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C38-DV Gas Fireplace
Part No. XG0118C
Vent Installation
This section covers the installation of direct venting and ter inations.
Installation Requirements
nC38-DV fireplaces are certified for use with Montigo Pre iu Series
(5" / 8") venting co ponents. The C38-DV Top ent ay be used
with Standard Series (4"/7") co ponents on vertical vent runs only.
nMini u 1" clearance to co bustibles required for vent pipes
nUse only certified Montigo vent components. (Use of other
parts will void the Montigo warranty, and ay i pede the
operation of the fireplace.)
nAll joints ust be secured with a ini u of two screws per joint
nVent ter inations ust not be recessed in walls or siding
nHorizontal runs ust be supported by a ini u of two supports
per horizontal run. A ini u of one screw on each side of
support is also required
nFlex vent sections ay be stretched up to 50% of their total length
(eg. a 24" section ay be stretched to 36")
nMaxi u horizontal run for a flex section with no vertical rise is 3 feet.
nFlex vent sections over 3 feet ust fall within the li its set by the
venting graph and ust have a ini u vertical rise of 3 inches
per foot of flex.
nSolid vent sections ay be cut less than half way fro the tapered end
nVenting co ponents can be used in any co bination of solid/rigid
pipe or flex pipe and in any orientation (Male connectors can face
in any direction)
ent Terminations
Selecting A Termination Location
Choosing your vent ter ination location will help to deter ine whether
you need to use a top vent or rear vent fireplace. Figure 6, below,
shows typical fireplace locations and the venting options they provide.
For a ore detailed diagra of allowed ter ination locations, see
Appendix A.
Cautions:Cautions:
Cautions:Cautions:
Cautions:
Installing The Gas Line
The gas line ust be installed before finishing the C38-DV Fireplace.
Natural Gas requires a ini u inlet gas supply pressure of 5.5"
W.C. & a anifold pressure of 3.5" W.C. Propane Gas requires a
ini u inlet gas supply pressure of 11" W.C. & a anifold pressure
of 10" W.C. Provision ust also be ade for a 1/8" N.P.T. plugged
tapping and be accessible for test gauge connection i ediately
upstrea of the gas supply controls to the appliance. The fireplace gas
connection and the ain operating gas valve is located behind the
re ovable brass tri at the botto of the unit and need only be
attached to the gas line with an approved fitting, as required by the
applicable installation codes.
Installation
Figure 6. Fireplace locations and vent terminations.
Note: After gas line is connected, each appliance connection,
valve and valve train ust be checked while under
nor al operating pressure with either a liquid solution, or
leak detection device, to locate any source of leak. Tighten
any areas where bubbling appears or leak is detected until
bubbling stops co pletely or leak is no longer detected.
DO NOT use a flame of any kind to test for leaks.
Installing The Remote Switch
The C38-D 's gas valve, located behind the lower brass tri , ay be
connected to a wall switch. The valve generates its own power on a
millivolt circuit. Use only low voltage wire, and DO NOT connect
any external power to it.
Refer to Figure 27 for wiring require ents.
Note: The switch location ust not exceed 30' fro the fireplace.
Figure 5. Gas line access.
The appliance and its individual shutoff valve ust be disconnected
fro the gas supply piping syste during any pressure testing of that
syste at test pressures in excess of 1/2 psig (3.5 kPa).
The appliance ust be isolated fro the gas supply piping syste by
closing its individual anual shutoff valve during any pressure testing of
the gas supply piping syste at test pressures equal to or less than 1/2
psig (3.5 kPa).
nVent ter inations can be very hot. If the ter ination is less than
7 feet above a public walkway, it should be fitted with a certified
Montigo Heat Guard. (Part no. PTKOG)
nDo not obstruct, or atte pt to conceal, the vent ter ination.
These actions will affect the operation of the fireplace, and ay
be hazardous.
nIn heavy snow areas, take extra care to prevent snow buildup
fro obstructing the vent ter ination.
