State SSE-120 - Manual (Page 15)

15
operatIon
General
Refer to the Features and Components section of this manual for the
location of components mentioned in the instructions that follow.
neVer operate the heating elements without being certain the water
heater is filled with water, and a temperature and pressure relief valve
is installed in the relief valve opening on top of the heater.
Some models will be equipped with an optional LWCO (low water
cut off). The water probe is installed in the storage tank – see the
Features and Components illustrations at the beginning of this
manual for location. The control system will declare a Fault condition
and lock out (de-energize contactor coils and heating elements) if
the water level is below this point.
The pilot switch (power on/off toggle switch) on the cabinet front
permits the heater to be turned on and off without having to operate
the electrical disconnect switch.
Optional manual override switches on the cabinet front allow elements
to be manually de-energized if full capacity is not needed.
fIllInG the water heater
To fill the water heater with water:
1. Turn off the electrical disconnect switch.
2. Turn off pilot toggle switch.
3. Close the heater drain valve.
4. Open a nearby hot water faucet to allow the air in the system to escape.
5. Fully open the cold water inlet valve, filling the heater and piping.
6. Close the hot water faucet when water starts to flow from the
faucet. Leave the cold water inlet valve fully open. The heater is
now ready for start up and temperature regulation.
7. Close the cabinet door and perform start up checks listed below
before turning on the electricity.
InItIal start up
The following checks should be made by the installer when the water
heater is placed into operation for the first time:
1. Check all factory and field made water and electrical
connections for tightness. Also check connections on top of the
heater. Repair water leaks and tighten electrical connections
as necessary.
2. Turn on the electrical disconnect switch and pilot toggle switch.
The pilot toggle switch is located on cabinet.
3. Observe the operation of the electrical components during the
first heating cycle. use care as the electrical circuits are
energized.
Temperature control and contactor operation should be checked
by allowing heater to come up to temperature and shut off
automatically. use care as the electrIcal cIrcuIts are
enerGIZed.
draInInG the water heater
The water heater must be drained if it is to be shut down and/
or exposed to freezing temperatures. Maintenance and service
procedures may also require draining the heater.
1. Turn off the electrical disconnect switch.
2. Turn off pilot toggle switch.
3. Open a nearby hot water faucet until the water is no longer hot.
4. Close the cold water inlet valve to heater.
5. Open drain valve.
6. If the heater is being drained for an extended shutdown, it is
suggested the drain valve be left open during this period.
Follow FILLING instructions when restoring hot water service, see
the list above.