Hitachi RAC-07CHV1 User Manual

(W)
(A)
(kW)
(B.T.U./h)
(W)
(A)
(KW)
(BTU/H)
W
H
D
TOTAL INPUT
TOTAL AMPERES
CAPACITY
TOTAL INPUT
TOTAL AMPERES
CAPACITY
TYPE
MODEL
POWER SOURCE
COOLING
HEATING
DIMENSIONS
NET WEIGHT
NO. 0079E
SERVICE MANUAL
PM
TECHNICAL INFORMATION
FOR SERVICE PERSONNEL ONLY
1 Ø, 220 – 240 V, 50 Hz
680 – 730 870 – 925
3.2 – 3.1 4.1 – 4.1
2.05 – 2.05 2.50 – 2.50
7,000 – 7,000 8,500 – 8,500
630 – 685 860 – 920
3.0 – 2.9 4.0 – 4.0
2.30 – 2.30 2.94 – 3.00
7,850 – 7,850 10,000 – 10,200
785 700 785 700
265 570 265 570
168 210 168 210
726726
SPECIFICATIONS
CONTENTS
SPECIFICATIONS ------------------------------------------------------------------- 5
CONSTRUCTION AND DIMENSIONAL DIAGRAM ----------------------- 6
NAMES AND FUNCTIONS OF EACH PART ------------------------------- 7
MAIN PARTS COMPONENT --------------------------------------------------- 20
WIRING DIAGRAM ----------------------------------------------------------------- 22
WIRING DIAGRAM OF THE PRINTED WIRING BOARD ------------- 24
BASIC MODE ------------------------------------------------------------------------ 31
DESCRIPTION OF MAIN CIRCUIT OPERATION ------------------------ 35
AUTO SWING FUNCTION ------------------------------------------------------ 40
SERVICE CALL Q & A ----------------------------------------------------------- 41
DIAGNOSIS CHART FOR BREAK-DOWN --------------------------------- 46
REFRIGERATION CYCLE ------------------------------------------------------- 56
PARTS LIST AND DIAGRAM --------------------------------------------------- 57
RAS-07CH1
RAS-09CH1
RAC-07CHV1
RAC-09CHV1
RAS-07CH1/RAC-07CHV1
RAS-09CH1/RAC-09CHV1
REFER TO THE FOUNDATION MANUAL
COOLING UNIT
RAS-07CH1
CONDENSING UNIT
RAC-07CHV1
WALL TYPE
(mm)
(kg)
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
ROOM AIR CONDITIONER
COOLING UNIT + CONDENSING UNIT
NOVEMBER 1997 H.A.P.M.
COOLING UNIT
RAS-09CH1
CONDENSING UNIT
RAC-09CHV1

Hitachi RAC-07CHV1 Specifications

General

Type	Split Air Conditioner
Cooling Capacity	2.0 kW
Power Supply	220-240V, 50Hz
Energy Efficiency Ratio (EER)	3.21
Coefficient of Performance (COP)	3.61
Refrigerant	R410A
Indoor Unit Weight	8 kg
Noise Level (Outdoor)	50 dB
Outdoor Unit Dimensions (W x H x D)	240 mm

Summary

SAFETY DURING REPAIR WORK

SAFETY DURING REPAIR WORK

General safety precautions for service personnel performing repair work.

WORKING STANDARDS FOR PREVENTING BREAKAGE OF SEMICONDUCTORS

WORKING STANDARDS FOR PREVENTING BREAKAGE OF SEMICONDUCTORS

Guidelines for handling semiconductors to prevent damage during maintenance.

MAINTENANCE AND INSPECTION

MAINTENANCE

General procedures for keeping the unit in good working condition.

AIR FILTER

REGULAR INSPECTION

TROUBLESHOOTING AND SERVICE

SERVICE CALL Q & A

Common questions and answers regarding unit operation and potential issues.

Cooling operation

Troubleshooting common issues during cooling mode.

Dehumidifying operation

Diagnosis Chart for Break-Down

Flowcharts to diagnose and identify causes of unit malfunctions.

INSPECTION OF INDOOR UNIT ELECTRICAL

Electrical troubleshooting flow for the indoor unit.

The lightening mode of self-checking lamp.

Explains the meaning of self-checking lamp indicators for diagnostics.