Section 8, Operating the WaterHeater
International Thermal Research
8-7
Thermostat LED (Green)
•
The Thermostat LED turns ON when the thermostat in the
space heating zone is calling for heat.
Domestic Water Pump, Cabin Fan Pump, Cabin Fan (Green)
•
The Domestic Water Pump, Cabin Fan Pump and Cabin Fan
LED’s turn ON when the devices are functioning. They will be
off if a fuse has been blown.
8.8 Maintenance
Customer Monthly Maintenance: Check the following and
correct as required:
•
Water and coolant (Space Heating Module) hoses and fittings
for leaks and integrity.
•
Check coolant level in the overflow bottle (for Space Heating
Module); (3/4 full when hot). Fill only when the module is
COLD.
•
Exhaust fittings, connections, tubes for leaks, and integrity.
•
Exhaust and air-intake checked for no obstructions.
•
Fuel lines, fittings for leaks and integrity.
•
External fuel filter for clogging.
Annual Factory Maintenance: Perform the following:
•
Factory Service Tune-up (AC and DC power is
disconnected):
•
Prior to operation for the season, a factory service
tune-up of the modular system should be performed by
trained service personnel. Only personnel familiar with
the equipment modules should perform the service tune-up.
It is recommended that the dealer be contacted for this
service or if not available, contact ITR for further instructions.
•
As a general guide, the regular maintenance items such as
the igniter, fuel nozzle, fuel filters (internal and external) and
air filter (internal) should be replaced as opposed to inspected
and cleaned. Their performance may be deteriorating and/or
their remaining service life ending without any apparent
visual signs or operating symptoms.
