Maxon Telecom MPB3328CNE - Manual (Page 10)

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 10
Gas
Stub
¹ ₂" x ³ ₈" Flare
Shut-Off Valve
³ ₈" Flex Tubing
³ ₈" NPT x ³ ₈
Flare Fitting
³ ₈" Nipple
³ ₈" Union
³ ₈" Close Nipple
³ ₈" Shut-Off Valve
¹ ₂
x
³ ₈ "
Reducer
Gas
Valve
Gas Flex Line Connector
Figure 20
Figure 19 - GAS CONNECTION
Turn on gas supply and test for gas leaks using
a soapy water solution. Never use an open
fl ame to check for leaks.
OPENING CONTROL
COMPARTMENT DOOR
A. Mix a 50% dish soap, 50% water solution.
B. Light the appliance (refer to the lighting
instructions provided in the Homeowner's
Care and Operation Instructions).
C. Brush all joints and connections with the
soapy water solution to check for leaks. If
bubbles are formed, or gas odor is detected,
turn the gas control knob to the “OFF” posi-
tion. Either tighten or refasten the leaking
connection and retest as described above.
D. When the gas lines are tested and leak free,
observe the individual tongues of fl ame on
the burner. Make sure all ports are open and
producing fl ame evenly across the burner. If
any ports are blocked, or partially blocked,
clean out the ports.
Step 8. OUTSIDE AIR KITS – Optional
outside make-up air kits, Model FOAK-4 or
FAOK-4LD, may be used with these appliances.
Refer to the installation instructions packaged
with the air kits for specifi c installation informa-
tion. If used, the outside air kit must be installed
before the fi replace is framed and enclosed in
the fi nished wall.
Outside air drawn into the fi replace supplies
air to the fi re for combustion. Only one outside
air duct is necessary, if installed. See Figure
1 on Page 2 and Figure 4 on Page 5 for the
location of the unit's outside air inlet.
If additional length of duct is necessary, pur-
chase locally available U.L. Class 0 or Class 1
metallic ducting. The duct may extend up to 50'
(15.24 m) in any direction.
Note: When installing the air duct vertically, DO
NOT terminate the duct closer than 3' below
the chimney top.
Outside combustion air ducting may be run
upwards or vertically through framing and ceil-
ing joists, with the hood installed through an
outside wall and 3' (1 m) below the termination.
Ducting may also be run downward through
fl oor joists and under the home to a ventilated
crawlspace not considered part of the living
area of the home.
Note: Do not terminate outside air kit in attic
space under any circumstances.
Figure 21
Operate the actuator through several cycles
including the closed position. Ensuring proper
operation and freedom of movement. Return
the actuator arm to the closed position.
Outside Air Control Lever
and Securing Screw Location
on Left Side of Cabinet in Lower Control
Compartment Area
Control
Valve
Lower Control
Compartment
Door
Open the lower panel or louver assembly by
pushing in the right side of the panel or louver
assembly and then lowering it forward and
down.
Outside Air Control Lever
Outside Air Control Lever
Securing screw
Air Shutter in Closed Position
Outside Air Control Lever
Outside Air Control Lever
Securing Screw Removed
Air Shutter in Open Position
Make gas line connections. All codes require a
shut-off valve mounted in the supply line. Figure
19 illustrates two methods for connecting the
gas supply. The fl ex-line method is acceptable
in the U.S., however, Canadian requirements
vary depending on locality. Installation must be
in compliance with local codes.
These appliances are equipped with a gas fl ex
line for use (where permitted) in connecting the
unit to the gas line. A gas fl ex line is provided
to aid in attaching the B-Vent appliance to the
gas supply. The gas fl ex line can only be used
where local codes permit. See Figure 19 for
fl ex line description. The fl ex line is rated for
both natural and propane gas. A manual shut off
valve is also provided with the fl ex line.
The gas control valve is located in the lower
control compartment. To access the valve open
the lower control compartment door (see Fig-
ure 20). The millivolt control valve has a 3/8"
(10 mm) NPT thread inlet port. The electronic
control valve has a 1/2" (13 mm) NPT thread
inlet port and is fi tted with a1/2" x 3/8" (13 mm x
10 mm) NPT fi tting.
Secure all joints tightly using appropriate
tools and sealing compounds (ensure propane
resistant compounds are used in propane
applications).
Step 7. CONNECTING GAS LINE After completing the installation of the optional
outside air vent system the outside air control
lever must be put in service and tested to en-
sure proper operation before completing any
enclosure around the fi rebox. Failure to do
so may result in extensive and costly rework.
Before the operation of the vent system can
be tested, the lever securing screw must be
removed. See Figure 21.
The hand operated outside air control lever is
located on the left side of the fi replace opening.
See Figure 21.
To open the outside air shutter, open the bot-
tom control access panel, reach into the control
compartment, and pull the outside air control
lever all the way out. The outside air shutter
should be fully open when the fi replace is in use
and completely closed when the fi replace is not
being used. Closing it when not in use will prevent
outside cold air from entering the dwelling.
CAUTION
Never locate inlet where it can be
blocked by shrubs, snow drifts,
etc. Never locate inlet in garage
or any area where there is another
fuel burning appliance or products
emitting combustible gases such
as paint, gasoline, etc. In cold
climates, it is recommended the
outside air duct be insulated.