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ENGLISH

OPERATION TIPS

The following events may occur during normal operation.

1. Protection of the air conditioner.

Compressor protection

The compressor cannot restart for 3 minutes after it stops.

Anti-cold air (Cooling and heating models only)

The unit is designed not to blow cold air on HEAT mode, when the indoor heat exchanger is in one of the following

three situations and the set temperature has not been reached.

A)   When heating has just starting.
B)   Defrosting.
C)   Low temperature heating.

The indoor or outdoor fan stop running when defrosting (Cooling and heating models only).

Defrosting (Cooling and heating models only)

Frost may be generated on the outdoor unit during heat cycle when outdoor temperature is low and humidity is

high resulting in lower heating efficiency of the air conditioner.

During this condition air conditioner will stop heating operation and start defrosting automatically.

The time to defrost may vary from 4 to 10 minutes according to the outdoor temperature and the amount of frost

buildup on the outdoor unit.

2. A white mist coming out from the indoor unit.

A white mist may generate due to a large temperature difference between air inlet and air outlet on COOL mode

in an indoor environment that has a high relative humidity.

A white mist may generate due to moisture generated from defrosting process when the air conditioner restarts in

HEAT mode operation after defrosting.

3. Low noise of the air conditioner

.

You may hear a low hissing sound when the compressor is running or has just stopped running.

This sound is the sound of the refrigerant flowing or coming to a stop.

You can also hear a low “squeak” sound when the compressor is running or has just stopped running. This is
caused by heat expansion and cold contraction of the plastic parts in the unit when the temperature is changing.

A noise may be heard due to louver restoring to its original position when power is first turned on.

4. Dust in blown out from the indoor unit.

This is a normal condition when the air conditioner has not been used for a long time or during fi

rst use of the unit.

5. A peculiar smell come out from the indoor unit.

This is caused by the indoor unit giving off smells permeated from building material, from furniture, or smoke.

6. The air conditioner turns to FAN only mode from COOL or HEAT (For cooling and heating models only) mode.

When indoor temperature reaches the temperature setting on air conditioner, the compressor will stop automatically,

and the air conditioner turns to FAN only mode. The compressor will start again when the indoor temperature rises
on COOL mode or falls on HEAT mode (For cooling and heating models only) to the set point.

7.

Dripping water may generate on the surface of the indoor unit when cooling in a high relatively humidity (relative

humidity higher than 80%). Adjust the horizontal louver to the maximum air outlet position and select HIGH fan speed.

8. Heating mode (For cooling and heating models only)

The air conditioner draws in heat from the outdoor unit and releases it via the indoor unit during heating operation.

When the outdoor temperature falls, heat drawn in by the air conditioner decreases accordingly.At the same time,

heat

loading of the air conditioner increases due to larger difference between indoor and outdoor temperature. If a comfortable
temperature cannot be achieved by the air conditioner, we suggest you use a supplementary heating device.

9. Auto-restart function

Power failure during operation will stop the unit completely.
For the unit without Auto-restart feature, when the power restores, the OPERATION indicator on the indoor unit

starts flashing. To restart the operation, push the ON/OFF button on the remote controller. For the unit with Auto-
restart feature, when the power restores, the unit restarts automatically with all the previous settings preserved by
the memory function.

10. Lightning or a car wireless telephone operating nearby may cause the unit to malfunction.

Disconnect the unit with power and then re-connect the unit with power again. Push the ON/OFF button on the

remote controller to restart operation.

J435.indd   16

1/22/08   11:14:09 AM

Summary of Contents for HTCA

Page 1: ...ation and operation Make sure that it is well kept for later reference Read this manual before installation and operation Make sure that it is well kept for later reference Mini Split Air Conditioner HTCA HTHA 36 INSTALLATION MANUAL ...

Page 2: ...ing guide 21 n o i t a l l a t s n i s i h t d a e r e s a e l P manualcarefullybeforestarting the installation It will tell you necessary information Quality POLICY We will continuously strive to sat t n e t s i s n o c h t i w s r e m o t s u c r u o y f s i d n a e c i v r e s t c u d o r p n i y t i l i b a i l e r support through superior qual ity service culture and distinctive technology J4...

Page 3: ...ay be dangerous and can cause injury Installation and maintenance of this air conditioning system should only be car ried out by trained and qualified personnel After unpacking please check the unit carefully for possible damage Before undertaking any work on the unit make sure that the power supply has been disconnected WARNING CAUTIONS Do not store or unpack the unit in a wet area or expose to r...

Page 4: ...rd DISPLAY PANEL OPERATION Indicator The indicator flashes once every sec ond after power is on and illuminates when the air connditioner is in operation TIMER Indicator The indicator illuminates when TIMER is set ON PRE DEF Indicator For cooling heating model only The air conditioner starts defrosting automatically if outdoor unit frosts in heating operating At this time PRE DEF Indicator illumin...

Page 5: ... RQO RSHUDWLRQ GHSHQGLQJ RQ ZKDW WHPSHUDWXUH RX KDYH VHOHFWHG DQG WKH URRP WHPSHUDWXUH 7KH DLU FRQGLWLRQHU ZLOO FRQWURO URRP WHPSHUDWXUH DXWRPDWLFDOO URXQG WKH WHPSHUDWXUH SRLQW VHW E RX I WKH 872 PRGH LV XQFRPIRUWDEOH RX FDQ VHOHFW GHVLUHG FRQGLWLRQV PDQXDOO Q 2120 23 5 7 21 KHQ RX SXVK 6 3 EXWWRQ GXULQJ FRROLQJ KHDWLQJ FRROLQJ RQO W SH ZLWKRXW RU 872 RSHUDWLRQ WKH DLU FRQGLWLRQHU ZLOO VWDUW IROO...

Page 6: ...Do not operate unit with horizontal louver in closed position PREPARATION BEFORE INSTALLATION Before doing any work check the interior power supply cord and the main breaker capacity are sufficient and the installation area is sufficient and complies with the requirements Check that the power supply available agrees with name plate voltage Electrical work wiring and cables must be performed in com...

Page 7: ...ndoor unit Dimension Mode W H D 12K 250 188 Dimension Mode W H D L1 L2 12K 760 590 285 540 335 3 2 Outdoor unit J435 indd 7 1 22 08 11 13 51 AM 750 18K 286 235 906 24K 30K 330 222 1080 36K 325 230 1250 18K 30K 845 695 335 560 360 36K 895 860 330 590 333 ...

Page 8: ... hole and mount installation plate After determining the pipe e l o h e h t l l i r d n o i t i s o p e l o h t n a l s d r a w n w o d t h g i l s a t a towards the outdoor side ø 65 mm Outdoor Indoor Note When installing the refrigerant pipes from others side A hole must be place to allow fall towards the outdoor unit Make6mm4 6holes inthewallatthefourcornersofmouting plate bracket then insert a...

Page 9: ...ater Drain hose For left and left rear piping Drain cap Drain cap For right and right rear piping CAUTIONS Drain hose Nevermodifytheunitbyremovinganyofthesafetyguards or by passing any of the safety interlock swithces Connecttheinterconnectingcablecorrectlyandconnect the connecting cable to terminal as identified with their respective marking Do not damage the conductor core or inner insulation of...

Page 10: ... vibrations cannot be transmitted to the building structure Connect the pipe correctly Do not apply the excessive torque Use an appropriate bending tool to form curves and avoid over tightening the refrigerant tubes To prevent heat loss the two lines must be insulated separately Maximum Piping Length The suction line must have a 2 gradient up to the compressor on horizontal sections Where the diff...

Page 11: ...w t a h t t n a r e g i r f e r length of 7 meters Liquid Cooling GAS Cooling suction Low pressure High pressure Manifold Gas valve Liquid valve Pressure tap Outdoor Unit Indoor Unit Gas Line Liquid Line R 22 Outdoor heat pump unit install the unit at least 10 cm above ground level to facilitate drainage of defrost water and prevent accumulation of ice In effect defrost water can cause accumulatio...

Page 12: ...r contract with the power supplier if restrictions do apply for products like washing machines air conditioner 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 Cautions Never modify the unit by removing any of the safety guards or by bypassing any of the safety interlock swithces Connecttheconnectin...

Page 13: ...MB IENT SENSOR HEAT EXCHANGER SENSOR SWITCHBOARD DISPLAY BOARD WHITE BLACK CN9 CN4 CN12 CN8 CN7 CN10 CN6 CN5 JX1 Y G Y G FAN CAPACITOR COMPRESSOR CAPACITOR INDOOR UNIT OUTDOOR UNIT OVERLOAD RELAY COMPRESSOR RED BLACK BLACK BLACK Y G FAN MOTOR RED BLUE BLUE WHITE Y G Indoor Unit HTCA24 30OSAAAR Outdoor Unit HTCA24 30OSAAAR Indoor Unit HTCA36OSAAAR Outdoor Unit HTCA36OSAAAR Indoor Unit HTHA12OSAAAR ...

Page 14: ...12OSAADR POWER SUPPLY INDOOR MOTOR STEP MOTOR PIPE TEMPERATURE SENSOR ROOM TEMPERATURE SENSOR DISPLAY BOARD TRANSFORMER WHITE BLACK GREEN BLACK RED COMPRESSOR RELAY CURRENT DETECTOR INDOOR UNIT TO OUTDOOR UNIT TO INDOOR UNIT RD RD BL COMP C R M S BL 1 2 N OUTDOOR UNIT BK BK CAPACITOR FAN MOTOR BK RD OVERLOAD RELAY INTERNAL EXTERNAL DEPENDING ON MODELS RD This symbol indicates the element is option...

Page 15: ...oor Unit HTCA36RSAADR EN Indoor Unit HTHA36RSAADR Outdoor Unit HTHA36RSAADR Indoor Unit HTCA18OSAADR I Outdoor Unit HTCA18OSAADR I OUTDOOR FAN BLUE RED BLACK F ACITOR BLACK TERMINAL 1 N COMPRESSOR WHITE ACITOR ARTER C R BLACK BLACK BLACK BLUE T S 1 2 1 2 RED Outdoor HTCA36RSAADR Outdoor HTHA36RSAADR WIRING DIAGRAM OUTDOOR UNIT ...

Page 16: ...R I Outdoor Unit HTHA18OSAADR I Indoor Unit HTCA24OSAADR I Outdoor Unit HTCA24OSAADR I EN Indoor Unit HTCA30OSAADR Outdoor Unit HTCA30OSAADR Indoor Unit HTHA24OSAADR I Outdoor Unit HTHA24OSAADR I POWER SUPPLY GREEN POWER SUPPLY GREEN MAIN BOARD WIRING DIAGRAM INDOOR UNIT ...

Page 17: ...17 ENGLISH EN J435 indd 13 1 22 08 11 14 01 AM Indoor Unit HTHA30OSAADR Outdoor Unit HTHA30OSAADR Indoor Unit HTCA24RSAAAR Outdoor Unit HTCA24RSAAAR EN Indoor Unit HTCA30RSAAAR Outdoor Unit HTCA30RSAAAR ...

Page 18: ...en either of the following conditions is met a Unit has been running under T3 0 o C for 40 minutes and T3 3 o C for 3 minutes b Unit has been running at high temperature protection mode for90minutes Hightemperatureprotection mode when coil temperature of indoor unit reaches 55 C outdoor unit will turn off external unit fan but still keep compressor running 2 Condition to stop defrosting Units will...

Page 19: ...the batteries from the remote controller 3 The outdoor unit requires periodic maintenance and cleaning Do not attempt to do this yourself Contact your dealer or servicer Checks before operation Check that the wiring is not broken off or disconnected Check that the air filter is installed Check if the air outlet or inlet is blocked after the air conditioner has not been used for a long time Donotto...

Page 20: ... out from the indoor unit This is a normal condition when the air conditioner has not been used for a long time or during fi rst use of the unit 5 A peculiar smell come out from the indoor unit This is caused by the indoor unit giving off smells permeated from building material from furniture or smoke 6 The air conditioner turns to FAN only mode from COOL or HEAT For cooling and heating models onl...

Page 21: ...low in heating mode or too high in cooling mode 2 Faulty fan 2 Check condenser air circulation 3 Refrigerant charge too low leak 4 Air or incondensables in refrigerant circuit recharge E The compressor starts but shuts 1 Too much or too little refrigerant 1 Remove charge evacuate and down quickly recharge 2 Faulty compressor 2 Determine the cause and replace compressor 3 Air or incondensables in 3...

Page 22: ...g a refrigerant reclaim or recovery unit This refrigerant may then be reused if appropriate or returned to the manufacturer for disposal Under No circumstances should refrigerant be vented to atmosphere Where appropriate drain the refrigerant oil from each system into a suitable container and dispose of according to local laws and regulations governing disposal of oily wastes 3 Packaged unit can g...

Page 23: ...www johnsoncontrols com Form No 035M00522 000 2010 Johnson Controls Inc Johnson Controls reserve the right to change product features without prior notice ...

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