Thermostat Z-Wave Specification
June 26, 2019
Building 36 Technologies
An Alarm.com Company
7
5
Configuration Command Class
Temperature parameters take the form of 4-byte Z-Wave temperature commands where byte 1
is the (precision|scale|size) and bytes 2 and 3 are the 16-bit signed temperature value. Byte 4
is unused. The thermostat will format temperature reports with the same scale as the
thermostat display temperature units. If the temperature value is 0xFFFF (e.g. 0x2AFFFF00)
the parameter is disabled.
5.1
Parameters
5.1.1
0x01 : HVAC Type (normal | heat pump)
•
0x00 - Normal (DEFAULT)
•
0x01 - Heat Pump
•
Size 1 byte
5.1.2
0x02 : Number of Heat Stages / Auxiliary Heat Stages (0 | 1 | 2 | 3)
•
Default 2
•
Size 1 byte
5.1.3
0x03 : Number of Cool Stages / Heat Pump Stages (0 | 1 | 2)
•
Default 2
•
Size 1 byte
5.1.4
0x04 : Heat Fuel Type (Fossil | Electric)
•
0x00 - Fossil
•
0x01
–
Electric (DEFAULT)
•
Size 1 byte
5.1.5
0x05 : Calibration Temperature (-10°F to 10°F), 1°F increments
•
Default 0°F
•
Size 4 bytes
5.1.6
0x06 : Swing (0.0°F to 3°F), 0.5°F increments
•
Default 0.5°F
•
Size 4 bytes
5.1.7
0x07 : Overshoot (0.0°F to 3°F), 0.5°F increments
•
Default is 0.0°F
•
Size 4 bytes
