Euro-C 4000 RJL-GBEN
17/26
The inner surfaces of the heat exchanger
can be reached for cleaning with the burner
and combustion air fan (venter) assemblies
removed, (see figures 10/11 and section 7).
Clean with a flue brush or a heavy wire to
which wire wool has been attached. Brush
inside each heat exchanger tube until all
foreign material has been removed. The use
of a flashlight is necessary to carry out this
operation.
3. Remove any dirt and/or grease that may have
accumulated on the venter fan motor and its
housing.
NOTE:
Venter fan motors are
lubricated for life and do not require greasing.
4. The gas multi-functional control valve requires
no field maintenance except cleaning of it's
exterior and checking the condition of the
wire connections. Instructions for testing
pressure are given in section 5.5.
5. Check the flue/combustion air system for
soundness. Reseal/replace any parts that are
not sound.
6. Check all wiring connections. Check wiring for
any signs of damage. Replace any suspect
wiring with an equivalent specification.
7. Check operation of thermal fan control and
control relay.
8. When service is complete carry out full
commissioning procedure as per section 5 of
this document.
7.0 Removal and replacement of
parts
EURO-C 4000 RJL air heaters must only be fitted
with Reznor authorized replacement parts. These
heaters must use certificated spare parts to
comply with legislation.
7.1 Main burner removal
Instructions for burner removal (see figure 10):
1. Turn OFF the gas supply to the air heater.
2. Switch OFF the electricity supply to the air
heater.
3. Open the access door.
4. Disconnect the union in the gas supply
outside of the appliance.
5. Remove gas supply pipe from multi-functional
gas control valve.
6. On the burner box end of the flexible pipe,
loosen the hose clamp. Slide the hose from
the socket.
7. Disconnect the silicon tube from the static
tapping point on the burner box cover.
8. Remove the small manifold cover plate.
Remove the burner box cover. The burner
rack assembly is now visible.
9. At the bottom of the burner rack assembly,
remove the nut that secures the burner rack
to the bolt welded to the burner box bottom.
At the top of the burner rack assembly,
remove the bolt that attaches the burner rack
assembly to the bracket. Lift the burner
rack/manifold assembly upward (to clear the
locating weld pins) and pull the assembly out
of the air heater.
Figure 10 :
Removing the burner rack/manifold assembly
(for
clarity, the heater cabinet & other parts are not
illustrated; do not remove the burner box
assembly from the heater)
Instructions for re-assembly:
1. Reverse the procedure for removal making
sure that all parts are installed correctly.
Check that all components are secure.
2. When lighting, always follow the lighting
instructions on the air heater.
Remember!
After any service work has been
carried out, the air heater must be fully
commissioned. See section 5 of this document.
