Vaillant MAG AT 11-0/1 GX H User Manual

6 Start-up
14 Installation and maintenance instructions atmoMAG 0020189893_03
1
▶ Clear any faults from the product by opening the hot wa-
ter valve again and switch the product on and off again
by pressing the main switch (1) a second time.
▶ If the fault clearance does not work or the product is re-
peatedly blocked by a safety device, check the product or
contact Vaillant Customer Service.
▶ In this case, shut down the product.
6.4 Checking the gas flow pressure
Applicability: Germany
OR Austria
OR Switzerland
1
▶ Close the gas isolator cock.
▶ Unscrew the sealing screw (1) from the measuring nipple
on the gas valve.
▶ Remove the seal.
▶ Connect a pressure gauge to the measuring nipple on
the gas valve.
▶ Open the gas isolator cock.
▶ Start up the product in accordance with the operating
instructions and draw off hot water.
▶ Measure the gas flow pressure.
Applicability: Germany, Austria, Switzerland
Gas family Permissible gas flow pres-
sure
Natural gas
G20 (DE, AT, CH)
G25 (DE)
1.7-2.5 kPa (17-25 mbar)
1.7-2.5 kPa (17-25 mbar)
Liquid gas
G31 (DE, AT, CH) 4.25-5.75 kPa (42.5-
57.5 mbar)
Conditions: Gas flow pressure not in the permissible range
Danger!
Risk of material damage and operating
faults caused by incorrect gas flow pres-
sure.
If the gas flow pressure lies outside the per-
missible range, this can cause operating
faults in and damage to the product.
▶ Do not make any adjustments to the
product.
▶ Check the gas installation.
▶ Do not start up the product.
▶ If you are unable to remedy the fault, contact the gas
supply company.
▶ Close the gas isolator cock.
▶ Remove the pressure gauge.
▶ Position the seal on the sealing screw.
▶ Screw the sealing screw (1) into the measuring nipple on
the gas valve again.
▶ Open the gas isolator cock.
▶ Check the measuring nipple for gas tightness.
6.5 Checking the heat input
▶ Check the heat input either by reading off the gas flow
values at the counter (volumetric method) or by checking
the burner pressure (burner working pressure test).

Vaillant MAG AT 11-0/1 GX H Specifications

General

Brand	Vaillant
Model	MAG AT 11-0/1 GX H
Category	Boiler
Language	English