Freeze Protection Thermostat - A.O. Smith 240 T-H3J Service Manual

10-20. Freeze protection thermostat

Part#
Function
Failure events
Effects on the water heater
if freeze protection
thermostat fails
Error codes when
the freeze protection
thermostat fails
Diagnostic
Color / Number of wires
Activation and deactivation temperature of the water heater's freeze protection system
240 (T-H3J), 340 (T-H3S) and 540 (T-H3) models Service Manial
Temperature detecting device which prevents the pipes within the water
temperature).
components inside the water heater.
been broken.
ON mode: 108 VAC - 132 VAC
Black - Black
OFF mode: less than 1 VAC
7 / 8 " (2 2 .2 m m)
45
Page
CONFIDENTIAL
Unit Part#
N/A
Checkpoint
1 / 4 " (5 .7 m m )
Ver. 1.00
#713
B1