Unigas HRX2060, Manual Of Installation - Use - Maintenance

Page: 36 / 116

PART III: OPERATION
36
MultiBloc MBE Regulation VD-R whith PS
Pressure taps
MultiBloc MBE
Gas valveversion with SKP2 (built-in pressure stabilizer)
To increase or decrease gas pressure, and therefore gas flow rate, remove the cap T and use
a screwdriver to adjust the regulating screw VR . Turn clockwise to increase the flow rate,
counterclockwise to reduce it.
Increasing pressure
Decreasing pressure
Fig. 5
Setting scale is „Not“ linear! Various sensors available.
Output pressure according to sensor‘s measuring
range.
Adjust the outlet pressure to the value specified by the
burner or equipment manufacturer!
While making outlet pressure adjustments, do not
exceed a value that creates a hazardous condition to the
burner!
Adjusting output pressure for positive pressure
systems (requires PS-10/40 or PS-50/200):
Outlet
pressure
MIN 10% 25% 50% 75% MAX
PS-10/40
4 mbar
0,4 kPa
2 "w.c.
10 mbar
1,0 kPa
4 "w.c.
25 mbar
2,5 kPa
10 "w.c.
50 mbar
5,0 kPa
20 "w.c.
75 mbar
7,5 kPa
30 "w.c.
100 mbar
10,0 kPa
40 "w.c.
PS-50/200
20 mbar
2,0 kPa
8 "w.c.
50 mbar
5,0 kPa
20 "w.c.
125 mbar
12,5 kPa
50 "w.c.
250 mbar
25,0 kPa
100 "w.c.
375 mbar
37,5 kPa
150 "w.c.
500 mbar
50,0 kPa
200 "w.c.
ATTENTION: To set the outlet pressure of the VD-R regulator, act on the adjustment ring nut (Fig. 10)
The position of the indicator in the dial indicates the value of the outlet pressure calculated as a percentage of the
full scale of the PS sensor (Fig. 11)
Fig. 6
10%
25%
50%
75%
Max. Min.
1, 2, 3, 5
Sealing plug
4
For system accessories
Fig. 7
T
VR
+
-