Panasonic Aquarea WH-SDC09H3E5-1 - Page 85

162 Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Installation
163
Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Installation
Combination Hydro-Modules
Connections of the water pipelines – Combination hydro-module H-Generation
cdef
a b
Combination hydro-module H generation -
Standard Version
Combination hydro-module H-Generation -
Version “B”
Standard version
a (not available)
b (not available)
c Water return
 d Waterinowheating
e Fresh water
 f Waterinowhotwater
Version “B”
a Water return (2nd heating circuit)
 b Waterinowheating(2ndheatingcircuit)
c Water return (1st heating circuit)
 b Waterinowheating(1stheatingcircuit)
e Fresh water
 f Waterinowhotwater
► Using a wrong tool, e.g. a pipe wrench, can deform or damage the connection. This
can cause leakages. Therefore, use a suitable adjustable spanner
► Too high a tightening torque can cause deformation and consequently leakages.
1
2
1 Adjustable spanner
2 Torque wrench
Therefore, only use a torque wrench to tighten and an adjustable spanner to counter it
(see the illustration above).
6.7.1 Connecting water pipelines to the indoor unit or compact
device
i
Note
Follow the planning documents to connect the water pipelines of the heating circuit or follow the
examples of application (→ 5.6 Examples of use, p. 126).
Carry out the following steps to connect water pipelines of the heating circuit to the indoor unit
(indoor unit or combination hydro-module) or the compact device:
1. Install the required pipelines, valves, dirt catchers and other components according to the
planning documents.
2. Connect the water circuit to the water entry and water exit nozzles of the indoor unit or
compact device.
3. Use suitable cap nuts to connect water return (water entry, marked “WATER IN”) and
water outlet (water exit, marked “WATER OUT”). Use a torque wrench to tighten and
apply the allowable tightening torque in each case (→ Allowable tightening torques of the
water pipelines - Combination hydro-module H-Generation, p. 164, → Allowable tight-
ening torques of the water pipelines - hydro-module H-Generation, p. 165, → Allowable
tightening torques of the water pipelines - Compact devices, p. 166).
4. Only for heat pump models of the F- and G-Generation: Install a dirt catcher (mesh
width at least 500 to 600 µm) provided on site before the water entry (water return) of the
indoor unit or compact device to protect the heat pump. It is advisable to install a shut-off
valve before and after the dirt catcher to facilitate later servicing work on the dirt catcher.
This does not apply to the hydro-module and combination hydro-module of the H-Genera-
tion, because a dirt catcher with two shut-off valves is integrated as standard with these.