Montigo R320 Installation & Maintenance Manual page 16

R-Series R320-R420 Indoor Gas Fireplace
Section:
Figure 5f..(Installation.of.Power.Vent.communication..harness)
Step 9. Install the Power Vent. Place the Power Vent into the
Rough-in frame, aligning the Power Vent into final position.
Ensure the Harness is placed down in the Rough-in box when
placing the Power Vent. (Secure the Power Vent in Place with
the supplied hardware).
Tightened
hardware,
4-pcs.
Figure 5g. (Completed.Installation.of.Power.Vent)
Converting to Top Vent / Rear Vent
All R-Series Residential are boxed and shipped as Top Vent
fireplaces. Should your installation specifications require that
you install your Vent system on the Rear of the fireplace,
read the following instructions carefully.
1. Remove the eight machine screws that secure the
10" cover plate to the rear vent take off location of the
fireplace. (Ensure.you.do.not.damage.the.fibre.gasket)
2. Then, carefully Remove the 5" cover plate that is
installed on the inner rear vent take off location. (Ensure.
you.do.not.damage.the.fibre.gasket).
3. Now, remove the Top vent (5".inner.and.8".or.10".outer)
flue Collars. Switch the Collars and Cover plates as
shown in, Figure 10.
CAUTION!
When installing the Rear vent pressure sense tube, aim
into the rear vent opening the same way as pictured in
this installation, Figure 11. A loose fitting of the flare nut
will result in a malfunctioning or problematic fireplace
installation.
Page 16
Installation
Communication
Harness.
TOP of Power Vent,
(Note Quantity of
louvers).
Note louver
direction
5" Flue Cover Plate, Typ.
All models (with gasket)
8" Flue Cover Plate,
R320, R420 (with gasket)
Figure 10. Flue cap installation, Top Vented fireplace.
Converting the Pressure Sensing tube from Top
vent to Rear vent
All R-Series Residential are shipped as Top vent fireplaces.
The fireplace will have installed a formed pressure
sensing tube. This tube which is installed at the factory is
manufactured from 1/4" aluminium tubing, Figure 11.. It will
be required to remove the pre-installed 1/4" tube and Replace
with the supplied Rear vent tube / part as described below.
Aim the pressure sensing tubing (Top Vent or Rear Vent) as
shown in Figure 11 to activate the control System. (Oval.
below)
Top Vent
Opening
Pressure sensing
tube, (Top Vent
configuration when
shipped). Replace
with the part for Rear
vent configuration.
Replace tube from top vent configu-
ration with Part supplied with the
fireplace for rear vent configuration.
Figure 11. Fireplace Air Proving switch tubing configuration.
Testing the System
The R-Series Residential Control and Power Vent System
can be safely tested prior to finish framing the Fireplace.
This test can be done quickly and efficiently to ensure all
systems function according to the design specifications.
The fireplace should be installed on the rough-in frame,
Figure 6a with the Power Vent Module and the Vent
Termination connected.
5" Inner Flue Collar, Typ.
All models (with gasket)
8" Outer Flue Collar, R320,
R420 (with gasket)
Fitting installed
inside fireplace
Flare Nut on (Top
& Rear, pressure
sensing tubing, (do
not overtighten).
Rear Vent Opening
XG0770 - 020911