Lennox e-Baltic D BOX 55 Installation, Operating And Maintenance page 78

HEATING OPTION
GAS CONNECTION
The module cannot support supply pressures higher than 50 mbar (0.05 bar) otherwise it can break of the gas valve membranes.
For natural gas: always install a stabilizer on the main line.
For gas GPL (Butane-Propane) gas: a pressure reducer must be installed
A pressure gauge must always be installed upstream and downstream of the main gas supply line visible with a scale of [0 – 60]
mbar (0.06 bar) in order to verify any difference in upstream and downstream pressure and therefore the flow rate of the entire
network.
It is also possible, by closing the general valve and turning off the module, to check the tightness of the system and gas valves,
checking, after a short period, for any pressure drop on the pressure gauges.
Always connect the module with a ball valve and anti-vibration flexible gas joint.
Gas supply pressure adjustment: all modules are tested and calibrated in the factory for the pressures for which they are designed.
To be provided by the installer
e-BALTIC-IOM-2020.12-EN
POS.
1 Manual gas shut-off ball valve
2 -8-11 Gas pressure intake
3 Gas filter
4 -6 Pressure gauge
5 Gas pressure regulator with minimum and maximum
pressure blocking device (outlet pressure = 0.04 bar) -
For inlet pressures < 0.04 bar provide a stabilizer
7 Antivibration seal
9 Gas pressure regulator located on the appliance
solenoid valve
10 Safety solenoid valve
12 Burner
13 Ball valve with bleed
14 Maximum gas pressure switch with manual reset (40
mbar) - optional
15 Minimum gas pressure switch (20 mbar) - optional
Included in the module
DESCRIPTION
75