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Manual 2100-467K
Page 15 of 24
E
Y
1120-445
TH5220D1151
Low Voltage Wiring
L
2
C
O
1
Unit Control Panel
Block
Y
C
G R
W1 W2
E
F
Y1C
G R
W1O
Y2 W2
D
A
E
L
AUX
R
G
E
B
RC
3
L
B
Thermostat Subbase
Terminal
HEAT ON UNITS WITH 15 OR MORE KW
YO
Unit 24V
REMOVE JUMPER FOR 2 STAGE ELECTRIC
MIS-2149 C
FIGURE 6
LOW VOLTAGE WIRING