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Lennox VHA 30, Installation Operating & Maintenance Manual, Page: 22 / 46

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Lennox VHA 30 Installation Operating & Maintenance Manual Download Page 22

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Connecting the Cable to Indoor Unit

• In order to protect cable, it should be inserted “Bushing Rubber”.

• The inside and outside connecting cable can be connected after opening the inlet grille.

Open the inlet grille manually.

Connet the supplied cables to the connector
on the control board.

Close the inlet grille.

Summary of Contents for VHA 30

Page 1: ...INSTALLATION OPERATING MAINTENANCEMANUAL FLOOR STANDING SPLIT UNIT English July 2002...

Page 2: ......

Page 3: ...Diagram 7 Wiring Diagram 8 Operation Details 9 Installation of Indoor Outdoor Unit 15 Test Running 26 Cycle 28 Cycle Troubleshooting Guide 31 Electronic Parts Troubleshooting Guide 32 Electronic Contr...

Page 4: ...ature Cooling Soft Dry Auto Fan Cooling Model Cooling Heating Soft Dry Fan Heat Pump Model Room temperature sensor Thermistor Maintains the room temperature in accordance with the setting temperature...

Page 5: ...Auto Fan Cooling Only Model Cooling Heating Soft Dry Fan E heater Heat Pump Model Fan Speed Selection Setting the temperature Timer Control Airflow Direction Control High Medium Low High Medium Up or...

Page 6: ...ontrol Outdoor Fan Speed Control Sensing Heat Exchanger Temperature Sensing Discharge Pressure For Compressor De ice PCB One speed Heat exchanger temperature sensor Thermistor Discharge pressure senso...

Page 7: ...R R C FPI EXCHANGER OUTDOOR R C FPI FAN INDOOR TYPE OUTDOOR TYPE ROOM TEMPERATURE CONTROL WIDTH INDOOR HEIGHT inch mm DEPTH WIDTH OUTDOOR HEIGHT inch mm DEPTH NET WEIGHT INDOOR Ib kg OUTDOOR Ib kg CON...

Page 8: ...t Vent Air Intake Vent Rear Air Outlet Vent INDOOR UNIT OUTDOOR UNIT HEAT EXCHANGER HEAT EXCHANGER COMPRESSOR GAS SIDE LIQUID SIDE COOLING HEATING REVERSING VALVE CHECK VALVE CAPILLARY TUBE CAPILLARY...

Page 9: ...MAIN PCB ASM FAN MOTOR 6 8 2 4 0 1 DOOR S W BK WH RD HVB ASM CN1 CN2 EVAP TH ROOM TH CN1 CN2 A CL UNIT RY BIMETAL RY BIMETAL RY BIMETAL ELECTRIC HEATER RY BIMETAL RY BIMETAL POWER SUPPLY POWER RELAY T...

Page 10: ...position The procedure is as the following 1st Press the ON OFF Button to operate the product 2nd Press the Airflow Direction Control Button to swing the louver left and right automatically Remote con...

Page 11: ...ir Temperature Setting temperature Fan speed Over 26 C 25 C Over 24 C below 25 5 C Intake air 1 0 C Over 22 C below 23 5 C Intake air 0 5 C below 21 5 C Intake air Temperature 18 C MAX When Switch to...

Page 12: ...ecting fan speed A point The indoor pipe temperature to be less then 35 C Discharge air Temperature to be less than 32 C The indoor fan operates for minimum 10sec even if falls lower than 37 C Low V S...

Page 13: ...pass from starting of defrost operation or when the outdoor pipe temperature rises over 12 C even if before 12 minutes The second defrost starts only when the outdoor pipe temperature falls below 6 C...

Page 14: ...pres sor OFF temperature is the setting temperature minus 1 C When the room temperature rises over the compressor ON temperature the operation mode is switched to the Cooling mode When the room temper...

Page 15: ...e set shall be stopped If you press start stop button while test operation operating test operation shall be stopped and the set shall start When test operation operating the display of 8 88 8 8 88 8...

Page 16: ...he wall ceiling fence or other obstacles 2 Outdoor unit If an awning is built over the unit to prevent direct sunlight or rain exposure be careful that heat radiation from the condenser is not restric...

Page 17: ...If there is any vibration transmitted to the build ing mount the rubber underneath the outdoor unit 4 Refrigerant amount Before shipment this air conditioner is filled with the rated amount of refrige...

Page 18: ...indoor unit 8 Check a gas leakage of the connecting part of the pipings 9 Air purging of the piping and indoor unit The air which contains moisture and which remains in the refrigeration cycle may cau...

Page 19: ...sel Refrigerant R 22 Gas charge Air purge Cleaning the pipe 12 Spanner To tighten the connecting parts of the pipings 13 Monkey spanner 14 Driver 15 Pliers 150mm Cutting the wires 16 Tapeline To measu...

Page 20: ...ng the pipes Insert the flare nuts mounted on the connection ports of both indoor and outdoor unit onto the copper pipes Some refrigerant gas may leak when the flare nuts are removed from the indoor u...

Page 21: ...t the bending process to prevent the tubing from cracking or crushing Keep in mind that the bending part should not be cracked and make the radius R as long as possi ble Refer to Fig 2 PIPE SIZE TORQU...

Page 22: ...tect cable it should be inserted Bushing Rubber The inside and outside connecting cable can be connected after opening the inlet grille Open the inlet grille manually Connet the supplied cables to the...

Page 23: ...flare nut with torque wrench ensure the direction for tightening follows the arrow on the wrench 2 Connecting cable to outdoor unit Open the control board cover from the outdoor unit by removing the s...

Page 24: ...vice operations The screws which fasten the wiring in the cas ing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation Che...

Page 25: ...1 Checking the Drainage Remove the inlet grille with your hands as shown right and left and pull in the direction indicated by the arrow Check the drainage Pour a glass of water into the drain pan En...

Page 26: ...he piping from a trap Fix the piping onto the wall with saddle or bracket When using the drain elbow hose use a mount of 3cm of higher In the cold district 0 c continued for 2 3 days the drain water i...

Page 27: ...noise operating pressure piping temperature compressive pressure As to the structure and appearance check following items 2 Connection of power supply 1 Connect the power supply cord to the independen...

Page 28: ...he wires 4 Specification of power source 5 Confirm that electrical capacity is sufficient 6 Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the n...

Page 29: ...ce port must be closed this test is only for checking whether pipe connection is ok or not 5 If there is no leakage discharge R22 in piping completely into tank for retrieving Complete discharge is ne...

Page 30: ...gas side slightly and then close it tightly 3 Operate the air conditioner for 10 15 min until cycle is stabilized 4 Close the spindle of service port liquid side high pressure and wait till pressure...

Page 31: ...approximately 150g each time while operating the air conditioner in the cooling cycle however one time is not sufficient wait approximately 1 minute and then repeat the procedure 4 Immediately disconn...

Page 32: ...oom air humidity When the room air humidity is relativery higher temperature difference is smaller When the room air humidity is relatively lower temperature difference is larger 2 Check temperature a...

Page 33: ...64 of MICOM DC5V Exchange MICOM YES NO Check the main P C B pattern NO NO Check the D02D D05D NO YES Exchange the transformer Is shorted the transformer output NO YES Is the output voltage of IC03D DC...

Page 34: ...the DC5V at 18 pin of terminal MICOM Is the DC12V at each terminal RY 4WAY COIL Isthe AC220V AC240V between connector 4WAY andCN outunit of Main P C B Is the DC12V at each terminal RY COMP COIL Replac...

Page 35: ...Main PCB ON Heat S W ON Heater S W ON Replacement MICOM Replacement IC02M Replacement RY HEATER Is the heater S W of Main PCB ON Is the DC 5V at 15 pin of MICOM Is the DC 12V at eack terminal RY HEAT...

Page 36: ...ic control device MAIN P C B ASM DISPLAY P C B ASM CN 2 CN 1 C2 C1 G PRE AMP O V3 J1 J3 J4 J7 J8 J9 J2 A CL PWB 6870AQ2228A ASM 6871AQ3142 LED MODULE ON OFF J5 J6 C4 D3 D1 D2 D4 D6 D5 MODE LOW HIGH SP...

Page 37: ...Schematic Diagram 36...

Page 38: ...Exploded View and Replacement Parts List 1 Indoor Unit 37 135310 147581 1 147581 2 147582 146812 137211 135313 137211 2 152302 267110 268712 150170...

Page 39: ...38 149750 135515 336610 359011 346810 249951 268714 354211 130411 330870 W0CZZ 352150 330860...

Page 40: ...IDE ASSY 4975AP3778A 1 150170 MAGNET 4A70152B 1 152302 FILTER A C 5230AP3116A 1 249951 CONTROL BOX ASSY 4995A20084M 1 267110 REMOTE CONTROLLER 6711A20022Y 1 268712 PCB DISPLAY 6871AQ3142E 1 268714 PCB...

Page 41: ...Unit 40 C S R 435512 437210 349480 447910 559010 546810 W0CZZ 2 W0CZZ 1 269711 W6640 269201 649950 554031 437213 1 263230 437212 1 437213 2 435511 W0CZZ 3 552203 1 552203 2 552202 566000 554160 43041...

Page 42: ...ER TOP 3H03266H 1 437210 PANEL FRONT 1A00197C 1 437212 1 GRILLE REAR 1A00208D 1 447910 BARRIER ASSY 2A01043A 1 546810 MOTOR FAN 4681A20008N 1 552202 VALVE REVERSING 3A02027B 1 552203 1 VALVE SERVICE 2...

Page 43: ...42 Memo...

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Page 46: ...lennox slovensko lennox sk LENNOX REFAC S A tel 34 915 40 18 10 fax 34 915 42 84 04 e mail marketing lennox refac com LENNOX DISTRIBUTION KIEV tel 380 44 213 14 21 fax 380 44 213 14 21 e mail jankauk...

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