Blower Exhaust Direction; Blower Assembly Installation - John Wood POWER VENTED GAS FIRED WATER HEATER Installation And Operating Instructions Manual

76mm (3 in.)
MIN. LENGTH
Figure 19

Blower Exhaust Direction

The blower assembly may be rotated 90 degree clockwise or
counterclockwise to allow horizontal venting in areas having
restricted space above the water heater. To rotate the blower
outlet, remove the four nuts (with 11/32" nut driver) (see Figure
20), securing the fl ue collector to the blower housing. Pull the
blower assembly forward to free it from the mounting studs.
Rotate the blower housing clockwise or counter-clockwise
and align the four holes and screws together. Reattach the
blower housing to the fl ue collector.
Figure 20
This power vent heater can accept 2" or 3" rubber coupling,
depending on the capacity of the water heater. This coupling
accepts the vent piping and is attached as shown in Figure
26. Refer to Figure 16 and Table 1 to determine vent pipe
sizing for your application.
TERMINATION
MAY BE 90°
ELBOW
RODENT SCREEN
(INSTALL INTO
ELBOW)
457mm (18 in.)
OR ABOVE
ANTICIPATED
SNOW LEVEL
ROOF
LINE
Rubber coupling
11/32" nut
– 15 –

Blower Assembly Installation

1. This power vented water heater comes with blower
assembly installed (see Figure 26).
2. After unit is set in place, make sure blower assembly is
still mounted securely. Make sure there is no damage to
blower.
3. Make sure there is no packing material in the inlet or
discharge of the blower.
4. Make sure that the plastic tubing is still attached from
the air pressure switch to the port on the blower hous-
ing. Make sure the plastic tubing is not folded anywhere
between the pressure switch and the blower housing.
5. This water heater is a polarity sensitive appliance and
will not operate if the power supply polarity is reversed.
Power to this water heater must be wired properly (cor-
rect polarity).
6. Do not plug in power cord until vent system is complete-
ly installed. The Power Vent operates on 110 -120 VAC.
therefore a grounded outlet must be within reach of the
1.8m (6 ft.) flexible power cord supplied with the heater.
The power cord supplied may be used on a unit only
where local codes permit. If local codes do not permit
use of flexible power supply cord, install field wiring. To
connect the heater to field wiring:
a. Make sure the unit is unplugged from the wall outlet.
Remove the screw and open panel on the front of the
junction box on the blower.
b. Install a suitable conduit fitting inside the enclo-
sure.
c. Splice field wiring into existing wiring using code
authorized method (wire nuts, etc).
d. Be certain that the neutral and line connections are
not reversed when making these connections.
e. Ground heater properly. This water heater must
be grounded in accordance with the latest edition of
"Canadian Electrical Code (CAN/CSA C22.1), Part I"
and/or local codes. These must be followed in all cases
if hard wired.
f. Close the panel on the junction box. Make sure that
the access panel is secured shut.
7. The blower discharge boot is made to accept only
straight sections of 2" or 3" pipe. To start off with an
elbow, a short section of the furnished pipe must be cut
and glued into the end of the elbow that will mount on
the discharge boot.