812334
21
Zoom out
Zoom in
Previous page
1/28
Next page
Heat request
The MHCC can request a heat source (burner, heat pump, ...) if the heating circuit does not have enough energy (VL temperature).
Therfor either the signal output V1 is used or the request is transferred via the CAN bus to another controller in the CAN network.
Switching: Request is made via signal output V1.
Output signal to V1: "no request" = 0V, "request" = 10V
If a potential-free contact for the heat source is required, an external switching relay (part no. 77502) must be connected to
V1 See " External relay at signal output V(X) (0-10V / PWM) " on page 9.
Modulating: Request is made via signal output V1. The MHCC outputs the requested temperature (calculated target VL) as a voltage
via the signal output.
Example: Calculated target VL heating circuit 43 ° C, measured VL at sensor S2 40 ° C.
If the VL sensor exceeds the setpoint VL by 2K (preferece/actual -) for 1 minutes, the MHCC requests a heat source with 4.3V (cor-
responds to 43 ° C setpoint VL).
The requested temperature can be raised with the value "mod. Offset". 0.1 V correspond to 1 ° C. If you set an offset of 0.5 V, this res-
ults in a requested temperature of 48 ° C or 4.8 V (43 ° C corresponds to 4.3 V + 0.5 V (offset) = 4.8 V corresponds to 48 ° C)
CAN: Request is made via the CAN bus; the heat request must be activated (switching or modulating) on a controller in the network.
This controller receives the request via the CAN bus and passes it to the connected heat source.
Eco mode (during solar charge)
If the MHCC is connected via CAN bus with another controller with activated solar function, the eco mode of the MHCC can be oper-
ated in 2 different variants for this function:
Turn off: The function is not started with an active solar charge.
Lowering: The Energy saving mode switches the heating on when T eco is undershot and heats up to T eco + hysteresis when solar
charge or solid fuel boiler is active.
Reference/Actual -
Switch on hysteresis for additional heating
This setting determines the allowed undershoot of the heating circuit temperature below the calculated reference fl ow temperature. If
the heating circuit flow temperature and the storage temperature drop below the reference flow temperature by this value, the addi-
tional heating will start the additional heat source after a 1 minute delay.
Heat request is started when the flow temperature is continuously below reference temperature for 1 minute.
Insulation factor
Depending on the selected factor, the outdoor temperature has an influence on the VL temperature calculation after the set delay.
0= Off, 1= 15 minutes, 2= 60 minutes, 3= 120 minutes, 4= 300 minutes
Better insulated buildings can increase comfort and save energy by increasing the building factor.
Threshold
For Energy saving mode
If eco mode (see "Eco mode") is set to threshold: During a solar charge, this setting value "threshold" is used as the setpoint instead of
"TH reference". When the temperature drops below T eco at thermostat sensor 1, the relay is switched on and heats up to Threshold +
hysteresis.
21
21


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 Sorel MHCC 24V 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 Sorel MHCC 24V in the language / languages: English as an attachment in your email.

The manual is 2 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 Sorel MHCC 24V

Sorel MHCC 24V User Manual - German - 30 pages

Sorel MHCC 24V User Manual - French - 28 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