LG PQDSBC1 Manual De Propietario
8
Dry Contact for Economizer
Due to our policy of continuous product innovation, some specifications may change without notification.
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Connect Input Signal Cables
The input signal cables connect to the three connection terminal strip on the dry contact PCB. Refer to Figure 1. item 4. There are two possible
configurations, with external power and without. Refer to your organizations installation documents for this location to determine which one to use.
Turn the power off at the nearest disconnect before installing or servicing the equipment.
Electrical shock may cause physical injury or death.
Ensure the CHANGE_OVER_SW is positioned correctly for your application.
If voltage is applied when the CHANGE_OVER_SW is positioned to NON VOLT, the dry contact will be damaged.
1. For the no external power application, position the CHANGE_OVER_SW slide switch to NON VOLT
2. Connect the signal wires as shown in Figure 5.
3. For the external power application, position the CHANGE_OVER_SW slide switch to VOLT.
4. Connect the signal wires as shown in Figure 6.
5. If additional wiring or configuration are required, continue to the following procedures.
6. If you are finished wiring and configuring the dry contact, reapply IDU power, press the dry contact reset switch (Figure 1, item 11), and
1. For the no external power application, position the CHANGE_OVER_SW slide switch to NON VOLT
2. Connect the signal wires as shown in Figure 5.
3. For the external power application, position the CHANGE_OVER_SW slide switch to VOLT.
4. Connect the signal wires as shown in Figure 6.
5. If additional wiring or configuration are required, continue to the following procedures.
6. If you are finished wiring and configuring the dry contact, reapply IDU power, press the dry contact reset switch (Figure 1, item 11), and
reinstall the dry contact front cover.
Figure 5: Input Signal Cables with No Power Option
Field Supplied
Components
NOT
USED
Figure 6: Input Signal Cables with Power Option
Field Supplied
Components
NOT
USED
INSTALLATION