Technical data

193
Appendix
Parts List
V
VV
VI
II
IT
TT
TO
OO
OT
TT
TR
RR
RO
OO
ON
NN
NI
II
IC
CC
C 3
33
30
00
00
00
0-
--
-K
KK
K
MW1 Series
Order No.
Vitocontrol-S
MW1W (shown to right)
Custom Control Panels
MW1S (not shown)
Ordering Replacement Parts:
Please provide product Model and
Serial Number from rating plate when
ordering replacement parts. Order
replacement components from your
Viessmann distributor.
Parts
001 Hinges
008 Support arm
011 Power module (wired)
013 Front housing (with Pos. 001)
014 Circuit board enclosure
015 Flip-down cover
016 Rear housing
017 Wall console
018 Programming unit
019 Flip-down cover
020 Front cover (heating circuits)
021 Flat cable, 14-pole
024 Fuse holder cover
025 Fuse holder
038 Switch, 2-pole (power on/off)
040 Sensor #1 for outdoor temp.
043 Sensor #5 for DHW production
047 LON module
048 Circuit board (mixing valve
expansion)
049 Motherboard (control, low
voltage)
050 Circuit board (control software)
051 Diagnostics module (Optolink)
052 Motherboard (control, line
voltage)
054 Circuit board (120V power
supply)
055 Motherboard (mixing valve
expansion)
067 Sensor (immersion, NI500)
068 Sensor #2 for supply
074 Harness for programming unit
092 Fuse 6.3A / 250V (10 pack)
093 Connecting cable LON (7mtr),
RJ45
094 LON terminal resistor (2 pieces)
Serial No.
*1
7134 557, 7134 558
7248233 
7248 234 
5351 340 v1.4
015
001
001
013 008
043
067
068
040
093 094
018021051
020
038
025
092
024
011
074
019