Basic Documentation

Functions
Control sequences
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4.6.7 Setpoints and sequences
In changeover applications, the Comfort setpoints for the heating and cooling
sequences are identical (w).
In 2-pipe applications with electric heater (RDF660MB only), the Comfort setpoint
is either at the first heating sequence (in heating mode) or at the cooling sequence
(in cooling mode).
The setpoints for Economy and Protection are below the Comfort setpoints (for
heating) and above the Comfort setpoints (for cooling).
They can be set via P11, P12 (Economy) and P65, P66 (Protection).
Application
Comfort
Economy/Protection
Heating
Cooling
Heating
Cooling
2-pipe
2-pipe with electric
heater
(RDF660MB only)
1)
If P13 = ON
2)
In case of manual changeover (P01 = 2), the first heating sequence is disabled to
prevent heating (electric heater) and cooling (coil) at the same time
W = Setpoint in Comfort
W
HeatEco/Prot
= Setpoint heating in Economy or Protection
W
CoolEco/Prot
= Setpoint cooling in Economy or Protection
YE = Electric heater sequence
In 4-pipe applications, the Comfort setpoint (w) is in the middle of the dead zone,
between the heating and cooling sequence.
The dead zone can be adjusted via P33.
If manual changeover is selected, then either the cooling sequence or the heating
sequence is released. Here, the Comfort setpoint is at the selected heating or
cooling sequence.
Application
Comfort
Economy/Protection
Heating and cooling
Heating only
1)
Cooling only
1)
Heating and/or cooling
4-pipe
1)
Manual changeover, P01 = 2
W = Setpoint in Comfort
W
HeatEco/Prot
= Heating setpoint for Economy or Protection
W
CoolEco/Prot
= Cooling setpoint for Economy or Protection
2-pipe applications
4-pipe applications