GZ 2 - GZ 4 / 100 - 1450 kW
Installation-Operation-Maintenance
7
Rating of the gas ramps
Depending on the available gas flow pressure, a correspond-
ingly rated gas compact ramps or gas ramp system will be in-
stalled in the factory.
If the minimum connection pressure is not achieved under rated
heat load, a gas ramp system will have to be used with a larger
rated width; the gas pressure must be increased at the utility
company's gas transfer point, or the cross section of the supply
line between the gas transfer point and the gas ramp system
must be enlarged.
Before the gas fan burner starts up for the first time,
vent the gas pipe and then check the gas ramps for
leaks.
Gas compact ramp Rp 1“ and Rp 1¼“
Burner and gas ramps taken from the table on page 9 form a
complete unit , which has been subject to model certification.
The conventional arrangement of the gas ramps is designed as
an operational compact unit.
•
Dirt pan with sieve and filter mat
•
Pressure controller with admission pressure compensation
and zero closing
•
Pressure detector, setting range 2.5 - 50 mbar, blocked when
liquefied gas is used
•
Safety solenoid, opens and shuts quickly
•
Two-stage solenoid, opens slowly, shuts quickly, adjustable
starting volume, stage 1 and 2
•
Mounting flanges with measurement nipple
•
Electrical connection with plug
Supply-pressure up to max. 360 mbar
{Comply with the Technical Rules for Gas Installations (DVGW-
TRGI) }
Fig. 5:
