User Instructions - Nordair Niche INDIRECT FIRED AIR HEATER (EBM) Installation And Operating Manual

11. User Instructions

Display this near your heater
Important
For safe and satisfactory operation, these
instructions should be read and fully understood.
General
For continued safe and efficient operation, this
heater should be serviced regularly by a
competent service engineer. A full after sales
service is available from Nordair Niche. Read the
warranty and ensure
operated within the terms of the warranty.
Maintain free access to the heater for servicing
and do not restrict the air supply to the heater.
For your safety
• Ensure that the heater is properly earthed.
• If a gas leak is suspected, turn off the gas
supply and contact
immediately.
• DO NOT USE A NAKED FLAME to inspect
gas leaks.
To turn the heater on
1. Turn 'ON' the gas supply and the electrical
supply to the heater.
2. The time and temperature control of the heater
is under the dictates of a time temperature
controller and will start automatically.
Note
• On initial start-up, several attempts may be
required to purge
multifunctional control valve.
• If the heater will not 'start' on initial
the ignition controller may be
position. Depress the reset button.
• After measuring the gas pressure, ensure the
cap is refitted.
Normal operating sequence
1. On time signal start, main supply fan starts.
2. Room sensor calling for heat, flue venter
commences a purge period followed by ignition
of the main flame.
3. Below room set point, the burner will fire at
maximum heat input, until room set point is
achieved. Depending on the type of control
fitted i.e. modulating, high/low or on/off, the
heater input will be reduced accordingly.
that the heater is
the gas supplier
the air from the
start-up,
in lockout
4. Room temperature exceeding room set point
will shut down the burner. Main supply fan will
continue to run.
5. On time schedule shutdown the burner and
main fan is shut down. Outside of the time
schedule frost protection will start the heater.
Note
The fan will continue to operate until the heat
exchanger has cooled down.
To shut down the heater for a short period
Override the time/temperature controller to 'off'.
To reinstate the heater operation, override the
controller to 'ON'.
To shut down the heater for an extended
period - Override the time/temperature controller
to 'OFF'. Isolate the gas and electrical supplies.
Operation note
If a momentary interruption to the gas occurs, the
burner will automatically lockout. Burner lockout
must be manually reset.
If the heater continues to lockout after 3 or 4
consecutive attempts at ignition, contact Nordair
Service Department or your own service
company.
In the event of the heater going into an overheat
condition, wait 30 seconds before resetting. If the
heater continues to go to overheat after 3 or 4
consecutive attempts, contact Nordair Niche
Service Department or your own service
company.
Maintenance and service
To ensure safe and efficient operation, this
heater should be serviced at least annually. It is
strongly recommended that the installing heater
engineer or Nordair Niche Service Division be
contacted to provide the necessary service.
Retain on file a copy of the service instructions
for this heater.
To clean the appliance cabinet, wipe the
surfaces with a damp cloth, containing a mild
detergent.
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