Connection Of Electronically Regulated Circulating Pumps - Dimplex WPM Econ5S Instructions D'installation

WPM Econ5S
Fig. 4.1: Wall-mounted heat pump manager (heating)

4.2 Connection of electronically regulated circulating pumps

Electronically regulated circulating pumps have high starting
currents, which may shorten the service life of the heat pump
manager. For this reason, a coupling relay is installed or must be
installed between the output of the heat pump manager and the
electronically regulated circulating pump. This is not necessary if
the permissible operating current of 2 A and a maximum starting
current of 12 A are not exceeded in the electronically regulated
circulating pump or if express approval has been issued by the
pump manufacturer.
ATTENTION!
It is not permitted to connect more than one electronically regulated
circulating pump via a relay output.
EN-6
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F2
F3
F21
KM13 Coupling relay M13
KM16 Coupling relay M16
KM18 Coupling relay M18
N1
T1
X1
X3
NOTE
Detailed connection diagrams can be found in the Appendix, Chap. 2.
NOTE
A communication cable must be laid between Econ5 and the heat pump.
452115.66.29 FD 9504
Load fuse for plug-in terminals J12; J13 
and J21 5x20 / 4.0 AT
Load fuse for plug-in terminals J15 to J18 
and J22 5x20 / 4.0 AT
Fuse heat pump
Controller
Safety transformer 230 / 24 V AC
Terminal strip = 230 V
Terminal strip low voltage < 25 V AC