< S552 :
B
>
•
Below figure shows a case of RAM-80QH4.
Connecting cord shall put away
in the inside of side plate after
fixation by cord band.
Terminal indications
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Main
No. 1
No. 2
No. 3
No. 4
Switch
Brown
Red
Brown Red Brown Red
Brown
Red
Fig. 3-3
•
When putting 2 connecting cords through the band.
3.3 Preparation of pipe
•
Use a pipe cutter to cut the copper pipe.
Outer
A (mm) Rigid Flaring tool
Diameter (ø)
For R410A tool
For R22 tool
6.35 (1/4")
0 - 0.5
1.0
9.52 (3/8")
0 - 0.5
1.0
12.7 (1/2")
0 - 0.5
1.0
3.4 Pipe connection
Connecting the pipe to outdoor unit
(1) Remove the flare nut and seal cap from the service valve.
(2) Apply refrigerator oil to the service valve and the flared portion of the pipe.
(3) Using a wrench, securely tighten.
Fig. 3-4
In case of removing flare nut of an Indoor unit, first remove a nut of small diameter
side, or a seal cap of large diameter side will fly out. Free from water into the
piping when working.
CAUTION
•
Please be careful when bending the copper pipe.
•
Screw in manually while adjusting the center. After that, use a torque wrench to tighten the connection.
Flare nut
Wrench
Torque
wrench
Outer diameter
Torque N·m
of pipe (ø)
(kgf·cm)
Small diameter side
6.35 (1/4")
13.7-18.6 (140-190)
Large diameter side
9.52 (3/8")
34.3-44.1 (350-450)
12.7 (1/2")
44.1-53.9 (450-550)
Valve head
Small diameter side
6.35 (1/4")
19.6-24.5 (200-250)
cap
Large diameter side
9.52 (3/8")
19.6-24.5 (200-250)
12.7 (1/2")
29.4-34.3 (300-350)
Valve core cap
12.3-15.7 (125-160)
Fig. 3-5
•
Hold the handle of the side cover, slide down and take off the corner hook, then pull. Reverse these
steps when installing.
Pipe connection port for Indoor unit 1
Pipe connection port for Indoor unit 2
Pipe connection port for Indoor unit 3
Indoor unit No. 1
Indoor unit No. 2
Indoor unit No. 3
Pipe connection port for Indoor unit 1
Pipe connection port for Indoor unit 2
Pipe connection port for Indoor unit 3
Pipe connection port for Indoor unit 4
Connecting cord should
have arranged with piping
using tape previously.
Indoor unit No. 1
Indoor unit No. 2
Indoor unit No. 3
Indoor unit No. 4
•
Before flaring, please put on the flare nut.
Copper pipe
Trimming tool
A
Die
Die
Copper pipe
•
Please use exclusive tool.
RAM-70QH4
RAM-80QH4
4. Air purging
After completing the piping, purge the air from the connected pipe and indoor unit. If this work is not
done, the discharge pressure will abnormally rise so that the refrigerating cycle unit will possible be
damaged or inoperable.
4.1 Air purging by using vacuum pump
Fig. 4-2
Service valve on wide pipe
Valve cap
Service valve on narrow pipe
Valve cap
Valve cap of valve core
When the meter reaches –101KPa
(–76cmHg) during pumping, fully
tighten the shuttle.
Meter showing pressure
Closed
R410A
Manifold valve
Vacumn
pump
Vacumn
pump adapter
Valve
Charge hose
When pumping starts, slightly loosen the flare nut
to check of air sucked in. Then tighten the flare nut.
Valve
Fig. 4-1
RAM-80QH4
(Reference value)
COOLING
HEATING
CAPACITY RATING
(kW) (RANGE)
POSSIBLE
COMBINATIONS
TO OPERATE
OUTDOOR UNIT
OUTDOOR UNIT
CAPACITY RATING
(kW) (RANGE)
POWER
CONSUMPTION
(W)
AMPERE
(A)
230V
POWER
CONSUMPTION
(W)
AMPERE
(A)
230V
Air purging by vacuum pump
Connecting cord should
have arranged with piping
using tape previously.
Screw
Insulating plate
Cord
band
Connecting cord
Tighten all the way by hand.
Do not tighten all at once, but tighten it while fitting the
flared surface to the pipe.
Vacuum for more than 10 min.
Remove the valve cap of valve core.
Connect the charge hoses to the vacuum
pump and the charge port of the valve core
large dia. pipe side service valve,
respectively.
Fully open the LO knob of the manifold valve.
Put the vacuum pump into run.
Close the LO knob of the manifold valve.
Stop the vacuum pump.
Remove the valve cap from the spindle of
the service valve.
Turn the spindles of each large and small dia.
pipe side service valves full counterclockwise
until they are securely tightened. Then
retighten them more than 10 degrees [using
a hexagon wrench key (4mm
) without
fail].
Valve cap
Valve core
Pipe
Valve cap of valve core
Stopper
O-Ring
Pipe
Seal cap
Flare nut
Spindle
Fig. 4-3
The refrigerant channel is opened so that the
refrigerant will flow from the outdoor unit into
the indoor unit.
Gas Leakage Inspection
Please use gas leakage detector to check if leakage
occurs at connection of flare nut as shown on the right.
If gas leakage occurs, further tighten the connection to
stop leakage. (Use the detector provided for R410A.)
Tighten the valve cap of valve core.
[Torque 12.3-15.7 N·m (125-160 kgf·cm)]
Attach the valve cap to the spindles of each
large and small dia. pipe side service valves.
Tighten the valve cap of the spindle.
[Torque 19.6-24.5 N·m (200
-
250 kgf·cm)]
Disconnect the charge hose from the service
valve.
COOL/HEAT CAPACITY SPEC, FOR INDOOR UNITS COMBINATIONS
RAM-70QH4
(Reference value)
COOLING
HEATING
CAPACITY RATING
(kW) (RANGE)
POSSIBLE
COMBINATIONS
TO OPERATE
OUTDOOR UNIT
OUTDOOR UNIT
CAPACITY RATING
(kW) (RANGE)
POWER
CONSUMPTION
(W)
AMPERE
(A)
230V
POWER
CONSUMPTION
(W)
AMPERE
(A)
230V
ONE UNIT
THREE UNITS
Two units
…
Each unit is connected to each compressor.
Two units
…
Two units are connected to one compressor.
2.5
3.5
4.0
5.0
2.5+2.5
2.5+3.5
2.5+4.0
2.5+5.0
3.5+3.5
3.5+4.0
3.5+5.0
4.0+4.0
4.0+5.0
2.5+2.5
2.5+3.5
2.5+4.0
3.5+3.5
2.5+2.5+2.5
2.5+2.5+3.5
2.5+2.5+4.0
2.5+2.5+5.0
2.5+3.5+3.5
2.5+3.5+4.0
2.5+3.5+5.0
2.5+4.0+4.0
3.5+3.5+3.5
3.5+3.5+4.0
2.50
(1.00~2.80)
3.50
(1.00~3.90)
4.00
(1.00~4.50)
5.00
(1.00~5.60)
2.50+2.50
(1.50~5.60)
2.50+3.50
(1.50~6.60)
2.50+4.00
(1.50~7.00)
2.50+4.50
(1.50~7.60)
3.50+3.50
(1.50~7.60)
3.30+3.70
(1.50~7.60)
2.90+4.10
(1.50~7.60)
3.50+3.50
(1.50~7.60)
3.10+3.90
(1.50~7.60)
2.50+2.50
(1.50~5.50)
2.30+3.30
(1.50~6.20)
2.20+3.40
(1.50~6.20)
2.80+2.80
(1.50~6.20)
2.33+2.33+2.33
(3.00~7.90)
2.05+2.05+2.90
(3.00~7.90)
1.95+1.95+3.10
(3.00~7.90)
1.75+1.75+3.50
(3.00~7.90)
1.80+2.60+2.60
(3.00~7.90)
1.75+2.45+2.80
(3.00~7.90)
1.60+2.20+3.20
(3.00~7.90)
1.70+2.65+2.65
(3.00~7.90)
2.33+2.33+2.33
(3.00~7.90)
2.20+2.20+2.60
(3.00~7.90)
780
(360~980)
1160
(360~1280)
1340
(360~1480)
1910
(360~2100)
1560
(640~1720)
1990
(640~2190)
2220
(640~2440)
2580
(640~2840)
2580
(640~2840)
2580
(640~2840)
2580
(640~2840)
2580
(640~2840)
2580
(640~2840)
1660
(640~1830)
1860
(640~2050)
1860
(640~2050)
1860
(640~2050)
2180
(650~3180)
2180
(650~3180)
2180
(650~3180)
2180
(650~3180)
2180
(650~3180)
2180
(650~3180)
2180
(650~3180)
2180
(650~3180)
2180
(650~3180)
2180
(650~3180)
3.4
5.1
5.9
8.4
6.9
8.7
9.7
11.3
11.3
11.3
11.3
11.3
11.3
7.3
8.2
8.2
8.2
9.6
9.6
9.6
9.6
9.6
9.6
9.6
9.6
9.6
9.6
3.90
(1.10~4.70)
4.80
(1.10~5.80)
6.00
(1.10~6.80)
6.70
(1.10~7.60)
3.90+3.90
(1.50~8.60)
3.90+4.80
(1.50~9.60)
3.50+5.50
(1.50~9.90)
3.00+6.00
(1.50~9.90)
4.70+4.70
(1.50~10.30)
4.50+4.90
(1.50~10.30)
3.90+5.50
(1.50~10.30)
4.70+4.70
(1.50~10.30)
4.20+5.20
(1.50~10.30)
2.90+2.90
(1.50~6.40)
2.60+3.60
(1.50~6.80)
2.40+3.80
(1.50~6.80)
3.10+3.10
(1.50~6.80)
3.20+3.20+3.20
(3.00~10.60)
2.80+2.80+4.00
(3.00~10.60)
2.60+2.60+4.40
(3.00~10.60)
2.35+2.35+4.90
(3.00~10.60)
2.53+3.53+3.53
(3.00~10.60)
2.40+3.40+3.80
(3.00~10.60)
2.10+3.10+4.40
(3.00~10.60)
2.20+3.70+3.70
(3.00~10.60)
3.20+3.20+3.20
(3.00~10.60)
3.10+3.10+3.40
(3.00~10.60)
1100
(320~1280)
1380
(320~1750)
1770
(320~1920)
2070
(320~2170)
2290
(600~2520)
2690
(600~2960)
3200
(600~3520)
3200
(600~3520)
3200
(600~3520)
3200
(600~3520)
3200
(600~3520)
3200
(600~3520)
3200
(600~3520)
1580
(600~1740)
1930
(600~2120)
1930
(600~2120)
1930
(600~2120)
2480
(620~3520)
2480
(620~3520)
2480
(620~3520)
2480
(620~3520)
2480
(620~3520)
2480
(620~3520)
2480
(620~3520)
2480
(620~3520)
2480
(620~3520)
2480
(620~3520)
4.8
6.1
7.8
9.1
10.1
11.8
14.1
14.1
14.1
14.1
14.1
14.1
14.1
6.9
8.5
8.5
8.5
10.9
10.9
10.9
10.9
10.9
10.9
10.9
10.9
10.9
10.9
TW
O UNITS
TW
O UNITS
ONE UNIT
THREE UNITS
FOUR UNITS
2.5
3.5
4.0
5.0
2.5+2.5
2.5+3.5
2.5+4.0
2.5+5.0
3.5+3.5
3.5+4.0
3.5+5.0
4.0+4.0
4.0+5.0
5.0+5.0
2.5+2.5
2.5+3.5
2.5+4.0
3.5+3.5
2.5+2.5+2.5
2.5+2.5+3.5
2.5+2.5+4.0
2.5+2.5+5.0
2.5+3.5+3.5
2.5+3.5+4.0
2.5+3.5+5.0
2.5+4.0+4.0
2.5+4.0+5.0
3.5+3.5+3.5
3.5+3.5+4.0
3.5+3.5+5.0
3.5+4.0+4.0
2.5+2.5+2.5+2.5
2.5+2.5+2.5+3.5
2.5+2.5+2.5+4.0
2.5+2.5+3.5+3.5
2.50
(1.00~2.80)
3.50
(1.00~3.90)
4.00
(1.00~4.50)
5.00
(1.00~5.60)
2.50+2.50
(1.50~5.60)
2.50+3.50
(1.50~6.60)
2.50+4.00
(1.50~7.00)
2.50+4.50
(1.50~7.60)
3.50+3.50
(1.50~7.60)
3.50+4.00
(1.50~8.00)
3.10+4.40
(1.50~8.00)
4.00+4.00
(1.50~8.20)
3.60+4.40
(1.50~8.20)
4.00+4.00
(1.50~8.20)
2.50+2.50
(1.50~5.50)
2.30+3.30
(1.50~6.20)
2.20+3.40
(1.50~6.20)
2.80+2.80
(1.50~6.20)
2.50+2.50+2.50
(3.00~8.20)
2.30+2.30+3.40
(3.00~8.50)
2.20+2.20+3.60
(3.00~8.50)
2.00+2.00+4.00
(3.00~8.50)
2.00+3.00+3.00
(3.00~8.50)
2.00+2.90+3.10
(3.00~8.50)
1.80+2.60+3.60
(3.00~8.50)
2.00+3.00+3.00
(3.00~8.50)
1.70+2.80+3.50
(3.00~8.50)
2.66+2.66+2.66
(3.00~8.50)
2.60+2.60+2.80
(3.00~8.50)
2.40+2.40+3.20
(3.00~8.50)
2.40+2.80+2.80
(3.00~8.50)
2.00+2.00+2.00+2.00
(3.00~9.20)
1.85+1.85+1.85+2.45
(3.00~9.20)
1.80+1.80+1.80+2.60
(3.00~9.20)
1.70+1.70+2.30+2.30
(3.00~9.20)
780
(360~980)
1160
(360~1280)
1340
(360~1480)
1910
(360~2100)
1560
(640~1720)
1990
(640~2190)
2220
(640~2440)
2580
(640~2840)
2580
(640~2840)
2720
(640~2990)
2720
(640~2990)
2760
(640~3040)
2760
(640~3040)
2760
(640~3040)
1660
(640~1830)
1860
(640~2050)
1860
(640~2050)
1860
(640~2050)
2420
(650~3000)
2580
(650~3200)
2580
(650~3200)
2580
(650~3200)
2580
(650~3200)
2580
(650~3200)
2580
(650~3200)
2580
(650~3200)
2580
(650~3200)
2580
(650~3200)
2580
(650~3200)
2580
(650~3200)
2580
(650~3200)
2650
(650~3200)
2650
(650~3200)
2650
(650~3200)
2650
(650~3200)
3.4
5.1
5.9
8.4
6.9
8.7
9.7
11.3
11.3
11.9
11.9
12.1
12.1
12.1
7.3
8.2
8.2
8.2
10.6
11.3
11.3
11.3
11.3
11.3
11.3
11.3
11.3
11.3
11.3
11.3
11.3
11.6
11.6
11.6
11.6
3.90
(1.10~4.70)
4.80
(1.10~5.80)
6.00
(1.10~6.80)
6.70
(1.10~7.60)
3.90+3.90
(1.50~8.60)
3.90+4.80
(1.50~9.60)
3.50+5.50
(1.50~9.90)
3.00+6.00
(1.50~9.90)
4.70+4.70
(1.50~10.30)
4.50+4.90
(1.50~10.30)
4.00+5.60
(1.50~10.60)
4.80+4.80
(1.50~10.60)
4.30+5.30
(1.50~10.60)
4.80+4.80
(1.50~10.60)
2.90+2.90
(1.50~6.40)
2.60+3.60
(1.50~6.80)
2.40+3.80
(1.50~6.80)
3.10+3.10
(1.50~6.80)
3.40+3.40+3.40
(3.00~11.20)
3.00+3.00+4.20
(3.00~11.20)
2.80+2.80+4.60
(3.00~11.20)
2.60+2.60+5.00
(3.00~11.20)
2.60+3.80+3.80
(3.00~11.20)
2.60+3.60+4.00
(3.00~11.20)
2.30+3.30+4.60
(3.00~11.20)
2.40+3.90+3.90
(3.00~11.20)
2.30+3.50+4.40
(3.00~11.20)
3.40+3.40+3.40
(3.00~11.20)
3.20+3.20+3.80
(3.00~11.20)
3.00+3.00+4.20
(3.00~11.20)
3.20+3.50+3.50
(3.00~11.20)
2.75+2.75+2.75+2.75
(3.00~12.40)
2.50+2.50+2.50+3.50
(3.00~12.40)
2.40+2.40+2.40+3.80
(3.00~12.40)
2.30+2.30+3.20+3.20
(3.00~12.40)
1100
(320~1280)
1380
(320~1750)
1770
(320~1920)
2070
(320~2170)
2290
(600~2520)
2690
(600~2960)
3200
(600~3520)
3200
(600~3520)
3200
(600~3520)
3200
(600~3520)
3300
(600~3630)
3300
(600~3630)
3300
(600~3630)
3300
(600~3630)
1580
(600~1740)
1930
(600~2120)
1930
(600~2120)
1930
(600~2120)
2530
(620~3630)
2530
(620~3630)
2530
(620~3630)
2530
(620~3630)
2530
(620~3630)
2530
(620~3630)
2530
(620~3630)
2530
(620~3630)
2530
(620~3630)
2530
(620~3630)
2530
(620~3630)
2530
(620~3630)
2530
(620~3630)
2630
(620~3630)
2630
(620~3630)
2630
(620~3630)
2630
(620~3630)
4.8
6.1
7.8
9.1
10.1
11.8
14.1
14.1
14.1
14.1
14.5
14.5
14.5
14.5
6.9
8.5
8.5
8.5
11.1
11.1
11.1
11.1
11.1
11.1
11.1
11.1
11.1
11.1
11.1
11.1
11.1
11.6
11.6
11.6
11.6
TW
O UNITS
TW
O UNITS
WARNING
•
The naked part of the wire core should be 10mm and fix it to the terminal tightly. Then try to pull the
individual wire to check if the contact is tight. Improper insertion may burn the terminal.
•
Be sure to use only wire specified for the use of air conditioner.
•
Please refer to the installation manual for wire connection and the wiring technique should meet the
standards of electrical installation.
•
There is an AC voltage drop between the LN terminals if the power is on. Therefore, be sure to
switch off the power supply.
WARNING
•
Connecting cord should be connected according to Fig. 3-1, that the Indoor unit No.
agree with terminal board No. of Outdoor unit.
•
Be sure to fix the connecting cord with the band as shown below. Otherwise water
leakage causes short circuit or faults.
CAUTION
•
Jagged edge will cause leakage.
•
Point the side to be trimmed downwards
during trimming to prevent copper chips
from entering the pipe.
WARNING
•
Leave some space in the connecting cord
for maintenance purpose and be sure to
secure it with the cord band.
•
Secure the connecting cord along the
coated part of the wire using the cord band.
Do not exert pressure on the wire as this
may cause overheating or fire.
Two units
…
Each unit is connected to each compressor.
Two units
…
Two units are connected to one compressor.
•
Install the unit in a stable place to minimize vibration or noise.
•
After arranging the cords and pipes, secure them in place.