Install Instructions

© 2015 532_D - 02/15
7 of 20
A Watts Water Technologies Company
Switching Relay
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Thermostat Wiring
Relay 003
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tN2
CR
tN2
tN4
Rh W S1 S2Com
No Power
RW
24 V
RW
HNXX HNHN NH
Com
Switching Relay
Zone 1 Zone 2 Zone 3
Class 2
Transformer
RW
Zone 1 Zone 2 Zone 3
NL
TT
Optional
Sensor 1
Optional
Sensor 2
Pump
Boiler
tN2
CR
tN2
tN4
Rh W S1 S2Com
No Power
T T
C
N
L
R
2
1
8
7
3
4
5
6
Optional
Sensor 1
Optional
Sensor 2
Pump
Relay 003
Boiler
Install field jumper
wire R to Rh
Available auxiliary sensors:
Outdoor Sensor 070
Slab Sensor 072 20' (6 m) wire
Slab Sensor 073 40' (12 m) wire
Indoor Sensor 076
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•
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Indoor Sensor 077 Cover Plate
Slab Sensor 079 10' (3 m) wire
Indoor Sensor 084 Flush Mount
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