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17
Centrifugal Fan Model Installation
11.
Mount Heater Guard onto fan as shown
utilizing 5/16”washers and bolts from
Step 1. After Guard is installed insert
and tighten remaining 5/16” washer and
bolts in their original holes from Step 1.
12.
Connect rubber LP gas hose from Burner Heater Assembly to plumbing tree found on control box. Also
connect flame rod wire and ground wire to Flame/Sense rod on burner assembly.
13.
Check Gas Line for leaks with soapy water.
14.
For EQM version of heaters (Heater Models S224441 and S224443), if the optional Headspace
Temperature/Relative Humidity Sensor was provided, install at this time. Skip step if heater is a
Thermostat version (Heater Models S224442 and S224444).
a.
Sensor will be mounted to the bin roof above where grain is present. To install, this requires
drilling a 7/8” hole for the probe and using 3 small self-drilling sheet metal screws (customer
supplied) to mount to roof. Seal hole in roof with Silicone Caulk.
b.
Sensor will need to be wired into heater control box using 3 conductor 18awg shielded wire and
any necessary conduit and fitting (customer supplied).
Note: ½” knock out plugged hole in
bottom of control box for Headspace Sensor.
See EQM Control Model Electrical Schematic
(pg 51) on how to connect Sensor to EQM Board in control box.