Design Technical Manual

Table Of Contents
FORCED THERMOSTAT OFF FUNCTION
Function setting Mode External input Input signal * Command
60-00, 02, 05, 06, 08 0, 2, 5, 6, 8
CNA03 or CNA04
(EX T.IN2)
OFF → ON EEV OFF
ON → OFF Normal operation
*Edge input only
Example of cooling mode
CNA03 or
CNA04
EEV
Room temp.
Set temp.
On
On
Off
Off
NOTE :
When the signal is received from another unit on the refrigerant circuit, there may be a
delay in thermostat off function at the unit.
z
Example 1
- In - line connection
- Function setting for Fan setting when cooling thermostat OFF
Number 49-00 (Follow the setting on the remote controller)
Forced thermostat off is one of the function to save energy. For example, case of outdoor
temperature is lower than Indoor temperature, Indoor unit of air conditioner worked as Fan
operation based upon receiving signal from external controller. (Cooling Only)
82˚F
(28˚C)
88˚F
(31˚C)
76°F
80°F
74°F
84°F
68°F
Away
Custom
Auto
Auto
Cool
Heat
Office
Set Temp.
Mode
MenuStatus
Vacation
Fan
Fri 10:00AM
Room Temp.
Cool
Heat
82˚F
(28˚C)
75˚F
(24˚C)
76°F
80°F
74°F
84°F
68°F
Away
Custom
Auto
Cool
Heat
Office
Set Temp.
Mode
Status
Vacation
Room Temp.
Cool
Heat
Cooling operation
(Thermostat on)
Fan operation
(Thermostat off)
External controller
Thermistor
Thermistor
Thermistor
Thermistor
Damper
Indoor
Temperature
Indoor
Temperature
Outdoor
Temperature
Outdoor
Temperature
- (08 - 18) -
EXTERNAL INPUT
& OUTPUT
EXTERNAL INPUT
& OUTPUT