Gas Pressure Testing - Yunca Gas EIB Operations, Maintenance & Warranty Information

GAS PRESSURE TESTING:

Fig 4 A manometer is required to check the gas supply and operating pressures.
3 Inlet Pressure tap point. Tightening torque 1.0 Nm.
4 Outlet pressure tap point Tightening torque 1.0 Nm.
5 Connection for pressure regulator / combustion chamber
Fig 6 Outlet pressure Adjustment
keeping nut C stationary, screw in Screw D to increase the pressure and screw it out to decrease the
pressure.
Carefully put back the modulator plastic cap.
16-02-05
To attach manometer, remove the hearth by removing the four
screws and gently lifting clear.
This will expose the control valve so manometer tubes can be
attached to the pressure taps as shown below.
Important: ensure pressure tap is tightened and checked for
leaks after testing.
Control Valve, Parts Fig 4 & 5
1 On-off solenoid valve EV1
2 On-Off solenoid Valve EV1
6 Servo-pressure regulator
7 Gas outlet pressure modulator
8 Pilot outlet
9 Main gas outlet
10 Side out let
11 Slow opening device
NOTE: Modulator pressure adjustments (Fig 6) are factory set. It is
not expected that adjustment will be required during installation.
The out let pressure is adjusted by removing the Modulator
Plastic Cap E.
WARNING: to ensure correct operation of the modulator the
Plastic Cap E must be returned to its original position.
MAXIMUM PRESSURE: The modulator is adjusted by
screwing in nut C to increase the outlet pressure and screw out to
decrease it.
MIMIMUM PRESSURE: Turn off the power supply and,
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compensation.
Operation Instructions for Electronic InBuilt
Fig 5
EIB 2002