Low Voltage Terminals
L G N
L G N
L G N
L G N
L G N
L G N
L G N
FLAME
PUMP 4
PUMP 3
DHW PUMP
CH PUMP
POWER SUPPLY
ALARM
Line Voltage Terminals
CH2
Thermostat
6 5
System
Sensor
4 3
Modulation
Signal
- +
2 1
CH2
Thermosta
t
CH1
Thermostat
4 3
Outdoor
Sensor
2 1
DHW
Sensor or
Aquastat
2 1
Modbus
+ G -
3 2 1
X7
X4
X6
X5
External Limit
Terminals
Manual
Auto
Mix Sensor
Terminals
Fig. 12 - MONARCH Tank Temperature Sensor Connected to Gallant Boiler Low Voltage Terminal
14
A1009091 - 661A0600_EN • A
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CHAPTER 3 - INSTALLATION - WIRING
3.1. Temperature Sensor and Drywell
Gallant and Exalt boilers are equipped with a sensor
that can be used with the tank.
A drywell is provided with the tank, to be installed in
the designated location (refer to
Fig. 15 on page 22
for the exact location).
The drywell shall be installed using appropriate sealing
material and tightened with a torque of 51 Lb.ft (70 Nm).
3.2. Thermostat (Aquastat)
The tank can be equipped with a thermostat of the fol-
lowing type :
Resideo L4080B1352.
The thermostat should be set at 120°F or lower.
NOTICE
