CAL
-SERIES
4
Check line and manifold pressure with a manometer to confirm unit is set according to the specification on
the rating plate. Perform check with all gas-fired appliances operating. (See pages 48, 58 & 59 for further
details).
Provide adequate accessibility clearances for servicing.
Leave copy of this manual with owner (or a copy) for future reference.
HEATER OPERATION NOTE:
Heater will have a higher heat output at the burner end as compared to the
exhaust end.
SPACE HEATING:
As a general rule, it is suggested to locate the burner end toward the highest heat-loss area
(doors) of the space being heated. If you have any concerns or questions concerning orientation or layout of
the heater in your application, contact factory for assistance.
SPOT HEATING:
On heaters with a straight-line configuration as well as units that have the maximum length
of radiant tube selected for the input capacity of a given burner, there will be a noticeable and more
pronounced perception of greater heat output from the burner end of the heater as compared to the exhaust
end. As a general rule, it is suggested for spot heating applications, to use a u-tube configuration to provide
a more even source of heat. If you have any concerns or questions concerning orientation or layout of the
heater in your application. Contact factory for assistance.
NOTE:
Condensation from the exhaust may occur from this heater when it starts the heating cycle. The
condensation will stop once the heater warms up. Make sure venting is sealed according to section titled
"VENTING".
