Instruction/ maintenance manual of the product SH20L30-B Friedrich
Go to page of 16
SH15L30-B SH20L30-B HG-SVC-PRTS-07 (3-07) R oom Air Conditioners 60 Hz Mode ls 20 0 7 Ser vi ce & P ar ts Manu al.
2 T ABLE OF CONT EN TS Speci fi cations ...................................................................................................................... ................................... 3 Per formance Data ...................................
3 EV APORA T OR AIR TEMP . DEG. F EV APORA TOR TEMP . DEG. F CONDENSER TEMP . DEG. F Discharge T emp Suction T emp Liquid T emp Super Heat Sub- Cooling OPERA TING PRESSURES ELECTRICAL RA TINGS R-22 REF . Evap CFM Motor RPM BREAKER FUSE Discharge Air T emp.
4 COMPRESSOR WINDING TEST (Figure 2.) Remov e the c ompress or terminal box c over and disconnect the wires from t he terminals. Using an ohmmeter , c heck c ontinuit y across the follow ing: COMPONENT OPERA TION AND TESTING COM PRE SSO RS Compress ors are single phase, 208 /23 0 volt.
5 F AN MOTOR (Figure 4) A 230 volt single phase per manent split capacitor m otor is used to drive the evaporator blower and condenser fan. A running c apacitor is wired acros s the star t and r un terminals of the motor . The motor is totally enc losed and is protected with a line volt- age overload located inter nally of the motor .
6 THERMOST A T A cross ambient ther most at is used to maintain the desire d comfor t level . The ther most at reacts only to a change in temperature at the bulb location. Impor t ant to the succ essful operation of the unit is the posit ion of the sensing bulb in relation to the evaporator ( see Figure 8 ) .
7 NOTE: This procedure can be sped up by the use of heat lamps, or by breaking the v acuum with refr igerant o r d r y n i t r o g e n a t 5 , 0 0 0 m i c r o n s . P r e s s u r e s y s t e m t o 5 PSIG and leave in the s ystem a minimum of 10 minutes.
8 TROUBLE SHOOTING PROBLEM POSSIBLE CAUSE TO CORRECT UNIT DO ES NOT RUN. Power disconnected. Check power source. System switch in “ O f f ” posit ion. Set switc h co rrec tly . Branch circuit f use blown or circuit breaker tripped. Replace fuse, reset breaker .
9 TROUBL ESHOOTING ( Continu ed) PROBLEM POSSIBLE CAUSE TO CORRECT COM PRES SOR AT T E M P T S T O ST ART , OR RUNS FO R S H O R T PERIOD S ON L Y . CYCL ES O N OV ER LOA D. Compress or attempts to st ar t before syst em pressures are equal ized. Allow a minimum of t wo (2 ) minutes to allow pres sures to equalize before attempting to star t.
10 TROUBL ESHOOTING ( Continu ed) PROBLEM POSSIBLE CAUSE TO CORRECT F AN M OTOR DOES NOT R U N. Defective switch (On- Of f ). Check co ntinuit y across ter minals 2 and 3. F an capacitor open. Check by substituting a known go od c apacitor of the s ame rating .
11 WIRING DIA GR AM MODELS SH 1 5L30 - B and SH20L30 - B.
12 HAZARDGARD CABINET P ARTS.
13 HAZARDGARD CHASSIS P ARTS.
14 HAZARDGARD P ARTS LIST REF DESCRIPTION P ART NO# MODELS CODE ELECTRICAL P ARTS SH15L30-B SH20L30-B 1 COMPRESSOR 61 193549 1 600 1 COMPRESSOR 61 193550 1 600 2 MOTOR, F AN 61871426 11 1 0 2 MOTOR, F.
15 HAZARDGARD P ARTS LIST REF DESCRIPTION P ART NO# MODELS CODE CHASSIS P ARTS SH15L30-B SH20L30-B 8 HOLDER, THERMOST A T 61829800 1 1 999 1 1 KNOB, CONTROL 61493915 1 1 761 17 DECORA TIVE P ANEL 61822662 1 1 760 22 F AN BLADE, COND. 60542003 1 710 22 F AN BLADE, COND.
HG-SVC-PRTS-07 (3-07) FRIEDRICH AIR CONDITIONING CO. Post Of fi ce Box 1540 · San Antonio, T exas 78295-1540 4200 N. Pan Am Expressway · San Antonio, T exas 78218-5212 (210) 357-4400 · F AX (210) 357-4480 www .friedrich.com Printed in the U.S.A. Friedrich Air Conditioning Company P.
An important point after buying a device Friedrich SH20L30-B (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 SH20L30-B 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 SH20L30-B - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Friedrich SH20L30-B you will learn all the available features of the product, as well as information on its operation. The information that you get Friedrich SH20L30-B will certainly help you make a decision on the purchase.
If you already are a holder of Friedrich SH20L30-B, 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 SH20L30-B.
However, one of the most important roles played by the user manual is to help in solving problems with Friedrich SH20L30-B. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Friedrich SH20L30-B 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
