SS-SVX11K-EN
69
panel, refer to the actual unit wiring diagram for
terminal designation, i.e. W, B, R, & Y. A separate
power supply for the actuator(s) must be field
provided.
Figure 44. Unit control panel — 20 to 60 tons
Field Provided Power Supply
(Provide disconnect switch and
overload protection as required.)
Unit Control Panel
1
1
EFI
R
7TB8
12
11
10
9
8
7
6
5
4
3
2
1
EC
W
R
B
R
W
W
R
B
MM-1
TR-1
MP-1
Figure 45. Unit control panel — 80 to 120 tons
Field Provided Power Supply
(Provide disconnect switch and
overload protection as required.)
1
Unit Control Panel
7TB8
12
11
10
9
8
7
6
5
4
3
2
1
R
EC
W
R
B
R
W
MP-1
MP-2
MP-3
R
R
W
W
R
R
W
W
B
B
B
W
R
NM-1
NM-2
NM-3
TR-1
TR-2
TR-3
1
EFI
Table 25. Economizer actuator circuit legend
Device
Designation Device Designation
Parts And Notes
MM Modutral Motor
M.H. M955 (Up to 3 motors may be controlled as shown. Additional motors must be
slaved.)
TR Transformer
M.H. 13081B; cover mounted
EC
Enthalpy Control
M.H. H2051046
IInnssttaallllaattiioonn EElleeccttrriiccaall
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