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installation
OPTIONAL FAN KIT INSTALLATION
OPTIONAL FAN KIT INSTALLATION
LISTINGS AND CODE
APPROVALS
This Fan Kit has been approved for use with
Mansfi eld L850B ST.
Check with your local building code agency
before you begin your installation to ensure
compliance with local codes, including the
need for "permits" and follow-up inspections.
If any problems are encountered regarding
code approvals, or if you wish clarifi cation on
any of the instructions contained here, contact
your local dealer.
Diagram 1: Guide for possible air duct runs and
locations. Keep duct length and number of bends
to a minimum. Maximum duct length is 9.0m.
The Fan Kit 946-591 does not contain any fl ue-
ing a separate Flex Kit is required 946-596. This
Flex Kit contains one length of 4.5 metres of fl ex
fl ueing. If 9.0 metres of fl ex ducting is required
you will need to purchase an additional Flex Kit.
Item No.
Description
No
1
240V Fan As-
7
sembly
2
Duct Flange-
8
Fan
3
Adapter Round
9
to Oval
4
Angle Bracket
10
5
Junction Box
11
6
Wall Adapter
Plate
919-751
20
INFORMATION
The Fan Kit increases the eff ectiveness of
your fi replace by dispersing warm air from the
fi replace to remote locations in the same room
or other rooms in your home.
Up to two kits may be installed on the fi replace.
Important Installation Notes
1) The appliance installation must conform with
local codes and installation codes.
2) The appliance when installed, must be
electrically grounded in accordance with local
codes.
3) This kit is tested and safe when installed
in accordance with this installation manual.
Please read all instructions before starting
installation and follow all instructions carefully
during installation.
4) Installation of this kit must be performed by
a qualifi ed service technician.
5) The Fan Kit must be installed only as speci-
fi ed. Any modifi cations of the kit or components
will void the warranty and may cause a fi re
hazard.
6) Plan the location of the fi replace and the
warm air duct runs, see diagram 1 as a guide
for possible duct runs and locations.
Description
Aluminum Flex 4.5m
Duct Mounting Plate
Duct Flange-Stove
Sidewall Grille
Cable Clamp
GENERAL
1
L850B ST
NOTE: Airfl ow through the duct system is affected
by the duct length and number of bends. Keep
the length and bends to a minimum to maximize
performance.
MINIMUM FRAMING
CLEARANCES
* Wall studs must be 407mm on centre for
mounting fan housing.
* Fan Housing: Maintain a (6mm) clearance
from fan housing to combustible material.
* Wall Registers must be 102mm above fl oor
and / or 102mm below ceiling.
1) Determine the location of the air register/fan
housing assembly. Cut a 121mm x 406mm hole
between framing members (wall studs or fl oor
joists). Maintain a 6mm clearance from fan housing
to combustible material. See Framing Clearances
section.
Minimum Fan Duct
Clearances
The fan ducting requires a minimum of
25mm clearance to combustibles.
Minimum 102mm
from ceiling
Minimum 102mm
from fl oor
Mansfield L850B ST Woodfire
12.19.16
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