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- HMC030KD1
- Service Manual
ICP HMC030KD1 Service Manual
Summary of HMC030KD1
Page 1
Deluxe high wall mini split service manual model : hmc030kd1 hmh030kd1 caution - before servicing the unit, read the "safety precautions" in this manual. - only for authorized service personnel. International comfort products.
Page 2: Contents
- 2 - contents functions .................................................................................................................................3 product specifications ..........................................................................................................5 dimensions .....
Page 3: Functions
- 3 - functions indoor unit operation on/off by remote controller sensing the room temperature room temperature control starting current control time delay safety control indoor fan speed control operation indication lamps (led) healthy dehumidification mode sleep mode auto control auto air control ...
Page 4
- 4 - healthy dehumidification operation mode.( ) remote controller operation on/off reset operation mode selection temperature setting timer selection timer setting jet cool timer cancel sleep operation airflow direction control (cooling model only) (heating model only) temperature low high cooling...
Page 5
- 5 - product specifications(cooling only) * design and specifications subject to change without prior notice for product improvement. Items unit hmc030kd1 power supply ø, v, hz 230/208,60 cooling capacity btu/h 28,000/27,000 input w 3,600/3,450 running current a 16.0/16.5 comp. Locked rotor amp. A ...
Page 6
- 6 - product specifications(cooling & heating) items unit hmh030kd1 power supply ø, v, hz 1,230/208,60 cooling capacity btu/h 28,000/27,000 heating capacity btu/h 29,000/28,000 input cooling w 3,600/3,450 heating w 3,750/3,550 running current cooling a 16.0/16.5 heating a 16.5/17.0 comp. Locked coo...
Page 7: (1) Indoor Unit
(1) indoor unit - 7 - dimensions w h tubing hole cover tubing hole cover installation plate d w mm(inch) 1,259(49.6) h mm(inch) 349(13.7) d mm(inch) 205(8.1) model dimension 30k series.
Page 8: (2) Outdoor Unit
- 8 - model dim - 8 - w l7 l6 l8 l9 d l1 l2 l3 l10 l11 l4 l5 h gas side 3-way valve liquid side 3-way valve w mm(in ch) 870(34.3) h mm(in ch) 800(31.5) d mm(in ch) 320(12.6) l1 mm(in ch) 370(14.6) l2 mm(in ch) 340(13.4) l3 mm(in ch) 25(1.0) l4 mm(in ch) 775(30.5) l5 mm(in ch) 25(1.0) l6 mm(in ch) 54...
Page 9: Refrigeration Cycle Diagram
- 9 - refrigeration cycle diagram indoor unit outdoor unit indoor unit outdoor unit heat exchanger (evaporator) heat exchanger (evaporator) heat exchanger (condenser) heat exchanger (condenser) compressor compressor accumu lator suction line suction line 3-way valve evaporator line evaporator line 3...
Page 10
- 10 - pipe length and the elevation * capicity is based on standard length and maximum allowance length is the basis of reliability. * oil trap should be installed per 5~7 meters(16.4~23.0ft). Caution outdoor unit indoor unit a b a oil trap outdoor unit indoor unit b in case more than 5m (16.4ft) 3...
Page 11: Wiring Diagram
- 11 - wiring diagram (1) indoor unit (cooling only models, & heating models) motor sh-capa. Yl pillar terminal auto restart forced operation cn-disp cn-l/r cn-u/d cn-th thermistor step motor (up/down) step motor (l/r) h.V.B asm limits s/w negative ion option step motor (l/r) cn-l/r display pcb asm ...
Page 12: (2) Outdoor Unit
- 12 - (2) outdoor unit • cooling only models • heating models t o indoor unit po wer input fmo t/b comp(b) olp capacitor(b) capacitor(a) c c s s r r comp(a) 5 rd bl br bk yl yl br bl bk rd rd bl bk bk bk or or gn/yl bl br fuse (250v ,5a) fuse (250v ,5a) fuse(250v,3a) cn-power cn-fan cn-con cn-comp ...
Page 13: Operation Details
- 13 - (1) the function of main control 1. Time delay safety control • 3min.; the compressor operation is delayed for 3 minutes to balance the pressure of cycle. (protection of compressor) • 5sec.; the indoor fan is delayed for 5 seconds, when operating initially, to prevent noises occurred by the v...
Page 14
. Auto operation (electronic control mode) • the operation procedure is shown below. (cooling & heating model) ❋ if initial mode is decided, that mode is continued without the room temperature changing. ■ auto operation for cooling - 14 - press start/stop button select auto operation mode check the ...
Page 15
- 15 - ■ auto operation for dehumidification(only heating model) • the setting temperature will be same that of the auto operation for cooling. - compressor on temperature; setting temperature +2°f - compressor off temperature; setting temperture -1°f ■ auto operation for heating(only heating model)...
Page 16
- 16 - 5. Healthy dehumidification • when the dehumidification operation input by the remote control is received, the intake air temperature is detected and the setting temp is automatically set according to the intake air temperature. 26°c ≤ intake air temp ➲ 25°c 24°c ≤ intake intake air temp ➲ in...
Page 17
- 17 - 6. Heating operation mode(only heating model) the unit will operate according to the setting conditions by the remote controller. The operation diagram is shown below. Intake air temp. Setting temp. +6°f (compressor off) setting temp. (compressor on) selecting fan speed selecting fan speed a ...
Page 18
- 18 - 7. Cooling or heating mode with sleep mode auto control • when selecting the cooling( ) or the heating( ) combined with the sleep mode auto control( ), the operation diagram is as following. ■ cooling mode with the sleep mode • the setting temperature will be automatically raised by 2°f 30 mi...
Page 19
- 19 - 8. Forced operation to operate the appliance by force in case that the remote controller is lost, the forced operation button is on the main unit of the appliance to operate the appliance in the standard conditions. • press the forced operation button, the forced operation is carried out. • p...
Page 20: Display Function
- 20 - display function self-diagnosis function signal receptor receives the signals from the remote control.(signal receiving sound: two short beeps or one long beep.) operation indication lamps on/off : lights up during the system operation. Timer or sleep mode : lights up during timer operation o...
Page 21: Installation
- 21 - installation read completely, then follow step by step. 1. Installation of indoor, outdoor unit installation parts provided 1) select the best location 1. Indoor unit ■ do not have any heat or steam near the unit. ■ select a place where there are no obstacles in front of the unit. ■ make sure...
Page 22
- 22 - 3) how to fix installation plate the wall you select should be strong and solid enough to prevent vibration 1. Mount the installation plate on the wall with four type a screws. If mounting the unit on a concrete wall, use anchor bolts. Mount the installation plate horizontally by aligning the...
Page 23
- 23 - 1) flaring work main cause for gas leakage is due to defect in flar- ing work. Carry out correct flaring work in the follow- ing procedure. 1. Cut the pipes and the cable. ■ use the piping kit accessory or the pipes purchased locally. ■ measure the distance between the indoor and the outdoor ...
Page 24
- 24 - 2) connection of piping-indoor 1. Remove the 2 screws of right side panel. 2. Remove the front right side panel by the arrow. ■ the connector can be disconnected by pulling it while pressing the connector's hook. ■ remove the 1 screw for fixing lower panel. 3. Remove the lower panel by the ar...
Page 25
- 25 - 3. Tape the tubing, drain hose and the connecting cable. Be sure that the drain hose is located at the lowest side of the bundle. Locating at the upper side can cause drain pan to overflow inside the unit. 3. Tape the tubing, drain hose and the connecting cable. Be sure that the drain hose is...
Page 26
- 26 - 6. Wrap the insulation material around the connecting portion. ■ overlap the connection pipe insulation material and the indoor unit pipe insulation material. Bind them together with vinyl tape so that there is no gap. ■ wrap the area which accommodates the rear pip- ing housing section with ...
Page 27
- 27 - 5. Indoor unit installation ■ hook the indoor unit onto the upper portion of the installation plate.(engage the three hooks of the rear top and rear lower of the indoor unit with the upper edge and lower edge of the installation plate.) ensure that the hooks are properly seated on the install...
Page 28
- 28 - ■ bundle the piping and drain hose together by wrapping them with cloth tape over the range within which they fit into the rear piping housing section. 8. Reroute the pipings and the drain hose across the back of the chassis. 9. Reinstall the parts to the original position. ■ refix the lower ...
Page 29
- 29 - 3) connection of the drain hose ■ the drain hose can be connected at two different positions. Use the most convenient position and, if necessary, exchange the position of the drain pan, rubber cap and the drain hose. ➊ drain pan ➋ rubber cap ➌ drain hose ➍ exchange if necessary ■ remove the d...
Page 30: Indoor Unit and Outdoor Unit
- 30 - 3. Connecting the cable between indoor unit and outdoor unit 1) connect the cable to the indoor unit by connecting the wires to the terminals on the control board individually according to the outdoor unit connection. (ensure that the color of the wires of the outdoor unit and the terminal no...
Page 31
- 31 - 2) connect the cable to the outdoor unit 1. Remove the control cover from the unit by loosen- ing the screw. Connect the wires to the terminals on the control board individually. 2. Secure the cable onto the control board with the cord clamp. 3. Refix the control cover to the original positio...
Page 32
- 32 - 1) checking the drainage 1. Remove the right side panel. 2. Remove the lower panel by the arrow. 3. Remove the left side panel. (remove the two screws.) 4. To check the drainage. ■ pour a glass of water on the drain pan. ■ ensure the water flows through the drain hose of the indoor unit witho...
Page 33
- 33 - 2) form the piping 1. Form the piping by wrapping the connecting por- tion of the indoor unit with insulation material and secure it with two kinds of vinyl tapes. ■ if you want to connect an additional drain hose, the end of the drain outlet should be routed above the ground. Secure the drai...
Page 34: 4. Air Purging
- 34 - 4. Air purging 1) air purging air and moisture remaining in the refrigerant system have undesirable effects as indicated below. ■ pressure in the system rises. ■ operating current rises. ■ cooling(or heating) efficiency drops. ■ moisture in the refrigerant circuit may freeze and block capilla...
Page 35
- 35 - 3. Evacuation ■ connect the charge hose end described in the preceding steps to the vacuum pump to evacuate the tubing and indoor unit. Confirm the "lo" knob of the manifold valve is open. Then, run the vacuum pump. The operation time for evacuation varies with tubing length and capacity of t...
Page 36: 5. Test Running
- 36 - 5. Test running 1. Check that all tubing and wiring have been prop- erly connected. 2. Check that the gas and liquid side service valves are fully open. 1. Prepare remote control remove the battery cover by pulling it according to the arrow direction. Insert new batteries making sure that the...
Page 37: Operation
- 37 - operation (1) name and function-remote control (cooling models) signal transmitter. Transmits the signals to the room air conditioner. Remote controller on off ° c / ° f set cancel signal transmitter 4 5 6 7 9 1 2 3 8 on/off timer buttons used to set the time of starting and stopping operatio...
Page 38
- 38 - (2) name and function-remote control (heat pump models) signal transmitter. Transmits the signals to the room air conditioner. Remote controller on off set cancel ° c / ° f signal transmitter 4 5 6 7 9 8 1 2 3 on/off timer buttons used to set the time of starting and stopping operation. Time ...
Page 39
- 39 - disassembly of the parts (indoor unit) warning : disconnect the unit from power supply before making any checks. Be sure the power switch is set to “off”. 1. To remove the grille from the chassis. ➊ remove the 2 screws of right side panel. ➋ remove the front right side panel by the arrow. ■ t...
Page 40
- 40 - ➎ remove the grille from the chassis. • remove the 4 securing screws.(30k, 32k) • remove the 5 securing screws.(36k, 38k) • to remove the grille, pull the lower left and right side of the grille toward you (slightly tilted) and lift it straight upward. 2. To remove the sensor, housing connect...
Page 41
- 41 - 3. To remove the control box. • remove the 5 securing screws. • pull the control box out from the chassis carefully. 4. To remove the discharge grille. • remove the 3 securing screw. • pressing the right side of the discharge grille downward slightly, unhook the discharge grille. • pull the d...
Page 42
- 42 - 6. To remove the fan motor • loosen the screw securing the cross-flow fan to the fan motor (do not remove). • loosen the screw securing the mount motor. • separate the fan motor from the cross-flow fan. • take care not to drop the motor. 7. To remove the cross-flow fan • loosen the screw secu...
Page 43: 3-Way Valve
- 43 - 3-way valve • procedure (1) confirm that both liquid side and gas side valves are set to the open position. – remove the valve stem caps and confirm that the valve stems are in the raised position. – be sure to use a hexagonal wrench to operate the valve stems. (2) operate the unit for 10 to ...
Page 44
- 44 - 1) re-air purging (re-installation) • procedure (1) confirm that both the liquid side valve and the gas side valve are set to the closed position. (2) connect the charge set and a gas cylinder to the service port of the gas side valve. – leave the valve on the gas cylinder closed. (3) air pur...
Page 45
- 45 - 2) balance refrigerant of the 3-way valve (gas leakage) • procedure (1) confirm that both the liquid side and gas side valves are set to the back seat. (2) connect the charge set to the 3-way valve’s port. – leave the valve on the charge set closed. – connect the charge hose to the service po...
Page 46
- 46 - 2. Evacuation (all amount of refrigerant leaked) • procedure (1) connect the vacuum pump to the center hose of charge set center hose (2) evacuation for approximately one hour. – confirm that the gauge needle has moved toward -76 cmhg (vacuum of 4 mmhg or less). (3) close the valve (lo side) ...
Page 47
- 47 - 3. Gas charging (after evacuation) • procedure (1) connect the charge hose to the charging cylinder. – connect the charge hose which you dis-con- nected from the vacuum pump to the valve at the bottom of the cylinder. – if you are using a gas cylinder, also use a scale and reverse the cylinde...
Page 48: Cycle Troubleshooting Guide
- 48 - cycle troubleshooting guide trouble analysis 1. Check temperature difference between intake and discharge air and operating current. Temp. Difference temp. Difference : approx. 0°c current : less than 80% of rated current temp. Difference : approx. 8°c(14°f) current : less than 80% of rated c...
Page 49
- 49 - electronic parts troubleshooting guide 1. Product does not operate at all. (* refer to electronic control device drawing and schematic diagram.) turn off main power turn on main power does "beeping" sound is made from the indoor unit? Primarily, the operating condition of micom is ok. Check t...
Page 50
- 50 - 2. The product is not operate with the remote controller. Turn on main power while the compressor has been stopped, the compressor does not operate owing to the delaying function for 3 minutes after stopped. Caused by other parts except the remote controller cause by the remote controller whe...
Page 51
- 51 - 3. Compressor/outdoor fan are unable to drive. Turn on main power operate "cooling mode( )" by setting the desired temperature of the remote controller is less than one of the indoor temperature by 1°c at least. When in air circulation mode, compressor/outdoor fan is stopped. Check the sensor...
Page 52
- 52 - check the triac high speed operation by remocon. (the indoor fan motor is connected) turn off main power check the connection of cn-motor check the fan motor check the fuse(ac250v/t2a) turn on main power check the related circuit of indoor fan motor. • the pin no 63 of micom, and the part for...
Page 53
- 53 - 6. When heating does not operate operate “heating mode( )” by setting the desired temperature of the remote controller is higher than one of the indoor temperature by 2°c(4°f) at least. In heating mode, the indoor fan operates in case the pipe temperature is higher than 28°c(50°f). Turn on ma...
Page 54
- 54 - check the connector of intake and pipe sensor(thermistors) • check the related circuit of r02h(12.1k), r04h(6.2k), r03h(1.0k), micom(no. 3, 4). • check the indoor room temperature is disconnected or not (about 10k Ω /at 25°c). • check the indoor pipe temperature is disconnected or not (about ...
Page 55: Electronic Control Device
- 55 - electronic control device (1) indoor unit p.W.B. Assembly p/no.: 6871a10153 (pcb assembly, main).
Page 56
- 56 - top view bottom view (2) outdoor unit p.W.B. Assembly.
Page 57
- 57 - (3) display p.W.B. Asm ■ model: hmc030kd1, hmh030kd1.
Page 58: Schematic Diagram
- 58 - schematic diagram (1) heat pump/cooling only series(indoor unit).
Page 59
- 59 - (2) heat pump series (outdoor unit) cn-4way live neutral cn-con reversing valve d1 d3 d5 d4 d6 d0 d2 xin d7 (vass)vss xout test reset tmp87ch46 micom r02a,4.7k 2 dc 5v ic01a 7036p 1 in-pipe cn-th2 1 1 in-temp c02a 10u 50v r03a,100 3 + r01a,1k dc 5v 4 2 3 4 2 3 r02h 12.1k c01a 0.01 cst8.00mgw ...
Page 60: 1. Indoor Unit
- 60 - exploded view and replacement parts list 1. Indoor unit 268712 135315 152313 267110 354210 35211b w0czz 146811-1 146811-2 152302 152302 359011-1 135311 342801 135301 268714 263230 249951 359011-2 342800 352390-2 346810 733010 135313 135314 135312 352390-1 131410 159901 352150
Page 61: Parts List(Indoor)
- 61 - parts list(indoor) note) * please ensure gcsc since these parts may be changed depending upon the buyer's request. (gcsc website http://biz.Lgservice.Com) 131410 chassis assembly 3141a10001d 3141a10001d 135311 grille assembly,discharge(indoor) 3531a10056m 3531a10056m 135312 grille assembly,fr...
Page 62: 2. Outdoor Unit
- 62 - 447910 552202 561410 552116 566000 649950 435512 554031 137213-1 137213-2 559010 435301 430410 546810 549610 437210 435511 552111 552201 263230 668711 w0czz-2 w0czz-1 552203-2 552203-1 554160-1 554160-2 567502 550140-1 550140-2 2. Outdoor unit.
Page 63: Parts List(Outdoor)
- 63 - parts list(outdoor) 137213-1 panel assembly,side 1a00202f 1a00202f 137213-2 panel assy,side 1a00202c 1a00202c 263230 thermistor assembly 6323a20002l 6323a20002l 430410 base assy,outdoor 3041ap2741l 3041ap2741l 435301 grille,discharge 3530a20007j 3530a20007j 435511 cover assy,control(outdoor) ...
Page 64
P/no.: 3828a20390q april 2004 printed in korea.