PLANAR
Edition 1
March 2016
Page. 25 of 29
Before January 2015.
After January 2015.
Fig.15–Combustion Chamber of PLANAR-2D heaters.
5.9 Functions, Removal and Replacement of Heat Exchanger.
The heat exchanger is designed to transfer heat from hot gases generated by the
combustion of air-fuel mixture in the CC to radiators, which in their turn, heat up the air
stream passing along the edges of radiators.
During operation of the heat exchanger such faults may occur as: loss of heat
conduction, increase in temperature of exhaust gas (more than 500°C), burn-out of the heat
exchanger walls. Failures occur due to deposits of combustion products on the inner walls
and fins of the heat exchanger and also due to the use of a poor fuel.
Inspect the inside of the heat exchanger, clean it from soot and carbon black, if
necessary. When replacing the heat exchanger, assembly is performed in reverse order. If,
during the assembly/disassembly any gasket is damaged, it should be replaced.
5.10 Functions, Removal and Replacement of Fuel Pump.
The fuel pump is used for metering fuel into the combustion chamber. Heaters are
equipped with fuel pumps Thomas Magnete. This pump can not be repaired, it should be
replaced with a new one.
Possible problems of the heater's fuel pump:
a)
during startup, fuel is not supplied to the fuel tube of the heater, and the
characteristic knocking sound is not heard in the fuel pump;
b)
the fuel pump operates, but fuel is not supplied to the fuel tube of the heater;
c)
interruption of combustion when the heater reaches its "max" mode, i.e. the
fuel pump does not provide the required amount of fuel.
