Time Program; Automatic Summer / Winter Recognition - Siemens Albatros2 RVA78.690 User Manual

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Siemens
Building Technologies
6.3

Time program

The following function can use the time program:
• Enable DHW charging, BZ1620
• Enable DHW circulating pump, BZ1660
• Enable DHW electric immersion heater, BZ5061
A enable takes place (Phase on) or removed (Phase off) at the set times. For
DHW, a change between nominal and reduced setpoint at the switching times.
Line no. Operating line
501 1. phase on
502 1. phase off
503 2. phase on
504 2. phase off
505 3. phase on
506 3. phase off
6.4

Automatic summer / winter recognition

Line no. Operating line
730 Summer/winter heating limit
The controller automatically determines the state summer / winter.
It analyzes the temperature measured on the collector at night, and establishes an
average temperature and filters it using a building time constant.
It the resulting temperature is above the summer / winter heating limit set here, the
controller interprets is as summer; otherwise winter.
There is no need to charge the buffer in summer, since no heating requests are
pending. Conversely, the electric immersion heating in the DHW may be enabled in
summer whereas it is locked in winter.
Solar compact controller
The settings in detail
CE1U2396en
18.08.2010