Application Guide

General Information (All Applications) 6 CTE-5202 Applications Guide, AN0912A Rev. H
Change Configuration
Press and hold both the Up and Down arrows but-
tons for about ten seconds until the display starts
ashing “LIMITS.”
NOTE: When a menu is ashing (LIMITS,
ADVANCE, SYSTEM, or EXIT),
pressing Up or Down displays the next
menu item and pressing Setpoint selects
that menu. When a menu is NOT ashing
(e.g., DEAD BD), pressing Up or Down
changes the value and pressing Setpoint
displays the next menu item.
To change any of the limits (output span) when
“LIMITS” is ashing, press the Setpoint buon
until the desired limit (AO1 MIN, AO1 MAX, AO1
AUX, AO2 MIN, or AO2 MAX) is displayed.
(Limits are adjustable from 0 to 12 VDC, with MIN = 0,
Change Setpoint
To change the setpoint:
1. Push the Setpoint buon (or either Up/Down
buon) to display the current value.
NOTE: Sequences 2 and 3 have two setpoints
indicated by “snowake/cool” and “re/
heat” icons. When the Cooling setpoint is
showing, pushing the Setpoint buon will
display the Heating setpoint.
2. Use the Up/Down buons to change the value.
3. Press the Setpoint buon again, and the thermo-
stat will control at the new setpoint. (Alternately,
after about 30 seconds of no activity, the display
reverts back to displaying room temperature.)
NOTE: Setpoint range is 55 to 85° F (13 to 30° C),
with a default of 74° (for cooling or 70° for
heating).
MAX = 12, and AUX = 0 as defaults.) Use the Up and
Down buons to change the desired values. (If no
Auxiliary Flow is desired, set AO1 AUX to 0.)
To change any of the system or advanced features,
press the Up or Down buon until the desired (ash-
ing) ADVANCE or SYSTEM menu appears and
then press the Setpoint buon.
The ADVANCE menu enables changing (via the
Up/Down buons) the values of:
• DEAD BD—Deadband or “minimum setpoint
dierential” (adjustable from 1 to 10° F, 2° F de-
fault)
• SETBACK—Standby/unoccupied setback o-
set (adjustable from 0 to 10° F, 2° F default)—does
not apply to morning warm-up
• PROP BD—Loop proportional band or
“throling range” (adjustable from 1 to 10° F, 2° F
default)
• Rm OFST—Room temperature oset (adjust-
able ±5° F, 0 default)
• CNG OVR—changeover temperature (adjustable
from 55 to 85° F, 77° F default)
• I TIME—Loop integral time (adjustable from 0 to
60, 30 minutes default, 0 = cancel integral action)*
The SYSTEM menu enables changing:
• Sequence (SEQ1, SEQ2, or SEQ3)—see
Sequences on page 7
• °F (ENGLISH) or °C (METRIC)
• BLANK—Display blanking (NO or YES)—
when blanked, the temperature will display for
no more than 30 seconds after a buon is pushed
When done, navigate to (ashing) Exit to save
changes. Leing the menu time-out (about 30
seconds) will not permanently save changes.
*NOTE: As long as there is an error between room
temperature and setpoint, the integral
action will cause the output to integrate up
or down. I TIME is the time it takes the
integral action to repeat the eect of the
proportional action.
(Colder Room Temperature Warmer)
Cooling
Setpoint
Heating
Setpoint
Proportional
Band
Proportional
Band
Deadband
(Cooling)
Setback
(Heating)
Setback
Max.
Limit
Min.
Limit
Output
Span