Camus Hydronics DMC083 Installation, Operation And Service Manual - page 62
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•
Remove the direct spark igniter and the flame
sensor.
•
Remove the T-25 screws holding the front burner
flange in place to gain access to the burner.
•
The burner can now be pulled horizontally out of
the heat exchanger cavity.
•
Use care to prevent damage to the knitted metal
fiber of the burner surface.
•
Wash the burner with water, such as a garden
hose. Never wipe or brush the surface of the
burner.
•
For optimal results immerse the burner port area in
a solution of dishwashing detergent and hot water.
DO NOT use chlorine based solvents or cleaning
agents on the burner. Allow the burner to remain in
the solution for a short period of time to remove,
dust, dirt and oil or grease laden contaminants.
•
Rinse the burner thoroughly with clean water to
remove any residue from the detergent cleaner
•
The burner should be air dried after removal from
the cleaning solution and rinsing.
•
Check all gaskets and replace as necessary.
Gaskets affected by heat will not reseal properly
and must be replaced.
•
Replace the burner in the reverse order that it was
removed.
NOTE
When the combustion air fan is removed for any reason, the
inlet to the burner must be covered to prevent further foreign
objects from falling into the burner. Always look inside the
burner to check for dents. Do not place a burner back into
operation if the inner distribution screen has been dented
during the service operation, call the factory for
recommendations. Use care when removing and handling
the burner, Sharp objects or impact may damage or tear the
metal fiber surface rendering the burner unfit for service.
11.8
REMOVAL OF COMBUSTION CHAMBER
LINING
The combustion chamber insulation in this appliance
contains ceramic fiber material. Ceramic fibers can be
converted to cristobalite in very high temperature
applications. The International Agency for Research on
Cancer (IARC) has concluded, “Crystalline silica in this form
of quartz of cristobalite from occupational sources is
carcinogenic to humans (Group 1)”. Normal operating
temperatures in this appliance are below the level to convert
ceramic fibers to cristobalite. Abnormal operating conditions
would have to be created to convert the ceramic fibers in this
appliance to cristobalite.
The ceramic fiber material used in this appliance is an
irritant; when handling or replacing the ceramic materials it is
advisable that the installer follow these safety guidelines.
•
Avoid breathing dust and contact with skin and
eyes.
o
Use NIOSH certified dust respirator (N95).
This type of respirator is based on the
OSHA requirements for cristobalite at the
time this documentation was written. Other
types of respirators may be needed
depending on the job site conditions.
Current NIOSH recommendations can be
found
on
the
NIOSH
website
at
http://www.cdc.gov/niosh/homepage.html
.
NIOSH
approved
respirators,
manufacturers, and phone numbers are
also listed on this website.
o
Wear long-sleeved, loose fitting clothing,
gloves, and eye protection
•
Apply enough water to the combustion chamber
lining to prevent airborne dust.
•
Remove the combustion chamber lining from the
water heater and place it in a plastic bag for
disposal.
•
Wash potentially contaminated clothes separately
from
other
clothing.
Rinse
clothes
washer
thoroughly.
NIOSH stated First Aid
•
Eye: Irrigate immediately
•
Breathing: Fresh air
11.9
COMBUSTION AND VENTILATION AIR
Check frequently to be sure that the flow of combustion air to
the appliance is not obstructed. Unless air is piped directly to
the heater combustion air must be provided to the
mechanical room with openings sized per the requirements
of the current B149 or National Fuel Gas Code. The
DynaMax is setup to allow outdoor combustion air to be
connected
directly
to
the
appliance.
It
is
highly
recommended that combustion air be connected directly to
the appliance. For installations in a common boiler room with
atmospheric appliances or if there is the possibility of
negative pressure in the boiler room, the air inlet must be
piped directly to the DynaMax.
11.10 GAS VALVE VOLTAGE
This appliance uses a transformer to supply a 24 volt
signal to the gas valve. The voltage on the secondary
side should be 24 to 28VAC when measured with a
voltmeter. A secondary voltage of 21VAC or less
supplied to 24VAC components may cause operational
problems.
11.11 COMBUSTIBLE MATERIALS
CAUTION
Keep appliance clear from combustible materials; do not
store GASOLINE and other flammable vapors and liquids in
the proximity of the appliance.
11.12 FREEZE PROTECTION FOR INDOOR &
OUTDOOR INSTALLATIONS
Installations are not recommended in areas where the
danger of freezing exists. Proper freeze protection must be
provided for appliances installed outdoors, in unheated
mechanical rooms or where temperatures may drop to the
freezing point or lower. If freeze protection is not provided for
the system, a low ambient temperature alarm is
recommended for the mechanical room. Damage to the
appliance by freezing is non-warrantable.
•
Location - Heating boilers, hot water supply boilers or
water heaters must be located in a room having a
temperature of at least 40ºF (5ºC).
•
Caution - A mechanical room operating under a
negative pressure may experience a downdraft in the
flue of an appliance that is not firing. The cold outside
air may be pulled down the flue and causing a frozen
heat exchanger. This condition must be corrected to