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7 Installation
4×
3 In case of a unit with a tank capacity of 180 l, remove the
expansion vessel.
4 Remove the top insulation.
5 Cut out part (c) from the top insulation.
Tank capacity
180 l
260 l
6 Connect the recirculation piping to the recirculation connection
(b) and route the piping through the hole at the backside of the
unit (a).
A
a
b
a
Piping intake hole
b
Recirculation connection
c
Cut-out location
7 Reattach the top insulation, expansion vessel (in case of a unit
with a tank capacity of 180 l), and casing.
7.8.5
To connect the pressure relief valve to the
drain
The blow out of the pressure relief valve is coming out of the
backside of the unit.
Installer reference guide
38
Cut out position
Left OR right
Backside
180 l
A
260 l
180°
a
b
a
Pressure relief blow-out
b
Drain outlet (only for EHVX)
The blow out should be connected to an appropriate drain according
to the applicable legislation. It is recommended to use a tundish.
7.8.6
To fill the water circuit
1 Connect the water supply hose to the fill valve.
2 Open the fill valve.
3 Make sure that the automatic air purge valve is open (at least 2
c
turns).
4 Fill the circuit with water until the manometer indicates a
pressure of ±2.0 bar.
5 Purge as much air as possible from the water circuit.
6 Close the fill valve.
7 Disconnect the water supply hose from the fill valve.
NOTICE
The water pressure indicated on the manometer will vary
depending on the water temperature (higher pressure at
higher water temperature).
However, at all times water pressure shall remain above
1 bar to avoid air entering the circuit.
7.8.7
To fill the domestic hot water tank
1 Open every hot water tap in turn to purge air from the system
pipe work.
2 Open the cold water supply valve.
3 Close all water taps after all air is purged.
4 Check for water leaks.
5 Manually operate the field-installed pressure relief valve to
ensure a free water flow through the discharge pipe.
7.8.8
To insulate the water piping
The piping in the complete water circuit MUST be insulated to
prevent condensation during cooling operation and reduction of the
heating and cooling capacity.
ERHQ+ERLQ011~016 + EHVH/X11+16S18+26CB
Daikin Altherma – Low temperature split
4P384975-1C – 2018.02
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