Honeywell R7426A - Page 11

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