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Start-up and shutdown
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.
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).
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.
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
2
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
TANK DAMAGE
The DHW tank may be destroyed by
unacceptably high pressure if the safety
CAUTION
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.
7
1
13
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