Innovation Water Heaters Installation, Operation & Maintenance Manual
CHAPTER 4 – INITIAL START-UP
OMM-0078_0L
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
Page
65
of
206
GF-128
Phone: 800-526-0288
PRI: 11/25/2014
4.7 OVER-TEMPERATURE LIMIT SWITCHES
The unit contains both automatic and manual reset over-temperature limit switches, shown in
Figure 4-6. They can be accessed by opening the front panel door of the unit.
The manual reset switch is not adjustable and is permanently fixed at 190°F. This switch will shut
down and lock out the heater if the water temperature exceeds 190°F. Following an over-
temperature condition, it must be manually reset by pressing the RESET button before the heater
can be restarted. The automatic reset over-temperature switch is adjustable and allows the unit to
restart, once the temperature drops below its temperature setting. Set the automatic over-
temperature switch to the desired setting.
Figure 4-6. Over-Temperature Limit Switch Location
MANUAL RESET (NON-
ADJUSTABLE)
OVER-
TEMPERATURE LIMIT
SWITCH
AUTOMATIC RESET
(ADJUSTABLE)
OVER-
TEMPERATURE LIMIT
SWITCH
