Gram External Connections - Viessmann Vitoladens 300-W Installation And Service Instructions For Contractors
Wall mounted oil condensing boiler for the combustion of fuel oil to din 51603-1 el (low sulphur)
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Also See for Vitoladens 300-W:
- Installation and service instructions manual (152 pages) ,
- Service instructions for contractors (108 pages) ,
- Technical manual (72 pages)
Table of Contents
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Connection and wiring diagram
External connections
Fig. 66
A1 Main PCB
A2 Switching mode power supply
A3
Optolink
A4
Burner control unit
A5
Programming unit
A6
Coding card
A7
Connection adaptor
A8
LON communication module
A9
Internal H3 extension
A10 Terminal strip
S1
ON/OFF switch
104
S2
Reset button
Fan
A
Oil pump motor PCB
B
Fuel valve
C
Fire switch
D
X ... Electrical interfaces
Outside temperature sensor
!
Flow temperature sensor, low loss header
?
Cylinder temperature sensor
%
Internal circulation pump
sÖ
fÖ
Power supply
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