N RDIS NFC Four Way Cassette Type Air Conditioner Instruction Manual

NFC Four Way Cassette Type Air Conditioner

INSTALLATION MANUAL

Fan Coil Of Four-way Cassette Type

Thank you very much for purchasing our air conditioner,
Before using your air conditioner , please read this manual carefully and keep it for future reference.

1. PRECAUTIONS

• Be sure to be in conformity with the local, national and
  international laws and regulations.

• Read “PRECAUTIONS” carefully before installation.

• The following precautions include important safty items.
  Observe them and never forget.

• Keep this manual in a handy place for future reference.

• Before out from factory, FAN COIL UNIT (AIR UNITS) has
  passed Fan Coil Overpressure Resistant Test, Statically
  and Dynamically Balanced Adjustment, Noise Test, Air
  (cool) Volume Test, Electric Property Test, Outline Quality
  Detection.

The safety precautions listed here are divided into two categories. In
either case, important safety information is listed which must be read
carefully.

WARNING

Failure to observe a warning may result in death.

CAUTION

Failure to observe a caution may result in injury or
damage to the equipment.

WARNING

Be sure only trained and qualified service personnel to
install, repair or service the equipment.
Improper installation, repair, and maintenance may result in
electric shocks, short-circuit, leaks, fire or other damage to
the equipment.

Install according to this installation instructions strictly.
If installation is defective, it will cause water leakage,
electrical shock and fire.

When installing the unit in a small room, take measures
against to keep refrigerant concentration from exceeding
allowable safety limits in the event of refrigerant leakage.

Contact the place of purchase for more information.
Excessive refrigerant in a closed ambient can lead to oxygen
deficiency.
Use the attached accessories parts and specified parts
for installation.
otherwise, it will cause the set to fall, water leakage,
electrical shock and fire.
The appliance must be installed 2.3m above floor.
The appliance shall not be installed in the laundry.
Before obtaining access to terminals, all supply circuits
must be disconnected.
The appliance must be positioned so that the plug is
accessible.
The enclosure of the appliance shall be marked by word,
or by symbols, with the direction of the fluid flow.

For electrical work, follow the local national wiring
standard, regulation and this installation instructions. An
independent circuit and single outlet must be used.

If electrical circuit capacity is not enough or defect in
electrical work, it will cause electrical shock fire.

Use the specified cable and connect tightly and clamp
the cable so that no external force will be acted on the
terminal.

If connection or fixing is not perfect, it will cause heat-up or
fire at the connection.

Wiring routing must be properly arranged so that control
board cover is fixed properly.

If control board cover is not fixed perfectly, it will cause
heat-up at connection point of terminal, fire or electrical
shock.

If the supply cord is damaged, it must be replaced by the
manufacture or its service agent or a similarly qualified
person in order to avoid a hazard.

An all-pole disconnection switch having a contact
separation of at least 3mm in all poles should be
connected in fixed wiring.

When carrying out piping connection, take care not to let
air substances go into refrigeration cycle.
Otherwise, it will cause lower capacity, abnormal high
pressure in the refrigeration cycle.

Do not modify the length of the power supply cord or use
of extension cord, and do not share the single outlet with
other electrical appliances.

Otherwise, it will cause fire or electrical shock.
If the water leaks during installation, ventilate the area
immediately.

After completing the installation work, check that the
water does not leak.

The cool water in the unit is not lower than 3℃, hot water is
not higher than 70℃. Water in the unit must clean, air quality
must meet to the standard of PH=6.5~7.5.

CAUTION

Before installing the unit,it is necessary to check
whether the ground wire is charged.
If it is,the unit shall not be installed before correction.

Ground the air conditioner.
Do not connect the ground wire to gas or water pipes,
lightning rod or a telephone ground wire. Incomplete
grounding may result in electric shocks.

Be sure to install an earth leakage breaker.
Failure to install an earth leakage breaker may result in
electric shocks.

Connect the outdoor unit wires , then connect the indoor
unit wires.

You are not allow to connect the air conditioner with the
power source until wiring and piping the air conditioner is
done.

While following the instructions in this installation
manual, install drain piping in order to ensure proper
drainage and insulate piping in order to prevent
condensation.

Improper drain piping may result in water leakage and
property damage.

Install the indoor and outdoor units, power supply wiring
and connecting wires at least 1 meter away from
televisions or radios in order to prevent image
interference or noise.

Depending on the radio waves, a distance of 1 meter may not
be sufficient enough to eliminate the noise.

This appliance is not intended for use by persons
(including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge,
unless they have been given supervision or instruction
concerning use of the appliance by a person responsible
for their safety.

Don’t install the air conditioner in the following locations:

• There is petrolatum existing.

• There is salty air surrounding (near the coast).

• There is caustic gas (the sulfide, for example) existing in
  the air (near a hot spring).

• The Volt vibrates violently (in the factories).

• In buses or cabinets.

• In kitchen where it is full of oil gas.

• There is strong electromagnetic wave existing.

• There are inflammable materials or gas.

• There is acid or alkaline liquid evaporating.

• Other special conditions.

2. INSTALLATION INFORMATION

• To install properly, please read this “installation manual” at first.

• The air conditioner must be installed by qualified persons.

• When installing the indoor unit and its tubing, please follow
  this manual as strictly as possible.

• If the air conditioner is installed on a metal part of the
  building, it must be electrically insulated according to the
  relevant standards to electrical appliances.

• When all the installation work is finished, please turn on the
  power only after a thorough check.

• Regret for no further announcement if there is any change
  of this manual caused by product improvement.

INSTALLATION ORDER

• Select the location;
• Install the indoor unit;
• Install the outdoor unit;
• Connect the drain pipe;
• Wiring;
• Test operation.

3. FITTINGS

3.1 Attached fittings

Please check whether the following fittings are of full scope. If there are some spare fittings , please restore them carefully.

3.2 Local purchased components

4. INSPECTING AND HANDLING THE UNIT

At delivery, the package should be checked and any damage should
be reported immediately to the carrier claims agent.
When handling the unit, take into account the following:

1. Fragile, handle the unit with care.

2. Choose on before hand the path along which the unit is to be
   brought in.

3. Move this unit as originally package as possible.

4. When lifting the unit , always use protectors to prevent belt
   damage and pay attention to the position of the unit’s centre of
   gravity.

5. INDOOR UNIT INSTALLATION

5.1 Installation place

(refer to fig.5-1,fig.5-2,fig.5-3 and table 5-1 for specification.)

The indoor unit should be installed in a location that meets
the following requirements:

• There is enough room for installation and maintenance.
• The ceiling is horiztal, and its structure can endure the weight of the indoor unit.
• The outlet and the inlet are not impeded, and the influence of external air is the least.
• The air flow can reach throughout the room.
• The connecting water pipe and drainpipe could be extracted out easily.
• There is no direct radiation from heaters.

CAUTION

Keep indoor unit, outdoor unit, power supply wiring and
transmission wiring at least 1 meter away from televisions
and radios. This is to prevent image interference and
noise in those electrical appliances. (Noise may be
generated depending on the conditions under which the
electric wave is generated, even if 1 meter is kept.)

Before installing the unit, be sure to confirm with the user
whether there are wires, water pipes, air pipes and so on in
the wall or ground of the installation site to avoid accidents
due to damage.

5.2 Installation procedures for fresh air
intake duct connection

Preparing the connection hole
• Cut off the knockout hole on the side plate with a nipper.
• Cut the inner insulation of the hole portion with a cutter. (refer to fig.5-4)

Placing the insulation
• Put the insulation tightly around the hole of the unit as shown.
The ends of the side plate and the inner insulation must be
completely adhered without leaving any clearance along the
circumference of the hole.
Make sure the inner surface of insulation tightly contacts the
inner insulation edge and the side plate. (refer to fig.5-5)

5.3 Install the main body
The existing ceiling (to be horizontal)

1 Cut a quadrangular hole of 880x880mm in the ceiling
according to the shape of the installation paper board.

• The center of the hole should be at the same position of
  that of the air conditioner body.

• Determine the lengths and outlets of the connecting pipe,
  drainpipe and cables.

• To balance the ceiling and to avoid vibration, please
  enforce the ceiling when necessary.

2 Select the position of installation hooks according to the
hook holes on the installation board.

• Drill four holes of 12mm, 50~55mm deep at the selected
  positions on the ceiling. Then embed the expansible
  hooks (fittings).

• Face the concave side of the installation hooks toward the
  expansible hooks. Determine the length of the installation
  hooks from the height of ceiling, then cut off the
  unnecessary part.

• If the ceiling is extremely high, please determine the
  length of the installation hook according to facts.

3 Adjust the hexangular nuts on the four installation hooks
evenly, to ensure the balance of the body.

• If the drainpipe is awry, leakage will be caused by the
  malfunction of the water-level switch.

• Adjust the position to ensure the gaps between the body
  and the four sides of ceiling are even. The body’s lower
  part should sink into the ceiling for 10~12 mm (refer to
  fig.5-6. )

• In general, L is half of the screw length of the installation
  hook.(refer to fig.5-6)

• Locate the air conditioner firmly by wrenching the nuts
  after having adjusted the body’s position well.(refer to
  fig.5-7)

New built houses and ceilings

1 In the case of new built house, the hook can be embedded
in advance (refer to 2 mentioned above). But it should be
strong enough to bear the indoor unit and will not become
loose because of concrete shrinking.

2 After installing the body, please fasten the installation paper
board onto the air conditioner with bolts(M6X12) to
determine in advance the sizes and positions of the hole
opening on ceiling.(refer to fig.5-8)

• Please first guarantee the flatness and horizontal of
  ceiling when installing it.

• Refer to 1 mentioned above for others.

3 Refer to 3 above for installation.

4 Remove the installation paper board.

CAUTION

After installing the body, the four bolts(M6x12)must be
fastened to the air conditioner onto ensure the body is
grounded well.

FIGURES

NOTE

All the pictures in this manual are for explanation purpose only. They may be slightly different from the air conditioner you
purchased(depend on model).The actual shape shall prevail.

5.4 Install The Panel

CAUTION

Never put the panel face down on floor or against the
wall, or on bulgy objects.
Never crash or strike it.

1 Remove the air-in grill.

• Slide two grill switches toward the middle at the same time,
  and then pull them up. (Refer to fig.5-9)

• Draw the grill up to an angle of about 45, and remove it.
  (Refer to fig.5-10)

2 Remove the installation covers at the four corners

• Wrench off the bolts, loose the rope of the installation covers,
  and remove them. (Refer to fig.5-11)

3 Install the panel

• Align the swing motor on the panel to the tubing joints of the
  body properly.

• Fix hooks of the panel at swing motor and its opposite sides
  to the hooks of corresponding water receiver. Then hang the
  other two panel hooks onto corresponding hangers of the
  body.

CAUTION

Do not coil the wiring of the swing motor into the seal
sponge.

■ Adjust the four panel hook screws to keep the panel
horizontal, and screw them up to the ceiling evenly.

■ Regulate the panel in the direction of the arrow slightly to fit
the panel’s center to the center of the ceiling’s opening.
Guarantee that hooks of four corners are fixed well.

■  Keep fastening the screws under the panel hooks, until the
thickness of the sponge between the body and the panel’s
outlet has been reduced to about 4~6mm. The edge of the
panel should contact with the ceiling well.

• If the gap between the panel and ceiling still exists after
  fastening the screws, the height of the indoor unit should
  be modified again.

• You can modify the height of the indoor unit through the
  openings on the panel’s four corners, if the lift of the
  indoor unit and the drainpipe is not influenced .

4 Hang the air-in grill to the panel, then connect the lead
terminator of the swing motor and that of the control box
with corresponding terminators on the body respectively.

5 Relocate the air-in grill in the procedure of reversed order.

6 Relocate the installation cover.

■  Fasten the rope of installation cover on the bolt of the
installation cover.
■  Press the installation cover into the panel slightly.

6. CONNECT THE DRAIN PIPE

6.1 Install the drain pipe of indoor unit

1. The drainpipe can use PVC pipe (external diameter about 37～39mm, inner diameter is 32mm).
2. Joint drainpipe connector to the end side of water pumping pipe, and fix drainpipe together with water outflow pipe and thermal insulation tube by clasp of water outflow pipe (attached).

CAUTION

Don’t use forcing strength to crack the water-pumping pipe.

3. Water-pumping pipe and drainpipe from main body must be
   wrapped by insulation tube evenly, and bound by tighten band for
   obstructing air getting in and coagulation.
4. Prevent from water backflow into unit inside during shutdown,
   the drain pipe shall place down side and drain water to outdoor
   (drain side), the gradient of the drain pipe should be higher than
   (1/100), without salient and water remain.(Refer to Fig.6-1 a)
5. When connecting drainpipe, don’t drag the pipe that would pull
   the main unit. For this, please arrange bearing points every 0.8 to
   1.0 meter to avoid pipe be bended (See Fig.6-1 b).
6. When connect a lengthen drainpipe, apply protective tube to
   wrap its indoor parts for ensuring the lengthen part connected
   tightly.
7. In case the drainpipe outlet is higher than pumping connective
   pipe of the main body, the drainpipe must be arranged upwards
   vertically by using connective assembly of the water outlet for
   vertical bending, and the height of the drainpipe shall set to the
   defrosting pan surface no more than 1000mm, otherwise, too much
   backflow while shutdown would leads to overflow (Refer to
   Fig.6-2).
8. Base on the actual requirement to bend piping, and use
   connective assembly of water outlet in terminal box for pipe layout.

CAUTION

The joints in drain system must be sealed to avoid water leakage.

9. The height from floor to the end of drainpipe or the bottom of
   drain slot must more than 50 mm. Don’t immerse the end of
   drainpipe or the bottom of drain slot into water. When drain
   condensate liquid to raceway, please bend the drainpipe to a
   U-sharped hydroseal for avoiding stench transmitted by drainpipe
   to indoor.

NOTE

All the pictures in this manual are for explanation
purpose only. They may be slightly different from the air
conditioner you purchased(depend on model).The
actual shape shall prevail.

6.2 Drainage test

■ Check whether the drainpipe is unhindered
■ New built house should have this test done before paving the ceiling.

1 Remove the test cover, and stow water of about 2000ml
to the water receiver through the stow tube. (Refer to Chart 19)
2 Turn on the power, and operate the air conditioner
under the “COOLING” mode. Listen to the sound of the
drain pump. Check whether the water is discharged well (a
lag of 1min is allowed before discharging, according to the
length of the drain pipe), and check whether water
leaks from the joints.
CAUTIONS: If there is any malfunction, please resolve it
immediately.
3 Stop the air conditioner for there minutes, check if
everything is ok. If the drain hose is located unreasonable,
water overflow will cause the Alarm indicator lamp flashing
(For both cooling and heating type or cooling only type),
even the water leak out from the water receiver.
4 Check the drain pump whether drain water immediately
when alarm sound for the high water lever. If the water
lever can’t come down below to the limited water lever, the
air conditioner will stop. Restart it until turn off the power
and drain off all the water.
5 Turn off the power, drain the water away.

■ The drain plug is used to empty the water-receiver for maintenance
of the air conditioner. Please stuff it imposition at all times during
operation to avoid leakage.

7. WIRING

CAUTION

The air conditioner should use separate power supply with
rated voltage.

The external power supply to the air conditioner should
have ground wiring, which is linked to the ground wiring of
the indoor and outdoor unit.

The wiring work should be done by qualified persons
according to circuit drawing.
an all-pole disconnection device which has at least 3mm
separation distance in all pole and a residual current
device(RCD)with the rating of above 10mA shall be
incorporated in the fixed wiring according to the national
rule.

The appliance shall be installed in accordance with
national wiring regulations.

Be sure to locate the power wiring and the signal wring well
to avoid cross-disturbance.

Do not turn on the power until you have checked carefully
after wiring.

NOTE

Remark per EMC Directive 2004/108/EC
For to prevent flicker impressions during the start of the
compressor (technical process), following installation
conditions do apply.

1. The power connection for the air conditioner has to be
   done at the main power distribution. The distribution has
   t o b e o f al o w impedance, normally t h e required
   impedance reaches at a 32 A fusing point.

2. No other equipment has to be connected with this power
   line.

3. For detailed installation acceptance please refer to your
   power supplier, if restrictions do apply for products like
   washing machines, air conditioners or electrical ovens.

4. For power details of the air conditioner refer to the rating
   plate of the product.

5. For any question contact your local dealer.

7.1 Connect the cable

■ Dissemble the bolts from the cover.(If there isn’t a cover on
the outdoor unit, disassemble the bolts from the maintenance
board, and pull it in the direction of the arrow to remove the
protection board.)
■ Connect the connective cables to the terminals as identified
with their respective mached numbers on the terminal block
of indoor and outdoor units.
■ Re-install the cover or the protection board.

■ Table 7-1

The power cord type designation is H05RN-F or above.

7.2 Wiring figure

NOTE

If the supply cord is damaged, it must be replaced by the manufacturer
or its service agent or a similarly qualified person in order to avoid a hazar

8. TEST OPERATION

1 The test operation must be carried out after the entire
installation has been completed.
2 Please confirm the following points before the test operation:

• The indoor unit and outdoor unit are installed properly.

• Tubing and wiring are correctly completed.

• The water pipe system is leakage-checked.the drainage is
  unimpeded.

• The heating insulation works well.

• The ground wiring is connected correctly.

• The length of the tubing has been recorded.

• The power voltage fits the rated voltage of the air
  conditioner.

• There is no obstacle at the outlet and inlet of the outdoor
  and indoor units.

• The air conditioner is pre-heated by turning on the power.

3 According to the user’s requirement, install the remote
controller frame where the remote controller’s signal can
reach the indoor unit smoothly.

4 Test operation

Set the air conditioner under the mode of “COOLING” with the
remote controller, and check the following points. If there is
any malfunction, please resolve it according to the chapter
“Troubleshooting” in the “Owner’s Manual”.
a. Whether the switch on the remote controller works well.
b. Whether the buttons on the remote controller works
well.
c. Whether the air flow louver moves normally.
d. Whether the room temperature is adjusted well.
e. Whether the indicator lights normally.
f. Whether the temporary buttons works well.
g. Whether the drainage is normal.
h. Whether there is vibration or abnormal noise during
operation.
I. Whether the air conditioner heats well in the case of the
HEATING/COOLING type.

CAUTION

A protection feature prevents the air conditioner from being
activated for approximately 3 minutes when it is restarted
immediately after shut off.

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