This kit must not be used in mobile homes.
Consult with a heating specialist
to ensure a proper duct layout for your home. Longer runs should have larger
diameter duct systems.
Maximum allowable duct length is 50 feet (between
appliance and most remote outlet).
(A 50 foot run length loses approximately
15% output) If the NZ62CH is installed at the bottom of the unit (CZ/NZ-26(WI)),
it could introduce a cool draft into the room that the appliances is installed in.
When attached to the top or sides of the unit, it provides a higher heat output.
Combinations of one or more hot air gravity vents can be used in conjunction with
the central heating option.
A maximum of ten 4” diameter, six 5”diameter or fi ve 6” diameter
runs may be installed. (FIGURE 1)
The cross sectional area of the
ducting system must have a minimum of at least 50 sq. inches
that is open at all times.
(Example: If a 4” diameter pipe with a cross
section of 12 sq. inches is used, the minimum ducting allowed would
be 5 runs of 4” pipe. If a 5” diameter pipe with a cross section of 20 sq.
inches is used, the minimum ducting allowed would be 3 runs of 5” pipe.
If a 6” diameter pipe with a cross section of 28 sq. inches is used, the
minimum ducting allowed would be 2 runs of 6” pipe.)
Use either rigid or
fl exible metal ducts, 8” in diameter or equivalent and support every three
feet. For rigid duct work, use the insulated mounting clamps to reduce vibration noise. When
using these clamps, run screws through the blower fl anges only, never into the duct. Duct runs
passing through an unheated part of the home should be insulated.
Care should be taken when installing the blower so that the blower noise does not affect
rooms needed to be kept quiet. Only one blower may be installed. Ensure that the installation
location is accessible for future maintenance. Turning the blower on causes negative pressure
in the duct work which, in turn, opens the backdraft damper. This damper prevents hot air
from entering the duct work unless the blower is operating. The damper prevents the ducts
from overheating any surrounding combustible materials and causing a fi re.
Hot air ducts
between the appliance and the blower must be run at a 1 inch minimum clearance to
combustibles; at this point, clearances are reduced to zero. Insulation of these hot air
ducts is not required when maintaining these clearances to combustibles.
If the room containing the appliance can be self-contained (door closed), be sure to provide
suffi cient combustion air. Insuffi cient combustion air may create draft or smoking problems.
Install ventilation grilles with a minimum opening of 75 square
inches between the self contained room and an adjoining open
space if smoking problems exist.
The line voltage thermostat provided should be located in the
main room to be heated (do NOT install in the room containing
the appliance) and controls the central heating blower. Wire
in the blower using a 115 volt, 15 amp breaker. A shut-off or
damper may not be installed on the outlet or duct work feeding
the room containing the thermostat. Use the line voltage
thermostat provided. A 24V or millivolt thermostat will not
function.
A factory installed thermodisc, located inside the outer shell
above the louvered control door, ensures that the blower
operates only when the appliances is in use and hot. The switch
is also used to operate the optional fans. Venting options may be
incorporated as shown below.
NZ62CH CENTRAL HEATING KIT
INSTALLATION INSTRUCTIONS
INSTALLATION TO BE DONE BY A QUALIFIED INSTALLER to conform with local codes. In absence of local codes install to the
current National Building Code in Canada or to regional building codes in the United States. It must be electrically connected and
grounded in accordance with local codes. In the absence of local codes, use the current CSA C22.1 CANADIAN ELECTRICAL CODE
in Canada or the ANSI/NFPA 70 NATIONAL ELECTRIC CODE in the United States.
This kit includes:
QTY.
DESCRIPTION
PART#
1
Blower
W062-0006
1
Line
Voltage
Thermostat
W690-0005
1
Backdraft
Damper
Assembly
W010-0373
1
Wall Mounting Bracket
W500-0033
2
Mounting
Clamps
W155-0005
FAN
L2
L1
THERMODISC
G
KB35 (RHEOSTAT {VARIABLE SPEED SWITCH})
or WALL SWITCH or THERMOSTAT
OPTIONAL BY-PASS
(SUMMER) SWITCH
NOT SUPPLIED
THERMOSTAT
A by-pass (summer) switch (not supplied - overrides the thermally
activated switch enabling the user to run the blower without heat).
FIGURE 1
