Mounting The Burner Door Correctly Back Onto The Heat Exchanger - Lochinvar EcoForce EF80 Installation, Commissioning, User And Maintenance Instructions

25.5.13 Gas/air ratio
With every service check and/or maintenance of the water heater always check the gas/air ratio by measuring the CO
at the maximum and minimum load of the water heater. If necessary adjust these values, see for information chapter Error! Reference source n
ot found. "Adjusting and setting the burner".
25.5.14 Pump
Check the electrical parts and the motor of the pump for defects. The pump must generate a sufficient water flow over the (heat exchanger of
the) water heater. When the pump produces noise, is operational for more than five years or has signs of water leakage it is recommended to
replace the pump as a precaution.
When defects and abnormalities are found by the service engineer during service and maintenance and these are not
repairable, this information should be reported to the owner/end-user of the installation. Also these defects should be
reported in the service report / log file of the boiler.
During service and maintenance the gas, supply air, flue gas and condensate connections are disconnected, checked
and replaced. Make sure that all these components are mounted correctly before commissioning the boiler again.
M
OUNTING THE BURNER DOOR CORRECTLY BACK ONTO THE HEAT
:
EXCHANGER
Before mounting the burner door, make sure that
its gaskets and insulation are in excellent shape.
If any signs of damage or ageing are present, these
parts must be replaced.
The burner door must be mounted back on the heat exchanger as
follows:
- Place the burner door with its holes over the six threaded studs.
Careful! When handling too rough or misplacing the holes over the
threaded studs, the burner door insulation and/or gaskets can be
damaged.
Assure yourself that the door is well positioned with respect to the
threaded studs, before pushing it onto the exchanger.
- Now keep the burner door firmly in place by pushing the gas/air nose
with one hand at the middle at point A.
- Then turn-tighten the flange nuts with the other hand as far as possible
onto the threaded studs.
Now the burner door is in place and the nuts can be tightened with a
torque key.
Tighten the nuts in the order given in the picture below.
-
The specified torque value for tightening the burner door
-
flange nuts is 8 Nm.
percentage (flue gas)
2
tighten in given order
torque value = 8 Nm
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