Electrical Connections
18
Other Connection Facilities
External heat demand / External heat disable
When the “external heat demand” contact is activated, the mixing valve is opened.
When the “external heat disable” contact is activated, the mixing valve is closed.
1.
In the plug-in connector
provided, connect a potential-
free contact for
- external heat demand
or
external changeover of the
heating program (see Service
Instructions for the coding
required) at terminals “3” and “2”
- external heat disable at terminals
“1” and “2.”
2.
Break open the cable bushing; install
strain relief clamp.
3.
Insert connector
in socket “X 11” in
the terminal compartment (see
page 10); install strain relief clamp.
External heat demand
or
external changeover of the heating program
External heat disable
Mixing valve motor
only with Dekamatik-HK 1 for wall mounting
H
Connect the 4-wire cable from the
mixing valve motor to terminals “X3,”
“X4.1,” “X4.2” and “X4.3” in the wall
mounting fixture of the Dekamatik-HK 1
as shown in Fig. 18.
Mixing valve open
Mixing valve closed
The Dekamatik-HK 1 incorporates a
120 V mixing valve output.
5167
137
Fig. 17
Connecting external heat demand / external heat disable
Fig. 18
Connecting the mixing valve motor
Wall mounting fixture
IMPORTANT
Summary of Contents for Dekamatik-HK1
Page 23: ...Appendix 23 Notes 5167 137...
