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1
1.4
Single Boiler Control
To equip a single GB142 boiler with outdoor reset control:
Required items:
– ON/OFF thermostat for every heating zone with individual zone pump or zone valve
– Pump relay
– Wiring
RC 10/20
Orange
RC
1
2
Fig. 7
Wiring detail
If there are multiple zones, wire all thermostats in parallel for calls for heat from any thermostat
to produce a heat demand.
Do not install RC10 module when
using this configuration.
30
AM10 - Reservado el derecho de introducir modificaciones como consecuencia de mejoras técnicas
GB142 wire terminal strip
Outdoor
T T
DHW
sensor
Connection
Sensor
Blue
Lt Green
Lt Gray
FA
WA
FW
1
2
1
2
1
2
1
Terminals FA and WA
not used in this
application
Zone
valve
Low Voltage
Field wiring
120 Vac
Field wiring
Neutral
Line
Dedicated
120 Vac
15 Amp Circuit
Safety
Limit
Red
EV
2
Factory
Installed
Jumper
DHW Tank
Sensor
T
T
Pump Relay
N
H
C1
C2
X
X
AM10 Module
On / Off
1
2
1
2
1
2
Outdoor
sensor
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