Design Technical Manual

Table Of Contents
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FRESH AIR CONDITIONER (FOR EXTERNAL CONTROL
MODULE*) INPUT FUNCTION (mode 1 or 7)
* Module that reduces or stops the cooling operating ratio of the air conditioner by intaking fresh air.
Example: Direct Digital Controller
Function setting Mode External input External output Input signal * Command
60-01, 07 1, 7
CNA03 or CNA04
(EX T.IN2)
[VRF cooling OFF]
CNB01
(PIN 1-2)
[Cooling
thermostat ON]
OFF → ON
EEV OFF
(VRF cooling
OFF)
ON → OFF Normal operation
*Edge input only
With using Fresh air conditioner input and Cooling thermostat ON output, External control
module controls the cooling operation by the VRF.
When Fresh air conditioner ON is input during Cooling thermostat ON, Fresh air conditioning
is performed with stopping the cooling operation by the air conditioner.
NOTE :
During operations other than cooling such as heating or dry, Fresh air conditioner ON
input is disable.
- (08 - 24) -
EXTERNAL INPUT
& OUTPUT
EXTERNAL INPUT
& OUTPUT