Table of Contents
Advertisement
Overview of electrical connections
Danger
Incorrect wiring can lead to serious injury from
electrical current and result in appliance dam-
age.
■
Route extra low voltage (ELV) leads < 42 V
and
42 V/230 V~ cables separately.
>
Only strip the minimum of insulation from
■
cables as close as possible to the terminals
and bundle tightly to the corresponding termi-
nals.
■
Secure cables with cable ties.
aVG
%
&
jF
NTC
NTC
NTC
10 kΩ
20 kΩ
10 kΩ
Fig. 1
SDIO/SM1A electronics module
A
Cylinder temperature sensor NTC 10 k
%
ard delivery)
With plug
%
Collector temperature sensor NTC 20 k
&
(standard delivery)
Temperature sensor NTC 10 k
/
Temperature sensor NTC 10 k
aÖ
Transfer pump or 3-way diverter valve
sS
!
Please note
Electronic assemblies can be damaged by static
loads.
Before beginning work, touch an earthed object
such as a heating or water pipe to discharge any
static.
A
/
aÖ
[{]
sS
PWM
NTC
10 kΩ
(stand-
Ω
Ω
(if installed)
Ω
(if installed)
Ω
F1 T2A
sF
fÖ
?
?
?
M
1~
230 V∼
50 Hz
M
1~
Solar circuit pump
sF
Power supply
fÖ
PlusBus for connecting with HMU control unit,
jF
DIO electronics module or ADIO electronics
module
KM-BUS to Vitotronic boiler control unit
aVG
PWM Speed control, solar circuit pump (if circulation
pump with PWM control installed)
Note
Apply strain relief to on-site cables.
Seal any unnecessary apertures with cable grommets
(not cut open).
Installation sequence
7
Advertisement
Table of Contents
