813835
69
Zoom out
Zoom in
Previous page
1/76
Next page
69
3. Small amount of excess power:
The power supply utility provides the power at a low
price.
If a time phase is active in the time program, the
heat pump is started. To make use of low-cost elec-
tricity, additional energy can be stored in your sys-
tem. For this purpose, your contractor may have
increased (or reduced, for cooling) the set tempera-
ture values for the following functions:
DHW heating
Buffer cylinder heating
Central heating
Room cooling
4. Large amount of excess power:
The power supply utility provides the excess power
at no cost.
The power supply utility starts the heat pump imme-
diately, even if no time phase is active in the time
program. System components are heated to the
max. possible temperatures or cooled to the min.
possible temperatures.
Information about operation with low-cost and free
electricity
The electric power consumption of the heat pump is
not taken into account when calculating the seasonal
performance factor.
Example: Utilisation of excess power for DHW
heating
Low-cost excess power
The heat pump is operated with excess power from the
power supply utility to heat DHW to the increased set
DHW temperature.
In the time program you have set the time phases dur-
ing which DHW heating is enabled. The power supply
utility may start DHW heating, even outside the set
time phases.
To utilise even more low-cost excess power for DHW
heating, the standard DHW temperature can be
increased. Your contractor can set the value for this
temperature increase.
Standard DHW temperature:
50 °C
Increase in DHW temperature (set by your contrac-
tor):
10 K (10 Kelvin)
The DHW is heated to 60 °C. If DHW consumption
remains the same, the next DHW heating period using
power at the standard tariff is postponed until later.
Free excess power
DHW heating is started immediately, regardless of
your settings in the time program.
The DHW will be heated to the maximum possible
temperature. This temperature has been set by your
contractor.
Standard DHW temperature:
50 °C
Max. temperature of your DHW cylinder (set by your
contractor):
65 °C
The DHW is heated to 65 °C. If DHW consumption
remains the same, the next DHW heating period using
power at the standard tariff is postponed until later.
Note
If scald protection is enabled, the DHW is heated to a
maximum of 60 °C, even if the Smart Grid settings
specify a higher DHW temperature.
Note
If you have enabled several functions for Smart Grid,
the functions for DHW heating will have priority over
the functions for room heating.
Set temperature
Specific temperature that should be reached, e.g. set
DHW temperature for example.
Drinking water filter
A device that removes solids from the drinking water.
The drinking water filter is built into the cold water
pipework to the DHW cylinder.
Evaporator
The evaporator is a heat exchanger that transfers ther-
mal energy from the outdoor air to the heat pump.
In this process, cooling of the supplied air can cause
water to condense. This condensate can freeze on the
evaporator, which has a negative effect on heat trans-
fer.
Appendix
Terminology (cont.)
6199692
69


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Viessmann Vitocal 151-A at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Viessmann Vitocal 151-A in the language / languages: English as an attachment in your email.

The manual is 4.34 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Viessmann Vitocal 151-A

Viessmann Vitocal 151-A User Manual - German - 80 pages

Viessmann Vitocal 151-A User Manual - Dutch - 80 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info