Thermon HELLFIRE 400, Installation, Operation & Maintenance Instructions Manual

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G.9 Thermostat Installation
Install the thermostat sensor box as per instructions below:
1.
Remove combustion chamber shipping cover.
2. Detach thermostat box from shipping cover.
3. Secure thermostats to the duct using SST machine
screws - ensure colour coded wires match.
4. Secure thermostat box to the sensor duct as depicted,
with the ground wire under the head of a bolt and
washers.
5. Install thermostat cover to box using hardware
supplied.
G.10 Energy Management System (EMS) Options
1. EMS Module (applies to heaters without EMS
module)
1.1
The module mounts onto the DIN rail to the
right of the controller in the space provided,
and a communication cable connects the two
together.
1.2 As received panel with no EMS module.
1.3 Remove the stops holding the controller and
the circuit breaker.
1.4 Install module onto DIN rail. Plug in 4-pin
connectors and ambient temperature RJ11 jack.
1.5 Connect module to controller with supplied
ribbon cable.
NOTE:
The precipitation detection and ambient temperature
sensor options require the EMS module be installed.