TECHNICAL & SERVICE MANUAL
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SPLIT-TYPE, AIR CONDITIONERS
CONTENTS
1. TECHNICAL CHANGE ·························2
2. PART NAMES AND FUNCTIONS ········2
3. SPECIFICATIONS·································4
4. OUTLINES AND DIMENSIONS··········34
5. WIRING DIAGRAM ·····························36
6.
REFRIGERANT SYSTEM DIAGRAM
·······39
7. DATA ···················································43
8. MICROPROCESSOR CONTROL·······47
9. TROUBLESHOOTING ························56
10. 4-WAY AIR FLOW SYSTEM ··············63
11. DISASSEMBLY PROCEDURE···········65
12. PARTS LIST ·······································68
No. OC280
REVISED EDITION-B
INDOOR UNIT
REMOTE CONTROLLER
ON/OFF
RESET
TOO
WARM
TOO
COOL
MODE
AUTO COOL
DRY
HEAT
FAN
VANE
SELECT
TIME
h
ON/OFF
RESET
TOO
WARM
TOO
COOL
MODE
COOL
DRYFAN
FAN
VANE
SELECT
TIME
h
Ceiling Cassettes
Series SLH/SL
Indoor unit
[Model names] [Service Ref.]
SLH-1AR SLH-1AR.TH
SLH-1AR
1.TH
SLH-1.6AR SLH-1.6AR.TH
SLH-1.6AR
1.TH
SLH-2AR SLH-2AR.TH
SLH-2AR
1.TH
SL-1AR SL-1AR.TH
SL-1AR.TH-T
SL-1.6AR SL-1.6AR.TH
SL-1.6AR.TH-T
SL-2AR SL-2AR.TH
SL-2AR.TH-T
SLH-1AR
SLH-1.6AR
SLH-2AR
SL-1AR
SL-1.6AR
SL-2AR
Revision:
•SLH-1AR1.TH, SLH-1.6AR1.TH and
SLH-2AR1.TH are added in REVISED
EDITION-B.
•Please void OC280 REVISED
EDITION-A.
•This manual does not cover the
following outdoor units. When
servicing them, please refer to the
service manual No.OC282 REVISED
EDITION-B and this manual in a set.
SUH-1VR.TH, SUH-1.6VR2.TH,
SUH-2VR1.TH, SUH-2VR2.TH,
SU-1VR.TH, SU-1.6VR2.TH,
SU-2VR1.TH, SU-1VR.TH-T,
SU-1.6VR2.TH-T, SU-2VR1.TH-T
[For SLH- • AR1.TH]
NOTE:
This service manual descrides only for
the indoor unit and the connected outdoor
unit of SUH series. In PUMY series, refer
to the service manual outdoor unit and
“R-CONVERTER UNIT” for PUMY series.
OC280-B-1.qxp 03.5.23 1:02 PM Page 1
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