oventrop Regtronic RQ Installation And Operating Instructions For The Specialised Installer page 31

Error relay
Main menu / Additional functions / Error relay
Adjustment channel Description
Error relay Activating the function
Relay Relay selection
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Stratifi ed return
Main menu / Additional functions / Stratifi ed return
Adjustment channel Description
Stratifi ed return Activating the function
Relay Relay selection
∆Ton
Switch-on temperature difference
∆Toff
Switch-off temperature difference
Ref. sensor Allocation of reference sensor
Store sensor Store sensor selection
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Adjustment range / selection Factory setting
Yes, No No
system dependent system dependent
R4/PWM
S3...S8
S1
S2
R1/R3
primary side secondary side
Primärseite Sekundärseite
Adjustment range / selection Factory setting
Yes, No No
system dependent system dependent
1.0 ... 50.0 K 5.0 K
3.0 K
0.5 ... 49.5 K
S1 ... S7, VFD VFD
system dependent S5
The Error relay function can be used to operate a
relay in the case of an error. Thus, e. g. a signalling
device can be connected to signal errors.
If the error relay function is activated, the allocated
relay will switch on when an error occurs.
The Stratifi ed return function can be used for
maintaining the stratifi cation inside the store. When
the return temperature in the HW line of the sec-
R2
ondary side is very high, the store contents might
be mixed.
If the difference between the temperatures at the
reference sensor and the store sensor exceeds the
adjusted switch-on difference (∆Ton), the allocated
relay is energised. The store return will be led in at
a higher level.
The relay is switched off when the controller detects
no fl ow rate at the reference sensor or the tempera-
ture difference falls below the adjusted switch-off
difference ∆Toff.
The stratifi ed return function can be activated once.
The corresponding relay can be allocated to either
R1 or R3, as long as these relays are not used for
other functions.
The reference sensor for the stratifi ed return can be
freely selected.
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