ECR International Dunkirk DCB-100, Инструкция по установке, эксплуатации и обслуживанию

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10 - OPERATING INSTRUCTIONS
WARNING
If you do not follow these instructions exactly,
a fire or explosion may result causing property
damage, personal injury or loss of life.
• This appliance is equipped with an ignition device
which automatically lights burner. Do NOT try to
light this burner by hand.
• Before operating smell all around appliance area for
gas. Be sure to smell next to floor because some
gas is heavier than air and will settle to the floor.
• Use only your hand to turn the gas shutoff
valve . Never use tools. If valve will not turn by
hand, do not try to repair it, call a qualified service
technician. Force or attempted repair may result in
fire or explosion.
• Do not use this appliance if any part has been
under water. Immediately call a qualified service
technician to inspect appliance and to replace any
part of control system and any gas control which
has been under water.
!
FOR YOUR SAFETY READ BEFORE OPERATING
CAUTION
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use
any phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
• If you cannot reach your gas supplier, call the fire
department.
! !
10.1 Testing For Gas Leaks And Purging The Gas
Supply
• With boiler gas service valve closed (spindle flats at right
angles to valve). Pressure test gas supply and inlet pipe
work connection to boiler gas service valve for soundness.
• Loosen screw of pressure inlet gas test port on gas valve.
See figure 9-3 Gas Valve. Verify gas supply is ON. Open
boiler service valve to purge.
• Retighten test port screw and test for gas leaks. Close
boiler gas service valve.
10.2 Boiler Operation
Domestic hot water supply always takes priority over central
heating.
Demand for hot water required during central heating period,
boiler automatically switches to hot water mode until demand
is satisfied i.e. storage water is to required temperature.
This interruption in central heating is only when demand for
hot water is present and should not be noticed by the User.
10.3 Central Heating Mode
1.
With demand for heating, pump circulates water through
the primary circuit.
2.
After a 3 minute anti-short cycling delay the combustion
fan comes on at ignition speed, closing the air pressure
switch if applicable model, allowing power to spark
generator and gas valve, creating ignition in the
combustion chamber.
3.
Flame sensor acknowledges presence of flame in
combustion chamber sending a signal to the control board.
4.
After initial stabilization period the control board monitors
supply and return temperatures and modulates fan speed
and gas rate accordingly.
5.
Once boiler satisfies CH call for heat, the unit will
shutdown and enter 3 minute anti-cycling mode. The
boiler pump will operate for 3 minutes to dissipate any
residual heat.
If there is a subsequent CH call for heat, boiler will wait 3
minutes to operate.
240013501 REV A [03/15/2022]