Trane 4TXM2318BF300AA User Manual

109
6.4 Indoor unit Function
Sign Denition
Indoor Outdoor
Tai Tc1 Tc2 Tm Tao Toci Tc Te Ts Td
Ambient
Temp
Outlet
Pipe
Temp.
Inlet Pipe
Temp
Mid Coil
Temp
Ambient
Temp
Thick Pipe
of Heat
Exchanger
Mid
Condenser
Temp.
Defrost
Temp
Compressor
Suction
Temp.
Compressor
Discharging
Temp.
Tcomp1,2 Tset
Temp. Compensation
Set
Temp.
Dry Operation
Tai
＜
16
o
C, indoor unit stops running and sends stop-unit signal to outdoor.
Tai≤Tset, indoor motor runs at low speed and sends stop-unit signal to outdoor
Fan Operation
Indoor fan motor will run as the fan speed set on the remote controller or the wired controller and indoor unit will
send the stop-unit signal to outdoor.
Auto Operation
A: If the unit enters Auto mode for the rst time, the system will adjust the operation mode according to the room
temp. and the set temp.
When Tai ≥ Tset, entering auto cooling mode;
When Tai
＜
Tset, entering auto heating mode.
B: Auto cooling mode is as the same as the cooling mode. After the thermostat is OFF for 15 minutes, if Tai+
1+Tcomp2
＜
Tset, the unit will enter auto heating mode, or the unit will still stay at auto cooling mode and stop
when it reaches the set temperature; while the indoor motor will be at low speed.
C: Auto heating mode is as the same as the heating mode. After the thermostat is OFF for 15 minutes, if Tai≥Tset+1
+Tcomp1, the unit will enter auto cooling mode, or the unit will still stay at auto heating mode;
D: In this mode, the Sleep function is available, run as cooling sleep in cooling mode and as heating sleep in
heating mode. Once sleep mode is set, the mode will not change after the unit stops for 15 minutes when it arrives
Tset.
E: Mode conversion will be conrmed after compressor has stopped for 10 minutes.
Abnormal Operation
A: When outdoor modes from the request of indoor unit conict, the one entering rstly will take priority.
B: After indoor receives the ON command from wired controller, it will rstly conrm the outdoor current operation
mode. If they are the same modes, indoor unit will run as the request of remote controller. If they are di󰀨erent
modes, the system will forbid to operate, and indoor will keep the OFF mode and send the “standby” signal to wired
controller until outdoor stops or outdoor mode the requested mode of wired controller are the same, the unit will run
as the requested mode of wired controller.
C: After indoor receives the ON command from remote controller, it will rstly conrm the outdoor current operation
mode. If they are the same mode, indoor unit will run as the request of remote controller. If they are di󰀨erent modes,
the system will forbid to operate, and indoor will keep the OFF mode. After setting on remote controller, if the buzzer
sounds two times, that shows abnormal operation. Indoor will run until the outdoor mode and the requested mode
of remote controller are the same.
D: In AUTO mode, when the indoor unit occurs abnormal operation, the indoor unit will keep OFF state, and the
buzzer will not sound until the outdoor mode and the requested mode of indoor unit are the same.
F: COOL (included AUTO COOL), DRY, FAN are not abnormal mode.
G: HEAT and FAN are not abnormal mode.

Trane 4TXM2318BF300AA Specifications

General

Brand	Trane
Model	4TXM2318BF300AA
Category	Air Conditioner
Language	English