Bosch Greentherm T9900 SE 160 Installation And Operating Instructions Manual page 53

▶ Touch the symbol
Display blinks 3 times and return to P7 menu.
6.8.1 Gas conversion from NG to LPG
WARNING:
Fatal accidents!
Before any service or testing in the appliance,
▶ Turn off the appliance.
▶ Disconnect the power supply cord.
▶ Shut off the gas supply.
WARNING:
The gas type conversion must only be carried out by a qualified
contractor.
▶ Turn Off the appliance.
▶ Remove the front cover from the appliance (section 3.3.2).
▶ Remove the four screws that retain the cover plate to the
gas manifold, see fig. 48 (plate in grey color).
Fig. 48 Gas manifold
▶ Remove metal plate and seal.
▶ The 3 restrictor plates should be pre-assembled onto their
tray, but if loose in box, follow installation instructions, as
shown in Figs. 49 and 50 [1].
▶ Insert the LP conversion plate in the appropriate location
shown in Figs. 49 and 50 [2].
DANGER:
▶ All three flow restrictors and seal must be assembled
according to the Fig. 49, to assure correct appliance
performance.
Greentherm T9900 SE/i – 6 720 813 635 (2019/03)
.
Fig. 49 199kBTU appliance gas conversion kit
Fig. 50 160kBTU appliance gas conversion kit
▶ Tighten the four screws.
▶ Open the gas supply valve.
▶ Turn On the appliance.
Operation instructions
53