16
AWR-MTD2-XE
EN 11/2010
INSTALLER CONNECTIONS
I A
YV5 3-way valve for domestic hot water production
The 3-way valve installed outside of the unit deviates the
flow of hot water produced by the unit to the DHW storage
tank.
During domestic hot water production, the cooling/heating
demand is not satisfied.
Wire the three-way valve supplied as an accessory by Man-
ufacturer following the instructions shown in the figure.
The valve is also fitted with a limit switch. The limit switch
contact is either closed or open based on the position of the
valve.
Limit switch (red and green wires):
Auxiliary contact closed = Valve open
Auxiliary contact open = Valve closed
If not supplied by Manufacturer, the 3-way valve for domes-
tic hot water production should have the following character-
istics:
• Voltage 230V AC, 50/60 Hz
• Opening/closing time 10s.
• Delta P 500 kPa
• Fluid temperature 0°C to 90°C
Use three-way valves with pressure drop below 20 kPa.
For further details see the chapter “Operating characteris-
tics”.
If three-way valves with a travel time greater than 10 sec-
onds are used, modify the setting of parameter 0231
• Close the cover A1 and secure it with the screw A2
• Plug in the 4-pin connector, figure
(7)
• Replace the terminal, starting with the lower tabs, applying
a hinge movement. Make sure that the electrical wires are
inside to ensure correct fastening (click on).
• Dimensions of A5 room controller figure
(8)
.
6
8
8
28
143
Wall
7
8
9 12 13
YV5
Yellow/Green
Red
Blue
Green
Black
Brown
Auxiliary contact
INSTALLER CONNECTIONS
I A
43 44
6
7
230V / 400V
BT9
N
1
Description
Three-way valve
travel time for
domestic hot water
production
Menu
Mn02
Parameter
no.
0231
Default
12
Value to be set
Set the travel time
for valves not
supplied by the heat
pump manufacturer
UOM
sec.
Optional connection
KM2 System outlet electric heater
An electric heater installed at the outlet can be activated as
a supplementary heater for the system.
Solution 1
System with heat pump and electric heater with storage
tank.
Position probe BT9 in the storage tank.
Summary of Contents for AWR-MTD2-XE
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