STIEBEL ELTRON HM Trend - Sensor Installation

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INSTALLATION
Power supply
10.4 Sensor installation
10.4.1 Return temperature measuring
 Connect an additional return sensor in combination with the
following heat pump types:
- HPA-O 3-8 CS Plus (only in combination with a buffer
cylinder)
- HPA-O 7-13 (C)(S) Premium (only in combination with a buff-
er cylinder)
- WPL 13 E/cool
- WPL 18 E/cool
- WPL 15-25 A(C)(S) (only in combination with a buffer
cylinder)
- WPL 07-17 ACS classic (only in combination with a buffer
cylinder)
- WPL 19-24 I, A (only in combination with a buffer cylinder)
Note
 For heat metering with the WPL 07-17 ACS classic/
HPA-O 3-8 CS Plus in conjunction with the HM(S)
(Trend) hydraulic module, observe the section “Heat
metering with the WPL 07-17 ACS classic / HPA-O 3-8
CS Plus”.
For systems without a buffer cylinder
 Fit the sensor in the heating circuit return as a contact sensor
and if necessary, downstream of any overflow valve installed.
For systems with a buffer cylinder
 Fit the sensor as a return temperature sensor in the buffer
cylinder.
Installation:
The electrical connection is made at terminal X1.4.
 When installing a sensor, observe the commissioning in-
structions for the heat pump manager (see chapter “Connect-
ing external components”).
10.4.2 Heat metering with the WPL 07-17 ACS classic / HPA-O
3-8 CS Plus
Note
 Install the following immersion sensor for the heat
pump, in addition to the sensor described in chapter
“Return temperature measuring”.
 Use the immersion sensor connected to terminal X61 for heat
metering.
D0000067540
 If required, extend the sensor lead. Use a cable with a mini-
mum diameter of 0.34mm².
D0000067541