Related Manuals for Friedrich Hazardgard SH15M30 Series
Summary of Contents for Friedrich Hazardgard SH15M30 Series
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Page 1: Room Air Conditioner
2 0 1 1 Hazardous Duty Room Air Conditioner R-410A Models Cool Only SH15M30 SH20M30 HG-ServMan (1-11) Last character may vary. -
Page 2: Table Of Contents
Table Of Contents Important Safety Information ........................2-4 Introduction ..............................4 Unit Identifi cation ............................5 Hazardgard Application ..........................6 Performance Specifi cations and Installation Data ..................7 Electrical Data .............................. 8 Hazardgard Special Features ........................9 Component Defi nitions ..........................10 Component Testing .......................... -
Page 3: Important Safety Information
IMPORTANT SAFETY INFORMATION The information contained in this manual is intended for use by a qualifi ed 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. - Page 4 Do not spray or pour water on the return air grille, discharge air grille, evaporator coil, control panel, • and sleeve on the room side of the air conditioning unit while cleaning. Electrical component malfunction caused by water could result in electric shock or other electrically •...
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Page 5: Introduction
PROPERTY DAMAGE HAZARDS FIRE DAMAGE HAZARDS: Read the Installation/Operation Manual for this air conditioning unit prior to operating. • Use air conditioner on a single dedicated circuit within the specifi ed amperage rating. • Connect to a properly grounded circuit only. •... -
Page 6: Unit Identifi Cation
UNIT IDENTIFICATION Model Number Code S H 15 M 3 0 A - A 9th Digit – Engineering Suffi x Indicates Modifi cation (Subject to change) 1st Digit – Function S = Straight Cool, Value Series 8th Digit – Marketing Suffi x Indicates Modifi... -
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 Specifi Cations And Installation Data
SPECIFICATIONS AND PERFORMANCE DATA Cooling Performance Data EVAPORATOR AIR OPERATING BREAKER ELECTRICAL RATINGS R-410A REF. TEMP. DEG. F PRESSURES FUSE CONDENSER Discharge Suction Super Sub- TEMPERATURE Voltage Temp Temp Heat Cooling Discharge Locked Rotor 60 Hertz DEG. F Temp. Drop F. Suction Discharge Amps Cool... -
Page 9: Electrical Data
ELECTRICAL DATA WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. All electrical connections and wiring MUST be installed by a qualifi ed electrician and conform to the National Electrical Code and all local codes which have jurisdiction. Failure to do so can result in personal injury or death. -
Page 10: Hazardgard Special Features
fi nish. 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. -
Page 11: Component Defi Nitions
COMPONENT DEFINITIONS A. Mechanical components Plenum assembly Diffuser with directional louvers used to direct the conditioned airfl ow. 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. -
Page 12: Component Testing
COMPONENT TESTING FAN MOTOR CAPACITORS A 230 volt single phase permanent split capacitor motor is used to drive the evaporator blower and condenser WARNING fan. A running capacitor is wired across the start and run terminals of the motor. ELECTRIC SHOCK HAZARD Turn off electric power before servicing. -
Page 13: Low Ambient Bypass Valve
THERMOSTAT LOW AMBIENT BYPASS VALVE A cross ambient thermostat is used to maintain the desired comfort level. The thermostat reacts only to a WARNING change in temperature at the bulb location. Important to the successful operation of the unit is the position of the HIGH PRESSURE HAZARD sensing bulb in relation to the evaporator. -
Page 14: R-410A Sealed System Repair Considerations
Weigh-in the refrigerant charge into the high side of the system. • 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 fi lter dryers only. -
Page 15: Sealed Refrigeration System Repairs
R-410A SEALED REFRIGERATION SYSTEM REPAIRS IMPORTANT SEALED SYSTEM REPAIRS TO COOL-ONLY MODELS REQUIRE THE INSTALLATION OF A LIQUID LINE DRIER. EQUIPMENT REQUIRED: High Pressure Gauge - (0 to 750 lbs.) 1. Voltmeter 10. Low Pressure Gauge - (-30 to 200 lbs.) 2. - 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...
- Page 17 WARNING WARNING HIGH PRESSURE HAZARD ELECTRIC SHOCK HAZARD Turn off electric power before service or Sealed Refrigeration System contains refrigerant installation. and oil under high pressure. Extreme care must be used, if it becomes Proper safety procedures must be followed, necessary to work on equipment with power and proper protective clothing must be worn applied.
- Page 18 Restricted Refrigerant System Troubleshooting a restricted refrigerant system can be at the metering device entrance to the evaporator. The diffi cult. The following procedures are the more common evaporator in a partial restriction could be partially frosted problems and solutions to these problems. There are two or have an ice ball close to the entrance of the metering types of refrigerant restrictions: Partial restrictions and device.
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Page 19: Compressor Checks
COMPRESSOR CHECKS WARNING WARNING ELECTRIC SHOCK HAZARD ELECTRIC SHOCK HAZARD Turn off electric power before service or Disconnect power to the unit before installation. Extreme care must be used, if it servicing. Failure to follow this warning becomes necessary to work on equipment with could result in serious injury or death. -
Page 20: Compressor Replacement
COMPRESSOR REPLACEMENT Single Phase Resistance Test Remove the leads from the compressor terminals and set Recommended procedure for compressor the ohmmeter on the lowest scale (R x 1). replacement Touch the leads of the ohmmeter from terminals common WARNING 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 SPECIAL PROCEDURE IN THE CASE OF MOTOR suction and discharge lines from the compressor and COMPRESSOR BURNOUT remove compressor. Be certain to have both suction and discharge process tubes open to atmosphere. WARNING Carefully pour a small amount of oil from the suction ELECTRIC SHOCK HAZARD stub of the defective compressor into a clean...
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Page 22: Routine Maintenance
ROUTINE MAINTENANCE AIR FILTER WARNING Clean the unit air intake fi lter at least every 300 to 350 hours of operation. Clean the fi lters with a mild detergent in warm ELECTRIC SHOCK HAZARD water and allow to dry thoroughly before reinstalling. Turn off electric power before inspections, maintenances, or service. -
Page 23: Routine Maintenance
ROUTINE MAINTENANCE (Continued) Discharge Air Plenum NOTICE Slot Return Air Grille Slot 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
ROOM AIR CONDITIONER UNIT PERFORMANCE TEST DATA SHEET DATE: _______________ MODEL:_______________ SERIAL:________________ IS THERE A FRIEDRICH SLEEVE INSTALLED? ____ ____ IS THERE A CHASSIS SEAL GASKET INSTALLED? ____ ____ IS MAINTENANCE BEING PERFORMED? ____ ____ If NO is checked use back of sheet for explanation... -
Page 25: Troubleshooting
TROUBLESHOOTING Problem Possible Cause Possible Solution Power disconnected. Check power source. Replace fuse, reset breaker. If repeats, check fuse Branch circuit fuse blown or circuit or breaker size. Check for shorts in unit wiring and breaker tripped. components. Unit does not run Loose or disconnected wiring at Check wiring &... - 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...
- Page 27 TROUBLESHOOTING Problem Possible Cause Possible Solution Defective switch (On-Off) Check continuity across terminals 2 and 3. Fan capacitor open. Test with capacitor analyzer. Replace if bad. Check power and if okay, perform continuity test. Inoperative fan motor. Replace if bad. Fan motor does Incorrect wiring of fan circuit.
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Page 28: Wiring Diagram And Schematic
ELECTROMECHANICAL CONTROL COOL ONLY MODELS: SH15M30 SH20M30 Last character may vary. -
Page 29: Warranty
HazardGard Room Air Conditioner that has been subject to (a) accident, misuse, fl ood, fi re, 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. 10001 Reunion Place, Ste. 500, San Antonio, TX 78216 (210) 546-0500 877-599-5665 x 261 FAX (210) 546-0731 Email: tac@friedrich.com www.friedrich.com Printed in the U.S.A. - Page 32 FRIEDRICH AIR CONDITIONING CO. 10001 Reunion Place, Ste. 500, San Antonio, TX 78216 P 210-546-0500 | F 210-546-0731 www.friedrich.com Printed in the U.S.A. HG-ServMan (1-11)