Combustion Air, Unit Operation & Checkout - Kingsman VFI25N Installation Instructions Manual

11. COMBUSTION AIR
Indoor combustion air must conform to the
requirements of the applicable code: Canada
Installation Code CAN/CGA-B149.1 or .2 (USA.)
National Fuel Gas Code ANSI-Z223.1
In homes of normal construction, sufficient
combustion air can usually be obtained by air
infiltration. The fireplace insert must be installed in
area that is free of excessive dust and dirt and where
ventilation is sufficient to provide proper combustion
of gas, proper venting and the maintenance of safe
operating temperatures. When infiltration does not
provide adequate air for combustion, outside air shall
be introduced as specified in the installation codes.
The draft hood must be installed so as to be in the
same atmospheric pressure zone as the combustion
air inlet to the appliance.
To check if there is adequate air for combustion
perform the following procedure: (See Figure 5)
I. Close all windows and doors.
2. Turn all exhaust fans on high.
3. Turn on fireplace insert.
4. To check for proper draft action a draft meter
with a minimum graduation of 0. 01 inches of
water column is required. The meter is to be
attached to the 1/4 inch aluminum tube
originating in the draft hood using high
temperature silicone (tubing should not be
allowed to contact glass and unit should be
allowed to run for a minimum of 10 minutes;
area of sensing tube will become quite hot).
A minimum draft pressure of. 02 inches of
water column is required to ensure that there
is no spillage at the draft diverter. This
number was arrived at through testing under
various severe conditions, actual vent
pressures under normal conditions will be
much higher. A draft pressure under. 02 will
indicate either a blocked vent, down draft,
adverse house de-pressurization or improper
venting.
• If there is not the proper draft then provide outside
air as instructed by the applicable code.
NOTE: DO NOT OBSTRUCT FLOW TO THE
FRONT OF THE FIREPLACE AS THIS COULD
AFFECT COMBUSTION AND BE A FIRE
HAZARD. FAILURE TO DO SO COULD
RESULT IN PROPERTY DAMAGE, INJURY
AND/OR LOSS OF LIFE.
12. UNIT OPERATION & CHECK-OUT
Before trying to light the unit for the first time it is
advisable to purge the gas. Once the gas line is
purged it is best to wait a few minutes with a few
open windows before trying to light the fireplace.
For detailed lighting instructions see page 23.
Start-up Instructions:
1. Turn wall switch ( or thermostat) to the off
position.
2. Turn gas valve to "PILOT" and depress.
3. Press the red spark button repeatedly until a
steady pilot flame is present.
4. Keep the "PILOT" position on the gas valve
depressed for approximately 45 seconds.
5. Turn gas valve to the on position.
12
(Figure 5)