connecting fan to serpentine heater

[jswampler]

Hey guys,

So I just bought and plumbed a Beacon Morris serpentine hot water heater model 118 to my system. It is supplied by a circulator pump. I have the circ pump attached to a Taco 4-zone relay. A thermostat also attached to the Taco relay calls the circ pump. I am not sure however where to wire the blower fan on the back of the unit. Can anyone help me with this please???

[johnjh2o]

The blower on the heater should be wired through a temperature sensing switch that is part of the heater. The switch should be attached on the line feeding the heater.

BMKR02024-L02 - Beacon Morris BMKR02024-L02 - Low Temp Aquastat for K120

John