Friedrich SH15L30-A user manual

User manual for the device Friedrich SH15L30-A

Device: Friedrich SH15L30-A
Category: Air Conditioner
Manufacturer: Friedrich
Size: 0.31 MB
Added : 8/26/2013
Number of pages: 20
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Summary of the content on the page No. 1

Service & Parts Manual
2005
Room Air Conditioners
50 & 60 Hz Models
SH15L30-A
SH20L30-A
SH20L50-A
HG-SVC-PRTS-05 (4-05)

Summary of the content on the page No. 2

TABLE OF CONTENTS PAGE Specifi cations ...................................................................................................................................3 Performance Data ............................................................................................................................ 3 Component Operation & Testing ...................................................................................................... 4 Compressors ................................

Summary of the content on the page No. 3

3 Performance Data: Cooling EVAPORATOR AIR EVAPORATOR OPERATING R-22 BREAKER ELECTRICAL RATINGS TEMP. DEG. F TEMP. DEG. F PRESSURES REF. FUSE CONDENSER Discharge Suction Liquid Super Sub- Evap Motor TEMP. Locked Temp Temp Temp Heat Cooling CFM RPM Discharge Temp. Amps Amps Charge 60 Hertz DEG. F E(in) E(out) Suction Discharge Rotor Air Drop F. Cool Heat in OZ. Amps Amps 60 Hz Models SH15L30-A 54 26 52 56 206 129 61 108 16 98 76 258 8.2 - - 28.5 363 1100 15 SH20L30-A 46 34 46 46 125 196 52

Summary of the content on the page No. 4

COMPONENT OPERATION AND TESTING FIGURE 2 COMPRESSOR WINDING TEST WARNING DISCONNECT ELECTRICAL POWER TO THE UNIT BEFORE SERVICING OR TESTING COMPRESSORS Compressors are single phase, 208/230 volt. All compressor motors are permanent split capacitor type, using only a running capacitor across the start and run terminal. All compressors are internally spring mounted and Testing Procedures externally mounted on rubber isolators. 1. Terminal "C" and "S" - no continuity - open Line Voltage Ov

Summary of the content on the page No. 5

GROUND TEST FAN MOTOR (Figure 4) Use an ohmmeter set on its highest scale. Touch one A 230 volt single phase permanent split capacitor motor is used to drive the evaporator blower and condenser lead to the compressor body (clean point of contact, fan. A running capacitor is wired across the start and as a good connection is a must) and the other probe run terminals of the motor. in turn to each compressor terminal. (See Figure 3.) If a reading is obtained, the compressor is grounded T

Summary of the content on the page No. 6

SYSTEM CONTROL SWITCH (Figure 6) CAPACITOR – TEST 1. Remove the capacitor from the unit. This switch is double pole, single throw. Check for continuity between terminals 2 and 3, and 5 and 6. 2. Check for visual damage such as bulges, cracks, or leaks. 3. For dual rated capacitors, apply an ohmmeter lead to the common (C) terminal and the other probe to FIGURE 6 SWITCH, ON-OFF the compressor (HERM) terminal. A satisfactory capacitor will cause a defl ection on the pointer, then gradually

Summary of the content on the page No. 7

TEST Remove the wires from the thermostat. Turn the Note: The temperature must be within the range listed thermostat to its coldest position. Check to see if to check the thermostat. Refer to the troubleshooting there is continuity between the two terminals. Turn the section in this manual for additional information on thermostat to its warmest position. Check continuity thermostat testing. to see if the thermostat contacts open. 7

Summary of the content on the page No. 8

LOW AMBIENT BYPASS VALVE (Figure 9) SEALED REFRIGERATION SYSTEM REPAIRS The HazardGard unit is designed to operate at low outside ambient temperatures. This is accomplished by EQUIPMENT REQUIRED: the use of a bypass valve installed in the refrigeration circuit. The valve is connected between the discharge 1. Voltmeter line at the compressor and the suction process tube. The valve responds to suction pressure which, when 2. Ammeter reduced in the system, causes the valve to open and 3.

Summary of the content on the page No. 9

HERMETIC COMPONENT REPLACEMENT NOTE: This procedure can be sped up by the The following procedure applies when replacing use of heat lamps, or by breaking the vacuum components in the sealed refrigeration circuit or with refrigerant or dry nitrogen at 5,000 microns. repairing refrigerant leaks. (Compressor, condenser, Pressure system to 5 PSIG and leave in the sys- evaporator, capillary tube, refrigerant leaks, etc.) tem a minimum of 10 minutes. Recover refriger- 1. Recover the refriger

Summary of the content on the page No. 10

ROTARY COMPRESSOR SPECIAL REFRIGERANT CHARGE TROUBLESHOOTING AND SERVICE 1. The refrigerant charge is extremely critical. Measure the charge carefully and as exactly as possible to Basically, troubleshooting and servicing rotary com- the nameplate charge. pressors is the same as on the reciprocating compres- sor with only a few exceptions. 2. The correct method for charging the rotary is to introduce liquid refrigerant into the high side of the 1. Because of the spinning motion of the rotar

Summary of the content on the page No. 11

TROUBLESHOOTING PROBLEM POSSIBLE CAUSE TO CORRECT Power disconnected. Check power source. System switch in “Off” Set switch correctly. position. Replace fuse, reset breaker. If repeats, check fuse Branch circuit fuse blown or or breaker size. Check for shorts in unit wiring and circuit breaker tripped. UNIT DOES NOT RUN. components. Inoperative system switch. Test for continuity. Loose or disconnected wiring Check wiring and connections. at switch. Connect per wiring diagram. Inoperative

Summary of the content on the page No. 12

TROUBLESHOOTING (Continued) PROBLEM POSSIBLE CAUSE TO CORRECT Compressor attempts to start Allow a minimum of two (2) minutes to allow pressures to before system pressures are equalize before attempting to start. equalized. Check voltage with unit operating. Check for other Low or fl uctuating voltage. appliances on the circuit. Unit should be on separate COMPRESSOR circuit for proper voltage, and be fused separately. ATTEMPTS TO Incorrect wiring. Connect per wiring diagram. START, OR R

Summary of the content on the page No. 13

TROUBLESHOOTING (Continued) PROBLEM POSSIBLE CAUSE TO CORRECT Defective switch (On-Off). Check continuity across terminals 2 and 3. Check by substituting a known good capacitor of the Fan capacitor open. same rating. Inoperative fan motor. Direct test fan motor. FAN MOTOR DOES NOT RUN. Incorrect wiring of fan circuit. Connect per wiring diagram. Relay open. Replace Relay. Check for seized motor bearings. Rotate by hand, add oil, if noisy, replace. Bound fan blade or blower wheel. Adjust for p

Summary of the content on the page No. 14

WIRING DIAGRAM MODELS SH15L30-A, SH20L30-A, SH20L50-A 14

Summary of the content on the page No. 15

HAZARDGARD CABINET PARTS 15

Summary of the content on the page No. 16

HAZARDGARD CHASSIS PARTS 16

Summary of the content on the page No. 17

HAZARDGARD PARTS LIST REF DESCRIPTION PART NO# MODELS CODE ELECTRICAL PARTS 1 COMPRESSOR 61193549 1 600 1 COMPRESSOR 61193550 1 600 1 COMPRESSOR 61193565 1 600 2 MOTOR, FAN 618714261110 2 MOTOR, FAN 61871427 1110 2 MOTOR, FAN 61871450 1110 5 SWITCH, ON-OFF DPST 60935300 1 1 1 130 * INSULATOR, ELECTRICAL 61829700 1 1 1 399 * RELAY, SOLID STATE 61108800 2 2 2 399 6 THERMOSTAT 61825502 1 1 1 120 7 CAPACITOR 20/7.5 440 V. 61080546 1 1 1 150 7 CAPACITOR 25/7.5 440 V 61080547 1 1 1 150 * HARNESS,

Summary of the content on the page No. 18

HAZARDGARD PARTS LIST REF DESCRIPTION PART NO# MODELS CODE CHASSIS PARTS 26 SHROUD, CONDENSER 618036011720 26 SHROUD, CONDENSER 61804901 11 720 27 BRACE, COND.SHROUD 61802600 33 3 722 22 FAN BLADE, COND. 605420031710 22 FAN BLADE, COND. 60542004 11 710 23 BLOWER WHEEL, EVAP. 606106161700 23 BLOWER WHEEL, EVAP. 60610617 11 700 30 SCROLL 618149051743 30 SCROLL 61817505 11 743 29 BLOWER FRONT 618173001742 29 BLOWER FRONT 61817400 11 742 35 PLENUM ASSEMBLY 61831005 11 1 753 17 DECORATIVE PANEL 618

Summary of the content on the page No. 19

19

Summary of the content on the page No. 20

Use Factory Certifi ed Parts. 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) 357-4480 www.friedrich.com HG-SVC-PRTS-05 (4-05) Printed in the U.S.A.


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