Daikin EKHWS050B3VJU Installation Manual page 8

2 Installation position.
It is advised to connect the 3-way valve as close as possible to
the unit. It can be installed in accordance with one of the
following four configurations.
1
2
3
figure A
1
2
3
figure C
1 From indoor unit
2 To domestic hot water tank
3 To room heating
3 Unpack the 3-way valve body and 3-way valve motor.
Verify that following accessories are provided with the motor.
2
1
1 Sleeve
2 Valve motor cover
3 Screw
4 Scale
4 Install the 3-way valve body in the pipework.
• Make sure the shaft will be positioned in such a way that the
motor can be mounted and replaced.
• Put the sleeve on the valve and turn the valve to the middle
position of the scale plate.
Check that the valve is positioned as in the figure below. It shall
be blocking the outlet connection to the domestic hot water for
50% and the outlet connection to the room heating also for
50%.
Installation in accordance with
figure A and figure B
Installation manual
6
1
3
2
figure B
1
3
2
figure D
4
3
Installation in accordance with
figure C and figure D
NOTE If the valve is not positioned in this way before mount-
ing the motor, the valve will give way to both domestic
water and room heating during operation.
5 When installing in accordance with figure A or figure D, open the
valve motor cover by loosening the screw and change the
jumper so as to change the rotation direction of the valve.
By default the jumper is factory set to apply for installation in
accordance with figure B and figure C.
Installation in accordance with
figure A and figure D
Rotation direction of the valve
6 Push the motor on the motor sleeve.
Make sure not to rotate the sleeve during this action, so as to
maintain the valve position as set during step 4.
7
8 Put the scale on the valve as shown below.
Domestic hot
water tank Room heating
Installation in accordance with
figure B and figure C
9 Make sure to firmly fix the power supply cord onto the 3-way
valve body with a field supplied cable tie like in illustration below.
10 Perform the wiring in the unit in accordance with the following
figure:
8 9
3-way valve
L N
Refer also to the drawing on page 8.
11 Connect the water inlet and water outlet.
12 Connect the hot and cold water supply tubes.
Domestic hot water tank for air to water heat pump system
Installation in accordance with
figure B and figure C
DIR
2P
Y
N
L
Domestic hot
Room heating water tank
Installation in accordance with
figure A and figure D
10
Y
EKHWS050+080B3VJU
4PW56114-1