14
Wiring
WARNING
This water heater uses an external electrical source for
power. It must be electrically grounded in accordance
with all local codes or, in the absence of local codes, the
latest edition of CSA C22.1 Canadian Electrical Code, in
Canada, and/or the latest edition of the National Electrical
Code, ANSI/NFPA 70, in the United States. Failure to
properly ground this water heater can result in property
damage, personal injury, or death.
Before lighting your water heater, check that all of the wires
have been installed correctly (
see Figure 10
). Make sure that
none of the wires are grounded, have split, or are broken.
Verify that all wiring connections are properly secured, as
there is a possibility that they have become loose during
transport. If any of the original wiring needs replacing, use
only 18AWG-type or greater wire that is approved for 221
o
F
(105
o
C).
I
nstallation Instructions for Water Heaters
Approved for Combination Space Heating and
Potable Water Heating (see Figure 11)
A water heater cannot be used for space heating only. When
using a water heater for combination space and potable
water heating, the instructions provided in this manual and
with the air-handling unit must be respected and,
in par-
ticular
, the following:
1) All piping and components that are used in the
system must be of a nonferrous type suitable for potable
water. This also applies to any sealant used.
2) When used as a dual purpose water heater, it must not
be connected to any system that has been previously
used for non-potable water heating. This includes any pip-
ing because, in all probability, existing piping would have
been, in the past, treated with chemicals for cleaning or
sealing the system.
3) If this water heater is to be used for space heating, make
sure that all safety codes are respected. Pay special
attention to safety valve pressure and expansion tanks.
INSTALLATION INSTRUCTIONS
Wiring Diagram
Figure 10
