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Honeywell R7426A Manual page 9

Temperature and universal input controllers
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Selecting Output Values
Output selection mode displays the output value and indicates
manual overrides. An activated manual override is indicated
by a displayed F (fixed).
NOTE: Press the SET button to enter adjustment mode.
Output Manual Overrides
Use this mode for manual override. It is especially useful
during installation and setup:
1. Press and hold the SET and SEL buttons to display
output data selection mode.
2. Press + until the desired parameter is displayed.
3. Press SET to enter adjustment mode.
4. Use + and - to adjust the output to the desired value.
5. Return the controller to selection mode using either:
a. SET changes the output.
b. SEL discards the change.
6. To disable the manual override:
a. Repeat steps 2 and 3.
b. Press and hold + and - until the device displays rEL .
NOTE: Before exiting manual override, disable all
overrides according to step 6.
7. To exit manual override, press SEL.
NOTE: If necessary, repeat step 7.
R7426A,B,C,D TEMPERATURE AND UNIVERSAL INPUT CONTROLLERS
TROUBLESHOOTING
Error Messages
Improper sensor inputs will trigger an error message to flash
on the display. (See Table 8.)
Standard
Display
I01 E.01
I01 – –. –
I02 E.02
I02 – –. –
I03 E.03
I03 – –. –
E.04
– – –
a
For CPATYP 0,1, or 2, the controller uses CPA value of 0 for
control point calculations.
For CPATYP 3, the controller uses SPA value equal to W1
for setpoint calculations.
9
Table 8. Error Messages.
Description
Incorrect main sensor (I01) input.
a
No input to I01.
Incorrect limit/cascade sensor (I02) input.
a
No input to I02.
Incorrect compensation sensor (I03) input.
a
No input to I03.
Incorrect humidity deviation (Xwrh) input.
No input to Xwrh.
63-2565

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