Mitsubishi Electric PAC-IF011B-E Manuel D'installation page 7

3. Electrical work
3.1.5. Connecting External Output
The signal in the following states can be output.
TB141 Item
1-2 (OUT1) Operation Output
X1
3-4 (OUT2) X2 Error Output
5-6 (OUT3) X3 Comp. Output
7-8 (OUT4) X4 Defrost Output
9-10 (OUT5) X5 Mode(Cool) Output
11-12 (OUT6) X6 Mode(Heat) Output
13-14 (OUT7)
–
Cable length : Maximum 50m
Output specification : Non-voltage switch 1A or less , 240V AC
*Connect the surge absorber according to the load at site.
Note : External output signals are separated by basic insulation from other circuit of
interface.
Caution : When 2 or more external outputs are used, the power supply on the output
side should be the same.
3.1.6. Wiring specification External output / External input
Locally supplied parts
Item Name
External output function External output signal wire Use sheathed vinyl coated cord or cable.
Display lamp, etc.
External input function External input signal wire
Switch
3.1.7. Switch setting
It is possible to set the following function by setting the switch of the interface controller.
• SW2-1/2-2 : Fixed operation mode
Details
SW2-1 SW2-2
Not FIX (Depending on Remote controller setting)
OFF OFF
[Cooling] FIX
ON OFF
[Heating]
OFF ON FIX
External input(
ON ON
• Setting temperature
• SW2-3/2-4/2-5 : Fixed set temperature [For Auto step mode only]
SW2-3 SW2-4 SW2-5 Details
OFF OFF OFF Not fixed (Remote controller setting)
ON OFF OFF Cooling 19 /Heating 17
OFF ON OFF 20
ON ON OFF 22
OFF OFF ON 24
ON OFF ON 26
OFF ON ON 28
ON ON ON
Cooling 30
Set switches in case of auto step mode.
3.1.8.Before test run
After completing installation and the wiring and piping of the local application and outdoor units, check for refrigerant leakage, looseness in the power supply or control
wiring, wrong polarity, and no disconnection of one phase in the supply.
Use a 500-volt megohmmeter to check that the resistance between the power supply terminals and ground is at least 1.0MΩ.
Warning:
Do not use the system if the insulation resistance is less than 1.0MΩ.
Caution:
Do not carry out this test on the control wiring (low voltage circuit) terminals.
OFF ON
OFF ON
Normal Error
OFF(Comp. OFF) ON
OFF ON
OFF ON
OFF ON
– –
X1 X2 X3 X4 X5 X6
I/F
1 2 3 4 5 6 7 8 9 10 11 12 13 14
At site
Model and specifications
Wire type : CV, CVS or equivalent.
Wire size : Stranded wire 0.5mm
Solid wire: {0.65mm to {1.2mm
Non-voltage Contact AC220-240V (DC30V), 1A or less
Use sheathed vinyl coated cord or cable.
Wire type : CV, CVS or equivalent.
Wire size : Stranded wire 0.5mm
Solid wire : {0.65mm to {1.2mm
Non-voltage "a" contact
TB142-3,4)
Depending on
FIX
FIX
FIX
FIX
FIX
FIX
/ Heating 28 FIX
(Comp. ON)
(Defrosting)
(Cooling)
(Heating)
–
TB141
to 1.25mm
2 2
to 1.25mm
2 2
Photo.3-6
TB141
7