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2
3
1. Press the ON Key. TK logo is shown briefly.
2. Startup screen appears. Unit prepares to operate.
3. Standard Display indicates unit is ready to run.
4
4. Press OFF key to stop unit operation.
Screen will display OFF, then go blank.
1
Standard Display
is the default
when no other
display function is
selected. Shows box temperature and setpoint or
OFF for all zones. Two zone operation shown
here. Zone 1 is – 9.4 F with –10 F setpoint. Zone 2
is 35.8 F with 35 F setpoint. Top of display shows
unit is in CYCLE SENTRY mode. Two arrows
indicate that both zones are cooling.
1. At the Standard Display, press the soft key to
show the Zone Display for the desired zone.
1
2
2. Selected zone is displayed.
3. “Turn Zone (number) ON/OFF” identifies zone
and indicates that zone may turned ON (if
presently off) or OFF (if presently on).
3
1. At the Standard Display, press the soft key to
show the Zone Display for the desired zone.
1
2
2. Turn Zone ON or OFF by pressing soft key.
3. Display will briefly indicate change in progress.
3
4. Display will show new zone setting, then return to
Standard Display after 30 seconds.
4
1. At the Standard Display, press the soft key to show
Zone Display for the desired zone (Zone 2 shown).
2. Press the “-” and/or “+” soft keys to display
setpoint. YES and NO soft keys also appear. “-
” and/or “+” soft keys are used to change setpoint
(here to 40 F).
4
1
2
3. When desired setpoint is reached,
press YES soft
key within 10 seconds
to confirm and load
3
4. Display will briefly show “PROGRAMMING NEW
SETPOINT”, then return to the Standard Display.
Diesel engine preheats and starts are automatic in
Continuous and CYCLE SENTRY modes. The
engine will preheat and start as necessary if the unit
is on. The start screen will be displayed. Preheat and
start will be delayed in CYCLE SENTRY if there is no
need for the unit to run.
Caution: The engine may start automatically
at any time the unit is turned on.
Defrost cycles are usually initiated based on time or
demand. Manual defrost is available if the zone is on
and the coil temperature is less than 45 F (7 C). Only
one zone may be defrosted at a time.
1. Press the DEFROST key. The display will prompt
for the zone to defrost
2. Press the soft key to select the zone to defrost.
Defrost of that zone will begin (Zone 1 shown here).
1
2
3
3. The display will briefly show “PROGRAMMING
DEFROST” and then “ZONE ‘X’ DEFROST
STARTED” where X = zone1 or 2.
4. Display will return to Standard Display. The zone
in defrost will show “DEF.” Bar indicator shows
approximated time to complete defrost cycle.
If preprogrammed, high speed operation can be
locked out. Press the key to enable or disable the
feature. Display shows lockout programming in
progress and then active or inactive status.
