Mitsubishi Heavy Industries SRK63ZR-S Technical Manual page 26

○ To remove, pull up the panel to the position shown in
right illustration and pull it toward you.
○ To install, insert the panel arm into the slot on the front
panel from the position shown in right illustration, hold
the panel at both ends of lower part, lower it downward
slowly, then push it slightly until the latch works.
ELECTRICAL WIRING WORK
○ In case of faulty wiring connection,
Preparation of indoor unit
indoor unit does not operate. Then,
run lamp turns on and timer lamp
Mounting of connecting wires blinks.
1 Open the air inlet panel.
Use cables for interconnection wiring to avoid loosening of the wires.
Remove the lid.
2
CENELEC code for cables Required field cables.
3 Remove the wiring clamp.
Connect the connecting wire securely to the terminal block.
4 H05RNR4G1.5 (example) or 245IEC57
1) Connect the connection wire securely to the terminal H Harmonized cable type
block. If the wire is not affixed completely, contact will be 05 300/500 volts
R Natural-and/or synth, rubber wire insulation
poor, and it is dangerous as the terminal block may heat
N Polychloroprene rubber conductors insulation
up and catch fire.
R Stranded core
2) Take care not to confuse the terminal numbers for indoor
4or5 Number of conductors
and outdoor connections.
G One conductor of the cable is the earth conductor
5
Fix the connecting wire by wiring clamp.
(yellow/green)
6 Attach the lid.
1.5 Section of copper wire (mm
7 Close the air inlet panel.
INSTALLATION OF WIRELESS REMOTE CONTROL
Mounting method of battery
○ Uncover the wireless remote control, and mount the batteries [R03 (AAA, Micro),
×2 pieces] in the body regularly.
(Fit the poles with the indication marks, + & − without fail)
○ Do not use new and old batteries
6 Battery
together.
Cover
HOW TO RELOCATE OR DISPOSE OF THE UNIT
○ In order to protect the environment, be sure to pump down (recovery of refrigerant).
○ Pump down is the method of recovering refrigerant from the indoor unit to the outdoor
unit when the pipes are removed from the unit.
<How to pump down>
Connect charge hose to check joint of outdoor unit.
1
2 Liquid side : Close the liquid valve with hexagon wrench key.
Gas side : Fully open the gas valve.
Carry out cooling operation. (If indoor temperature is low, operate
forced cooling operation.)
3 After low pressure gauge become 0.01MPa, stop cooling operation
and close the gas valve.
INSTALLATION TEST CHECK POINTS
After installation
The power source voltage is correct as the rating.
No gas leaks from the joints of the service valve.
Power cables and crossover wires are securely fixed to
the terminal board.
Approx. 80°
To remove / To install
Terminal block
Wiring
Clamp
2 ) • Earth wire shall be Yellow/Green (Y/G) in color and longer than other AC wires for safety reason.
Fixing to pillar or wall
○ Conventionally, operate the wireless remote control
by holding in your hand.
○ Avoid installing it on a clay wall etc.
2
Wireless remote control
5 Wood screws
ø3.5 X 16
• Forced cooling operation
source source
Turn off power . Turn on power again after a while. Then, press the
ON/OFF button continuously for at least 5 seconds. (The operation will start.)
Unit ON/OFF button
Check the following points again after completion of the installation, and before turning on the power. Conduct a test run again and ensure that the unit operates properly.
At the same time, explain to the customer how to use the unit and how to take care of the unit following the user's manual.
The screw of the lid is tightened securely.
Service valve is fully open.
The pipe joints for indoor and outdoor pipes
have been insulated.
○ Installing
Remove the air filter.
1
2 Cover the unit with the front panel.
3 Tighten the 8 screws to fix the
Screw
front panel.
4 Install the air filter.
5 Install the air inlet panel.
The screw of the lid is
tightened securely
Lid
Connecting wire
• Pass the connecting wire through the path from
the bottom of the control box to the front part as
shown in the illustration.
INSTALLING TWO AIR-CONDITIONERS IN THE SAME ROOM
When two air-conditioners are installed in the same room, use this setting when the two air-conditioners are not operated with one
wireless remote control. Set the wireless remote control and indoor unit.
Setting the wireless remote control Setting an indoor unit
1
Pull out the cover and take out Turn off the power source, and turn it on after
1
batteries. 1 minute.
Disconnect the
2 2 Point the wireless remote control that was set
switching line according to the procedure described on the
next to the
left side at the indoor unit and send a signal by
battery with pressing the ACL switch on the wireless remote control.
wire cutters.
Since the signal is sent in about 6 seconds after the ACL switch is
pressed, point the wireless remote control at the indoor unit for some time.
3 Check that the reception buzzer sound "pip" is emitted from the
Disconnect
indoor unit.
At completion of the setting, the indoor unit emits a buzzer sound
3 Insert batteries. Close the cover.
"pip". (If no reception tone is emitted, start the setting from the
beginning again.)
TERMINAL CONNECTION FOR AN INTERFACE
1 Remove the air inlet panel, lid and front panel.
Remove the control cover. (Remove the screw.)
2
3 There is a terminal (respectively marked with CNS) for the indoor control board.
In connecting an interface, connect to the respective terminal securely with the connection harness
supplied with an option " Interface connection kit SC-BIKN-E " and fasten the connection harness
onto the indoor control box with the clamp supplied with the kit.
For more details, refer to the user's manual of your " Interface connection kit SC-BIKN-E ".
Test run
Air-conditioning operation is normal. The wireless remote control is normal.
No abnormal noise. Operation of the unit has been explained to the customer. (Three-minutes restart preventive timer)
Water drains smoothly. When the air-conditioner is restarted or when changing the operation, the unit will not start operating for
Protective functions are not working. approximately 3 minutes. This is to protect the unit and it is not a malfunction.
Front panel
Installing the air-cleaning filters
Open the air inlet panel and remove the air filters.
1
Install the air-cleaning filter in the filter holders, and then install the filter
2
holders in the air-conditioner.
• Each air-cleaning filter can be installed in the left or right filter holder.
3 Install the air filters and close the inlet panel.
Air-cleaning
filter
Filter holder
Reception
pip
Control cover
Indoor unit PCB
screw
CNS terminal