38 Installing the System Piping
With 24VAC Connections
R
W
C
R
W
C
Boiler Pump FUSE
(250VAC_10A)
ZONE3 Pump FUSE
(250VAC_10A)
ZONE2 Pump FUSE
(250VAC_10A)
ZONE1 Pump FUSE
(250VAC_10A)
CNP1
CNP2
CNA1
IN
N
L
CON2
CON1
R
W
C
R
W
C
CNB1
CNG1
CNF1
CNK1
CNI1
(250V 3.15A)
ZONE3
ZONE2
ZONE1
DHW
CNT1
CNT2
CNT3
CNT4
SUPPLY
RETURN
OUTDOOR
DHW
TANK
CNJ1
CND1
CNV3
CNV2
CNV1
CNC3
ZONE3
LWCO
ZONE2
ZONE1
CNC4
CNC5
CNC6
CNC1
CNC2
R
W
C
R
W
C
R
W
C
R
W
C
Zone Pump 3
(max. 2.5 A)
Thermostat 3 Thermostat 2
Thermostat 1
Pump Ground
DHW Aquastat
(priority)
Live
Live
Live
Live
Neutral
Neutral
Neutral
Neutral
Zone Pump 2
(max. 2.5 A)
DHW Pump
(max. 2.5 A)
Boiler Pump
(max. 2.5 A)
24 V
AC
N
24 V
AC
N
Ther
mosta
t Input
Ther
mosta
t Input
24 V
AC
L
24 V
AC
L
24 V
AC
N
Ther
mosta
t Input
24 V
AC
L
OUT
OUT
OUT
OUT
IN
IN
IN
IN
Note
If the DHW Tank is connected to the priority terminal, the T/S Zone 1 input is not available.
