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Document No. 129-401
Installation Instructions
January 18, 2008
U 4
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Figure 5. AGA56.9...... Terminal and Trim Potentiometer Boards.
Commissioning
Manual Operation
1.
Set the AUTO/MAN switch in the MAN position.
2.
Connect ground to the screw located below the
shaft release button.
3.
Connect neutral to terminal N.
4.
Only terminal "L" must be powered to enable
manual operation. The actuator can now be driven
to the maximum (high fire) position (switch cam I) or
the fully closed "economy position" (switch cam II)
by using the toggle switch located to the left of the
AUTO/MAN switch.
Automatic Operation
1. Set the AUTO/MAN switch in the AUTO position.
2. Connect ground to the screw located below the shaft
release button.
3. Connect neutral to terminal N.
4. Connect line voltage at all times to terminal L to
provide power to the electronic circuit board.
5. Connect line voltage to terminal L1 to provide power
when modulating. Connect line voltage to Terminal
L1 only after removing power on terminals A and Z
(otherwise actuator damage may result).
6. Connect line voltage to terminal A to drive the
actuator to the maximum (high fire purge) position.
Once the maximum position is reached, terminal 11
(on switch I) will be energized to provide position
feedback.
7. Connect power to terminal ZL to drive the actuator to
the minimum (low-fire) position. Once the minimum
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Z L
OPE
M A X
M I N
MAN.
AUTO.
position is reached, terminal 23 (on switch III) will be
energized to provide position feedback. Adjustment
of switch III will determine the low-fire stop position.
Switch III (low fire) must be set at a higher position
than switch II (fully closed). Terminal ZL may be
energized only after removing power from terminals
A, Z, 13, and LR.
8.
Connect line voltage to terminal Z to drive the
actuator to the fully closed/economy position
(switch II).
9. Connect the input control signal wires to the
appropriate terminals. See Figure 4.
Modulation Adjustment
The blue trim potentiometers allow the adjustment of
the minimum (zero) and maximum (span) positions.
The factory setting of the MIN trim potentiometer is
rotated fully counter clockwise.
The factory setting of the MAX trim potentiometer is
rotated fully clockwise.
Zero Adjustment
Set the OPE/MAX/MIN slide switch to MIN (see
Figure 5). The blue MIN trim potentiometer can now
be gently adjusted to the required minimum position.
Return the OPE/MAX/MIN slide switch to OPE for
operation.
MAX
POS
MIN
3-POSITION
SWITCH
POT. METERS
AGA56.9A...
CAUTION:
Under no circumstances should terminals A
and Z be powered at the same time. Actuator
damage will occur.
Siemens Building Technologies, Inc.
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U1...U3
JUMPERS
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