Installation Manual

143
Lutron integration protocol
HVAC Command-specific fields (continued)
Action Numbers and Parameters (continued):
Action Action Number Parameters
Set (#) or Get (?) Call Status 14
0 = None, Last was Heat
1 = Heat Stage 1
2 = Heat Stage 1 and 2
3 = Heat Stage 1, 2, and 3
4 = Heat Stage 3
5 = None, Last was Cool
6 = Cool Stage 1
7 = Cool Stage 1 and 2
8 = Off
9 = Emergency Heat/Auxiliary Only
10 = Dry
Set (#) or Get (?) Current Temperature (°C)
1, 7
15 Temperature = 0 –100 °C
Set (#) or Get (?) Heat and Cool Setpoints
(°C)
2, 3, 5, 7
16
Setpoint Heat (SPH) = 0 – 100 °C
Setpoint Cool (SPC) = 0 – 100 °C
Get (?) Heat and Cool Setpoints (°C) without
Eco Offset if applied
2, 4, 7
17
Setpoint Heat (SPH) = 0 – 100 °C
Setpoint Cool (SPC) = 0 – 100 °C
NOTES
1. HomeWorks QS software version 4.1 and higher.
2. Changing the setpoint will turn Eco Mode off if it is currently on.
3. To leave a parameter unchanged, use “255” as the value for that parameter when sending the command.
4. HQWT-T-HW does not support Eco Mode.
5. For the HQWT-T-HW, this range depends on the programming in the database. The heat/cool setpoints increase or
decrease in increments of 0.5 °C.
6. If the thermostat is setup to use Fahrenheit, it is recommended to use Fahrenheit Integration command set. If it is setup
to use Celsius, it is recommended to use the Celsius Integration command set.
7. Allow for reported temperature values to be zero padded, with up to 3 digits before the decimal point, and 2 digits after.
– Possible reported values of 5 °C: “005”, “05”, “5”, “005.”, “005.”, “5.”, “005.0”, “05.0”, “5.0”, “005.00”, “05.00”, “5.00”
– Possible reported values of 5.5 °C: “005.5”, “05.5”, “5.5”, “005.50”, “05.50”, “5.50”
– Possible reported values of 21 °C: “021”, “21”, “021.0”, “21.0, “021.00,” “21.00”
– Possible reported values of 21.5 °C: “021.5”, “21.5”, “021.50”, “21.50”
Temperature Controls (continued)
HVAC Commands (continued)