Hitachi RAC-50W Service Manual

SERVICE MANUAL
TECHNICAL INFORMATION
FOR SERVICE PERSONNEL ONLY
RAK-15QPD RAK-35RPD
RAK-18RPD RAK-42RPD
RAK-25RPD RAK-50RPD
This manual describes only points that differ from
RAM-33NP2B（PM NO.0581E）
RAM-40NP2B（PM NO.0582E）
RAM-53NP2B,RAM-53NP3B（PM NO.0583E）
RAM-68NP3B （PM NO.0584E）
RAM-70NP4B （PM NO.0585E）
RAM-90NP5B （PM NO.0586E）
RAM-110NP6B （PM NO.0587E）
RAC-18WPD,RAC-25WPD,RAC-35WPD,RAC-42WPD,RAC-50WPD（JCH-WH NO.0109E）
for items not described in this manual.
Indoor unit
Single outdoor unit
RAM-33NP2B
RAM-40NP2B
RAM-53NP2B
RAM-53NP3B
Multi
outdoor unit
RAM-68NP3B
RAM-70NP4B
RAM-90NP5B
RAM-110NP6B
SPECIFICATIONS
TYPE
INDOOR UNIT OUTDOOR UNIT INDOOR UNIT
MODEL RAK-18RPD RAC-18W
1 PHASE,50Hz,220-230V
POWER SOURCE
TOTAL INPUT (W
TOTAL AMPERES (A)
COOLING
(KW)
CAPACITY
(B.T.U./h)
TOTAL INPUT (W
TOTAL AMPERES (A)
HEATING
(KW)
CAPACITY
(B.T.U./h)
W
DIMENSIONS
H
(mm)
D
NET WEIGHT
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
Johnson Controls-Hitachi Air Conditioning Wuhu Co., Ltd.
INDOOR UNIT
RAR-6N1
RAK-15QPD RAK-18RPD
- RAC-18WPD
o o
o o
o o
o o
o o
o o
o o
o o
OUTDOOR UNIT I I NDOOR UNIT OUTDOOR UNIT
PD RAK-25RPD RAC-25WPD
1 PHASE,50Hz,220-230V
419 (250 1,010) 549 (250 1,290)
2.46-2.35 3.08-2.95
2.00 (0.90 2.5) 2.50 (0.90 3.10)
6,820 (3,070 8,530) 8,530 (3,070
519 (250 970) 733 (250 1500)
2.93-2.81 3.87-3.71
2.50 (0.90 3.20) 3.40 (0.90 4.40)
8,530 (3,070 10,920) 11,600 (3,070 15,010)
780 750(+65) 780
548
280 280
230 288(+27.5) 230 288(+27.5)
8.5 32.5 8.5
ROOM AIR CONDITIONER
INDOOR UNIT
JCH-WH NO.0108E
RAK-15QPD
RAK-18RPD
RAK-25RPD
REFER TO THE FOUNDATION MANUAL
SPECIFICATIONS ------------------------------------------------------------------- 6
HOW TO USE ---------------------------------------------------------------------- 9
CONSTRUCTION AND DIMENSIONAL DIAGRAM --------------------- 29
MAIN PARTS COMPONENT --------------------------------------------------- 30
WIRING DIAGRAM ---------------------------------------------------------------- 31
CIRCUIT DIAGRAM --------------------------------------------------------------- 33
BLOCK DIAGRAM ----------------------------------------------------------------- 35
BASIC MODE ----------------------------------------------------------------------- 36
REFRIGERATING CYCLE DIAGRAM --------------------------------------- 48
PROCEDURE FOR DISASSEMBLY AND REASSEMBLY-------------
DESCRIPTION OF MAIN CIRCUIT OPERATION ----------------------- 51
SERVICE CALL Q & A ----------------------------------------------------------
VARIOUS SETTINGS -----------------------------------------------------------------
PARTS LIST AND DIAGRAM -------------------------------------------------- 91
RAK-25RPD RAK-35RPD
RAC-25WPD RAC-35WPD
o
o
o
o
o
o
o
o
DC INVERTER
RAK-35RPD RAC-35WPD
1 PHASE,50Hz,220-230V
941 (250 1,460)
4.81-4.60
3.50 (0.90 4.00)
10,580) 11,940 (3,070 13,650)
1,000 (250 1,700)
5.11-4.89
4.20 (0.90 5.00)
14,330 (3,070 17,060)
750(+65) 780 750(+65)
548 548
280
230 288(+27.5)
32.5 8.5 32.5
1
RAK-35RPD
RAK-42RPD
RAK-50RPD
CONTENTS
RAK-42RPD RAK-50RPD
RAC-42WPD RAC-50WPD
o -
o -
o o
o o
o o
o o
o o
o o
I I NDOOR UNIT OUTDOOR UNIT I I NDOOR UNIT OUTDOOR UNIT
RAK-42RPD RAC-42WPD RAK-50RPD
1 PHASE,50Hz,220-230V 1 PHASE,50Hz,220-230V
1,120 (300 1,700) 1,471 (300 2,100)
5.10-4.88 6.69-6.40
4.20 (1.70 5.00) 5.00 (1.90 5.20)
14,330 (5,800 17,060) 17,060 (6,480 17,740)
1,317 (500 2,100) 1,558 (500 2,750)
5.99-5.73 7.09-6.78
5.40 (1.70 6.00) 6.00 (2.20 7.30)
18,430 (5,800 20,470) 20,470 (7,510 24,910)
780 792(+85) 780
600
280 280
230 299(+47) 230
8.5 39 8.5
After installation
49
63
73
-
-
o
o
o
o
o
o
RAC-50W PD
792(+85)
600
299(+47)
39