Camus Hydronics DynaMax DMH201 Installation And Service Manual page 17

CAUTION
Do not operate appliance with the terminal cap removed as
this may result in the recirculation of flue products. Water
may also flow into the combustion air pipe and into the
burner enclosure.
Length of Air Inlet Pipe
The maximum total length of the vertical roof top combustion
air inlet pipe as installed from the appliance to the terminal
cap must not exceed 100 equivalent feet (30.5m) in length.
IN GENERAL
•
The operation of exhaust fans, compressors, air handling
units etc. can rob air from the room, creating a negative
pressure condition leading to reversal of the natural draft
action of the venting system. Under these circumstances
an engineered air supply is necessary.
•
If the appliance is to be installed near a corrosive or
potentially corrosive air supply, the appliance must be
isolated from it and outside air supplied as per code.
•
Potentially corrosive atmospheres will result from
exposure to permanent wave solution, chlorinated waxes
and cleaners, chlorine, water softening chemicals,
carbon tetrachloride, halogen based refrigerants, Freon
cleaning solvents, hydrochloric acid, cements and glues,
masonry washing materials, antistatic fabric softeners,
dry cleaning solvents, degreasing liquids, printing inks,
paint removers, etc.
•
The equipment room MUST be provided with properly
sized openings to assure adequate combustion air and
proper ventilation when the unit is installed with a proper
venting system.
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