Instruction/ maintenance manual of the product R-410A Friedrich
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R-410A Models Service Manual 2 0 1 1 HG-ServMan (1-1 1) SH15M30 * SH20M30 * Cool Only H a z a r d o u s D u t y R o o m A i r C o n d i t i o n e r * Last character may vary .
T able Of Contents Important Safety Information ..................................................................................................................... 2-4 Introduction ....................................................................
IMPORT ANT SAFETY INFORMA TION 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.
• 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.
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 .
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 A A R 00001 Production Run Number Y ear Manufactured A=1 D=4 G=7 K=0 B=2 E=5 H=8 C=3 F=6 J=9 Product Line R = RAC Month Manu.
U L L i st e d fo r u s e i n C l as s I , D i v i s i o n 2 , G ro u p s A , B , C a n d D h a z a rd o u s lo ca t i o n s . Ha za rdga rd i s s pe c i cal ly d es ig ne d t o coo l l iv in g q u.
SPEC IF IC A TIONS AND PERFORMA NCE D A T A 7 Due to c on tinui ng eng inee rin g res earc h and te chn olo gy , spe c L ¿ c ati ons ar e subje ct to c han ge wit hou t noti ce. M anuf actu red un der U.S. D esi gn Patent DES 3 68 , 30 6 de co rat ive fro nt; Ut ilit y Pate nt 5, 62 2, 05 8.
ELECTRICAL D A T A ELECTRICAL REQUIR EME NTS ELECTRIC SHOCK HAZARD W ARNING Tur n of f el e c tr i c p ow e r be f o re s e rv i c e o r installation. All el ec tri cal con ne ct io ns an d wiri ng MU.
Permanent Split-Capacitor , totally enclosed fan motor to assure effi cient 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.
COMPONENT DEFINITIONS A. Mechanical components B. Electrical components C. Hermetic components Plenum assembly Dif fuser with directional louvers used to direct the conditioned airfl ow .
F AN MOTOR SWITCH, ON-OFF Line side SOLID ST A TE RELA Y Load side LED indicates contacts closed when lit F AN 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 .
RANGE: Thermostat (Part No. 618-225-02) 60 ° F ( ± 2 ° ) to 90 ° F( ± 4 ° ) SENSING BULB LOCA TION THERMOST A T 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.
• 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 performance (capacity) and/or effi ciency . Accordingly , the use of proper charging methods during servicing will insure that the unit is functioning as designed and that its compressor will not be damaged.
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 refrigerant with the proper quantity of R-410A refrigerant. 7. Start unit, and verify performance. 8. Crimp the process tube and solder the end shut.
Underchar ged R efrigerant Systems An undercharged system will result in poor performance (low pressures, etc.) in both the heating and cooling cycle. Whenever you service a unit with an undercharge of refrigerant, always suspect a leak. The leak must be repaired before charging the unit.
R estricted R efrigerant System T roubleshooting a restricted refrigerant system can be diffi cult. 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.
Lock ed Rotor V oltage (L.R.V .) T est Locked rotor voltage (L.R.V .) is the actual voltage available at the compressor under a stalled condition. Single Phase Connections Disconnect power from unit.
Many compressor failures are caused by the following conditions: 1. Improper air fl ow over the evaporator . 2. Overcharged refrigerant system causing liquid to be returned to the compressor . 3. Restricted refrigerant system. 4. Lack of lubrication.
3. 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. 4. Carefully pour a small amount of oil from the suction stub of the defective compressor into a clean container .
R OUTINE MAINTENANCE AIR FIL TER 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 water and allow to dry thoroughly before reinstalling.
Discharge Air Plenum Slot T ab Latches Return air grille Latch Slot T ab Return Air Grille R OUTINE MAINTENANCE (Continued) Do not drill holes in the bottom of the drain pan or the underside of the unit.
ROOM AIR CONDITIONER UNIT PERFORMANCE TEST D A T A SHEET DA TE: _______________ MODEL:_______________ SERIAL:________________ YES NO IS THERE A FRIEDRICH SLEEVE INST ALLED? ____ ____ IS THERE A CHASSI.
TROUBLESHOO TING Problem Possible Cause Possible Solution Possible Solution Possible Solution Possible Solution Possible Solution Unit does not run Power disconnected. Check power source. Branch circuit fuse blown or circuit breaker tripped. Replace fuse, reset breaker .
Problem Possible Cause Possible Solution Possible Solution Possible Solution Compressor attempts to start, or runs for short periods only . Cycles on overload. Compressor attempts to start before system pressures are equalized. Allow a minimum of 3 minutes to allow pressures to equalize before attempting to start.
Problem Possible Cause Possible Solution Possible Solution Possible Solution Possible Solution Fan motor does not run. Defective switch (On-Off) Check continuity across terminals 2 and 3. Fan capacitor open. T est with capacitor analyzer . Replace if bad.
ELECTR OMECHANICAL CONTR OL COOL ONL Y MODELS: SH15M30 * SH20M30 * 27 * Last character may vary ..
Friedrich Air Conditioning Company 10001 Reunion Place, Suite 500 San Antonio, TX 78216 1-800-541-6645 www .friedrich.com HAZARDGARD ® ROOM AIR CONDITIONERS LIMITED W ARRANTY LIMITED ONE YEAR P ARTS W ARRANTY 1.
TECHNICAL SUPPORT CONT ACT INFORMA TION 29 FRIEDRICH AIR CONDITIONING CO. 10001 Reunion Place, Ste. 500, San Antonio, TX 78216 (210) 546-0500 877-599-5665 x 261 F AX (210) 546-0731 Email: tac@friedrich.
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HG-ServMan (1-1 1) 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.
An important point after buying a device Friedrich R-410A (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Friedrich R-410A yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Friedrich R-410A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Friedrich R-410A you will learn all the available features of the product, as well as information on its operation. The information that you get Friedrich R-410A will certainly help you make a decision on the purchase.
If you already are a holder of Friedrich R-410A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Friedrich R-410A.
However, one of the most important roles played by the user manual is to help in solving problems with Friedrich R-410A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Friedrich R-410A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
