26
CTC EcoPart 400
General information
ON
1 2
Connecting the CTC Basic Display (accessory)
Connecting the CTC Basic Display
(accessory). DIP switch 1 must be
set to the ON position to activate
heat pump control with the CTC
Basic Display.
ON
ON
1 2
ON
1 2
ON
1 2
ON
1 2
400V 3-fes
230V 1-fes
7. Communication connections
B
A
G
Sc
Shielding
Green
White
Brown
Installed at the factory
When connecting the CTC EcoPart 400 to products with different control
systems, accessories are sometimes needed to control the products. The
various alternatives available are described in this section.
The communication cable used is an LiYCY (TP) which is 4-conductor
shielded cable, where the communication-bearing conductors are of twisted
pair type.
Use of any other cable will mean that the conductor colours may not match,
necessitating a check that the colours of the conductors from the controlling
unit are connected to the same colours in the heat pump. The product may
also be more sensitive to faults if the wrong cable is used.
7.1 CTC Basic Display (accessory)
Given that the CTC EcoPart 400 does not have its own controller, the CTC
Basic Display accessory is required.
•
When connecting more than one heat pump to a CTC EcoLogic Pro
or CTC EcoZenith i550 Pro, the CTC Basic Display accessory must be
used to address the various heat pumps A1, A2, A3, etc.
•
When operating based on an existing boiler or tank, the CTC EcoPart
400 follows a fixed return temperature, so-called fixed condensing.
The CTC Basic Display is then used to set the heat pump’s return
temperature.
For connection and control, see the manual for the CTC Basic Display.
