Installation Manual

TWO-STAGE FURNACE AND A/C
HVAC TERMINAL DEFINITIONS
Y1 – First stage cooling
Y2 – Second stage cooling
W1 – First stage heating
W2 – Second stage heating
G – Fan
RADIANT FLOOR FIRST-STAGE HEAT,
FURNACE SECOND-STAGE HEAT AND A/C
HVAC TERMINAL DEFINITIONS
Y1 – First stage cooling
W1 – First stage radiant floor heat
W2 – Second stage furnace heat
G – Fan
BOILER AND A/C
HVAC TERMINAL DEFINITIONS
Y1 – First stage cooling
W1 – First stage boiler heat
G – Fan
TWO-STAGE HEAT PUMP
HVAC TERMINAL DEFINITIONS
Y1 – First stage compressor
Y2 – Second stage compressor
W1 – First stage auxiliary heat
W2 – Second stage auxiliary heat
G – Fan
O – Reversing valve (cooling)
Y2
R
W1
G
Y1
FURNACE AND A/C
W2
JMP
HVAC
RH
RC
W
W2
Y
Y2
G
O
B
L
C
Y2
R
W1
Y1
W2
O
L
C
G
TWO STAGE
HEAT PUMP
JMP
HVAC
RH
RC
W
W2
Y
Y2
G
O
B
L
C
Y1
G
R
BOILER AND A/C
R
C
W
BOILER
INDOOR AIR
HANDLER
AND A/C
NOTE:
REMOVE THE JUMPER NEXT TO THE RH AND
RC
TERMINALS, LABELED JMP, TO ISOLATE THE
BOILER AND INDOOR AIR HANDLER TRANSFORMERS.
JMP
HVAC
RH
RC
W
W2
Y
Y2
G
O
B
L
C
FURNACE
AND A/C
24V SPST
NO RELAY
RADIANT
FLOOR
HEAT
G
C
R
Y1
W1
R
C
W1
JMP
HVAC
RH
RC
W
W2
Y
Y2
G
O
B
L
C
90-2382
90-2383
90-2384
90-2385
FIGURE 16 – TWO-STAGE FURNACE AND A/C
FIGURE 17 – TWO-STAGE HEAT PUMP
FIGURE 18 – BOILER AND A/C
FIGURE 19 – RADIANT FLOOR HEATING
12 English