Stulz EC Tower ECD 91 - Analog Input

155 © STULZ GmbH – all rights reserved EN/01.2019/G22
ec tower technical manual
4. Define which SRC outdoor unit is installed on site (see “Table 1: Setting the outdoor unit model with DIP
switches S15 to S18“ on page 155).
5. Set DIP switches S15 to S18 in line with the SRC outdoor unit installed on site (see “Table 1: Setting the
outdoor unit model with DIP switches S15 to S18“ on page 155).
The table below shows the settings for the outdoor unit model using DIP switches S15 to S18:
Outdoor unit model DIP switch
FDC outdoor unit Enabled SRC outdoor unit Enabled S15 S16 S17 S18
- - SRC 40 ZSXS

OFF OFF ON OFF
- - SRC 50 ZSXS

FDC 71 VNX

- - ON OFF ON OFF
FDC 140 VS

- -
ON ON ON OFF
FDC 140 VSX

- -
- - SRC 50 ZSS

OFF OFF OFF ON
FDC 140 VSA

- - OFF OFF ON ON
- - SRC 60 ZSXS

OFF ON ON ON
FDC 200 VSA

- -
ON ON ON ON
FDC 250 VSA

- -
Table 1: Setting the outdoor unit model with DIP switches S1-5 to S1-8
6.4 Analog input
NOTE
SW43 to ON on the outdoor unit board of the
FDC outdoor unit (see FDS series Technical Manual).

delivered. The input must remain permanently enabled.
X3S is only evaluated if a signal is present at digital input X2b-D4 (see “4.1
Analog input functions“ on page 149).

becoming distorted by electrical induction.