Hoval UltraGas 1550, Техническая информация Инструкции по установке

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MAINTENANCE
6.10 Repair pressure monitoring device
!
WARNING
The settings must only be changed by a spe-
cialist trained by Hoval or by Hoval customer
service.
1. Check seat of the screw connections between pres-
sure switch B18 and the burner cover:
Position 1
Position 2
Position 3
Position 4
- Position 1 (double nipple on adapter plate):
Torque: 7 Nm
- Position 4 (double nipple on pressure switch B18):
Torque: 25 Nm
- Position 2 and 3 (Serto connecting nuts of connec-
ting cable on the double nipples):
Tightened by hand and then tightened by another
1/4 revolution with a spanner (hold position 1 or 4 in
place with a spanner when doing so).
2. Perform functional check of pressure monitoring device
and correct the setting of pressure switch B17 and B18.
(see chapter 5.7).
3. Check pressure monitoring device for leaks at the fol-
lowing points:
Pressure switch connection
Test port
Sealing plug
Sealing plug
Screw connection
Screw connection
Screw connection
Screw connection