Laars FT Series, Инструкция по установке и эксплуатации, Страница: 34 / 92

Page 34
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199
4.11
Gas Supply Pressure
Refer to the illustration.
The appliance and its individual shut-off valve must be disconnected from the gas supply piping system during any
pressure testing of the system at test pressures in excess of 1/2 psi (3.5 kPa).
The appliance must be isolated from the gas supply piping system by closing its individual manual shutoff valve
during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psi (3.5 kPa).
Loosen the pressure port screws before you check the gas inlet pressure.
Inlet Gas Pressure Port
Inlet Gas Pressure Port
FTCW
140
Offset Adjustment.
Do Not Adjust without using a combustion analyzer
to verify adjustment. Adjust ONLY when in MIN Fire
and when using a combustion analyzer.
See Section 4.12 for step by step details.
Offset Adjustment.
Do Not Adjust without using a combustion
analyzer to verify adjustment. Adjust
ONLY when in MIN Fire and when using a
combustion analyzer.
See Section 4.12 for step by step details.
Gas Outlet / Manifold Pressure Port
Gas Outlet / Manifold Pressure Port
CAUTION
The Maximum and Minimum
gas line pressures must be at
Max Fire operation.
LP Gas Natural Gas
Maximum Pressure
13.0" WC
Maximum Pressure
10.5" WC
Minimum Pressure
8.0" WC
Minimum Pressure
3.5" WC
Table 9.
Gas Pressures