Cnt 3; Output; Ventilation Output; Heater Output - Mitsubishi Heavy Industries FDTQ22KXE6F Technical Manual

2
XR1
CnT
3
XR2
Blue
4
12V XR3
5
XR4
6
XR5
■ Priority order for combinations of CnT and CnTA input.
■ Priority order for combinations of CnT and CnZ input.
CnT ①
① Operation stop level
① Operation stop level CnT ①
CnT ②
② Operation stop pulse
② Operation stop pulse CnT ②
③ Operation permission/prohibition level CnT ③ >CnTA ①
③ Operation permission/prohibition level CnT ③ > CnZ ① CnT ③ > CnZ ② CnT ③ + CnZ ③ CnT ③
④ Operation permission/prohibition pulse CnT ④
④ Operation permission/prohibition pulse CnT ④
CnT
CnT
⑤ Cooling/heating selection level CnT ⑤ /CnTA ①
⑤ Cooling/heating selection level CnT ⑤ / CnZ ①
⑥ Cooling/heating selection pulse CnT ⑥ /CnTA ①
⑥ Cooling/heating selection pulse CnT ⑥ / CnZ ①
CnT ⑦ >CnTA ① CnT ⑦ >CnTA ② CnT ⑦ >CnTA ③ CnT ⑦ >CnTA ④ CnT ⑦ /CnTA ⑤ CnT ⑦ /CnTA ⑥ CnT ⑦ +CnTA ⑦
⑦ Emergency stop
⑦ Emergency stop CnT ⑦ > CnZ ① CnT ⑦ > CnZ ② CnT ⑦ > CnZ ③ CnT ⑦ > CnZ ④ CnT ⑦ / CnZ ⑤ CnT ⑦ / CnZ ⑥ CnT ⑦ + CnZ ⑦
Note (1) Following operation commands are accepted when the operation prohibition is set with CnTA as indicated with *. Note (1) Following operation commands are accepted when the operation prohibition is set with CnZ as indicated with *.
Individual operation command from remote control, test run command from outdoor unit and operation command from option device, CnT input. Individual operation command from remote control, test run command from outdoor unit and operation command from option device, CnT input.
Reference: Explanation on the codes and the combinations of codes in the table above
1. In case of CnT "Number", the CnT "Number" is adopted and CnZ is invalidated.
2. In case of CnZ "Number", the CnZ "Number" is adopted and CnT is invalidated.
3. In case of CnT "Number"/CnZ "Number", the CnT "Number" and the CnZ "Number" become independent functions each other.
4. In case of CnT "Number" + CnZ "Number", the CnT "Number" and the CnZ "Number" become competing functions each other.
5. In case of CnT "Number" > CnZ "Number", the function of CnT "Number" supersedes that of CnZ "Number".
6. In case of CnT "Number" < CnZ "Number", the function of CnZ "Number" supersedes that of CnT "Number".
(The "Number" above means ① - ⑦ in the table.)
(a) Output for external control (remote display)
Indoor unit outputs the following signal for operation status monitoring.
Following output connectors (CnT) are provided on the indoor control PCB for monitoring operation status.
① Operation output: Outputs DC12V signal for driving relay during operation
Output name
② Heating output: Outputs DC12V signal for driving relay during heating operation
1 Operation output
③ Compressor ON output: Outputs DC12V signal for driving relay when compressor is operating.
2 Heating output
3 Thermostat ON output
④ Error output: Outputs DC12V signal for driving relay when anomalous condition occurs.
4

Inspection (Error) output

(b) Remote operation input
5 Cooling output
6 Fan operation output 1
Remote operation input connector (CnT-6 or CnTA) is provided on the indoor control PCB.
7 Fan operation output 2
However remote operation by CnT-6 or CnTA is not effective, when "Center mode" is selected by central control.
8 Fan operation output 3
Only the "LEVEL INPUT" is acceptable for external input, however when the indoor function setting of "Level
9 Defrost/oil return output
input (Factory default)" or "Pulse input" is selected by the function for "External input" of the wired remote control,

10 Ventilation output

11 Free cooling output
operation status will be changed as follows.
12 Indoor unit overload alrm output

13 Heater output

(b) Input for external control
The external input for the indoor unit can be selected from the following input by the wired remote control.
The input connectors (CnT-6 and CnZ) are equipped on the indoor unit control PCB.
"LEVEL INPUT(Factory default)" or "PULSE INPUT" is selectable from the wired remote control.
Input name
1 Run/Stop (Factory default)
2 Permission/Prohibition
3 Cooling/Heating
4 Emergency stop
5 Setting temperature shift
6 Forced thermo-OFF
7

Temporary stop

8

Silent mode

(c) Remote operation input
The indoor unit operation can be controlled by external input.
However it is not effective when "Center mode" is selected by central control.
Only the "LEVEL INPUT" is recommended for this input, and operation status is changed as follows.
White
2
12V
XR6
① Operation ② Operation ③ Operation
① Operation ② Operation ③ Operation
stop level stop pulse permission/prohibition
stop level stop pulse permission/prohibition
CnT ① CnT ① +CnTA ②
CnT ① + CnZ ② CnT ① + CnZ ② CnT ①
CnT ② CnT ② +CnTA ③
CnT ② + CnZ ② CnT ② + CnZ ③ CnT ②
CnT ③ >CnTA ② CnT ③ +CnTA ③
CnT ④ CnT ④ +CnTA ③※
CnT ④ CnT ④ + CnZ ③※
CnT ⑤ /CnTA ② CnT ⑤ /CnTA ③※
CnT ⑤ / CnZ ② CnT ⑤ / CnZ ③ CnT ⑤ / CnZ ④ CnT ⑤
CnT ⑥ /CnTA ② CnT ⑥ /CnTA ③
CnT ⑥ / CnZ ② CnT ⑥ / CnZ ③ CnT ⑥ / CnZ ④ CnT ⑥
During operation
During heating operation
During compressor operation
When anomalous condition occurs.
During cooling operation
When indoor unit's fan is operating
When indoor unit's fan is operating, and fan speed is higher than Hi speed.
When indoor unit's fan is operating, and fan speed is Lower than Me speed.
When indoor unit receive defrost/oil return signal from the outdoor unit.
When "Venti.ON" is selected from remote control
When the ambient temp. is between 10-18 ℃ in cooling and fan operation
Refer to "IU overload alarm"
Refer to "(8) Thermostat operation (b) Heating"
127
-
Refer to [(19) (c) Remote operation input]
Refer to [(20) Operation permission/prohibition]
Refer to [(22) Selection of cooling/heating external input function]
Refer to [(23) Emergency stop input]
Set temperature is shifted by +2/-2 ℃ in cooling/heating.
Unit goes thermo off.
Refer to [(21) Temporary stop input]
Outdoor unit silent mode is activated.
-
CnZ
CnTA
④ Operation ⑤ Cooling/heating
④ Operation ⑤ Cooling/heating
permission/prohibition pulse selection level
permission/prohibition pulse selection level
CnT ① CnT ① /CnTA ⑤
CnT ① / CnZ ⑤ CnT ① / CnZ ⑥ CnT ① < CnZ ⑦
CnT ② CnT ② /CnTA ⑤
CnT ② / CnZ ⑤ CnT ② / CnZ ⑥ CnT ② < CnZ ⑦
CnT ③ CnT ③ /CnTA ⑤
CnT ③ / CnZ ⑤ CnT ③ / CnZ ⑥ CnT ③ < CnZ ⑦
CnT ④ CnT ④ /CnTA ⑤
CnT ④ CnT ④ / CnZ ⑤ CnT ④ / CnZ ⑥ CnT ④ < CnZ ⑦
CnT ⑤ /CnTA ④ CnT ⑤
CnT ⑥ /CnTA ④ CnT ⑥
Condition
-
Content
92
-
'20 • KX-T-347
⑥ Cooling/heating ⑦ Emergency
⑥ Cooling/heating ⑦ Emergency
selection pulse stop
selection pulse stop
CnT ① /CnTA ⑥ CnT ① <CnTA ⑦
CnT ② /CnTA ⑥ CnT ② <CnTA ⑦
CnT ③ /CnTA ⑥ CnT ③ <CnTA ⑦
CnT ④ /CnTA ⑥ CnT ④ <CnTA ⑦
CnT ⑤ CnT ⑤ /CnTA ⑦
CnT ⑤ CnT ⑤ / CnZ ⑦
CnT ⑥ CnT ⑥ /CnTA ⑦
CnT ⑥ CnT ⑥ / CnZ ⑦