Start-Up And Shut-Down Of Tank; Start-Up Operations; Operational Information From Contractor - Buderus Logalux PL750 Installation And Maintenance Instruction

5

Start-up and Shut-down of Tank

5 Start-up and Shut-down of Tank
5.1

Start-up Operations

A complete hydrostatic test should be performed prior to
placing the solar system in operation.
The pressure testing of the domestic hot wa-
ter system should only be conducted with
fresh water. The maximum test pressure shall
not exceed 145 psi (10 bar).
V Open the tapping at the highest point of the DHW sys-
tem to fill the DHW tank and the remove air out of the
system.
V To fill the solar combi-tank, open the shut-off valve loca-
tion in the cold water inlet connection EK.
V Prior to heating the tank from the secondary source,
make sure to fill boiler and piping network with water.
Open vacuum breaker and purge valves as required.
V Verify that the entire system, including all connections,
water lines and inspection ports are water tight.
5.1.1

Operational information from contractor

The contractor shall inform the end user of the proper
operation maintenance of the boiler and solar system.
Caution: Potential tank damage due to high
operating pressures.
V Make sure that the P & T valve piping re-
main free of obstructions at all times.
V Inform the system owner of the following:
– Make sure that the P & T valve piping remains free of
obstructions at all times.
– Periodically check the operation of the boiler relief
valve by opening it manually.
– Contact a heating or service contractor when the
manual reset high limit trips frequently on the boiler.
V For freezing climates and discontinued operation: drain
the solar tank completely, including the lower portions
of the tank.
V Inform the end user regarding annual maintenance pro-
cedures to ensure a lifetime of trouble free operation.
V Hand all installation documentation to the end user.
18
AW EZ
EL EK
Fig. 16 Installation diagram
1 Shut-off valve for cold water feed
2 Discharge piping for P & T valve
AW Hot water outlet connection
DHW recirc connection
EZ
Cold water inlet connection
EK
Logalux PL750/2 S - Changes may be made following technical improvements!
1
2
6 720 615 217-25.1RS
AW
EZ
1
EK