User Manual

Form 43471010
-12- Dec 2017
7. Slip the plastic vacuum air tube over the 1/4” O.D. aluminum tube end of the draft inducer and the air
switch probe in the control box. The air tube should be shortened to prevent a downward sag which could
allow condensation build-up in the tube.
8. Insert motor lead wires through the strain relief bushing of the control box and connect to L1 and L2 of
terminal block. Refer also to the wiring diagram in Section 13.0).
9. Mount the sliding reflector clamps (#42769010) per Reflector Clamp Installation (Detail “A”) on both tube
support/hanger brackets. Make sure the reflector can slide under the clamp during heater operation.
The reflector clamps MUST be installed per reflector clamp
installation detail which allows the reflector to slide under the
clamp during heater operation.
Do not relocate the tube support/hanger bracket at the control box end of
the heater. This will increase the weight on the emitter tube and can result
in premature tube failure.