14 DKDHR
VI.HE.A1.02
Danfoss District Energy
Instructions for installation and use
Akva Lux II TDP-F
Safety valve
As optional equipment the substation can be equipped with a safety
valve set.
Please note that this is not part of the delivery and must be ordered
separately and mounted on site.
Always establish a blow-off pipe from the safety valve. The blow-off
pipe must be lead to a drain in accordance with applicable legislation.
Please note that installation of safe valve set is possible only for instal-
lations with 120 mm ball valves.
See separate installation guide for mounting of safety valve set.
The safety valve set includes two different pipes, as it is prepared for
mounting on flat stations with and without circulation set.
Illustration 1 to the right shows Akva Lux II TDP-F with safety valve
set only.
Illustration 2 to the right shows Akva Lux II TDP-F with circulation set
and safety valve set.
9.0 Installation instructions, recirculation connection
If the household piping system features domestic hot water
recirculation, the substation must be connected to the recirculation
system. The circulation set for recirculation connection is not standard
equipment. The set must be purchased as extra equipment.
We recommend establishing recirculation BEFORE mounting the
substation on the wall.
Connect the recirculation pipe from the fixed household piping to
the hexagon nipple at the bottom of the substation, - see photo to
your right .
Remember always to mount circulation pump and non-return
valve to the circulation pipe and to mount safety valve on the
DCW inlet.
The pump must be installed so that the pump is pumping
water towards the substation.
A safety valve must be mounted in the DCW inlet.
If a time-controlled pump is used, we recommend setting of the
circulation water temperature to approx. 35°C.
Please note that if the circulation pump (outside the substation) is
stopped for a protracted period, we recommend that the bypass
thermostat is shut off for the same period.
Please note that
four
circulation sets for recirculation connection are
available as optional equipment.
The four circulation sets and and control change possibilities from
bypass to DHW recirculation will be described thoroughly on pages
15 to 24.
Connection to the household recirculation pipe
1
2
