Technical Service Manual Inverter Series Pridiom Group LLC 80 Broadway Cresskill, NJ 07626 201-266-8232
GB Contents INTRODUCTION ....................................................................................................................................3 PRODUCT DATA SHEET (OUTDOOR UNIT)...................................................................................4 PRODUCT DATA SHEET (INDOOR UNIT).......................................................................................6 RATING CONDITIONS ................................................................................................
GB INTRODUCTION General It is a high efficiency DC inverter technology outdoor unit, since it’s a lego concept unit, it can be matched to several inverter indoor��������������� units��������� such as ������� wall mounted������ type� with ������������������������������ a capacity range of 9000� ����� –�� 12000��������������������������������� �������������������������������������� BTU����������������������������� �������������������������������� for each single indoor unit.
GB PRODUCT DATA SHEET Outdoor Unit Data Item Capacity (BTU) Inverter 9K Inverter 12K Inverter 18K Inverter 24K Cooling 9000 12000 18000 24000 Heating 11000 15000 19000 24500 SEER 18.00 18.00 17.17 15.69 HSPF 8.6 8.7 8.7 8.5 4.0/3.7 4.0/3.6 3.60/3.60 2.87/3.18 EER Cooling/COP Heating Op Range Cool °F 5~131 5~131 5~131 5~131 Op Range Heat °F minus 4 ~ 109 minus 4 ~ 109 minus 4 ~ 109 minus 4 ~ 109 61~90 61~90 61~90 61~90 Remote control setting temp.
GB Item D C I nve r t e r 1 : 2 Model AOM183HX AOM243HX Function Rated Voltage Rated Frequency Circuit Breaker Size Rated Current (RLA) (Heating/Cooling) Refrigerant (lbs) Rated Capacity (Btu) Capacity Invert Range (W) Input / Actual Input (W) Cooling Max. Power (W) Max Current (A) SEER Rated Capacity (Btu) Capacity Invert Range (W) Input / Actual Input (W) Heating Max. Power (W) Max Current (A) Declared COP / Actual COP (w/w.h.
GB Indoor Unit Data Model FAN MOTOR Input (W) Capacitor (UFD) Fan Motor FLA (A) Speed (Hi/Med/Low) (RPM) Indoor Number of rows Tube pitch row / pitch (in) Fin spacing (in) Evaporator Fin Type Tube outside dia.
GB Model FAN MOTOR AWM123HX Input (W) Capacitor (UFD) Fan Motor FLA (A) Speed (Hi/Med/ Low) (RPM) Evaporator Indoor Number of rows Tube pitch row / pitch (in) Fin spacing (in) Fin Type Tube outside dia.(in) / Type Coil Length x height x width (in) Air Flow (Hi/Med/Low) (CFM) Noise Level (dB(A) Fan Type Fan Diameter (in) Fan Length (in) Design Pressure (PSI) Unit Dimensions (W x H x D) (in) Packing Dimensions W x H x D) (in) Net / Gross Wt (lbs) Dehumidifying Volume (pt/hr) Auto-restart 54 1.
GB Operating Limits Cooling Heating Voltage Upper limit������ (DB) Outdoor 131 oF� Lower limit������ (DB) 5oF Upper limit������ (DB) 90 oF� Lower limit������ (DB) -4oF 2PH 198–264V����� /115V 3PH N/A OUTLINE DIMENSIONS Outdoor unit - AOS091HX
GB Outdoor unit - AOS0181HX Outdoor unit - AOS241HX
GB Outdoor unit - AOM183HX 72 50 825 845 50×3(=150) Outdoor unit - AOM243HX 956 351 342 560 10 378 50
GB PERFORMANCE DATA Indoor Units Data Indoor Units Capacity For 9000BT Capacity Model AWM093HX AWS091HX 9000BTU Cooling Capacity (BTU)---Run Model (Unit A,B,C or D),230/115V,Indoor fan at high speed INDOOR ENTERING AIR DB/WB TEMPERATURE [0F] OUTDOOR ENTERING AIR DB TEMPERATURE[0F] 14~68 (protection range) 77 86 95 104 115 DATA 72/59 75/63 81/66 84/70 TC 80 - 110 % of nominal SC 80 - 105 % of nominal PI 25 - 50 % of nominal 90/73 TC 8712 9252 9828 10404 10980 SC 6273 6382 6528
GB Heating Capacity (BTU)---Run Model (Unit A,B,C or D),230/115V,Indoor fan at high speed ID COIL ENTERING AIR DB TEMPERATURE [0F] OD COILENTERING AIR DB/WB TEM PERATU RE[0F] 5/3 14/10 20/18 30/28 36/34 45/43 50/48 59/54 59~75 (Protection Range) 12 DATA 59 68 77 TC 6912 6372 5940 PI 0.49 0.54 0.59 TC 7668 7128 6696 PI 0.59 0.64 0.70 TC 8208 7776 7236 PI 0.67 0.72 0.77 TC 8532 8100 7560 PI 0.71 0.75 0.80 TC 8748 8208 7776 PI 0.89 0.95 1.
GB Capacity Correction Factors Cooling Capacity Ratio Vs. Outdoor Temperature������������ Capacity Ratio Cool i ng Capaci t y Cor r ect i on Fact or 1. 4 1. 2 1 0. 8 0. 6 0. 4 0. 2 0 90/73 84/70 81/66 75/63 72/59 77 86 95 104 Out door Temp. (deg F) 115 Heating��������������������������������������� Capacity Ratio Vs. Outdoor Temperature Capacity Ratio Heat i ng Capaci t y Cor r ect i on Fact or 1. 4 1. 2 1 0. 8 0. 6 0. 4 0. 2 0 59 68 77 5 14 20 30 36 45 Out door Temp.
GB Indoor Units Capacity For 12000BTU Capacity Model AWM123HX 12000BTU AWS121HX Cooling Capacity (BTU)---Run Model (Unit A,B,C or D),230/115V,Indoor fan at high speed INDOOR ENTERING AIR DB/WB TEMPERATURE [0F] OUTDOOR ENTERING AIR DB TEMPERATURE[0F] DATA TC 80 - 110 % of nominal 14~68 (protection range) SC 80 - 105 % of nominal PI 25 - 50 % of nominal 77 86 95 104 115 14 72/59 75/63 81/66 84/70 90/73 TC 11616 12336 13104 13872 14640 SC 10421 10603 10845 11027 11269 PI 0
GB Heating Capacity (KW)---Run Model (Unit A,B,C or D),230V,Indoor fan at high speed ID COIL ENTERING AIR DB TEMPERATURE [0F] OD COILENTERING AIR DB/WB TEM PERATU RE[0F] 5/3 14/10 20/18 30/28 36/34 45/43 50/48 59/54 59~75 (Protection Range) DATA 59 68 77 TC 8960 8260 7700 PI 0.66 0.73 0.80 TC 9940 9240 8680 PI 0.80 0.87 0.95 TC 10640 10080 9380 PI 0.91 0.97 1.04 TC 11060 10500 9800 PI 0.96 1.02 1.08 TC 11340 10640 10080 PI 0.99 1.06 1.
GB Capacity Correction Factors Cooling Capacity Ratio Vs. Outdoor Temperature������� Capacity Ratio Cool i ng Capaci t y Cor r ect i on Fact or 1. 4 1. 2 1 0. 8 0. 6 0. 4 0. 2 0 90/73 84/70 81/66 75/63 72/59 77 86 95 104 Out door Temp. (deg F) 115 Heating��������������������������������������� Capacity Ratio Vs. Outdoor Temperature Capacity Ratio Heat i ng Capaci t y Cor r ect i on Fact or 1. 4 1. 2 1 0. 8 0. 6 0. 4 0. 2 0 59 68 77 5 16 14 20 30 36 45 Out door Temp.
GB Indoor Units Capacity For 18000BTU Capacity Model 18000BTU AWS181HX Cooling Capacity (BTU)---Run Model ,230V,Indoor fan at high speed INDOOR ENTERING AIR DB/WB TEMPERATURE [0F] OUTDOOR ENTERING AIR DB TEMPERATURE[0F] 14~68 (protection range) 77 86 95 104 115 DATA 72/59 75/63 81/66 84/70 TC 80 - 110 % of nominal SC 80 - 105 % of nominal PI 25 - 50 % of nominal 90/73 TC 17424 18504 19656 20808 21960 SC 15480 15750 16110 16380 16740 PI 1.19 1.21 1.23 1.25 1.
GB Heating Capacity (BTU)---Run Model,230V,Indoor fan at high speed ID COIL ENTERING AIR DB TEMPERATURE [0F] OD COILENTERING AIR DB/ DATA 59 68 WB TEM PERATU RE[0F] TC 12160 11210 5/3 PI 0.96 1.05 14/10 20/18 30/28 36/34 45/43 50/48 59/54 59~75 (Protection Range) 18 77 10450 1.15 TC 13490 12540 11780 PI 1.15 1.25 1.37 TC 14440 13680 12730 PI 1.31 1.40 1.50 TC 15010 14250 13300 PI 1.39 1.46 1.56 TC 15390 14440 13680 PI 1.42 1.52 1.62 TC 19760 19000 18240 PI 1.
GB Capacity Correction Factors Cooling Capacity Ratio Vs. Outdoor Temperature������������ Capacity Ratio Cool i ng Capaci t y Cor r ect i on Fact or 1. 4 1. 2 1 0. 8 0. 6 0. 4 0. 2 0 90/73 84/70 81/66 75/63 72/59 77 86 95 104 Out door Temp. (deg F) 115 Heating��������������������������������������� Capacity Ratio Vs. Outdoor Temperature Capacity Ratio Heat i ng Capaci t y Cor r ect i on Fact or 1. 4 1. 2 1 0. 8 0. 6 0. 4 0. 2 0 59 68 77 5 14 20 30 36 45 Out door Temp.
GB Indoor Units Capacity For 24000BTU Capacity Model 24000BTU AWS241HX Cooling Capacity (BTU)---Run Model,230V,Indoor fan at high speed INDOOR ENTERING AIR DB/WB TEMPERATURE [0F] OUTDOOR ENTERING AIR DB TEMPERATURE[0F] 14~68 (protection range) DATA 72/59 75/63 86 95 104 115 84/70 TC 80 - 110 % of nominal SC 80 - 105 % of nominal PI 77 81/66 90/73 25 - 50 % of nominal TC 23232 24672 26208 27744 29280 SC 20640 21000 21480 21840 22320 PI 1.72 1.75 1.78 1.81 1.
GB Capacity Correction Factors Cooling Capacity Ratio Vs. Outdoor Temperature������������ Capacity Ratio Cool i ng Capaci t y Cor r ect i on Fact or 1. 4 1. 2 1 0. 8 0. 6 0. 4 0. 2 0 90/73 84/70 81/66 75/63 72/59 77 86 95 104 Out door Temp. (deg F) 115 Heating��������������������������������������� Capacity Ratio Vs. Outdoor Temperature Capacity Ratio Heat i ng Capaci t y Cor r ect i on Fact or 1. 4 1. 2 1 0. 8 0. 6 0. 4 0. 2 0 59 68 77 5 14 20 30 36 45 Out door Temp.
GB Capacity Correction Factor Due to Tubing Length (One Way) Indoor units Model AWM093HX AWM123HX AWS091HX AWS121HX AWS181HX AWS241HX Cooling Heating 22
GB PRESSURE CURVE Model AOS091HX AOS241HX AOS121HX AOM183HX AOS181HX AOM243HX Suction Pressure Curve Discharge Pressure Curve 23
GB ELECTRICAL DATA Model Power Supply 1 PH, 115 VAC,60Hz Connected to Outdoor Maximum Current 9.3A Inrush Current 40A Starting Current 1A Circuit breaker 30� ��� A Power supply wiring - No. x cross section 1 X 3 X 2.5 mm2 Interconnecting cable - No. x cross section 2 X 4 X 1 mm2 Model AOS121HX Power Supply 1 PH, 115 VAC,60Hz Connected to Outdoor Maximum Current Inrush Current 10.8A 40A Starting Current 1A Circuit breaker 30� A Power supply wiring - No. x cross section 1 X 3 X 2.
GB Model AOS241HX Power Supply 1 PH, 230 VAC,60Hz Connected to Outdoor Maximum Current 12.2A Inrush Current 35A Starting Current 1A Circuit breaker 30� ��� A Power supply wiring - No. x cross section Interconnecting cable - No. x cross section Model 1 X 3 X 2.5 mm2 2 X 4 X 1 mm2 AOM183HX Power Supply 1 PH, 230 VAC,60Hz Connected to Outdoor Maximum Current Inrush Current 10.5A 40A Starting Current 1A Circuit breaker 20A Power supply wiring - No.
GB 8 .
GB A O S 1 8 1 H X��������������� Wiring Diagram A O S 2 4 1 H X��������������� Wiring Diagram 27
GB A O M 1 8 3 H X ��������������� Wiring Diagram A O M 2 4 3 H X ��������������� Wiring Diagram 28
GB AOM183HX AOM243HX Indoor-Outdoor Wiring Diagram B A AOS091HX AOS121HX AOS181HX AOS241HX Indoor-Outdoor Wiring 29
GB D iagram REFRIGER ATION DIAGR AMS AOS091HX Refrigeration Diagram AOS121HX Refrigeration Diagram 30
GB AOS181HX AOS241HX Refrigeration Diagram AOM183HX Refrigeration Diagram 31
GB AOM243HX Refrigeration Diagram TUBING CONNECTIONS 32
GB ¼” ~” ½” ~” ¾” Flare Nuts Va l v e C a p 11-13 13-20 40-45 13-20 60-65 18-25 70-75 18-25 80-85 40-50 Service Port Cap 11-13 11-13 11-13 11-13 11-13 TUBE (Inch) TORQUE (Nm) 1. 2. 3. 4. 5. 6. 7. 8.
GB CONTROL SYSTEM Function of Inverter indoor unit summary 1. 2. 3. 4. 5. • • • • • This control is use for DC Multi-Spilt air conditioners. Power of indoor unit supply is 220-240V/50Hz, voltage range is 170V～270V. Control precision of indoor temperature is ±1.8OF. Indoor fan motor is PG motor. Control accord with : GB5956-91(safe requirement of air conditioner) GB7725-2004( air conditioner): GB3797-87(control equipment of electrical equipment) Vibrancy test: frequency 50Hz, acceleration 2.
GB 2. Main PCB board • • • • • • • • • • • • • • Five Running Modes - Auto, Cooling, Heating, Dehumidify, Ventilation. Timer Function Indoor Temperature Detect. Indoor Coil Temperature Detect.
GB DC Inverter 1:2 PG motor speed: 12000BTU： Mode Cooling Speed Heating Speed Higher 1250 1250 High 1200 1200 Middle 950 950 Low 850 850 Lower 850 750 9000BTU： Mode Cooling Speed Heating Speed Higher 1250 1250 High 1150 1150 Middle 950 950 Low 750 750 Lower 750 750 Operating mode Air conditioner have four operating mode: auto, cooling, dehumidify, heating. 1.Cooling(∆T = T room temp.-∆T set temp) • • Range Of Set Temp.
GB • It require indoor unit to reduce power if indoor room temp. continuous less than or equal to 15 degree for 5 minutes, when room temp. is more than or equal to 17 degree, it add the power of indoor unit. 3.Heating(∆T = T room temp.-∆T set temp) • • Range of set temp. 60 OF-90 OF Compressor running as below figure. compressor on CONT 5 MIN off -7 OF -4 OF - It require outdoor unit to reduce power if indoor room temp. continuous more than set temp. for 5 minutes.
GB speed set speed lower turn off 77 OF 86 OF 90 OF coil pipe temp. Note: When Tp≤86 OF, flap is open at 85°and is running at lower speed, when Tp≥90 OF, it is running at set speed and flap revert to prior state. If Tp≤77 OF����������������������������� , ��������������������������� turn off indoor blower fan. • Defrost control - Indoor blower fan turn off when it enter defrost. • Clear quantity of heat - Turn off air conditioner in heating mode, if the coil pipe temp.
GB Timer and sleep • Timer - Remote can set 1-24 hours timer on or timer off. - Air conditioner is running . If set timer off, air conditioner is continuous running and display timer time, when timer time is end, it shutdown air conditioner. - air conditioner is shutdown . If set timer on, air conditioner at waiting state, it display timer time. when timer time is end, it turn on air conditioner. - when it set timer , the timer lamp is light and display set temp.
GB Turbo function Turbo is use in cooling /heating/ventilation mode, the indoor blower fan is running at super speed. (1) enter condition: press turbo key of remote. (2)end condition: - running time more than or equal to 15 minutes. - press turbo key of remote again. (3) all restrict and protect condition are active in turbo running. (4) return to prior state after end turbo running. Protection 1. Prevent frost of indoor coil pipe (cooling and dehumidify mode) - When the temp.
GB Fault display of indoor unit: Fault Display Communicate fault F1 Fan motor fault F4 Room temp. sensor fault F2 Temp. sensor of coil pipe outlet fault F3 Temp. sensor of coil pipe entrance fault F3 Temp.
GB A2. B2. B1. F1. EV. Indoor temp. 95 OF,Compressor max Indoor temp. 82 OF,Compressor max Indoor temp. 82 OF,Compressor min Indoor temp. 67 OF,Compressor min Indoor temp.87 OF,Compressor mid 2、Heating Condition Entering Method label Capacity Pressing Tubro for 5 times+Setting temp.77 OF H01 Pressing Tubro for 5 times+Setting temp.79 OF H11 Pressing Tubro for 5 times+Setting temp.81 OF H12 Pressing Tubro for 5 times+Setting temp.83 OF H22 Pressing Tubro for 5 times+Setting temp.
GB FUNCTION OF DUAL DC INVERTER TYPE System Frame Drawing Major Performance Index a) b) c) d) e) f) g) Voltage of Power Supply: AC220V ±15% Power of Controller: ≤15W Output of Three-phase Frequency Conversion: Wire Voltage: 70V-180V; Power: ≤5KW; Frequency: 10Hz-120Hz; Precision of Temperature Control: ±1oC; Applicable Environment： Temperature:-20-55oC Relative Humidity: ≤90%RH (No dew); Conservation Environment： Temperature:-25-70oC Relative Humidity: ≤95%RH (No dew); Executive Standard: GB/T7725-2004 &
GB Operation in Cooling Mode Control of Expansion Valve in Cooling Mode 1. Reset of Expansion Valve In the first time the expansion valves in all channels shall be shut down 600 steps, then the expansion valve corresponding to the indoor unit in normal communications with the outdoor unit shall be opened to standby mode steps. If accomplished, the outdoor unit shall be on standby mode, until the turn-on the indoor unit. 2.
GB Operation in Dehumidify Mode Dehumidify mode is same as cooling mode. Operation in heating Mode Adjustment of Expansion Valve: 1. Reset of Expansion Valve In the first time, the expansion valves in two channels shall be shut down 600 steps, then the expansion valve corresponding to the indoor unit in normal communications with the outdoor unit shall be opened to standby mode steps. If accomplished, the outdoor unit shall be on standby mode, until the turn-on the indoor unit.
GB delay after speed change. 4. The control of outdoor fan motor as figure 6 during defrost process. Speed table of outdoor fan motor indoor unit capacity <2hp outdoor ambient heating ≥2hp ≥3hp Speed grade T≥68 OF low low middle 54 OF≤T<68 OF low middle high T<54 OF middle high high Control of reverse valve(figure 5) 1. 2. The reverse valve is ahead run 20 seconds before compressor turn on. After compressor turn off, the reverse valve delay 60 seconds shutdown.
GB Defrost of heating mode(figure 6) 1. Defrost start condition If outdoor ambient is more than or equal to 61 OF,it can’t defrost. When the time of defrost interval is end , outdoor coil pipe temp. and outdoor ambient temp. continuous meet all conditions for 5 minutes, it enter defrost process: 1) If outdoor ambient temp. less than or equal to 32 OF , when Tpipe≤0.8Ttemp+a OF( a is a adjust constant ), it enter defrost process. 2) If outdoor ambient temp.
GB 4. Time sequence of defrost process (figure 6). Control of oil return circle 1. Oil return circle period When air conditioner has run for 10 minutes or accumulate time Tmsro is end, it execute oil return circle once. 2. When compressor is running to oil return circle, the indoor unit which have communication is return oil, expand valve is open fully and compressor’s frequency increase more than 3/5 of max frequency for 90 seconds, the expand valve of indoor unit which no communication is close.
GB 4. Leakage or reverse valve fault The air conditioner shutdown immediately when meet one of below conditions. 1) Heating: coil pipe temp. of outdoor unit can’t decrease 3 degree within setting time and coil pipe temp. of indoor unit can’t increase 3 degree all along. 2) Cooling: coil pipe temp. of outdoor unit can’t increase 3 degree within setting time and coil pipe temp. of indoor unit can’t decrease 3 degree all along. 5. High temp.
GB 12.Over current protection of compressor 1) The air conditioner stop running immediately and display error code when input current more than or equal to Imax. 2) The compressor decrease 2Hz per 3 seconds until input current less than or equal to (Imax-13) when the input current more than (Imax-13). 3) The compressor decrease 1Hz per 3 seconds until input current less than or equal to (Imax-16) when the input current more than (Imax-16).
GB Error marks on unit display Fault Corrective Actions Transducer module protection - auto restart P2 Over current protection of inverter module. Over voltage protection of inverter module. High temp. Protection of inverter module. Over current P3 Over load (outdoor ambient temp. More high). Voltage over low. Discharge temperature of compressor overheat, ambient temperature overheat P4 Add Refrigerant Outdoor ambient temp. Too high, if (t<-4 oF,t>131 F), it will alarm. o Temp.
GB exploded views and spare parts lists Outdoor unit :AOS091HX 52 NO. Name Number No.
GB Outdoor unit :AOS121HX NO. Name Number No.
GB outdoor unit :AOS181HX No. 1 2 3 4 5 6 7 8 9 10 54 Name Front grill Front Plate Axial flow fan Motor Left panel Motor support Condenser Top panel Electric box Rear Grill Number No.
GB outdoor unit :AOS241HX NO. 1 2 3 4 5 6 7 8 9 10 11 12 Name Top panel Anti-vibration pad Partition board Electric box Four-way valve Desiccation filter Electronic expansion valve Right panel Top of the Electric box Valve installation plate Low-pressure valve High-pressure valve Number No.
GB outdoor unit :AOM183HX No. 56 Name Number No.
GB outdoor unit : AOM243HX No. Name Number No.
GB appendix A - INSTALL ATION and oeration manual This instruction Manual is the universal-purpose version for the models of separate wall-mounted air conditioners manufactured by our Co. The appearance of the units that you purchase might be s l i g h t l y d i f f e r e n t from the ones described in the Manual, but it does not affect your proper operations and usage.
GB Contents LOCATION OF OUTDOOR UNIT .....................................................................................................60 ELECTRICAL CONNECTION BETWEEN INDOOR AND OUTDOOR UNIT...............................61 INSTALLATION/SERVICE TOOLS (ONLY FOR R410A PRODUCT)............................................62 REFRIGERANT TUBING.......................................................................................................................64 FINAL TASKS ..................................
GB location of outdoor unit Select the location considering the following: OUTDOOR UNIT 1 .The location must allow easy servicing and provide good air circulation as shown in fig2. 2.The unit may be suspended from a wall by a bracked(Optional)or located in a free standing position on the floor(preferably slightly elevated). 3.If the unit is suspended , ensure that the bracket is firmly connected and the wall is strong enough to withstand vibrations. 4.
GB electrical connection bet ween outdoor and indoor unit ELECTRICAL REQUIREMENTS Electrical wiring and connections should be made by qualified electricians and in accordance with local electrical codes and regulation.The air conditioner units must be grounded. The air conditioner units must be connected to an adequate power outlet from a separate branch circuit protected by a time delay circuit breaker,as specified on unit’s nameplate. Voltage should not vary beyond ± 10% of the rated voltage. 1 .
GB installation service tools ( only for R 410A ) C AUTION New Refrigerant Air Conditioner Installation This air conditioner adopts the new HFC refrigerant (R410A) which does not destroy ozone layer. R410A refrigerant is approx . 1.6 times of refigerant R22. Accompanied with the adoption of the new refrigerant , the refrigeration machine oil has also been changed.
GB New tools for R410A Nes tools for R410A Gauge manifold Charge hose Applicable to R22 model Chages x As the working pressure is high ,it is impossible to measure the working pressure using conventional gauges . In order to prevent any other refrigerant from being charged , the port diameters have been changed. x In order to increase pessure resisting strength. hose materials and port sizes have been changed( to 1 /2 UNF 20 threads per inch).
GB refrigerant tubing CONNECT THE INDOOR TO THE OUTDOOR UNIT The indoor unit contains a small quantity of nitrogen.Do not unscrew the nuts from the unit until you are ready to connect the tubing.The outdoor unit is supplied with suffcient refrigerant charge(R410A). Refer to outdoor unit nameplate. To prevent crushing,bend tubes using a bending tool. NOTE:Use refrigeration R410Atype copper tubing only. 1. Open the valve cover. 2.
GB Tightening torques of unions and valve caops: TUBE SIZE TORQUE Liquid line 1/4” 1 5 - 2 0 N.M. Suction line 3/8” 3 0 - 3 5 N.M. Suction line 1/2” 5 0 - 5 4 N.M. Suction line 5/8” 7 5 - 7 8 N.M. Fig 13 To prevent refrigerant leakage,coat the flared sur face with refrigeration oil Fig 14 1.Suction valve 2.Service port 3.
GB 6. Disconnect the charging hose from the vacuum pump and from the service ports of the suction and liquid valves. 7. Tighten the ser vice por t caps of suction and liquid valves. 8. Remove the valve caps from all valves,and open them using a hexagonal Allen wrench, 9.Securely tighten the caps onto all of the valves. 10.Check for gas leaks from all the connecting position.Test w i t h elec tronic leak detector or with a sponge immersed in soapy water for bubbles. 1.Charging set 5.Cap 9.Liquid valve 2.
GB 67
