TECHNICAL & SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGE ·························2
2. PART NAMES AND FUNCTIONS ········2
3. SPECIFICATIONS·································5
4. OUTLINES AND DIMENSIONS··········53
5. WIRING DIAGRAM·····························55
6. REFRIGERANT SYSTEM DIAGRAM ······57
7. DATA ···················································63
8. MICROPROCESSOR CONTROL·······72
9. TROUBLESHOOTING ························78
10. DISASSEMBLY PROCEDURE ···········87
11. PARTS LIST ········································90
12. OPTIONAL PARTS··············Back cover
No. OC281
REVISED EDITION-B
INDOOR UNIT
REMOTE CONTROLLER
MITSUBISHI ELECTRIC
12
11
10
9
8
7
6
5
4
3
2
1
29
28
27
26
25
24
23
22
21
20
19
18
TIMER
TEMP
TIMER/TEMP.
UP
DOWN
POWER
COOL
ON/OFF
MODE
SELECT
FAN
SPEED
TIMER
MODE
DRY
HEAT
HIGH
LOW
AUTO
STOP
START
g
Ceiling Concealed
Series SEH/SE
Indoor unit
[Model names]
[Service Ref.]
SEH-1.6AR
SEH-1.6AR.TH
SEH-1.6AR
1
.TH
SEH-2AR
SEH-2AR.TH
SEH-2.5AR
SEH-2.5AR.TH
SE-1.6AR
SE-1.6AR.TH
SE-1.6AR
1
.TH
SE-1.6AR.TH-T
SE-1.6AR
1
.TH-T
SE-2AR
SE-2AR.TH
SE-2AR.TH-T
SE-2.5AR
SE-2.5AR.TH
SE-2.5AR.TH-T
• New specification table has been added
on page 11 for the indoor unit of 60Hz
power supply corresponding to multi
type outdoor units.
• Please void OC281 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-1.6VR.TH, SUH-1.6VR2.TH,
SUH-2VR.TH, SUH-2VR
1
.TH,
SUH-2VR
2
.TH,
SUH-2.5VR.TH,
SU-1.6NR.TH,
SU-2NR.TH,
SU-2.5NR.TH,
SU-1.6VR.TH, SU-1.6VR2.TH,
SU-2VR.TH, SU-2VR
1
.TH,
SU-2.5VR.TH,
SU-1.6VR.TH-T, SU-1.6VR2.TH-T,
SU-2VR.TH-T,
SU-2VR
1
.TH-T,
SU-2.5VR.TH-T
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SPLIT-TYPE, AIR CONDITIONERS
MITSUBISHI ELECTRIC
12
11
10
9
8
7
6
5
4
3
2
1
29
28
27
26
25
24
23
22
21
20
19
18
TIMER
TEMP
TIMER/TEMP.
UP
DOWN
POWER
COOL
ON/OFF
MODE
SELECT
FAN
SPEED
TIMER
MODE
DRY
FAN
HIGH
LOW
AUTO
STOP
START
SE-1.6, 2, 2.5AR.TH
SE-1.6AR
1
.TH
SE-1.6, 2, 2.5AR.TH-T
SE-1.6AR
1
.TH-T
SEH-1.6, 2, 2.5AR.TH
SEH-1.6AR
1
.TH
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