Installation / Operation Instruction Manual

23
SECTION VI
ELECTRICAL CONNECTIONS
Install electric wiring in accordance with National Electric Code
or the Canadian Electrical Code and local regulations. See the
boiler’s installation manual for wiring diagrams.
This indirect-fired water heater is supplied with an aquastat
temperature control. This aquastat must be properly installed
in the aquastat well location of the water heater. Refer to
Figure 6. Remove the cover and loosen the clamping screws.
Insert the aquastat capillary bulb to the well bottom as shown
and screw the aquastat clamp securely in the well groove. The
aquastat acts as a thermostat for zone control and should be
wired accordingly. Refer to the boiler or zone control
manufacturer’s instructions if any additional wiring is required.
The control is factory set at 120°F (49°C) and care should be
made to not rotate this dial while wiring the control. Once
electrical connections are complete, secure the aquastat cover
back in place.
DANGER
Positively assure all electrical connections are unpowered
before attempting installation or service of electrical components
or connections of the water heater or building. Lock out all
electrical boxes with padlock once power is turned off.
WARNING
When installed, the water heater must be electrically grounded
in accordance with local codes or, in the absence of local codes,
with the National Electrical Code, ANSI/NFPA 70, and /or the
CSA C22.1 Electric Code (latest editions).
Failure to properly wire electrical connections to the water
heater may result in serious physical harm.
Electrical power may be from more than one source. Make sure
all power is off before attempting any electrical work.