Instruction/ maintenance manual of the product ZQ05C10 Friedrich
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—2— CONTENTS 1. PREF A CE ...................................................................................................................................................3 1.1 FEA TURES...........................................................
—3— 1. PREF A CE This ser vice man ual provides v ar ious service information, including the mechanical and electr ical parts, etc. This room air conditioner was manuf actured and assembled under a strict quality control system. The refrigerant is charged at the factory .
—4— 1.3 LOCA TIONS OF CONTROLS 1.4 SAFETY PRECA UTIONS 1. When ser vicing, set the RO T AR Y SWITCH to Off and unplug the power cord. 2. Obser ve the original lead dress. If a shor t circuit is f ound, replace all par ts which hav e been ov erheated or damaged by the short cir- cuit.
— 5 — 2. DISASSEMBL Y INSTR UCTIONS 2.1 MECHANICAL P AR TS 2.1.1 FRONT GRILLE 1. Disconnect the unit from source of power . 2. Remov e the two knobs by pulling them off . Using a screwdriv er , remov e the screw that secures the front grille to control board.
— 6 — 2.2 AIR HANDLING P AR TS 2.2.1 AIR GUIDE UPPER 1. Disconnect the unit from the pow er source . 2. Remov e the front grille. (Ref er to Section 2.1.1) 3. Remov e the cabinet. (Refer to Section 2.1.2) 4. Rem o v e the control panel. (Ref er to Section 2.
— 7 — 2.2.3 MO T OR 1. Disconnect the unit from the pow er source . 2. Remov e the front grille. (Ref er to Section 2.1.1) 3. Remov e the cabinet. (Refer to Section 2.1.2) 4. Rem o v e the control panel. (Ref er to Section 2.1.3) 5. Rem o v e the upper air guide .
— 8 — 2.3.2 COMPRESSOR 1. Remov e the front grille and cabinet. (Ref er to Section 2.1) 2. Discharge the refrigerant by using a refrigerant recov er y system. 3. Remov e the ov erload protector . (Ref er to Section 2.3.1) 4. After discharging the unit completel y , unb r aze the suction and discharge pipes at the compressor connections.
— 9 — 2.3.6 PO WER CORD 1. Disconnect the unit from source of power . 2. Remov e the front grille. (Ref er to Section 2.1.1) 3. Remov e the cabinet. (Refer to Section 2.1.2) 4. Rem o v e a scr e w that secures control panel to base pan. (Ref er to Section 2.
2.4.2 EV APORA T OR 1. Remov e the cabinet. 2. Discharge the refrigerant by using a refrigerant recov er y system. 3. Rem o v e the upper air guide .(Re f er to Section 2.2.1) 4. After discharging the refrigerant completely , unb r a z e the interconnecting tube at the evaporator connections.
— 11 — Equipment needed: V acuum pump , charging cylinder , manif old gauge, brazing equipment, pinch-off tool capab le of making a vapor proof seal, leak detector , tubing cutter , hand tools to remov e components and ser vice v alve .
— 12 — 3 . T R OUBLESHO O TING GUIDE 3 .1 OUTSIDE DIMENSIONS (unit: inches ) (14 9 / 16 ") (12 1/4 ") (14 9 / 16 ") (12 1/4 ") (1 5 / 32 ") (4 3 / 4 ") (1 3 / 32 ") (13 5 / 8 ") (18 9/16 ") (1 21 / 32 ") (1 21 / 32 ") (6 3/32 ") (0.
— 13 — 3 .2 PIPING SYSTEM Figure 32 is a b r ief desc r iption of the impo r tant components and their function in what is called the ref r ige r ation system. This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle.
— 14 — 3 .3 T R OUBLESHO O TING GUIDE In gene r al, possi b le trou b le is classified in t w o categories. The one is called Starting Failure which is caused b y an electrical defect. The other is Ineffective Air Con- ditioning caused b y a de f ect in the ref r ige r ation circuit and/or improper application.
— 15 — Fails to Start Improper thermostat setting Loose ter minal connection Improper wiring Che c k p o w er sourc e . Drop of power v oltage. Capacitor check. Replacement. Che c k control s witch setting. Compressor f ails only to star t. De f ect of compressor or capacitor .
— 16 — ROOM AIR CONDITIONER V OL T A GE LIMITS NAME PLA TE RA TING MINIMUM MAXIMUM 115V ± 10% 103.5V 126.5V COMPLAINT CA USE REMED Y F an motor will not run. No pow er Check v oltage at outlet. Correct if none. P ower supply cord Check v oltage to rotar y s witch.
— 17 — COMPLAINT CA USE REMED Y F an motor noise. F an If crac ked, out of balance , or par tially missing, replace it. Blow er If crac ked, out of balance , or par tially missing, replace it. Loose set screw Tighten it. W o r n bea r ings If kno c king sounds conti n ue when r unning replace the moto r .
— 18 — COMPLAINT CA USE REMED Y Compressor cycles on F an motor If not running, deter mine the cause. Replace if ov er load. required. Condenser air flow Remo ve the cabinet, inspect the interior surf ace restriction of the condenser . If restricted, clean carefully with a vacuum cleaner (do not damage fins) or brush.
— 19 — 4 . CIRCUIT DI A GRAM 1 2 6 7 5 3854AR2330A COMP. MOTOR ROCKER SWITCH YL BR THERMOSTAT OLP BR R BL RD BK OR(BR) CAPACITOR F H C YL ROTARY SWITCH 2H L M BK BR RD BL BK POWER INPUT BK(BR) (Plain) WH(BL) (Ribbed) GN(GN/YL) RD BL YL OR(BR) 4 6 8 1 3 5 7 BL RD BK BR WIRING DIAGRAM SYNC.
— 20 — 5 . EXPLODED VIEW 152302 149410 147581 147582-2 147582-1 135313 352390-1 135312 130410 359012 W48602 354210 349480 352390 149980 559011 346811 554030 W48602 130910 266003 264110 269310 W0CZ.
LocNo FRIEDRICH DESCRIPTION REMARK 13041 0 67302921 Base Assy Single R 13091 0 67303709 Cabinet Assy Single R 13531 2 67306003 Grille Assy Front R 13531 3 67304200 Grille Assy Inlet R 13550 0 67300309 Cover R 14758 1 67304600 Link R 147582- 1 67304501 Louver Vertical 2 ea.
— 22 — MEMO.
— 23 — MEMO.
Post Office Box 1540 • 4200 N. Pan Am Expressway • San Antonio, Texas 78295-1540 • (210) 357-4400 • FAX (210) 357-4490 FRIEDRICH AIR CONDITIONING CO. Visit our web site at www.friedrich.com P/NO.:3828A21017A Use F actor y Cer tified P ar ts...
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