Room T Standard / 2001 Room T Reduced - Viessmann VITOCAL WPR 300 Service Instructions Manual

Heating circuit control settings
The control settings for the heating circuits are explained below.
Parameters with numbers 2xxx
always relate to the first heating cir-
cuit (A1), whereas numbers 3xxx and
4xxx describe the identical para-
meters of the second (M2) and third
(M3) heating circuits.
A1 Direct heating circuit
M2 Mixer circuit 1 with di-
rectly controlled mixer
motor (230 V)

2000 Room t standard / 2001 Room t reduced

Presetting the set room temperature of the heating circuit for "Standard" and
"Reduced" operating modes.
The centre position of rotary selector
s (Reduced: m) specifies the tem-
perature preset here at the control
unit. This value applies to all circuits
without remote control.
With rotary selector s (Reduced: m),
the temperatures can be matched in
steps of 1 °C by ±5 °C, without chan-
ging the values set here.
Heating circuit control settings
M3 Mixer circuit 2 with KM
BUS mixer
Note
Parameters 3xxx and 4xxx are only
available if the associated heating cir-
cuits are components of the system
diagram.
2xxx
3xxx
Note
With the set room temperature
selected at rotary selector s
(Reduced: m), the control unit calcu-
lates the set flow temperature in
weather-compensated mode for the
heating circuit in accordance with the
set heating curve. The set flow tem-
perature for room temperature-depen-
dent control is calculated from the
differential of the set and actual room
temperature.
The maximum value for "Room t
reduced" is "Room t standard" -1 K.
Menu
& "Device settings"
& "Programming"
& "Heating circuits"
& "Room t standard" or "Room t
reduced"
4xxx
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