Hot water system
81
8.1.
Installation information for immersion pump systems
The Dual Top application with an immersion pump system requires a
“Dual Top Diving Pump” version and two additional ventilation hoses:
• One ventilation hose for the cold water line so that no water is sucked
in from the vehicle water tank (fresh water tank) while draining the
boiler
• One ventilation hose for the Dual Top heater
Connect the ventilation hose (1) to the cold water line (2) and mount at a
steep uphill slope to the check valve (8).
Position the hose (1) so that excess water flows unhindered out of the ve-
hicle onto the ground.
IMPORTANT
– The connection for the ventilation hose (1) and the check valve (8) must
lie ABOVE the vehicle water tank (7)!
– No drain traps!
Connect the ventilation hose (4) to the hose which runs through the hous-
ing cover with inlet interfaces (11) of the Dual Top (5) and mount with a
steep uphill slope to the check valve (3).
Position the hose (4) so that excess water flows unhindered out of the ve-
hicle onto the ground.
IMPORTANT
– The ventilation hose (4) and the check valve (3) must lie ABOVE the ve-
hicle water tank (7)!
– No drain traps!
– The ventilation hose (4) must be insulated outside the passenger com-
partment to avoid frost!
Fig. 19: Dual Top application with an immersion pump system
2
1
4
6
7
5
8
3
1
Ventilation hose
2
Cold water line
3
Check valve
4
Dual Top ventilation hose
5
“Dual Top Diving Pump”
heater
6
Immersion pump
7
Vehicle’s water tank
8
Check valve
