Impecca ISMO-1821 Owner'S Manual Download Page 50

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Wired Controller

IS-TT850

Table 5.1 Meaning of Each Error

Error

Code

Error

Code

Return air temperature sensor open/
short circuited

Drive board communication error

evaporator temperature sensor open/
short circuited

Compressor overheating protection

Indoor unit liquid valve temperature
sensor open/short circuited

Indoor and outdoor units unmatched

Indoor gas valve temperature sensor
open/ short circuited

Communication line misconnected or
expansion valve error

IPM temperature sensor open/short
circuited

5XQQLQJPRGHFRQÀLFW

Outdoor ambient temperature sensor
open/ short circuited

Pump-down

Outdoor unit condenser mid-tube
temperature sensor open/short circuited

Jumper error

Discharge temperature sensor open/
short circuited

Forced defrosting

Indoor and outdoor communication error

Compressor startup failure

DC bus under-voltage protection

High discharge temperature protection

DC bus over-voltage protection

Overload protection

Compressor phase current sensing
circuit error

Whole unit over-current protection

Compressor demagnetization protection

Over phase current protection

PFC protection

Compressor desynchronizing

IPM Temperature Protection

IPM Current protection

Over-power protection

Compressor phase loss/reversal
protection

System charge shortage or blockage
protection

Frequency restricted/reduced with whole
unit current protection

Capacitor charging error

Frequency restricted/reduced with IPM
current protection

High pressure protection

Frequency restricted/reduced with high
discharge temperature

Low pressure protection

Frequency restricted/reduced with anti-
freezing protection

Compressor stalling

Frequency restricted/reduced with
overload protection

Over-speeding

Frequency restricted/reduced with IPM
temperature protection

Drive board temperature sensor error

Indoor unit full water error

AC contactor protection

Anti-freezing protection

Temperature drift protection

AC input voltage abnormal

Sensor connection protection

Whole unit current sensing circuit error

DC bus voltage drop error

4-way valve reversing error

Outdoor fan 1 error protection

Motor stalling

Outdoor fan 2 error protection

PG motor zero-crossing protection

Summary of Contents for ISMO-1821

Page 1: ...itioner 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 w...

Page 2: ...ries of this appliance may be changed without notice This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and...

Page 3: ...icates a hazard that would be assigned a signal word WARNING or CAUTION CONFORMITY AND RANGE GENERAL INFORMATION Please read this owner s manual carefully before operating the unit and keep it careful...

Page 4: ...turned on or off according to your requir ement automatically please do not turn on or turn off the unit freque ntly otherwise disadvantage effect may be caused to the unit Rated voltage of this air c...

Page 5: ...nce of air conditioner Only use soft dry cloth moist cloth clean the air conditioner cabinet The temperature of refrigerant circuit will be high please keep the interconnection cable away from the cop...

Page 6: ...rew The connection pipes and the connectiong wirings of the unit A and unit B must be corresponding to each other respective Note the above figures are only intended to be a simple diagram of the appl...

Page 7: ...mm 9 52 16 15 20 6 18K unit need to be installed the indoor unit Caution Installation Must be Performed in Accordance with the NEC CEC by Authorized Personnel Only conversion joint 18K MODE INDOOR UNI...

Page 8: ...manual Contact service center before installation to avoid the malfunction due to unprofessional installation When picking up and moving the units you must be guidedby trained and qualified person Do...

Page 9: ...its Have the length of refrigerating pipe and refrigerant charge amount been recorded Has the unit been safely grounded Problems Owing to Improper Installation The unit may drop vibrate or make noises...

Page 10: ...ources 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...

Page 11: ......

Page 12: ...2016 Impecca a division of LT Inc Wilkes Barre PA...

Page 13: ...ease read this owner s manual carefully before operation and retain it for future reference Commercial Air Conditioners Owner s Manual Flex Series R410A GMV Multi VRF Floor and Ceiling Type Indoor Uni...

Page 14: ...OOL mode DRY mode and FAN mode are compatible between each other The appliance shall not be installed in the laundry The appliance shall not be used by children without supervisor Power supply fluctua...

Page 15: ...Important Notice 3 3 3 Installation Description 3 3 4 Electrical Wiring 6 3 5 Drainpipe Installation 7 3 6 Install the Connection Pipes 8 4 Part Names of Floor and Ceiling Type Indoor Unit 10 5 Workin...

Page 16: ...will be shortened Do not damage wires or use the wires that are not recommended otherwise electric shock or fire may happen Please don t operate the unit with wet hands or electric shock may happen Do...

Page 17: ...sing Such a place where cool air can be distributed throughout the room Such a place where condensate water could be easily drained out Such a place that can handle the weight of indoor unit Such a pl...

Page 18: ...act 2 It should be done by professional personnel when the air conditioner unit is moved to other place 3 3 Installation Description Ceiling type Floor type These two types of units have similar insta...

Page 19: ...ap of indoor unit Never remove the cap 5 Lift the unit and slide forward unit in place Refer to Fig 7 6 Screw tightly both hanger bracket setting bolts M8 Refer to Fig 5 7 Screw tightly both hanger br...

Page 20: ...Fig 4 Fig 5 Hanger bracket setting bolt M8 Hanger bracket fixing bolt M6 Hanger bracket Fig 6 Fig 7 Fig 9 Fig 8 When installing the indoor unit you can refer the paper pattern for installation Make s...

Page 21: ...m of the appliance upward and then connect the power line and the communication line from the outdoor unit to the corresponding terminals N 1 2 3 and grounding terminal of the indoor unit Wiring shall...

Page 22: ...G G G G G Caution The incorrect of wiring connection would lead malfunction of some of the electric parts Be sure to leave some space between the connecting end and the clamp end after the wiring is...

Page 23: ...the screw head is less than 4mm from the hose Refer to Fig 11 Fig 12 Wrap the attached sealing pad 11 over the clamp and drain hose to insulate Refer to Fig 12 No folding of drain hose inside the ind...

Page 24: ...rap the thermally untreated pipe and connectors with sponge and then tighten the sponge with plastic tape Notes During the piping do not pull any connector forcefully to prevent the capillary and othe...

Page 25: ...Part Names of Floor and Ceiling Type Indoor Unit Connecting pipe Air outlet Air inlet Guide louver Air filter purifier in air inlet grille Front panel Note Different models of air conditioners as sho...

Page 26: ...b temp 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...

Page 27: ...nit Clean the air conditioner and the remote control with dry cloth or a vacuum cleaner If damp cloth is used remove moisture by using dry cloth afterward Caution Do not use benzine solvent gasoline t...

Page 28: ...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 Cover windows with a blind...

Page 29: ...y should be done by technicians Do not use pieces of wire instead of fuse Do not insert objects into the air inlet or outlet when the air conditioner is running as it may cause damage or personal inju...

Page 30: ...TIMER has been set in the wireless remote controller Notice All the operations above should be done by Impecca technicians The cooling heating effect of the air conditioner is not good Wether the temp...

Page 31: ...ee 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 IMPE...

Page 32: ...2016 Impecca a division of LT Inc Wilkes Barre PA...

Page 33: ...Thank you for choosing Impecca Air Conditioners Please read this owner s manual carefully before operation and retain it for future reference Wired Controller IS TT850 User s Manual...

Page 34: ...under direct sunlight 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 Make sure com...

Page 35: ...3 3 Temperature Setting 4 3 4 Fan Setting 5 3 5 Timer Setting 5 3 6 Swing Setting 7 3 7 Sleep Setting 8 3 8 Turbo Setting 9 3 9 E heater Setting 10 3 10 Blow Setting 11 3 11 Other Functions 12 4 Insta...

Page 36: ...1 1 Display Section Fig1 1 1 Diagram of wired controller 1 1 LCD Display of Wired Controller Fig 1 1 2 LCD display Wired Controller IS TT850...

Page 37: ...peration temperature setting On Off operation Mode setting are disabled by the remote monitoring system 13 Turbo Turbo function state 14 MEMORY Memory function The indoor unit resumes the original set...

Page 38: ...rn on off the indoor unit 4 2 Mode With the A C powered off press these two buttons together for 5 seconds to toggle the Memory function With Memory on the unit will return the the previous setting af...

Page 39: ...er ON state of the unit press the Mode to switch the operation modes as the following sequence Auto Cooling Dry Fan Heating 3 3 Temperature Setting 3UHVV RU WR LQFUHDVH GHFUHDVH WKH SUHVHW WHPSHUDWXUH...

Page 40: ...just delay until unit turns on and press Timer or Enter Cancel to confirm Timer off setting details With the unit turned on and no timer already programmed press the Timer button The display will show...

Page 41: ...2 Fig 3 5 2 Timer on Setting under the Off State of the Unit 7LPHU UDQJH KU YHU SUHVV RI RU ZLOO PDNH WKH VHW WLPH LQFUHDVHG RU GHFUHDVHG E 0 5hr If either of them is pressed continuously the set tim...

Page 42: ...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 Sleep Turbo...

Page 43: ...ss 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 After that the unit will run...

Page 44: ...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 t...

Page 45: ...ode 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 Press Function to enter...

Page 46: ...ess 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 1 Blow Setting Notes When the Blow function is acti...

Page 47: ...he wired controller after power failure will resume its original running state upon power recovery Memory contents On Off Mode set temperature set fan speed and Lock function 4 Installation and Disman...

Page 48: ...plate of the wired controller 6WLFN WKH VROHSODWH RI WKH ZLUHG FRQWUROOHU WR WKH ZDOO RYHU WKH LQVWDOODWLRQ KROH DQG WKHQ LW with screws M4X25 4 Insert the four core twisted pair line into the slot of...

Page 49: ...ion lines of the wired controller must be the shielding twisted pair lines 4 3 Dismantlement of the Wired Controller 1 3 4 2 5 Errors Display If there is an error occurring during the operation of the...

Page 50: ...nit over current protection E5 Compressor demagnetization protection HE Over phase current protection P5 PFC protection Hc Compressor desynchronizing H7 IPM Temperature Protection P8 IPM Current prote...

Page 51: ...chnical 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...

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