Serires KMI
- 18 -
November 4, 2013
Operation
Single-Stage High Intensity Heater
Ensure the gas supply line has been purged.
Open all gas cocks to the heaters and electrically energize the system.
Follow the instructions on the heaters Lighting Instructions Label. Check to ensure that
the thermostat starts and shuts down the system.
Do
NOT
operate the Infrared Heater if the gas pressure below 6.5” W.C. for natural
gas and 12" W.C. for propane.
Control Operating Sequence
Energise the system by 1). Connecting electricity to unit, 2) Set thermostat to call for
heat. Ignitor will spark after 30 seconds once the system energises, and the solenoid
valve will open permitting gas to flow. The flame sensor will try to sense flame by sending
current of 0.8
A or greater to the flame sensor to confirm flame; if the flame sensor does
not sense flame in 15 seconds the solenoid valve de-energises and it will try to light two
more times, if it again fails to sense current it will go in lock out mode (fault mode 1 hour
automatic reset).
Reconnection after shut-down on fault
The device must be disconnected from the electrical supply for a period of at least 5 sec.
Then it must be connected or plugged in again as described above.
Re-ignition
If a malfunction occurs during operation, the ignitor will spark trying to ignite the gas for
the maximum duration of 15 sec. If no current is created within this period, the device
shuts down on fault.
Controlling / Checking Manifold Pressure
Connect the pressure gauge to the manifold pressure test nipple
Switch on the high intensity heater.
Compare the manifold pressure with the specifications on the rating plate and if
necessary correct manifold pressure.
