Start-Up Instructions - Buderus Logano G234X Installation And Service Instructions Manual

6
Placing the heating system in operation
Carrying out leak test
5. Open the gas shut-off valve.
NOTICE: 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.
6. Check the gas supply line to the gas valve for leaks with soap solution.
If no leaks are found, continue with step 8.
7. If leaks are detected, shut off the gas shut-off valve, seal the leaks, and
repeat step 6.
8. Close the gas shut-off valve. Remove the screw plug for the gas supply
port [2] on the gas valve in order to measure the gas supply pressure.
Install pressure measuring nipple and attach a pressure gauge.
9. Remove the screw plug for the gas supply port [3] on the gas valve in
order to measure the nozzle pressure. Install pressure measuring
nipple and attach a pressure gauge.
Fig. 19 Gas valve
[1] ON/OFF button (at ON position)
[2] Screw plug for gas connection pressure test port
[3] Screw plug for nozzle pressure test port
10. Open gas shut-off and measure the supply pressure of the boiler.
The connection pressure for natural gas must be between 7 and 10.5
inches W.C. (17.4 to 26.2 mbar) and between 11 and 13 inches W.C.
for propane gas (27.4 to 32.4 mbar). If the connection pressure is not
in this range with natural gas, contact your customer service
technician or gas utility company. Close the gas shut-off valve.
11. Always follow the start-up instructions on the next page.
18
6.3

Start-up instructions

For your safety, read before lighting.
DANGER: Risk of fatal injury due to not observing the
start-up instructions and resulting incorrect operation!
▶ If these instructions are not followed, a fire or
explosion may result.
DANGER: Risk of explosion!
If you smell gas there is a danger of explosio n.
▶ Close the gas shut-off valve.
▶ Open windows and doors.
▶ Do not operate any electrical switches or equipment
such as telephones, power plugs and doorbells.
▶ Extinguish all open flames. Do not smoke. Do not use
lighters.
▶ Warn all occupants of the building, but do not ring
doorbells.
▶ If you can actually hear gas escaping, leave the
building immediately. Prevent others from entering
and notify the police and fire department from
outside the building.
▶ From outside the building, call the gas utility
company and approved heating contractor.
WARNING: Risk of system damage!
This unit is fitted with an ignition module that
automatically starts the pilot burner.
▶ Do not attempt to ignite it manually.
WARNING: Risk of system damage!
This test must also be conducted at floor level, because
some types of gas are heavier than air and may
accumulate at floor level.
▶ Check for an odor of gas around the heating system.
WARNING: Risk of system damage!
Any attempt to use force or to repair the valve may cause
a fire or explosion.
▶ Switch on the ON/OFF switch on the gas valve by
hand only.
▶ Never use a tool as assistance.
▶ If you cannot actuate the ON/OFF switch on the gas
valve by hand, do not attempt to repair it.
▶ Contact a trained and certified installer.
WARNING: Risk of system damage!
▶ Do not operate the appliance if any part is under
water.
▶ Contact a trained and certified installer immediately.
Logano G234X – 6 720 804 886 (2012/08)