2. Lift the end cap off the adjustment knob. See Fig. 6.
Locking the Control at a Single Temperature
. Determine the desired locking temperature. Select the
1
appropriate number on the adjustment knob to match the
desired temperature setting. See Fig. 5.
Fig. 6—Lift the end cap off the adjustment knob.
2
. Lift the end cap off the adjustment knob. See Fig. 6.
3. Remove the adjustment knob from the actuator as
follows:
3
. Remove the adjustment knob from the actuator as
ADJUSTMENT
KNOB
END
CAP
a. Turn the adjustment knob so the desired knob setting
is aligned with the white line on the actuator base.
b. Pulltheknobofftheheadoruseascrewdriverinserted
in one of the slots to pry off the knob. See Fig. 7.
2
4
. Insert the pin in slot 4a for 68°F (20°C) or slot 4b for
ACTUATOR
M9715
7
2 °F (22°C).
Fig. 8—Insert the pin in the slot to set the limit
range.
follows:
a. Turn the adjustment knob so the desired knob setting
is aligned with the white line on the actuator base.
b. Pulltheknobofftheheadoruseascrewdriverinserted
into one of the slots to pry off the knob. See Fig. 7.
LIMIT PIN
WHITE LINE
5
4b
4a
3
PIN
POSITION
*
Fig. 7—Remove the knob from the actuator.
(SEE FIG. 5)
FIXED STOP
4
. Push the limit pin up and slide it into the slot that
SCREWDRIVER SLOT (2)
LIMIT PIN REMOVED
M9723
WHITE LINE
CALIBRATION
INDENT
5. To replace the adjustment knob, align the knob setting
from step 3a with the white line on the base and push the
knob toward the base. Make sure the three arm clips snap in
place at the top of the adjustment knob.
RED
BUTTON
6. Replace the end cap.
BASE
ACTUATOR HEAD
ARM CLIP (3)
Recalibrate T104F Control
1
. Lift the end cap off the adjustment knob. See Fig. 6.
2. Pulltheknobofftheheadoruseascrewdriverinserted
in one of the slots to pry off the knob. See Fig. 7.
. Turn the actuator head clockwise until the head stops
Fig. 7). The calibration indent should be aligned approxi-
M9714
3
(
mately with the white line on the base when the head stops.
If the indent is 180 degrees from the white mark, unscrew the
head completely from the base and rethread the head to the
base so that it is aligned with the white mark. Turn the act-
uatorheadclockwiseuntiltheheadstops. Completeremoval
of the head from the base is required only if the actuator was
previously dismantled.
corresponds with the desired temperature limit. If the lower
limit remains at the frost protection mark (*), insert an
additional pin in the slot that corresponds with the second
limit.
Example 1:
If the desired temperature range is 43° to 73°F (6° to
2
3°C), leave the pin in the slot marked * and add one pin in
NOTE:Thedistancebetweentheactuatorheadandthestatic
portion of the control should be approximately 3/8 in.
slot 5.
(9 mm).
Example 2:
If the desired temperature range is OFF to 68°F (23 °C),
4. Turn the actuator head counterclockwise approxi-
matelyoneturnuntilthecalibrationindentontheheadaligns
with the white line on the base. For the 72 °F (22°C) single
temperature setting, align the indent with the center of the
adjustable limiting pin.
5. Replace the adjustment knob by aligning the red
button with the white line on the base and pushing the knob
toward the base. For the 72°F (22°C) single temperature
setting, align the red button with the center of the adjustable
limiting pin. Make sure the three arm clips snap in place at
the top of the adjustment knob.
move the pin to slot 5. No additional pin is required.
5. To replace the adjustment knob, realign the knob
setting in step 3a with the white line on the base and push the
knobtowardthebase. Makesurethethreearmclipssnapinto
place at the top of the adjustment knob. If the actuator was
turned with the adjustment knob off, recalibrate the control
according to the instructions in Recalibrate T104F Control
section.
6. Replace the end cap.
6. Replace the end cap.
6
2-3047
4