INSTALLATION : GARN® WHS/ETS DIGITAL CONTROLLER
INSTALLING THE GARN® WHS/ETS DIGITAL CONTROLLER
RUN ALL OF THE SENSOR WIRES ASSOCIATED WITH THE DIGITAL CONTROLLER OUTSIDE OF ANY INSULATION THAT IS CONTACT WITH THE UNIT.
DO NOT RUN ANY SENSOR WIRES WITHIN 2 INCHES OF ANY POWER SOURCE OR CURRENT CARRYING WIRES. Do not zip-tie or attach sensor wires to any power sources
or other high current wires.
Install the stem on the manway cover as detailed in the LOW WATER CUT-OFF AND TANK TEMPERATURE SENSOR STEM section of this manual.
1) FLUE GAS TEMPERATURE SENSOR:
The FGT sensor comes with the compression nut already in place. The threaded portion of the fitting is screwed into the fitting on the upper clean-out plate next to the motor.
Slide the sensor into the fitting in the cleanout plate and snug. If during firing flue gases are observed seeping out of the fitting, snug until fully sealed.
2) OUTDOOR TEMPERATURE SENSOR (OTS – outdoor temperature sensor and 25’ 3 wire lead)
The outdoor sensor does not provide a control function; rather it is for information purposes only. Therefore, the outdoor sensor is OPTIONAL and not supplied as a standard item. It may be purchased at https://www.garn.com/shop/, part # P0056. The sensor functions best mounted above head height, on the north side of the building, protected from direct sunlight, and away from heat sources. Additional specific instructions are provided with the outdoor sensor. The actual sensor may not appear as shown in the photo below due to supplier variations.
GARN WHS 1000 and WHS 2000 Manual © HY-C Company LLC - September 2024
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