10
742.114 | 14.50
EN
2. Carefully push the flat-blade screwdriver to the left
. Lever the spring clamp
to
the right until the plastic link
is free.
3. Pull out the plastic link upwards by hand
.
4. Remove the left plastic link accordingly.
Fig. 5: Removing the right plastic link
4.4
Terminal pin assignments
For each solar energy system that can be selected at the controller, the external compo-
nents (pumps, valves, temperature sensors) must be connected to particular terminals.
The following table provides information on
• the graphic and number of the solar energy system on the controller display (the
graphic is only intended to provide an overview and is not a technical drawing) and
• the terminal pin assignments of the connected components.
Display
Legend
Terminal layout
No system
Note
No system
is used when only the functions are used. When
No
system
is selected, then all inputs and outputs are freely available
for use by the functions. More information on this is provided in
Section 10, p. 28.
1 storage tank, 1 collector array
T1
T2
R1
T1
: collector array sensor
T2
: lower storage tank sensor
R1
: solar circuit pump
1
,
2
,
R1
,
N
,
PE
(
0–10
R1
,
1)
)
Summary of Contents for TR A502 TT
Page 55: ...55 742 114 14 50 EN 18 Notes...
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