Before lighting your water heater, check that all of
the wires have been installed correctly (see Figure 6).
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 origi-
nal wiring needs replacing, use only 18AWG-type,
or greater wire that is approved for 221˚F (105˚C).
Installation Instructions for Water Heaters
Approved for Combination Space Heating and
Potable Water Heating (see Figure 7)
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 particular, 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 piping because, in all probability, exist-
ing 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.
4) Do not use toxic chemicals to clean the potable
water heating system.
5) Where water temperature in excess of 140
o
F
(60
o
C) is required for a space heating application,
a mixing valve must be installed in the potable
side of the system. This will temper the water,
and reduce the risk of scalding.
6) If the incoming water line to the heater is
equipped with a check valve, water meter, or
pressure-reducing valve, an expansion tank
must be installed in the system. This will prevent
weeping from the water heater relief valve and
premature failure of the heater due to expansion
of the water during the heating cycle.
7) Before acquisition of a water heater for space
heating application, it is necessary to have
the area of intended use sized by a qualified
technician. This will ensure that an adequate
water heating capacity will be available for both
heating and potable water supply, and that the
application will meet all local codes and public
utility requirements.
Note:
It is good practice to oversize the water heater,
to ensure that all of the potential hot water
requirements are available.
11
INSTALLATION INSTRUCTIONS
Figure 7
Hot water
to house
Check Valve
Circulation Pump
Cold water supply
to water heater
Air handler
Water
heater
2"
18'' min.
3'' min. / 8'' max.
18'' min.
16'' min.
IN ANY DIRECTION
16'' min.
IN ANY
DIRECTION
90° INTAKE TERMINAL
18'' min.
90° INTAKE TERMINAL
18'' min.
TEE VENT TERMINAL
Clapet
de retenue
Pompe
circulatrice
Arrivée d’eau froide
Eau chaude
vers la
maison
Échangeur
d’air
Chauffe-eau
8'' min.
Dans toutes directions
8'' min.
Dans toutes directions
Terminaison
de l’entrée d’air 90˚
Terminaison
de l’entrée d’air 90˚
Terminaison d’évent en «T»
2"
18'' min.
3'' min. / 8'' max.
18'' min.
18'' min.
18'' min.
Entrée d’eau pour
le circuit de chauffage
Sortie d’eau
pour le circuit
de chauffage
Outlet to the
space heating
circuit
Inlet from
the space
heating
circuit
