Regency MANSFIELD L850B ST Owners & Installation Manual page 21

L850B ST
NOTE: Installation of Fan Kit should be done prior
to installation of the wall.
L850B ST Mansfi eld
2) Mount and secure the fan housing assembly to
framing members, the front of the fan housing will
protrude 12.7mm out of the wall so it may be fi nished
with drywall, etc. See Diagram 2
3. Install the air duct run. Secure the duct to the
duct collar on the unit and the fan housing with 3
screws per end.
Diagram 1:
Front View
12.7mm
Diagram 2: Side View - Secure fan housing
to minimum 45mm framing.
Round Air Duct: Attach the 152.4mm round air
duct (supplied) to the fireplace collar and run the
duct to the fan housing. Attach the round-to-oval
adapter to the fan housing and the air duct to
the adapter
Mansfield L850B ST Woodfire
919-751
Air Duct
45mm
4. Install the On/Off switch in a convenient
location. This switch controls the fan operation.
NOTE: Variable speed or Rotary 3 speed switch
(not supplied) can be fi tted.
5. Wire up the the fan, wall switch and power
supply per local codes. See wiring diagram as
reference.
*Electrician to supply wiring
6. Screw fan junction box to the fan housing.
7. Screw the Register Adapter Frame and the
Air Register to the Fan Housing See Diagram 4.
45 x 90 mm
Diagram 4
8. Remove the knockout on the top of the unit.
Remove the second knockout, located below
the top knockout.
OPTIONAL FAN KIT INSTALLATION
OPTIONAL FAN KIT INSTALLATION
Fan Housing
Round to Oval
Adapter
Secure with 3 Screws and
Aluminum Duct Tape at Unit
Remove the knock out
2
9. On the top of the unit, bend the 3 tabs up. Insert
the Duct collar. Secure the collar to the 3 tabs with
screws.
Bend the tabs upwards
Duct collar secured
with screws
10. The fan duct is now ready to be attached to the
unit. Slide the ducting over the collar and secure
with screws.
11. Final step is to double check the fan ducting
connections at both the unit and fan. Next en-
sure there is a minimum of 25mm clearance to
combustibles. Strap and secure the fan duct.
Double check the operation of the fan and all
electrical work is completed.
installation
21
12.19.16