Daikin Altherma EHYKOMB33AA - To set the space operation mode

7 Installation
Installation and operation manual
15
EHYKOMB33A
Daikin Altherma hybrid heat pump – gas boiler module
4P353067-1H – 2018.10
4 Connect the main cold water connection (Ø15mm).
DANGER: RISK OF BURNING
In case of high leaving water set points for space heating
(either a high fixed set point or a high weather-dependent
set point at low ambient temperatures), the heat exchanger
of the boiler can be heated up to temperatures higher than
60°C.
In case of a tapping demand, it is possible that a small
volume of water tapping (<0.3l) has a temperature higher
than 60°C.
To connect the water piping for domestic hot
water (applicable for Switzerland)
For Switzerland, domestic hot water should be made by a domestic
hot water tank. The domestic hot water tank must be installed with a
3-way valve to the space heating piping. Refer to the manual of the
domestic hot water tank for more details.
Flow resistance graph for appliance domestic hot
water circuit
Not applicable for Switzerland
0.2
0
1
3
5
7
9
11
13
15
0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
bar
l/min
The minimum flow for domestic hot water operation is 1.5l/min. The
minimum pressure is 0.1 bar. A low flow (<5 l/min) can reduce
comfort. Make sure to set the setpoint high enough.
To connect the water piping for space heating
Use the straight brass fitting connections (accessory of the heat
pump unit).
1 The space heating piping of the boiler will be connected to the
indoor unit.
2 Install the straight brass fitting connections so that they
perfectly match the connection of both modules.
3 Tighten the straight brass fitting connections.
b
a
a Outlet space heating
b Inlet space heating
NOTICE
Make sure that the straight brass fitting connections are
tightened thoroughly to prevent leakage. Maximum torque
is 30N∙m.
To fill the domestic water circuit of the gas boiler
1 Open the main tap to pressurize the hot water section.
2 Vent the exchanger and the pipe system by opening a hot water
tap.
3 Leave the tap open until all air has disappeared from the
system.
4 Check all connections for leaks including internal connections.
7.5 Connecting the electrical wiring
DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.
7.5.1 To connect the main power supply of the
gas boiler
1 Connect the power supply cable of the gas boiler to a fuse (a)
(L: X2-2 (BRN), N: X2-4 (BLU)).
2 Connect the earthing of the gas boiler to an earthing terminal.
Result: The gas boiler performs a test.
appears on the service
display. After the test, appears on the service display (wait mode).
The pressure in bar is shown on the main display.