24
Plumbing connection accessories
Water after-heating element - duct installation
The water heating element is for duct connection and it cannot be integrated into the ventilation unit.
Connect up the system, air it, and check for potential leaks. You can now start the unit. Following adequate flushing of the system,
check and clean the sediment trap.
IMPORTANT regarding Danfoss actuator type AME 140:
Reinstallation of the actuator must be done as follows:
1. Disconnect the power supply and remove the cover from the actuator
2. Release the gear by pressing and holding the button at the bottom of the casing, while turning the spindle fully (anticlockwise)
3. Install the actuator and connect up the power supply
4. Move DIP-switch no. 1 to ON, and then to OFF
5. It calibrates automatically for up to 6 minutes. (The diode flashes during calibration. After completion, it stays on)
6. Put the cover on the actuator
Dimensional drawing Ø125/Ø160/Ø200
:
WARNING
The water after-heating element must be installed by a certified plumber.
WARNING
If you install the water after-heating element outside the climate screen of the building, it must be protected against
frost.
Supply
flow
Return
flow
The water heating element is supplied as an accessory
consisting of:
1. Water heating element with frost thermostat B3
2. Actuator and regulation valve
Danfoss AME 140/24V 0-10V signal, 2-way valve
VZ2 Kv 0.4 (Nilan supply) the Kvs value must be
checked against the power supply.
Differential pressure: 0.1 - 0.6 bar.
With a flow temperature of 60°C and at maximum
heat output, the temperature is estimated to fall
with 20°C over the heating element
3. Bleed valve (not supplied by Nilan)
4. Sediment trap (not supplied by Nilan)
ATTENTION
The after-heating element must be activated in the Software under Basic settings.
1
3
2
4
83
310
440
Ø
238
22
32
31
300
1/2" RG
1/2" RG