Installation / Operation Instruction Manual

21
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.
1. Remove the cover and loosen the clamping screws.
2. 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.
3. 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.
4. 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.