117
You have successfully completed the controls set up/controls commissioning
for the aroTHERM plus and sensoCOMFORT controller
The system should start in DHW mode in the first instance, this will be confirmed with a tap and pump symbol showing on
the VWZ AI MB2 or hydraulic module/uniTOWER.
It is important to ensure the flow rates and temperature differential between flow and return pipes are correct. A 5°C dif
-
ferential is ideal for optimum efficiency with a cold fill pressure of 1.5 – 2 bar.
Flow rates should be as per the below and set just under the maximum figures with the system fully open.
Model
3.5
5
7
10
12
Min flow rate
400
400
540
995
995
Max flow rate
860
860
1205
2065
2065
Flow rates can be viewed by using the VWZ AI MB2 or MEH 97/uniTOWER display.
Access by pressing the top 2 buttons at the same time (possibly twice as usually the first press will light the display up)
Use the + button to scroll down the menu to
installer level
, press top right-hand button to select
The access code is 17, use + button to adjust, press top right-hand button to select
Use the + button to scroll down to
Test menu
, press top right-hand button to select
Use the + button to scroll down to
Sensor/Actuator test
, press top right-hand button to select
Press + button 10 times to view
Building circuit: Flow rate
If the flow rate needs to be adjusted, then this can be accessed by following the below:
Access by pressing the top 2 buttons at the same time (possibly twice as usually the first press will light the display up)
Use the + button to scroll down the menu to
installer level
, press top right-hand button to select
The access code is 17, use + button to adjust, press top right-hand button to select
Use the + button to scroll down to
Configuration
, press top right-hand button to select
Press the + button 7 times to
Max. remaining feed head
, press top right-hand button to adjust
Note. You may need to adjust
max. remaining feed head
and recheck the flow rate in
test menu – sensor/actuator test –
building circuit flow rate
. Max remaining feed head parameter adjusts the pump in both heating and domestic hot water
modes.
3rd party controls connections explanation
This is a short summary of the options to connect 3rd party controls with the Vaillant controls and an explanation of
switching method and relevant parameters to check
Primary system
controller
Connection/
parameter
VWZ AI HP
interface
aroTHERM/3,
geoTHERM mini
and aroTHERM
plus
Hydraulic
station/
uniTOWER
aroTHERM plus
VR70
VR71
sensoCOMFORT
wired
3rd party
connection
evu
s21
S2 = zone 1, S3 = zone 2
S6 = zone 1, S7 = zone 2, S8
= zone 3
switching method
open on
demand
open on
demand
open on
demand
closed on
demand
open on
demand
closed on
demand
ESCO parameter
heating off
heating off
NA
NA
NA
NA
config ext input
parameter (only
applicable for
vr70/71
NA
NA
bridge,
deactiv
open,
deactiv
bridge,
deactiv
open, deactiv
sensoCOMFORT
RF
3rd party
connection
evu
evu
S2 = zone 1, S3 = zone 2
S6 = zone 1, S7 = zone 2, S8
= zone 3
switching method
closed on
demand
closed on
demand
open on
demand
closed on
demand
open on
demand
closed on
demand
ESCO parameter
heating off
heating off
NA
NA
NA
NA
Notes
if energy supplier/ESCO is not
adjusted to heat. off/heating off
then when 3rd party controls
are off this will stop DHW from
operating also as the default
setting is HP off i.e. heat pump off
not just heating off
when
selecting
bridge,
deactiv, S
terminals
without 3rd
party input
connected
will nedd to
be left open
when
selecting
bridge,
deactiv, S
terminals
without 3rd
party input
connected
will nedd to
be left open
when
selecting
bridge,
deactiv, S
terminals
without 3rd
party input
connected
will nedd to
be left open
when
selecting
bridge,
deactiv, S
terminals
without 3rd
party input
connected
will nedd to
be left open
Содержание UK aroTHERM plus
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