Installation Manual

126
Lutron® integration protocol
HVAC Controller: HVAC Commands
HVAC Command-specific fields
Action Numbers and Parameters:
Action Action Number Parameters
Get Current Temperature 1 Temperature = 40 - 100
Set or Get Heat and Cool Setpoints 2 Heat Setpoint =40 - 103
Cool Setpoint = 50 - 113
Set or Get Operating Mode 3 Mode (1=Off 2=Heat 3=Cool 4=Auto
5=Em.Heat)
Set or Get Fan Mode 4 Mode (1=Auto 2= On)
Set or Get Eco (Setback) Mode 5 Mode (1=Off 2=On)
Get Eco Offset 6 Eco Offset = 1-11
Set or Get Schedule Override (Hold) 7 Hold (1=Enabled 2=Disabled)
Get Temp. Sensor Connection
Status
8 1 = All sensors are active
2 = Missing Sensor
3 = Wired Sensor Only
4 = No Sensor
Get Schedule Event 9 Schedule # (1-7), Event # (1-4), HH,MM,
SPC, SPH
Get Schedule-Day Assignment 10 Schedule#(1-7), DD(Bitmap:Sunday(Bit 0)-
Saturday(Bit 6) 1-active day, 0- inactive
day)
Example HVAC Commands
Operation Command String
Execute: #HVAC, Integration ID, Action Number, Parameters
Set Heat Setpoint to 68°F and Cool Setpoint to 72°F #HVAC,1,2,68,72<CR><LF>
Set System Mode to Cool #HVAC,1,3,3<CR><LF>
Turn Eco Mode On #HVAC,1,5,2<CR><LF>
Query: ?HVAC, Integration ID, Action Number
What is the Current Temperature? ?HVAC,1,1<CR><LF>
What is are the settings for Schedule 1, Event 2? ?HVAC,1,9,1,2<CR><LF>
What days are running Schedule 1? ?HVAC,1,10,1<CR><LF>
Response: ~HVAC, Integration ID, Action Number, Parameters
Current Temperature is 70°F. ~HVAC,1,1,70<CR><LF>
Schedule 1, Event 2 starts at 8:00am with
SPC=78,SPC=65
~HVAC,1,9,1,2,08,00,78,65<CR><LF>
Schedule 1 is being run on Monday and Tuesday ~HVAC,1,10,1,06<CR><LF>