Reznor VS15LHE8, Installation & Operating Manual

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Figure 53. Honeywell VK4105 Series Figure 54. SIT Sigma 840 Series
Gas inlet test point.
Injector pressure test point
Adjustment screw under-cap
to set injector pressure
Gas inlet test point.
Injector pressure test point
Adjustment screw under-cap to set
injector pressure
No
Yes
Check installation has
been carried out to these
instructions.
Ensure gas and electricity supplies
are isolated.
Disconnect gas hose from burner
Reconnect gas hose. Open
isolating valve. Check
soundness.
Open control housing and
check that all components,
are securely fastened.
Close control housing
Check thermostat is set to
maximum and is calling for heat.
Switch on electrical supply. The red
neon should now be illuminated.
If restarting heater a delay of 15s
should be allowed.
Open control housing and check that all
components are securely fastened. Ensure
vacuum at burner is greater than 80 Pa
The heater should now run through its
start up sequence and ignite.
A successful ignition is
indicated by the amber light
illuminating and remaining
illuminated.
Check gas pressure. Check operation on flame failure.
Leave the instructions with a
responsible person.
Check operation of air
pressure switch
Close control housing
Replace burner on tube and secure.
Remove burner from tube and
inspect burner head.
(See servicing instructions)
Has the burner lit?
3.4 Gas valve adjustment
3.5 Commissioning chart for VS series unitary heaters
45