Heat Exchanger Installation
1.
To install, slide heat exchanger through the bottom of the cabinet while guiding the
heater/control wires into the conduit.
2.
Loosely install left side heat exchanger mounting bolt, temporarily rotate heat
exchanger/cabinet and install right side heat exchanger mounting bolts. You may want to
leave these three bolts loose until conduit has been fully threaded into heater enclosure.
3.
With unit still on its side, thread conduit into heater enclosure, ensuring five full
threads are engaged. It may be necessary to loosen the (2) control enclosure
mounting bolts if you are having difficulty. Tighten locknut inside wiring enclosure
and make sure grommet is in place.
4.
Reconnect heater and thermal cutout control wires. Heater wires labeled T1, T2, and
T3 (T1 & T2 only for single phase) will be connected to the corresponding terminals
on the contactor. Control wiring attached to contactor as shown and wire nut from
which original was removed. See wiring diagram if unclear.
Control wire
attached to far left
terminal
behind L1.
Heater wiring
labeled
T1, T2, & T3.
5.
Attach cabinet bottom and rotate unit to the upright position. Attach cabinet top and
install heater & control enclosure covers. Tighten the (3) heat exchanger mounting
bolts.
Heater Installation
Refer to owner’s manual for mounting and start up instructions.
