Heat Pump Control (Right Terminals)
Conventional Control (Right Terminals)
ECONOMIZER ACTUATOR (output)
VARIABLE FREQUENCY DRIVE (output)
24VAC ENABLE OUTPUT
COMMON
ACTUATOR FEEDBACK (input)
0-10VDC INPUT
A1
A2
E
C
S1
S2
0-10 Out
0-10 Out
24V Out
NEUTRAL
0-10 In
0-10 In
T1
T2
T3
SAT
RAT
OAT
SUPPLY TEMPERATURE
RETURN TEMPERATURE
OUTSIDE AIR TEMPERATURE
CAUTION: Do
NOT
connect 24V or any
other electrical voltage to these terminals.
!
Economizer and VFD Control (Left-Top Terminal Block)
10K Type II Temperature Probe Inputs (Left-Bottom Terminal Block)
D
C
R
DATA
COMMON
24VAC PWR
24VAC
Rc
Y
W
G
COOL STAGE 1
HEAT STAGE 1
FAN or 24V VFD ENABLE
W2
Y2
HEAT STAGE 2
COOL STAGE 2
D
C
R
DATA
COMMON
24VAC PWR
24VAC
Rc
Y
W
G
COMPRESSOR STAGE 1
REVERSING VALVE (O/B)
FAN or 24V VFD ENABLE
W2
Y2
AUXILIARY HEAT
COMPRESSOR STAGE 2
7
