CONNECTIONS
01-UDBRG_V1-DIMU-00-EN
29
7.3
GAS CONNECTION
The choice of the gas piping depends on the diameter required for the type of gas, appliance and installation
and should be performed in conformity with current regulations.
The rating plate on the lower right side of the unit indicates the type of gas your unit is
equipped to burn. Do NOT connect to any other gas type.
Each unit is equipped with an internal pressure regulator .
The manifold pressure is show in table “
GAS MANIFOLD PRESSURE
”
An adequate gas supply is imperative
.
Undersized or low pressure lines will restrict the volume of gas required for satisfactory performance.
Fluctuations of the normal supply pressure more than 20% on natural gas, and 10% on propane gas, will
create problems and affect burner operating characteristics.
The gas inlet pressure is show in table “
GAS INLET PRESSURE
”
With all units operating simultaneously, the manifold pressure on all units should not show any appreciable
drop.
Purge the supply line to clean out any dust, dirt, or other foreign matter before connecting the line to the unit.
It is recommended that an individual manual shut off valve be installed in the gas supply line to the unit.
Use pipe joint compound which is suitable for use with LP gas on all threaded connections. Test pipe
connections thoroughly for gas leaks.
WARNING:
All connections must be checked for leaks, after the unit has been put in operation.
Use soapy water only for testing on all gases.
Never use an open flame to check for gas leaks.
NOTICE: If applicable, the vent line from the gas appliance pressure regulator
shall be installed to the outdoors in accordance with local codes or, in the
absence of local codes, with the National Fuel Gas Code, ANSI Z223.1/NFPA 54,
or the Natural Gas and Propane Installation Code CSA B149.1, as applicable.
The diameter of the connections is shown in "
TECNICAL DATA
"
The point of connection is shown in the "
PLANT CONNECTIONS
"
