15
START-UP
Follow the procedure in Table 3 to check the EconoMi$er2 system
when the unit is started.
NOTE: Check that the transformer(s) are sized properly. If a common
transformer is used, make sure that polarity is observed on the
secondary. This means connect all No. 1 wires to one leg of the
transformer and all No. 2 wires to the other leg of the transformer. If
multiple transformers are used with one control signal, make sure all
No. 1 wires are tied together and tied to control signal negative (-).
Controllers and actuators must have separate 24 vac/vdc power
sources.
Table 3 — EconoMi$er2 Start-Up and Checkout
STEP
PROCEDURE
EXPECTED RESPONSE
ECONOMI$ER2 RESPONDS
CORRECTLY
ECONOMI$ER2 RESPONDS
INCORRECTLY
1
Remove power reset actuator.
Re-apply power.
Apply control signal to actuator.
Actuator will move to its
“Control Signal” position.
Actuator operates properly.
Step 8
No response at all
Step 2
Operation is reversed
Step 3
Does not drive toward “Control
Signal” Position
Step 4
2
Check power wiring. Correct any
problems. See Note
Power supply rating should be
the total power
requirement of the actuator(s).
Minimum voltage of 19.2 vac or
21.6 vdc.
Power wiring corrected,
actuator begins to drive
Step 1
Power wiring corrected, actuator
still does not drive
Step 4
3
Turning reversing switch to the
correct position. Make sure the
switch is turned all the way left or
right.
Actuator will move to its
“Control Signal” position.
Actuator operates properly
Step 8
Does not drive toward “Control
Signal” Position
Step 4
4
Make sure the control signal
positive (+) is connected to Wire
No. 3 and control signal negative
(-) is connected to Wire No. 1.
Most control problems are
caused by reversing these two
wires. Verify that the reversing
switch is all the CCW or CW.
Drives to “Control Signal”
position
Actuator operates properly
Step 8
Step 5
5
Check input signal with a digital
volt meter (DVM). Make sure the
input is within the range of the
actuator (2 to 10 vdc or 4 to 20
mA). NOTE: The input signal
must be above the 2vdc or 4 mA
to have the actuator move.
Input voltage or current
should be ± 1% of what
controller’s adjustment or
programming indicate.
Controller output
(actuator input) is
correct Input Polarity
Correct
Step 6
Reprogram, adjust, repair or
replace controller as needed.
Step 1
6
Loosen the nuts on the V-bolt
and move the damper by hand
from fully closed to fully open.
Damper will go from fully
closed to fully open
Damper moves properly.
Step 7
Find cause of damper jam and
repair.
Move damper back to fully
closed position and tighten the
nuts.
Step 1
7
Check damper torque
requirement.
Torque requirement is
actuator’s minimum torque.
Defective Actuator
Replace Actuator
Recalculate actuator
requirement
and correct installation
8
Actuator works properly. Test
controller by following controller
manufacturer’s instructions.
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