TECHNICAL & SERVICE MANUAL
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
CONTENTS
1. FEATURES ·······························································2
2. PART NAMES AND FUNCTIONS····························3
3. SPECIFICATIONS·····················································4
4. DATA ·········································································5
5. OUTLINES AND DIMENSIONS······························16
6. REFRIGERANT SYSTEM DIAGRAM ····················18
7. WIRING DIAGRAM·················································19
8. OPERATION FLOW-CHART··································20
9. MICROPROCESSOR CONTROL···························24
10. TROUBLESHOOTING ············································41
11. DISASSEMBLY PROCEDURE ·······························45
12. PARTS LIST····························································48
PKH18FL
PKH24FL
PKH30FL
PKH36FL
No. OC276
REVISED EDITION-A
A
I
R
S
T
A
N
D
A
R
D
2
4
0
•
M
A
N
U
F
A
C
T
U
R
E
R
C
E
R
T
I
F
I
E
D
T
O
A
R
I
A
S
C
O
M
P
L
Y
I
N
G
W
I
T
H
•
C
E
R
T
I
F
I
C
A
T
I
O
N
S
E
C
T
I
O
N
S
O
F
E
Q
U
I
P
M
E
N
T
A
I
R
-
C
O
N
D
I
T
I
O
N
I
N
G
U
N
I
T
A
R
Y
Wall Mounted
Series PKH
[Models]
Indoor unit
Remote controller
MODEL
SELECT
NOT AVAILABLE
SWING
CHECK
FAN
TEST
RUN
˚F
˚C
AMPMSTOP
START
Revision:
●The wrong descriptions in REFRIGERANT
SYSTEM DIAGRAM have been modified.
(Page 18.)
●The wrong descriptions in WIRING DIAGRAM
have been modified.
(Page 19.)
●Restrictor valve and capillary tube have been
added to "Specifications" of heat exchanger.
(Page 48.)
●Please void OC276.
OC276-A-1.qxp 03.11.25 9:04 AM Page 1
