9
Maintenance
9.4
Startup after maintenance
NOTICE: Risk of tank damage from a faulty gasket!
▶ To prevent the DHW tank from leaking, install a new
cleanout cover gasket upon completion of cleaning
and maintenance.
▶ Put the cleanout cover [4] back in place (top or side) together with the
new gasket [2].
▶ Thread hex bolts [5] into cleanout cover [4] "hand-tight".
▶ Then use a torque wrench to tighten the hex bolts to 18-22 lbf-ft
(25 - 30 Nm).
▶ Fill the DHW tank and restart the heating system.
▶ Check all connections and the inspection port for leaks.
▶ Replace the cleanout cover shroud.
▶ Reposition the PS top cover on the tank.
Fig. 22 Reassembling the inspection port
[1]
Inspection port
[2]
Handhole cover gasket
[3]
Magnesium anode
[4]
Handhole cover
[5]
Hex bolts
[6]
Cleanout cover shroud
16
6720 800 155-06.1ITL
SU54.5 | SU80.5 | SU100.5 – 6 720 819 292 (2017/11)