Mitsubishi Heavy Industries MHI FDU71VNXVF1 Technical Manual page 50

②Remote Control, Wiring and functions
● DO NOT install it on the following places
①Places exposed to direct sunlight
②Places near heat devices
③High humidity places
④Hot surface or cold surface enough to generate condensation
⑤Places exposed to oil mist or steam directly.
⑥Uneven surface
Installation and wiring of remote control
①Install remote control referring to the attached installation manual.
②Wiring of remote control should use 0.3mm 2
The insulation thickness is 1mm or more. (on-site configuration)
③Maximum prolongation of remote control wiring is 600 m.
If the prolongation is over 100m, change to the size below.
But, wiring in the remote control case should be under 0.5mm
outside of the case according to wire connecting. Waterproof treatment is necessary at the
wire connecting section. Be careful about contact failure.
100 - 200m ........................ 0.5mm × 2 cores
2
Under 300m ....................... 0.75mm 2 × 2 cores
Under 400m ....................... 1.25mm 2 × 2 cores
Under 600m ....................... 2.0mm 2 × 2 cores
④Avoid using multi-core cables to prevent malfunction.
⑤Keep remote control line away from earth (frame or any metal of building).
⑥Make sure to connect remote control line to the remote control and terminal block of indoor unit.
(No polarity)
Control plural indoor units by a single remote control.
①A remote control can control plural indoor units (Up to 16).
In above setting, all plural indoor units will operate under same mode and temperature setting.
②Connect all indoor units with 2 core remote control line.
③Set unique remote control communication address from "0" to "F" to each inside unit by the
rotary switch SW2 on the indoor unit's PCB.
After a unit is energized, it is possible to display an indoor unit address by pressing
button on the remote control unit. Press the
AIR CON NO.
that all indoor units connected are displayed in order.
Indoor Unit (1) Indoor Unit (2)
Address "0" Address"1"
Remote control line (no polarity)
Remote control
Confirming method of indoor units
When indoor unit address number is displayed on remote control, pushing the
button to make the indoor unit with that number blow air (Display example:"
Push the (MODE) button again to stop the operation.
However, this operation is invalid on the air-conditioning running.
Master/ slave setting when more than one remote control unit are used
A maximum of two remote control units can be connected to one indoor unit (or one group of
indoor units.)
The air conditioner operation follows the last operation of the remote control regardless of the
master/slave setting of it.
Acceptable combination is "two (2) wired remote controls", "one (1) wired remote control and
one (1) wireless kit" or "two (2) wireless kits".
Set SW1 (wired remote control) or SW1-2 (wireless kit) to "Slave" for the slave remote control
unit. It was factory set to "Master" for shipment.
Note:The setting "Remote control unit sensor enabled" is only selectable with the master remote
control unit in the position where you want to check room temperature.
Wired remote control: SW1
Wireless kit: SW1-2
Indoor Unit
Remote control line
(no polarity)
Remote Remote
control control
"Master" "Slave"
×
2 core wires or cables.
2 . Change the wire size
or button to make sure
Indoor Unit (16)
Address"F"
(MODE)
")
Switch setting contents
Master
M
remote control
Slave
S
remote control
③Trial operation
The method of trial cooling operation
Operate the remote control unit as follows.
1. Starting a cooling test run.
①Start the system by pressing the
②Select " (Cool)" with the
③Press the button for 3 seconds or longer.
TEST
The screen display will switch to: "
④When the (SET) button is pressed while "
run will start.
The screen display will switch to "
2. Ending a cooling test run.
Pressing the button, the
cooling test run. (Cooling test run will end after 30 minutes pass.)
" " shown on the screen will go off.
Checking operation data
Operation data can be checked with remote
control unit operation.
1. Press the button.
The display change "
2. Press the (SET) button while
" " is displayed.
3.When only one indoor unit is connected
to remote control, "
displayed (blinking indication during data
loading).
Next, operation data of the indoor unit
will be displayed. Skip to step 7.
4. When plural indoor units is connected,
the smallest address number of indoor
unit among all connected indoor unit is
displayed.
[Example]:
" " (blinking 1 seconds)
" " blinking.
5. Select the indoor unit number you would
like to have data displayed with the
button.
6. Determine the indoor unit number with the
(SET) button.
(The indoor unit number changes from
blinking indication to continuous indication)
" " (The address of selected
indoor unit is blinking for 2 seconds.)
" " (A blinking indication appears while data loaded.)
Next, the operation data of the indoor unit is indicated.
7. Upon operation of the
data number 01.
The items displayed are in the above table.
※Depending on models, the items that do not have corresponding data are not displayed.
8. To display the data of a different indoor unit, press the
go back to the indoor unit selection screen.
9. Pressing the button will stop displaying data.
Pressing the (RESET) button during remote control unit operation will undo your last
operation and allow you to go back to the previous screen.
◎If two (2) remote controls are connected to one (1) inside unit, only the master control is available for
trial operation and confirmation of operation data. (The slave remote control is not available.)
Trail operation of drain pump
Drain pump operation from remote control unit is possible. Operate a remote control unit by
following the steps described below.
1. To start a forced drain pump operation.
①Press the TEST button for three seconds or longer.
The display will change "
②Press the button once and cause "
③When the (SET) button is pressed, a drain pump operation will start.
Display: " "
2. To cancel a drain pump operation.
①If either (SET) or
stop. The air conditioning system will become OFF.
◎If two (2) remote controls are connected to one (1) inside unit, only the master control is available for
trial operation and confirmation of operation data. (The slave remote control is not available.)
49
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'12 • PAC-T-178
button.
(MODE) button.
"
" is indicated, a cooling test
".
(TEMP) button or (MODE) button will end a
Number Data Item
01 (Ope ration Mode)
02 (Set Temperature)
" 03 (Return Air Temperature)
04 (Remote Control ThermistorTemperature)
05 (Indoor Unit Heat Exchanger Thermistor / U Bend)
06 (Indoor Unit Heat Exchanger Thermistor /Capillary)
07
(Indoor Unit Heat Exchanger Thermistor /Gas Header)
08 (Indoor Unit Fan Speed)
" is
09 (Frequency Requirements)
10
(Response Frequency)
11 (Pulse of Indoor Unit Expansion Value)
12 (Total Running Hours of The Indoor Unit)
21 (Outdoor Air Temperature)
22 (Outdoor Unit Heat Exchanger Thermistor)
23 (Outdoor Unit Heat Exchanger Thermistor)
24 (Compressor Frequency)
25
(High Pressure)
26 (Low Pressure)
27 (Discharge Pipe Temperature)
28
(Comp Bottom Temperature)
29 (Current)
30 (Target Super Heat)
31 (Super Heat)
32 (Discharge Pipe Super Heat)
33 (Protection State No. of The Compressor)
34 (Outdoor Unit Fan Speed)
35
(63H1 On/Off)
36 (Defrost Control On/Off)
37 (Total Running Hours of The Compressor)
38
(Pulse of The Outdoor Unit Expansion Valve EEVC)
39 (Pulse of The Outdoor Unit Expansion Valve EEVH)
※Depending on outdoor unit model, there are data not shown.
button, the current operation data is displayed in order from
button, which allows you to
"
" to be displayed.
button is pressed, a forced drain pump operation will