Dunham-Bush ACDS, Installation, Operation & Maintanance Manual

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4.0 ELECTRICAL
4.2.2 KEYPAD OPERATION
1) Set-point display:
Press [SEL] key to display set-point.
2) Set-point modification:
Press [SEL] key for few sec to change
St1 setpoints. Release [SEL] key, actual
set-point value flashes. Use [up arrow] or
[down arrow]key to change value. Press
[SET] key to confirm new value.
3) "P" Parameters modification:
Press [PRG/mute] key for 5 sec allows
you to access the most frequent used
parameters ("Pxx" type code).Use [up
arrow] or [down arrow] key to require
parameter. Press [SEL] key to display this
parameter. Use [up arrow] or [down
arrow] key to set value. Press [SEL] key
to confirm. Repeat procedure for other
parameters. Press [PRG/mute] key to
store modified data and go back to
normal operation.
4) "C" Parameters modification:
Press [SEL] key + PRG/mute] key for 5
sec allows you to enter password and
configuration parameters ("Cxx" type
code). Display show 0. Select password
by pressing [up arrow] key until 22 or 77
display. Press [SEL] key to confirm. Code
C0 displayed if password is correct else
repeat procedure. Use [up arrow] or
[down arrow] key to desire parameter.
Press [SEL] to confirm. Use [up arrow] or
[down arrow] key to desire value. Press
[SEL] to confirm. Repeat procedure for
other parameters. Press [PRG/mute] key
to exit.
5) Alarm Handling:
In the event of alarm condition, press
[PRG/mute] key to silence the buzzer. If
pressed after the cause of alarm
disappeared, it resets any other alarm.
6) Second Probe Display:
For NTC input versions, 2nd probe value
can be displayed by pressing [down
arrow] key while the main probe value is
displayed.
4.2.3 IR32 ELECTRONIC THERMOSTAT PARAMETERS LIST
Par. Description Min. Max. Default Fac. Set
St1
Set Point 1 min probe max probe 20 6
St2
Set Point 2 (Modes 6,7,8,9) min probe max probe 40 NA
CO
Operation Mode 1 9 2 1
Setting Differentials
P1
Set Point 1 Differential (absolute value) 0.1 99.9 2 2
P2
Set Point 2 Differential 0.1 99.9 2 NA
P3
Dead Zone Differential (Modes 3,4,5) (absolute value) 0 99.9 2 NA
C4
Authority. NTC models only with Mode 1or 2 and
C19 = 2, 3 or 4
-2 2 0.5 0.5
C5
Control Action: 0=Proportional (P) 1=Prop+Integral (P+I) 0 1 0 0
Outputs
C6
Delay time (sec) btw energization of different relays 0 999 5 120
C7
Min time (min) btw energization of the same relay 0 15 0 5
C8
Min off time (min) of the same relay 0 15 0 3
C9
Min on time (min) of the same relay 0 15 0 0
C10
Outputs Status in the event of sensor alarm:
0 = All relays de-energized
1 = All relays energized
2 = DA relays energized, all others de-energized
3 = RA relays energized, all others de-energized
0 3 0 0
C11
Output Rotation: (Modes 1,2,6,7,8 only)
0 = No rotation
1 = Standard rotation
2 = 2+2 rotation (compressor on relays 1 & 3)
3 = 2+2 rotation (valve normal open)
0 7 0 0