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508067-01

Issue 2016

Page 41 of 75

Indoor and Outdoor Unit Disassembly

NOTE: 

This section is for reference only. Actual unit 

appearance may vary.

Indoor Unit (All Models)

Front Panel

1.  Hold the front panel by the tabs on the both sides and 

lift it.

TAB

2. 

Push up the bottom of an air filter (step 1), and then 

pull it out downwards (step 2).

FILTER

 

3. 

Open the horizontal louver and push the hook towards 

left to open it.

Horizontal Louver

Hook

4. 

Bend  the  horizontal  louver  lightly  by  both  hands  to 

loosen the hooks, then remove the horizontal louver.

Hook

Содержание 4DHV Mini-Split Series

Страница 1: ...ll Mounted Indoor Units Inches MM 7 Dimensions Wall Mounted Indoor Units Wall Plates Inches MM 8 AHRI System Matches 9 Refrigeration Pipe Work 11 Outdoor Unit Connections and Line Set Usage 13 Power and Communication Wiring for Systems 22 Wiring Diagrams 24 Wireless Remote 28 Connection to Centralized Controller 31 Installation Requirements 34 Electronic Function 36 Adding Refrigerant Single Zone ...

Страница 2: ...TYPE D DUCTLESS UNIT TYPE HV HEAT PUMP MAJOR DESIGN SEQUENCE 1 1ST GENERATION COOLING CAPACITY S STANDARD EFFICIENCY OUTDOOR SINGLE ZONE HEAT PUMP UNITS D WH 1 09 S 4 1 P D WH 1 09 S 4 1 P VOLTAGE L 115V 1 PHASE 60HZ P 208 230 1 PHASE 60HZ MINOR DESIGN SEQUENCE 1 1ST REVISION REFRIGERANT TYPE 4 R410A COOLING EFFICIENCY S STANDARD EFFICIENCY SERIES TYPE D DUCTLESS SYSTEM UNIT TYPE WH WALL MOUNT MAJ...

Страница 3: ...08 230V 800 750 650 900 Outdoor Coil Number of rows 1 2 3 Fins per inch 21 18 Fin type Hydrophilic Aluminum Tube outside diameter in 1 4 5 16 Tube Type Rifled Copper Tubing Net face area sq ft 4 04 4 72 4 67 5 12 8 13 Application area sq ft 129 189 172 252 251 368 330 484 515 755 Design Pressure PSIG 550 340 Net Shipping Weight lbs 115V 67 72 71 77 208 230V 67 72 67 73 80 86 106 113 146 158 Electr...

Страница 4: ...5 2 50 35 2 50 36 116 72 Output W 20 30 60 Room Temp Range F Cooling 62 90 Heating 32 86 Air Volume CFM High Med Low 247 182 129 309 285 187 294 212 171 324 282 212 449 393 262 706 588 450 794 647 500 Sound Data dBA High Med Low 38 32 25 38 30 28 38 32 24 43 35 30 5 48 42 5 34 48 5 44 38 Connections in Liquid Gas O D Flare 1 4 3 8 1 4 1 2 1 4 1 2 3 8 5 8 Drain O D 1 0 69 Weight lbs Net Packaging 1...

Страница 5: ... FRONT VIEW SIDE VIEW SIDE VIEW 12 5 8 322 11 1 4 286 2 3 8 60 3 5 8 92 DRAIN HOLE bottom of unit 11 3 4 298 BOTTOM VIEW FRONT VIEW SIDE VIEW SIDE VIEW 4DHV1S12S 4DHV1S18S 2 3 8 60 3 4 19 14 3 8 365 12 1 4 311 13 3 8 340 2 3 8 60 3 3 8 86 21 7 8 556 1 2 13 20 1 4 514 31 1 2 800 31 1 2 815 13 1 8 333 2 3 4 70 Dimensions Outdoor Units Inches MM ...

Страница 6: ...IEW 1 2 13 14 1 4 362 2 3 4 70 33 5 8 854 21 1 4 540 33 1 4 845 7 7 8 200 1 3 8 35 15 381 13 1 8 333 2 3 8 60 3 5 8 92 13 3 4 349 15 7 8 403 TOP VIEW FRONT VIEW SIDE VIEW 16 3 8 416 15 1 4 387 2 7 8 73 1 25 26 1 2 673 37 1 4 946 3 3 8 86 31 7 8 810 17 7 8 454 DRAIN HOLE Bottom of unit 4DHV1S36S ...

Страница 7: ... 8 752 11 3 8 289 8 5 8 219 24 32 3 4 832 11 3 4 298 8 3 4 222 18 39 1 8 994 12 1 2 318 9 7 8 251 24 44 1118 13 1 4 337 10 1 4 260 36 46 3 4 1187 13 1 2 343 10 1 4 260 A B C TOP VIEW FRONT VIEW BOTTOM VIEW SIDE VIEW SIDE VIEW Dimensions Wall Mounted Indoor Units Inches MM ...

Страница 8: ... Rear Hole 2 1 2 in 64 mm diameter Left Rear Hole 2 1 2 in 64 mm diameter Wall Mount Unit Outline 1 3 4 44 1 3 4 44 16 3 4 425 9 1 8 232 5 127 31 5 8 803 7 1 2 191 11 3 4 298 1 3 4 44 DWH118S4 Left Rear Hole 2 1 2 in 64 mm diameter Right Rear Hole 2 1 2 in 64 mm diameter 20 3 8 518 5 5 8 143 Wall Mount Unit Outline 2 1 4 57 38 965 12 1 2 318 2 1 4 57 5 3 8 137 6 3 4 171 2 3 8 60 Dimensions Wall Mo...

Страница 9: ... 1P DWH109S4 1P 9000 18 11 9000 9 5 4DHV1S12S 1L DWH112S4 1L 12000 19 10 5 12000 9 5 4DHV1S12S 1P DWH112S4 1P 12000 19 11 12000 9 5 4DHV1S18S 1P DWH118S4 1P 18000 19 11 18000 10 4DHV1S24S 1P DWH124S4 1P 24000 17 9 5 24000 9 5 4DHV1S36S 1P DWH136S4 1P 36000 16 8 6 36000 8 5 Ratings are AHRI certified to AHRI Standard 210 240 2008 Cooling Ratings 80 F dry bulb 67 F wet bulb entering indoor coil air ...

Страница 10: ...254 Minimum 10 254 Minimum AIR FLO W AIR FLO W CLEARANCE NOTES FOR MULTIPLE UNITS If the height of the wall C is less than or equal to the height of the smallest unit A the distance from the unit to the wall B must be a minimum of 10 inches 254 mm If 1 2 the height of the unit A is less than the height of the wall C the distance from the unit to the wall B must be a minimum of 12 inches 305 mm If ...

Страница 11: ... mm Minimum 59 1499 mm Minimum SIDE VIEW Any Object Figure 3 Indoor Unit Clearances Inches mm Refrigeration Pipe Work LIQUID SIDE GAS SIDE HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR 2 WAY VALVE 3 WAY VALVE 4 WAY VALVE COOLING HEATING T2 Evaporator temp sensor T1 Room temp sensor ACCUMULATOR R O O D T U O R O O D N I CHECK VALVE Heating Model only CAPILIARY TUBE Figure 4 Single Zon...

Страница 12: ...it Outside Unit ABOVE Indoor Unit Figure 5 Single Zone Piping Limitations Each system size has a line set length and vertical elevation parameters System Size KBtu Line Set Diameters in Maximum Elevation Outdoor Unit BELOW Indoor Unit Feet Meters Maximum Elevation Outdoor Unit ABOVE Indoor Unit Feet Meters Maximum Line Set Length Feet Meters Additional Refrigerant for greater than 25 Foot Line Set...

Страница 13: ...52 3 8 Gas 9 52 3 8 12K and 18K Liquid 6 35 1 4 Liquid 6 35 1 4 Gas 12 7 1 2 Gas 12 7 1 2 24K Liquid 9 52 3 8 Liquid 9 52 3 8 Gas 15 9 5 8 Gas 15 9 5 8 36K Liquid 9 52 3 8 Liquid 9 52 3 8 Gas 15 9 5 8 Gas 15 9 5 8 Table 3 Pipe Diameter MM Inches Refrigerant pipe diameter is different according to indoor unit to be connected When using the extension pipe refer to Table 4 When refrigerant pipe diame...

Страница 14: ...7 71 10 43 7 90 10 92 8 27 65 9 65 6 82 10 14 7 17 10 64 7 52 11 02 7 79 75 9 57 6 88 10 18 7 32 10 63 7 64 11 13 8 00 85 9 77 7 12 10 22 7 44 10 78 7 85 11 23 8 18 95 9 89 6 94 10 35 7 25 10 91 7 65 11 31 7 93 105 9 29 6 74 9 78 7 09 10 26 7 44 10 74 7 79 110 8 59 6 70 9 09 7 09 9 64 7 52 9 99 7 79 115 8 08 6 87 8 55 7 27 8 87 7 54 9 29 7 90 122 7 48 6 66 7 78 6 92 8 16 7 26 8 55 7 61 HEATING CAP...

Страница 15: ...49 7 62 10 92 7 90 65 9 25 6 74 9 75 7 10 10 52 7 66 11 08 8 07 75 9 50 6 66 9 95 6 97 10 62 7 45 11 24 7 88 85 9 58 6 81 10 04 7 09 10 84 7 71 11 41 8 04 95 9 71 7 15 10 29 7 58 10 99 8 09 11 62 8 69 105 9 12 7 12 9 62 7 50 10 38 8 10 10 93 8 52 110 8 58 7 29 9 09 7 73 9 71 8 25 10 27 8 73 115 8 01 7 13 8 50 7 56 9 17 8 16 9 66 8 59 122 7 43 6 83 7 87 7 24 8 54 7 85 8 89 8 18 HEATING CAPACITY 09 ...

Страница 16: ...2 14 9 37 12 68 9 60 13 27 10 05 65 11 52 8 14 12 12 8 56 12 71 8 98 13 17 9 31 75 11 53 8 29 12 26 8 82 12 80 9 20 13 40 9 64 85 11 28 8 22 11 80 8 59 12 45 9 07 12 97 9 44 95 10 96 7 69 11 46 8 04 12 09 8 48 12 53 8 78 105 10 08 7 31 10 60 7 69 11 13 8 07 11 65 8 45 110 9 27 7 23 9 81 7 65 10 40 8 11 10 78 8 41 115 8 72 7 41 9 22 7 84 9 57 8 14 10 02 8 52 122 7 98 7 10 8 30 7 39 8 71 7 75 9 12 8...

Страница 17: ...12 35 8 98 13 07 9 50 65 11 06 8 05 11 66 8 49 12 59 9 17 13 32 9 70 75 11 20 7 85 11 81 8 28 12 69 8 90 13 57 9 51 85 11 40 8 06 11 96 8 45 12 99 9 18 13 82 9 77 95 11 60 9 05 12 16 9 49 13 29 10 36 14 06 10 97 105 10 84 9 00 11 29 9 37 12 20 10 13 12 98 10 77 110 9 25 7 87 9 65 8 20 10 54 8 96 11 15 9 48 115 8 56 7 61 8 92 7 94 9 75 8 68 10 37 9 23 122 7 92 7 21 8 25 7 51 9 02 8 20 9 54 8 68 HEA...

Страница 18: ... 18 06 13 09 19 22 13 93 65 16 13 11 60 17 27 12 42 18 04 12 97 19 09 13 72 75 16 21 11 80 17 06 12 43 18 01 13 12 18 96 13 81 85 16 00 11 82 16 85 12 45 17 79 13 15 18 83 13 91 95 15 81 12 49 16 93 13 38 17 78 14 04 18 71 14 78 105 15 36 12 44 16 17 13 09 16 97 13 75 17 96 14 55 110 14 35 11 91 15 28 12 68 16 04 13 31 16 89 14 01 115 13 34 12 01 14 21 12 79 14 84 13 36 15 79 14 21 122 12 42 11 55...

Страница 19: ...16 68 24 72 17 94 65 20 33 14 66 21 80 15 72 22 90 16 51 24 49 17 66 75 20 02 15 92 21 72 17 27 22 69 18 04 24 26 19 30 85 20 17 16 28 21 25 17 16 22 46 18 13 24 15 19 50 95 19 95 15 55 21 28 16 58 22 48 17 52 24 04 18 73 105 18 94 14 75 20 43 15 91 21 47 16 71 22 96 17 88 110 18 02 14 67 19 32 15 72 20 18 16 34 21 58 17 33 115 16 75 15 44 17 96 16 56 18 77 17 08 20 18 18 29 122 15 32 14 68 16 62 ...

Страница 20: ...5 28 34 32 33 29 73 32 81 30 47 34 97 32 32 75 30 67 28 48 31 90 29 24 32 70 30 49 35 08 32 07 85 30 14 27 66 30 80 28 53 31 57 28 99 35 31 32 42 95 29 02 26 72 29 78 27 92 30 53 28 11 36 52 33 35 105 25 83 23 85 26 87 24 35 27 54 25 15 34 07 28 73 110 24 33 22 02 25 08 23 08 26 26 23 83 30 70 26 02 115 23 30 21 44 24 43 22 29 25 04 22 66 29 36 24 22 122 23 05 20 03 23 77 21 10 24 36 22 05 28 94 2...

Страница 21: ...1 6 ft sec 3 0 ft sec 1 6 ft sec 4 9 ft sec 3 0 ft sec 3 0 ft sec 1 6 ft sec 3 0 ft sec 1 6 ft sec 1 6 ft sec 8 ft 9 in 6 ft 6 in 3 ft 3 in 0 ft 0 in 0 ft 0 in 3 ft 3 in 6 ft 6 in 9 ft 8 in 13 ft 1 in 19 ft 7 in DWH118S4 HEATING 16 ft 4 in 23 ft 0 in 3 2 ft sec 11 4 ft sec 9 8 ft sec 1 6 ft sec 0 3 ft sec 4 9 ft sec 1 6 ft sec 1 6 ft sec 6 6 ft sec 3 2 ft sec 3 2 ft sec 8 2 ft sec 8 ft 9 in 6 ft 6...

Страница 22: ...meplate for minimum circuit ampacity and maximum over current protection size All indoor units are powered by the outdoor unit Make all electrical power wiring connections at the outdoor unit Size outdoor unit power per local code and power requirements Connect wiring between indoor and outdoor terminals Refer to unit name plate for rated voltage Be sure to reattach all electrical box covers after...

Страница 23: ...ndoor to Outdoor Wiring Communication Power 1 2 3 and GND 24K 208 230VAC 4 16AWG 20A Outdoor to Main Power L1 L2 and GND 24K 208 230VAC 3 14AWG 18A Indoor to Outdoor Wiring Power only L1 L2 and GND 36K 208 230VAC 3 16AWG Indoor to Outdoor Wiring Communication only S1 S2 and GND 36K 208 230VAC 3 Stranded and shielded 24AWG Outdoor to Main Power L1 L2 and GND 36K 208 230VAC 3 Stranded and unshielded...

Страница 24: ... 2 BLACK W V RED BLUE U CN 1A CN 3CN 1CN 2CN 16 CN 50 CN 30 CN 29 CN 28 OUTDOOR CONTROL T5 TP T3 T4 Figure 8 9K 115VAC Outdoor Unit Wiring Diagram COMPRESSOR Y G DC FAN CN 7 3 B LUE BR OWN BLACK 3 2 L N R E D BLUE Y G 1 Y G AMBIENT TEMP SENSOR DIS C HAR GE T E MP S E NS OR CN 21 Y G Y G Y G CN4_1 CN4_2 CN4_3 CN4_4 REACTOR CAPACITOR BROWN BROWN BLACK BLACK BLACK W V RED BLUE U CN 1A CN 3 CN 1 CN 2 ...

Страница 25: ...UTDOOR COIL TEMP SENSOR RED BLACK WHTIE OUTDOOR CONTROL T5 T3 T4 Figure 10 09K 12K and 18K 208 230VAC Outdoor Unit Wiring Diagram 4 WAY DC FAN CN 414 3 PAN HEATER CN 19 CN 60 CRANKCASE HEATER CN 16 AMBIENT TEMP SENSOR DISCHARGE TEMP SENSOR CN 17 Y G BLUE BROWN 1 BLACK 3 3 2 L1L2 RED BLUE L2 1 Y G Y G CN 3 Y G Y G COMPRESSOR Y G U V W BLUE RED BLACK L1 L2 S White Red Blue CN 6 CN 7 CN 8 CN 2 CN 21 ...

Страница 26: ... 5 5 6 6 7 7 C C 9 9 A A B B D D E E F F 1 1 2 2 ON ON 0 0 8 8 4 4 1 1 2 2 3 3 5 5 6 6 7 7 C C 9 9 A A B B D D E E F F 1 1 2 2 ON ON ENC2 S1 ENC2 S1 0 F 0 F 0 F 0 F 0 F 0 F 0 F 0 F NETADDRESS NETADDRESS CODE CODE 0 15 0 15 16 31 16 31 32 47 32 47 48 63 48 63 FORSETTINGNETADDRESS FORSETTINGNETADDRESS CN501 CN403 X Y E To LVM Comm Bus YELLOW BROWN RED 5 5 Program mable Wired C ontroller OPTIONAL 4 N...

Страница 27: ... D D E E F F 1 1 2 2 ON ON 0 0 8 8 4 4 1 1 2 2 3 3 5 5 6 6 7 7 C C 9 9 A A B B D D E E F F 1 1 2 2 ON ON ENC2 S1 ENC2 S1 0 F 0 F 0 F 0 F 0 F 0 F 0 F 0 F NETADDRESS NETADDRESS CODE CODE 0 15 0 15 16 31 16 31 32 47 32 47 48 63 48 63 FOR SETTING NETADDRESS FOR SETTING NETADDRESS CN501 CN403 X Y E To LVM Comm Bus YELLOW BROWN RED 5 5 V1 2 2016 7 7 Programmable Wired Controller OPTIONAL 4 CN1 CN101 CN2...

Страница 28: ... modified setpoint will be set for five hours After seven total hours the indoor unit will turn off NOTE SLEEP mode is only available when the unit is in COOL HEAT or AUTO mode Turbo button Press to active turbo mode In both heating and cooling modes only the indoor fan will ramp up to reach the setpoint more quickly After reaching the setpoint or after 30 minutes the indoor unit will resume the p...

Страница 29: ...me mode Adjust the setpoint with up down arrow buttons No display when unit is in Fan mode Remote controller On Icon displays to indicate that the remote controller is on Transmitting display Icon blinks once when a signal is sent from the wireless remote controller Operation mode These icons show the current mode of operation Press the mode button to scroll through the operation modes Auto Cool D...

Страница 30: ...ct Auto Low Med or High fan speed NOTE Temperature set point is not displayed in Fan mode Dry Mode 1 Press the Power button An LED light on the indoor unit displays 2 Press the Mode button to select Dry 3 Adjust the temperature set point using up and down arrow buttons NOTE Fan speed is not adjustable in dry mode Using dry mode will over shoot the set point by 6 8 degrees There is no humidity sens...

Страница 31: ...ve dip switch 1 to the UP position and move the dial switch to the 3 position 0 8 4 1 2 3 5 6 7 C 9 A B D E F 1 2 ON 0 8 4 1 2 3 5 6 7 C 9 A B D E F 1 2 ON 0 8 4 1 2 3 5 6 7 C 9 A B D E F 1 2 ON 0 8 4 1 2 3 5 6 7 C 9 A B D E F 1 2 ON S1 S2 FOR SETTING ADDRESS RANGE ADDRESS FACTORY SETTING 0 F 0 F 0 F 0 F 0 15 16 31 32 47 48 63 DIP SWITCH HANDLES LEFT DOWN RIGHT DOWN LEFT DOWN RIGHT UP LEFT UP RIGH...

Страница 32: ...ot recommend as a main source for dehumidification Note this well over shoot the temperature by 6 8 degrees below what was set for dry mode NOTE Using this mode will over shoot the temp by 6 8 degrees below what was set for dry mode Dry Mode Operation Sequence When in dry mode operation the unit is actually in cooling mode with a low speed blower operation The compressor will stop when the room te...

Страница 33: ...insulation tape wrap the indoor refrigerant pipe connections that you left uncovered during the indoor unit installation process Ambient Temperature is Below 63 F 17 C You can t use the remote controller to turn on the COOL function when the ambient temperature is below 17 C In this instance you can use the MANUAL CONTROL button to test the COOL function Lift the front panel of the indoor unit and...

Страница 34: ...o way and three way valves and securely tighten the cap on the three way valve Adding Refrigerant if Pipe Length Exceeds Charge Less Pipe Length Connect the charge hose to the charging cylinder and open the two way and three way valves With the charge hose you disconnected from the vacuum pump connect it to the valve at the bottom of the cylinder If the refrigerant is R 410A place the cylinder bot...

Страница 35: ...heck if there are some leakage points 7 Fully close the handle Lo valve of the manifold valve and stop the operation of the vacuum pump Confirm that the gauge needle does not move approximately five minutes after turning off the vacuum pump 8 Turn the flare nut of the three way valves about 45 counterclockwise for six or seven seconds after the gas coming out then tighten the flare nut again Make ...

Страница 36: ...orking amp 1 5A Four way valve standard amp 1A Adding Refrigerant Single Zone Systems The outdoor unit is factory charged with refrigerant Calculate the additional refrigerant required according to the diameter and the length of the liquid pipe between the outdoor unit and indoor unit connections Be sure to add the proper amount of additional refrigerant Failure to do so may result in reduced perf...

Страница 37: ...ompressor discharge is getting higher the running frequency will be limited as below rules If 215 6 F 102 C T5 244 4 F 115 C decrease the frequency to the lower level every two minutes until to F1 If T5 244 4 F 115 C for ten seconds the compressor will stop and restart till T5 194 F 90 C Table 10 Main Protection If the indoor units cannot receive the feedback signal from the outdoor units for two ...

Страница 38: ... 155 162 80 67 26 67 19 44 103 104 123 138 135 129 132 140 162 173 90 73 32 22 22 78 112 113 139 152 149 138 145 154 180 189 Table 12 Cooling Fahrenheit Celsius F C ODT IDT 57 53 13 89 11 67 47 43 8 33 6 11 37 33 2 78 0 56 27 23 2 78 5 17 13 8 33 10 56 0 2 17 19 17 18 27 28 PSI 55 439 413 367 330 302 268 239 65 471 435 386 368 339 297 276 75 489 457 381 381 362 312 290 Table 13 Heating Fahrenheit ...

Страница 39: ...ture T4 Cooling 29 C 18 C to 29 C 17 C 84 2 F 64 4 F to 84 2 F 62 6 F Modify Rate 100 60 40 When there is more than one indoor unit Outdoor Temperature T4 Cooling 25 C 17 C 25 C 17 C 77 F 62 6 F 77 F 62 6 F Modify Rate 100 80 40 NOTE The final result is integer In low ambient cooling mode modify rate is fixed as 40 According to the final capacity request to confirm he operating frequency as follow...

Страница 40: ... 22 20 28 19 17 26 25 When low ambient cooling is valid 27 High Low 25 20 15 low ambient cooling Outdoor fan speed control logical low ambient cooling When T4 15 C 59 F and T3 30 C 86 F the unit will enter into low ambient cooling mode The outdoor fan will choose speed according to T3 When T3 38 C 100 4 F or when T4 20 C 68 F the outdoor fan will choose the speed according to T4 again 38 Exit low ...

Страница 41: ...nt Panel 1 Hold the front panel by the tabs on the both sides and lift it TAB 2 Push up the bottom of an air filter step 1 and then pull it out downwards step 2 FILTER 3 Open the horizontal louver and push the hook towards left to open it Horizontal Louver Hook 4 Bend the horizontal louver lightly by both hands to loosen the hooks then remove the horizontal louver Hook ...

Страница 42: ...ver and rotate it towards left then remove it 6 Disconnect the connector for display board 7 Slide the front panel side to side to release each axis 8 Open the screw cap and then remove the three screws 9 Release the hooks with hands 10 Release the five hooks in the back Hooks ...

Страница 43: ...the display board in the direction shown in the right picture Electrical Parts NOTE When handling electrical parts use anti static gloves NOTE Remove the front panel see Step 1 on page 41 before disassembling electrical parts 1 Cut the ribbon by a shear then pull out the coil temperature sensor T2 2 Remove one fixing screw of the electronic control box and two screws used for the ground connection...

Страница 44: ...onnectors of fan motor the step motor and the T2 sensor 6 Open the left side plate of electronic control box 7 Open the two clips on the front of the electric box 8 Open the upper cover plate of electronic control box 9 Remove 1 screw and open the 2 clips along the direction indicated in image below ...

Страница 45: ...or Evaporator NOTE Remove the front panel and electrical parts before disassembling evaporator see both Front Panel on page 41 and Electrical Parts on page 43 1 Disassemble the pip holder located at the rear of the unit Pipe Header 2 Remove the one screw on the evaporator located at the fixed plate Screw 3 Release the hook on the evaporator 4 Remove the one screw on the evaporator located oat the ...

Страница 46: ...ve the fixing board of the fan motor Screws 2 Remove the bearing sleeve 3 Remove the fixing screw 4 Pull out the fan motor and fan assembly from the side Fixing Screw Step Motor NOTE Remove the front panel and electrical parts before disassembling step motor see both Front Panel on page 41 and Electrical Parts on page 43 1 Remove the two screws then remove the stepping motor Stepping Motor Drain H...

Страница 47: ...8S 1 Turn off the air conditioner and the power breaker 2 Remove the screw of the big handle and then remove the handle 3 Remove the screws of the top cover and then remove top cover One of the screws is located underneath the big handle Top Cover 4 Remove the screws of the front panel and then remove the front panel Front Panel ...

Страница 48: ...r 6 Remove the screws on the rear coil guard and then remove the coil guard Front Cover 7 Remove the screws from the right panel and then remove panel Right Panel Panel Plate 4DHV1S24S 1 Turn off the air conditioner and the power breaker 2 Remove the screws that secure the handle and then remove the handle ...

Страница 49: ... front panel and then remove panel Front Panel 5 Remove the screw securing the service valves cover and then remove Service Valves Cover 6 Remove the screws securing the right panel cover and remove panel Front Cover Panel Plate 4DHV1S36S 1 Turn off the air conditioner and the power breaker 2 Remove the screws of the big handle and then remove the big handle 2 screws Big Handle ...

Страница 50: ...th the big handle Top Cover 4 Remove the screws of the front right panel and then remove the front right panel 2 screws Front Right Panel 5 Remove the screws of the front panel and then remove the front panel 9 screws Front Panel 6 Remove the screws of water collecting cover and then remove the water collecting cover 2 screws Water Collecting Cover ...

Страница 51: ...tors for the condenser coil temperature sensor T3 outdoor ambient temperature sensor T4 and discharge temperature sensor TP 4 Disconnect the expansion valve 5 Remove electronic control box Compressor T3 T4 and TP EEV Fan Motor 4 way valve HP only Electronic Components 4DHV1S18S NOTE Antistatic gloves must be worn when you disassemble the electronic box NOTE Remove the panel plate before disassembl...

Страница 52: ...ctronic Components 4DHV1S36S NOTE Antistatic gloves must be worn when you disassemble the electronic box NOTE Remove the panel plate before disassembling the fan 1 Remove the connector for the compressor 2 Pull out the two blue wires connected with the four way valve 3 Pull out connectors of the condenser coil temp sensor T3 outdoor ambient temp sensor T4 and discharge temp sensor TP 4 Disconnect ...

Страница 53: ... Fan Motor Connector 5 Remove the screws securing the fan motor and then remove fan assembly Fan Motor Fan Disassembly 4DHV1S18S NOTE Antistatic gloves must be worn when you disassemble the electronic box NOTE Remove the panel plate before disassembling the fan 1 Remove the nut security the fan to the fan motor 2 Remove the screws securing the cover of the electronic control box cover ...

Страница 54: ...ody Then remove fan motor Fan Motor Fan Disassembly 4DHV1S24S NOTE Antistatic gloves must be worn when you disassemble the electronic box NOTE Remove the panel plate before disassembling the fan 1 Remove the nut security the fan with a spanner Then remove the fan D Cut 2 Release the hooks and then open the electronic control box cover Hook ...

Страница 55: ... fan Fan Motor Fan Disassembly 4DHV1S36S NOTE Antistatic gloves must be worn when you disassemble the electronic box NOTE Remove the panel plate before disassembling the fan 1 Remove the nut security the fan with a spanner Then remove the fan D Cut 2 Release the hooks and then open the electronic control box cover Hook 3 Disconnect the connector for the fan motor from the electronic control board ...

Страница 56: ...compressor Sound Blanket Sound Blanket side Four Way Valve Recover refrigerant from the refrigerant circuit before remove the four way valve WARNING NOTE Remove the panel plate electrical parts and fan assembly before disassembling four way valve 1 Heat up the brazed parts and then detach the the four way valve and the pipe 2 Remove the four way valve assembly with pliers ...

Страница 57: ...he terminal cover and remove the cover Terminal Cover 2 Disconnect all connectors 3 Remove the hex nuts and washers which are located on the bottom of the plate which are securing the compressor 4 Heat up the brazed parts and then remove the discharge and suctions pipes 5 Lift the compressor from the base pan assembly with pliers ...

Страница 58: ...5 Evaporator coil temperature sensor T2 is in open circuit or has short circuited 67 7 times OFF EC Refrigerant leak detected 68 1 times ON F0 Overload current protection 67 2 times ON F1 Outdoor ambient temperature sensor T4 open circuit or short circuit 67 3 times ON F2 Condenser coil temperature sensor T3 is in open circuit or has short circuited 67 4 times ON F3 Compressor discharge temperatur...

Страница 59: ...ure T3 sensor Outdoor ambient temperature T4 sensor Discharge temperature T5 or TP sensor Measure the resistance value of each winding by using the multi meter Compressor Checking Measure the resistance value of each winding by using the tester Figure 26 Input Terminal Position Resistance Value Model ASN98D22UFZ ASK89D29UEZD ASN140D21UFZ ATF235D22UMT Blue Red 1 57 20 C 68 F 1 99 20 C 68 F 1 28 20 ...

Страница 60: ...sure the resistance between P and UVWN UVW and N Digital Tester Normal Resistance Value Digital Tester Normal Resistance Value Red Black Several M Red Black Several M P N U N U V V W W Red Normal P Voltage Normal Voltage for P and N 208 240V 1 phase In Standby Around 310VDC In Operation With passive PFC module With partial active PFC module With fully active PFC module 200VDC 310VDC 370VDC ...

Страница 61: ...ff the power supply for two minutes Turn unit back on Is it s ll displaying the error code YES The unit is opera ng normally Check connec on Replace the indoor outdoor main PCB If the EEPROM chip is welded on main PCB replace the main PCB directly Otherwise check if the EEPROM chip is plugged into main PCB correctly Correct connec on Remarks The loca on of the EEPROM chip on the indoor and outdoor...

Страница 62: ...ely with posi ve value Measure Vs Vs is the voltage between 2 and 3 Is it normal YES Replace the outdoor PCB Power on Check the reactor Is the error resolved Replace the indoor PCB Power on NO YES NO YES YES NO NO Replace the outdoor PCB Is it normal Check the indoor wiring connec ons Is the error resolved NO Replace the indoor PCB Does a problem remain The unit is opera ng normally Is it normal C...

Страница 63: ...to terminal 3 When AC is running normally the voltage will move alternately between 25V to 25V If the oudoor unit malfunctions the voltage will move alternately with positive values If indoor units has malfuction the voltage will be a variable Use amultimeter to test the resistance of the ractor which does not connect to capacitor The normal value should be around zero ohm If not the reactor is fa...

Страница 64: ...General Note When PCB does not receive zero crossing signal feedback for 4 minutes or the zero crossing signal time interval is abnormal Check the connec ons and power supply Is it normal NO YES Indoor main PCB is defec ve Replace indoor main PCB Correct the connec ons Turn on the unit when the power supply is good ...

Страница 65: ...500 RPM for an extended period of time the unit will stop and the LED will display the failure F5 YES NO YES YES Power off then restart the unit a er 2 minutes Does a problem remain NO Shut off the power supply rotate the fan by hand Check the wiring of fan motor Measure the voltage for the fan motor from the PCB Is it within normal parameters NO Replace the indoor outdoor PCB YES Replace the fan ...

Страница 66: ... 2 3 Black GND 0V 4 White Vcc 14 17 5V 5 Yellow Vsp 0 5 6V 6 Blue FG 14 17 5V 2 Outdoor DC Fan Motor control chip is in outdoor PCB Release the UVW connector Measure the resistance of U V U W V W If the resistance is not equal to each other the fan motor must has problems and need to be replaced otherwise the PCB must has problems and need to be replaced 3 Indoor AC Fan Motor Power on and set the ...

Страница 67: ...ion General Note Error displays if voltage is lower than 0 06V or higher than 4 94V NO YES NO YES Replace indoor or outdoor PCB Check the connec on between temperature sensor and PCB Is it properly wired Is it within acceptable parameters Measure the resistance value of the sensor Ensure proper connec ons Replace the Sensor NOTE See Table 2 on page 17 ...

Страница 68: ... higher than 50Hz does not keep continuous three minutes and this situation happens three times the display area will show EC and AC will turn off YES NO YES NO Check System for blockages and clear blockages if present Power off then restart the unit 2 minutes later Does a problem remain YES Are any leakages present Is there cool air blowing out from indoor air outlet NO Check system for leakages ...

Страница 69: ...Replace the outdoor PCB Is it in working order NO Replace the IPM board or replace the outdoor PCB Check the IPM Check the wiring between PCB and compressor Does an error exist YES Ensure proper connec ons or replace the wires and connectors Is it in working order Check the outdoor fan and the outdoor unit ven la on Please refer to the solu on of the ĀFan Speed is Out of Controlāmalfunc on Are the...

Страница 70: ...O YES NO YES Replace the reactor Check the power supply Is it in working order Turn off the unit Are they in working order Check the connec ons and wires Ensure proper connec ons or replace the wires While the unit is in standby is the voltage between P and N is around DC 310V 340V or 380V When start up the unit is it in 220V 400V Power on and measure the voltage between P and N Replace the IPM bo...

Страница 71: ...odule Diagnosis and Solution General Note If the temperature of IPM module is higher than setting value the LED displays this failure code NO Tighten the screws and apply silicon grease Check the fastening screws on the PCB and IPM radiator Are they fixed tightly YES Replace the outdoor control PCB ...

Страница 72: ...detection and so on NO NO YES NO YES NO YES Replace the outdoor PCB Check the IPM Check the compressor resistance values Check the wiring between the PCB and compressor Is it improperly wired Ensure proper connec ons or replace the wires and connectors Is it func oning properly Replace the IPM board or replace the outdoor PCB Is it func oning properly Check the outdoor fan and the outdoor unit ven...

Страница 73: ...72 4 78 1 25423 244 4 118 0 37956 30 2 1 37 1988 102 2 39 5 39689 174 2 79 1 2133 246 2 119 0 36954 32 0 35 2024 104 40 5 17519 176 80 1 17393 248 120 0 35982 33 8 1 33 3269 105 8 41 4 96392 177 8 81 1 13604 249 8 121 0 35042 35 6 2 31 5635 107 6 42 4 76253 179 6 82 1 09958 251 6 122 0 3413 37 4 3 29 9058 109 4 43 4 5705 181 4 83 1 06448 253 4 123 0 33246 39 2 4 28 3459 111 2 44 4 38736 183 2 84 1...

Страница 74: ... 2 357 26 6 3 211 4 98 6 37 32 94 170 6 77 7 566 242 6 117 2 294 28 4 2 200 7 100 4 38 31 62 172 4 78 7 321 244 4 118 2 233 30 2 1 190 5 102 2 39 30 36 174 2 79 7 086 246 2 119 2 174 32 0 180 9 104 40 29 15 176 80 6 859 248 120 2 117 33 8 1 171 9 105 8 41 28 177 8 81 6 641 249 8 121 2 061 35 6 2 163 3 107 6 42 26 9 179 6 82 6 43 251 6 122 2 007 37 4 3 155 2 109 4 43 25 86 181 4 83 6 228 253 4 123 ...

Страница 75: ...23 89 85 29 44 95 35 105 40 56 115 46 11 120 48 89 PSI 70 59 93 94 106 116 119 113 117 125 147 154 PSI 75 63 97 99 115 125 124 120 126 132 155 162 PSI 80 67 103 104 123 138 135 129 132 140 162 173 PSI 90 73 112 113 139 152 149 138 145 154 180 189 F C IDT ODT 0 17 5 15 15 9 44 45 7 22 75 23 89 85 29 44 95 35 105 40 56 115 46 11 120 48 89 MPA 70 59 0 64 0 65 0 73 0 8 0 82 0 78 0 81 0 86 1 01 1 06 MP...

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