Owner's Manual Split Type Wall-mounted Air Conditioner Model: ISMO-1821 Thank you for choosing our product. For proper operation, please read and keep this manual carefully. If you have lost the Owner’s Manual, please contact the local agent or visit www.impecca.com for an electronic version. v. 1.
In line with the company’s policy of continual product improvement, the aesthetic and dimensional characteristics, technical data and accessories of this appliance may be changed without notice.
Explanation of Symbols Indicates a hazardous situation that, if not avoided, will result in death or serious injury. Indicates a hazardous situation that, if not avoided, could result in death or serious injury. Indicates a hazardous situation that, if not avoided, may result in minor or moderate injury. Indicates important but not hazard-related information, used to indicate risk of property damage. Indicates a hazard that would be assigned a signal word WARNING or CAUTION.
THE INSTRUCTIONS BEFORE USE GENERAL INFORMATION WARNING ★ When having a burning smell or ★ The power supply must adopt the smoke,please turn off the power supply and contact with the service center. special circuit that with air switch protection and assure it has enough capacity.The unit will be turned on or off according to your requirement automatically,please do not turn on or turn off the unit frequently,otherwise disadvantage effect may be caused to the unit.
NAME OF PARTS GENERAL INFORMATION WARNING Be sure to cut off the power supply before cleaning the air conditioner; otherwise electric shock might happen. Wetting of air conditioner may cause the risk of electric shock. Make sure not to wash your air conditioner in any case. Volatile liquids such as thinner or gasoline will cause damage to the appearance of air conditioner. (Only use soft dry cloth moist cloth clean the air conditioner cabinet).
ELECTRICAL CONNECTIONS INSTALLER 1. Remove the handle at the right side plate of the outdoor unit (one screw). 2. Remove the cable clamp, connect the power connection cable with the terminal at the row of connection and fix the connection. The fitting line distributing must be consistent with the indoor unit. terminal of line bank. Wiring should meet that of indoor unit. 3. Fix power connection wire by wire clamp. To unit A 4. Ensure wire has been fixed well. 5. Install the handle.
INSTALLING THE OUTDOOR UNIT INSTALLER Location Install the drain fitting and the drain hose (for model with heat pump only) Use bolts to secure the unit to a flat, solid floor. When mounting the unit on a wall or the roof, make sure the support is firmly secured so that it cannot move in the event of intense vibrations or a strong wind. Do not install the outdoor unit in pits or air vents Condensation is produced and flows from the outdoor unit when the appliance is operating in the heating mode.
MAINTENANCE INSTALLER Use suitable instruments for the refrigerant R410A. ● Do not use any other refrigerant than R410A. Do not use mineral oils to clean the unit. INSTALLATION DIMENSION DIAGRAM INSTALLER The installation must be done by trained and qualified service personnel with reliability according to this manual. Contact service center before installation to avoid the malfunction due to unprofessional installation.
CHECK AFTER INSTALLATION INSTALLER Check Items Problems Owing to Improper Installation Is the installation reliable? The unit may drop, vibrate or make noises Has the gas leakage been checked? May cause unsatisfactory cooling (heating) effect Is the thermal insulation of the unit sufficient? May cause condensation and water dropping Is the drainage smooth? May cause condensation and water dropping Does the power supply voltage accord with the rated voltage specified on the nameplate? The unit m
CUSTOMER SUPPORT Before contacting customer support, please see the troubleshooting guide above. Visit our website to contact us, find answers to Frequently Asked Questions, and for other resources which may include an updated version of this user's guide. WWW.IMPECCA.COM If you wish to contact us by phone, please be sure to have your model number and serial number ready and call us between 9:00am and 6:00pm ET, at +1 866-954-4440.
© 2016 Impecca, a division of LT Inc., Wilkes Barre, PA.
Flex Series R410A GMV Multi VRF Floor and Ceiling Type Indoor Unit (For North America) Owner's Manual Commercial Air Conditioners Models: ISMI-FC18 ISMI-FC24 Thank you for choosing Commercial Air Conditioners, please read this owner’s manual carefully before operation and retain it for future reference. v 1.
User Notice ◆ When installing, the entire capacity of the cooperating indoor unit should be not larger than 150% of outdoor unit, otherwise, it will cause the shortage of cooling (heating) capacity. ◆ The power supply of the entire unit must be the power supply of outdoor unit. And disconnect the main power of outdoor unit before cleaning. ◆ In order to start up the unit successfully, the main power switch should be opened 8 hours before the operation.
Contents 1 Safety Precautions ������������������������������������������������������������������������������������������ 1 2 Installation Precautions and Location Choosing ��������������������������������������������� 2 2.1 Installation Precautions ����������������������������������������������������������������������������������������� 2 2.2 Location Choosing ������������������������������������������������������������������������������������������������ 2 2.
Flex Series for North America 1 Safety Precautions Please read this manual carefully before using this unit. Operate it correctly according to the guide in this manual. Please pay special attention to the indicating meaning of these two marks: Warning! This mark means that the unit may cause property damage, personal injury or loss of life if the operation is incorrect. Caution! This mark means that the unit may cause minor or moderate property damage or personal injury.
Flex Series for North America 2 Installation Precautions and Location Choosing 2.1 Installation Precautions The installation of air conditioner must be conform to national and local safety laws. Installation quality will directly affect the normal use of air conditioner. Do not attempt to install the air conditioner by yourself. Please contact your dealer after buying this machine. Professional installation workers will provide installation and test services according to installation manual.
Flex Series for North America 3 Installation of Floor and Ceiling Type Indoor Unit 3.1 Space Dimension for Unit Installation >1500 The space around the unit is adequate for ventilation. (Refer to Fig.1) POWER RUN TIMER >600 >600 >1000 >200 >600 >1500 >2300 >600 >300 >300 Fig.1 3.2 Important Notice (1). The unit must be installed by the professional personnel according to this install instruction to ensure the well use.
Flex Series for North America (Refer to Fig.5). Installation paper plank Side panel fixing screw(M4) Fig.2 Fig.3 (3). Set the suspension bolt. (Use W3/8 or M10 size suspension bolts) ＊ Adjust the distance from the unit to the ceiling slab beforehand. (Refer to Fig.4) (4). Fix the hanger bracket to the suspension bolt. Warning! ＊ Make sure that extended suspension bolt from the ceiling stays inside the appointed position. Readjust the hanger bracket when it is out of the appointed position. (Refer to Fig.
Flex Series for North America Celling Hanger bracket 40 or less Hanger bracket setting bolt(M8) Suspension bolt Hanger bracket fixing bolt(M6) Hanger bracket Fig.4 Fig.5 Celling slab BOLT POSITION INWARD Hanger bracket Fig.6 Fig.7 Fig.8 Fig.9 When installing the indoor unit, you can refer the paper pattern for installation. Make sure that the drainage side must be 10mm lower than the other side in order to drain the condensate water H easily.
Flex Series for North America Model A B H C D 1220 225 700 1158 280 ISMI-FC18 ISMI-FC24 3.4 Electrical Wiring Caution: The power of every indoor unit should be connected in outdoor unit. ① .Open front panel. ② .Remove the electrical box cover. ③ .Route the power connection cord from the back of the indoor unit and pull it toward the front through the wiring hole upward. ④ .
Flex Series for North America INDOOR UNIT E XT6 G INDOOR UNIT D XT5 G G INDOOR UNIT B OUTDOOR UNIT INDOOR UNIT C XT4 XT3 G INDOOR UNIT A XT2 G L N POWER XT1 Caution! ① . The incorrect of wiring connection would lead malfunction of some of the electric parts. ② . Be sure to leave some space between the connecting end and the clamp end after the wiring is fixed ③ . The installing operation should comform to national wiring regulations. 3.
Flex Series for North America ＊ Either the right rear or right side of the unit is suitable for fixing the drainpipe ＊ The diameter of the drainpipe should be equal to or greater than that of the connecting pipe. ＊ Take the drainpipe as short as possible and slope downward at a gradient of at least 1/100 to prevent air pockets.(Refer to Fig.10) ＊ Use the attached drain hose ④ and clamp ⑤ . ＊ Insert the drain hose completely into the drain socket.
Flex Series for North America Pipe Flare Nut Pipe Spanner Nut-Required Torque Pipe Diameter (mm) Required Torque φ6.35 15--30 φ9.52 35-40 φ12 45-50 φ15.9 60-65 (1). Align the flared end of the copper tube with the threaded connector, and then hand-tighten the flared nut (2). Further tighten the flared nut with a torque wrench until the t rque wrench sounds a “crack”. (3). The bending of the pipe shall not be too small, otherwise the pipe may crack.
Flex Series for North America 4 Part Names of Floor and Ceiling Type Indoor Unit Air outlet Guide louver Front panel Air filter, purifier (in air inlet grille) Air inlet Connecting pipe Note: Different models of air conditioners as shown above have the same appearances.
Flex Series for North America 5 Working Temperature Range Working Temperature Range Indoor side state ℉（℃） Wet bulb Dry bulb temp. ℉（℃） temp. ℉（℃） Outdoor side state ℉（℃） Dry bulb temp. ℉（℃） Wet bulb temp. ℉（℃） Rated. Cooling 80.0(26.7) 67.0(19.4) 95.0(35.0) 75.0(23.9) Max. cooling 80.0(26.7) 67.0(19.4) 115.0(46.1) 75.0(23.9) Min. cooling 67.0(19.4) 57.0(13.9) 67.0(19.4) 57.0(13.9) Rated. Heating 70.0(21.1) 60.0(15.6) 47.0(8.3) 43.0(6.1) Max. heating 80.0(26.7) — 75.0(23.9) 65.
Flex Series for North America 6 Maintenance Method Warning! ① . Turn off the unit and cut off the power supply when cleaning the air conditioner, otherwise, electric shock may happen. ② . Do not let the air conditioner get wet, or it will cause electric shock. Ensure that the air conditioner will not be cleaned by water rinse under any circumstances. ③ . Volatile liquid like thinner or gasoline would damage the appearance of air conditioner.
Flex Series for North America 7 Operating Instructions ＊ The expected temperature should be set at a moderate level to avoid of unnecessary energy consumption. ＊ Airflow direction will be changed by adjusting the louvers and flaps as shown, accordingly well air condition the room temperature. ＊ Clean the air filter every week for higher efficiency by professional. ＊ Close the window and door while operating the unit for saving energy.
Flex Series for North America ＊ Check electrical system (voltage and frequency). Use the power supply indicated on the nameplate of the unit to operate the air conditioner and only fuses with specified capacity should be done by technicians. Do not use pieces of wire instead of fuse. ＊ If electric shock suddenly happens, turn off the unit. If the unit is not to be used for a long period, cut off the main power supply.
Flex Series for North America 8 Malfunction Analysis Warning! Repairing work should be done by Impecca technicians. For saving your time and spending, please check the following malfunction analysis before contacting customer service center. Malfunction Phenomena Malfunction Analysis After turning off the air conditioner, the unit could not restart immediately. The overload protection switch of the unit needs 3 mins before restarting. Odor gives out when the unit just turns on.
Flex Series for North America ＊ When there is water leakage from indoor unit. ＊ When the power cord is overheating. ＊ Odor gives out when the unit is running. 8.2 After-sales Service Please contact the dealer if the air conditioner has any quality problems. 8.3 CUSTOMER SUPPORT Before contacting customer support, please see the troubleshooting guide above.
© 2016 Impecca, a division of LT Inc., Wilkes Barre, PA.
Wired Controller IS-TT850 User's Manual Thank you for choosing Impecca Air Conditioners. Please read this owner’s manual carefully before operation and retain it for future reference.
User Notice Please carefully read this manual before installation and use of this product ƹ (QVXUH there is separate SRZHU VXSSO\ IRU HDFK LQGRRU XQLW ƹ Never install wired controller in a wet place or under direct sunlight. ƹ Shielded twisted pair line must be substituted as signal line for wired controller if the unit is installed in the place where there is electromagnetic interference. ƹ ƹ ƹ Make sure communication line is connected into correct port to avoid communication malfunction.
Contents 1 Display Section................................................................................................ 1 1.1 Controller's LCD ........................................................................................ 1 1.2 Instruction to LCD ....................................................................................... 2 2 Buttons ............................................................................................................ 3 2.1 Layout of Buttons ...................
Wired Controller IS-TT850 1 Display Section Fig1.1.1 Diagram of wired controller 1.1 LCD Display of Wired Controller Fig.1.1.
Wired Controller IS-TT850 1.2 Instruction to LCD Display Table 1.1 No. Symbols Description 1 Swing function 2 Air exchange function (this function is yet unavailable for this unit). 3 Sleep function (Only sleep 1). 4 Each kind of running mode of indoor unit (auto mode) 5 Cooling mode 6 Dry mode 7 Fan mode 8 Heating mode 9 Defrosting function for the outdoor unit. 10 Gate-control function (this function is yet unavailable for this unit). 11 Lock function.
Wired Controller IS-TT850 2 Buttons 2.1 Layout of Buttons 2.2 Functions of Buttons Table 2.1 No. Name 1 Enter/Cancel 2 Ÿ 6 ź 3 Fan 4 Mode 5 Function 7 Timer Timer setting. 8 On/Off Turn on/off the indoor unit. 4+2 Mode + Ÿ 3+6 )DQ ź 4+6 2+6 Mode ź Ÿ ź Function Function selection and cancellation. ķ Running temperature setting of the indoor unit, range:61°F-86° F(16°C-30°C). ĸ Timer setting, range:0.5(30 minutes) - 24 (hours). Setting of the low/middle/high/auto fan speed.
Wired Controller IS-TT850 3 Operation Instructions 3.1 On/Off Press On/Off button to toggle your A/C's power. Note: The state shown in Fig.3.1.1 indicates the “Off” state of the unit after power has been restored to the unit. The screen shown in Fig.3.1.2 indicates the “On” state of the unit after power on. Fig.3.1.1 “Off” State Fig.3.1.2 “On” State 3.2 Mode Setting Under ON state of the unit, press the Mode to switch the operation modes as the following sequence: Auto–Cooling–Dry–Fan–Heating. 3.
Wired Controller IS-TT850 3.4 Fan Setting While the unit is powered on, press Fan and then fan speed of the indoor unit will change circularly as shown in Fig.3.4.1. Low Middle High (Fig. 3.4.1) 3.5 Timer Settings While the unit is powered on, pressing the Timer button allows you to set the delay until the unit turns off. While the unit is powered off, pressing the Timer button allows you to set the dealy until the unit turns on.
Wired Controller IS-TT850 Timer on setting under the “Off” state of the unit is shown as Fig.3.5.2. Fig.3.5.2 Timer on Setting under the “Off” State of the Unit 7LPHU UDQJH KU (YHU\ SUHVV RI ŸRU ź ZLOO PDNH WKH VHW WLPH LQFUHDVHG RU GHFUHDVHG E\ 0.5hr. If either of them is pressed continuously, the set time will increase/ decrease by 0.5hr every 0.5s.
Wired Controller IS-TT850 3.6 Swing Setting Swing On: Press Function under on state of the unit to activate the swing function. In this case, ZLOO EOLQN $IWHU WKDW SUHVV (QWHU &DQFHO WR PDNH D FRQ¿UPDWLRQ Swing Off: When the Swing function is on, press Function to enter the Swing setting interface,with blinking. After that, press Enter/Cancel to cancel this function. Swing setting is shown as Fig.3.6.1. Fig.3.6.1 Swing Setting Notes: ķ Sleep, Turbo or Blow setting is the same as the Swing setting.
Wired Controller IS-TT850 3.7 Sleep Setting Sleep on: Press Function under the On state of the unit till the unit enters the Sleep setting VWDWH $IWHU WKDW SUHVV (QWHU &DQFHO WR FRQ¿UP WKLV VHWWLQJ Sleep off: When the Sleep function is activated, press Function to enter the Sleep setting status. After that, press Enter/Cancel to cancel this function. In the Cooling or Dry mode, the temperature will increase by 1°C after the unit runs under Sleep1 for 1hr and 1°C after another 1hr.
Wired Controller IS-TT850 3.8 Turbo Setting Turbo function: The unit at the high fan speed can realize quick cooling or heating so that the room temperature can quickly approach the setting value. In the Cooling or Heating mode, press Function till the unit enters the Turbo setting status and WKHQ SUHVV (QWHU &DQFHO WR FRQ¿UP WKH VHWWLQJ When the Turbo function is activated, press Function to enter the Turbo setting status and then press Enter/Cancel to cancel this function.
Wired Controller IS-TT850 3.9 E-heater Setting E-heater (auxiliary electric heating function): In the Heating mode, E-heater is allowed to be WXUQHG RQ IRU LPSURYHPHQW RI HI¿FLHQF\ Once the wired controller or the remote controller enters the Heating mode, this function will be turned on automatically. Press Function in the Heating mode to enter the E-heater setting interface and then press Enter/Cancel to cancel this function.
Wired Controller IS-TT850 3.10 Blow Setting Blow function: After the unit is turned off, the water in evaporator of indoor unit will be automatically evaporated to avoid mildew. In the Cooling or Dry mode, press Function till the unit enters the Blow setting status and then press Enter/Cancel to active this function. When the Blow function is activated, press Function to the Blow setting status and then press Enter/Cancel to cancel this function. Blow function setting is as shown in Fig.3.10.1 Fig.3.10.
Wired Controller IS-TT850 3.11 Other Functions a. Lock 8SRQ VWDUWXS RI WKH XQLW ZLWKRXW PDOIXQFWLRQ RU XQGHU WKH ³2II´ VWDWH RI WKH XQLW SUHVV Ÿ DQG ź at the same time for 5s till the wired controller enters the Lock function. In this case, LCD displays . After that, repress these two buttons at the same time for 5s to quit this function. Under the Lock state, any other button press won’t get any response. b. Memory 0HPRU\ VZLWFKRYHU 8QGHU WKH ³2II´ VWDWH RI WKH XQLW SUHVV 0RGH DQG Ÿ DW WKH VDPH WLPH I
Wired Controller IS-TT850 3 2 1 6 7 8 9 4 5 10 Fig.4.2 Fig.4.2 shows the installation steps of the wired controller, but there are some issues that need your attention. 1) Prior to the installation, please firstly cut off the power supply of the wire buried in the installation hole, that is, no operation is allowed with electricity during the whole installation.
Wired Controller IS-TT850 and connection lines between the indoor and outdoor unit, with a minimum interval of 20cm, otherwise the communication of the unit will probably work abnormally. ĸ I f the air conditioning unit is installed where is vulnerable to electromagnetic interference,then the signal and communication lines of the wired controller must be the shielding twisted pair lines. 4.
Wired Controller IS-TT850 Table 5.
Technical Support Before calling technical support, please see the troubleshooting guide above. You may also visit our website at www.impecca.com for answers to Frequently Asked Questions and to contact us. Email: support@impecca.com Phone: +1 866–954–4440 Web: www.impecca.
