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P/N 032498h

Description

This programming guide provides information on how to conﬁgure the HomeWorks QS Palladiom Thermostat and

HomeWorks QS Palladiom HVAC controller (SMC55-HWQS, SMC55-RESI). All the references made to SMC55-HWQS

throughout the document will apply to SMC55-RESI as well.

The HomeWorks QS Palladiom thermostat and SMC55-HWQS are a two-piece solution offered by Lutron to control HVAC

equipment. The thermostat provides the user interface and the SMC55-HWQS sends signals to control the HVAC equipment.

The SMC55-HWQS must be conﬁgured correctly to control the HVAC equipment. The thermostat can also connect to third-party

HVAC controllers, or be used as a Companion Thermostat, which is described in later sections.

WARNING

Shock Hazard - Improper conﬁguration can cause property damage, personal injury, or death. Installation and

service must be performed by a licensed professional HVAC installer (or equivalent) or service agency.

This guide illustrates multiple steps for conﬁguring the Palladiom thermostat and HVAC controller.

Step 1 illustrates how to identify the HVAC equipment and conﬁrm system compatibility.

Step 2 covers the equipment conﬁguration mode.

Step 3 explains the controller selection menu.

Step 4 details the basic parameters required to conﬁgure the SMC55-HWQS for compatibility.

Step 5 covers the details of the advanced parameters for the SMC55-HWQS which are used to modify the functionality of the

HVAC equipment. Advanced parameters are set to a default value and should only be changed if the system needs further

conﬁguration.

After conﬁguring both the basic and the advanced parameters, refer to Step 6 to verify the basic system functionality based

on the conﬁguration of the SMC55-HWQS.

Appendix A includes control diagrams to explain the On/Off deltas for heating and cooling stages.

Appendix B provides a worksheet which should be kept and used by the installer during installation. Before conﬁguring the

SMC55-HWQS, write the necessary values for the basic and advanced parameters in the allotted space.

Appendix C gives more details about the functionality of different buttons and user interface on the thermostat.

Lutron Electronics PALLADIOM User Manual

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