18
31-5000564 Rev. 1
ENGLISH
Model:
2U18MS2HDA1
3U24MS2HDA1
(Standard connection
for indoor units A,B
& C. Also, showing
optional room card
connections (future)
and connections for a
central controller)
Model: 2U20EH2VHA
3U24EH2VHA
4U36MS2HDA1
4U36EH2VHA1
(Standard connection
for indoor units A & B)
Step 3 - Installation of the Outdoor Unit (Cont.)
INSTALLATION INSTRUCTIONS
A
B
C
Strain Relief Brackets
Optional
YCZ-A004
Suggested Colors:
L1=White
L2=Black
L3=Red
Ground= Solid Green
or Green-Yellow
Outdoor Unit
Indoor Unit A
Outdoor unit
Power Wiring
3
2
1 )
(N
)
(L
)
(C
2
1 )
(N
)
(L
Indoor unit A
Control Wiring
4 Wire - 14 AWG
Stranded
4
3
To Service Disconnect
1
2
3
=White
=Black
=Red
=Green
A
B
C
D
Sugested Colors
230 Volt Supply. 1 to L1, 2 to L2.
Indoor unit B
Indoor unit C
Indoor unit D
3
2
1 )
(N
)
(L
)
(C
3
2
1 )
(N
)
(L
)
(C
3
2
1 )
(N
)
(L
)
(C
Strain Relief
Brackets
Only on FlexFit 3U & 4U
and Arctic 2U & 3U
Only on FlexFit 4U
and Arctic 2U & 3U
Diagnostic and Control
Power Wiring
To Service Disconnect
208/230 Volt Supply. L1 to L1. L2 to L2.
Power Wiring
To Service Disconnect
208/230 Volt Supply. L1 to L1. L2 to L2.
