Symbols On The Display - Viessmann VITOPEND 100-W Operating Instructions Manual
With constant temperature or weather-compensated control unit
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Also See for VITOPEND 100-W:
- Installation and service instructions manual (136 pages) ,
- Installation and service instructions for contractors (72 pages) ,
- Installation and service instructions manual (60 pages)
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Programming unit
Symbols on the display
These symbols are not always dis-
played, but appear subject to the sys-
tem version and the operating status.
W
V
U
Displays:
A Winter mode is active.
B Summer mode is active.
C Standby mode is active.
D Time program is active.
E Flashes while a time program is
being set.
F Lights up or flashes when a room
temperature sensor is connected
(accessories).
G External extension is active, solar
circuit pump (accessories).
H An external extension for the con-
trol unit is connected (accessories).
K Outside temperature sensor is con-
nected (accessories).
(cont.)
A
B
C
on
pm
T
D EF
p
MPa
Ⅱ
Ⅰ
0
S
R
P
L Main display with measuring units
corresponding to the value dis-
played
M Frost protection is active.
N Fault display, carry out a reset.
O Fault display, notify your heating
contractor.
P DHW heating is active or not active
within a time program.
R Operating status
S Additional display, showing
for example the time in standby
mode.
T Service setting is active.
U Burner is operational.
Operation
G
H
°C
K
L
%
0
M
N
O
11
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Do you have a question about the VITOPEND 100-W and is the answer not in the manual?
Questions and answers
How can I use the Vitodend 100 for DHW only. I do not have the need for room heating. Please supply piping diagram for DHW only. Are there settings to accomodate this.
To configure the Viessmann Vitopend 100-W for domestic hot water (DHW) only, the following steps must be taken:
1. Ensure the heating system is turned on using the ON/OFF switch and mains isolator.
2. Enable the DHW heating by adjusting the control unit:
- Set the correct operating program.
- Set the desired DHW temperature.
- Configure the time program for DHW heating.
These settings are made using the control panel as described in the manual (see pages 28–29).
Regarding a piping diagram for DHW-only setup, the provided information does not include or mention such a diagram.
Answer: Configure DHW-only mode by enabling DHW heating, setting DHW temperature, and adjusting the DHW time program. No piping diagram is provided.
This answer is automatically generated
@Mr. Anderson Thank you for your response. The system does not see pressure although i have 4.5 bar pressure on the DHW system. Must there be pressure on the room heating system as well.