Aprilaire 8800 - Page 10

EXTFAN
Extended fan control configurations COS: N/A
Permissions: Read/Write
Query
Command
Syntax: SN[#] EXTFAN?<CR>
Description: Requests the heat and cool extended fan configurations.
Assignment
Command
Syntax: SN[#] EXTFAN=[x][y]<CR>
Description: Sets the heat extended fan based on [x] and cool extended fan [y].
Example: SN EXTFAN=01<CR>
Response Syntax: SN[#] EXTFAN=[x][y]<CR>
Example: SN1 EXTFAN=00<CR>
Node address 1 responds with both extended fan configurations disabled.
Parameters Range
x: extended fan in heating code [0 – 1]
y: extended fan in cooling code [0 – 1]
0: disabled
1: enabled
This command is ignored if the controller type is set to humidistat.
INTEGRAL
PI control integral factor period COS: N/A
Permissions: Read/Write
Query
Command
Syntax: SN[#] INTEGRAL?<CR>
Description: Requests the integral factor period setting.
Assignment
Command
Syntax: SN[#] INTEGRAL=[value]<CR>
Description: Sets the integral factor period to [value] minutes.
Examples: SN1 INTEGRAL=2<CR>
SN2 INTEGRAL=OFF<CR>
Response Syntax: SN[#] INTEGRAL=[value]<CR>
Example: SN1 INTEGRAL=4<CR>
Node address 1 responds with an integral factor period of 4 minutes.
Parameters Range
value: integral factor period in minutes [OFF, 1 – 5]
Default: 2
This command is ignored if the controller type is set to humidistat.
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