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SmartCommand Thermostat
Installation Manual
38
Network variables
Table 4 shows the network variables for use with the system variable, SVx command.
The system type, fan type, and changeover type variables are determined by the controller DIP switch SW1
setting. They can be viewed by the system variable command, but cannot be changed from the network.
Table 4. Network variables
Variable
number Name Variable data Default value Notes
1 System type 0, 1 0 0 = gas/electric, 1 = heat pump
2 Fan type 0, 1 0 0 = gas (no fan w/heat), 1 = electric
3 Changeover type 0, 1 0 0 = c/o w/cool, 1 = c/o w/heat
4 C/F type 0, 1 0 0 = Centigrade, 1 = Fahrenheit
5 Network address 1 to 254 1 Reserved: 0 = host, 255 = global
9 Display lock 0, 1 0 0 = unlocked, 1 = locked
10 MOT 5 to 9 minutes 6 minutes 0 = 20-second test time
11 MRT 0 to 9 minutes 6 minutes 0 = 20-second test time
12 H delta stage 1 on 0 to 8 degrees 1 degree
14 H delta stage 2 on 0 to 8 degrees 3 degrees
16 H delta stage 3 on 0 to 8 degrees 5 degrees
18 C delta stage 1 on 0 to 8 degrees 1 degree
20 C delta stage 2 on 0 to 8 degrees 3 degrees
24 Setpoint h/c delta 3 to 15 degrees 4 degrees Minimum delta T between h/c setpoints
69 Service (test) mode 0, 1 0 1 = test mode, sets MRT/MOT = 20 seconds
74 Autosend mode 0, 1 0 0 = off, 1 = on, send temp/mode on change