Mitsubishi Heavy Industries SRK60ZJX-S, Technical Manual

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79
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'10 • SR-T-091
Keep the openings of the pipes covered with tapes etc. to prevent dust, sand, etc.
from entering them.
○
○
Secure using upper 2 screws for floor installations.
If possible, also attach two lower screws.
At first secure the installation board using 5 screws and the indoor unit using 2 screws.
(860)
103.5
726
30.5
25.5
58
5
5
58
5
59
5
(6
00
)
30.5
(23
8)
19
8
18
5
If there is an obstacle such as a cable cover,
cut off the hatched part before installation.
Installation of Installation board
Look for the inside wall structures (Intersediats
support or pillar and finally install the unit after level
surface has been checked.)
Fixing on concrete wall
Use of nut anchor
Installation
board
Bolt
(M6 12)

Adjustment of the installation board in the horizontal
direction is to be conducted with five screws in a temporary
tightened state.

When practicing the half-console, make sure to fix the unit securely.
Otherwise, it could fall.

Adjust so the board will be level by turning the board with
the standard hole as the center.
Standard hole
Latch
Latch
155
45
105
130
140
C
RFB012A002A
CONNECTION OF REFRIGERANT PIPINGS
ELECTRICAL WIRING WORK
INSTALLATION TEST CHECK POINTS
HOW TO RELOCATE OR DISPOSE OF THE UNIT
CONCERNING TERMINAL CONNECTION
FOR AN INTERFACE
Preparation
Indoor (Do not turn)
Press
Remove
A
90 ± 0.5°
Dimension A
Liquid side ø6.35:9.1(mm)
Gas side ø9.52:13.2(mm)
ø12.7:16.6(mm)

Remove the flared nuts. (on both liquid and gas sides)

Install the removed flared nuts to the pipes to
be connected,then flared the pipes.
CAUTION
Do not apply refrigerating machine oil to the flared surface.
CAUTION
In case of faulty wiring connection, the indoor unit
stops, and then the run lamp turns on and the timer
lamp blinks.
CAUTION
Incorrect installation may cause problems such as non-cooling,
non-warming, and condensation water leaking into the room.
CAUTION
 During installation, do not lean on the control box or the display, as they
may be damaged.

Pass the connecting wire securely through the wiring holder. If it passes
on the sensor, it may not detect suction temperature and/or humidity.
Use cables for interconnection wiring to avoid
loosening of the wires.
CENELEC code for cables Required field cables.
H05RNR4G1.5 (example) or 245IEC57
H Harmonized cable type
05 300/500 volts
R Natural-and/or synth, rubber wire insulation
N
Polychloroprene rubber conductors insulation
R Stranded core
4or5 Number of conductors
G One conductor of the cable is the earth
conductor (yellow/green)
1.5 Section of copper wire (mm
2 )
 Flaring work
Measurement B
Flaring
block
Copper pipe
Copper pipe diameter
Use a flare tool designed for R410A or a conventional flare tool.
Please note that measurement B (protrusion from the flaring block) will vary depending
on the type of a flare tool in use.
If a coventional flare tool is used, please use a copper pipe gauge or a similar
instrument to check protrusion so that you can keep measurement B to a correct value.
Clutch type flare tool for
R410A Conventional (R22) flare tool
ø6.35
ø9.52
ø12.7 0.0 - 0.5
0.0 - 0.5
0.0 - 0.5 1.0 - 1.5
1.0 - 1.5
1.0 - 1.5 1.5 - 2.0
1.5 - 2.0
2.0 - 2.5
Measurement B (mm)
Clutch type Wing nut type
CAUTION
Do not apply excess torque to the flared nuts. Otherwise, the flared nuts may check depending.
CAUTION
(Do not pull with a force of larger than 5 kgf.)
Be careful not to stress the connecting refrigerant pipes.
Connection
How to fit the front panel
Close and attachment of the air inler panel
Insulation of the connection portion
Indoor
Liquid side
Gas side
(Do not turn)
Pass the refrigerant pipe through the piping hole to
indoor side.
Arrange the pipes according to the direction of piping.
Cover the coupling with insulator and then cover it with tapes.
Position it so that the slit area faces upward.
 Connect the pipes on both liquid and gas sides.

Tighten the nuts to the following torque.
Liquid side (ø6.35) : 14.0 - 18.0 N·m (1.4 - 1.8 kgf·m)
Gas side (ø9.52) : 34.0 - 42.0 N·m (3.4 - 4.2 kgf·m)
(ø12.7) : 49.0 - 61.0 N·m (4.9 - 6.1 kgf·m)
 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>
1
Connect charge hose to service port of outdoor unit.
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.
1. Open the air inlet panel and remove the air filters.
2. Install the filter holders, with the air-cleaning filters installed in the holders.
In the air conditioner.
• Each air-cleaning filter can be installed in the upper or lower filter holder.
3. Install the air filters and close the inlet panel.
After installation
The power supply voltage is correct as the rating.
No gas leaks from the joints of the operational valve.
Power cables and crossover wires are securely fixed to the terminal board.
Operational valve is fully open.
The pipe joints for indoor and outdoor pipes have been insulated.
Finishing work and fixing
Connection wiring,
Earth wiring
Outer tape
Refrigerant piping
Drain hose
Wood screw
Clamp
Cover the exterior portion with outer tape
and shape the piping so it will match the
contours of the route that the piping to take.
Also fix the wiring and pipings to the wall
with clamps.
 Fitting
1 Do remove the air filter.
2 Cover the body with the front panel.
3 Fit the 6 latches in the lower section.
then 3 latches in the upper section.
4
Tighten the 5 set screws.
5 Fit the air filter.
6 Fit the air inlet panel.

To close, attach the panel after pulling
the strings, hold the panel at both ends of
upper part to lower downward and push it
slightly until the latch works.
Preparation of indoor unit
Installing the air-cleaning filters Concealed installation
1
Remove the fixing screw of clamp.
2
Connect the connecting wire securely to the terminal block.
1 ) Connect the connection wire securely to the terminal
block. If the wire is not affixed completely, contact will be
poor, and it is dangerous as the terminal block may heat
up and catch fire.
2 ) Take care not to confuse the terminal numbers for indoor
and outdoor connections.
3
Fix the connecting wire by wiring clamp.
4 Pass the connecting wire through the wiring holder.
Install the indoor unit according to the following instructions.
1 Secure the upper, right, and left spaces according to the right figure.
2 Do not let the horizontal bar obstruct wind from blowing out
upward/downward or reception from the remote controller.
3 The lattice size should be 70 % or greater of the open rate.
4 Cut the jumper cable (JP173) on the indoor circuit board to control
the blow-out angle.
Mounting of connecting wires
Conventionally, operate the remote control switch by
holding in your hand.
Avoid installing it on a clay wall etc.
Cover
6 Battery
INSTALLATION OF REMOTE CONTROL
Mounting method of battery
Fixing to pillar or wall
Do not use new and old batteries together.
Test run
Air conditioning operation is normal.
No abnormal noise.
Water drains smoothly.
Protective functions are not working.
The remote control is normal.
Operation of the unit has been explained to the customer.
(Three-minutes restart preventive timer)
When the air conditioner is restarted or when changing
the operation, the unit will not start operating for
approximately 3 minutes.
This is to protect the unit and it is not a malfunction.
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.
Forced cooling operation
Turn on a power supply again after a while after turn off a power supply.
Then press continually the ON/OFF button 5 seconds or more.
1 Remove the front panel and lid of control.
2 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 optional “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, please refer to the user's manual of your “Interface connection kit
SC-BIKN-E”.
Fixing of indoor unit
Floor installation Wall installation
・
During the installation, do not lean on the control box or the display, as they may be damaged.
・
Install the indoor unit on flat wall. If improperly installed, it may cause abnormal noise and vibration. (Distortion on the wall shall be no larger than 3 mm.)
CAUTION
Tapping screw
Use an attached pipe cover for heat insulation.
Refrigerant
pipe
Slit
Refrigerant
pipe
Slit
Tape
Add
⑩ band
Refrigerant
pipe
⑨ Pipe cover
CAUTION
If heat insulation is insufficient, water leakage
may occur. In addition, the room temperature
sensor may give a false alert due to heat
radiation from the pipes.
 Cover the indoor unit’s flare-connected joints, after
they are checked for a gas leak, with an indoor unit
heat insulating material and then wrap them with a
tape with an attached pipe cover placed over the
heat insulating material’s slit area.
5cm or more
5cm or more
7cm or more
2 - 3cm
Filter holder
Air-cleaning filter
CAUTION
When installing an air-cleaning filter in the indoor unit, be careful not to injure
your hand with the heat exchanger.
Unit ON/OFF button
5 Wood screw
3.5 16
2 Wireless remote control
(860)
103.5
156.5
726
585
5
585 595
(600)
30.5
83.5
(238)
CAUTION
JP171
JP170
JP172
JP173
COOL ONLY
AIR FLOW
SWITCH
CUSTOM
AUTORESTART
REMOTE/
Cut
Terminal block
Sensor
Fixing screw
Clamp
Wiring holder