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SERVICE MANUAL
Room Air Conditioner
Multi Split Type Indoor units
Light Commercial Series
NOTE:
Before servicing the unit, please read this at first.
Always contact with your service center if meet problem.
FSKMIF-71AE2-EU
FSKMIF-91AE2-EU
FSKIF-121AE2-EU
FSKMI-181AE2-EU
FSLMIF-71AE2
FSLMIF-91AE2
FSLIF-121AE2
FSLMI-180AE2
FSFMIF-70AE2
FSFMIF-90AE2
FSFIF-121AE2
FSFMIF-180AE2
FI_SM_MULTI LCAC INDOOR UNITS_161206
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Summary of Contents for Fisher FSKMIF-71AE2-EU
- Page 1 SERVICE MANUAL Room Air Conditioner Multi Split Type Indoor units Light Commercial Series FSKMIF-71AE2-EU FSKMIF-91AE2-EU FSKIF-121AE2-EU FSKMI-181AE2-EU FSLMIF-71AE2 FSLMIF-91AE2 FSLIF-121AE2 FSLMI-180AE2 FSFMIF-70AE2 FSFMIF-90AE2 FSFIF-121AE2 FSFMIF-180AE2 NOTE: Before servicing the unit, please read this at first. Always contact with your service center if meet problem.
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Page 2: Table Of Contents
CONTENTS 1. General information of Indoor Units ......1 2. Features ................2 3. Dimensions ..............8 4. Service Space (unit: mm) ..........11 5. Wiring diagram ..............13 6. Static Pressure (Duct) ............ 16 ... - Page 3 ※The specifications, designs, and information in this book are subject to change without notice for product improvement.
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Page 4: General Information Of Indoor Units
General information of Indoor Units Four-way cassette (compact) Duct Console Model Four-way cassette Duct Console (compact) FSKMIF-71AE2-EU FSLMIF-71AE2 FSFMIF-70AE2 FSLMIF-91AE2 FSKMIF-91AE2-EU FSFMIF-90AE2 FSKIF-121AE2-EU FSFIF-121AE2 FSLIF-121AE2 FSKMI-181AE2-EU FSFMIF-180AE2 FSLMI-180AE2... -
Page 5: Features
2. Features 2.1 Four-way cassette type(compact) ⑴ New panel 360°surrounding air outlet design, affords comfortable feeling ⑵ Compact design The body size is 570×260×570mm, it’s just smaller than the ceiling board, so it’s very easy for installation and will not damage the decoration. The panel size is 647×50×647mm. ... - Page 6 ⑷ Fresh air intake function: Fresh air fulfills air quality more healthy and comfortable. Fresh Dimension:Φ75mm ⑸ Air passage function Reserves the space for air outlet from the side of indoor unit; It’s avail ed to connect air duct from the two sides to the nearby small rooms.
- Page 7 2.2 Duct ⑴ Installation accessories: (Optional) Front Board, Canvas Air Passage, Filter, Panel, for easy installation Filter Panel Front Board ⑵ Easy Installation: Two air inlet styles (Bottom side or Rear side) Air inlet from rear is standard for all capacity; air inlet from bottom is optional. ...
- Page 8 ⑷ Easy maintenance Clean the filter (Optional, standard product without filter) It is easy to draw out the filter from the indoor unit for cleaning, even the filter is installed in rear side or bottom side. Replace the motor or centrifugal fan Remove the ventilated panel firstly.
- Page 9 ⑹ Built-in drain pump (Optional): Built-in drain pump can lift the water to 750mm upmost. It’s convenient to install drainage piping under most space condition. ⑺ Built-in display board The standard indoor unit can be controlled by wired controller. ...
- Page 10 2.3 Console (1) Consumes up to 30% less energy than non-inverter units ——DC inverter compressor ——indoor fan motor adopts DC motor (2) Achieves set temperature more quickly ——air supplying from top and bottom or from top only ——air inlet from four directions (3) Compact unit body, space saving ——this unit body is very thin and harmonious with room.
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Page 11: Dimensions
Dimensions 3.1 Four-way cassette type (compact): Drain hole Gas side ( for Service ) Liquid side Body 4-install hanger 150 Distribution duct E-parts box 4-Screw hole (for install panel) Drain pipe Fresh air intake Wiring connection port Panel... - Page 12 3.2 Duct air inlet from rear side Air filter ( optional ) 4-install hanger Liquid side 25 Drain pipe Gas side 25 Drain pipe Test mouth & Test cover 25 Drain connecting pipe ( for pump ) Fresh air intake Electric control box Air filter ( optional ) air inlet from bottom side...
- Page 13 3.3 Console Hanging arm 16 Drain pipe...
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Page 14: Service Space (Unit: Mm)
Service Space (unit: mm) 4.1 Four-way cassette (compact) 4.2 Duct Ensure enough space required for installation and maintenance . All the indoor units reserve the hole to joint the fresh air pipe. The hole size as following:... - Page 15 4.3 Console 4.4 Super-Slim Cassette Type >1000m m >1000mm...
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Page 16: Wiring Diagram
Wiring diagram FSKMIF-71AE2-EU, FSKMIF-91AE2-EU FSKIF-121AE2-EU, FSKMI-181AE2-EU... - Page 17 FSLMIF-71AE2, FSLMIF-91AE2, FSLIF-121AE2 FSLMI-180AE2...
- Page 18 FSFMIF-70AE2 , FSFMIF-90AE2 , FSFMIF-180AE2 FSFIF-121AE2...
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Page 19: Static Pressure (Duct)
Static Pressure (Duct) FSLMIF-71AE2, FSLMIF-91AE2... - Page 20 FSLIF-121AE2 FSLMI-180AE2...
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Page 21: Operation Temperature Range
Operation temperature range Temperature Cooling operation Heating operation Drying operation Mode Room temperature 17℃～32℃ 0℃～30℃ 17℃～32℃ 0℃～50℃ -15℃～24℃ 0℃～50℃ Outdoor temperature -15℃～50℃ CAUTION: 1. If the air conditioner is used beyond the above conditions, certain safety protection features may come into operation and cause the unit to operate abnormally. 2. -
Page 22: Electronic Function
Electronic function 8.1Abbreviation T1: Indoor room temperature T2: Indoor evaporator temperature TS: Setting temperature through the remote controller 8.2 Icon explanation on indoor display board 8.2.1 Four-way cassette (compact) 8.2.2 Duct PRE-DEF indicator(cooling and heating type) or fan only indicator(cooling only type) Alarm indicator Timer indicator Infrared signal receiver... - Page 23 8.3Main Protection 8.3.1 Three minutes delay at restart for compressor. 8.3.2 Sensor protection at open circuit and breaking disconnection. 8.3.3 Indoor fan delayed open function ----When system starts up, the louver will be active immediately, and the indoor fan will open after certain time.
- Page 24 For other models: T 1 - 2 4 ( H - L ) * 0 . 7 5 + L ( H - L ) * 0 . 5 + L ( H - L ) * 0 . 2 5 + L 8.4.2 Cooling mode 8.4.2.1 Outdoor fan running rules While A,B,C…means different fan speed of outdoor unit.
- Page 25 8.4.2.2 Indoor fan running rules FSLMI-180AE2 Indoor fan keeps running, fan speed can be set in high/mid/low/ Auto by using a remote controller: Auto fan in cooling mode acts as follow: High Medium For other models: In cooling mode, indoor fan runs all the time and the speed can be selected as high, medium, low and auto. When the compressor is running, the indoor fan is controlled as below: Setting fan T1-Td ℃(°F)
- Page 26 8.4.2.3 Evaporator low temperature T2 protection :When T2<4 ℃ , the indoor has no capacity demand FSFMIF-70AE2 FSLMI-180AE2 and resume till T2>8℃ For other models:When T2<4℃ for 250s or T2<0℃ , the indoor has no capacity demand and resume till T2>8℃...
- Page 27 8.4.4.2 Indoor fan running rules FSLMI-180AE2 Indoor Fan can be set at HIGH/MED/LOW/AUTO by using a remote controller, but Anti-cold wind function prevails. Auto wind in heating mode T1-Ts Medium High For other models: In heating mode, indoor fan can be selected as high, medium, low and auto. The anti-cold- wind function has the priority.
- Page 28 8.4.4.3 High evaporator coil temp.T2 protection: If T2>63℃, the indoor unit has no capacity demand and resume till 48℃. 8.4.4.4 Prevent Over-Heating In heating mode, when the indoor unit has no capaci increased, the Indoor fan will run in super breeze. (Anti-cold wind function has the priority) 8.4.4.5 Defrosting mode：...
- Page 29 8.4.5 Auto-mode This mode can be chosen by remote controller and the setting temperature can be changed between 17~30℃. In auto mode, the machine will choose cooling, heating or fan-only mode according to the difference between T1 and TS. For FSFMIF-70AE2 FSLMI-180AE2 T1-TS Running mode T1-TS＞1℃...
- Page 30 cooling units can not quit forced cooling mode until the master forced cooling unit quit, and turn to cooling mode at low speed with 24 setting temperature. ℃ 7.4.6.5 The slave forced cooling units will not be controlled by other signals. 8.4.7 Timer Function 8.4.7.1 Timing range is 24 hours.
- Page 31 If the memorization condition is forced cooling mode, the unit will run in cooling mode for 30 minutes and turn to auto mode as 24℃ setting temp. If AC is off before power off and AC is required to start up now, the compressor will have 1 minute delay when power on.
- Page 32 Cooling mode Heating Mode Cooling mode Heating Mode No: No mode conflict; Yes: Mode conflict (2) Unit action In case of one Indoor unit working in cooling mode or fan mode, and another indoor unit is set to heating mode, the indoor unit working in cooling mode or fan mode will change to off.