Required coding
Address
Function relay of the internal extension: Cylinder loading
pump
53:3
System design 2
With/without DHW heating with 1 heating circuit with mixer and system
separation
!
Outside temperature sensor
?
Flow temperature sensor
%
Cylinder temperature sensor
sÖ
Heating circuit pump
sA
Cylinder loading pump (connec-
tion via external extension H1)
sK
Cylinder loading pump (connec-
tion via internal extension H1 or
H2)
lH
Power supply
aVG
KM BUS
A
Internal extension H1 or H2
or
External extension H1
B
Extension kit for 1 heating circuit
with mixer
C
Maximum temperature controller
(underfloor heating)
D
Heating circuit pump (sec-
ondary)
E
Heating circuit pump (primary)
F
Heat exchanger for system
separation
G
Expansion vessel
Further details regarding the individual steps
(cont.)
25
Initial start-up, inspection, maintenance
56
92
550
GB
Summary of Contents for VITODENS 300 WB3A
Page 10: ...Opening the control unit housing 10 5862 570 GB...
Page 14: ...Closing control unit housing and inserting user interface 14 5862 570 GB...
Page 129: ...Parts lists cont 113 Parts lists 5692 550 GB...
Page 130: ...Parts lists cont 114 Parts lists 5692 550 GB...
Page 131: ...Parts lists cont 115 Parts lists 5692 550 GB...
Page 132: ...Parts lists cont 116 Parts lists 5692 550 GB...
Page 133: ...Parts lists cont 117 Parts lists 5692 550 GB...
Page 145: ...129 5692 550 GB...
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Page 147: ...131 5692 550 GB...