Ecoflam MULTIFAM 500.1 PRE Manual Download Page 22

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STARTUP: CHECKING PROCEDURE

CHECKS BEFORE COMMISSIONING:

• That the burner is assembled in
accordance with the instructions given
here.
• Setting the combustion components.
• All electrical connections must be correct.
• Check the burner motor for correct
direction of rotation.
• The heat generator must be ready for
operation, and the operating regulations
for the heat generator must be observed.
• The heat generator and heating system
must be filled with water and the
circulating pumps must be in operation.
• The temperature regulator, pressure
regulator, low water detectors and any
other safety or limiting devices that might
be fitted must be connected and
operational.
• The exhaust gas duct must be
unobstructed and the secondary air
system, if available, must be operational.
• An adequate supply of fresh air must be
guaranteed.
• Make a test of the all gas-carrying
elements for absence of leaks.
• Check tank, lines and oil pump are filled
with oil and correct oil nozzle is fitted.
• With burner in starting position check that
air damper is in “CLOSED” position.
• Check that control box is unlocked and in
its original position.
• A standard-compliant measuring point
must be available, the exhaust gas duct up
to the measuring point must be free of
leaks to prevent anomalies in the
measurement results.

OIL STARTUP

Open all shut-off valves of oil supply
system.
• Set fuel selector switch to its “Oil”

position.
• Fill pump with oil.
• Mount pressure gauge in the feed line
and return line.
• Mount the pressure gauge for checking
the pump suction pressure.
• Make sure that the nozzle is size and
mounted correctly.

Bleeding of oil system

Shortly start the burner and check for
proper direction of rotation. Bleed the oil
line and oil pump.

CAUTION:

The hydraulic system has been

filled with oil by the manufacturer.
This may cause ignition trouble when
initially operating the system.
When starting the burner take care to
increase the oil pressure slowly to the
operating level.

GAS STARTUP
NOTE:

Adjust the gas unit according to the

fuel oil unit. Set the fuel selector switch to
its “Gas” position.
• Connect the measuring instruments for
the gas head pressure on the test
connection downstream of the gas damper
and the air pressure on the burner test
connection.
• Open the gas shut-off valve before the
gas-armatures and test the gas pressure
on the pressure gauge
• Set the “Manual-Automatic” selector
switch to “Manual”.

If the gas valves are tested for absence of
leaks, this should be continued until a
positive result is obtained. If a valve is
found to leak, the program will not step
forward to the control box.
The burner will start according to the
program flow of the control box.

Prior to the initial fuel feed start make
a functional test of the burner program
flow:

Oil system:

• Open all shut-off valves of the oil supply
system.
• The oil solenoid valve in the feed line
disconnect on the terminal strip (see
Circuit Diagram).
• Start burner and check program flow for
correct start-up sequence:

1. Fan starts.
2. Pre-ventilating damper.
3. Air pressure check.
4. Partial-load air damper.
5. Ignition.
6. Valves open (disconnected valve
remains closed).
7. Shut-off upon trouble after expiry of
safety period (see control box).

• Reconnect the valve.
• Unlock the control box.

Gas system:

• Shortly open the gas shut-off valve
before the gas train until pressure is
available and close again.
• Start burner and check program flow for
correct start-up sequence:
1. Fan.
2. Pre-ventilation damper.
3. Check air pressure.
4. Partial-load damper.
5. Ignition.
6. Valves open.
7. Shut-off upon trouble after expiry of
safety period (see control box) or shut-off
because of gas supply failure.
7. The burner will either stop as the gas
valves open (due to gas pressure
decrease) or lock out at the end of the
safety time.
• Unlock the control box.