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Parameter
R7426
#
Name
A B C D
C.01 DIR/
x x Selects O1 output action to adapt valve or damper direction (Dir: DA, Rev: RA).
REVO1
C.02 DIR/
x
REVO3
C.03 DIR/
x
REVO2
C.04 Ctrltyp1
b
x x x
C.05 CPATYP
x x x x Selects Control Point Adjustment (CPA) / Set Point Adjustment (SPA) type.
x x x
C.06 ORange
x x Selects output control range for O1, O2 and O3 outputs (0: 2-10 Vdc; 1: 0-10 Vdc).
C.07 Startup
x x
C.08 O1Mode
x x
C.09 O3Mode
x
C.10 O2Mode
x
x
C.11 OMode
x x
x x
x x
x
x x
x
x x
x
x x
x
C.12 I02ext
x x x x Dictate usage of I01 and I02 sensor inputs.
x x x x 0
x x x x 1
C.13 LimTyp
x x x x Limit type (0: Low limit; 1: High limit).
a
Values in brackets are for R7426D models only.
c
Setting I when Ctrltyp is Lo, Setting II when Ctrltyp is Hi1 or Hi2.
R7426A,B,C,D TEMPERATURE AND UNIVERSAL INPUT CONTROLLERS
Table 10. Configuration Parameters.
Selects O3 output action to adapt valve or damper direction (Dir: DA, Rev: RA).
Selects O2 output action to adapt valve or damper direction (Dir: DA, Rev: RA).
Control type (setpoint operating range and default parameter setting).
Setpoint
Operating Range
Lo
32 to 122°F for ventilation systems
Hi1
32 to 266°F for heating systems
Hi2
32 to 266°F with pump On/Off operation
CPATYP
Potentiometer
0
internal
1
953 to 1053 ohms CPA: ±9°F [±10%]
2
100K to 0 ohms
3
10 to 20K ohms
4
0 to 10K ohms
5
0 to 100K ohms
6
0 to 100K ohms
Enable/Disable start-up routine (Off: Disabled; On: Enabled).
O1 output mode selects an individual output function for O1.
O3 output mode selects an individual output function for O3.
O2 output mode selects an individual output function for O2.
Values for
0
Synchronous / floating
C.08,C.09
1
2 stage On/Off
and C.10
Selects the output mode for sequence operation or multistage On/Off function.
0
Damper, cooling and heating (O1,O2, O3)
1
Sequence control: heating or cooling (O1,O2, O3)
Sequence control: 6-stage On/Off
2
Sequence control: heating (O1, O3) and cooling (O2)
Sequence control: 4-stage On/Off heating (O1, O3) and cooling (O2)
3
Sequence control: cooling (O1, O3) and heating (O2)
Sequence control: 4-stage On/Off cooling (O1, O3) and heating (O2)
4
Two-position damper control (O1), heating (O3) and cooling (O2)
5
15-stage binary coded On/Off for heating (O1, O3), and cooling (O2)
I02 installed
I01 signal used for I02 input
x 2
I02 disabled and unused
a
Description
Setting
I
II
CPA/SPA Range
CPA: ±9°F [±10%]
CPA: ±9°F [0 to 100%]
SPA: 59 to 86°F
CPA: ±9°F
SPA: 59 to 86°F
SPA: 32 to 122°F or 32 to 266°F
2
3-stage binary-coded On/Off
3
Pulse width modulation
b
Actual Value unchanged during reset to default.
11
Default
Dir
Lo
c
0
1
Off
4
(un-
configured)
0
0
1
63-2565
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