Camus Hydronics MICOFLAME GRANDE Series, Installation, Operation And Service Manual

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6. VENTING
Appliances for outdoor installation are intended to
vent using a listed vent cap.
For indoor installations venting must be in
accordance with Part 7, Venting of Equipment, of
the current National Fuel Gas Code, ANSI
Z223.1, or Section 7, Venting of Equipment and
Air Supply for Appliances, of the current
CAN/CGA
B149, Installation Codes, and
applicable provisions of the local building codes.
Vent connectors serving appliances vented by
natural draft shall not be connected into any
portion of mechanical draft systems operating
under positive pressure.
Horizontal runs of vent pipe shall be securely
supported (approximately every 4 feet) to prevent
sagging and maintain a minimum upward slope of
¼” per foot from the appliance to the vent
terminal.
When an existing appliance is removed from a
common venting system, the common venting
system is likely to be too large for proper venting
of the appliances remaining connected to it .At
the time of removal of an existing appliance, the
following steps must be followed with each
appliance remaining connected to the common
venting system placed in operation, while the
other appliances remaining connected to the
common venting system are not in operation.
a) Seal any unused openings in the
common venting system.
b) Visually inspect the venting system for
proper size and horizontal pitch and
determine that there is no blockage,
restriction, leakage, corrosion or other
deficiency, which could cause an unsafe
condition.
c) Insofar as is practical, close all building
doors and windows and all doors
between the space in which the
appliances remaining connected to the
common venting system are located and
other spaces of the building. Turn on the
clothes dryers and any appliances not
connected to the common venting
system. Turn on any exhaust fans, such
as range hoods and bathroom exhausts,
so they will operate at maximum speed,
do not operate a summer exhaust fan.
Close fireplace dampers.
d) Place in operation the appliance being
inspected. Follow the lighting
instructions. Adjust thermostat so that
appliance operates continuously.
e) Test for spillage at the draft control
device relief opening after 5 minutes of
main burner operation. Use the flame
of a match or candle or smoke from a
cigarette.
f) After it has been determined that each
appliance remaining connected to the
common venting system properly vents
when tested as outlined above, return
doors, windows, exhaust fans, fireplace
dampers and any other gas-burning
appliance to their previous condition of
use.
g) Any improper operation of the common
venting system must be corrected so
that the installation conforms to the
current National Fuel Gas Code, ANSI
Z223.1 or the current CAN/CGA B149,
Installation Codes. When resizing any
portion of the common venting system,
the common venting system should be
resized to approach the minimum size
as determined using the appropriate
tables in Part 11 of the current National
Fuel Gas Code, ANSI Z223, 1 or the
current CAN/CGA B149, Installation
Codes.
Heat exchanger surfaces and vent piping
should be checked every six months for
deterioration and carbon deposits. Domestic
hot water heat exchanger surfaces and vent
piping should be checked every 6 (six) months.
Remove all soot or other obstructions from the
chimney and flue, which might impede draft
action. Replace any damaged or deteriorated
parts of the venting system.
A qualified service technician should follow this
procedure when inspecting and cleaning the
heat exchanger and vent pipe.
1. Turn off electrical power and close
main manual gas shut-off and allow
appliance to cool down
2. Remove the vent pipe running to
chimney. Remove top outer panel and
flue collector access panel. Check heat
exchanger, vent and chimney for
obstruction and clean as necessary.