Friedrich HAZARDGARG R-410A User Manual

R-410A ModelsService Manual 2010HG-ServMan (4-10)SH15M30ASH20M30ACool OnlyHazardous DutyRoom Air Conditioner

Permanent Split-Capacitor, totally enclosed fan motor to assure efcient operation even under adverse electrical conditions. Motor has a sp

COMPONENT DEFINITIONSA. Mechanical componentsB. Electrical componentsC. Hermetic componentsPlenum assembly Diffuser with directional louvers used to d

FAN MOTOR SWITCH, ON-OFF Line side SOLID STATE RELAY Load side LED indicates contacts closed when litFAN MOTORA 230 volt single phase permanent

RANGE: Thermostat (Part No. 618-225-02) 60° F ( ± 2° ) to 90° F( ± 4° ) SENSING BULB LOCATION THERMOSTAT A cross ambient thermostat is used

• R-410A pressure is approximately 60% higher than R-22 pressure.• R-410A cylinders must not be allowed to exceed 125 F, they may leak or rupture.•

Proper refrigerant charge is essential to proper unit operation. Operating a unit with an improper refrigerant charge will result in reduced performan

3. Install a process tube to sealed system. 4. Make necessary repairs to system. 5. Evacuate system to 200 microns or less. 6. Weigh in refrig

Undercharged Refrigerant Systems An undercharged system will result in poor performance (low pressures, etc.) in both the heating and cooli

Restricted Refrigerant System Troubleshooting a restricted refrigerant system can be difcult. The following procedures are the more common prob

Locked Rotor Voltage (L.R.V.) Test Locked rotor voltage (L.R.V.) is the actual voltage available at the compressor under a stalled condition. Single P

Table Of Contents Important Safety Information ...

Many compressor failures are caused by the following conditions: 1. Improper air ow over the evaporator. 2. Overcharged refrigerant sys

3. After all refrigerant has been recovered, disconnect suction and discharge lines from the compressor and remove compressor. Be certai

ROUTINE MAINTENANCE AIR FILTER Clean the unit air intake lter at least every 300 to 350 hours of operation. Clean the lters with a mild detergent i

ROUTINE MAINTENANCE (Continued) Do not drill holes in the bottom of the drain pan or the underside of the unit. Not following this

ROOM AIR CONDITIONER UNIT PERFORMANCE TEST DATA SHEETDATE: _______________ MODEL:_______________ SERIAL:________________ YES

TROUBLESHOOTINGProblem Possible Cause Possible SolutionPossible SolutionPossible SolutionPossible SolutionPossible SolutionUnit does not runPower disc

Problem Possible Cause Possible SolutionPossible SolutionPossible SolutionCompressor attempts to start, or runs for short periods only. Cycles on over

Problem Possible Cause Possible SolutionPossible SolutionPossible SolutionPossible SolutionFan motor does not run.Defective switch (On-Off) Check cont

ELECTROMECHANICAL CONTROLCOOL ONLY MODELS:SH15M30-ASH20M30-A27

Friedrich Air Conditioning CompanyP.O. Box 1540 San Antonio, TX 78295210.357.4400www.friedrich.comHAZARDGARD®ROOM AIR CONDITIONERSLIMITED WARRANTYLIMI

IMPORTANT SAFETY INFORMATIONThe information contained in this manual is intended for use by a qualied service technician wh

FRIEDRICH AIR CONDITIONING CO. Post Ofce Box 1540 · San Antonio, Texas 78295-1540 4200 N. Pan Am Expressway · San Antonio, Texas 78218-5212 (210) 35

HG-ServMan (4-10) FRIEDRICH AIR CONDITIONING CO. Post Ofce Box 1540 · San Antonio, Texas 78295-1540 4200 N. Pan Am Expressway · San Antonio, Texas

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 co

PROPERTY DAMAGE HAZARDSFIRE DAMAGE HAZARDS:Read the Installation/Operation Manual for this air conditioning unit prior to operating.•Use air conditio

Serial Number Decade Manufactured L=0 C=3 F=6 J=9 A=1 D=4 G=7 B=2 E=5 H=8 A K A R 00001 Production Run Number Year Man

UL Listed for use in Class I, Division 2, Groups A, B, C and D hazardous locations.Hazardgard is specically designed to cool living quarters, storag

SPECIFICATIONS AND PERFORMANCE DATACooling Performance DataEVAPORATOR AIR TEMP. DEG. FCONDENSER TEMPERATURE DEG. FDischarge TempSuction TempSuper Heat

ELECTRICAL DATAELECTRICAL REQUIREMENTSELECTRIC SHOCK HAZARD WARNINGTurn off electric power before service or installation.All electrical connect