andrews CSC39 Installation Manual, Operation And Service Manual page 18

INSTALLATION
2. Vertical Flue Terminal (Through the Roof - Optional)
a) Determine the exact location where the roof flue terminal will exit the roof, ensuring
the flue system clears all obstructions. For pitched roofs, the flue cap must be the
distance above the roof line as specified, (300mm to base of Flue Clamp, minimum).
The top of the roof terminal may extend up to 760mm (2.5ft) above the roof line as
required.
b) Run the coaxial flue system to the proper distance below the roof sheathing required
for the correct distance of the roof terminal above the roof surface. See the following
sections on installing the rest of the flue system.
c) Cut a minimum 165mm (6.5in) diameter hole for the smaller flue size or a 216mm
(8.5in) minimum diameter hole for the larger flue size centred in the desired location
for the roof terminal. See Fig. 6.
d) Centre the roof flashing over the hole using either the flat roof flashing or universal
flashing for pitched roofs.
e) Slip the storm collar supplied with the roof flashing kit over the outside of the flue
terminal and align with the flue pipe end below roof opening. Insert the terminal into
the flue pipe.
f) Fasten the roof flashing with nails. Seal the flue terminal and flashing to the roof.
g) Install the gasketed clamp around the joint between the flue terminal and flue pipe.
(From Water Heater)
INSTALLING FLUE PIPING SECTIONS
a) The coaxial flue pipe sections are designed to fit tightly together and seal with the
integral flue pipe seal and supplied pipe clamps. No silicone caulk or special tools are
required.
b) All flue sections and fittings come complete with silicone flue pipe gaskets and outside
gasketed pipe clamps for making air tight connections between the flue pipe
connections.
d) Raise the flue pipe to the flue terminal connection with the gasketed end of the flue
pipe towards the flue terminal. Insert the flue pipe into the flue terminal connection
and grasp the end of the flue pipe while twisting and pushing the pipe until inserted
all the way into the flue terminal.
e) Connect the outside pipes together using the gasketed clamps provided. The flue
pipes have ribs located near each end. When the flue piping is connected, the
gasketed clamps shall cover the ribs and joints of the connecting flue tubes. Support
each pipe section with hangers attached to the supporting joists in the wall or ceiling.
f) Continue connecting pipe sections together with clamps and supporting with hangers.
Flat Roof
Flue Terminal Pipe
Flue Terminal Pipe
Flue Pipe
Flue Terminal
Storm Collar
Roof Flashing
(Nail & Seal
To Roof)
Hole Through Roof
SECTION 3
FLUE
SYSTEMS
Fig 6.
15