Hitachi RAS-14CH4 User manual

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

ROOM AIR CONDITIONER

INDOOR UNIT + OUTDOOR UNIT

MARCH 2004

H.A.P.M.

REFER TO THE FOUNDATION MANUAL

CONTENTS

SPECIFICATIONS ............................................................... 5

SAFETY PRECAUTION ...................................................... 6

HOW TO USE ..................................................................... 8

CONSTRUCTION AND DIMENSIONAL DIAGRAM ........ 27

MAIN PARTS COMPONENT ............................................ 28

WIRING DIAGRAM ........................................................... 30

BASIC MODE .................................................................... 35

AUTO SWING FUNCTION ............................................... 39

REFRIGERATING CYCLE DIAGRAM .............................. 40

SERVICE CALL Q & A ..................................................... 42

TROUBLESHOOTING ....................................................... 47

PARTS LIST AND DIAGRAM ........................................... 49

RAS-14CH4

RAC-14CH4

RAS-14CH4

RAC-14CH4

TYPE WALL TYPE

INDOOR UNIT OUTDOOR UNIT

MODEL RAS-14CH4 RAC-14CH4

POWER SOURCE 1Ø, 220 V, 50 Hz

TOTAL INPUT (W) 1,290

COOLING TOTAL AMPERES (A) 6.0

CAPACITY (kW) 3.55

(B.T.U./h) 12,120

TOTAL INPUT (W) 1,370

HEATING TOTAL AMPERES (A) 6.30

CAPACITY (kW) 4.10

(B.T.U./h) 14,000

W 815 820

DIMENSIONS (mm) H 298 520

D 179 280

NET WEIGHT (kg) 8 39

SPECIFICATIONS

❈After installation

SERVICE MANUAL

TECHNICAL INFORMATION

FOR SERVICE PERSONNEL ONLY

PM NO. 0204E

RAS-14CH4

RAC-14CH4

SAFETY DURING REPAIR WORK

1. In order to disassemble and repair the

unit in question, be sure to disconnect

the power cord plug from the power

outlet before starting the work.

2. If it is necessary to replace any parts, they should be replaced with respective genuine parts for the unit,

and the replacement must be effected in correct manner according to the instructions in the Service Manual

of the unit.

3. After completion of repairs, the initial state should

be restored.

4. Lead wires should be connected and laid as in

the initial state.

5. Modification of the unit by the user himself should

absolutely be prohibited.

6. Tools and measuring instruments for use in repairs or inspection should be accurately calibrated in

advance.

7. In installing the unit having been repaired, be careful to prevent the occurrence of any accident such as

electrical shock, leak of current, or bodily injury due to the drop of any part.

8. To check the insulation of the unit, measure the insulation resistance between the power cord plug and

grounding terminal of the unit. The insulation resistance should be 1MΩor more as measured by a 500V

DC megger.

9. The initial location of installation such as window, floor or the other should be checked for being safe

enough to support the repaired unit again.

If it is found not so strong and safe, the unit should be installed at the initial location after reinforced or at a

new location.

10. Any inflammable object must not be

placed about the location of installation.

11. Check the grounding to see whether it

is proper or not, and if it is found

improper, connect the grounding

terminal to the earth.

If the contacts of electrical parts

are defective, replace the

electrical parts without trying to

repair them.

Spray

gasoline

gasbombe thinner

DANGER

First, I must disconnect

the power cord plug

from the power outlet.

– 1 –

HITACHI IC401TH1 ,188UV

WORKING STANDARDS FOR PREVENTING BREAKAGE OF SEMICONDUCTORS

1. Scope

The standards provide for items to be generally observed in carrying and handling semiconductors in relative

manufacturers during maintenance and handling thereof. (They apply the same to handling of abnormal goods

such as rejected goods being returned).

2. Object parts

(1) Micro computer

(2) Integrated circuits (IC)

(3) Field-effect transistors (FET)

(4) P.C. boards or the like on which the parts mentioned in (1) and (2) of this paragraph are equipped.

3. Items to be observed in handling

(1) Use a conductive container for carrying and storing of parts. (Even rejected goods should be handled in the

same way).

(2) When any part is handled uncovered (in counting, packing and the like), the handling person must always

use himself as a body earth. (Make yourself a body earth by passing one M ohm earth resistance through a

ring or bracelet).

(3) Be careful not to touch the parts with your clothing when you hold a part even if a body earth is being taken.

(4) Be sure to place a part on a metal plate with grounding.

(5) Be careful not to fail to turn off power when you repair the printed circuit board. At the same time, try to repair

the printed circuit board on a grounded metal plate.

A conductive polyvinyl bag

Conductive sponge

Fig. 1 Conductive Container

Fig. 2 Body Earth

Body earth

(Elimik conductive band)

Clip for connection with

a grounding wire

–2 –

(6) Use a three wire type soldering iron including a grounding wire.

Bare copper wire (for body earth)

Working table

Resistor of 1 MΩ(1/2W)

Earth wire

Fig. 3. Grounding of the working table

Screw stop at the screwed

part using a rag plate

Soldering iron

Grounding wire

Fig. 4. Grounding a soldering iron

Use a high insulation mode (100V, 10MΩor higher) when ordinary iron is to be used.

(7) In checking circuits for maintenance, inspection or some others, be careful not to have the test probes of the

measuring instrument shortcircuit a load circuit or the like.

Metal plate (of aluminium, stainless steel, etc.)

Staple

–3 –

CAUTION

1. In quiet or stop operation, slight flowing noise of refrigerant in the refrigerating cycle is heard occasionally,

but this noise is not abnormal for the operation.

2. When it thunders near by, it is recommend to stop the operation and to disconnect the power cord plug from

the power outlet for safety.

3. If the room air conditioner is stopped by setting the temperature or mis-operation, and then re-started in a

moment, cooling operation does not start for 3 minutes, it is not abnormal and this is the result of the

operation of IC delay circuit.This IC delay circuit ensures that there is no danger of blowing fuse or damaging

parts even if operation is restarted accidentally.

4. This room air conditioner should not be used at the cooling operation when the outside temperature is

below 20°C.

5. When the operation knob is set to “COOL”from another position, IC delay circuit functions and stops the

compressor for the first 3 minutes, which is not an abnormal phenomenon.

–4 –

270(10-21/32")

145(5-11/16")

12(1-1/2")

50(2")

500(19-11/16")

The Length of Indoor Unit

Connecting Cord

about

0.9m about 1.6m

CAUTION

In case the pipe length is more than 8m, add refrigerant R22 at

25 gram per every meter exceeds. However, pipe length shall not

exceed 10m.

Figure showing the Installation

of Indoor and Outdoor unit.

Cut away shaded

portion, and finish

the edge of the

opening so that

there is no burr.

Direction of Piping

Horizontally

perpendicular

to the unit.

Connection

There are 4 directions allowed, namely,

horizontally perpendicular to the unit,

vertically down from right, horizontally

out from right.

Don't form the piping downward at the

left of the unit.

Dimension of Mounting Stand

of the outdoor unit

(unit: mm)

above 200mm

above 50mm when

installed on the

ceiling of balcony.

above 300mm

❇ above 700mm above 200mm

❇above 100mm

❇give clearance as

wide as possible

Maximum pipe length 10m

Minimum pipe length 5m

Plug

The indoor piping should be

insulated with the enclosed

insulation pipe. (If the insulator

is insufficient, please use

commercial products).

●The difference in height

between the indoor and

outdoor unit should be kept

below 5m.

●The connecting pipe, no

matter big or small, should all

be insulated with insulation

pipe and then wrapped with

vinyl tape. (The insulator will

deteriorate if it is not wrapped

with tape).

The connection of insulated drain

hose.

Inner diameter ø16mm

Please use insulated drain hose

for the indoor piping (commercial

product.)

above 100mm

above 50mm

2,300mm or more

above 300mm

about 0.45m

must not bend

Be sure to

completely

seal any gap

with putty.

–5 –

SPECIFICATIONS

MODEL RAS-14CH4 RAC-14CH4

FAN MOTOR 10 W 20 W

FAN MOTOR CAPACITOR 1 µF, 450 V 2.5 µF, 450 V

FAN MOTOR PROTECTOR YES (INTERNAL) YES (INTERNAL)

COMPRESSOR NO SH933RC2-U

COMPRESSOR MOTOR CAPACITOR NO 35 µF, 440 V

OVERLOAD PROTECTOR NO NO

OVERHEAT PROTECTOR NO YES

FUSE (for MICRO COMPUTER) 3.0 A NO

POWER RELAY G4A-RY-200 NO

POWER SWITCH YES NO

TEMPORARY SWITCH YES NO

SERVICE SWITCH YES NO

TRANSFORMER YES NO

VARISTOR 450NR NO

NOISE SUPPRESSOR NO NO

SOLID STATE RELAY FOR FAN (FAN SSR) S26MD02 NO

EXTERNAL FAN AND REVERSING VALVE RELAY G4U NO

REMOTE CONTROL SWITCH (LIQUID CRYSTAL) YES NO

THERMOSTAT YES (IC) NO

FUSE CAPACITY 15A TIME DELAY FUSE

UNIT ❇ 1,080 g

REFRIGERANT CHARGING WITHOUT REFRIGERANT BECAUSE COUPLING

VOLUME IS FLARE TYPE.

(Refrigerant 22) PIPES P - 103 VK1 (3m), P - 105 VK1 (5m),

P - 108 VK1 (8m)

❇1,080g for piping set of 5 ~ 8m, additional 25g/m R22 is required for additional 8m onward, but cannot exceed

10m.

–6 –

SAFETY PRECAUTION

●

Please read the “Safety Precaution”carefully before operating the unit to ensure correct usage of the unit.

●

Pay special attention to signs of “Warning”and “Caution”.The “Warning”section contains matters which,

if not observed strictly, may cause death or serious injury. The “Caution”section contains matters which may

result in serious consequences if not observed properly. Please observe all instructions strictly to ensure safety.

●

The sign indicate the following meanings.

●

Please keep this manual after reading.

Make sure to connect earth line. The sign in the figure indicates prohibition.

Indicates the instructions that must be followed.

WARNING

PRECAUTIONS DURING INSTALLATION

●

Do not reconstruct the unit.

Water leakage, fault, short circuit or fire may occur if you reconstruct the unit

by yourself.

●

Please ask your sales agent or qualified technician for the installation of your

unit. Water leakage, short circuit or fire may occur if you install the unit by

yourself.

●

Please use earth line.

Do not place the earth line near water or gas pipes, lightning-conductor, or

the earth line of telephone. Improper installation of earth line may cause electric

shock.

●

A circuit breaker should be installed depending on the mounting site of the

unit. Without a circuit breaker, the danger of electric shock exists.

●

Do not install near location where there is flammable gas. The outdoor unit

may catch fire if flammable gas leaks around it.

●

Please ensure smooth flow of water when installing the drain hose.

CAUTION

PRECAUTIONS DURING SHIFTING OR MAINTENANCE

●

Should abnormal situation arises (like burning smell), please stop operating the unit

and turn off the circuit breaker. Contact your agent. Fault, short circuit or fire may

occur if you continue to operate the unit under abnormal situation.

●

Please contact your agent for maintenance. Improper self maintenance may cause

electric shock and fire.

●

Please contact your agent if you need to remove and reinstall the unit. Electric shock

or fire may occur if you remove and reinstall the unit yourself improperly.

●

Avoid an extended period of direct air flow for your health.

●

Do not insert a finger, a rod or other objects into the air outlet or inlet. As the fan

is rotating at a high speed, it will cause injury. Before cleaning, be sure to stop

the operation and turn the breaker OFF.

●

Do not use any conductor as fuse wire, this could cause fatal accident.

●

During thunder storm, disconnect and turn off the circuit breaker.

PRECAUTIONS DURING OPERATION

–7 –

●The product shall be operated under the manufacturer specification and

not for any other intended use.

●Do not attempt to operate the unit with wet hands, this could cause fatal

accident.

●When operating the unit with burning equipments, regularly ventilate the

room to avoid oxygen insufficiency.

●Do not direct the cool air coming out from the air-conditioner panel to face

household heating apparatus as this may affect the working of apparatus

such as the electric kettle, oven etc.

●Please ensure that outdoor mounting frame is always stable, firm and

without defect. If not, the outdoor unit may collapse and cause danger.

●Do not splash or direct water to the body of the unit when cleaning it as this

may cause short circuit.

●Do not use any aerosol or hair sprays near the indoor unit. This chemical

can adhere on heat exchanger fin and blocked the evaporation water flow

to drain pan.The water will drop on tangential fan and cause water splashing

out from indoor unit.

●Please switch off the unit and turn off the circuit breaker during cleaning, the

high-speed fan inside the unit may cause danger.

●Turn off the circuit breaker if the unit is not to be operated for a long period.

●Do not climb on the outdoor unit or put objects on it.

●Do not put water container (like vase) on the indoor unit to avoid water

dripping into the unit. Dripping water will damage the insulator inside the

unit and causes short-circuit.

●Do not place plants directly under the air flow as it is bad for the plants.

●

When operating the unit with the door and windows opened, (the room humidity is always above

80%) and with the air deflector facing down or moving automatically for a long period of time,

water will condense on the air deflector and drips down occasionally.This will wet your furniture.

Therefore, do not operate under such condition for a long time.

●

If the amount of heat in the room is above the cooling or heating capability of the unit (for

example: more people entering the room, using heating equipments and etc.), the preset room

temperature cannot be achieved.

PRECAUTIONS DURING OPERATION

–8 –

OUTDOOR UNIT

Air Filter

To prevent dust from coming into the indoor unit.

(Refer page 24)

Suction Grille (Air Inlet)

Indoor unit Indicators

Light indicator showing the operation condition.

(Refer page 9)

Horizontal Deflector • Vertical Deflector

(Air outlet)

(Refer page 20)

Remote Control

Send out operation signal to the indoor unit.

So as to operate the whole unit.

(Refer page 10)

Drain pipe

Condensed water drain to outside.

Connecting cord

Air inlet (Back and right side)

Air outlet

MODEL NAME AND DIMENSIONS

MODEL WIDTH (mm) HEIGHT (mm) DEPTH (mm)

RAS-14CH4 815 298 179

RAC-14CH4 820 520 280

NAMES AND FUNCTIONS OF EACH PART

INDOOR UNIT

This manual suits for next models

Table of contents

Other Hitachi Air Conditioner manuals

Hitachi

Hitachi RAF-25QH8 User manual

Hitachi

Hitachi airHome 400 User manual

Hitachi

Hitachi RAC-18WPA User manual

Hitachi

Hitachi RAK-60NHA1 User manual

Hitachi

Hitachi RAS-D10EX5 User manual

Hitachi

Hitachi RAM-68NP3B User manual

Hitachi

Hitachi RAS-S25YHA User manual

Hitachi

Hitachi 3HRNM1Q Instruction Manual

Hitachi

Hitachi RAS-08KH2 User manual

Hitachi

Hitachi RCD-0.8FSN3 series User manual

Hitachi

Hitachi UTOPIA RAS-HRC2E User manual

Hitachi

Hitachi RAK-35PEC User manual

Hitachi

Hitachi RAI-25NH5 User manual

Hitachi

Hitachi Air Home 400 RAK-DJ70PHAT User manual

Hitachi

Hitachi RPK-(0.4-1.0)FSN(H)4M User manual

Hitachi

Hitachi RAI-50PPD User manual

Hitachi

Hitachi RPIL-3.0UFE1NH Instruction Manual

Hitachi

Hitachi RAS-18CH5 User manual

Hitachi

Hitachi RAS-30EH2 User manual

Hitachi

Hitachi RAS-E35YHA User manual

Hitachi

Hitachi RAS-50YHA2 User manual

Hitachi

Hitachi RAF-35RXB User manual

Hitachi

Hitachi RAC-10CE9 User manual

Hitachi

Hitachi RAS-13EX9G User manual

Popular Air Conditioner manuals by other brands

Spheros

Spheros CC 355 instructions

Bosch

Bosch Climate 5000 SCI 24 CAS/ OU- OUE owner's manual

Panasonic

Panasonic CS-E12HKEW operating instructions

nedis

nedis ACMB1WT7 quick start guide

Samsung

Samsung AR KV Series User & installation manual

Daikin

Daikin FCFV50A Operation manual

Fujitsu

Fujitsu Inverter ASBA30JFC operating manual

Toshiba

Toshiba RAS-M10SMUV-E installation manual

Daikin

Daikin FXLQ20MAVE Operation manual

CIAT

CIAT Magister 2 Series Installation, Operation, Commissioning, Maintenance

Bestron

Bestron AAC6000 instruction manual

Hisense

Hisense 7K Use and Installation Instructions

Frigidaire

Frigidaire FFRE0533S1E0 Use & care guide

Samsung

Samsung AS09HM3N user manual

Frigidaire

Frigidaire CRA073PU11 use & care

Soleus Air

Soleus Air GB-PAC-08E4 operating instructions

McQuay

McQuay MCK020A Technical manual

Webasto

Webasto Frigo Top 25 DS Instructions for use