Daikin ETBH16E9W Installer's Reference Manual page 93

EPRA14~18D + ETBH/X16E
Daikin Altherma 3 H HT W
4P644736-1D – 2023.10
Outdoor unit
1 Connect the shut-off valve (with integrated filter) to the outdoor unit water
inlet, using thread sealant.
a
b
a Water OUT (screw connection, male, 1")
b Water IN (screw connection, male, 1")
c Shut-off valve with integrated filter (delivered as accessory)(2× screw connection,
female, 1")
d Thread sealant
2 Connect the field piping to the shut-off valve.
3 Connect the field piping to the outdoor unit water outlet.
NOTICE
About the shut-off valve with integrated filter (delivered as accessory):
▪
The installation of the valve at the water inlet is mandatory.
▪
Mind the flow direction of the valve.
NOTICE
Install air purge valves at all local high points.
Indoor unit
To facilitate service and maintenance, 2 shut-off valves and 1 differential pressure
bypass valve are provided. Mount the shut-off valves on the water IN connection
(from the outdoor unit), and on the space heating water OUT connection. To
ensure the minimum flow rate (and prevent overpressure), install the differential
pressure bypass valve on the space heating water outlet.
1 Connect the O-rings and shut-off valves to the indoor unit water connections.
2 Connect the outdoor unit field piping on the water IN connection (a) of the
indoor unit.
3 Connect the space heating/cooling field piping on the space heating water
OUT connection (b) of the indoor unit.
8 Piping installation
|
b
c
2
1
d
Installer reference guide
93