Aprilaire 8800 - Temperature Control Commands

TEMPERATURE CONTROL COMMANDS
MODE, M
Control mode COS: C7
Permissions: Read/Write
Query
Command
Syntax: SN[#] MODE?<CR>
SN[#] M?<CR>
Description: Requests the control mode.
Assignment
Command
Syntax: SN[#] MODE=[value]<CR>
SN[#] M=[value]<CR>
Description: Sets the control mode to [value].
Examples: SN1 MODE=HEAT<CR>
SN1 M=A<CR>
Response or
COS Message
Syntax: SN[#] M=[value]<CR>
Description: The thermostat sends the control mode. The [value] parameter is always in the verbose format.
Example: SN1 M=COOL<CR>
Node address 1 responds with a control mode of Cool.
Parameters Range
value: control mode [OFF, O, HEAT, H, COOL, C, EMHT, E, AUTO, A, HUMID, DEHUM]
OFF, O: Off mode – Thermostat or Humidistat
HEAT, H: Heat mode – Thermostat
COOL, C: Cool mode – Thermostat
EMHT, E: Emergency heat mode (heat pump only) – Thermostat
AUTO, A: Auto mode – Thermostat or Humidistat
HUMID: Humidification – Humidistat
DEHUM: Dehumidification – Humidistat
The control mode can be changed through the Home Screens for thermostat control or through the Setup Screens for humidity control. If the
control mode is changed at the node, a C7 COS unsolicited message is issued (if C7 is ON).
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