Impecca ISFW421824 Manual

Flex Series Outdoor UnitOwner's ManualCommercialAirConditionersModel: ISMO-4221Thank you for choosing our air conditioner, please read this O

Flex Series7 Allowable Length and Height Fall of the Refrigerant Pipe Table 7 Allowable Value Fitting Pipe Total length (actual length) of fitting pi

Flex Series 8 After the pipe is protected well enough, never bend it to form a small angle; otherwise it would crack or break. (3)Wrap the Pipe with T

Flex Series9 (2) Calculation of the Additional Refrigerant ChargeAdditional Refrigerant Charge=(ΣLength of Liquid Pipeφ0.375×54+ΣLength of Liquid Pipe

Flex Series 10 1) The mistake connecting line will result in malfunction. After the electrical wiring working, ensure the wirebetween t

Flex Series11 5 Troubleshooting 1) In the event of abnormal conditions (like, stinky smell), please shut off the main power supply immediately andt

Flex Series12 6 The conditions listed below are not classified into errors. Table 10 Conditions Causes The unit does not run When restart the unit soo

Flex Series13 running next operation Mode conflict COOL or HEAT mode can not be operated When the indoor operating mode conflicts with that of outdoor

Flex Series147 Troubleshooting The error code will be displayed on the wired controller and the main board of the outdoor unit The meaning of each err

Flex Series15 8 Maintenance 8.2 Drain Pipe Regularly check if the drain pipe is clogged in order to drain condensate smoothly. 8.3 Notice before Seaso

Before contacting customer support, please see the troubleshooting guide above. Visit our website to contact us, find answers to Frequently Asked Ques

Preface Impecca Flex System adopts the cutting-edge manufacturing technology and takes globalacknowledged, environmental-friendly R410A as

Split Air ConditionerModels: ISMI-W182ISMI-W242Thank you for choosing our product.For proper operation, please read and keep this manual carefully. If

This appliance is not intended for use by persons (including children) with reduced physical,sensoryor mental capabilities or lack of experience and k

Explanation of SymbolsIndicates a hazardous situation that, if not avoided, willresult in death or serious injury.Indicates a hazardous situation that

PrecautionsWARNINGDo not connect air conditioner to multi-purpose socket.This appliance can be used by children aged from 8 Operation and MaintenanceI

Do not block air outlet or air inlet. It may cause malfunction.remote controller may be broken.Ɣ Power cord is overheating or damaged.Ɣ There’s abnorm

Do install the circuit break. If not, it may cause malfunction. of at least 3mm in all poles should be connected in fixed wiring.magnet buckle and hea

Installation must be performed in accordance with the persons in order to avoid a hazard.must be properly grounding with specialized grounding device

The indoor unit should be installed close to the wall.Instructions for installation and use of this product are provided by the manufacturer.Precautio

6(Display content or position may be different from above graphics, please refer to actual products)Parts NameIndoor Unitair inletpanelaux.buttonhoriz

Contents 1 Safety Precautions... 1 2 Product Introduc

7Buttons on remote controllerIntroduction for icons on display screen125791110128643123456789101112ON/OFF buttonMODE buttonEXWWRQ)$1EXWWRQ but

8Ɣ:KHQVHOHFWLQJDXWRPRGHDLUFRQGLWLRQHUZLOORSHUDWHDXWRPDWLFDOO\DFFRUGLQJWRH[IDFWRU\VHWWLQJ6HWWHPSHUDWXUHFDQ¶WEHDGMXVWHGDQGZLOO

9Introduction for buttons on remote controller)$1EXWWRQ43UHVVLQJWKLVEXWWRQFDQVHWIDQVSHHGFLUFXODUO\DVDXWR$872ORZ PHGLXP( ),

10Press this button to set clock time. " " icon on remote controller will blink. Press RUEXWWRQZLWKLQVWRVHWFORFNWLPH(D

11TEMP button9Introduction for buttons on remote controller%\SUHVVLQJWKLVEXWWRQ\RXFDQVHHLQGRRUVHWWHPSHUDWXUHLQGRRUDPELHQWWHPSHUDWXUHRU

12Function introduction for combination buttonsChild lock function3UHVVDQGVLPXOWDQHRXVO\WRWXUQRQRUWXUQRIIFKLOGORFNIXQFWLRQ:KHQch

131.After putting through the power, press "ON/OFF" button on remote controller toturn on the air conditioner.2.Press "MODE" butto

14Emergency operationIf remote controller is lost or damaged, please use auxiliary button to turnon or turn off the air conditioner. The operation in

15Clean and Maintenance1234Open panelPull out the panel to a certain Ɣ8VHGXVWFDWFKHURUZDWHUWRWKHZDWHUEHORZć) to clean LWDQGWKHQ

16Clean and maintenance1. Check whether air inlets and air outlets are blocked.2. Check whether circuit break, plug and socket are in good condition.4

Flex series1 1 Safety PrecautionsThis is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messag

17Malfunction analysisGeneral phenomenon analysisPlease check below items before asking for maintenance. If the malfunction stillFDQ¶WEHHOLPLQDWHG

18Malfunction analysisƔ3RZHUIDLOXUH"Ɣ,VSOXJORRVH"Ɣ Circuit break trips off or fuse is burnt out?Ɣ:LULQJKDVPDOIXQFWLRQ"Ɣ8QLW

19Malfunction analysisPhenomenon Check items SolutionOdours are emittedƔ:KHWKHUWKHUH’s odour source, such as furniture and cigarette, etc.Ɣ(OL

20Malfunction analysisError codeE5U8H6C5F1F2TroubleshootingIt can be eliminated after restarting the unit. If not, please It can be eliminated after r

21Installation dimension diagramAt least 250cmAt least 15cmAt least 300cm6SDFHWRWKHÀRRUSpace to the ceilingSpace to the obstructionAt least 15cmAt

22Selection of installation locationBasic requirementInstalling the unit in the following pla-ces maycause malfunction. If it is un-avoidable, please

23Requirements for electric connectionSafety precautionGrounding requirement1. Must follow the electric safety regulations when installing the unit.ci

24Installation of indoor unitStep one: choosing installation locationStep two: install wall-mounting framerm it with the client.1. Hang the wall-mount

251. Aim the pipe joint at the correspondingbellmouth.2. Pretightening the union nut with hand.3. Adjust the torque force by referring to the followin

26nection pipe with insulating pipe, andinsulating pipe1. Connect the drain hose to the outlet pipe ofoutletpipedrain hosedrain hosetapeoutlet pipedra

Flex Series2 Impecca is not responsible of personal injury or equipment damage caused by improper insta llation and commission, unnecessa

274. Put wiring cover back and then tighten the screw.5. Close the panel.Installation of indoor unitNote:Ɣ All wires of indoor unit and outdoor unit s

28Installation of indoor unitStep eight: bind up pipe1. Bind up the connection pipe, power cord and drain hose with the band.indoor unitgaspipeindo

29Check after installationTest operationƔ&KHFNDFFRUGLQJWRWKHIROORZLQJUHTXLUHPHQWDIWHU¿QLVKLQJLQVWDOODWLRQItems to be checked Possible ma

301. Standard length of connection pipeƔPPP4. The additional refrigerant oil and refrigerant charging required after prolongingconnecti

31Additional refrigerant charging amount for R22, R407C, R410A and R134aDiameter of connection pipeLiquid pipe(mm) Gas pipe(mm)ĭĭRUĭĭRUĭ

32Pipe expanding methodNote:Improper pipe expanding is the main cause of refrigerant leakage. Please expandthe pipe according to the following steps:A

Wired Controller 1 Displaying PartFig1.1.1 Outline of wired controller1.1 LCD Display of Wired ControllerFig.1.1.2 LCD display33If the product you bou

1.2 Instruction to LCD DisplayTable 1.1No. Symbols Description1Swing function2Air exchange function (this function is yet unavailable for this unit).3

2 Buttons2.1 Layout of Buttons2.2 Functions of ButtonsTable 2.1No. Name Function1 Enter/Cancel Function selection and cancellation.2 Ÿķ .Running tempe

3 Operation Instructions3.1 On/OffPress On/Off to turn on the unit and turn it off by another press.Note: The state shown in Fig.3.1.1 indicates the “

Flex Series3 2.2 Combinations for outdoor and indoor units Wall MountedIndoor UnitWall MountedIndoor UnitCassettle TypeIndoor UnitFloor/ Ceiling Indoo

3.4 Fan SettingUnder the “On” state of the unit, press Fan and then fan speed of the indoor unit will changecircularly as shown in Fig.3.4.1.Low Middl

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 UnitTimer range: 0.5

3.6 Swing SettingSwing On: Press Function under on state of the unit to activate the swing function. In this case,Swing Off: When the Swing function

3.7 Sleep SettingSleep on: Press Function under the On state of the unit till the unit enters the Sleep settingSleep off: When the Sleep function is a

3.8 Turbo SettingTurbo function: The unit at the high fan speed can realize quick cooling or heating so that theroom temperature can quickly approach

3.9 E-heater SettingE-heater (auxiliary electric heating function): In the Heating mode, E-heater is allowed to beOnce the wired controller or the rem

3.10 Blow SettingBlow function: After the unit is turned off, the water in evaporator of indoor unit will beautomatically evaporated to avoid mildew.I

3.11 Other Functionsa. LockUpon startup of the unit without malfunction or under the “Off” state of the unit, press Ÿ and źatthe same time for 5s til

168 91073 452Fig.4.2Fig.4.2 shows the installation steps of the wired controller, but there are some issues that needyour attention.1) Prior to the in

and connection lines between the indoor and outdoor unit, with a minimum interval of 20cm,otherwise the communication of the unit will probably work a

Flex Series 2.4 The range of production working temperature Table 3 Cooling Working range Outdoor temperature 0~118℉ Heating Working range Outdoor t

Table 5.1 Meaning of Each ErrorErrorErrorCodeErrorErrorCodeReturn air temperature sensor open/short circuited F1 Drive board communication error P6ev

CUSTOMER SUPPORTBefore contacting customer support, please see the troubleshooting guide above. Visit our website to contact us, find answers to Frequ

© 2016 Impecca, a division of LT Inc., Wilkes Barre, PA.

Flex Series5 3.3 Piping Connection The maximum pipe length is shown in the following table. When the distance between units (piping length) is ou

Flex Series6 4.2 Installation of the Connection Pipe Connecting piping for indoor unit and outdoor unit are in manifold mode. (As shown below).