KMC Controls FlexStat User Manual

FlexStat 26 Operation Guide, Rev. R
Trend Viewer
TREND VIEWER
1:
2: SPACE HUMIDITY 27
3: FAN 19
4: COOL 1 18
5: COOL 2 21
6:
7:
SPACE TEMP 34
TL #1 SPACE TEMP
APR11 1:27PM, 70.3
APR11 2:27PM, 71.3
APR11 3:27PM, 71.6
APR11 4:27PM, 71.8
APR11 5:27PM, 76.3
APR11 6:27PM, 81.2
APR11 7:27PM, 82.3
To view trend log buers, press:
1. Up/Down to move among entries.
2. Enter to select.
Trend logs are setup in the (Advanced) Trend Logs
menus (see page 19).
Resetting the FlexStat
Types of Reset
If the FlexStat is not operating correctly or ifalow
limitalarmhasoccurred, the FlexStat should be
reset (reinitialized). Any reset interrupts normal op-
eration, and three types of reset exist:
• A warmstart is generally the least disruptive op-
tion (restarting normal operation the quickest).
• If problems still persist, try a coldstart. (This
should also be used after a new Control Basic
program is loaded and compiled.)
• If problems still persist (or major changes in a
rmware update have taken place) restoringfac-
torydefaults (and reconguring and reprogram-
ming the FlexStat) may be required.
The “up time” since the last reset can be seen in the
About menu. See About the FlexStat on page 6.
Warm and Cold Starts
CAUTION
During a restart, the analog outputs go to zero,
and relays go to their normally open state. A re-
start is a process that lasts around ten seconds,
and it may result in several changes of state
for an output, turning equipment off and on
abruptly. Before resetting the FlexStat, manually
override equipment as needed. If a large fan
is controlled by the FlexStat, for example, set
a minimum off time. See Fan Setup on page 8
(built-in, selectable applications with compres-
sors have a default programmed minimum off
time of 300 seconds).
A warmstart does the following in the FlexStat:
• (Afterzeroingoutobjectsduringtherestart
process)restorespresentvaluesofobjectsto
theirlastvaluesbeforetherestart(until they are
updated by the FlexStat’s programs).
• Restarts the controller’s Control Basic programs.
• Leaves conguration and programming intact.
CAUTION
If the checksum test in RAM fails during a warm
start, a cold start is performed instead.

KMC Controls FlexStat Specifications

General

Brand	KMC Controls
Model	FlexStat
Category	Thermostat
Language	English