Kmc-controls FlexStat Operation Guide Manuale Utente Scaricare il pdf (Pagina 34)

FlexStat 34 Operation Guide, Rev. R

Level Is “Too High”

• See the CO

and DCV Sequences Are Not Work-

ing section above.

• To reduce nuisance complaints by occupants,

turn o the visibility of the CO

level rotation in

the display. See (Advanced) User Interface (UI)

on page 21.

DCV Menu Is Not Visible

• In the BAC-12xxxx/13xxxx/14xxxx models, DCV

Setup is visible only when an application witha

modulatingeconomizeroptionisenabled. See

Damper Setup on page 7.

Input Values Are Outside the Expected Range

• Check that ALL the input pull-up resistor

switches are fully latched in the correct positions.

See the Connections and Wiring section of the

relevant FlexStat Installation Guide. Asingle

incorrectswitchpositionmayaectmultiple

inputs.Allinputswitchesmustbelatchedin

eitherthe10KOhmorthe0–12VDCposition

evenifnoinputisconnected!Inputswitch

pairs(3-4,5-6,and7-8)mustneverhaveboth

switchessetinthesamedirection—ifswitch3

issettotheleft,forexample,4mustbesetto

theright(orviceversa).

• Check that the correct input type is selected on

the Inputs screen. A Type III thermistor is the

default on external inputs. See (Advanced) Inputs

on page 17.

• Check input wiring. See Wiring Issues on page 39.

• Check connected sensors.

• Using BACstage or TotalControl, check that the

input is not congured as “Out Of Service.”

• Restore the FlexStat to factory seings (see Reset-

ting the FlexStat on page 26) and recongure.

• For an external CO

sensor connected to IN9,

allow at least 15 minutes after installation for the

reading to stabilize.

Humidiﬁcation/Dehumidiﬁcation Issues

• See Humidity Setup on page 8.

Motion/Occupancy Sensor Does Not Work

• The initial rmware (R.1.0.0.0 and earlier) did not

support this sensor within the built-in selectable

programs. Custom programming was required—

see the FlexStatApplicationGuide. Upgrade to

the latest rmware for built-in support.

• After an initial power-up or restart, the motion/

occupancy sensor requires about 30 seconds

before it will begin responding to motion.

• The motion/occupancy sensor initiates override

only during “o” times in the schedule. See

Schedules on page 24.

• Check that the motion sensor is enabled and

detects motion. See Motion Sensor Setup on page

• Using BACstage or TotalControl, check that BI6

(occ status) is not congured as “Out Of Service.”

• The FlexStat must be installed where there is a

clear view of typical trac area (reliable range is

out to about 33 feet). Remove or move obstacles.

Reinstall the FlexStat in a more optimal location

if necessary.

• Connect remote motion sensors to an input

(requires custom programming).

• For more information on detection performance,

paerns, conguration, programming, and other

issues, see the Motion/Occupancy Sensor section

in the FlexStatApplicationGuide.

Temperature Reading Is Incorrect

• Check that the correct °F/°C temperature scale is

selected—see Navigation on page 4.

• Fahrenheit decimal values are not displayed by

default but can be enabled in the User Interface

menu—see Show Temperature Tenths (Decimals)

on page 21.

• Check for the correct remote temperature sensor

conguration—see Sensor Setup on page 9.

• After applying power for the rst time (or after an

outage), allow the FlexStat to self-calibrate a few

minutes before verifying temperature reading.

(Allow BAC-13xxxx/14xxxx FlexStats with CO2

sensors to stabilize for about 30 minutes.)

• If the discrepancy is small, adjust the calibration

oset—see (Advanced) Inputs on page 17.

• Check that the thermistor (on models without

humidity sensors) is centered in its hole at the

boom of the case and has an air gap around it.

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Kmc-controls FlexStat Operation Guide Manuale Utente Pagina 34

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