Idex HALE MIV 2.0 User Manual

33
Table 5. Hale MIV System Level SCR Table – CONTINUED
SYMPTOM
CAUSE
REMEDY
Wire shorted out
Check wiring for abrasion, cuts
and wear. Repair as necessary.
Lights stay lit; does not change to
green or red when valve is either
fully open or closed (on MIV-E
turning the manual override
handwheel a slight amount
changes light)
Mechanical stop(s) improperly
adjusted
Adjust mechanical stop(s) for
proper operation.
MIV-E manual override hand-
wheel only needs to be turned a
slight amount and light changes.
Improperly installed switch(es). Re-
fer to “Switch Replacement”
Incorrectly wired switch(es)
MIV control harness is wired back-
wards to the gearmotor assembly.
4.4.1 General Testing MIV-E Valves for Proper Operation
The following is a test to determine if the MIV-E valve is operating correctly electrically.
1. The limit switches stop the rotation and therefore the position of the butterfly disc.
NOTE
THE MECHANICAL STOPS MUST NOT STOP THE ROTATION OF THE MIV-E WHEN
OPERATED ELECTRICALLY.
2. Carefully operate the valve using panel toggle switch. Watch indicator on top of gearbox. If
valve is operating properly the valve will stop rotating when the indicator is close to legend
on gearbox.
3. If valve continues to rotate past legend by about 1/4 inch STOP. Try operating valve in op-
posite direction, valve should not operate if over-travel (indicator moving past legend) oc-
curred.
4. Manually turn valve back in opposite direction until indicator light illuminates.
5. Carefully operate the valve in the opposite direction using panel toggle switch and repeat
steps 2 and 3 above.
6. If the valve operated properly in both directions, the valve works correctly electrically.
If valve did not operate properly in both directions a check of the electrical wiring will be neces-
sary. It is most likely the “+” and “-” voltages are reversed. Pay close attention to the switch wir-
ing on the panel placard, the gearmotor terminals or wiring at the micro switches.
7. Operate the valve open then closed. See that motor stops, the red indicator on the rocker
switch is lit and the valve disc is in the closed position.
8. Tighten the switch cap until it just touches the segment gear, then back out ½ to ¾ turn.
Lock in place with locknut.
9. Operate the valve open then closed. See that the motor stops electrically and not against
the mechanical stop. When the motor stops operating, the handwheel should be able to
rotate about ¾ turn before stopping against mechanical stop. If not, back out switch cap
another ¼ turn and repeat step.
10. Operate the valve to the open position. See that motor stops, the green lamp is lit and
valve disc is in the open position.

Idex HALE MIV 2.0 Specifications

General

Brand	Idex
Model	HALE MIV 2.0
Category	Control Unit
Language	English