Samson 5179, 5100 operating instructions 5.5Deactivation depending on outdoor temperature

Models: 5179 5100

1 142
Download 142 pages 31.78 Kb
Page 43
Image 43
5.5Deactivation depending on outdoor temperature

 

 

 

Functions of the heating circuit

 

 

 

 

Function

WE

Configuration

Differential temperature control using variable

OFF

Co1, 2, 3

-> Fb18 = ON

weighting factors

0.5

Proportional gain factor KP /0.1 to 999

 

200 s

Reset time TN / 1 to 999 s

 

20 °C

Intended temp. difference / 0 to 40 °C

 

90 %

Analog value max. / 0 to 100 %

 

30 %

Analog value min. / 0 to 100 %

Parameters

WE

Parameter level / Range of values

Max. return flow temperature*

65 °C

PA1, 2, 3

/ 20 to 90 °C

Min. return flow temperature*

20 °C

PA1, 2, 3

/ 20 to 90 °C

* Can only be selected when Co5 -> Fb01 = ON, select: steig

Note!

Only one function can be assigned to an analog output (e.g. flow temperature control, passing on the outdoor temperature or differential temperature control).

5.5Deactivation depending on outdoor temperature

5.5.1 OT deactivation value in rated operation

If the outdoor temperature exceeds the limit OT deactivation value in rated operation, the affected heating circuit is put out of service immediately. The valve is closed and the pump is switched off after t = 2 x Valve transit time. When the outdoor temperature falls below this value (less 0.5 °C hysteresis), heating operation is restarted immediately.

With the default settings, this means that, during the warm season, the system is switched off at an outdoor temperature of 22 °C.

Parameter

WE

Parameter level / Range of values

OT deactivation value

22 °C

PA1, 2, 3 / 0 to 90 °C

in rated operation

 

 

5.5.2 OT deactivation value in reduced operation

If the outdoor temperature in reduced operation exceeds the limit OT deactivation value in re- duced operation, the affected heating circuit is put out of service immediately. The valve is closed and the pump is switched off after t = 2 x Valve transit time.

EB 5179 EN 43

Page 43
Image 43
Samson 5179, 5100 5.5Deactivation depending on outdoor temperature, OT deactivation value in rated operation