Napoleon NZ62CH Installation Instructions Manual

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