Danfoss Akva Lux II TDv, Руководство по монтажу и установке, Страница: 15 / 28

15 15 Danfoss District Energy 145X2085 / AQ428255318526en-010101 DKDHR
Instructions Akva Lux II TDv
It is extremely important that the flow temperature to the radiators
- taking comfort requirements into account - is as low as possible.
(The temperature can be read on the thermometer in HE return).
The room temperature is adjusted via the thermostat heads on the
radiators.
Zone valve RA-C / thermal actuator TWA-Q
The Akva Lux II TDv is equipped with zone valve RA-C, which enables
connection to an electronic programmable room thermostat.
Please note that a TWA-Q thermal actuator must be mounted on
the zone valve prior to connection to an electronic programmable
room thermostat.
The TWA-Q thermal actuator of the zone valve is switched on by an
external contact from the room thermostat, and starts to open or
close the valve. The actuating movement is achieved by means of
an electrically heated expansion element. When the heating current
isswitched off, the actuator shuts or opens the valve.
The actuator is equipped with a visual position actuator to show
the open or closed position of the valve.
Electronic programmable room thermostat (option)
If the substation is connected to a room thermostat the temperature
is controlled by the room thermostat and radiator thermostats.
Please note that the room thermostat keeps the temperature at a
constant level in the whole apartment according to the set room
parameters.
Consult additional maintenance instructions for room thermostat
for further information. It is recommended to avoid fully opened
thermostats on some radiators and fully shut-off on others.
Higher temperature at the top and lower temperature at the bottom
partof radiators means that the system operation is correct.
To keep correct temperature and friendly microclimate for human
beings in the correct temperature and friendly microclimate for hu-
man beings in the apartment, it is recommended to ensure regular
airing in rooms.
Thermal Actuator TWA-Q
TWA-A
For Danfoss RA valves
TWA-V
For Danfoss RAV/VMT valves
TWA-L
For Danfoss RAVL valves
TWA-K
For Heimeier/MNG/Oventrop
valves with M30 × 1.5 connection,
generally as per attached drawing.
Other valves must be verified
individually to ensure correct
valve closing measurement and
valve top geometry.
TWA-D
For Danfoss RTD valves
INSTRUCTIONS
TWA NO
*) 24 V Class II transformer (SELV)
**) 230 V max. 3 A pre-fuse
VI.SB.H3.02 12-2005
Produced by Danfoss Industri Service 05.09 JJ-Bi.DS
10. ADJUSTMENT AND COMMISSIONING
Note: Before installing the
electronic room thermo-
stat, a thermal actuator
for ON/OFF control of the
heating system must be
installed on the zone valve.