Mitsubishi SCM40ZS-S Technical Manual page 113

Drain pipe (continued)
⑥
4. Insulate the drain pipe.
 Be sure to insulate the drain socket and rigid PVC pipe installed indoors otherwise it may cause
dew condensation and water leakage.
After drainage test implementation, cover the drain socket part with pipe cover (small size),
then use the pipe cover (big size) to cover the pipe cover (small size), clamps and part of the
drain hose, and fix and wrap it with tapes to wrap and make joint part gapless.
Drain up
 The position for drain pipe outlet can be raised up to 600mm above the ceiling. Use elbows for
installation to avoid obstacles inside ceiling. If the horizontal drain pipe is too long before vertical
pipe, the backflow of water will increase when the unit is stopped, and it may cause overflow of
water from the drain pan on the indoor unit. In order to avoid overflow, keep the horizontal pipe
length and offset of the pipe within the limit shown in the figure below.
295 to 325mm
Drain hose
Joint for VP20
(Prepare on site)
⑥
Drain pipe (continued)
Drain test
 After installation of drain pipe, make sure that drain system work in good condition and no water
⑥ Drain pipe (continued)
leakage from joint and drain pan. Check if the motor sound of drain pump is normal or not.
 Do drain test even if installation of heating season.
Drain test
 For new building cases, make sure to complete the test before
 After installation of drain pipe, make sure that drain system work in good condition and no water
hanging the ceiling.
leakage from joint and drain pan. Check if the motor sound of drain pump is normal or not.
1. Pour water of about 1000cc into the drain pan in the indoor unit by
 Do drain test even if installation of heating season.
pump so as not to get the electrical component wet.
 For new building cases, make sure to complete the test before
2. Make sure that water is drained out properly and there is no water
hanging the ceiling.
leakage from any joints of the drain pipe at the test.
1. Pour water of about 1000cc into the drain pan in the indoor unit by
Confirm that the water is properly drained out while the drain motor
pump so as not to get the electrical component wet.
is operating. At the drain socket (transparent), it is possible to
2. Make sure that water is drained out properly and there is no water
check if the water is drained out properly.
leakage from any joints of the drain pipe at the test.
3. Unplug the drain plug on the indoor unit to remove remaining water
Confirm that the water is properly drained out while the drain motor
on the drain pan after the test, and re-plug it. And insulate the drain
is operating. At the drain socket (transparent), it is possible to
pipe properly finally.
check if the water is drained out properly.
3. Unplug the drain plug on the indoor unit to remove remaining water
Drain pump operation
on the drain pan after the test, and re-plug it. And insulate the drain
Drain pump can be operated by remote control (wired).
pipe properly finally.
 In case electrical wiring work finished
Drain pump can be operated by remote control (wired).
For the operation method, refer to Operation for drain pump in the installation manual for wiring
Drain pump operation
work.
 In case electrical wiring work finished
 In case electrical wiring work not finished
Drain pump can be operated by remote controller (wired).
Drain pump will run continuously when the dip switch"SW7-1" on the indoor unit PCB is turned ON,
For the operation method, refer to Operation for drain pump in the installation manual for wiring
the Connector CNB is disconnected, and then the power source (AC220-240V on the terminal block
work.
[ ① and ②] or [ Ⓛ and Ⓝ ] ) is turned ON.
 In case electrical wiring work not finished
Make sure to turn OFF "SW7-1" and reconnect the Connector CNB after the test.
Drain pump will run continuously when the dip switch"SW7-1" on the indoor unit PCB is turned ON,
the Connector CNB is disconnected, and then the power supply (220-240VAC on the terminal block
[ ① and ②] or [ Ⓛ and Ⓝ ] ) is turned ON.
⑦
Wiring-out position and wiring connection
Make sure to turn OFF "SW7-1" and reconnect the Connector CNB after the test.
 Electrical installation work must be performed according to the installation manual by an electrical
installation service provider qualified by a power provider of the country, and be executed according
Wiring-out position and wiring connection
⑦
⑦ Wiring-out position and wiring connection
to the technical standards and other regulations applicable to electrical installation in the country.
Be sure to use an exclusive circuit.
 Electrical installation work must be performed according to the installation manual by an electrical
 Use specified cord, fasten the wiring to the terminal securely, and hold the cord securely in order
installation service provider qualified by a power provider of the country, and be executed according
not to apply unexpected stress on the terminal.
to the technical standards and other regulations applicable to electrical installation in the country.
 Do not put both power source line and signal line on the same route. It may cause
Be sure to use an exclusive circuit.
miscommunication and malfunction.
 Use specified cord, fasten the wiring to the terminal securely, and hold the cord securely in order
 Be sure to do D type earth work.
not to apply unexpected stress on the terminal.
 For the details of electrical wiring work, see attached instruction manual for electrical wiring work.
 Do not put both power source line and signal line on the same route. It may cause
miscommunication and malfunction.
1. Remove a lid of the control box (1 screws).
 Be sure to do D type earth work.
2. Hold each wiring inside the unit and fasten them to terminal block securely.
 For the details of electrical wiring work, see attached instruction manual for electrical wiring work.
3. Fix the wiring with clamp.
4. Install a lid of the control box back to original place.
1. Remove a lid of the control box (1 screws).
2. Hold each wiring inside the unit and fasten them to terminal block securely.
Single split (PAC) series
3. Fix the wiring with clamp.
4. Install a lid of the control box back to original place.
Descending stop greater than 1/100
100 or less
Drain plug
Drain plug
-
Wiring-out position and wiring connection (continued)
⑦
Single spilit (PAC) series
Main fuse
VRF (KX) series
Main fuse
Main fuse specification
Specification
T3.15A L250V
Panel installation
⑧
 After wiring work finished, install the panel on the indoor unit.
 After wiring work finished, install the panel on the indoor unit.
 Refer to attached panel installation manual for details.
 Refer to attached panel installation manual for details.
Accessory items
Accessory items
1 Hook 1 piece
1 Hook 1 piece
2 Chain 2 pieces
2 Chain 2 pieces
3 Bolt 4 pieces
3 Bolt 4 pieces
4 Screw 1 piece
4 Screw 1 piece
5 Screw 2 pieces
5 Screw 2 pieces
 Attach the panel on the indoor unit after electrical wiring work.
 Attach the panel on the indoor unit after electrical wiring work.
 Refer to attached manual for panel installation for details.
 Refer to attached manual for panel installation for details.
⑨
⑨ Check list after installation Check list after installation
Check list after installation
⑨
 Check the following items after all installation work completed.
 Check the following items after all installation work completed.
Check if
Check if
The indoor and outdoor units are fixed securely?
The indoor and outdoor units are fixed securely?
Inspection for leakage is done?
Inspection for leakage is done?
Insulation work is properly done?
Insulation work is properly done?
Water is drained properly?
Water is drained properly?
Power source voltage is same as mentioned in the model name plate?
Supply voltage is same as mentioned in the model name plate?
There is mis-wiring or mis-connection of piping?
There is mis-wiring or mis-connection of piping?
Earth wiring is connected properly?
Earth wiring is connected properly?
Cable size comply with specified size?
Cable size comply with specified size?
Any obstacle blocks airflow on air inlet and outlet?
Any obstacle blocks airflow on air inlet and outlet?
112
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'16 • SCM-T-199
Power source side
terminal block
Earth
Wiring between indoor
and outdoor unit
Remote control line
Wiring clamp
Signal side terminal block
Power source side
terminal block
Earth
Indoor power souce line
Signal line (shielded cord)
Remote control line
Wiring clamp
Earth (signal line)
Signal side terminal block
Part No.
SSA564A149F
For fixing temporarily
For fixing temporarily
For installing the panel
For installing the panel
For attaching a hook
For attaching a hook
For attaching a chain
For attaching a chain
Expected trouble Check
Expected trouble Check
Falling, vibration, noise
Falling, vibration, noise
Insufficient capacity
Insufficient capacity
Water leakage
Water leakage
Water leakage
Water leakage
PCB burnt out, not working at all
PCB burnt out, not working at all
PCB burnt out, not working at all
PCB burnt out, not working at all
Electric shock
Electric shock
PCB burnt out, not working at all
PCB burnt out, not working at all
Insufficient capacity
Insufficient capacity
PJA012D786B
B