Siemens Albatros2 AVS37 User Manual download pdf (Page 72)

72/135

Siemens Switzerland Ltd User Manual CE1U2353en

HVAC Products Heating circuits 02.06.2009

• Boost heating is possible with or without room sensor

TRw The room temperature setpoint

TRx Actual value of the room temperature

DTRSA Increase of room temperature setpoint

Quick setback

Line no. Operating line

HC1 HC2 HCP

780 1080 1380 Quick setback

Off

Down to reduced setpoint

Down to frost prot setpoint

During quick setback, the heating circuit pump is deactivated and, in the case of mixing

valve circuits, the mixing valve is fully closed.

• Function with room sensor:

When using the room sensor, the function keeps the heating switched off until the room

temperature has dropped to the level of the Reduced setpoint or the frost level.

When the room temperature has fallen to the Reduced level or the frost level, the

heating circuit pump will be activated and the mixing valve will be released.

• Function without room sensor:

Quick setback switches the heating off for a certain period of time, depending on the

outside temperature and the building time constant.

Duration of quick setback when Comfort setpoint minus Reduced setpoint = 2°C

(e.g. Comfort setpoint = 20°C and Reduced setpoint =18°C)

Building time constante:

Outside air

temperature

mixed:

0 2 5 10 15 20 50

15 °C 0 3.1 7.7 15.3 23 30.6 76.6

10 °C 0 1.3 3.3 6.7 10 13.4 33.5

5 °C 0 0.9 2.1 4.3 6.4 8.6 21.5

0 °C 0 0.6 1.6 3.2 4.7 6.3 15.8

-5 °C 0 0.5 1.3 2.5 3.8 5.0 12.5

-10 °C 0 0.4 1.0 2.1 3.1 4.1 10.3

-15 °C 0 0.4 0.9 1.8 2.6 3.5 8.8

-20 °C 0 0.3 0.8 1.5 2.3 3.1 7.7

Duration of quick setback in hours

• Quick setback is possible with or without a room sensor

Example

°C

2371D03

DTRSA

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 134 135

Comments to this Manuals

No comments

Siemens Albatros2 AVS37 User Manual Page 72

Comments to this Manuals

Related products and manuals for Thermostats Siemens Albatros2 AVS37