To Fill The Water Circuit; To Fill The Domestic Hot Water Tank; To Insulate The Water Piping; Connecting The Electrical Wiring - Daikin Altherma EHVH08S18CB Installation Manual

1 Loosen and remove the 4 screws that fix the top panel.
2 Remove the top panel from the unit.
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.
4.4.3

To fill the water circuit

1 Connect the water supply hose to the fill valve.
2 Open the fill valve.
EHVH/X04~16S18CB + EHVH/X08~16S26CB
Daikin Altherma – Low temperature split
4P384971-1E – 2018.02
Cut out position
Left OR right
Backside
180 l
A
260 l
180°
3 Make sure that the automatic air purge valve is open (at least 2
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.
4.4.4

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.
4.4.5

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.
If the temperature is higher than 30°C and the humidity is higher
than RH 80%, the thickness of the insulation materials should be at
least 20 mm to prevent condensation on the surface of the
insulation.
4.5

Connecting the electrical wiring

DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.
4.5.1

About electrical compliance

c
See "4.5.4 To connect the backup heater power supply" on
page 9.
4.5.2 To connect the electrical wiring on the
indoor unit
1 To open the indoor unit, see
page 5 and "4.1.2 To open the switch box cover of the indoor
unit" on page 5.
2 Wiring should enter the unit from the top:
3 Routing of the wiring inside the unit should be as follows:
4 Installation
"4.1.1 To open the indoor unit" on
a b+c
Installation manual
7