Fisher FSKI-121B-EU, FSOI-121B, FSKI-181B, FSOI-181B, FSKI-241B Installation Instructions Manual

Operating and Installation Instructions Manual

Cassette Type Air Conditioner (With Wire Controller)

Unit Model:

Thanks for your selection of

Air-Conditioning Unit. Before use, please read this

instruction manual carefully and keep it properly to ensure correct use of this machine.

FISHER

Indoor Unit Outdoor Unit

FSKI-121B-EU FSOI-121B
FSKI-181B FSOI-181B
FSKI-241B FSOI-241B
FSKI-301B FSOI-301B
FSKI-361B FSOI-361B
FSKI-451B FSOI-451B
FSKI-361B FSOI-361B-3F
FSKI-451B FSOI-451B-3F

User Notice

● Ensure unied power supply for each indoor unit.

● Never install wired controller in wet place or under sunlight directly.

● Shielding twisted pair line must be adopted as signal line or wiring (communication) of wired controller

once the unit is installed in the place where there is electromagnetic interference.

● Make sure communication line is connected into correct port to avoid communication malfunction.

● Never knock, throw or frequently disassemble the wired controller.

● Never operate the wired controller with wet hand.

CONTENT

Safety Considerations ............................................................................................. 1

1. Names and Functions of Parts ............................................................................. 4

2. Displaying Part .................................................................................................... 5

2.1 LCD Display of Wired Controller ...................................................................................... 5

2.2 Instruction to LCD Display ................................................................................................. 6

3. Buttons ................................................................................................................ 7

3.1 Silk Screen of Buttons ......................................................................................................... 7

3.2 Instruction to Function of Buttons ...................................................................................... 7

4. Installation of Wired Controller ......................................................................... 8

5. Instruction to Operation ...................................................................................... 9

5.1 On/Off ................................................................................................................................. 9

5.2 Mode Setting ....................................................................................................................... 9

5.3 Temperature Setting .......................................................................................................... 10

5.4 Fan Speed Setting .............................................................................................................. 10

5.5 Swing Control Function ................................................................................................... 10

5.6 Timer Setting ..................................................................................................................... 12

5.7 Air Exchange Setting

＊

..................................................................................................... 13

5.8 Sleep Setting ...................................................................................................................... 15

5.9 Turbo Function Setting ...................................................................................................... 16

5.10 SAVE Function Setting .................................................................................................. 17

5.11 E-HEATER Setting ＊ ....................................................................................................

19

5.12 Blow Function Setting ..................................................................................................... 20

5.13 Quiet Function Setting ................................................................................................... 22

5.14 Field Functions ................................................................................................................ 23

5.15 Other Functions ............................................................................................................... 24

6. Error Display ..................................................................................................... 25

7. Remote Control Operation Procedure(standard tting) .................................... 29

7.1 Name and Function-Remote Control ......................................................................................29

7.2 Name and Function-Remote Control. (Remove the cover) ....................................................30

7.3 COOL mode operation procedure ...........................................................................................31

7.4 HEAT mode operation procedure ............................................................................................32

7.5 DRY mode operation procedure ..............................................................................................33

7.6 AUTO mode operation procedure ...........................................................................................34

7.7 FAN mode operation procedure ..............................................................................................35

7.8 TIMER operation procedure ...................................................................................................36

7.9 SLEEP mode operation procedure ..........................................................................................37

7.10 How to insert batteries ..........................................................................................................38

8. Instructions of Unit Installation .............................................................................39

8.1 Installation Notes ....................................................................................................................39

8.2 Install of the Cassette Type Indoor Unit ..................................................................................40

8.3 Electric Wiring ........................................................................................................................46

8.4 Installation of Panel .................................................................................................................47

8.5 Install of Outdoor Unit ...........................................................................................................49

8.6 Products Electric Installation ..................................................................................................58

8.7 Schematic Diagram of Unit Line Connection .........................................................................60

9. Test Operation ........................................................................................................61

9.1 Prepare for test ........................................................................................................................61

9.2 Testing .....................................................................................................................................61

9.3 Emergency operation. ..............................................................................................................61

10. Optimum Operation .............................................................................................62

11. Care and Maintenance(It should be done by professionals) ................................63

12. Trouble Shooting ..................................................................................................67

13. Appendix ..............................................................................................................71

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Safety Considerations

Please read this manual carefully before use and operate correctly as instructed in the manual.

You are specially warned to note the two symbols below:

A symbol indicating that improper operation might cause human death or severe injury;
A symbol indicating that improper operation might cause human property damage.

This unit shall be used in ofces, restaurants, residences or similar places.

WARNING!

● Please seek an authorized repair station for installation work. Improper installation might cause water

leakage, electric shock or re.

● Please install at a place strong enough to support the weight of air conditioner unit. If not, the air

conditioner unit might fall down and cause human injury or death.

● To ensure proper drainage, the drainage pipe shall be correctly installed according to installation

instructions. Take proper measures for heat preservation to prevent condensing. Improper installation of

pipes might cause leakage and wet the articles in the room.

● Do not use or store flammable, explosive, poisonous or other dangerous substances beside the air

conditioner.

● In case of trouble (e.g. burnt smell), please immediately cut off the main power of air conditioner unit.

● Keep air ow to avoid shortage of oxygen in the room.

● Never insert your nger or any objects into air outlet and inlet grill.

● Never plug or unplug the power cable directly to start or stop the air-conditioning unit.

● Please take constant care to check if the mounting rack is damaged after long use.

● Never modify the air conditioner. Please contact the dealer or professional installation workers for repair

or relocation of the air conditioner.

● The appliance shall not be installed in the laundry.

● Before installation, please check the power supply for compliance with the ratings on nameplate. Check

the power safety as well.(Operating by professional)

● Before use, please check and conrm if the cables, drainage pipes and pipelines are correctly connected,

hence to eliminate the risk of water leakage, refrigerant leakage, electric shock or re.

● Main power must be securely earthed to ensure effective grounding of air conditioner unit and avoid the

risk of electric shock. Please do not connect the earthing cable to coal gas pipe, water pipe, lightning rod or

telephone line.

● Once started, the air conditioner shall not be stopped at least after 5 minutes or longer; otherwise the oil

return to compressor may be affected.

● Do not let the child to operate the air conditioner unit.

● Do not operate the air conditioner unit with wet hand.

● Please disconnect the main power before cleaning the air conditioner or replacing the air lter.(Operating

by professional)

● Please disconnect the main power if to put the air conditioner unit out of use for a long period.

● Please do not expose the air conditioner unit directly under corrosive environment with water or moisture.

● Please do not foot on or place any goods on air conditioner unitAfter electrical installation, the air

conditioner unit shall be energized for electrical leakage test.(Operating by professional)

● If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly

qualied 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 xed wiring.

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

● The temperature of refrigerant circuit will be high, please keep the interconnection cable away from the

copper tube.

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Read the following carefully to assure safe use.

NOTE: Children should be supervised to ensure that they do not play with the appliance.

DC Inverter Cassette Type Air Conditioner Installation and Operation Manual

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NOTE: 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.

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1. Names and Functions of Parts

Indoor Unit Outdoor Unit

FSKI-121B-EU FSOI-121B
FSKI-181B FSOI-181B
FSKI-241B FSOI-241B
FSKI-301B FSOI-301B
FSKI-361B FSOI-361B
FSKI-451B FSOI-451B
FSKI-361B FSOI-361B-3F
FSKI-451B FSOI-451B-3F

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2. Displaying Part

Fig. 1 Outline of wired controller

2.1 LCD Display of Wired Controller

Fig.2 LCD display

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2.2 Instruction to LCD Display

Table 1 Instruction to LCD Display

No. Description Instruction to Displaying Contents

1 Swing Swing function

2 Air

＊

Air exchange function

3 Sleep Sleeping states

4 Running mode

Each kind of running mode of in Each kind of running mode of indoor

unit (auto mode)

5 Cooling Cooling mode

6 Dry Dry mode

7 Fan Fan mode

8 Heating Heating mode

9 Defrost Defrosting state

10 Gate-control card

＊

Gate control

11 Lock Lock state

12 Shield

Shielding state (buttons, temperature, on/off, mode or save is shielded by

long-distance monitoring

13 Turbo Turbo function state

14 Memory

Memory state (Indoor unit resumes original setting state after power
failure and then power recovery)

15 Twinkle Flicking when unit is on without operation of buttons

16 Save Energy-saving state

17 Temperature Ambient/setting temperature value

18 E-Heater

＊

E-HEATER display means electric-heater is available

19 Blow Blow mark

20 Timer Timer-displayed location

21 Quiet Quiet state(two types: quiet and auto quiet)

Notes: The functions with * are reserved for other models and are not applicable for the models listed in this manual.

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3. Buttons

3.1 Silk Screen of Buttons

Fig.3 Silk Screen of Buttons

3.2 Instruction to Function of Buttons

Table 2 Instruction to Function of Buttons

No. Description Function of Button

1 Enter/Cancel

①

Function selection and canceling;

②

Press it for 5s to enquiry the outdoor ambient temperature.

2 ▲

①

Running temperature setting of indoor unit, range :16～30°C

②

Timer setting, range:0.5-24hr

③

Switchover between quiet/auto quiet

6 ▼

3 Fan Setting of high/middle/low/auto fan speed

4 Mode Setting of cooling/heating/fan/dry mode of indoor unit

5 Function Switchover among these functions of air/sleep/turbo/save/e-heater/blow/quite

7 Timer Timer setting

8 On/off Turn on/off indoor unit

4 Mode

and

2 ▲

Memory
function

Press Mode and ▲for 5s under off state of the unit to Enter/Cancel key memory function
(If memory is set, indoor unit will resume original setting state after power failure and then
power recovery. If not, indoor unit is defaulted to be off after power recovery. Memory
function is defaulted to be set before outgoing.)

2 ▲

and

6 ▼

Lock

Upon startup of the unit without malfunction or under off state of the unit, press ▲ ▼ key
at the same time for 5s in to lock state. In this case, any other buttons won’t respond the
press. Repress ▲ ▼ key for 5s to quit lock state.

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4. Installation of Wired Controller

Fig.4 Sketch for Installation of Wired Controller

No. 1 2 3 4 5

Description

Socket’s base box
installed in the wall

Soleplate of
controller

Screw M4

×

25

Front panel of

controller

Screw ST2.2×6.5

Fig.4: Sketch for Installation of Wired Controller. Pay attention to the following items during installation of

wired controller:

1. Cut off power supply of heavy-current wire embedded in mounting hole in the wall before installation. It

is prohibited to perform the whole procedure with electricity.

2. Pull out 4-core twisted pair line in mounting hole and then make it through the rectangle hole at the back

of controller’s soleplate.

3. Joint the controller’s soleplate on wall face and then x it in mounting hole with screws M4×25.

4. Insert the 4-core twisted pair line through rectangle hole into controller’s slot and buckle the front panel

and soleplate of controller together.

5. At last, x the controller’s front panel and soleplate with screws ST2.2×6.5.

Caution:
During connection of wirings, pay special attention to the following items to avoid interference of

electromagnetism to unit and even failure of it.

1. To ensure normal communication of the unit, signal line and wiring (communication) of wired controller

should be separate from power cord and indoor/outdoor connection lines. The distance between them should be

kept 20cm in min.

2. If the unit is installed at the place where there is interference of electromagnetism, signal line and wiring

(communication) of wired controller must be shielded by twisted pair lines.

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5. Instruction to Operation

5.1 On/Off

Press On/Off button to turn on the unit.
Repress this button to turn off the unit.

Note: The state shown in Fig.5 indicates off-state of the unit after energization.
The state shown in Fig.5 indicates on-state of the unit after energization.

Fig.5 Off state of the unit Fig.6 On state of the unit

5.2 Mode Setting

Under on-state of the unit, press Mode button to switch the operation modes as the following sequence:

Fig.7

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5.3 Temperature Setting

Press ▲ or ▼button to increase or decrease of setting temperature under on-state of the unit. If press either

of them continuously, temperature will be increased or decreased by 1°C every 0.5s.

In Cooling, Dry, Fan and Heating mode, temperature setting range is 16°C~30°C.
In Auto mode, the setting temperature is un-adjustable.

As shown in Fig.8:

Fig. 8

5.4 Fan Speed Setting

Press Fan button, fan speed of indoor unit will change as below:

As shown in Fig.9:

Fig.9

5.5 Swing Control Function

Under on-state of unit, press Function button till the unit enters swing control function and then press Enter/

Cancel button to turn on “swing” control function.

During swing function, press Function button till the unit enters swing control function and then press

Enter/Cancel button to cancel swing control function.

Swing control function setting is shown in Fig.10 :

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Fig.10 Swing control function setting

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5.6 Timer Setting

Press Timer button to set timer off of the unit. Under off-state of the unit, press Timer button to set timer on

of the unit in the same way.

Timer on setting: Under off-state of the unit without timer setting, if Timer button is pressed, LCD will
display xx. Hour, with ON blinking. In this case, press▲ or ▼ button to adjust timer on and then press Timer
to conrm. If Mode button is pressed before pressing Timer button to conrm, timer mode will be switched
to timer off setting mode. In this case, LCD displays xx. Hour, with OFF blinking. In this case, press▲ or ▼
button to adjust timer off and then press Timer to conrm. When LCD displays:“xx. Hour on off ”; xx. Hour
means time of timer on, but time of timer off won’t be displayed.

Timer off setting: Under on-state of the unit without timer setting, if Timer button is pressed, LCD will
display xx. Hour, with OFF blinking. In this case, press▲ or ▼ button to adjust timer on and then press Timer
to conrm. If Mode button is pressed before pressing Timer button to conrm, timer mode will be switched

to timer on setting mode. In this case, LCD displays xx. Hour, with ON blinking. In this case, press▲ or ▼
button to adjust timer on and then press Timer button to conrm. When LCD displays xx. Hour On Off, xx.

Hour means time of timer off, but time of timer on won’t be displayed.

Cancel timer: After setting of timer, if Timer button is pressed, LCD won’t display xx. Hour so that timer

setting is canceled.

Timer off setting under on-state of the unit is shown as Fig.11:

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Continued

Fig.11 Timer setting under on state of the unit

Timer range: 0.5-24hr. Every press of▲ or ▼ button will make setting time increased or decreased by 0.5hr.
If press either of them continuously, setting time will automatically increase/ decrease by 0.5hr every 0.5s.

Note:

1. If both timer on and timer off are set in unit on interface, the wired controller only display time of time

off. If both of them are set in unit off-state, only time of timer on is displayed.

2. Timer on in unit on-state is timed from the time of unit off and timer off in unit off-state is timed from the

time of unit on.

5.7 Air Exchange Setting

＊

Turn on air Exchange function:

Under on-state of the unit, press Function button to go to this function setting (Air mark blinks).AIR
1 displayed at the ambient temperature-displayed location (888) is defaulted (the last type of AIR will be
displayed after adjustment).Press ▲ or ▼ button to adjust air type. Press Enter/Cancel button to turn on/off air
function. After turning on this function, the air mark shows.

There are 10 types of AIR, but only 1-2 types are for remote control. Refer to the following details:

● 1――The unit continuously runs for 60min, and fresh air valve runs for 6 min.

● 2――The unit continuously runs for 60min, and fresh air valve runs for 12 min.

● 3――The unit continuously runs for 60min, and fresh air valve runs for 18 min.

● 4――The unit continuously runs for 60min, and fresh air valve runs for 2 4 min.

● 5――The unit continuously runs for 60min, and fresh air valve runs for 30 min.

● 6――The unit continuously runs for 60min, and fresh air valve runs for 36 min.

● 7――The unit continuously runs for 60min, and fresh air valve runs for 42 min.

● 8――The unit continuously runs for 60min, and fresh air valve runs for 48 min.

● 9――The unit continuously runs for 60min, and fresh air valve runs for 54 min.

● 10――The unit continuously runs for 60min, and fresh air valve always runs.

Turn off air Exchange function: During Air function, press Function button to go to the Air function. In
this case, air mark is blinking, and then press Enter/Cancel button to turn off this function. Air mark will
subsequently disappear.

Air Exchange setting is shown as in Fig.12:

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Fig.12 Air exchange device

Note:In air exchange mode, press Function button or there is not any operation within 5s after the last
button operation, the system will be quit from air exchange setting and current energy-saving data won’t be

memorized.

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5.8 Sleep Setting

Sleep on: Press Function button under on-state of the unit into sleep function and then press Enter/Cancel
button to turn on sleeping function.

Sleep off: During sleep on-state, press Function button to go to the sleep function and then press Enter/
Cancel button to turn off this function.

Sleep setting is shown as Fig. 13:

Fig.13 Sleep setting

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Sleep setting is clear after power failure and then power recovery. There is not sleep function in fan and auto

mode.

Note:

In cooling and dry mode, if the unit with sleep function has run for 1 hour, the preset temperature will be
increased by 1°C and 1°C in another 1 hour. After that, the unit will run at this temperature. In heating mode,
if the unit with sleep function has run for 1 hour, the preset temperature will be decreased by 1°C and 1°C in
another 1 hour. After that, the unit will run at this temperature.

5.9 Turbo Function Setting

TURBO function: The unit at high fun speed can realize quick cooling or heating so that room temperature
can quickly approach setting temperature.

In cooling or heating mode, press Function button till the unit enters TURBO function and then press
Enter/Cancel button to turn on TURBO function.

During TURBO function, press Function button till the unit enters TURBO function and then press Enter/
Cancel button to cancel TURBO function.

TURBO function setting is shown in Fig.14:

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(continued)

Fig.14 Turbo Function Setting

Note:

TURBO function will be turned off after power failure and then recovery. In dry, fan and auto mode,
TURBO function can not be set and TURBO mark won’t be displayed.

TURBO function will be automatically canceled after setting of quiet function.

5.10 SAVE Function Setting

Energy Saving Function: Energy saving can make the air conditioner runs in a smaller temperature range
by setting lower limited value of setting temperature in cooling or dry mode and upper limited value in heating

mode.

①

Energy Saving Setting for Cooling

Under on-state and in cooling or dry mode of the unit, press Function button into energy saving function,

with SAVE blinking .Press ▲ or ▼ button to adjust lower limited value of setting temperature in cooing mode.

After that press Enter/Cancel button to turn on energy saving function for cooling.

Under on-state and in cooling or dry mode of the unit, press Function button into energy saving function ,

with SAVE blinking .Press ▲ or ▼ button to adjust lower limited value of setting temperature in cooing mode.

After that press Enter/Cancel button to turn on energy saving function for cooling.

②

Energy Saving Setting for Heating

Under on state and in heating mode of the unit, press Function button into energy saving function, with
SAVE blinking. Press Mode button into energy saving function for heating and then press▲ or ▼ button to
adjust upper limited value of setting temperature in heating mode. After that, press Enter/Cancel button to turn
on energy saving function for heating.

After energy saving function is turned on, press Function button into energy saving function and press
Enter/Cancel to cancel this function.

The energy saving setting is shown in the g15:

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Fig.15 Energy Saving Setting

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Note:

1. In Auto running mode with save function on, the unit will be forcibly quit Auto running Mode and change

to current operation mode, After setting of save, sleep function will be canceled.

2. In save mode, if Function button is pressed or there is not any operation within 5s after the last button

operation, the system will be quit from save function setting and current data won’t be memorized.

3. After power failure and then recovery, save function setting will be memorized.

4. The lower limited value in cooling mode is 16°C and the upper limited value in heating mode is 30°C.

5. After save setting, if the setting temperature is out of the range in the mode, the limited value will prevail.

5.11 E-HEATER Setting

＊

E-HEATER: In the heating mode, E-heater is allowed to be turned on for improvement of efciency. If
heating mode is turned on by button operation, auxiliary electric heating function will be automatically turned

on.

Press Function button in heating mode to go to the auxiliary electric heating function, the E-HEATER
blinking, and press Enter/Cancel button to turn on this function. In this case, the E-HEATER will be

displayed, which means E-heater is allowed to be turned on.

If auxiliary electric heating function is on, press Function button to conrm or press Enter/Cancel button to
cancel. In this case, E-HEATER won’t be displayed, which means E-heater is prohibited to be turned on. The

setting of this function is shown as Fig.16 below:

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(continued)

Fig.16 Auxiliary Electric Heating Function Setting

Note:

E-HEATER can not be set in cooling, dry and fan mode, E-HEATER mark won’t be displayed. The setting
is shown in Fig.16.

5.12 Blow Function Setting

BLOW function: After the unit is turned off, water in evaporator of indoor unit will be automatically
evaporated to avoid mildew.

In cooling and dry mode, press Function button till the unit enters BLOW function, with BLOW blinking,

and then press Enter/Cancel button to turn on this function.

In BLOW mode, press Function button till the unit enters BLOW function and then press Enter/Cancel
button to cancel this function.

BLOW function setting is shown in Fig.17:

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Fig.17 Blow function setting

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Note:

After setting BLOW function, turn off the unit by pressing On/Off button on remote controller, indoor fan

will run at low fan speed for 10 min. (BLOW shows).Meanwhile, if BLOW function is canceled indoor fan
will be turned off directly.

There is not BLOW function in fan or heating mode.

5.13 Quiet Function Setting

Quiet function consists of two kinds: QUIET and AUTO QUIET.

Press Function button till the unit enters quiet function setting state, Quiet or Auto Quiet mark blinks. In this
case, press▲ or ▼ button to switch between Quiet and Auto Quiet and then press Enter/Cancel button to turn

on this function.

In quiet mode, press Function button till the unit enters quiet function. In this case, Quiet or Auto Quiet icon

blinks and then press Enter/Cancel button to cancel this function.

Quiet function setting is shown in Fig.18:

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(continued)

Fig.18 Quiet function setting

Note:

1. During quiet function, fan speed is un-adjustable.

2. When turning on auto quiet function, the unit will enter quiet running state according to temperature
difference between room temperature and setting temperature. In this case, fan speed is adjustable. If
temperature difference between room temperature and setting temperature ≥ 4°C, fan will keep its current
speed; if 2°C≤temperature difference ≤3°C; fan speed will be reduced by one grade ,but if it is at minimum
grade, it is un-adjustable.; if temperature difference ≤1°C, fan speed will be at minimum grade

3. In auto quiet mode, fan speed can not be raised but reduced. If high fan speed is manually adjusted, auto
quiet mode will quit.

4. There is not auto quiet function in fan or dry mode. Quiet off is default after power failure and then power

recovery.

5. If quite function is set, turbo function will be canceled.

5.14 Field Functions

Under off-state of the unit, press Function and Timer buttons continuously for 5s to go to the debugging

menu. Press Mode button to adjust the setting items and ▲ or ▼ button to set the actual value.

5.14.1 Ambient Temperature Sensor Setting

In eld setting mode, press Mode button to adjust the temperature displayed location displaying 00, and

press ▲ or ▼ button to adjust setting state at timer displayed location. There are 3 types for selection:

● Indoor ambient temperature is that at return air inlet (01 is displayed at timer displayed location)

● Indoor ambient temperature is that at the place of screen (02 is displayed at timer displayed location)

● Return air inlet temperature sensor shall be selected for cooling, dry and fan modes and wired controller

temperature sensor (03 is displayed at timer displayed location) shall be selected for heating and auto modes.

5.14.2 Three Grades of Speed for Indoor Fan

＊

In field setting mode, press Mode button to adjust the temperature displayed location displaying 01 and

press ▲ or ▼ button to adjust setting state at timer displayed location. There are 2 types for selection:

● 3 low grades (LCD displays 01)

● 3 high grades (LCD displays 02)

Three low grades indicate high, medium and low grades and 3 high grades indicate super-high, high and

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medium grades.

Press Enter/Cancel button to save the setting and quit after setting. If there is not any operation within 20s

after the system responds to the last button operation in this interface, the system will quit this menu and display
normal off-state; meanwhile, current setting won’t be saved.

5.15 Other Functions

5.15.1 Lock Function

Upon startup of the unit without malfunction or under off-state of the unit, press ▲ and ▼buttons at the

same time for 5s till the wired controller enters lock state. In this case, LCD displays

. After that, repress these

two buttons at the same time for 5s to quit lock state.

Under lock state, any other buttons won’t give any response to the press.

5.15.2 Memory Function

Memory switchover: Under off-state of the unit, press Mode and ▲ buttons at the same time for 5s to switch
memory modes. During setting memory mode, Memory will be displayed. If this function is not set, the unit
will be under off state after power failure and then power recovery.

Memory recovery: If memory mode has been set for wired controller, the wired controller after power failure
will resume its original running state upon power recovery.

Note:It will take about 5 seconds to save all the information, therefore, please do not cut down the power at

this time, or it may fails.

5.15.3 Enquiry of Outdoor Ambient Temperature

Under on or off state of the unit, press Enter/Cancel button for 5s, outdoor ambient temperature will be
displayed at temperature displaying location after a sound of click . This enquiry state will quit by pressing any
button. If there is not any operation for 20s, it will automatically quit.

Note:This function will be shielded after energization of 12hr for some models of the units without outdoor

ambient sensors. Please refer to Instruction for details.

If malfunction of outdoor ambient sensor occurs, this function will be shielded in 12hr.

5.15.4 Selection of Centigrade and Fahrenheit

Under off state of the unit, press Mode and ▼ at the same time for 5s, the displayer panel will switch
between Centigrade and Fahrenheit.

5.15.5 Master/Slave Wired Controller Setting

Under the off status of the unit, press “Enter/Cancel” and “Mode” at the same time for 5 seconds to go to

the master/slave wired controller setting interface, and then press ▲ or ▼ to make the adjustment. In this case,
only in the temperature display is there numbers displayed, 01 for the master wired controller and 02 for the
slave wired controller.

After that, press “Enter/Cancel” to save the setting and quit this interface. If there is not any operation in 20
seconds on this interface after the last button press, the system will quit automatically to the normal off status
without saving the current setting.

Note: If there is only one wired controller, it only can be set as the master; otherwise the unit won’t run

normally.

5.15.6 Gate-control Display Function

＊

If there is gate control system, the unit can run after plugging in card and stop after pulling out the card.

If memory function is on, the unit after plugging out of card and then plugging in will run according to the
memory. If the card is not plugged in (or poor plugging), the mark

will show and the unit will be turned off.

If memory function is off, the unit after plugging out the out will be turned off and the mark will show. If

re-plugging in the card, the mark

will disappear and the unit enter will enter off state.

Note:

1. During long-distance monitoring, the unit on /off cannot be controlled by the card, but the mark

will

also show after plugging in the card.

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2. The unit cannot be controlled by button operation after plugging out the card.

6. Error Display

If there is malfunction during running of the system, LCD will display error code at temperature–displayed
location. Once there is more than one malfunction, error codes will be displayed circularly. If there are multiple
circuit systems, the system number of failed system will be displayed before the colon (not for single system).

If malfunction occurs, turn off the unit and contact nearest dealer for help.

As shown in Fig.19, it means high pressure protection of system 2 under unit on.

Fig. 19

Error code meaning:

Error code Malfunction

E0 Water Pump Malfunction

E1 High pressure protection of compressor

E3 Low pressure protection of compressor

E4 High discharge temperature protection of compressor

E5 Compressor overload or drive error

E6 Communication malfunction

E9 Water overow protection

F0 Indoor unit ambient sensor malfunction at air return opening

F1 Evaporator sensor malfunction

F2 Condenser sensor malfunction

F3 Outdoor unit ambient temperature sensor malfunction

F4 Discharge temperature sensor malfunction

F5 Ambient sensor malfunction on Displayer (or LED board)

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The LED Indicator Display on the Main Board of Outdoor Unit (12K)

This table is applicable to the electric control box of the12K C Series DC inverter air conditioners. Some of
the items are not malfunction; they mean the normal running status.

Running Status

Outdoor unit

Yellow Lamp

Outdoor unit

Red Lamp

Outdoor unit
Green Lamp

wired

controller

Display

Compressor started Flash once

Defrosting Flash twice Displayed

Anti-freezing protection Flash 3 times E2

IPM protection Flash 4 times E5

Over-current protection Flash 5 times E5

Heat exchanger overload protection Flash 6 times /

Discharge protection Flash 7 times E4

Compressor overload protection Flash 8 times E5

Power protection Flash 9 times E5

Module overheating protection Flash 10times E5

EEPROM reading error Flash 11 times E5

Low voltage protection Flash 12times E5

High voltage protection Flash 13times E5

PFC over-current protection Flash 14times E5

Unmatched indoor and outdoor units Flash 16times /

Limited frequency(current) Flash once /

Limited frequency (discharge) Flash twice /

Limited frequency (overload) Flash 3 times /

Reduced frequency (anti-freezing) Flash 4 times /

Outdoor ambient temperature sensor error Flash 6 times F3

Outdoor pipe temperature sensor error Flash 5 times F2

Outdoor discharge temperature sensor error Flash 7 times F4

Up to the startup temperature Flash 8 times /

Limited frequency(module temperature)

Flash 11times

/

Limited frequency (power)

Flash 13times

/

Communication normal

Flash

continuously

/

Communication error Black out E6

Indoor ambient temperature sensor error F0

Indoor pipe temperature sensor error F1

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Denition of Malfunction Codes of DC Inverter General Outdoor Unit (V1.6)

This table is applicable to the electric control box of the other models of C-Series DC inverter air
conditioners.

Malfunction Item

Outdoor unit display of dual 8

numeral tube

Indoor Unit Display

DC busbar over voltage protection PH E5

PFC or IPM temperature too high P8 E5

Current sensor malfunction Pc E5

PFC or IPM temperature sensor error P7 E5

Compressor current protection P5 E5

DC busbar under voltage protection PL E5

Compressor startup failure Lc E5

PFC abnormality Hc E5

Drive resetting P0 E5

The compressor motor in loss of synchronization H7 E5

Missing phase, Speed discard Ld E5

Malfunction from driving part to main-control communication P6 E5

IPM module protection H5 E5

Sensor connection protection Pd E5

High-pressure protection E1 E1

Low-pressure protection E3 E3

Exhaust protection E4 E4

Compressor overload protection H3 E5

Communication malfunction (among indoor unit, outdoor unit
and wired controller)

E6 E6

Outdoor ambient temperature sensor malfunction F3 F3

Coil pipe intermediate temperature sensor malfunction of outdoor
unit

F2 F2

Exhaust temperature sensor malfunction F4 F4

Defrosting (non-malfunction) 08 defrost

Oil return (non-malfunction) 09 no display

Mismatch of indoor unit model LP no display

AC current protection (input side) PA E5

Driver board environment temperature sensor malfunction PF E5

AC input voltage abnormality * PP E5

Charge circuit malfunction * PU E5

DC fan error H6 E5

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Instructions to the Error Indicating Lamps on the Panel of the Cassette Type Unit.

Instructions to the error indicating lamps on the dash receiver of the cassette type unit are described below.
Once the handheld controller works, the error code will be displayed on it.

Instructions to three indicating lamps on the dash receiver of the cassette type unit.

Timer Indicating Lamp (yellow): it ashes when the timer is on and goes out when the timer is off.

It ashes when an error about the temperature sensing bulb occurs:

It ashes once when the indoor temperature sensing bulb fails.

It ashes twice when the evaporator temperature sensing bulb fails.

It ashes three times when the condenser temperature sensing bulb fails .

It ashes four times when the outdoor temperature sensing bulb fails.

It ashes ve times when the air discharge temperature sensing bulb fails.

Compressor Indicating Lamp (green): it flashes when the compressor is on and goes out when the

compressor is off.

It ashes when an error about the defrosting or the compressor occurs:

It ashes once on the condition of the mode conict.

It ashes twice on the condition of defrosting.

It ashes three times on the condition of the high pressure.

It ashes four times on the condition of the low pressure.

It ashes ve times on the condition of the overload.

It ashes six times on the condition of the air discharge.

Running Indicating Lamp (red): it ashes when the unit is on and goes out when the unit is off.

It ashes when an error about the indoor unit occurs:

It ashes once when the communication malfunction.

It ashes twice when the water overow error occurs.

It ashes three times when the anti-freezing error occurs.

It ashes four times when the hi-temperature error occurs.

It ashes ve times when the test runs forcibly.

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7. Remote Control Operation Procedure(standard tting)

7.1 Name and Function-Remote Control

Note:

● Be sure that there are no obstructions between receiver and remote controller.

● Don’ t drop or throw the remote controller .

● Don’ t let any liquid in the remote controller and put the remote controller directly under the sunlight or

any place where is very hot.

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7.2 Name and Function-Remote Control. (Remove the cover)

Note:

This type of remote controller is a kind of new current controller. Some buttons of the controller which are
not available to this air conditioner will not be described below.

Operate on unmentioned buttons would not impact on the normal use.

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7.3 COOL mode operation procedure

According to difference between room temp. and set temp., microcomputer can control cooling on or not.

If room temp. is higher than set temp., compressor runs at COOL mode.

If room temp. is lower than set temp., compressor stops and only indoor fan motor runs.

Set TEMP. should be in range of 16°C to 30°C.

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7.4 HEAT mode operation procedure

If room temp. is lower than set temp. compressor runs at HEAT mode;

If room temp. is higher than set temp., compressor and outdoor fan motor stop, only indoor fan motor runs.

Set TEMP. should be in range of 16°Cto 30°C.

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7.5 DRY mode operation procedure

If room Temp. is more than 2°C below Set TEMP. , compressor and outdoor unit fan motor stop, indoor unit
fan motor runs at low speed.

If room Temp. is between 2°C of Set TEMP. , the compressor and outdoor unit fan motor will run for 6
minutes and stop for 4 minutes, and always in such a cycle, the indoor unit fan motor will run at low speed.

If room Temp. is more than 2°C above Set TEMP. , compressor and outdoor unit fan motor run as COOL

mode , the indoor unit fan motor runs at low speed.

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7.6 AUTO mode operation procedure

According to room temp. microcomputer can automatically set COOL.HEAT.DRY operation mode, so as far
best effect.

At AUTO mode operation, standard TEMP. is 26°C for COOL mode, 24°C for DRY mode and 20°C for
HEAT mode.

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7.7 FAN mode operation procedure

Connect the unit to power supply.

Press the “ON/OFF” key.

Press the mode key to select the “FAN” mode. The unit shall operate under “FAN” mode.

Press the “FAN” key to select from high, medium and low speed.

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7.8 TIMER operation procedure

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7.9 SLEEP mode operation procedure

When the unit is cooling or drying, if SLEEP operation is set, TEMP. would increase 1°C in 1 hour and 2°C
in 2 hours. Indoor fan motor runs at low speed.

When the unit is heating , if SLEEP operation is set, TEMP. would decrease 1°C in 1 hour and 2°C in 2
hours. Indoor fan motor runs at low speed.

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7.10 How to insert batteries

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8. Instructions of Unit Installation

8.1 Installation Notes

Location Noise

The air conditioner must be firmly installed and 3 4

liability checks must be done every year.

Avoid place within easy reach of young children.

Avoid other heat sources or direct sun light.

Install indoor unit away from TV set or radio.

Avoid where inflammable gas is likely to leak.

At salty coastal areas or special areas such as the vicinity

of a sulphurous hot spring,please contact dealer before

installation to make sure it is safe to use the unit.

Not to be installed in laundries.

Select a place with good ventilation or it may affect

performance or increase noise.

Install the air conditioner on a foundation that can

withstand its weight.insufficient strength may result in

the fall of equipment and cause injury.

Select a place so as not to annoy neighbor with the hot

air or noise.

Never place objects near the air outlet or the unit,it may

affect performance or increase noise.

If there is abnormal noise during the operating,contact

dealer immediately.

tnemegnarra gniriWnoitatropsnart dna noitallatsnI

Installation and transportation of the unit must be done

by skilled personnel.

Be sure to use only the specified accessories and parts

for installation,failure to use may lead to electric shock,

leakage or fire.

Carry out installation with consideration of strong winds,

typhoons,or earthquakes.Improper installation work

may result in accidents due to fall of equipment.

If the unit is to be moved to other place,please consult

dealer first.

Make sure wiring is carried out by qualified personnel

according to laws and regulations and this manual,using

a separate circuit and suitable fuse.

Be sure to install an earth leakage breaker.

Diameter of power supply cord must be big enough .

Earth

Water pipe

Some parts of the water pipe are made of plastic

materials and not suitable for earthing.

Gas pipe

If there is electrical leakage accidently from air

conditioner,it is easy to cause fire or explosion.

Do not connect the earth wire to gas or water pipes,lightning conductor or telephone earth wire.

Be sure to connect the earth wire to earth device of the building .Install an earth leakage breaker.

If the supply cord is damaged, it must be replaced by
the manufacturer or its service agent or a similary
qualified person in order to avoid a hazard.
The appliance shall be installed in accordance with
relative wiring regulations.

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8.2 Install of the Cassette Type Indoor Unit

8.2.1 Schematic diagram of installation space

Models H(mm)

FSKI-121B-EU 250

FSKI-181B /FSKI-241B 260

FSKI-301B/FSKI-361B/FSKI-451B

340

8.2.2 Select install location of the indoor unit

1. Obstruct should put away from the intake or outlet vent of the indoor unit so that the airow can be blown

though all the room.

2. Make sure that the installation had accord with the requirement of the schematic diagram of installation

spaces.

3. Select the place where can stand 4 times of the weight of the indoor unit and would not increase the

operating noise and oscillate.

4. The horizontally of the installation place should be guaranteed.

5. Select the place where is easy to drain out the condensate water, and connect with outdoor unit.

6. Make sure that there are enough space for care and maintenance. Make sure that the height between the

indoor unit and ground is above 1800mm.

7. When installing the suspender bolt, check if the install place can stand the weight 4 times of the unit’s. If

not, reinforce before installation. (Refer to the install cardboard and nd where should be reinforced)

Note:

There will be lots of lampblack and dust stick on the acentric fan, heat exchanger and water pump in dining
room and kitchen, which would reduce the capacity of heat exchanger, lead water leakage and abnormal
operation of the water pump.

The following treatment should be taken under this circumstance:

1. Ensure that the smoke trap above cooker has enough capacity to obviate lampblack to prevent the indraft

of the lampblack by the air conditioner.

2. Keep the air conditioner far from the kitchen so that the lampblack would not be indraft by the air

conditioner.

8.2.3 Important notice

To guarantee the good performance, the unit must be installed by professional personnel according with this

instruction.

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Please contact the local Fisher special nominated repair department before installation. Any malfunction

caused by the unit that is installed by the department that is not special nominated by Fisher would not deal with

on time by the inconvenience of the business contact.

8.2.4 Dimension of ceiling opening and location of the hoisting screw (M10)

FSKI-121B-EU

FSKI-181B / FSKI-241B / FSKI-301B/ FSKI-361B / FSKI-421B

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The drilling of holes in the ceiling must be done by the professional personnel.

Fig.20

Notes:

The dimension for the ceiling openings with * marks can be as large as 910mm. But the overlapping sections

of the ceiling and the decorated surface boards should be maintained at no less than 20mm.

8.2.5 Main body of hoisting air conditioner

Fig.21

1. The primary step for install the indoor unit.

When attach the hoisting stand on hoisting screw, do use nut and gasket individually at the upper and lower
of the hoisting stand to x it. The use of gasket anchor board can prevent gasket break off.

2. Use install cardboard

Please refer to the install cardboard about the dimension of ceiling opening.

The central mark of the ceiling opening is marked on the install cardboard.

Install the install cardboard on the unit by bolt (3 piece), and x the angle of the drainage pipe at the outlet

vent by bolt.

3. Adjust the unit to the suitable install place.

4. Check if the unit is horizontal.

Inner drainage pump and bobber switch are included in the indoor unit, check if 4 angle of every unit are
horizontal by water lever. (If the unit is slant toward the opposite of the coagulate water ow, there may be
malfunction of the bobber switch and lead water drop.)

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5. Backout the gasket anchor board used to prevent gasket break off and tighten the nut on it.

6. Backout the install cardboard.

Note:Please do tighten the nuts and bolts to prevent air conditioner break off.

8.2.6 Connect the refrigerant pipe

Selection of Connecting Pipe.

The refrigerant is R410A, GWP=2020 ODP=0

Table 3 refrigerant pipe selecting

Item

Model

Size of Fitting

Pipe (Inch)

Max
Pipe

Length

(m)

Max Height

Difference

between

Indoor Unit

and Outdoor

Unit(m)

Amount of
Additional

Refrigerant to

Be Filled (For

Extra Length of

Pipe)

Indoor Unit

Drainage Pipe

(Diameter

× Wall

Thickness)

(mm)

Gas

Pipe

Liquid

Pipe

3/8 1/4

20 15 30g/m

Φ32×3

1/2 1/4

5/8 3/8

30 15

60g/m

50 30

Note:

1. The standard pipe length is 5m, When the length (L) of the connecting pipe is less than or equals 7m,

there is no need to add refrigerant. If the connecting pipe is longer than 7m, it is required to add refrigerant, in

the above table, the amounts of refrigerant to be added for the models are listed for each additional meter of
pipe length.

2. The pipe wall thickness shall be 0.5-1.0mm and the pipe wall shall be able to withstand the pressure of

6.0MPa.

3. The longer the connecting pipe, the lower the cooling effect and the heating effect.

FSKI-121B-EU

FSOI-121B

FSKI-181B

FSOI-181B

FSKI-241B

FSOI-241B

FSKI-301B

FSOI-301B

FSKI-361B

FSOI-361B

FSKI-451B

FSOI-451B

FSKI-361BFSOI-361B-3F

FSKI-451BFSOI-451B-3F

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Fig.22

● When connect the pipe to the unit or backout it from the unit, please do use both spanner and torque

wrench. As shown in Fig.22.

● When connect, smear both inside and outside of the are nut with freeze motor oil, screw it by hand and

then tighten it with spanner.

● Refer to Table 4 to check if the wrench had been tightened (too tight would mangle the nut and lead

leakage).

Table 4 the tightening torque needed for tightening nut

Diameter(Inch) Surface thickness(mm) Tightening torque (N·m)

φ1/4 ≥0.5 15-30

φ3/8 ≥0.71 30-40

φ1/2 ≥1 45-50

φ5/8 ≥1 60-65

φ3/4 ≥1 70-75

● Examine the connection pipe to see if it had gas leakage, and then take the treatment of heat insulation, as

shown in the Fig.22.

● Only use median sponge to entwine the wiring interface of the gas pipe and heat preservation sheath of

the gas collection tube.

8.2.7 Drainage hose

1.Install the drain hose

● The diameter of the drain hose should be equal or bigger than the connection pipe’s. (The diameter of

polythene pipe: Outer diameter 25mm Surface thickness ≥1.5mm)

● Drain hose should be short and drooping gradient should at less 1/100 to prevent the formation of air

bubble.

● If drain hose cannot has enough drooping gradient, drain raising pipe should be added.

● To prevent bent of the drain hose, the distance between hoisting stand should is 1 to 1.5m.

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● Use the drain hose and clamp attached. Insert the

drain hose to the drain vent, and then tighten the clamp.

● Entwine the big sponge on the clamp of drain hose to

insulate heat.

● Heat insulation should be done to indoor drain hose.

Note of drainage raising pipe :

● The install height of the drain raising pipe should less than 280mm.

● The drain raising pipe should form a upright angle with the unit, and distance to unit should not beyond

300mm.

2.Instruction

● The slant gradient of the attached drain hose should be

within 75mm so that the drain hole doesn’t has to endure the

unnecessary outside force.

● Please install the drain hose according to the following

process if several drain hoses join together.

● Check the smoothness of drain after installation.

● Check the drain state by immitting 600cc water slowly from the outlet vent or test hole.

● Check the drain in the state of refrigerating after installation of the electric circuit.

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46

● Warning: Before obtaining access to terminals, all supply circuits must be disconnected.

8.3 Electric Wiring

1. All eld supplied parts and materials must conform to local laws and regulations.

2. For electric wiring, refer to WIRING DIAGRAM attached to the unit body.

3. All wiring must be performed by a skilled technician.

4. A circuit breaker capable of shutting down power supply to the entire system and which have at least 3

mm contact separation in each pole must be install in the xed wiring.

5. Earth properly.

6. Wiring must conform to national laws and regulations.

7. The xed wiring must be installed with a protector with no more that 30 mA leakage current.

8. If the supply cord is damaged, it must be replaced by the manufacturer or its service agents or a similar

qualied person in order to avoid a hazard.

Caution: Take great care when carrying out the following connections, so as to avoid malfunction of the air-

conditioning unit because of electromagnetic interference.

● The signal line of the Wired Controller must be separated from the power line and the connecting line

(signal wire) between the indoor unit and the outdoor unit.

● In case the unit is installed in a place vulnerable by electromagnetic interference, it is better to use

shielded cable or double-twisted cable as the signal wire.

8.3.1 Wiring of the indoor unit

①

Remove the control box lid, pull the wires inside through rubber bush and wiring according to the

WIRING DIAGRAM, then tighten it with clamp.

②

Remove the control box lid; pull wires inside through rubber bush

③

Connect the power supply cable to the “L, N” terminals and the grounding screw

④

Use cable fastener to bundle and x the cable.

⑤

After wiring, tighten it with clamp and x the control box lid.

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47

Precautions: Be sure to connect the indoor unit and outdoor unit at right poles.

8.3.2 Connection of Signal Line of Wired Controller

1. Open the cover of the electric box of the indoor unit.

2. Pull the signal cable of the Wired Controller through the rubber ring.

3. Plug the signal line of the Wired Controller onto the 4-bit pin socket at the circuit board of the indoor unit.

4. Use cable fastener to bundle and x the signal cable of the Wired Controller.

8.4 Installation of Panel

1.Set the panel to the indoor unit body by matching the position of the swing ap motor of the decoration

panel to the piping position of the indoor unit as shown in Fig.22.

2.Install the decoration panel

Hang the latch, which is located on the opposite side of the swing ap motor on the panel, temporarily to the
hook of the indoor unit. (2 Positions)

Temporarily hang the remaining 2 latches to the hooks on the sides of the indoor unit.(Be careful not to let
the swing motor lead wire get caught in the sealing material.)

Screw all 4 hexagon head screws located right beneath the latches in approximately 15mm.(Panel will rise)

Adjust the panel by turning it to the arrowed direction in Fig.23, so that the ceiling opening is completely

covered.

Tighten the screws until the thickness of the sealing material between the panel and the indoor unit body is

reduced to 5~8 mm.

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48

Fig. 23

Precautions:

1. Improper screwing of the screws may cause the troubles shown in Fig.24.

Fig.24

2. If gap is still left between the ceiling and the panel after screwing the screws, readjust the height of the

indoor unit body (Refer to Fig.25).

Fig.25

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49

After xing, make sure there is no gap between the ceiling and panel.

3. Wiring of the decoration panel.

Connect the joints for swing ap motor lead wire (at 2 places) installed on the panel (Refer to the gure
below)

Fig.26

NOTE: Two butted terminals connected with the panel must be placed inside the electric box; they should be

covered into the electric box by the electric box cover.

8.5 Install of Outdoor Unit

8.5.1 Prole dimensions of outdoor unit

Fig.27

Table 7 Unit: mm

Item
Model

A B C D E

776 320 540 510 286

955 396 700 560 360

980 427 790 610 395

1107 440 1100 631 400

FSOI-121B

FSOI-181B

FSOI-241B

FSOI-301B

FSOI-361B

FSOI-451B
FSOI-361B-3F
FSOI-451B-3F

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8.5.2 Schematic diagram of installation spaces

Fig. 28

8.5.3 Precautions on Installation of Outdoor Unit

To ensure the unit in proper function, selection of installation location must be in accordance with following

principles:

1. Outdoor unit shall be installed so that the air discharged by outdoor unit will not return and that sufcient

space for repair shall be provided around the machine.

2. The installation site must have good ventilation, so that the outdoor unit can take in and exhaust enough
air. Ensure that there is no obstacle for the air intake and exhaust of the outdoor unit. If there is any obstacle
blocking the air intake or exhaust, remove it.

3. Place of installation shall be strong enough to support the weight of outdoor unit, and it shall be able to
insulate noise and prevent vibration. Ensure that the wind and noise from the unit will not affect your neighbors.

4.Avoid direct sunshine over the unit. It is better to set up a sun shield as the protection.

5. Place of installation must be able to drain the rainwater and defrosting water.

6. Place of installation must ensure the machine will not be buried under snow or subject to the inuence of

rubbish or oil fog.

7. The installation site must be at a place where the air exhaust outlet does not face strong wind.

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8.5.4 gerant piping

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52

8.5.5 Pipe Preparation

1. Pipe & Electrical Wire Cutting

● Use cutting tools easily found in the market.

● Measure precisely both outer & inter pipes.

● The length of the pipe should be a little longer than the

actual measured value.

● The wire should be 1.5m longer than the refrigerant tube.

2. Reaming

● Clean the inside of the inner refrigerant tube.

● While reaming, the tube end must be on the top of the

reamer to prevent any dust going back into the tube.

3. Flaring the Pipe End

● Flare both ends of the pipe with aring kits by tting

the are nut on the pipe before aring. Set the die on the
pipe in the way that the pipe end is 0.5mm above the

top of the die. Then, check if the pipe end is even and
perfectly round or not.

4. Wire Connecting and Taping

(See the gure on right)

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53

8.5.6 Connecting pipe

1. Match the aring of copper pipe to the center of screwed connection, and then screw the ared nut up by

hands.

2. Screw aring nut with torque wrench until the spanner clatters, which is shown in the gure below.

Refer to Table 5 to check if the wrench had been tightened (too tight would mangle the nut and lead

leakage).

Table 5 the tightening torque needed for tightening nut

Diameter(Inch) Surface thickness(mm) Tightening torque (N·m)

φ1/4 ≥0.5 15-30

φ3/8 ≥0.71 30-40
φ1/2 ≥1 45-50
φ5/8 ≥1 60-65
φ3/4 ≥1 70-75

3. Degree of curvature of the tubing cannot be too small or the pipe might be broken up. When bend the
piping, bending apparatus shall be applied.

4. Brazing port shall be downward or horizontal when brazing the pipeline. Try to avoid the upward brazing
as shown in gure below which easily affects welding quality and causes leakage.

Upward facing

Burner

Solder

Downward facing

Side facing

5. Wrap connecting pipe and the joints that have not insulated with sponge and bind them up with plastic

tape.

8.5.7 Air Purging

The purpose of the air purging is to get rid of moisture and air in the system, otherwise moisture and air may

cause ineffectiveness of the compressor which directly affects the cooling capacity.

1. Purging by Using Vacuum

● Take out the nut cover of the inlet for refrigerant.

● Connect the tube of the vacuum watch with the vacuum

pump, having the low-pressure end linking to the inlet for
refrigerant. As shown in gure on right.

● Starting the vacuum pump, when the indicator turns to-1

bar, closing the low pressure handle and stopping vacuum.

Keep for 15 minutes, ensuring the pressure of the vacuum

DC Inverter Cassette Type Air Conditioner Installation and Operation Manual

54

watch remains.

● Take out the valve cover of the gas valve together with the liquid valve.

● Loosing the cord of liquid valve until the pressure rise to 0 bar.

● Dismantle the tube from the cover of the inlet for refrigerant then, tighten the cover.

● Loose the valve cord of the gas valve as well as the liquid valve entirely.

● Tighten the valve cover of the gas valve and liquid valve so as to check whether leakage occurred.

2. Gap Leakage Check

Check if it leaks or not by applying soapsuds on every joint and then inspect

carefully. After the check, wipe them off completely.

Cover the indoor unit joint with pipe insulation and four plastic bands to prevent

condensing at joints.

8.5.8 Liquid Pipe and Drain Pipe

● If the outdoor unit is installed lower than the indoor unit .

● A drain pipe should be above ground and the end of the pipe does not dip

into water. All pipes must be restrained to the wall by saddles.

● Taping pipes must be done from bottom to top.

● All pipes are bound together by tape and restrained to wall by saddles.

● If the outdoor unit is installed higher than the indoor unit .

● Taping should be done from lower to the upper part.

● All pipes are bound and taped together and also should be trapped to

prevent water from returning to the room .

● Restraint all pipes to the wall with saddles.

8.5.9 Installation of Protective Layer of Connecting Pipe

● To avoid generation of condensate on the connecting pipe and avoid leakage,
the big pipe and the small pipe of the connecting pipe must be covered by
thermal insulation materials, be bundled by adhesive tape, and be isolated from
air.

● The joint connecting to the indoor unit must be wrapped by thermal

insulation material. There shall be no gap between the connecting pipe joint and
the wall of the indoor unit. Refer to the gure on right.

Caution:

①

After the pipes are wrapped by protective materials, never bend the pipes to form very small angle, and

otherwise the pipes may crack or break.

②

Do not wrap the protective tape too tight, and otherwise the efficiency of thermal insulation may be

decreased. Ensure that the condensate drainage exible tube is separate from the bundled pipes.

③

After the protective work is completed and the pipes are wrapped, use seal material to block the hole in

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the wall, so as to prevent rain and wind from entering the room.

8.5.10 Connecting pipe

1. Match the aring of copper pipe to the center of screwed connection, and then screw the ared nut up by

hands.

2. Screw aring nut with torque wrench until the spanner clatters, which is shown in the gure below.

3. Use adhesive tape to wrap the pipes:

①

Use adhesive tape to bundle the connecting pipe and the cables together. To

prevent condensate from overowing out from the drainage pipe, separate the drainage
pipe rm the connecting pipe and the cables.

②

Use thermal insulation tape to wrap the pipes from the bottom of the outdoor

unit until the upper end of the pipe where the pipe enters the wall. When wrapping

thermal insulation tape, the later circle of tape must cover half of the front circle of

tape Refer to the gure on right.

③

Wrapped pipe must be xed to wall using pipe clamps.

8.5.11 Cautions in Connecting Pipes

The layout of connecting pipeline shall comply with the following principles according to actual situation.

1. The length of connecting pipe shall be short as much as possible and it is better to restrain the length

within 5m.

2. Shorten the height difference between indoor and outdoor unit as much as possible.

3. Reduce the height difference between indoor and outdoor units as it might be.

4. Lessen the quantity of elbows as much as possible.

5. When the length of connecting pipe exceeds 20m, check if the lubricant of the system is enough. If not,

add some in the oil trap properly.

6. Refrigerants volume inside the outdoor unit suit for connecting pipe with 7m. If connecting pipe shall be

prolonged, refrigerants shall be added accordingly. Every 1m prolonged, the added volume of refrigerant can

refer to Table 3. The allowable max length of pipe can be also found in the table.

7. When installing the unit, if difference in height between indoor and outdoor unit exceeds 10m, one oil

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56

loop is required every 6m. Please refer to Fig.29 for layout of pipeline.

Liquid pipe (thin pipe)

- - - - - - - - - - - - - - Gas pipe (heavy pipe)

Fig.29

8.5.12 Position and Method of Installing Wired Controller

1. One end of the control wire of the wired remote controller is connected to main board in the electric box

of indoor unit; it should be tightened by wire clamps, while the other end should be connected to the wired
controller. The special control wire be used between the indoor unit and wired remote controller, of which the

length is 8 meters.

2. The material to be adopted for the control wire should be metallic substance. The wired controller could

not be disassembled and the control wire to be used for the wired controller should not be changed by users

optionally. The installation and maintenance should be carried out by the installer.

3. Firstly select an installation position. According to the size of the control wire for the wired remote

controller, leave a recess or an embedded wire hole to bury the communication line.

4. If the control wire between the wired remote controller and the indoor unit is surface-mounted, use 1#

metallic pipe and make matching recess in the wall (refer to Fig. 30); If concealed installation is adopted, 1#
metallic pipe can be used (Refer to Fig. 31).

5. No matter if surface mounting or concealed mounting is selected, it is required to drill 2 holes (in the

same level) between which the distance shall be the same as the distance (60mm) of installation holes in the
bottom plate of the wired controller. Then insert a wood plug into each hole, x the bottom plate of the Wired
Controller to the way through these two holes, plug the control wire onto the control panel, and lastly install the
panel of the Wired Controller.( Refer to Fig. 4)

Fig.30 Fig.31

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57

Caution:
During the installation of the bottom plate of the wired controller, pay attention to the direction of the

bottom plate. The plate’s side with two notches must be at the lower position, otherwise the panel of the wired

controller cannot be correctly installed.

Caution:

1. The communication distance between the main board and the wired controller can be as far as 20m (The

standard distance is 8m).

2. The wired controller shall not be installed in a place where there is water drop or large amount of water

vapor.

8.5.13 Power Cable Connection

Caution: Before installing the electrical equipment, please pay attention to the following matters which have

been specially pointed out by our designers:

①

Check that if the power supply used conforms to the rated power supply specied on the nameplate.

②

The capacity of the power supply must be large enough. The section area of tting line in the room shall

be larger than that of Table 6 shows.

③

The lines must be installed by professional personnel.

An electricity leakage protection switch and an air switch with gap between electrode heads larger than 3

mm shall be installed in the xed line.

1. Connection of single wire

● Use wire stripper to strip the insulation layer (25mm long) from the end of the single wire.

● Remove the screw at the terminal board of the air-conditioning unit.

● User pliers to bend the end of the single wire so that a loop matching the screw size is formed.

● Put the screw through the loop of the single wire and x the loop at the terminal board.

2. Connection of multiple twisted wires

①

Use wire stripper to strip the insulation layer (10mm long) from the end of the multiple twisted wires.

②

Remove the screw at the terminal board of the air-conditioning unit.

③

Use crimping pliers to connect a terminal (matching the size of the screw) at the end of the multiple

twisted wires.

④

Put the screw through the terminal of the multiple twisted wires and x the terminal at the terminal board.

Warning:

● If the power supply exible line or the signal line of the equipment is damaged, only use special exible
line to replace it.

● Before connecting lines, read the voltages of the relevant parts on the nameplate. Then carry out line
connection according to the schematic diagram.

● The air-conditioning unit shall have special power supply line which shall be equipped with electricity

leakage switch and air switch, so as to deal with overload conditions.

● The air-conditioning unit must have grounding to avoid hazard owing to insulation failure.

● All fitting lines must use crimp terminals or single wire. If multiple twisted wires are connected to
terminal board, arc may arise.

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58

● All line connections must conform to the schematic diagram of lines. Wrong connection may cause
abnormal operation or damage of the air-conditioning unit.

● Do not let any cable contact the refrigerant pipe, the compressor and moving parts such as fan.

● Do not change the internal line connections inside the air-conditioning unit. The manufacturer shall not

be liable for any loss or abnormal operation arising from wrong line connections.

8.5.14 Connection of the Power Cable

1. Air-conditioning unit with single-phase power supply

①

Remove the front-side panel of the outdoor unit.

②

Pass the cable though rubber ring.

③

Connect the power supply cable to the “L, N” terminals and the

grounding screw.

④

Use cable fastener to bundle and x the cable.

2. Air-conditioning unit with 3-phase power supply

①

Remove the front-side panel of the outdoor unit.

②

Attach rubber ring to the cable-cross hole of the outdoor unit.

③

Pass the cable though rubber ring.

④

Connect the power cable to the terminal and earthing screws marked

“L1, L2, L3 & N”.

⑤

Use cable fastener to bundle and x the cable.

8.6 Products Electric Installation

Caution!

The unit should be reliably earthed, if it is improperly earthed that may cause electric shock or re.

Wiring layout:

● Installation should be conducted by National Wiring Regulation.

● he rated voltage and exclusive power supply must be adopted for the air conditioners.

● The power cable should be reliable and xed, in order to avoid the wiring terminal be suffered from force.

And do not drag the power cable forcibly.

● The wire diameter of power cable should be large enough, if power cable and connection wire

● be damaged, it should be replaced by the exclusive cable.

● All electric installation must be done by professional personnel according to local law, regulation and this
manual.

● It should be reliably earthed, and it should be connected to the special earth device, the installation work
should be operated by the professional.

● The creepage protecting switch and air switch must be installed.

● Air switch should have the thermal dropout and magnetic dropout function, in order to avoid the short
circuit and overload.

● The on spot connection should refer to the circuit diagram, which is stuck on the unit body.

Caution:

Take great care when carrying out

the following connections, so as to

avoid malfunction of the

air-conditioning unit because of

electromagnetic interference:

In case the unit is installed in a

place vulnerable by electromagnetic

interference, it is better to use

shielded cable or double-twisted

cable as the signal wire.

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59

Table 6 The model selection recommend table for air switch and power cable.

Model Power Supply

Capability of

Air Switch

Minimum Sectional

Area of Earth Wire

Minimum Sectional

Area of Power

Supply Wire

(A) (mm

2

) (mm2)

220-240V~

50Hz

16/6.0 2.5/1.0 2.5/1.0

20/6.0

4.0/1.0 4.0/1.0

25/6.0

380-415V

3N~

50Hz

16/6.0 2.5/1.0 2.5/1.0

1. The power cable used in the unit is copper cable; the working temperature should not exceed the specied

value.

2. If the power cable is longer than 15 meters, please enlarge the cross section of power cable adequately, in

order to avoid the accident due to overload.

3. The specication of power cord mentioned hereby is dened as the required specication when wiring

with BV single core cable (2 ~ 4 pieces) under the cover of PVC pipe, and environment temperature shall be at
40°C; Air switch shall be selected according to 40°C temperature condition. If the installation condition on site
changed, please consider the modication on the required specication of Power cord and Air switch, according
to the specication manual provided by manufacturer.

Requirement for ground:

①

Air conditioner is the I class electric appliance, thus please do conduct reliable grounding measure.

②

The yellow-green two-color wiring of air conditioner is grounding wire and cannot be used for other

purposes. It cannot be cut off and be xed by screw, otherwise it would cause electric shock.

③

The user must offer the reliable grounding terminal. Please don’t connect the grounding wire to the

following places:

● Water pipe;

● Gas pipe;

● Blowing pipe;

● Other places that professional personnel consider them unreliable.

④

The power cable, communication wire connection between indoor and outdoor.

⑤

The section area of cables selected by users must not be smaller than the specications show diagram.

The signal wire between indoor and outdoor unit shall be installed in the shielded bushing.

FSKI-121B-EU

FSOI-121B

FSKI-181B

FSOI-181B

FSKI-241B

FSOI-241B

FSKI-301B

FSOI-301B

FSKI-361B

FSOI-361B

FSKI-451B

FSOI-451B

FSKI-361BFSOI-361B-3F

FSKI-451BFSOI-451B-3F

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8.7 Schematic Diagram of Unit Line Connection

+

1.Power cord 3×2.5 mm2 (H07RN-F) 2.Power cord 3×1.0 mm2 (H05VV-F)

3.Communication Cords

1.Power cord 3×4.0 mm

2

(H07RN-F) 2.Power cord 3×1.0 mm2 (H05VV-F)

3.Communication Cords

1.Power cord 3×4.0 mm

2

(H07RN-F) 2.Power cord 3×1.0 mm2 (H05VV-F)

3.Communication Cords

+

+
+

1.Power cord 3×4.0 mm2 (H07RN-F) 2.Power cord 3×1.0 mm2 (H05VV-F)

3.Communication Cords

FSKI-121B-EU

FSOI-121B

FSKI-361B

FSOI-361B

+

FSKI-451B

FSOI-451B

+

FSKI-181B

FSOI-181B

FSKI-241B

FSOI-241B

FSKI-301B

FSOI-301B

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61

+
+

1.Power cord 5×2.5mm2 (H07RN-F) 2.Power cord 3×1.0mm2 (H05VV-F)

3.Communication Cords

9. Test Operation

9.1 Prepare for test

● Do not turn on the power switch before all installation is nished.

● Connect wires correctly and rmly.

● Open the check valve.

● Remove all dust.

9.2 Testing

● Turn on the power switch and press ON/OFF button.

● Press MODE button select COOL, HEAT, FAN, etc to test whether it operates normally.

9.3 Emergency operation.

● When the batteries fail or when the remote controller is missing, operate as shown below.

● * On stopping you can press the AUTO button on cover NO.

, until it is in AUTO mode.

● The cover NO.

is the part of the panel. As the picture below:

● The air conditioner select from COOL, HEAT, DRY, FAN modes automatically.

● * On operating, press the AUTO button, the air conditioner will stop.

Note: The “TEST” button on the cover No.

is specially for testing the air conditioner. When pressing it, the

air conditioner will be forced to operate or stop. Do not press it when air conditioner is in normal operation.

FSKI-361B

FSOI-361B-3F

FSKI-451B

FSOI-451B-3F

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62

For the following items, take special care during construction and check after installation is nished.

Items to check If not properly done, what is likely to happen

Is the indoor unit xed rmly? The unit may drop, vibrate or make noise.

Is the gas leakage test nished? It may result in insufcient cooling.

Is the unit fully insulated? Condensate water may drip.

Does drainage ow smoothly? Condensate water may drip.

Does the power supply voltage correspond to that shown
on the nameplate?

The unit may malfunction or the components burn out.

Are wiring and piping correct? The unit may malfunction or the components burn out.

Is the unit safely grounded? Risk of electric leakage.

Is wiring size according to specications? The unit may malfunction or the components burn out.

Is something blocking the air outlet or intake of either the

indoor or outdoor unit?

It may result in insufcient cooling.

Have records of refrigerant piping length and additional

refrigerant change been made?

Volume of refrigerant change in the system is not clear.

Note to the installer:

● Be sure to instruct the customer how to operate the system and show him/her the attached operation
manual.

● Be sure the electric supply that user applies is beyond the bounds of tolerances (+/-10%, +/-1Hz).

● The ambient temperature should be at 5-40°C, and the humidity is 30%-95%.

● Transport/storage temperature should be at -25-55°C and for short period not exceeding 24h at up to
+70°C.

● The installation altitude is beyond the height of 1000m.

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63

10. Optimum Operation

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64

11. Care and Maintenance(It should be done by professionals)

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65

DC Inverter Cassette Type Air Conditioner Installation and Operation Manual

66

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67

Operate on unmentioned buttons would not impact on the normal use.

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68

12. Trouble Shooting

Warning:

● In case of something abnormal (such as bad smell), shut of the power switch immediately and contact

service center.

● Do not repair the air conditioner by yourself because wrong repair may cause re, please contact service

center to do it for you.

Check the items shown below before contact with service center.

symptom cause Corrective measures

The system does not operate at
all

Phase opposition or fuse broken Change phase or replace fuse

Power off It will restart when power is on

Loose plug Put the plug into place

Batteries of remote controlling fall Replace batteries

Out of the remote controlling range Keep the distance in 10mm

The system stops right after it
is started

Object at the air intake and air outlet
of the air conditioner

Remove them

Coo l i n g a n d h e a ti ng i s
malfunctioning

Object at the air intake and air outlet
of the air conditioner

Remove them

Wrong temperature setting

Refer to Temperature Setting and SAVE
Function Setting

Low fan speed

Ref e r t o F a n S peed Se tti n g a nd Q uiet
Function Setting

Air direction is not correct Refer to Swing Control Function

Doors or windows are open Close them

Direct sunshine Close the curtain or blinder

Too many people in the room

Change your air conditioner to a bigger one

or reduce other heating sources

Too many heating sources

Dirty air lter Clean it

Note: If trouble still exists after checking the above items, please contact service center.

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69

If your air-conditioning unit suffers from abnormal operation or failure, please first check the following

points before repair:

Failure Possible Reasons

The unit cannot be started.

● The power supply is not connected.

● Electrical leakage of air-conditioning unit causes tripping of

leakage switch.

● The voltage of electrical line is too low.

● The operating keys are locked.

● The control loop has failure.

The unit operates for a while and then

stops.

● There is obstacle in front of the condenser.

● The control loop is abnormal.

● Cooling operation is selected when the outdoor ambient

temperature is above 52

Poor cooling effect.

● The air lter is dirty or blocked.

● There is heat source or too many people inside the room.

● The door or window is open.

● There is obstacle at the air intake or outlet.

● The set temperature is too high thus cooling is hindered.

● There is refrigerant leakage.

● The performance of room temperature sensor becomes worse.

Poor heating effect

● The air lter is dirty or blocked.

● The door or window is not rmly closed.

● The set room temperature is too low thus heating is hindered.

● There is refrigerant leakage.

● The outdoor ambient temperature is lower than -7℃.

● Control line is abnormal.

The indoor fan does not start under the
heating mode.

● The installation site of the tube sensor is not proper.

● Tube sensor is not correctly plugged.

● The connecting line of the tube sensor is broken.

● The capacitance has leakage.

Note:

After carrying out the check of the above items and taking relevant measures to solve the problems found

but the air-conditioning unit still does not function well, please stop the operation of the unit immediately and

contact the local service agency .Only ask professional serviceman to check and repair the unit.

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70

The following are not troubles:

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13. Appendix

Air conditioner nominal working condition and working range:

Test condition

Indoor side Outdoor side

DB(℃) WB(℃) DB(℃) WB(℃)

Nominal cooling 27 19 35 24

Nominal heating 20

—

7 6

Rated cooling 32 23 48

—

Low temp cooling 21 15 18(-15)

—

Rated heating 27

—

24 18

Low temp heating 20

—

-7 -8

Note:

● The design of this unit conforms to the requirements of EN14511 standard.

● The air volume is measured at the relevant standard external static pressure.

● Cooling (heating) capacity stated above is measured under nominal working conditions corresponding to

standard external static pressure. The parameters are subject to change with the improvement of products, in
which case the values on nameplate shall prevail.

● In this table, the outdoor side DB temperature of low temp cooling include two values,the one in the
bracket is the working condition of the appliance with function of low temp cooling.

WARNING:

● This appliance is not intended for use by persons (including children) with reduced physical sensory or
capabilities, or leak of experience and knowledge, unless they have been given supervision on instruction

concerning use of appliance by a person responsible for their safety.

● Children should be supervised to ensure that they do not play with the appliance.

This product must not be disposed together with the

domestic waste. This product has to be disposed at an

authorized place for recycling of electrical and electronic
appliances.

66 129 911704