TECHNICAL & SERVICE MANUAL
CONTENTS
1. PART NAMES AND FUNCTIONS ········3
2. SPECIFICATIONS·································5
3. OUTLINES AND DIMENSIONS············8
4. WIRING DIAGRAM·······························9
5. REFRIGERANT SYSTEM DIAGRAM ······10
6. TROUBLESHOOTING ························11
7. DISASSEMBLY PROCEDURE···········18
8. PARTS LIST········································21
9. OPTIONAL PARTS ·····························23
INDOOR UNIT
Indoor unit
[Model names]
[Service Ref.]
SEZ-A12AR
SEZ-A12AR.TH
SEZ-A18AR
SEZ-A18AR.TH
SEZ-A24AR
SEZ-A24AR.TH
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
WIRED REMOTE
CONTROLLER
ON/OFF
CENTRALLY CONTROLLED
ERROR CODE
CLOCK
ON
OFF
˚C
CHECK
CHECK MODE
FILTER
TEST RUN
FUNCTION
˚C
1Hr.
NOT AVAILABLE
STAND BY
DEFROST
TEMP.
Ceiling Concealed
Series SEZ
R410A
Model name
indication
Note :
•This manual does not cover the
following outdoor units. When
servicing them, please refer to
the service manual No.OC304
REVISED EDITION-A and this
manual in a set.
• Please void OC303.
Revision :
• “ 2. SPECIFICATIONS ” has
been modified.
No.OC303
REVISED EDITION-A
OC303-A-1.qxp 04.9.21 4:08 PM Page 1
