Unit Adjustment - Kingsman VFI25N Installation Instructions Manual

Sequence of operation:
1. Turn On/Off switch ( or thermostat) to the
on (call for heat) position.
2 Main burner lights.
3. If blower variable speed switch is in the
"On" position then the blower will turn on
automatically once the unit is hot enough.
4. Once the On/Off switch is turned off ( or
thermostat is satisfied) then the flame will
extinguish.
5. Blower will keep on running until the fire
place has cooled down.
Shut Down Instructions:
1. Turn On/Off switch ( or thermostat) to the
off position.
2. Depress gas valve and turn to "OFF"
position.
13. CHECK-OUT
Once installed, the unit should be operated at least
three (3) times to ensure that all is in working
order. NOTE: MANUFACTURING OILS AND
PAINT WILL SMOKE DURING INITIAL
FIRING OF APPLIANCE. OPEN WINDOWS
FOR VENTILATION.

14. UNIT ADJUSTMENT

BEFORE LEAVING, THE INSTALLER
SHOULD MAKE
CHECKS:
(a) BTU/INPUT / GAS PRESSURE
The fireplace input is marked on the Rating Plate.
The gas valve comes factory pre-set to the proper
rated pressure and adjustment should not be
necessary . If there is any question of input then it
may be necessary to check manifold pressure.
Manifold pressure on the S.I.T. Nova valve can be
measured by loosening the slotted pressure taps on
the front bottom left of the valve. ('E' Inlet
Pressure, and 'A' Manifold Pressure) and
connecting a manometer .
THE FOLLOWING
Pressure ranges are as listed below:
Gas Supply Pressure (inches w.c.)
Min
Natural Gas 4.5
L.P. (propane) 10.8
Manifold Pressure (inches w .c. )
Normal(HI)
Natural Gas
L.P. (Propane)
The unit as shipped is equipped for operation for 0
to 4500 ft.
(b) MAIN BURNER / PILOT
The pilot flame size is factory set. The pilot flame
should be at least 1.5 inches ( 4 cm) long. The
flame should be impinging on the pilot generator .
Pilot size can be adjusted through the pilot adjust
screw. If the pilot flame is too small and can not be
adjusted through the pilot adjust screw then there is
the possibility of dirt in the pilot orifice in which
case the pilot orifice should be cleaned or replaced.
The main burner should be allowed to operate for
15 to 20 minutes before making any adjustment to
the unit.
The air shutter should never be closed all the way.
For Natural Gas and Liquid Propane it is
recommended that the air shutter be set to Factory
Specifications. (See Page 4) .
If there is too much primary air then the flame
will be very blue with yellow tips and smaller
flame height.
If there is too little primary air then the flame
will be yellow with orange/red tips on the back
flames with dark sooty elongated tips. In this
condition the glass and logs could show signs of
soot accumulation within 10 to 20 minutes.
13
Normal Max
7.0 9.0
11.0 12.0
(LOW)
3.5 1.6
10.0 6.3