4 Installation
Installation manual
9
C08AA
Daikin hybrid for multi heat pump – heat pump module
4P471756-1C – 2017.10
a
b
a
Water inlet
b
Water outlet
3
In case of connection with the optional domestic hot water tank,
see the installation manual of the domestic hot water tank.
NOTICE
Install air purge valves at all local high points.
4.4.2
To fill the space heating circuit
Before filling the space heating circuit, the gas boiler MUST be
installed.
1
Flush the installation thoroughly to clean the circuit.
2
Connect the water supply hose to the drain point (field supply).
3
Power up the gas boiler to see the pressure indication on the
boiler display.
4
Make sure that the air purge valves of the gas boiler and the
heat pump module are open (at least 2 turns).
5
Fill the circuit with water until the boiler display indicates a
pressure of ±2 bar (with a minimum of 0.5 bar).
6
Purge air from the water circuit as much as possible.
7
Disconnect the water supply hose from the drain point.
NOTICE
▪ Air in the water circuit can cause malfunctioning. During
filling, it may not be possible to remove all the air from
the circuit. Remaining air will be removed through the
automatic air purge valves during the initial operating
hours of the system. Additional filling with water
afterwards may be required.
▪ To purge the system, use the special function as
described in the chapter
"6 Commissioning" on
page 20
. This function should be used to purge the
heat exchanger coil of the domestic hot water tank.
4.4.3
To fill the domestic hot water tank
For installation instructions, see the installation manual of the
domestic hot water tank.
4.4.4
To insulate the water piping
The piping in the complete water circuit MUST be insulated to
prevent reduction of the heating 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
To connect the electrical wiring on the
indoor unit
It is recommended to install all electrical wiring to the hydro box
before installing the boiler.
1
Wiring should enter the unit from the bottom.
2
Routing of the wiring inside the unit should be as follows:
b
a
c
a
b
c
INFORMATION
When installing field supply or option cables, foresee
sufficient cable length. This will make it possible to remove/
reposition the switch box and gain access to other
components during service.
Routing
Possible cables (depending on unit type and installed options)
a
▪ Interconnection cable between indoor and outdoor unit
▪ Heat pump convector (option)
▪ Room thermostat (option)
▪ 3-way valve (option in case of tank)
▪ Shut-off valve (field supply)
▪ Domestic hot water pump (field supply)
b
▪ Interconnection cable between indoor unit and gas boiler (see boiler manual for connection instructions)
