Panasonic CU-2Z35 Serie Manual De Instrucciones página 2

INSTALLATION INSTRUCTION (OUTDOOR UNIT)
SELECT THE BEST LOCATION
OUTDOOR UNIT
  If an awning is built over the unit to prevent direct sunlight or rain, be careful that heat radiation from the condenser is not obstructed.
  There should not be any animal or plant which could be affected by hot air discharged.
  Keep the spaces indicated by arrows from wall, ceiling, fence or other obstacles.
  Do not place any obstacles which may cause a short circuit of the discharged air.
  If piping length is over the [piping length for additional gas], additional refrigerant should be added as shown in the table.
Table A
Wall
Std. Min. Piping Max. Total Max. Piping Length Additional
Mounted
MODEL Length Length Length Elevation for add. Gas Refrigerant
Indoor A
(m) (m) (m) (m) (m) (g/m)
(m 2 )
CU-2Z35***, 5 m /
3 m /
CU-2Z41***, indoor 30 10 20 15 1.54
indoor unit
CU-2Z50*** unit
Note:
(1) It is possible to extend the piping length of one unit up to 20 meters. However, the total piping length must not exceed 30 meters.
(2) If the length exceeds 20 meters, refrigerant of 15g per meter must be added.
A = (m / (2.5 x (LFL) (5/4) x h )) ²
min c
0
A = Required minimum room area, in m²
min
m = Refrigerant charge amount in appliance, in kg
c
LFL = Lower fl ammable limit (0.306 kg/m³)
h = Installation height of the appliance (1.8 m for Wall Mounted, 2.2 m for Mini Cassette & Ducted).
0
1 1
SELECT THE BEST LOCATION
(Refer to "Select the best location" section)
2
INSTALL THE OUTDOOR UNIT
•
After selecting the best location, start installation to Indoor/Outdoor Unit Installation Diagram.
1. Fix the unit on concrete or rigid frame fi rmly and horizontally by bolt nut (ø10 mm). A
When installing at roof, please consider strong wind and earthquake.
2.
Please fasten the installation stand firmly with bolt or nails.
Model A B C D
CU-2Z35***,
CU-2Z41***, 540 mm 160 mm 18.5 mm 330 mm
CU-2Z50***
3
CONNECT THE PIPING
Connecting The Piping to Indoor Do not overtighten, overtightening may cause
gas leakage.
Please make fl are after inserting fl are nut (locate at joint portion of tube
assembly) onto the copper pipe. (In case of using long piping) Piping size
Connect the piping 6.35 mm (1/4") [18 N•m (1.8 kgf•m)]
• Align the center of piping and suffi ciently tighten the fl are nut with fi ngers.
9.52 mm (3/8") [42 N•m (4.3 kgf•m)]
•
Further tighten the fl are nut with torque wrench in specifi ed torque as stated
12.7 mm (1/2") [55 N•m (5.6 kgf•m)]
in the table.
15.88 mm (5/8") [65 N•m (6.6 kgf•m)]
19.05 mm (3/4") [100 N•m (10.2 kgf•m)]
Connecting The Piping to Outdoor Multi
Decide piping length and then cut by using pipe cutter.
Remove burrs from cut edge.
Make flare after inserting the flare nut (locate at valve) onto the copper pipe.
Align center of piping to valve and then tighten with torque wrench to the
specified torque as stated in the table.
5
CONNECT THE CABLE TO THE OUTDOOR UNIT
1. Remove the control board cover (metal) from the unit by loosening two screws.
2. Cable connection to the power supply through isolating Devices (Disconnecting means).
Connect approved type polychloroprene sheathed power supply cord 3 x 1.5 mm
• 2 type designation
60245 IEC 57 or heavier cord to the terminal board, and connect the others end of the cord to Isolating
Devices (Disconnecting means)
Connection cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed
3.
4 x 1.5 mm² fl exible cord, type designation 60245 IEC 57 or heavier cord. Allowable connection cable
length of each indoor unit shall be 30 m or less.
4. Connect the power supply cord and connecting cable between indoor unit and outdoor unit according
to the diagram as shown.
Terminals on the indoor unit 1 2 3 1 2 3
Colour of wires (Connection cable)
Terminals on the outdoor unit L N 1 2 3 1 2 3
(Power supply cord) (UNIT A) (UNIT B)
Terminals on the Isolating devices
(L) (N)
(Disconnecting means)
5. Secure the power supply cord and connection cables onto the control board with the
holder.
Attach the control board cover back to the original position with screw.
6.
7. For wire stripping and connection requirement, refer to the diagram as shown.
L N
WIRE STRIPPING, Conductor Conductor over Conductor not
Wire stripping Indoor/outdoor
fully inserted inserted fully inserted
CONNECTING connection
terminal board
REQUIREMENT
5 mm or more
No loose strand
when inserted ACCEPT PROHIBITED PROHIBITED
(gap between wires)
WARNING
This equipment must be properly earthed. Power Indoor & outdoor
Supply Cord connection cable
•
Note: Isolating Devices (Disconnecting means)
should have minimum 3.0 mm contact gap.
Isolating Indoor
•
Earth wire shall be Yellow/Green (Y/G) in colour
Devices Unit B
and longer than other AC wires for safety reason.
6
PIPING INSULATION
1. Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation Diagram. Please wrap the
insulated piping end to prevent water from going inside the piping.
2. If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by using POLY-E FOAM
with thickness 6 mm or above.
Refrigerant tubing shall be protected against mechanical damage.
Use a material with good heat-resistant properties as the heat
Liquid-side pipes
insulation for the pipes. Be sure to insulate both the gas-side
CAUTION
and liquid-side pipes. If the pipes are not adequately insulated,
Gas-side pipes
condensation or water leakages may occur.
Mini
Ducted
Cassette
Indoor A
min
Indoor A
min min
(m 2 )
(m 2 )
1.03 1.03
•
This illustration is for
explanation purposes only.
AIR PURGING METHOD IS PROHIBITED FOR R32 SYSTEM
4
AIR TIGHTNESS TEST ON THE REFRIGERATING SYSTEM
Before system charged with refrigerant and before the refrigerating system in put into operation, below site test procedure and
acceptance criteria shall be verifi ed by the certifi ed technicians, and/or the installer:-
B Step 1: Pressure test for refrigerant leak detection:
1) Steps for pressure test, in accordance to ISO 5149.
2) Evacuate the system from refrigerant before the leak test, attach the gauge manifold set correctly and tightly. Charging hose of
Low side connect to Gas side. (Charging hose of High side connect to Liquid side if applicable.)
3) Adjust the knob on the service valves, and regulator on the gauge set, so that test gas can be inserted through the centre manifold
of the gauge set.
4) Insert Nitrogen gas into the system through the centre manifold and wait until the pressure within the system to reach about 1MPa
(10 BarG) wait for a few hours and monitor the pressure reading on the gauges.
5) Please note that the system's pressure may rise slightly if the test is carried out on mid day, due to temperature rise. The inverse
may happen when there is temperature drop at night. However, this variation will be minimal.
6) Waiting time depends on the size of the system. Larger systems may require 12 hours of waiting time. Leak detection within
smaller system can be achieved in 4 hours.
7) Check if there is a constant pressure drop. Move to next step "Step 2: Refrigerant leak detection..." if there is any pressure drop.
Otherwise, release the Nitrogen gas and, move to "Step 3: Evacuation of the equipment".
8) Next, insert a small amount of same refrigerant into the system through the centre hose, until the pressure reaches about 1MPa
(10 BarG).
(Low/Gas) pressure gauge
(High/Liquid) pressure gauge
Torque
7
3
2
2
4 8
Torque wrench
N R - ## #
2
An example illustrations of setup for
Spanner or Wrench
refrigerant leak detection.
Step 2: Refrigerant leak detection through Electronic halogen leak detector and/or ultrasonic leak detector:
1) Use any one of below detector to check leaking.
i) Electronic halogen leak detector.
i-a) Switch on the unit.
Control Board Cover
(metal) i-b) Cover the test area from direct draft.
i-c) Pass the detection probe near test area and wait for audible and visible signals.
ii) Ultrasonic Leak Detector
ii-a) Make sure the area is quiet.
ii-b) Switch on the ultrasonic leak detector.
ii-c) Move the probe along your air conditioning system to test for leaks, and mark for repair.
2) Any leak detected at this level shall be repaired and retested, starting from "Step 1: Pressure test".
NOTE:
Screws - Always recover the refrigerant and Nitrogen gas into recovery cylinder after completion of a test.
- You must use the detection equipment with Detectable Leak Rate of 10 -6 Pa.m
- Do not use refrigerant as test medium for system with total refrigerant charge more than 5kg.
- Test shall be performed with dry Nitrogen or another non-fl ammable, non-reactive, dried gas. Oxygen, air or mixtures containing
them shall not be used.
Step 3: Evacuation of the equipment:
Do not purge the air with refrigerants but use a vacuum pump to vacuum the installation.
1 2 3 Unit B
There is no extra refrigerant in the outdoor unit for air purging.
1. Connect a charging hose with a push pin to the Low and High side
1 2 3 Unit A
of a charging set and the service port of the 3-way valve.
•
Be sure to connect the end of the charging hose with the push
pin to the service port.
Connect the center hose of the charging set to a vacuum pump
2.
with check valve, or vacuum pump adaptor.
Turn on the power switch of the vacuum pump and make sure that
3.
the needle in the gauge moves from 0 cmHg (0 MPa) to
–76 cmHg (–0.1 MPa). Then evacuate the air for approximately
10 minutes.
4. Close the Low and High side valves of the charging set and turn
off the vacuum pump. Make sure that the needle in the gauge
does not move after approximately 5 minutes.
Indoor
Note : BE SURE TO FOLLOW THIS PROCEDURE IN ORDER
Unit A
TO AVOID REFRIGERANT GAS LEAKAGE.
5. Disconnect the charging hose from the vacuum pump and from
the service of the 3-way valves.
6. Tighten the service port caps of the 3-way valve at a torque of
18 N•m with a torque wrench.
7. Remove the valve caps of the both 3-way valves. Position both of
the valves to "OPEN" using a hexagonal wrench (4 mm).
8. Mount valve caps onto the both 3-way valves.
• Be sure to check for gas leakages.
CAUTION
If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1MPa), in step 3 above take the following measure:
•
- If the leak stops when the piping connections are tightened further, continue working from step 3.
- If the leak does not stop when the connections are retightened, repair location of leak.
- Do not release refrigerant during piping work for installation and reinstallation.
Material shall
- Take care of the liquid refrigerant, it may cause frostbite.
withstand 120°C or
higher
DISPOSAL OF OUTDOOR UNIT DRAIN WATER
•
If a drain elbow is used, the unit should be placed on a stand which is taller than 3 cm.
•
If the unit is used in an area where temperature falls below 0°C for 2 or 3 days in
succession, it is recommended not to use a drain elbow, for the drain water freezes
and the fan will not rotate.
Attached accessories Qty.
1
Drain elbow
Installation parts you
should purchase ( )
CHECK ITEMS
Short circuit of the blow-out air
Power supply cord ( )
Smooth fl ow of the drain
Reliable thermal insulation
Connection cable ( )
Leakage of refrigerant
Additional drain hose ( )
Liquid side piping ( )
Gas side piping ( )
3 /s or better.
3-way valve Outdoor Unit
Close
Indoor Unit
Liquid side
3-way valve
Close
Gas side
3-way valve
Indoor Unit
Close
Liquid side
3-way valve
Close
Vacuum pump
Gas side
adaptor
OPEN
Vacuum
pump
OPEN
Drain elbow Hose
Install the hose at an angle so that
the water smoothly fl ows out.
Mistake in wiring
Reliable connection of the grand wire
Looseness in terminal screw
Grounding/Earth connection
ENGLISH
ACXF60-06550 2/2
PRINTED IN MALAYSIA