Installation / Operation Instruction Manual

14
Thermostat Adjustment
There are tw o types of thermostats this electric water heater may come
equipped with from the factory. One type, surface mounted
thermostats, directly contacts the water heater tank surface (see Figure
4). The second type, immersed type are immersed within the water
heater tank and uses contactor type relays. Before any w ork is done on
the water heater, disconnect all pow er to the w ater heater by opening
the switch at the main electrical circuit breaker or fuse box. Before
adjusting or setting surface mounted type thermostat(s), disconnect all
power to the water heater. To gain access to the surface mounted
thermostat(s), remove the outer access panel and fiberglass insulation.
Using a screwdriver rotate the thermostat dial on each thermostat
clockwise to increase the w ater temperature. After adjusting the surface
mounted thermostats, replace the fiberglass insulation making sure that
the controls are well covered and that the plastic terminal shield has not
been displaced; replace the access panel. Once the w ater heater has
been filled w ith water, electrical pow er may be restored to the water
heater and the w ater heater is ready for operation. To adjust or set the
water temperature for water heaters using immersed type thermostat(s),
locate the temperature control dial on the right side of the lower control
box. To increase the water temperature, rotate the temperature control
dial clockw ise (see Figure 5). The thermostat(s) or temperature control
dial has been factory preset to approximately 140° F (60° C) or below .
DANGER
Hotter water increases the risk of scald injury. Scalding may occur
within five (5) seconds at a temperature setting of 140° F (60° C). To
protect against hot water injury, install an ASSE approved mixing valve
in the w ater system. This valve w ill reduce point of discharge w ater
temperatures by mixing cold and hot w ater in branch water lines. A
licensed plumbing professional or local plumbing authority should be
consulted.
Note: This w ater heater is equipped with an energy cut out device to
prevent overheating. Should overheating occur, turn off the electrical
supply to the water heater and contact a qualified service technician.