Start-up and shutdown
7
13
We reserve the right to make any changes due to technical modifications.
Installation and maintenance instructions Logalux ST400/3, 500/3, 750/3 and 1000/3 "US" • Issue 07/2005
7
Start-up and shutdown
7.1
Starting the DHW tank
Before placing the DHW tank into use, check it for
soundness to avoid leaks occurring during operation.
z
Open the highest faucet to vent the DHW tank.
z
Open the shut-off valve for the cold water inlet EK
(Fig. 14,
Item 1
) to fill the DHW tank.
z
Before heating up check whether the boiler, DHW
tank and pipework are filled with water. Open the
highest faucet for this.
z
Check all connections, pipework and the access port
for leaks.
7.1.1 Operating tips
Inform the user that:
–
The local heating contractor should be notified if the
high limit safety trips on the boiler frequently
responds.
–
The pressure and temperature valve function should
be checked annualy by manually opening it.
–
The P & T valve blow-off line (Fig. 14,
Item 2
) must
always be kept open and piped full port to a nearby
floor drain.
Fig. 14
Installation diagram (general layout)
Item 1:
Shut-off valve for cold water inlet
Item 2:
Blow-off line of the P & T valve
AW:
Domestic hot water outlet
EZ:
DHW recirculation inlet
EK:
Cold water inlet
2
1
USER NOTE
z
Carry out the leak test exclusively with
potable water. The on-site test
pressure on the DHW side must not be
higher than 10 bar (145 psi).
CAUTION
TANK DAMAGE
The DHW tank may be destroyed by
unacceptably high pressure if the safety
valve is closed.
z
Always keep the blow-off line of the
P & T valve (Fig. 14,
Item 2
) open and
unobstructed and piped to nearby floor
drain .
USER NOTE
For operating information (e.g. setting the
DHW temperature) check the control panel
operating instructions.