Camus Hydronics MicoFlame Grande MFH2000 Installation, Operation And Service Manual - page 27
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11
OPERATION AND SERVICE
OPERATION:
Before operating the appliance, the entire
system must be filled with water, purged of air
and checked for leaks. Do not use Stop leak or
other appliance compounds. The gas piping
must also be leak tested.
Any safety devices including low water cutoff,
flow switch and high limit used in with this
appliance must receive periodic inspection
(every six months) to assure proper operation. A
low water cutoff of the float type should be
flushed every six months. All relief valves should
be inspected and manually operated every six
months.
For your safety follow the lighting and operating
instructions below and on the appliance.
To turn on main burner, slowly open firing valve
after pilot is established.
Set primary system controller to desired
temperature.
To turn off appliance close main manual gas
valve, close pilot manual valve and turn off
electric power to system.
SERVICE:
To maintain safe operation and the greatest
efficiency of the appliance, check the main
burner and pilot burner for proper flame
characteristics.
For hydronic heating applications the burner
should be checked at least yearly. For domestic
hot water applications the burner should be
checked every 6 (six) months.
Disconnect main power and turn off gas supply
before servicing unit.
To remove and clean the burner, follow the
detailed procedure in section 10.1 of this manual
After the first season of operation inspect the
heat exchanger and venting. Follow the detailed
instructions in section 7 of this manual.
CAUTION: Label all wires prior to disconnection
when servicing controls. Wiring errors can cause
improper and dangerous operation. Verify
proper operation after servicing.
Any audible sounds in the equipment, like
pinging, crackling or hissing are indications of
scaling or lack of sufficient water flow. Under
these conditions the appliance must be shut
down immediately and the heat exchanger
checked for damage. If the exchanger is
damaged from improper installation or operation,
it is not covered by warranty.
Should your equipment be subjected to fire,
flood or some other unusual condition, turn off
all gas and electrical supply. If you are unable to
turn off the gas, call your gas company or gas
supplier at once. Do not put the unit back in
operation until it has been checked by a
qualified service technician.
Units that are not operated for a period of 60
days or more are considered seasonal
operations. It is recommended that before
returning one of these units to service, the
proper operation of all controls be checked by a
qualified service technician.
12
LIGHTING INSTRUCTIONS
1. Turn off electric power to appliance.
2. Close main manual valve and main
firing valve and wait 5 minutes.
3. Set primary system controller to desired
temperature.
4. Open pilot valve.
5. Turn on electric power to appliance. The
electrode at the pilot should begin to
spark after pre-purge is complete. The
pilot valve will open to permit gas flow to
the pilot.
6. There is a 15 second trial for ignition,
which is enough time to light the pilot if
air is not present in the pilot line. If pilot
fails to light and you suspect air in the
line, close the main manual valve and
repeat lighting steps 1 thru 5.
7. Once the pilot lights, it should envelope
the ignition rod and ground electrode.
The pilot can be adjusted by removing
the pilot regulator cover and turning the
adjustment screw counterclockwise to
increase it or clockwise to decrease it.
8. Open the main manual and main firing
valves to allow gas to reach the main
burner. If the main burner fails to ignite,
turn the firing valve off and check to see
that the pilot is burning. If not, repeat
lighting procedure steps 1 thru 7.
TO TURN OFF APPLIANCE: Close main
manual valve and main firing valve and turn off
electric power to system.