4
Start up instructions
Logano G234X – 6 720 805 917 (2012/12)8
Fig. 7 Installing the burner
[1] Retaining screw on the gas feed line
[2] Gas supply line
[3] Ignition cable
[4] Connection lines to the flame baffle
[5] Roll-out switch
[6] Pilot gas line
[7] Connection cables to the gas valve
[8] Gas valve
▶ Enter the required information on the conversion label.
▶ Attach conversion label on the outside of the boiler jacket as close as
possible to the nameplate.
3.4 Carrying out leak test
▶ Open manual gas shut-off in the gas line.
▶ Using a leak detecting spray, check the gas supply line to the gas valve
for leaks.
If any leaks are found:
▶ Close main gas shut-off.
▶ Seal leaks.
▶ Using a leak detecting spray, check the gas supply line to the gas valve
for leaks again.
If no further leaks are found:
▶ Close main gas shut-off.
▶ To measure the gas supply pressure, remove the screw plug from the
orifice pressure test point ( Fig. 8, [2], page 8) on the gas vale.
▶Pressure test port.
▶Connect a pressure gauge.
▶ To measure the orifice pressure, remove the screw plug for the orifice
pressure test point [3] on the gas valve.
Fig. 8 Gas valve
[1] ON/OFF knob (in ON position)
[2] Screw plug for gas supply pressure test port
[3] Screw plug for orifice pressure test port
▶ Pressure test port.
▶ Connect a pressure gauge.
▶ Open main gas shut-off.
▶ Measure the boiler's gas supply pressure.
▶ Follow the start-up instructions ( Chapter 4).
4 Start up instructions
4.1 Start-up instructions
WARNING: Risk of system damage due to short-circuits!
▶ Cover any hazardous locations prior to locating the
leaks.
▶ Do not spray leak detector onto conduits, plugs or
electrical connection cables or allow it to drip onto
them.
The supply pressure for natural gas must be between 7"
and 10.5" W.C. (17.4 to 26.2 mbar) and between 11"
and 13" W.C. for propane gas (27.4 to 32.4 mbar).
If the supply pressure for natural gas is not within this
range:
▶ Contact the service department or gas supplier.
DANGER: Risk of fatal injury due to not observing the
start-up instructions and resulting incorrect operation.
▶ If these instructions are not followed exactly, a fire or
explosion may be caused. This can cause significant
property damage or risk to life and limb.
▶ Observe the start-up instructions.
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