Wind shield

Wind shield

500 or more
200 or more

Necessary space for

installation

(Unit: mm)

Obstacle at rear side

Upper side is free 1. Single unit installation

Obstacle in front
Above unit is free 1. Single unit installation

500 or more

200 or more
150 or more

2. Obstacles on both right and left sides
The height of the obstacle should be lower than the height of the outdoor unit.

150 or more

300 or more

3. Serial installation of two or more units

2. Serial installation of two or more units
Obstacle also at the above unit 1,000 or more

150 or more

300 or more

300 or more

300 or more

The height of the obstacle should be lower than the height of the outdoor unit.

Obstacle also above unit

150 or more

1,000 or more

1,000 or more

10-EN

Obstacles in both front and rear of unit
Open above and to the right and left of the unit. The height of an obstacle in both the front and rear of the unit, should be lower than the height of the outdoor unit.
Standard installation 1. Single unit installation

150 or more

Installation of outdoor unit
Before installation, check the strength and horizontalness of the base so that abnormal sounds do not emanate. According to the following base diagram, fix the base firmly with the anchor bolts. (Anchor bolt, nut: M10 × 4 pairs)

(Unit: mm)

Drain hole 525

150

600

150

45

Set the out margin of the anchor bolt to 15 mm or less.
15 mm or less
When water is to be drained through the drain hose, attach the following drain nipple and waterproof rubber cap, and use the drain hose (Inner dia.: 16 mm) sold on the market. Also seal knockout hole and the screws securely with silicone material, etc., to prevent water from leaking. Some conditions may cause dewing or dripping of water. When collectively draining discharged water completely, use a drain pan.

400 365

1,000 or more

2. Serial installation of two or more units

200 or more

1,000 o r
more

300 or more

300 or more

Serial installation in front and rear
Open above and to the right and left of the unit. The height of an obstacle in both the front and rear of the unit, should be lower than the height of the outdoor unit.
Standard installation

Drain hole
Drain nipple mounting hole

As shown in the figure below, install the foundation and vibration-proof rubber pads to directly support the bottom surface of the fixing leg that is in contact with and underneath the bottom plate of the outdoor unit. * When installing the foundation for an outdoor unit with downward piping, consider the piping work.

Correct

Fixing leg

Absorb vibration with vibration-proof
rubber pads

Foundation

Correct

Bottom plate of outdoor unit

1,000 or 300 or 1,500 or

more more

more

2,000 or more

200 or more

Foundation
Support the bottom surface of the fixing leg that is in contact with and underneath
the bottom plate of the outdoor unit.

If only the end of the fixing leg is supported, it may
deform.

Incorrect
Do not support the outdoor unit only with the fixing leg.

Foundation

11-EN

Drain nipple

Waterproof rubber cap (5 pcs.)

Knockout hole

Drain nipple Waterproof rubber cap

For reference
If a heating operation is to be continuously performed for a long time under the condition that the outdoor temperature is 0°C or lower, draining defrosted water may be difficult due to the bottom plate freezing, resulting in trouble with the cabinet or fan. It is recommended to procure an anti-freeze heater locally in order to safely install the air conditioner. For details, contact the dealer.
WARNING
Be sure to install the outdoor unit in a place able to bear its weight. If strength is insufficient, the unit may fall down resulting in human injury. Perform specified installation work to protect against strong wind and earthquakes. If the outdoor unit is imperfectly installed, an accident by falling or dropping may be caused.

­ 6 ­

EN
12-EN

4 Refrigerant piping

Refrigerant Piping
1. Use the following items for the refrigerant piping. Material : Seamless phosphorous deoxidized copper pipe. Ø9.52 Wall thickness 0.8 mm or more Ø15.88 Wall thickness 1.0 mm or more Do not use any copper pipes with a wall thickness less than these thicknesses.

Removing service panel
Remove the screws at 2 locations and slide the service panel down. Next, detach the right-side claws followed by left-side claws to remove the service panel. When doing this, pulling the service panel towards the front could damage the claws. When attaching the service panel, attach the left claws followed by the right claws and lift the service panel upwards and secure it with screws in the 2 locations.

Left-side claws

(1) (2)
(3)

Service panel
Right-side plate
Right-side claws

­ 7 ­

Knockout of pipe cover
Knockout procedure
Rear direction
Pipe cover Side direction
Front direction Down direction
The indoor / outdoor connecting pipes can be connected in 4 directions. Take off the knockout part of the pipe cover through which pipes or wires will pass through the base plate. Detach the pipe cover and tap on the knockout section a few times with the shank of a screwdriver. A knockout hole can easily be punched. After punching out the knockout hole, remove burrs from the hole and then install the supplied protective bush and guard material around the passage hole to protect wires and pipes. Be sure to attach the pipe covers after pipes have been connected. Cut the slits under the pipe covers to facilitate the installation. After connecting the pipes, be sure to mount the pipe cover. The pipe cover is easily mounted by cutting off the slit at the lower part of the pipe cover.

• Be sure to wear heavy work gloves while working.

Supplied protective bush

Supplied passage hole guard material * Attach the guard material
securely so that it does not come loose.

Optional installation parts (Locally procured)

Parts name

Refrigerant piping A Liquid side: Ø9.5 mm
Gas side: Ø15.9 mm

B

Pipe insulating material (polyethylene foam, 10 mm thick)

C Putty, PVC tape

Q’ty One each
1 One each

Refrigerant piping connection

Flaring
1. Cut the pipe with a pipe cutter. Be sure to remove burrs that may cause a gas leak.
2. Insert a flare nut into the pipe, and then flare the pipe. Use the flare nuts supplied with the air conditioner or those for R32. Insert a flare nut into the pipe, and flare the pipe. Use the flare nuts supplied with the air conditioner or flare nuts for R32 or R410A. However, the conventional tools can be used by adjusting the projection margin of the copper pipe.
Projection margin in flaring: B (Unit: mm)
B

RIDGID (Clutch type)

Outer dia. of copper pipe

R32/R410A tool used

9.5 0 to 0.5
15.9

Conventional tool used
1.0 to 1.5

CAUTION
IMPORTANT 4 POINTS FOR PIPING WORK 1. Reusable mechanical connectors and flared
joints are not allowed indoors. When mechanical connectors are reused indoors, sealing parts shall be renewed. When flared joints are reused indoors, the flare part shall be refabricated. 2. Tight connection (between pipes and unit) 3. Evacuate the air in the connecting pipes by using VACUUM PUMP. 4. Check the gas leakage. (Connected points)

Piping connection Liquid side
Outer diameter Ø9.5 mm

Thickness 0.8 mm

Gas side Outer diameter
Ø15.9 mm

Thickness 1.0 mm

Flaring dia. size: A (Unit: mm) A

Outer dia. of copper pipe 9.5 15.9

+0 A ­0.4
13.2 19.7

CAUTION
Do not scratch the inner surface of the flared part when removing burrs. Flare processing under the condition of scratches on the inner surface of flare processing part will cause refrigerant gas leak. Check that the flared part is not scratched, deformed, stepped, or flattened, and that there are no chips adhered or other problems, after flare processing. Do not apply refrigerating machine oil to the flare surface.

13-EN

14-EN

Tightening of connecting part

1 Align the centers of the connecting pipes and fully tighten the Àare nut with your ¿ngers. Then ¿x the nut with a wrench as shown in the ¿gure and tighten it with a torque wrench.

Half union or packed valve

Flare nut

CAUTION
y Do not put the crescent wrench on the cap or cover. The valve may break.
y If applying excessive torque, the nut may break according to some installation conditions. Cap
Incorrect

Externally threaded side

Internally threaded side

Fix with wrench.

Tighten with torque wrench.

2 As shown in the ¿gure, be sure to use two wrenches to loosen or tighten the Àare nut of the valve on the gas side. If you use a
single crescent, the Àare nut cannot be tightened to the required tightening torque.
On the other hand, use a single crescent to
loosen or tighten the Àare nut of the valve on the liquid side.

Outer dia. of copper pipe 9.5 mm (dia.) 15.9 mm (dia.)

(Unit: N·m) Tightening torque 34 to 42 (3.4 to 4.2 kgf·m) 63 to 77 (6.3 to 7.7 kgf·m)

Flare nut
· After the installation work, be sure to check for gas leaks of the pipe connections with nitrogen.
· Therefore, using a torque wrench, tighten the Àare pipe connecting sections that connect the indoor/ outdoor units at the speci¿ed tightening torque. Incomplete connections may cause not only a gas leak, but also trouble with the refrigeration cycle. Do not apply refrigerating machine oil to the Àared surface.

Cap Loosened

Flare nut Tightened

Refrigerant pipe length
Single

Allowable pipe length (m) Total length L 30

Height difference (Indoor-outdoor H) (m)

Indoor unit: Upper

Outdoor unit: Lower

30

30

Gas side Ø15.9

Pipe diameter (mm)

Liquid side Ø9.5

Number of bent portions 10 or less

Indoor unit

L H

Outdoor unit

15-EN

­ 8 ­

EN
16-EN

5 Air purging

Airtight test

After completing the refrigerant piping work, perform an airtight test. Connect a nitrogen gas cylinder and pressurize the pipes with nitrogen gas as follows to conduct the airtight test.

Low pressure gauge

High pressure gauge

Charge port

VL VH Gauge manifold

CAUTION
Never use oxygen, flammable gas, or noxious gas for the airtight test.

Pressure reducing valve

Nitrogen gas

Gas leak check

Step 1….Pressurize to 0.5 MPa (5 kg/cm²G) for 5 minutes or longer. Step 2….Pressurize to 1.5 MPa (15 kg/cm²G) for 5 minutes or longer.

Major leaks can be discovered.

Step 3….Pressurize to 4.15 MPa (42 kg/cm²G) for 24 hours. ……………. Micro leaks can be discovered.

(However, note that when the ambient temperature differs during pressurization and after 24 hours, the pressure will change by approximately 0.01 MPa (0.1 kg/cm²G) per 1°C, so this should be compensated.)

If the pressure drops in steps 1 through 3, check the connections for leakage. Check for leaks with foaming liquid, etc., take steps to fix the leaks such as brazing the pipes again and tightening the flare nuts, and then perform the airtight test again.

• After the airtight test is completed, evacuate the nitrogen gas.

Air purge

With respect to the preservation of the terrestrial environment, adopt “Vacuum pump” to purge air (Evacuate air in the connecting pipes) when installing the unit.
Do not discharge the refrigerant gas to the atmosphere to preserve the terrestrial environment. Use a vacuum pump to discharge the air (nitrogen, etc.) that remains in the set. If air remains, the capacity may decrease. For the vacuum pump, be sure to use one with a backflow preventer so that the oil in the pump does not backflow into the pipe of the air conditioner when the pump stops. (If oil in the vacuum pump is put in an air conditioner including R32, it may cause trouble with the refrigeration cycle.)

Compound pressure gauge
­101 kPa (­76 cmHg)

Pressure gauge Gauge manifold valve

Handle Low
Charge hose (For R32/R410A)

Handle High (Keep fully closed)
Charge hose (For R32/R410A)
Vacuum pump adapter for counterflow prevention (For R32/R410A)

Charge port (Valve core (Setting pin))

Vacuum pump
Packed valve at gas side

­ 9 ­

Vacuum pump
As shown in the figure, connect the charge hose after the manifold valve is closed completely.
Attach the connecting port of the charge hose with a projection to push the valve core (setting pin) to the
charge port of the set.
Open Handle Low fully.
Turn ON the vacuum pump. (1)
Loosen the flare nut of the packed valve (Gas side)
a little to check that the air passes through. (2)
Retighten the flare nut.
Execute vacuuming until the compound pressure gauge indicates ­101 kPa (­76 cmHg). (1)
Close Handle Low completely.
Turn OFF the vacuum pump.
Leave the vacuum pump as it is for 1 or 2 minutes, and check that the indicator of the compound pressure gauge
does not return.
Open the valve stem or valve handle fully. (First, at liquid side, then gas side)
Disconnect the charge hose from the charge port.
Tighten the valve and caps of the charge port securely.
1: Use the vacuum pump, vacuum pump adapter, and gauge manifold correctly referring to the manuals supplied with each tool before using them. Check that the vacuum pump oil is filled up to the specified line of the oil gauge.
*2: When air is not charged, check again whether the connecting port of the discharge hose, which has a projection to push the valve core, is firmly connected to the charge port.

Pump down process
1. Turn off the Air Conditioner system. 2. Connect the charge hose from the manifold valve
to the service port of the packed valve at gas side. 3. Turn on the Air Conditioner system in cooling
operation more than 10 minutes. 4. Check the operating pressure of the system should
be normal value. (Ref. with product specification) 5. Release the valve rod cap of both service valves. 6. Use the Hexagon wrench to turning the valve rod of Liquid side fully close. (*Make sure no entering air into the system) 7. Continue operate Air Conditioner system until the gauge of manifold dropped into the range of 0.5 – 0 kgf/cm². 8. Use the Hexagon wrench to turning the valve rod of Gas side fully close. And turn off the Air Conditioner system immediately thereafter. 9. Remove the gauge manifold from the service port of the packed valve. 10. Securely tighten the valve rod cap to the both service valves.
CAUTION
Should be check the compressor operating condition while pumping down process. It must not any abnormal sound, more vibration. It is abnormal condition appears and must turn off the Air Conditioner immediately.

17-EN

18-EN

How to open the valve
Fully open the valves of the outdoor unit. (First fully open the valve on the liquid side, and then fully open the valve on the gas side.) Do not open or close the valves when the ambient
temperature is -20°C or less. Doing so may damage the valve O-rings and result in refrigerant leakage.
Liquid side Open the valve with a 4 mm hexagon wrench.
Gas side Open the valve with a 5 mm hexagon wrench.
Valve handling precautions Open the valve stem until it strikes the stopper.

• Securely tighten the cap with a torque wrench.
  Charge port

Cap

Flare nut

Cap tightening torque

Valve size

Ø9.5 mm Ø15.9 mm

Charge port

34 to 42 N·m (3.4 to 4.2 kgf·m)
34 to 42 N·m (3.4 to 4.2 kgf·m)
14 to 18 N·m (1.4 to 1.8 kgf·m)

Valve handling precautions y Open the valve stem until it strikes the stopper.
It is unnecessary to apply further force. y Securely tighten the cap with a torque wrench.

19-EN

Gas leak inspection
Use a leak detector manufactured specially for HFC refrigerant (R32, R410A, R134a, etc.) to perform the R32 gas leak inspection.

• Leak detectors for conventional HCFC refrigerant (R22, etc.) cannot be used, as the sensitivity drops to approximately 1/40 when used for HFC refrigerant.
  y R32 has a high working pressure, so failure to perform the installation work properly may result in gas leaks such as when the pressure rises during operation. Be sure to perform leak tests on the piping connections.

Indoor unit inspection locations (piping connections) Refrigerant piping
Indoor unit side piping

Outdoor unit inspection locations

Insulating the Pipes
y The temperatures at both the liquid side and gas side will be low during cooling so in order to prevent condensation, be sure to insulate the pipes at both of these sides.
y Insulate the pipes separately for the liquid side and gas side.
y Insulate the branch pipes by following the instructions in the installation manual provided with the branch pipe kit.

REQUIREMENT
Be sure to use an insulating material which can withstand temperatures above 120°C for the gas side pipe since this pipe will become very hot during heating operations.

­ 10 ­

EN
20-EN

6 Electrical work
WARNING
1 Using the specified wires, ensure that the
wires are connected, and fix wires securely so that the external tension to the wires does not affect the connecting part of the terminals. Incomplete connection or fixation may cause a fire, etc.
2 Be sure to connect the earth wire.
(grounding work) Incomplete grounding may lead to electric shock. Do not connect ground wires to gas pipes, water pipes, lightning rods or ground wires for telephone wires.
3 The appliance shall be installed in
accordance with national wiring regulations. Capacity shortages of the power circuit or an incomplete installation may cause an electric shock or fire.
CAUTION
An installation fuse must be used for the power supply line of this air conditioner. Incorrect / incomplete wiring may lead to an electrical fire or smoke. Prepare an exclusive power supply for the air conditioner. This product can be connected to the mains power. Fixed wire connections: A switch that disconnects all poles and has a contact separation of at least 3 mm must be incorporated in the fixed wiring. Be sure to use the cord clamps attached to the product. Do not damage or scratch the conductive core or inner insulator of the power and Indoor / Outdoor connecting wires when peeling them. Use the power and Indoor / Outdoor connecting wires with specified thicknesses, specified types and protective devices required.

­ 11 ­

Remove the service panel, and you can see electric parts on the front side. A conduit pipe can be installed through the hole for wiring. If the hole size does not fit the wiring pipe to be used, drill the hole again to an appropriate size. Be sure to clamp the power wires and Indoor / Outdoor connecting wires with a banding band along the connecting pipe so that the wires do not touch the compressor or discharge pipe. (The compressor and the discharge pipe become hot.)

Screws
Electrical control box cover

Cord clamp
Pipe hole

Service panel

Wiring between indoor unit and outdoor unit

The dashed lines show on-site wiring.

(Main circuit)

(Indoor / Outdoor connecting wires)

Input power

L

1

N

2

3

1

2

3

Remote

controller

Outdoor unit Earth
Circuit breaker

Indoor unit

Connect the Indoor / Outdoor connecting wires to the identical terminal numbers on the terminal block of each unit. Incorrect connection may cause a failure.

For the air conditioner, connect a power wire with the following specifications.

Model RAV-
Power supply
Maximum running current Installation fuse rating
Power supply wire
Indoor / Outdoor connecting wires

GV1401 220-240 V~, 50 Hz
220 V~, 60 Hz
24.80 A
30 A (all types can be used) H07 RN-F or 60245 IEC 66
(4 mm² or more) H07 RN-F or 60245 IEC 66
(1.5 mm² or more)

How to wire
1. Connect the power supply wires and Indoor / Outdoor connecting wires to the terminal block of the electrical control box.
2. Tighten the screws of the terminal block, connect the wires matching the terminal numbers (Do not apply tension to the connecting section of the terminal block.) When connecting the Indoor / Outdoor connecting wires to the outdoor unit terminal, prevent water from coming into the outdoor unit. Insulate the unsheathed cords (conductors) with electrical insulation tape. Process them so that they do not touch any electrical or metal parts. For Indoor / Outdoor connecting wires, do not use a wire joined to another on the way. Use wires long enough to cover the entire length.

To Indoor unit terminal block

Power supply terminal block

Earth screw

1 23

Earth screw

L

N

Pipe valve fixing plate

Indoor / Outdoor connecting wires

Power supply wire

Stripping length power cord and Indoor / Outdoor connecting wires

10 1 2 3 10

10 L N
10

50 Earth wire

30

50

40

(mm)

Earth wire

(mm)

Indoor / Outdoor connecting wires

Power supply wire

Wiring diagram

• For details on the remote controller wiring / installation, refer to the Installation Manual enclosed with the remote controller.

Single system Remote controller Remote controller wiring
Indoor side
Indoor / Outdoor connecting wires Outdoor side

AB 123
123 LN
Power supply

21-EN

22-EN

7 Earthing
WARNING
Be sure to connect the earth wire. (grounding work) Incomplete grounding may cause an electric shock.
Connect the earth wire properly following applicable technical standards. Connecting the earth wire is essential to preventing electric shock and to reducing noise and electrical charges on the outdoor unit surface due to the high-frequency wave generated by the frequency converter (inverter) in the outdoor unit. If you touch the charged outdoor unit without an earth wire, you may experience an electric shock.
8 Finishing
After the refrigerant pipe, inter-unit wires, and drain pipe have been connected, cover them with finishing tape and clamp them to the wall with off- the-shelf support brackets or their equivalent. Keep the power wires and system interconnection wires off the valve on the gas side or pipes that have no heat insulator.
9 Test run
Turn on the leakage breaker at least 12 hours before starting a test run to protect the compressor during startup. To protect the compressor, power is supplied from the 220-240 VAC input to the unit to preheat the compressor. Check the following before starting a test run:
That all pipes are connected securely without leaks. That the valve is open. If the compressor is operated with the valve closed, the outdoor unit will become overpressurized, which may damage the compressor or other components. If there is a leak at a connection, air can be sucked in and the internal pressure further increases, which may cause a burst or injury. Operate the air conditioner in the correct procedure as specified in the Owner’s Manual.
10 Annual maintenance
For an air conditioning system that is operated on a regular basis, cleaning and maintenance of the indoor / outdoor units are strongly recommended. As a general rule, if an indoor unit is operated for about 8 hours daily, the indoor / outdoor units will need to be cleaned at least once every 3 months. This cleaning and maintenance should be carried out by a qualified service person. Failure to clean the indoor / outdoor units regularly will result in poor performance, icing, water leaking and even compressor failure.

11 Air conditioner operating conditions

For proper performance, operate the air conditioner under the following temperature conditions:

Cooling operation Heating operation

Dry bulb temp. Wet bulb temp.

­15 °C to 46 °C ­15 °C to 15 °C

If air conditioner is used outside of the above conditions, safety protection may work.

12 Functions to be implemented locally

Handling existing pipe

When using the existing pipe, carefully check for the following: Wall thickness (within the specified range) Scratches and dents Water, oil, dirt, or dust in the pipe Flare looseness and leakage from welds Deterioration of copper pipe and heat insulator
Cautions for using existing pipe
Do not reuse a flare nut to prevent gas leaks. Replace it with the supplied flare nut and then process it to a flare. Blow nitrogen gas or use an appropriate means to keep the inside of the pipe clean. If discolored oil or much residue is discharged, wash the pipe. Check welds, if any, on the pipe for gas leaks.

When the pipe corresponds to any of the following, do not use it. Install a new pipe instead. The pipe has been opened (disconnected from indoor unit or outdoor unit) for a long period. The pipe has been connected to an outdoor unit that does not use refrigerant R32, R410A. The existing pipe must have a wall thickness equal to or larger than the following thicknesses.

Reference outside diameter (mm) Ø9.5 Ø15.9 Ø19.0

Wall thickness (mm)
0.8 1.0 1.0

Do not use any pipe with a wall thickness less than these thicknesses due to insufficient pressure capacity.

23-EN

­ 12 ­

24-EN

­ 13 ­

Refrigerant recovery
When recovering the refrigerant in situations such as when relocating an indoor unit or outdoor unit, the recovery operation can be performed by operating the SW01 and SW02 switches on the P.C. board of the outdoor unit. A cover for the electric parts has been installed in order to provide protection from electric shocks while work is being performed. Operate the service switches and check the LED displays with this electric parts cover in place. Do not remove this cover while the power is still on.
DANGER
The entire P.C. board of this air conditioner system is a high-voltage area. When operating the service switches with the power of the system left on, wear electrically insulated gloves.

LED displays

Service switches SW01, SW02

D800 D801 D802 D803 D804 D805
(Yellow) (Yellow) (Yellow) (Yellow) (Yellow) (Green)
· There are four LEDs display patterns. : ON : OFF : Rapid Àashing (5 times/sec.) : Slow Àashing (1 time/sec.)

y In the initial LED display status, D805 is lighted as shown on the table below. If the initial status is not established (if D805 is Àashing), hold down the SW01 and SW02 service switches simultaneously for at least 5 seconds to return the LED displays to the initial status.

LED display initial status

D800 (Yellow)

D801 (Yellow)

D802 (Yellow)

D803 (Yellow)

D804 (Yellow)

or

or

or

or

or

OFF or

Rapid Àashing

OFF

or

Rapid Àashing

OFF

or

Rapid Àashing

OFF

or

Rapid Àashing

OFF

or

Rapid Àashing

D805 (Green)
ON

Steps taken to recover the refrigerant
1. Operate the indoor unit in the fan mode. 2. Check that the LED displays are placed in their initial status. If not, place them in the initial status. 3. Hold down SW01 for at least 5 seconds, and check that D804 Àashes slowly. (Fig. 1) 4. Press SW01 once to set the LED displays (D800 to D805) to the “refrigerant recovery LED display” shown
below. (Fig. 2)

(Fig. 1) LED displays indicated when step 3 is taken
D800 D801 D802 D803 D804 D805

(Fig. 2) D800

Refrigerant recovery LED display D801 D802 D803 D804

D805

: ON, : OFF, : Slow Àashing

: ON, : OFF, : Rapid Àashing

5. Press SW02 to set D805 to rapid Àashing. (Each time SW02 is pressed, D805 is switched between rapid Àashing and OFF.) (Fig. 3)
6. Hold down SW02 for at least 5 seconds, and when D804 Àashes slowly and D805 lights, the forced cooling operation is started. (Max. 10 minutes) (Fig. 4)

(Fig. 3) LED displays indicated when step 5 is taken
D800 D801 D802 D803 D804 D805

(Fig. 4) LED displays indicated when step 6 is taken
D800 D801 D802 D803 D804 D805

: ON, : OFF, : Rapid Àashing

: ON, : OFF, : Slow Àashing

7. After operating the system for at least 3 minutes, close the valve on the liquid side. 8. After the refrigerant has been recovered, close the valve on the gas side. 9. Hold down SW01 and SW02 simultaneously for at least 5 seconds. The LED displays are returned to the initial
status, and the cooling operation and indoor fan operation stop. 10. Turn off the power. * If there is any reason to doubt whether the recovery was successful in the course of this operation, hold down
SW01 and SW02 simultaneously for at least 5 seconds to return to the initial status, and then repeat the steps for recovering the refrigerant.

25-EN

26-EN

Existing piping

The following settings are required when using a pipe Ø19.1 mm as the existing piping at the gas pipe side.

Steps taken to support existing piping
1. Set the circuit breaker to the ON position to turn on the power. 2. Check that the LED displays are placed in their initial status. If not, place them in the initial status. 3. Hold down SW01 for at least 5 seconds, and check that D804 Àashes slowly. (Fig. 5) 4. Press SW01 four times to set the LED displays (D800 to D805) to the “LED displays for existing piping settings”
shown below. (Fig. 6)

(Fig. 5) LED displays indicated when step 3 is taken
D800 D801 D802 D803 D804 D805

(Fig. 6) LED displays for existing piping settings
D800 D801 D802 D803 D804 D805

: ON, : OFF, : Slow Àashing

: ON, : OFF, : Rapid Àashing

5. Press SW02 to set D805 to rapid Àashing. (Each time SW02 is pressed, D805 is switched between rapid Àashing and OFF.) (Fig. 7)
6. Hold down SW02 for at least 5 seconds, and check that D804 Àashes slowly and that D805 lights. (Fig. 8)

(Fig. 7) LED displays indicated when step 5 is taken
D800 D801 D802 D803 D804 D805

(Fig. 8) LED displays indicated when step 6 is taken
D800 D801 D802 D803 D804 D805

: ON, : OFF, : Rapid Àashing

: ON, : OFF, : Slow Àashing

7. Hold down SW01 and SW02 simultaneously for at least 5 seconds to return the LED displays to the initial status. The existing piping is now supported by taking the above steps. In this status, the heating capacity may decrease during heating depending on the outside air temperature and indoor temperature.

• If there is any reason to doubt whether establishing support was successful in the course of this operation, hold down SW01 and SW02 simultaneously for at least 5 seconds to return to the initial status, and then repeat the setting steps.

How to check the existing piping settings
You can check whether the existing piping settings are enabled. 1. Check that the LED displays are placed in their initial status. If not, place them in the initial status. 2. Hold down SW01 for at least 5 seconds, and check that D804 Àashes slowly. (Fig. 9) 3. Press SW01 four times to set the LED displays (D800 to D805) to the “LED displays for existing piping settings”
shown below. If the setting is enabled, D802 lights and D804 and D805 Àash rapidly. (Fig. 10) 4. Hold down SW01 and SW02 simultaneously for at least 5 seconds to return the LED displays to the initial
status.

(Fig. 9) LED displays indicated when step 3 is taken
D800 D801 D802 D803 D804 D805

(Fig. 10) LED displays for existing piping settings
D800 D801 D802 D803 D804 D805

: ON, : OFF, : Slow Àashing

: ON, : OFF, : Rapid Àashing

When restoring the factory defaults
To restore the factory defaults in situations such as when relocating the units, follow the steps below. 1. Check that the LED displays are placed in their initial status. If not, place them in the initial status. 2. Hold down SW01 for at least 5 seconds, and check that D804 Àashes slowly. (Fig. 11) 3. Press SW01 14 times to set the LED displays (D800 to D805) to the “LED displays restored to factory defaults”
shown below. (Fig. 12)

(Fig. 11) LED displays indicated when step 2 is taken
D800 D801 D802 D803 D804 D805

(Fig. 12) LED displays restored to factory defaults
D800 D801 D802 D803 D804 D805

: ON, : OFF, : Slow Àashing

: ON, : OFF, : Rapid Àashing

4. Hold down SW02 for at least 5 seconds, and check that D804 Àashes slowly. (Fig. 13) 5. Hold down SW01 and SW02 simultaneously for at least 5 seconds to return the LED displays to the initial
status.

(Fig. 13) LED displays indicated when step 4 is taken
D800 D801 D802 D803 D804 D805

: ON, : OFF, : Slow Àashing

27-EN

­ 14 ­

EN
28-EN

13 Troubleshooting
You can perform fault diagnosis of the outdoor unit with the LEDs on the P.C. board of the outdoor unit in addition to using the check codes displayed on the wired remote controller of the indoor unit. Use the LEDs and check codes for various checks. Details of the check codes displayed on the wired remote controller of the indoor unit are described in the Installation Manual of the indoor unit.
LED displays and check codes

No.

Error

1 Normal 2 Discharge temperature sensor (TD) error 3 Heat exchanger temperature sensor (TE) error 4 Heat exchanger temperature sensor (TL) error 5 Outside air temperature sensor (TO) error 6 Suction temperature sensor (TS) error 7 Heat sink temperature sensor (TH) error 8 Heat exchanger sensor (TE, TS) connection error 9 EEPROM error 10 Compressor breakdown 11 Compressor lock 12 Current detection circuit error 13 Case thermostat operation 14 Model data not set 15 Discharge temperature error 16 Power supply error 17 High pressure SW error 18 Heat sink overheating error 19 Gas leak detected 20 4-way valve reverse error 21 High pressure release operation 22 Fan system error 23 Drive device short-circuiting 24 Position detection circuit error 25 Compressor IPDU or other (not specifically identified)
: ON, : OFF, : Rapid flashing (5 times/sec.)

Display D800 D801 D802 D803 D804 D805

• The LEDs and switches are located at the top right of the P.C. board of the outdoor unit as shown in the figure below.

LED displays

­ 15 ­

14 Appendix

[1] Existing piping
Work instructions
The existing R22 and R410A piping can be reused for our digital inverter R32 product installations.
WARNING
Confirming the existence of scratches or dents on the existing pipes and confirming the reliability of the pipe strength are conventionally referred to the local site. If the specified conditions can be cleared, it is possible to update existing R22 and R410A pipes to those for R32 models.

Basic conditions needed to reuse existing pipes
Check and observe the presence of three conditions in the refrigerant piping works. 1. Dry (There is no moisture inside of the pipes.) 2. Clean (There is no dust inside of the pipes.) 3. Tight (There are no refrigerant leaks.)

Restrictions for use of existing pipes
In the following cases, the existing pipes should not be reused as they are. Clean the existing pipes or exchange them with new pipes. 1. When a scratch or dent is heavy, be sure to use
new pipes for the refrigerant piping works. 2. When the existing pipe thickness is thinner than the
specified “Pipe diameter and thickness,” be sure to use new pipes for the refrigerant piping works.
The operating pressure of R32 is high. If there is a scratch or dent on the pipe or a thinner pipe is used, the pressure strength may be inadequate, which may cause the pipe to break in the worst case. * Pipe diameter and thickness (mm)

Pipe outer diameter Ø6.4 Ø9.5 Ø12.7 Ø15.9 Ø19.0

R32/R410A

Thickness

0.8 0.8 0.8 1.0 1.0

R22

In case the pipe diameter is Ø12.7 mm or less and the thickness is less than 0.7 mm, be sure to use new pipes for the refrigerant piping works.

3. When the outdoor unit was left with the pipes disconnected, or the gas leaked from the pipes and the pipes were not repaired and refilled. There is the possibility of rain water or air, including moisture, entering the pipe.
4. When refrigerant cannot be recovered using a refrigerant recovery unit. There is the possibility that a large quantity of dirty oil or moisture remains inside the pipes.
5. When a commercially available dryer is attached to the existing pipes. There is the possibility that copper green rust has been generated.
6. When the existing air conditioner is removed after refrigerant has been recovered. Check if the oil is judged to be clearly different from normal oil. The refrigerator oil is copper rust green in color: There is the possibility that moisture has mixed with the oil and rust has been generated inside the pipe. There is discolored oil, a large quantity of residue, or a bad smell. A large quantity of shiny metal dust or other wear residue can be seen in the refrigerant oil.
7. When the air conditioner has a history of the compressor failing and being replaced. When discolored oil, a large quantity of residue, shiny metal dust, or other wear residue or mixture of foreign matter is observed, trouble will occur.
8. When temporary installation and removal of the air conditioner are repeated such as when leased etc.
9. If the type of refrigerator oil of the existing air conditioner is other than the following oil (Mineral oil), Suniso, Freol-S, MS (Synthetic oil), alkyl benzene (HAB, Barrel-freeze), ester series, PVE only of ether series. The winding-insulation of the compressor may deteriorate.
NOTE
The above descriptions are results have been confirmed by our company and represent our views on our air conditioners, but do not guarantee the use of the existing pipes of air conditioners that have adopted R32/R410A in other companies.

D800 D801 D802 D803 D804 D805 (Yellow) (Yellow) (Yellow) (Yellow) (Yellow) (Green)

29-EN

30-EN

Curing of pipes
When removing and opening the indoor or outdoor unit for a long time, cure the pipes as follows:
Otherwise rust may be generated when moisture or foreign matter due to condensation enters the pipes. The rust cannot be removed by cleaning, and new pipes are necessary.

Placement location
Outdoors
Indoors

Term

Curing manner

1 month or more Less than 1 month
Every time

Pinching Pinching or taping

31-EN

Are there scratches or dents on the existing pipes?
NO
Is it possible to operate the existing air conditioner?
YES
After the existing air conditioner is operated in cooling mode for approx. 30 minutes or longer, recover the refrigerant. Refer to “12 Refrigerant recovery” For cleaning the pipes and recovering oil Refrigerant recovery: Pump down method

YES NO

Existing pipes: Cannot be used. Use new pipes.

Nitrogen gas pressure 0.5 MPa

Remove the existing air conditioner from the piping and carry out flushing (nitrogen pressure 0.5 MPa) to remove any remains inside of the pipe.

(If there is discharge of remains, it is judged that a large quantity of remains are present.)

Was largely discolored oil or a large quantity of remains discharged? (When the oil deteriorates,
the color of the oil changes to a muddy or black color.)

YES

Clean the pipes or use new pipes.

NO

Connect the indoor / outdoor units to the existing pipe.
Use a flare nut attached to the main unit for the indoor / outdoor units. (Do not use the flare nut of the existing pipe.) Re-machine the flare machining size to size for R32.
In case that the gas pipe Ø19 mm is used for the outdoor unit of GV80 (3 HP) or higher : (Our R32 model 3 to 6 HP gas pipe size is Ø15.9 mm)
See page 14 “Existing piping”.
(Airtight test), Vacuum dry, Refrigerant charge, Gas leak check
Test run

Piping necessary to change the flare nut / machining size due to pipe compression

1. Flare nut width: H

(mm)

Copper pipe outer Ø6.4 Ø9.5 Ø12.7 Ø15.9 Ø19.0 diameter

For R32, R410A

17 22 26 29 36

H

For R22

Same as above

Same 24 27 as
above

2. Flare machining size: A

(mm)

Copper

pipe outer Ø6.4 Ø9.5 Ø12.7 Ø15.9 Ø19.0

A

diameter

For R32, R410A

9.1 13.2 16.6 19.7 24.0

For R22 9.0 13.0 16.2 19.4 23.3

Becomes a little larger for R32/R410A

Do not apply refrigerator oil to the flare surface.
EN

­ 16 ­

32-EN

[2] Minimum floor area : Amin (m²)

Total refrigerant quantity*

Floor standing Wall mounted

unit

unit

Ceiling mounted
unit

5HP

h0 M (kg)
1.900

0.6 30.976

1.8 Amin(m²)
3.442

2.2 2.304

• Total refrigerant quantity: Refrigerant quantity pre-charged at factory

­ 17 ­
15 Specifications

Model RAV-GV1401ATP-E

Sound power level (dBA)

Cooling

Heating

70

77

Product information of ecodesign requirements, (Regulation (EU) 2016/2281) http://ecodesign.toshiba-airconditioning.eu/en

Weight (kg) 57

33-EN

34-EN

Declaration of conformity

Manufacturer:

Toshiba Carrier (Thailand) Co.,Ltd. 144 / 9 Moo 5, Bangkadi Industrial Park, Tivanon Road, Tambol Bangkadi, Amphur Muang, Pathumthani 12000, Thailand

TCF holder:

TOSHIBA CARRIER EUROPE S.A.S Route de Thil 01120 Montluel FRANCE

Hereby declares that the machinery described below:

Generic Denomination: Air Conditioner

Model / type:

RAV-GV1401ATP-E

Commercial name: Digital Inverter Series Air Conditioner

Complies with the provisions of the Machinery Directive (Directive 2006/42/EC) and the regulations transposing into national law

Name: Position: Date: Place Issued:

Masaru Takeyama GM, Quality Assurance Dept. 24 May, 2022 Thailand

NOTE
This declaration becomes invalid if technical or operational modi¿cations are introduced without the manufacturer’s consent.

Declaration of conformity

Manufacturer:

Toshiba Carrier (Thailand) Co.,Ltd. 144 / 9 Moo 5, Bangkadi Industrial Park, Tivanon Road, Tambol Bangkadi, Amphur Muang, Pathumthani 12000, Thailand

TCF holder:

TOSHIBA CARRIER UK LTD. Porsham Close Belliver Industrial Estate Roborough Plymouth Devon PL6 7DB United Kingdom

Hereby declares that the machinery described below:

Generic Denomination: Air Conditioner

Model / type:

RAV-GV1401ATP-E

Commercial name: Digital Inverter Series Air Conditioner

Complies with the provisions of the Supply of Machinery (Safety) Regulations 2008

Name: Position: Date: Place Issued:

Masaru Takeyama GM, Quality Assurance Dept. 24 May, 2022 Thailand

NOTE
This declaration becomes invalid if technical or operational modi¿cations are introduced without the manufacturer’s consent.

35-EN

­ 18 ­

EN
36-EN

To Fix the Fluorinated Greenhouse Gases Label

This product contains Àuorinated greenhouse gases. Do not vent gases into the atmosphere.

Contains Àuorinated greenhouse gases

· Chemical Name of Gas

R32

· Global Warming Potential (GWP) of Gas

675

Fill in the label as follows:

CAUTION
1. Stick the enclosed refrigerant label adjacent to the service ports for charging or recovering location and where possible adjacent to existing nameplates or product information label.
2. Clearly write the charged refrigerant quantity on the refrigerant label using indelible ink. Then, place the included transparent protective sheet over the label to prevent the writing from rubbing off.
3. Prevent emission of the contained Àuorinated greenhouse gas. Ensure that the Àuorinated greenhouse gas is never vented to the atmosphere during installation, service or disposal. When any leakage of the contained Àuorinated greenhouse gas is detected, the leak shall be stopped and repaired as soon as possible.
4. Only quali¿ed service personnel are allowed to access and service this product.
5. Any handling of the Àuorinated greenhouse gas in this product, such as when moving the product or recharging the gas, shall comply under (EU) Regulation No.517/2014 on certain Àuorinated greenhouse gases and any relevant local legislation.
6. Periodical inspections for refrigerant leaks may be required depending on European or local legislation.
7. Contact dealers, installers, etc., for any questions.

Pre-charged refrigerant at factory [kg], speci¿ed in the nameplate
Additional charge on installation site [kg] GWP × kg 1000

­ 19 ­
Warnings on refrigerant leakage
Check of concentration limit
The room in which the air conditioner is to be installed requires a design that in the event of refrigerant gas leaking out, its concentration will not exceed a set limit. The refrigerant R32 which is used in the air conditioner is safe, without the toxicity or combustibility of ammonia, and is not restricted by laws to be imposed which protect the ozone layer. However, since it contains more than air, it poses the risk of suffocation if its concentration should rise excessively. Suffocation from leakage of R32 is almost non-existent. If a conditioner system is to be installed in a small room, select a suitable model and installation procedure so that if the refrigerant accidentally leaks out, its concentration does not reach the limit (and in the event of an emergency, measures can be made before injury can occur). In a room where the concentration may exceed the limit, create an opening with adjacent rooms, or install mechanical ventilation combined with a gas leak detection device. The concentration is as given below.
Total amount of refrigerant (kg) Concentration limit (kg/m³)
Min. volume of the indoor unit installed room (m³)
Refrigerant Concentration Limit shall be in accordance with local regulations.

37-EN

38-EN

144 / 9 Moo 5, Bangkadi Industrial Park, Tivanon Road, Tambol Bangkadi, Amphur Muang, Pathumthani 12000, Thailand

1131950102A

References

• ecodesign.toshiba-airconditioning.eu/en
• Toshiba Carrier | Manuals Download

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