Gas Insert Aeration System; Gas Pipe Pressure Testing; Optional Brick Panel - FPI Gas Insert U35-LP1 Owners & Installation Manual

INSTALLATION
GAS PIPE
PRESSURE TESTING
The appliance must be isolated from the gas
supply piping system by closing its individual
manual shut-off valve during any pressure
testing of the gas supply piping system at
test pressures equal to or less than 1/2 psig.
(3.45 kPa). Disconnect piping from valve at
pressures over 1/2 psig.
The manifold pressure is controlled by a
regulator built into the gas control, and should
be checked at the pressure test point.
Note: To properly check gas pressure, both
inlet and manifold pressures should
be checked using the valve pressure
ports on the valve.
1) Make sure the valve is in the "OFF"
position.
2) Loosen the "IN" and/or "OUT" pressure
tap(s), turning counterclockwise with a 1/8"
wide fl at screwdriver.
3) Attach manometer to "IN" and/or "OUT"
pressure tap(s) using a 5/16" ID hose.
4) Light the pilot and turn the valve to "ON"
position.
5) The pressure check should be carried out
with the unit burning and the setting should
be within the limits specifi ed on the safety
label.
6) When fi nished reading manometer, turn
off the gas valve, disconnect the hose and
tighten the screw (clockwise) with a 1/8"
fl at screwdriver. Note: Screw should be
snug, but do not over tighten.
SIT Valve Description
1) Gas on/off knob
2) Manual high/low adjustment
3) Pilot Adjustment
4) Thermocouple Connection - option
5) Outlet Pressure Tap
6) Inlet Pressure Tap
7) Pilot Outlet
8) Main Gas Outlet
9) Alternative TC Connection Point
10
GAS INSERT
AERATION SYSTEM
The air shutter can be adjusted by moving the
adjusting wire up or down. The wire is accessed
through the bottom louver opening. Open the air
shutter for a blue fl ame or close for a yellower
fl ame. The burner aeration is factory set but
may need adjusting due to either the local gas
supply or altitude.
Minimum Air Shutter Opening:
1/8" Natural Gas
1/4" Propane
CAUTION: Carbon will be produced if air
shutter is closed too much.
Note: Any damage due to carboning
resulting from improperly setting
the aeration controls is NOT covered
under warranty.
Note: Aeration Adjustment should only
be performed by an authorized FPI
Installer at the time of installation or
service.
OPTIONAL
BRICK PANEL
1) Unwrap the brick pattern panels from the
protective wrapping.
2) Remove the glass front if it is already
installed (see manual).
3) Put the rear brick panel fl at against the back
of the unit.
4) Before installing the side brick panels,
loosen the screws for the brick tabs enough
so that you can slide the brick tabs on to the
screws easily but that the tabs are secure.
For the location of the side brick tab screws
see diagram 1.
Diagram 1
5) Remove the brick tabs and slide the side
brick panels into position. Install the brick
tabs. See diagrams 1 and 2.
Diagram 2
U35 FPI Direct Vent Gas Insert