« back to results for ""
Below is a cache of http://www.fficorp.com/docs/english/manuals/dryers/abctr035.pdf. It's a snapshot of the page taken as our search engine crawled the Web.
The web site itself may have changed. You can check the current page or check for previous versions at the Internet Archive. Yahoo! is not affiliated with the authors of this page or responsible for its content.
INSTALLATION INSTRUCTIONS FOR AB CYCLE TIMER REPLACEMENT KIT CTR-001B
The AB Cycle Timer Replacement Kit No. CTR-
001B is designed as a service replacement part for the
standard 44-029 cam-type cycle timer, which was factory
installed into all AB Series grain dryers prior to 1987.
This kit supersedes CTR-001 and CTR-001A.
The operation of the CTR-001B cycle timer is similar
to that of the original timer, with an added advantage of
allowing easier adjustment of the High-Heat, Low-Heat,
and Cool cycle timer functions. Please read the following
information and retain this bulletin within your manual for
future parts and circuit reference.
Beginning with the CTR-001B kit introduced in June
of 1997, an electric time delay relay is being used in place
of the thermal time delay tube 115C30 (TDR2) previous-
ly used. This change improves the resetting operation of
the three cycle timers used in the CTR-001 kit. The new
electronic time delay relay also has the advantage of
being adjustable from 1 to 100 seconds, thus permitting
the unload auger cleanout time to be field set.
NOTE: Make sure to follow the charts and recom-
mendations within the Dryer manual, except for the
instructions and diagrams within this bulletin.
TIMER FUNCTIONS
Dry Timer: The DRY TIMER sets the total drying
time desired, as suggested by the "Cycle Time Chart" in
the Operator's Manual. The DRY TIME period is the sum
of the High-Heat time setting plus the Low-Heat time.
High-Heat Timer: The HIGH-HEAT time setting is
the initial time period of the total dry time setting. The
LOW-HEAT time is the remaining interval between the
end of the High-Heat to the end of the Dry Time setting.
Cool Timer: The selected COOLING time will occur
at the completion of the Dry Time (if not being held by the
"MC" thermostat).
OPERATING INFORMATION
When operating with these newer timers, refer to the
suggested total time listings shown within the CYCLE
TIME CHART of the manual for the "INITIAL CYCLE
TIMES" and "TOTAL DRYING TIME." Then, instead of
adjusting one cycle timer as listed in the manual, simply
adjust each of the three timers as suggested in the fol-
lowing instructions.
HIGH HEAT TIMER: As a general recommendation,
the HIGH HEAT timer setting should be approximately 2/3
of the DRY TIMER setting. This adjustment would allow
the remaining 1/3 of the drying time for the LOW HEAT
portion of the drying cycle.
EXAMPLE: If the Cycle Time Chart in the Dryer Manual
listed a 60-minute total drying time, this would require a
60-minute Dry Timer setting and a 40-minute High Heat
setting. A 90-minute drying time would consist of 90 min-
utes DRY TIME and an approximate 60-minute High Heat
setting. See illustration below.
COOL TIMER: For normal Dry-and-Cool operation,
the Cool timer should be set as suggested by the
Operator's Manual (see lower box in Cycle Time Chart).
Cool time is normally 18 to 20 minutes, depending on the
model of dryer.
For Full-Heat operation, the Cool timer should be set
to approximately one minute, with Burner switch in the
ON position. If partial cooling or extra cooling is desired,
INSTALLATION INSTRUCTIONS FOR
AB CYCLE TIMER REPLACEMENT KIT CTR-001B
Bulletin AB/CTR-03-5
DRY
COOL
HIGH HEAT
1.5
.5
0
1.0
2.0
2.5
3.0
1.5
.5
0
1.0
2.0
2.5
3.0
1.5
.5
0
1.0
2.0
2.5
3.0
REPLACEMENT
CYCLE TIMERS
CFABOLD.DS4
3
1 0
2
4
5
6
3
1 0
2
4
5
6
3
1 0
2
4
5
6
ASC
CONTROL
PANEL
Fig. 1 Typical CTR-001B timer installation
Division of ffi Corporation
5900 Elmwood Ave. Indianapolis, IN 46203
1997 ffi Corporation Printed in U.S.A.
10
MINUTES
DRY TIME = 60 MINUTES
20
40
60
30
50
0
70
80
LOW-HEAT TIME = 20 MINUTES
1
2
3
4
DRYING EXAMPLE
ABCYCLE.DS4
HIGH-HEAT TIME = 40 MINUTES
COOL TIME =
20 MINUTES the Cool timer can be readjusted as desired and the
Burner switch must be in the AUTO position.
TIMER SETTINGS and ADJUSTMENT
Current factory production AB Series dryers are
shipped with the Dry, High-Heat, and Cool cycle timers
set in the 3h (3-hour) mode of operation. It may be desir-
able to change the range of the Cool timer to the 30m
(30-minute) mode to allow more accurate setting of the
Cool time, typically 18 to 20 minutes. See ADJUSTING
the TIME RANGE and HERTZ ahead for how to change
the range setting.
TIMER SETTING
To adjust the time, simply rotate the outer dial face to
the desired setting when the timer is not energized. The
No. 1 mark equals 1/3 of the selected range (for example,
1/3 of the 30-min. range = 10 min.). The timer normally
begins timing when power is applied to the control circuit
Start button and the dryer has been filled with grain.
Cycle progress is tracked during operation by the "in-
progress" indicator. If the dryer is shut down by pressing
the control circuit Stop button or by a safety circuit shut-
down, the Dry timer will retain its memory and resume its
cycle when the dryer is turned back on. If the dryer is
turned off due to the fan breaker being turned off, main
power to the dryer being disconnected, or the ASC panel
Timer Reset button being pressed, the Dry timer's "in-
progress" memory will be lost because it is held by power
from the 5A control fuse.
NOTE: When timer is energized, the time setting
may be immediately decreased manually, but cannot be
increased until after timer has been de-energized and
becomes reset at the end of the unload cycle or by press-
ing the timer reset button.
ADJUSTING the TIME RANGE and HERTZ
To adjust the time RANGE (not the time setting) of
the Omron timer:
Use a small screwdriver to rotate the time range
adjustment screw to the desired range (30m or 3h).
60 Hertz is the normal power frequency setting for
use in the U.S.A. (Can be changed to 50 Hertz by rotat-
ing the adjuster as shown in Fig. 2.)
Fig. 2 Omron cycle timer
See the Resetting the Omron Timers After a Safety
Shutdown chart for important shut-down information.
TIMER INSTALLATION
The following steps outline the procedure for replacing
the early cam-type timer (part no. 44-029) with the CTR-
001B timer kit.
1.
Shut off the main power supply and turn dryer circuit
breakers OFF.
2.
Open the ASC deadfront and disconnect wiring con-
nector at old cycle timer.
3.
Remove screws, nuts, and bolts which retain cycle
timer and its base within the ASC box.
Remove and discard old cycle timer and its mounting
base.
2
0
.5
1
1.5
2.0
2.5
3.0
SET TIME INDICATOR (manually
set - does not move during cycle)
TIME RANGE
SETTING WINDOW
TIME RANGE
ADJUSTMENT
SET SCREW
"IN PROGRESS" TIME INDICATOR
OMRON.DS4
AC POWER FREQUENCY
ADJUSTOR
(60Hz setting shown)
50
60
Required Operator Correction
-- None --
Restart dryer and continue the high-heat drying cycle; press the
Manual Restart button on the ASC panel.
Restart and continue low-heat drying cycle. Press the Manual
Restart button.
The Cool Timer will resume the cool cycle. Restart dryer and press
the Manual Restart button.
NOTE: Dryer will continue unloading after panel is re-energized.
Timer's Reaction
-- None --
High-Heat and Dry Times stay where
they stopped.
High-Heat and Dry Timers stay where
they stopped.
All three timers stay where they stopped.
All three timers stay where they stopped.
RESETTING the OMRON TIMERS AFTER a SAFETY SHUTDOWN
Stage of
Operation
Loading
High Heat
Low Heat
Cooling
Unloading
NOTE: Upon main power failure, all timer memory is lost. Turn Dry and Cool timers down to zero and unload
enough grain to get a good representative sample. Test the grain for moisture and then check the dryer manual's
Cycle Time Chart for the correct Dry timer setting required to reach the target moisture level. When the batch is
completed, reset timers to their normal settings. 4.
Use hole template (last page of this bulletin), then
carefully mark the required new hole opening and mount-
ing screw locations within the ASC dead-front. Use care
when locating the template, to avoid possible parts inter-
ference after timers are installed in place. Depending on
model of dryer and method of cutting the hole opening, it
may be advisable to open deadfront and locate template
on inside surface. Drill the four mounting plate screw
holes using a 0.136" (#29) dia. drill bit. If a saber saw is
used, drill 3/8" holes at the corners to avoid breaking
blade when turning saw at hole corner.
5.
Mount the timer plate on the outside of the ASC
deadfront and secure it in place by installing the four #8
pan-head screws.
6.
Reconnect wiring connector half from new timers to
old connector half.
7.
Refer to appropriate enclosed wiring diagram and
connect the loose yellow and b