Systems may be purchased with a multi-unit sequencing option. This option allows up to 8 units to be linked together and operate in unison. Units will rotate based on alarm, based on a weekly schedule, and additional units may be set to assist if cooling loads exceed the expected level.
NOTE: New units are pre-addressed at the factory. Match the labeled displays with their appropriate units. You should not need to address the units in the field.
In order to address the displays and controllers, the following steps must be followed. Do not complete the interconnecting wiring connections between the units until all units have been addressed.
Controller Addressing
Display Addressing
After all of the controllers and displays have been addressed, connect the interconnecting wires between the units.
The following settings are set in the Technician Menu to govern the multi-unit sequence operation.
The controller and display must be addressed according to the following table to communicate.
Controller Address | Display Address |
---|---|
1 | 32 |
2 | 31 |
3 | 30 |
4 | 29 |
5 | 28 |
6 | 27 |
7 | 26 |
8 | 25 |