Daikin ETVH16SU23EA6V [96/296] Piping installation

8 | Piping installation

Installer reference guide

EPRA14~18DAV3+W1 + ETVH16SU18+23EA6V

Daikin Altherma 3 H HT F

4P644738-1 – 2021.02

WARNING

▪ Do not install any valves between the domestic hot water tank and relief valves/

expansion vessel.

▪ Do not install shut-off valves between the expansion relief valve and the domestic

hot water tank.

NOTICE

▪ All pipework and fittings must be flushed free of flux and debris prior to installing

the domestic hot water tank kit. Failure to do this may cause irreparable damage

to the tank kit controls. Flush the system by opening the hot water tap.

▪ The tundish pipework must be a 22mm metal pipe with a minimal vertical length

of 300 mm below the tundish before any elbows or bends in the pipework. All

pipework must have a continuous fall of 1 in 200 thereafter. Maximum permitted

(equivalent) length of 22mm pipework is 9m. Each bend or elbow is equivalent

to 0.8m of pipework.

8.2.5 To connect the recirculation piping

Prerequisite: Only required if you need recirculation in your system.

1 Remove the top panel from the unit, see "7.2.5 To open the indoor

unit"[470].

2 Cut out the rubber grommet on top of the unit, and remove the stop. The

recirculation connector is placed below the hole.

3 Route the recirculation piping through the grommet and connect it to the

recirculation connector.

4 Reattach the top panel.

8.2.6 To fill the water circuit

To fill the water circuit, use a field supply filling kit. Make sure you comply with the

applicable legislation.

NOTICE

Make sure both air purge valves (one on the magnetic filter and one on the backup

heater) are open.

All automatic air purge valves MUST remain open after commissioning.