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R7426A,B,C TEMPERATURE CONTROLLER WITH AND WITHOUT REAL-TIME CLOCK
EN1B-0203GE51 R0507C 4
config. par. R7426
no. name
description
default
setting
I / II
A B C
actual
value
C.12 T2ext Enable / Disables the T1 sensor input to be used for both T1 and T2 inputs.
0 x x x
0
1
T2 installed
T1 signal used for T2
C.13 LimTyp Limitation type determines whether the limit function is low or high. 0 / 1
x x x
0
1
Low limit
High limit
C.14 Senstyp Sensor type determines automatic detection or manual selection of NTC
sensors.
0 x x x
0
1
Auto detection
NTC sensor type
C.15 Y1CTRF Controls the action of Y1 or activates the occupancy input for summer/winter
changeover.
0 / 1 x x x
R7426A R7426B,C
0
1
2
cooling
heating
summer/winter changeover
0
1
mixed air damper
energy recovery
C.16 AddHour
2)
Adjusts the month for winter/summer time change.
3 x x x
Min.
Max.
0 (disables winter/summer time change)
12
(March)
C.17 SubHour
2)
Adjusts the month for summer/winter time change.
10 x x x
Min.
Max.
0 (disables summer/winter time change)
12
(Oct.)
C.18 PSTG_H
2) 3)
Determines the prestart gradient to reach the comfort setpoint for heating.
0 K/min x x x
Min.
Max.
0 (disabled)
2
C.19 PSTG_C
2) 3)
Determines the prestart gradient to reach the comfort setpoint for cooling.
0 K/min x x x
Min.
Max.
0 (disabled)
2
C.20 tvd
2)
Determines the damper prestart time before scheduled comfort mode
15 min x x
Min.
Max.
0 (normal control)
90
C.21 Adapt
2)
Optimum Start Self Adaption speed
50% x x x
Min.
Max.
0
100
C.22 Adr
1)
Sets the serial communication address, used for service or maintenance.
254 x x x
Min.
Max.
0
255
C.23 DefProg Initiates the default programming.
0 x x x
0
1
No Default programming
Initiates Default programming
1)
actual value will not be changed during reset to default parameter
2)
on Controllers with Real-Time Clock, only
3)
can be overwritten by controller for self-adaption purposes, resolution = 0.01 K/min
For detailed information of configuration parameters see chapter Configuration Settings.
Table 4. Configuration parameters R7426A,B,C (part 2)