Panasonic Aquarea WH-SDC16H6E5 - Page 170

170 Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Installation
6
Mono-bloc units
Connections of the water pipes – Mono-bloc units
1
2
34
5
3
Typical installation example with strainer
1 Supply water outlet (to space heating/cooling)
2 Return water inlet (from space heating/cooling)
3 Shut-off valve
4 Strainer
5 Flare nut
Permissible tightening torques of the water pipes – Mono-bloc units
Connection
– Supply water outlet (to space heating/cooling)
– Return water inlet (from space heating/cooling)
Mono-bloc systems Flare nut size Torque
Nm
Any type of mono-bloc unit RP 1¼“ 117.6
5. Only for heat pump models of the F Generation: Install an overow valve, if no hydraulic
disconnection (e.g. hydraulic shunt or bu󰀨er tank) has been provided. Take care to set the
overow valve not for the minimum ow rate, but for the nominal ow rate of the respective
heat pump.
This is only allowable for heat pump models of the F-Generation, because hydraulic
disconnection is necessary for all heat pump models of the G- and H-Generation.
6. If a heat pump with cooling function is used, you may have to install 2-way valves for
switching o󰀨 the heating circuits in cooling mode.
7. Install the 3-way switchover valve (to be provided on site) to switch over from heating mode
to hot water mode and reverse, if a Panasonic hot water tank is not used. The valve should
by default be opened in the direction of the heating circuit. Moreover, the valve should have
CE conformity and not exceed a peak load of 12 VA.
8. Connect inow (water out) and return (water in) of the indoor unit or mono-bloc unit to the
heat exchanger of the hot water tank. Take care not to mix up the connections.
9. Install a device for draining the system provided on site.
10. Insulate the pipelines and connections according to the locally valid European, national and
regional specications and guidelines.