Panasonic Aquarea WH-SDC09H3E5-1 - 5.2 Installation criteria; 5.2.1 Acoustics

166 Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Installation
167
Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Installation
6.7.2 Connecting the condensation and water outows
On site, a hose must be connected to the condensation drain of the indoor, outdoor and com-
pact devices as well as to the water drain of the safety valve. For connection to the conden-
sation drain, an outlet bend and a seal are provided for each device. The outow hoses and
pipelines must be provided on site.
!
IMPORTANT
When installing the outow hoses, in addition to the warning notices applicable for the entire
heating circuit, pay attention also to the following notices:
● Use commercially available outow hoses with a suitable diameter.
Device Hose internal diameter
Condensation outlet including outlet
bend (mm)
Drain of the safety valve
(Inches)
Combination hydro-module
H-Generation
17 R ½
Hydro-module F-Generation 17 k. A.
Hydro-module H-Generation 17 3/8
Outdoor unit 17 k. A.
Compact device 15 k. A.
● Install the outow hoses with a constant slope and in such a way that the water exit
cannot be clogged.
● Install the outow hoses in a frost-free environment.
This is particularly important in the case of outdoor and compact devices, because
if the periods in outside temperatures below 0 °C are long, ground frost can cause
the condensate to form ice. The result can be that the condensate cannot run off
and this will cause malfunctioning in the heat pump operation.
For safe drainage of condensation water even at outside temperatures below 0 °C,
a drain pipe is recommended, reaching into the frost-free area of the underground.
● Do not conduct the outow hoses into a sewage or cleaning connection from which
ammoniac, sulphurous gases or such others can rise.
Allowable tightening torques of the water pipelines – Compact devices
Model Connection
1
Size of the cap nut Torque
Nm
LT
WH-MDC05H3E5
1-Waterinow
2 - Water return
Rp 1¼“ 117.6WH-MDC07H3E5
WH-MDC09H3E5
T-CAP
WH-MXC09H3E5
1-Waterinow
2 - Water return
Rp 1¼“ 117.6
WH-MXC12H6E5
WH-MXC09H3E8
WH-MXC12H9E8
WH-MXC16H9E8
HT
WH-MHF09G3E5
1-Waterinow
2 - Water return
Rp 1¼“ 117.6
WH-MHF12G6E5
WH-MHF09G3E8
WH-MHF12G9E8
1 Cfr. → Connections of the water pipelines - Compact devices, p. 165
5. Only for heat pump models of the F-Generation: Install an overow valve, if no hydraulic
disconnection (e.g. hydraulic shunt or buffer 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 respec-
tive heat pump.
This is only allowable for heat pump models of the F-Generation, because hydraulic dis-
connection 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 off 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 compact device 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.
Example of Germany: Thermal insulation of pipelines and ttings according to Energy
Saving Regulations (EnEV 2014)
Typeoflines/ttings Minimum thickness of the insulation layer, relating to a
thermal conductivity of 0.035 W/(m•K)
Indoor units Compact devices
Internal diameter up to 22 mm 20 mm 40 mm
Internal diameter more than 22 mm up to 35 mm 30 mm 60 mm
Internal diameter more than 35 mm up to 100 mm 1 x internal diameter 2 x internal diameter