1 Summary and features - Ductless Air Conditioners
Contents
1. O Function manual and operation method of remote controller wee Function manual of remote controller This function manual is applicable to D C Variable Frequency Linge Wind Series GWHDI2A6ND31A 6 1 1 Temperature parameters Room set temperature Tet Room ambient temperature Tamb 6 1 2 Fundamental functions After powered on no matter when the compressor is2. a Exploded View of Outdoor unit 39 40 4 dL 32 3 18 19 16 17 15 14 13 12 DENAIN TIT AKI ATS NX KACO EA SSO AAAI AINA RS V N NCT AY xX We AN ra a CN aP LO lt Troubleshooting Common section Analysis in this section is used for Linge Wind D C Variable Frequency Series Before analysis you can diagnose according to the code displayed on indoor unit or indicator display on outdoor unit Refer to 9 2 Malfunction display section oak Measure the insulating resistance trip at once there is electrical leakage or short Breaker tripped circuit in the unit or fuse burnt out Insulation malfunction of line or componen Sone in the air conditioner Insulation breakdow When the unit is turned on the occurs after radiation which causes shor breaker will trip in a few minutes circuit or electricity leakage Measure insulating resistance or use one by on elimination method Malfunction of fuse Replace it No power
3. Malfunction display section Linge Wind D C Variable Frequency Series When malfunction or protection occurs in the air conditioner corresponding code will be displayed on the screen of the indoor unit and the indicator of outdoor unit will blink accordingly as well When protection or malfunction is eliminated display will be back to normal E4 Compressor discharge protection E5 Low voltage overcurrent protection E6 Communication malfunction Display code and Fl Indoor environmental sensor open or short circuit the malfunction is detected for 30s malfunction continuously description of F2 Indoor evaporator sensor open or short circuit the malfunction is detected for 30s continuously indoor unit F3 Outdoor environmental sensor open or short circuit the malfunction is detected for 30s continuously F4 Outdoor condenser sensor open or short circuit the malfunction is detected for 30s continuously F5 Outdoor discharge sensor open or short circuit after the compressor runs for 3 min the malfunction is detected for 3s continuously H1 Defrosting H3 Compressor overload protection H4 System malfunction i e overload protection H5 IPM module protection Mainboard Yellow light blinks 1 time Mainboard Yellow light blinks 2 times Defrosting display H1 Mainboard Yellow light blinks 3 times Compressor is running this is normal condition Antifreezing protection display of indoor unit Mainboa
4. S op oS 5 7 g A Ww is insufficient people go in and out frequently there is use appliance with high amount of heat heating unit in the room When unit is cooling or heating both compressor and outdoor fan don t run When unit is cooling or heating the compressor runs but outdoor fan doesn t run fan runs but compressor doesn t run When cooling or heating outdoor fan runs but Fan doesn t run when FAN mode 1S set Abnormal power supply of outdoor unit Damage of outdoor main control board Breakage of outdoor power module Improper setting of temperature Breakage of outdoor fan motor Wrong wire connection Breakage of outdoor main control board Breakage of outdoor fan capacitor Malfunction of compressor Poor contact of connection between the main control board and module Abnormal input of power module Abnormal output of power module Compressor temperature is too high Wrong wiring Damage of outdoor main control board Burn out or broken wire of indoor fan motor Wrong wiring Circuit break or damage of fan motor capacitor Check the circuit according to circuit diagram Replace the main control board Replace the power module Adjust the set temperature Replace the fan motor Wire according to the circuit diagram Replace the main control board Replace the fan capacitor Replace the compressor Re fasten the connection Check if
5. Outdoor fan stops Measure the voltage of outdoor fan connector Replace the power module Whether module type is correct Abnormal Normal Replace the module Measure the three phase with correct type resistance of compressor Normal l Abnormal Whether cylinder of Replace the compressor is stuck compressor Ifthe unit runs normally after connected Normal voltage Replace the fan motor Replace the mainboard of outdoor unit with the new compressor for trial run the cylinder of original compressor is stuck
6. 1 Summary and features Ait Kuimaine Th Fil silii aC U Do INVERTER ULTIMATE COOLING amp HEATING SOLUTION Krimaine x 3 Part name Air inlet Indoor Unit nA Front panel Guide louver Air outlet Receiving window LED board Wireless remote controll Outdoor Unit Air inlet EEN EEN SS ar eee Ta m N e _ _ SSS __ i m o Air outlet L ee O t UC TT WALA EAM UA acag wrapping tape Drainage hose Connecting pipe and connection wire 4 Overall and Installing Dimension Overall and Installing Dimension of Indoor Unit Left piping hole Right pipinghole Top view SS SS e aa E Unit mm Rear view Wall mounting plate MPA Overall and Installing Dimension of Outdoor Unit Ve te E A AA A A ee ee ee ee ee A aaa ANA Moo OEN SN ee A y N ws S i N A 1000000000000 ZNZ LY YT NNN E Unit mm an ge 60cm Goma E 60cm eS
7. C Adjusting range is 16 30 C In AUTO mode this button does not function 6 1 3 4 AUTO key When the unit is stop press AUTO key the unit will run under AUTO mode and the swing motor starts f When the unit is running press AUTO key the unit will be stopped 6 1 3 5 Timer control The unit is turned on or off according to the timer set by the remote controller 6 1 3 6 Sleep control When the air conditioner is in COOL or DRY mode after Sleep mode has been set properly the preset Tse will be increased by 1 C after the sleep program has run for 1 hour and T will be increased by another 1 C after 2 hours Tse has been increased by 2 C totally in two hours Then the unit will run at this set temperature and at the set speed Handling switch Set temp T Toat2 C n ar sr iar Tset1 C Ta 1h 2h Above 2h When the air conditioner is in HEAT mode after Sleep mode has been set properly the preset Tse will be decreased by 1 C after the sleep program has run for 1 hour and Tse will be decreased by another 1 C after 2 hours Tse has been increased by 2 C totally in two hours Then the unit will run at this set temperature and at the set speed oo o lh 2h Above 2h T set TiC Teetn2 C Set temp Tyo In AUTO or FAN mode the setting temp will not change 6 1 3 7 Indoor fan control Use the remote controller to set the indoor fan running at HIGH MED or LOW speed At this time the fan will run
8. Note when unsoldering the soldering point use wet cloth to completely wrap the big valve to Big Valves prevent valve body from being harmed by high ZL temperature ev Unscrew the two screws fixing the small valve unsolder the soldering point connecting the small valve and the fork type pipe and remove the small valve Figure 7 23 refer to Figure 7 23 Disassemble Compressor Unscrew the three nuts with washers at the foot of the compressor Unsolder the soldering points at the suction and the discharge pipes of the compressor carefully remove the pipes and take out the compressor refer to Figure 7 24 Figure 7 24 compressor bolt A l W J d o A am N sj am O Q O O re am 4 gt gt Q gt O re 2 Q gt L LLI Exploded View of Components and Parts of Indoor Unit 8 1 56 ee of ie 0 Ol l Ts O A aa 2
9. cooling and check the temperature of indoor heat exchanger when heating is too high protection will be activated Possible reasons Outdoor temperature is too high when cooling insufficient outdoor air circulation refrigerant flow malfunction please refer to the malfunction analysis in the previous section for handling method 293s 7 Module protection H5 Handling method Check if the voltage between power module P and N is too low and if the current is too high In normal condition voltage between P and N should be about 320V Abnormal heck power supply circuit of outdoor unit if PTC resistance Normal rectifying bridge reactor capacitance etc is ok Check if radiating paste is spread Reinstall power module and Temperature of power module is too high evenly or radiating sticker is stuck re spread radiating paste or which causes overheating protection well if screws of power module stick radiating sticker on the is tightened radiator of power module Protection is still displayed Foor radiation heat exchanger is di Confirm the setting status of outdoor unit cooling y Pee Normal Confirm if outdoor fan motor is running unplug the three connecting wires between U V W of compressor Outdoor fan runs Confirm if there is voltage output and balance of and power module Turn on the unit to see if outdoor voltage between any two phases of U V and W fan runs normally about 1 minute
10. started the time interval between two startups cannot be less than 3 minutes 6 1 2 1 COOL mode 6 1 2 1 1 The condition and process of cooling If Tamb2T se COOL mode will act the compressor and outdoor fan will run and the indoor fan will run at the set speed If Tamb lt T set 2 C the compressor will stop the outdoor fan will delay 30 seconds to stop and the indoor fan will run at the set speed If Tye 2 C lt Tamb lt T set the unit will keep running in the previous mode gt In this mode the reversal valve will not be powered on and the temperature setting range is 16 C 30 C gt The unit will adjust the running frequency of the compressor automatically according to the change of ambient temperature a Start cooling Tset I Original running state Tset 2 C j iStop cooling 23min Compressor Lisp Z 30S Outdoor fan Indoor fan Yi spe 6 1 2 1 2 Protection function Run Stop Antifreezing protection Under cooling and drying mode after the compressor run about 10mins when the pipe temp of the evaporator is to low the compressor will stop the outdoor fan will stop after 30s under cooling mode the indoor fan and swing motor will keep running in the original mode under drying mode the indoor fan will run at low fan speed the swing motor will run in the original mode When antifreezing protection is eliminated and the compressor has stopped for 3 minutes the unit
11. supply _ Check power supply circuit Air conditioner does not response after powered on The buzzer does not sound after the plug is connected an The power plug is not or poorly Check and plug well plug make connected loosen contact firm Controller fuse is burnt out Change control fuse the unit does not response after the remote controller is used to turn it on Secure the wire connection measure Loose or poor contact of transformer the output voltage of the transformer connection or transformer malfunction and replace it if the value is wrong The controller is broken Replace the controller Batteries of remote controller are low Change battery Malfunction of remote controller Loose or poor connection of receiving head Receiving head is broken Remote controller does not receive signal When powered First press the AUTO button of the manual switch If there is no response check according to the above method if it is normal after the button is on the buzzer will send out a sound unless it is broken pressed check if the installation location and wire connection of the receiving head are correct If correct replace the receiving head or the remote controller ie Improper setting of temperature Adjust the set temperature Whether cooling heating load Check the estimated load of cooling heating is proper Vacuumize after leakage detection Leaka
12. at high medium or low speed It can also be set to AUTO and the indoor fan will select fan speed HIGH MED or LOW automatically according to ambient temperature There are at least 3mins and 30s delay for fan speed shift 6 1 3 8 Power supply for outdoor unit The power supply for outdoor unit is turned on in AUTO COOL HEAT and DRY mode under turn on state The power supply for outdoor unit will delay 3 minutes to turn off under turn off state or in the FAN mode under turn on state 6 1 3 9 Swing control Use the SWING button of the wireless remote control to control SWING On and Off Swing will only act when indoor fan is running After power on the swing motor turns back to 0 position and closes the air outlet vent if it does not preset swing after the unit is turned on it will turn to the max air outlet D1 position then turn back to L position under COOL mode Under HEAT mode the guide louver stays at D1 when in swinging state it will swing between L1 and D1 position When the unit is turned off it will turn back to 0 position 0 Ll gt L 6 1 3 10 Buzzer control hen the unit is power on or receives remote control signal or the auto key be pressed the buzzer will give out a beep 6 1 3 11 Power off memory function Contents of memory Mode Swing Set fan speed Set temperature Timing etc Under turn on state when power off and power on the power supply for outdoor unit will be turn on after 3mins Under turn off state when
13. es 7 1 Disassembly procedures for indoor unit Operation procedures pictures Disassembling the front panel and electric box cover Unloose the clasps on both sides and lift the panel upward Unplug the two connecting terminals of the display and slide out the rear clasp from the groove to take off the front panel you can use panel support bar to support the panel Screw off the fixing screws of the electric box cover and open the electric box top cover to take it off a Panel panel sup Screw Flectric box As shown in Fig 7 1 port bar top cover Fig 7 1 Push the filter up to unloose the clasp to pull out the two filters As shown in Fig 7 2 Filters Fig 7 2 Disassembling the guide louver Bend the guide louver with strength and let out the rotating shaft from the groove to take off the guide louver As shown in Fig 7 3 Guide louver Fig 7 3 Operation procedures pictures Disassembling the front panel body Unclench the 3 screw covers and screw off the 3 pieces of screws that fix the panel body Unloose the front and rear clasps to take off the panel body As shown in Fig 7 4 screw screw covers Fig 7 4 Disassembling the electric box cover Unloose the 3 clasps to take off the electric box cover As shown in Fig 7 5 Disassembling the water tray assy Unloose the clasp on the left side and unplu
14. f axial flow tighten nut vane forcibly refer to Figure 7 19 axial flow vane Figure 7 19 Operating Procedures Photos Disassemble Motor and Motor Support _ re Motor Support Unscrew the four tapping screws fixing the motor and remove the motor Unscrew the two tapping tapping screws screws fixing the motor support and lift the motor support to remove tt refer to Figure 7 20 Figure 7 20 ERE Disassemble 4 Way Valve Screw off the holding nut of the 4 way valve coil and remove the coil Use wet cotton cloth to wrap 4 way valve the 4 way valve unsold the four soldering points connecting the 4 way valve and remove theS0 dering points 4 way valve Be quick during the unsoldering holding nut process pay attention to keep the wrapping cloth wet and do not allow the soldering flame to burn Figure 7 21 the compressor lead out cable Note only after discharging all freon refer to Figure 7 21 7 2 9 Disassemble Capillary Subassembly a Unsolder the soldering points connecting the capillary subassembly and the other pipelines and Capillary Subassembly remove the capillary subassembly refer to Figure 7 22 Figure 7 22 Operating Procedures Photos LAPT Disassemble Valves Unscrew the two screws fixing the big valve unsolder the soldering point between the big valve and the return air duct and remove the big Small Valves valve
15. g the connecting terminal of the stepping motor Carefully to remove the water tray assy because the drainage pipe clasp is placed here As shown in Fig7 6 7 7 water tray assy connecting terminal Operation procedures pictures I Disassembling the electric box Screw off the two pieces of screws that fix the electric box and unloose the clasp Pull out the tube sensor unloose the grounding nut and unplug the motor connecting terminal take out the electric box As shown in Fig 7 8 Screw off the screws that fix the evaporator one piece on the left and two pieces on the right As shown in Fig 7 9 7 10 Lift the left end of the evaporator slightly upward with your end and push it rearward to let out the side clasps of the evaporator from the groove Take out the evaporator carefully and pay attention to protecting the connecting pipe I Disassembling the motor Screw off the 3 pieces of screws that fix the motor clamp to take off the motor clamp As shown in Fig 7 11 Screw off the fixing nut that fixes the cross flow fan to pull out the motor from the cross flow fan As shown in Fig 7 12 Disassembling the cross flow fan Refer to the above steps to take out the cross flow fan from the base plate after taking out the motor 7 1 8 Disassembling the evaporator assy Tube sensor Grounding nut Motor connecting terminal Fig 7 8 Screws Screws Rig
16. ge or shortage of refrigerant and leakage repair Charge refrigerant according to specification Leakage occurs between high and Replace the compressor low pressure inside compressor Malfunction of l refrigerant flow Malfunction of four way valve Replace the four way valve Replace the capillary Partial blockage of capillary Use the method of observing condensation on the evaporator and pressure value of Blockage of cooling system high pressure manometer to see whether the system is blocked and carry out corresponding handling on the system Ensure that both thick pipe and thin pipe are insulated roor o insulation of conngoung well The exposed part of the connector and copper pipe pipe of indoor and outdoor unit Heat exchanger of outdoor unit Clean the dust accumulated on the is blocked m Air filters are blocked l Clean the filter Fan speed is set too slow Set the fan speed to high or medium Air circulation need o Or gt Replace i Fan speed turns low dama ged a aa Replace the motor motor Improper installation location Outdoor unit should be installed in a place with well ventilation Outdoor temperature is too high Flashing or awning can be installed appropriately If the max cooling capacity cannot be satisfied replacement of the air conditioner 1s recommended Indoor sealability is inadequate too many Maintain a certain degree of indoor sealability Try not to D oN 2 z 2g
17. ht motor clamp motor cross flow fan Fig 7 12 ima Disassembly Procedures for Outdoor Unit Operating Procedures Photos Disassemble Top Cover and Handle Use screwdriver to unscrew the screw at the handle and remove the handle Unscrew the three screws around the top cover and remove the top cover refer to Figure 7 13 Top Cover screw screw Handle Figure 7 13 UEA Disassemble Rear Grill Screw out the 4 self tapping screws on rear side plate and chassis of valve supporter and side plate of condenser can take off rear grill refer to Figure 7 14 Figure 7 14 Disassemble Components of Panel Screw out the 5 tapping screws on panel and chassis of valve supporter and side plate of condenser can take off components of panel refer to Figure 7 15 Figure 7 15 Operating Procedures Photos EP Disassemble electric install plate Screw out the 3 bolts that fixing on electric install plate plug out lead inserter of compressor and ma electric box cover bolts fan to take off electric install plate Figure 7 16 refer to Figure 7 16 7 17 ERA Disassemble Right Side Plate Baie Figure 7 17 Screw out the 5 bolts on rear side plate can take off right side plate refer to Figure 7 18 Figure 7 18 Disassemble axial flow vane Loosen tighten nut by spanner to take off nuts spring washer flat washer and take of
18. input is 320V If not replace the rectifier Replace the power module Cool the compressor for 30 min before running Wire according to the circuit diagram Replace the outdoor main control board Repair or change the fan motor Wire according to the circuit diagram Replace the indoor main control board Blockage or breakage of drainage hose Wrap of refrigerant pipe connector is not tight enough Fan of indoor unit contacts other parts There is foreign substance in indoor unit Compressor shakes too much ouch of pipeline of outdoor unit Touch of inner plates Water leakage Abnormal sound and shake Abnormal sound inside compressor Abnormal electromagnetic sound inside four way valve when heating Notes When repairing before the voltage between module PN is measured below 50V do not touch any terminal to avoid electric shock 1 Tighten connecting screws 2 Stick shock absorbing clay between plates Touch of outdoor unit fan blade with jouter case k Replace the drainage hose Re wrap and make it tight Adjust fan location Take out the foreign substance Adjust support washer of the compressor and tighten loose bolts Separate the touched pipeline Adjust louver position Replace compressor Short circuit inside electromagnetic valve Replace the electromagnetic valve 2 When replacing power module and rectifier be sure to spread the radiating paste evenly 92
19. mpressor is stopped by malfunction the indoor fan will blow at low fan speed for 60s and then stop 6 1 2 3 3 Protection Overcurrent protection If total current is high the compressor will run in limited or dropped frequency When total current go on rising over the stated value the compressor will stop the outdoor fan will delay 30 seconds to stop 6 1 2 4 FAN mode In this mode the indoor fan will run the fan in High Med Low and Auto mode The compressor outdoor fan and four way valve will stop gt In this mode the temperature setting range is 16 30 C gt The unit will adjust the running frequency of the compressor automatically according to the change of ambient temperature 6 1 2 5 AUTO mode In this mode the system selects COOL HEAT and FAN mode automatically according to the change of ambient temperature The protection function is the same with that of COOL HEAT mode gt The unit will adjust the running frequency of the compressor automatically according to the change of ambient temperature 6 1 3 Other control 6 1 3 1 ON OFF Each time the On Off button of the remote controller is pressed the On Off state will switch once 6 1 3 2 MODE selection Press the MODE button on the remote controller to select and display the following modes AUTO COOL DRY FAN and HEAT 6 1 3 3 TEMP setting button Each time TEMP or TEMP button is pressed the set temperature will be increased or decreased by 1
20. power off and power on the power supply for outdoor unit will be turn on immediately 6 1 3 12 Delay Protection of Compressor Under COOL DRY HEAT mode before each time the compressor starts there will be 3mins delay 6 1 4 Common protection function in each mode 6 1 4 1 Overload protection tube at cooling it detects the temp of outdoor heat exchanger at heating it detects the temp of indoor heat exchanger When Ttube is detected high the compressor will run in limited frequency When Ttube goes on rising over the stated value the compressor will stop under AUTO HEAT or HEAT mode indoor fan will blow 60s at low fan speed and then stop under other mode the indoor fan will run at set speed 6 1 4 2 Compressor discharge temperature protection When discharge temperature is too high to over the stated value the compressor will stop and When discharge temp resume normal and the compressor has stopped for 3 minutes the unit will resume its original operating status 6 1 4 3 Communication malfunction When not receiving correct signal for 3 minutes the unit has communication malfunction and the outdoor unit stops it is the same as normal stop when meeting the set temp 6 1 4 4 Module protection When module is in protection the compressor will stop after the compressor has stopped for 3 minutes it will resume to running During module protection period the indoor unit displays malfunction and the whole unit stops 7 Disassembly procedur
21. rd Yellow light blinks 4 times IPM module protection corresponds to H5 of indoor unit Mainboard Yellow light blinks 5 times Overcurrent protection corresponds to E5 of indoor unit Overload protection corresponds to H4 of indoor unit Mainboard Yellow light blinks 6 times Indicator display of outdoor unit Mainboard Yellow light blinks 7 times Discharge protection corresponds to E4 of indoor unit Mainboard Yellow light blinks 8 times Compressor overload protection corresponds to H3 of indoor unit Mainboard Red light blinks 1 time Limited frequency current Mainboard Red light blinks 2 times Dropped frequency Discharge Mainboard Red light blinks 3 times Limited frequency overload Mainboard Red light blinks 4 times Dropped frequency Antifreeze Protection Mainboard Red light blinks 5 times Malfunction of outdoor tube sensor Indicator display of outdoor unit Mainboard Red light blinks 6 times Malfunction of outdoor environmental sensor Mainboard Red light blinks 7 times Malfunction of outdoor discharge sensor Mainboard Red light blinks 8 times Starting temperature is reached This is normal condition and display of indoor unit is normal Note Malfunction display blind 0 5s stop 0 5s there is 2s interval between two malfunction displays Analysis or handling of some of the malfunction display l Compressor discharge protection E4 Possible reasons
22. shortage of refrigerant blockage of air filter poor ventilation or air flow short pass for condenser the system has noncondensing gas such as air water etc blockage of capillary assy including filter leakage inside four way valve causes incorrect operation malfunction of compressor malfunction of protection relay malfunction of discharge sensor outdoor temperature too high Handling method refer to the malfunction analysis in the above section Low voltage overcurrent protection E5 Possible reason Sudden drop of supply voltage Communication malfunction E6 Handling method Check if communication signal cable is connected reliably Sensor open or short circuit Fl F2 F3 F4 F5 Handling method Check whether sensor is normal connected with the corresponding position on the controller and if damage of lead wire is found Compressor overload protection H3 Possible reasons insufficient or too much refrigerant blockage of capillary and increase of suction temp improper running of compressor burning in or stuck of bearing damage of discharge valve malfunction of protector Handling method adjust refrigerant amount replace the capillary replace the compressor use universal meter to check if the contactor of compressor is fine when it is not overheated if not replace the protector System malfunction H4 i e overload protection When tube temperature Check the temperature of outdoor heat exchanger when
23. the original mode If Tamb2Tsett 5 C the compressor will stop the outdoor fan will delay 30sec to stop and the indoor fan will blow for 60sec at the original speed and then stop gt In this mode the temperature setting range is 16 C 30 C gt The air conditioner will adjust the running frequency of the compressor automatically according to the change of ambient temperature gt When the unit is turned off in HEAT mode or switched to other mode from HEAT mode the four way valve will be powered off 2min later after the compressor stops Stop heatin Tset 5 C ih Original running state Tset 2 C Start heating Tamb gt 3min4 Compressor Sys ale Ld 305 4 7 Outdoor fan ae V3 60S Ze ly 7 A A Indoor fan 2min Reversal valve Z Z 6 1 2 3 2 The condition and process of defrosting Run Stop When frost is detected in the condenser the system will enter into defrosting state When defrosting starts the compressor and indoor fan will stop and the outdoor fan and four way valve will delay 30 seconds to stop The compressor will start again after 30s and When the compressor has run for 8mins the compressor will stop After 30 seconds the four way valve opens and after another 60 seconds the compressor and outdoor fan resume running The indoor fan will delay 2 minutes to run at the latest and temperature on the display panel shows H1 Under heating mode when the co
24. will resume running in the original mode The period of antifreezing protection Compressor y worn VAIS LL Indoor fan VPP PE AA AISI SS Jo Overcurrent protection If total current is high the compressor will run in limited or dropped frequency When total current goes on rising over the stated value the compressor will stop the outdoor fan will delay 30 seconds to stop Outdoor fan 6 1 2 2 DRY mode 6 1 2 2 1 The condition and process of drying If Tamb gt T set DRY mode will act the indoor fan outdoor fan and compressor will run and indoor fan will run at low speed If Tyet 2 C lt Tamb lt T set the unit will keep running in the original mode If Tamb lt Tset 2 C the compressor will stop running the outdoor fan will delay 30 seconds to stop and the indoor fan will run at low speed gt In this mode the reversal valve will not be powered on and the temperature setting range is 16 C 30C gt The unit will adjust the running frequency of the compressor automatically according to the change of ambient temperature Dry mode will act 6 1 2 2 2 Protection Protection is the same with that in COOL fede 6 1 2 3 HEAT mode 6 1 2 3 1 The condition and process of heating If Tame lt Tset2 C HEAT mode will act the compressor outdoor fan and 4 way valve will run simultaneously the indoor fan will delay at most for 2min to run If Tsett2 C lt Tamb lt Tsett5 C the unit will keep running in
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