oventrop Regtronic RQ Installation And Operating Instructions For The Specialised Installer page 29

As soon as at least one of the reference relays is ac-
tive, the switch-on condition for the reference relay
function is considered unfulfilled.
In the AND mode, the switch-on condition for the
reference relay function is considered fulfilled when
none of the reference relays is inactive.
As soon as at least one of the reference relays is inac-
tive, the switch-on condition for the reference relay
function is considered unfulfilled.
In the NAND mode, the switch-on condition for the
reference relay function is considered fulfilled when
at least one of the reference relays is inactive.
If none of the reference relays is inactive, the switch-
on condition for the reference relay function is con-
sidered unfulfilled.
Example:
Funktion
Thermostat a
Thermostat b
Differential function ∆T
Timer
Flow rate dependent de-/activation
Reference relay
Relais
Note:
If more than one function block has been
activated, relays of numerically higher func-
tion blocks may not be used as reference
relays.
Note:
For more information about timer adjust-
ment, see page 10.
∆T-S3>S5
Tha-S3 Thb-S4 Timer dVon/dVoff Reference relay R3
29