will result in poor performance (low pressures, etc.) in both the heating and cooling cycle. -
Page 18: Restricted Refrigerant System
Restricted Refrigerant System Troubleshooting a restricted refrigerant system can be difficult. The following procedures are the more common problems and solutions to these problems. There are two types of refrigerant restrictions: Partial restrictions and complete restrictions. A partial restriction allows some of the refrigerant to circulate through the system. -
Page 19: Compressor Checks
COMPReSSOR CHeCKS WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death. -
Page 20: Compressor Replacement
Single Phase Resistance Test Remove the leads from the compressor terminals and set the ohmmeter on the lowest scale (R x 1). Touch the leads of the ohmmeter from terminals common to start (“C” to “S”). Next, touch the leads of the ohmmeter from terminals common to run (“C”... - Page 21 After all refrigerant has been recovered, disconnect suction and discharge lines from the compressor and remove compressor. Be certain to have both suction and discharge process tubes open to atmosphere. Carefully pour a small amount of oil from the suction stub of the defective compressor into a clean container.
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Page 22: Routine Maintenance
ROUTINe MAINTeNANCe WARNING ELECTRIC SHOCK HAZARD Turn off electric power before inspections, maintenances, or service. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death. -
Page 23: Routine Maintenance
ROUTINe MAINTeNANCe (Continued) NOTICE Do not drill holes in the bottom of the drain pan or the underside of the unit. Not following this notice could result in damage to the unit or condensate water leaking inappropriately which could cause water damage to surrounding property. -
Page 24: Performance Test Data Sheet
DATE: _______________ MODEL:_______________ SERIAL:________________ IS THERE A FRIEDRICH SLEEVE INSTALLED? IS THERE A FRIEDRICH OUTDOOR GRILL INSTALLED? IS MAINTENANCE BEING PERFORMED? If NO is checked use back of sheet for explanation ELECTRICAL: LINE VOLTAGE (STATIC) START UP VOLTAGE AMPERAGE DRAW... -
Page 25: Troubleshooting
TROUBLESHOOTING Problem Power disconnected. Branch circuit fuse blown or circuit breaker tripped. Unit does not run Loose or disconnected wiring at switch. Inoperative switch (On-Off). Problem Dirty filter. Restricted airflow. Inoperative thermostat. Evaporator coil Short of refrigerant. freezes up Partially restricted capillary. Inoperative fan motor. - Page 26 NOTE: If Inside Coil Freezes Up Your Friedrich Hazardgard is designed not to freeze with outdoor temperatures as low as 45°F (7°C). If the indoor coil should ice over while cooling, set the thermostat to the warmest position until the ice on the coil is gone. Setting the thermostat to a slightly warmer position will probably keep ice from forming on the coil.
- Page 27 TROUBLESHOOTING Problem Defective switch (On-Off) Fan capacitor open. Inoperative fan motor. Fan motor does Incorrect wiring of fan circuit. not run. Solid state relay open. Seized motor bearings. Bound fan blade or blower wheel. Problem Switch (On-Off) Defective (On-Off) switch or does not cut fan defective relay.
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Page 28: Wiring Diagram And Schematic
eLeCTROMeCHANICAL CONTROL COOL ONLY MODeLS: SH15M30-A SH20M30-A... -
Page 29: Warranty
HazardGard 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 its performance and reliability; or (c) any repairs or servicing as a result of using parts not sold or approved by Friedrich. -
Page 30: Technical Assistance
TECHNICAL SUPPORT CONTACT INFORMATION 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 · 877-599-5665 x 846 · FAX (210) 357-4490 Email: tac@friedrich.com www.friedrich.com... - Page 32 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 HG-ServMan (4-10) Printed in the U.S.A.
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