Johnson Controls GLAS Technical Bulletin page 14

Figure 5:
Furnace
re d
w e
P o ic e
c e e v
rn a n
X D R u
F u
A U
R
C
Outdoor AC Unit
Figure 6:
Furnace
re d
w e
P o
ic e
c e e v
rn a X D R u n
F u A U
R
C
Heat Pump
Figure 7: One Stage Heat Pump with One Stage Auxiliary Heat
Furnace
re d
w e
P o ic e
c e e v
rn a n
X D R u
F u
A U
R
C
Heat Pump
GLAS Smart Thermostat Technical Bulletin
Traditional AC and Heat
HVAC System Control Board
C
C
C AUX
RC G
W1 Y1
W2 Y2
RH O
Heat Pump
C AUX
RC G
W1 Y1
W2 Y2
RH O
C AUX
RC G
W1 Y1
W2 Y2
RH O
14
Cool
Heat
Fan Stage 1
RC Stage 1
G Y1
RC W1
HVAC System Control Board
Compressor Reversing
C RC Fan Stage 1 Valve
C RC G Y1 O
HVAC System Control Board
Compressor
Aux Heat
Command Reversing
C RC Stage 1 Fan
Stage 1 Valve
C RC W1 G Y1 O