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69-0920
5
Y594 (MULTISTAGE THERMOSTAT SUBBASE) PACKAGE
ON
AUTO
FAN
C1
FIELD WIRING CONNECTION
DENOTES CONNECTION POINT BETWEEN SUBBASE AND THERMOSTAT
C0
G
Y
O
R
C0 STAGE
L
OFF
H1
C
E
SUPL. HEAT
H2
SUPL. HEAT
X
W2
HEAT
SUPL.
HEAT
COOL
COOL
HEAT
HEAT
HEAT
P
H1
FALL
C1
RISE
CO
H2
FALL
CO
RISE
L1
(HOT)
L2
1
THERMOSTAT SUBBASE
SYSTEM COMPONENTS
COMPRESSOR CONTACTOR
FAN RELAY
HEAT RELAY 1
OUTDOOR
THERMOSTAT
HEAT RELAY
CONTACT 1
HEAT RELAY 2
HEAT RELAY
CONTACT 2 HEAT RELAY 3
"X" RELAY
"P" RELAY
COOL
CHANGEOVER VALVE
SYSTEM
SWITCH
SUPL. HT.
HEAT
OFF
FAN
SWITCH
AUTO
ON
H1
ANTICIPATOR
H2
ANTICIPATOR
C1 ANTICIPATOR
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
1
3
4
5
6
8
9
10
11
O
P
X
E
C
L
G
Y
R
2
W2
SUPL. HT.
LED (RED)
M4564
COOL
12
2
10
8
12
11
9
2
3
6
5
4
Fig. 5. Y594J1001 Thermostat/Subbase switching and internal connections.