Electric Air Cleaner; Troubleshooting - Goodman MBVC 1 Series Installation Instructions Manual

Electric Air Cleaner

The control is equipped with an Accessory Relay and a pair of ¼ inch
accessory terminals which is normally open, labeled EAC-IN and
EAC-OUT (see accessory contacts graphic). The Accessory Relay is
configured to close anytime the blower is running. A closed relay
means the two terminals will have continuity between them (the
control does not energize these contacts). It is recommended to
utilize 24VAC with these terminals and limit the current to 1A.
Figure 17

Troubleshooting

Electrostatic Discharge (ESD) Precautions
NOTE: Discharge body's static electricity before touching unit. An
electrostatic discharge can adversely affect electrical components.
Use the following precautions during modular blower installation
and servicing to protect the integrated control module from dam-
age. By putting the modular blower, the control, and the person
at the same electrostatic potential, these steps will help avoid
exposing the integrated control module to electrostatic discharge.
This procedure is applicable to both installed and uninstalled (un-
grounded) blowers.
1. Disconnect all power to the blower. Do not touch the
integrated control module or any wire connected to the
control prior to discharging your body's electrostatic charge
to ground.
2. Firmly touch a clean, unpainted, metal surface of the
modular blower near the control. Any tools held in a
person's hand during grounding will be discharged.
3. Service integrated control module or connecting wiring
following the discharge process in step 2. Use caution not
to recharge your body with static electricity; (i.e., do not
move or shuffle your feet, do not touch ungrounded objects,
etc.). If you come in contact with an ungrounded object,
repeat step 2 before touching control or wires.
4. Discharge your body to ground before removing a new
control from its container. Follow steps 1 through 3 if
installing the control on a blower. Return any old or new
controls to their containers before touching any ungrounded
object.
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