LUTRON 653 Right Thermostat Control Datasheet
Application Note #653
Identifying HVAC Equipment (continued)
Locate the HVAC Equipment Installation Manual (continued)
Control wiring is normally found later in the installation manual. The installation manual will demonstrate how to connect
the equipment to indoor thermostats. The connections that the thermostat requires will indicate the potential for a Lutron
thermostat control to be used as an alternative in the same application. The wire connections will also reveal if the system
uses a proprietary communication protocol between the controls and the HVAC equipment. If this is the case, the use of any
Lutron or third-party alternative is ruled out. See below for examples of connection diagrams in installation manuals.
Figure 2 displays typical thermostat connections from the HVAC equipment to the control.
Figure 2 - Example Wiring Diagrams (standard)
Figure 3 shows an example of an air conditioner/heat pump that has the capability of using a proprietary communication
protocol between the HVAC equipment and a special control unit. Since this uses a proprietary communication protocol
over terminal D, the Lutron thermostat control would not be able to control this application directly. In some cases, as with
the equipment featured below, an auxiliary device can be added for the implementation of standard 24 V-, non-proprietary
controls such as Lutron thermostats. It is important to determine if this is the case before proceeding and it will often be
noted in the installation manual for the HVAC equipment.
Figure 3 - Example Wiring Diagram (proprietary, not compatible)
Continued on next page...
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| General | Details |
|---|---|
| Name | LUTRON 653 Right Thermostat Control Datasheet |
| Make | Lutron |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.5 MB |
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