Clarke MGH1, Инструкция по эксплуатации и обслуживанию

Страница: 6 / 16

6
FEATURES OF THE MGH1 HEATER
The MGH1 gas heater comprises three groups of components:
GAS SUPPLY COMPONENTS
The gas supply to the machine is by means of a high pressure hose,
connected to a gas cylinder, via a pressure regulator.
When the gas valve is opened, gas will flow to the control valve and finally
the burner. The heater can be operated at one of 3 settings using 1,2 or all 3
burner plates.
This heater is designed only to be used with a 15 kg LPG/Butane gas bottle.
Gas bottles are not supplied, but are readily available from builders mer-
chants or gas suppliers etc.
The minimum surrounding air temperature rating for the heater is min 5 o C -
m40
o
C.
IGNITION COMPONENTS
An igniter is positioned beside the Pilot Light. When the ignition button is
pressed, a spark is generated which ignites the gas. Heat from the flame is
sensed by a thermocouple which is connected to the Flame Failure Valve. As
the thermocouple heats up, a low voltage is fed to the Safety Cut-Off Valve,
causing the valve to open, so that after a short period, the Control Valve (see
‘Lighting the Heater’ on page 9) may be released, and the pilot flame is
established.
SAFETY COMPONENTS
The heater incorporates the following safety devices that will cause it to shut
down in unsafe conditions.
The Flame Failure Valve will shut off the gas if the flame extinguishes for any
reason. When the thermocouple quickly cools down, the gas supply is shut off
so that the heater will shut down automatically.
The Oxygen Depletion Sensor will shut off the gas if the CO
2
concentration in
the air supply to the heater exceeds a pre-set value. The room should there-
fore be well ventilated at all times.
The Anti-Tilt Switch will turn off the heater if it is tipped over. If this activates, set
the heater upright, check for obvious damage and wait 5-10 minutes before
attempting to re-light the heater. This device may also operate if the heater Is
knocked against or bumped.