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BLD2022-1510_Manufacturer_Specifications_and_Installation_Instructions_11.3.2022_9.29.47_AM_3201035Job Name: System Reference: Date: r *61— . FEATURES • Variable speed INVERTER -driven compressor • Optional base pan heater • Quiet outdoor unit operation as low as 52 dB(A) • High pressure protection • Compressor thermal protection • Compressor overcurrent detection • Fan motor overheating/voltage protection Specifications are subject to change without notice. 0 2022 Mitsubishi Electric Trane HVAC US LLC. All rights reserved. Cooling' (Non -Ducted // Mix // Ducted) Maximum Capacity BTU/H 28,400 // 28,400 // 28,400 Rated Capacity BTU/H 28,400 // 27.900 H 27,400 Minimum Capacity BTU/H 11,600// 11.300// 11,000 Maximum Power Input W 2,680 // 2,680 // 2,680 Rated Power Input W 2,680 // 2,760 // 2,840 Power Factor (208V, 230V) % 99.0. 99.0 // 99.0, 99.0 // 99.0. 99.0 Heating at 47°F2 (Non -Ducted // Mix // Ducted Maximum Capacity BTU/H 36,000 // 36,000 // 36,000 Rated Capacity BTU/H 28,600 // 28,100 // 27,600 Minimum Capacity BTU/H 18,100 // 18,300 // 18,500 Maximum Power Input W 3,300 // 3,300 // 3,300 - Rated Power Input W 2,150 // 2,185 // 2,220 Power Factor (208V, 230V) % ( _98.5. 98.5 // 98.4, 98.4 // 98.2, 98.2 21,000 H 21,000 // 21,000 17,800 // 17,800 // 17,800 2,740//2,780//2,820 - - - - 1,760 // 1.830 // 1,900 18,200 // 18,200// 18,200 2,310 // 2,355 // 2,400 19.0 H 17.6 // 16.2 10.6 // 10.12 // 9.65 - - - 10.6 // 10.1 // 9.6 3.9 //3.77 // 3.65 2.25 // 2.22 // 2.18 2.31 // 2.26 // 2.22 No // No // No Heating at 17°F' (Non -Ducted // Mix // Ducted) Maximum Capacity Rated Capacity Maximum Power Input _ --- - -------- Rated Power Input BTU/H BTU/H W 1 W Heating at 5°F' (Non -Ducted // Mix // Ducted Maximum Capacity BTU/H Maximum Power Input W Efficiency (Non -Ducted // Mix // Ducted) SEER EER' HSPF (IV) COP at 47'F2 COP at 17°F at Maximum Capacity' COP at 5'F at Maximum Capacity' ENERGY STAR' Certified Electrical Electrical Power Requirements Voltage, Phase, Frequency 208/230, 1, 60 Guaranteed Voltage Range VAC 187-253 Voltage: Indoor - Outdoor, S1 S2 VAC 2081230 Voltage: Indoor -Outdoor, S2S3 V DC 24 Short-circuit Current Rating (SCCR) kA 5 Recommended Fuse/Breaker Size A 25 Recommended Wire Size AWG 14 Minimum CircuitAmpacity A 22.1 Maximum Overcurrent Protection A 25 Fan Motor Full Load Amperage A 2.43 Outdoor unit Airflow Rate (Cooling / Heating) CFM 2,287 / 2,382 Refrigerant Control LEV Defrost Method Reverse Cycle Heat Exchanger Type Plate fin coil Sound Pressure Level, Cooling' dB(A) 52 Sound Pressure Level, Healing' dB(A) 56 Compressor Type DC INVERTER -driven Twin Rotary Compressor Model SNB220FQGMC _ Compressor Rated Load Amps A 12 Compressor Locked Rotor Amps A 13.7 Compressor oil Type // Charge oz. FV50S // 23.7 Base Pan Heater Optional Unit Dimensions W In. [mm] 37-13/32 [950] D: In. [mm] 13 [330] H: In. [mm] 31-11/32 [796] Package Dimensions W In. [mm] 40-15/16 [1,040] D: In. [mm] 17-11/16 [450] H: In. (mm] 40-11/16 [1,0331 Unit Weight Lbs.[kg] 137 [62] Package Weight Lbs.[kg] 157 (71] Outdoor unit operating temperature range Cooling Intake Air Temp (Maximum / Minimum A) 'FDB 115 / 14 Cooling Thermal Lock -out / Re -start Temperatures °FDB 10.4114 Healing Intake AirTemp (Maximum / Minimum) °FWB 6515 Healing Thermal Lock -out / Re -start Temperatures °FDB 1.4 / 5 Refrigerant Charge Lbs, oz 6.0, 13.0 Chargeless Piping Length Ft. [m] 98.0 [30.0] Additional Refrigerant Charge Per Additional Piping Length oz./Ft. [g/m] 0.216 [20] NOTES: AHRI Rated Conditions 'Cooling (Indoor // Outdoor) 'F 80 DB, 67 WB // 95 DB, 75 WB (Rated data is determined at a fixed compressor speed) 2Healing at 47°F (Indoor // Outdoor) °F 70 DB, 60 WB // 47 DB, 43 WB 'Heating at 17'F (Indoor // Outdoor) 'F 70 DB, 60 WB // 17 DB, 15 WB Conditions 4Healing at 5'F (Indoor // Outdoor) °F 70 DB, 60 WB // 5 DB, 4 WB 'Applications should be restricted to comfort cooling only; equipment cooling applications are not recommended for low ambient temperature conditions. 'A 5°F DB -115°F DB when optional wind baffles are installed For actual capacity performance based on indoor unit type and number of indoor units connected, please refer to MXZ Operational Performance. Although the maximum connectable capacity is 130%, the outdoor unit cannot provide more than 100% of the rated capacity. Please utilize this overcapacity capability for load shedding or applications where It is known that all connected units will NOT be operating at the same time. Specifications are subject to change without notice. 0 2022 Mitsubishi Electric Trane HVAC US LLC. All rights reserved. 1.FREE SPACE E E E 0 3-15/16' or more P !; n P p 8 � 2.SERVICE SPACE FORM# MXZ-3C30NA3 - 202206 SERVICE SPACE (Foundation Bolt 1,110) Unit: inch (mm) LIa V006351FLARE GAS 3/810952)FLARE LIa 1/4(0635)FLARE GAS V2'1012.71FLARE Conduit plates Conduit connector ti.ti,t --ail Lock nut 1340 Satellite Boulevard Suwanee, GA 30024 Toll Free: 800-433-4822 www.mehvae.com Ou. Intertek Specifications are subject to change without notice. 0 2022 Mitsubishi Electric Trane HVAC US LLC. All rights reserved. ArtMITSUBISHI ELECTRIC Split -type Air -Conditioner MXZ-3C24NA2 MXZ-3C30NA2 MXZ-4C36NA2 Installation Manual I For INSTALLER This manual only describes the installation of outdoor unit. When installing the indoor unit, refer to the installation manual of indoor unit. Any structural alterations necessary for installation must comply with local build- ing code requirements. Notice Onstallation I Destinee a I'INSTALLATEUR • Cette notice ne decrit que ('installation de I'appareil exterieur. Lors de ('installation de I'appareil interieur, consultez la notice d'installation de cet appareil. Toute alteration structurelle requise pour ('installation doit titre conforme aux exi- gences du code du batiment local. Manual de instalaci6n I Para el INSTALADOR • En este manual solo se describe la instalacion de la unidad exterior. Para instalar la unidad interior, consulte el manual de instalacion de dicha uni- dad. Cualquier modificaci6n estructural necesaria para Ilevar a cabo la instalacion de- bera cumplir las normas de edificaci6n locales. 11 'CONTENTS• ": Required Tools for Installation Phillips screwdriver 5/32 in. (4 mm) hexagonal 1 Level wrench 1. BEFORE INSTALLATION... ......................................................... Scale Flare tool for RA 2. OUTDOOR UNIT INSTALLATION ...............................................4 Utility knife or scissors Gauge manifoldd fo41 r R410A 3. FLARING WORK AND PIPE CONNECTION...............................5 Torque wrench Vacuum pump for R410A 4. PURGING PROCEDURES, LEAK TEST, AND TEST RUN.........5 Wrench (or spanner) Charge hose for R410A 5. PUMPING DOWN........................................................................7 Pipe cutter with reamer 1. BEFORE INSTALLATION 1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY Be sure to read "THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY' before installing the air conditioner. Be sure to observe the warnings and cautions specified here as they include important items related to safety. After reading this manual, be sure to keep it together with the OPERATING INSTRUCTIONS for future reference. ■ Do not install the unit by yourself (user). Incomplete installation could cause fire or electric shock, injury due to the unit falling, or leakage of water. Consult the dealer from whom you purchased the unit or a qualified installer. ■ Perform the installation securely referring to the installation manual. Incomplete installation could cause fire or electric shock, injury due to the unit falling, or leakage of water. ■ When installing the unit, use appropriate protective equipment and tools for safety. Failure to do so could cause injury. ■ Install the unit securely in a place which can bear the weight of the unit. If the installation location cannot bear the weight of the unit, the unit could fall causing injury. ■ Perform electrical work according to the Installation manual and be sure to use an exclusive circuit. Do not connect other electrical appliances to the circuit. If the capacity of the power circuit is insufficient or there is incomplete electrical work, it could result in a fire or an electric shock. ■ Do not damage the wires by applying excessive pressure with parts or screws. Damaged wires could cause fire. ■ Be sure to cut off the main power in case of setting up the indoor P.C. board or wiring works. Failure to do so could cause electric shock. ■ Use the specified wires to connect the indoor and outdoor units securely and attach the wires firmly to the terminal block connecting sections so the stress of the wires is not applied to the sections. Incomplete connecting and securing could cause fire. ■ Do not install the unit in a place where inflammable gas may leak. If gas leaks and accumulates in the area around the unit, it could cause an explosion. ■ Do not use intermediate connection of the power cord or the extension cord and do not connect many devices to one AC outlet. It could cause a fire or an electric shock due to defective contact, defective insulation, exceeding the permissible current, etc. ■ Be sure to use the parts provided or specified parts for the installation work. The use of defective parts could cause an injury or leakage of water due to a fire, an electric shock, the unit falling, etc. ■ When plugging the power supply plug into the outlet, make sure that there is no dust, clogging, or loose parts in both the outlet and the plug. Make sure that the power supply plug is pushed completely into the outlet. If there is dust, clogging, or loose parts on the power supply plug or the outlet, it could cause electric shock or fire. If loose parts are found on the power supply plug, replace it. ■ Attach the electrical cover to the indoor unit and the service panel to the outdoor unit securely. Perform the drainage/piping work securely according to the installation manual. If there is defect in the drainage/piping work, water could drop from the unit, soaking and damaging household goods. Do not touch the air inlet or the aluminum fins of the outdoor unit. This could cause injury. 1-2. SPECIFICATIONS If the electrical cover of the indoor unit and/or the service panel of the outdoor unit are not attached securely, it could result in a fire or an electric shock due to dust, water, etc. ■ When installing, relocating, or servicing the unit, make sure that no sub- stance other than the specified refrigerant (R410A) enters the refrigerant circuit. Any presence of foreign substance such as air can cause abnormal pressure rise and may result in explosion or injury. The use of any refrigerant other than that specified for the system will cause mechanical failure, system malfunction, or unit breakdown. In the worst case, this could lead to a serious impediment to securing product safety. ■ Do not discharge the refrigerant into the atmosphere. If refrigerant leaks during installation, ventilate the room. If refrigerant comes in contact with a fire, harmful gas could be generated. Refriger- ant leakage may cause suffocation. Ventilate the room. ■ Check that the refrigerant gas does not leak after installation has been completed. If refrigerant gas leaks indoors, and comes into contact with the flame of a fan heater, space heater, stove, etc., harmful substances will be generated. ■ Use appropriate tools and piping materials for installation. The pressure of R410A is 1.6 times more than R22. Not using appropriate tools or materials and incomplete installation could cause the pipes to burst or injury. ■ When pumping down the refrigerant, stop the compressor before discon- necting the refrigerant pipes. If the refrigerant pipes are disconnected while the compressor is running and the stop valve is open, air could be drawn in and the pressure in the refrigera- tion cycle could become abnormally high. This could cause the pipes to burst or injury. ■ When installing the unit, securely connect the refrigerant pipes before starting the compressor. If the compressor is started before the refrigerant pipes are connected and when the stop valve is open, air could be drawn in and the pressure in the refrigeration cycle could become abnormally high. This could cause the pipes to burst or injury. ■ Fasten a flare nut with a torque wrench as specified in this manual. If fastened too tight, a flare nut may break after a long period and cause refrigerant leakage. ■ The unitshall be installed in accordance with national wiring regulations. ■ Ground the unit correctly. Do not connect the ground to a gas pipe, water pipe, lightning rod ortelephone ground. Defective grounding could cause electric shock. ■ Be sure to install a Ground Fault Interrupt (GFI) circuit breaker. Failure to install a Ground Fault Interrupt (GFI) circuit breaker may result in electric shock or fire. ■ Do not install the outdoor unit where small animals may live. If small animals enter and touch the electric parts inside the unit, it could cause a malfunction, smoke emission, or fire. Also, advise user to keep the area around the unit clean. Power supply Pipe length and height difference *1, *2, *3, *4, *5, *6 Model Rated Voltage Frequency Max. pipe length per indoor unit / for multi -system Max. height difference Max. no. of bends per in- door unit / for multi system Refrigerant adjustment A *7 MXZ-3C24NA2 MXZ-3C30NA2 208 / 230 V 60 Hz 82 ft. (25 m) / 230 ft. (70 m) 49 ft. (15 m) 25 / 70 1.08 oz each 5 ft. (20 g/m) MXZ-4C36NA2 *1 Never use pipes with thickness less than specified. The pressure resistance will be insufficient. *2 Use a copper pipe or a copper -alloy seamless pipe. *3 Be careful not to crush or bend the pipe during pipe bending. *4 Refrigerant pipe bending radius must be 4 in. (100 mm) or more. *5 Insulation material : Heat resisting foam plastic 0.045 specific gravity *6 Be sure to use the insulation of specified thickness. Excessive thickness may cause incorrect installation of the indoor unit and insufficient thickness may cause dew drippage. *7 If pipe length exceeds 98 ft. (30 m), additional refrigerant (R410A) charge is required. (No additional charge is required for pipe length less than 98 ft. (30 m).) (pipe length (ft.) — 98) Additional refrigerant (ft.) = A x 5 Additional refrigerant (m) = A x (pipe length (m) — 30) En-1 1-3. SELECTING OPTIONAL DIFFERENT -DIAMETER JOINTS If the diameter of connection pipe does not match the port size of outdoor unit, use optional different -diameter joints according to the following table. (Unit: inch (mm)) Port size of outdoor unit Optional different -diameter joints (port size of outdoor unit — diameter of connection pipe) MXZ-3C MXZ-4C Liquid / Gas 1/4 (6.35) --j 3/8 (9.52) : PAC-493PI 3/8 (9.52) — 1/2 (12.7) : MACA54JP-E 3/8 (9.52) 5/8 (15.88) : PAC-SG76RJ-E A UNIT 1/4 (6.35) / 1/2 (12.7) 1/2 (12.7) 318 (9.52) : MAC-A455JP-E 1/2 (12.7) 5/8 (15.88) : MAC-A456JP-E B - C UNIT B - D UNIT 1/4 (6.35) / 3/8 (9.52) Refer to the installation manual of indoor unit for the diameter of connection pipe of indoor unit. 1-4. SELECTING THE INSTALLATION LOCATION Where it is not exposed to strong wind. Where airflow is good and dustless. Where rain or direct sunshine can be avoided as much as possible. Where neighbours are not annoyed by operation sound or hot air. Where rigid wall or support is available to prevent the increase of operation sound or vibration. Where there is no risk of combustible gas leakage. When installing the unit, be sure to secure the unit legs. Where it is at least 10 ft. (3 m) away from the antenna of TV set or radio. Op- eration of the air conditioner may interfere with radio or TV reception in areas where reception is weak. An amplifier may be required for the affected device. Install the unit horizontally. Please install it in an area not affected by snowfall or blowing snow. In areas with heavy snow, please install a canopy, a pedestal and/or some baffle boards. Note: It is advisable to make a piping loop near outdoor unit so as to reduce vibration transmitted from there. FREE SPACE REQUIRED AROUND OUTDOOR UNIT 1. Obstacles above When there is no obstacle in front and on the sides of the unit, it is allowed to install the unit where an obstacle is above the unit only if the space shown in the figure is provided. 3-15/16 (100) or more 19-11/16 (500) or more all Obstacles in front (blowing) only When there is an obstacle in front of the unit as shown in the figure, open space above, behind, and on the sides of the unit is required. 719-11/16 (500) or more 5. Obstacles in front, behind and on side(s) When installing the unit in an area that is enclosed with walls such as a verandah, be sure to have enough space as shown below. In this case, the air conditioning capacity and power consumption might deteriorate. When installing two or more units, do not install the units in front or behind each other. 00or more Note: When operating the air conditioner in low outside temperature, be sure to follow the instructions described below. Never install the outdoor unit in a place where its air inlet/outlet side may be exposed directly to wind. To prevent exposure to wind, install the outdoor unit with its air inlet side facing the wall. To prevent exposure to wind, it is recommended to install a baffle board on the air outlet side of the outdoor unit. Avoid the following places for installation where air conditioner trouble is liable to occur. Where flammable gas could leak. Where there is much machine oil. Salty places such as the seaside. Where sulfide gas is generated such as a hot spring. Where there is high -frequency or wireless equipment. Where there is emission of high levels of VOCs, including phthalate com- pounds, formaldehyde, etc., which may cause chemical cracking. Front(blowing)side open As long as space indicated in the figure is provided, it is allowed to install the unit where obstacles are behind and on the sides of the unit. (No obstacle above the unit) 7-7/8 (200) or more 3-15/16 (100) or more 13-25/32 (350) or more 4. Obstacles in front and behind The unit can be used by attaching an optional outdoor blowing guide (PAC-SH96SG-E) (but both sides and top are open). 315116 (100) or more 19-11/16 (500) or more i Blowing guide (PAC-SH96SG-E) Service space Provide space for service and maintenance as shown in the figure. Service space 4-15/16(1 0) or more 19-11/16 (500) or more 3-15/16 (100) or moreA- I n 13-25132 (350) or more 13-25/32 (350) or more (Unit: inch (mm)) En-2 1-5. INSTALLATION DIAGRAM Open as a rule More than 19-11/16 in. (500 mm) if the front and both sides are open (- More than 3-15/16 in. (100 mm) Open as a rule More than 19-11/16 in. (500 mm) if the back, both sides and top are open After the leak test, apply insulat- ing material tightly so that there is no gap. When the piping is to be attached to awall containing metals (tin plated) or metal netting, use a chemically treated wooden piece 25132 in. (20 mm) or thicker between the wall and the piping or wrap 7 to 8 turns of insulation vinyl tape around the piping. To use existing piping, perform COOL operation for 30 minutes and pump down before removing the old air conditioner. Remake flare according to the dimension for new �] More than 3-15/16 in. (100 mm) More than 7-7/8 in. (200 mm) if there - are obstacles to both sides i I (F) More than 13-25/32 in. (350 mm) Outdoor unit installation 37-2/5 2-U-shape notched holes 6-6l7 23-5/8 (Base bolt M10) T Air inlet dl � M Air inlet M rn 2 - (15/32 • 6/7) f a Air outlet oval holes (Base bolt M10) Unit : inch PARTS TO BE PROVIDED AT YOUR SITE (A) Power supply cord* 1 (B) Indoor/outdoor unit connecting wire* 1 (C) Extension pipe 1 (D) Wall hole cover 1 (E) Piping tape 1 (F) Extension drain hose (or soft PVC hose, 19/32 in. (15 mm) inner diamelerorhard PVC pipe VP16) 1 (G) Refrigeration oil Little amount (H) Putty 1 (1) Pipe fixing band 2 to 7 (J) Fixing screw for (1) 2 to 7 (K) Wall hole sleeve 1 (L) Soft PVC hose, 19/32 in. (15 mm) inner diameter or hard PVC pipe VP16 for drain socket (1) 1 * Note: Place indoor/outdoor unit connecting wire (B) and power supply cord (A) at least 3 ft. (1 m) away from the TV antenna wire. The "My" for (B) to (K) in the above table is quantity to be used per indoor unit. Units should be installed by licensed contractor according to local code requirements. Outdoor unit installation 950 2-U-shape notched holes I (Base bolt M10) 174 600 Air inlet � Air inlet 1> o n � M v 10 2 12 x 22 f a Air outlet oval holes (Base bolt M10) Unit: mm En-3 2. OUTDOOR UNIT INSTALLATION 2-1. INSTALLING THE UNIT Be sure to fix the unit's legs with bolts when installing it. Be sure to install the unit firmly to ensure that it does not fall by an earthquake or a gust. Refer to the figure in the right for concrete foundation. Do not use the drain socket and the drain caps in the cold region. Drain may freeze and it makes the fan stop. - Fix here with M10 bolts. s�1 i Make the setting depth deeper. Make with wider. 2-2. CONNECTING WIRES FOR OUTDOOR UNIT Be sure to use special circuits for room air conditioner. Wiring work should be based on applicable technical standards. Wiring connections should be made following the diagram. Screws should be lightened so they won't loosen. 1) Remove the service panel. 2) Remove the conduit plate. 3) Attach the conduit connector to conduit plate with lock nut then secure it to the unit with screws. 4) Connect ground wires to the TB support. 5) Loosen terminal screw, and connect indoor/outdoor unit connecting wire (B) from the indoor unit correctly on the terminal block. Be careful not to make mis-wiring. Fix the wire to the terminal block securely so that no part of its core is appeared, and no external force is conveyed to the connecting section of the terminal block. 6) Firmly lighten the terminal screws to prevent them from loosening. After tightening, pull the wires lightly to confirm that they do not move. 7) Perform 5) and 6) for each indoor unit. 8) Connect power supply cord (A). 9) Close the service panel securely. Make sure that 3-2. PIPE CONNEC- TION is completed. Anchor leg d `o n ro / Anchor bolt length 23-5/8 (600) 0 mn Anchor bolt pitch (Unit: inch (mm)) ELECTRICAL SPECIFICATIONS OUTDOOR UNIT MXZ-3C24NA2 I MXZ-3C30NA2 I MXZ-4C36NA2 Power supply (V, PHASE, Hz) 208/230, 1, 60 Max. Fuse size (time delay) (A) 25 Min. CircuitAmpacity (A) 22.1 23.1 Fan motor (FL.A) 2.43 2.43 Compressor ( R.L.A) 12 12 H(L.R.A) 1 13.7 13.7 Control voltage Indoor unit -Remote controller: (Wireless) Indoor unit -Outdoor unit: DC12-24V Service panel acrews Connecting order Power supply Connect the terminal block in following order. P � © D © D P A—�B—�C—>D—>P D unit is for 4C36NA2 only I —'—' (A) �Tt -AB-- U - -B--- U - --- - j Terminal block for (B) indoor/outdoor unit Remark: A disconnect switch should be required. Check the local code. " Use a ring tongue terminal in order to connect a ground wire to terminal. _ INDOOR UNIT—®� Terminal block 1 I Terminal block S1S25S..-� i51,S253�.- ....... terminal ;..�2081230 VAC i 1 phase 60 Hz ! Disconnect \ switch' y• Grounding / terminal " i1 2 1S2 Terminalblock Ei—©® Tenninalblock OUTDOOR UNIT D unit is for 4C36NA2 only 5/8 in. 1 1-3/8 in. (35 mm) (15 mm) J Lead wive Power supply 208/230 VAC 1 phase 2 wires 60 Hz Grounding terminal" Conduit plate Conduit connector d z� Lock nut Conduit plate • Connect wires to the matching numbers of terminals. • Be sure to attach each screw to its correspondent terminal when securing the cord and/or the wire to the terminal block. CONNECTING WIRES AND CONNECTING GROUND WIRE Use solid conductor Min. AWG14 or stranded conductor Min. AWG14 Use double insulated copper wire with 600 V insulation. Use copper conductors only. Follow local electrical code. POWER SUPPLY CABLE AND GROUND WIRE Use solid or stranded conductor Min. AWG12. Use copper conductors only. Follow local electrical code. �? WARNING: U Lt—���jjj Use the indoor/outdoor unit connecting wire that meets the Stand- ards to connect the indoor and outdoor units and fix the wire to the Terminal block 7 Ground terminal block securely so that no external force is conveyed to the _-_-_-- connecting section of the terminal block. An incomplete connection or fixing of the wire could result in a fire. For future servicing, give extra length to the connecting wires. En-4 3. FLARING WORK AND PIPE CONNECTION 3-1. FLARING WORK 1) Cut the copper pipe correctly with pipe cutter. (Fig. 1, 2) 2) Completely remove all burrs from the cut cross section of pipe. (Fig. 3) • Aim the copper pipe downward while removing burrs to prevent burrs from dropping in the pipe. 3) Remove flare nuts attached to indoor and outdoor units, then put them on pipe having completed burr removal. (Not possible to put them on after flaring work.) 4) Flaring work (Fig. 4, 5). Firmly hold copper pipe in the dimension shown in the table. Select A inch (mm) from the table according to the toot selected. 5) Check Compare the flared work with Fig. 6. If flare is noted to be defective, cut off the flared section and do flaring work again. Good No good Copper /pipe 90, Burr Copper pipe Spare reamer Pipe cutter Tilted Uneven Burred Fig. 1 Fig. 2 Fig. 3 Flaring tool �% A Copper pipe Inside is shin - Smooth all ing without any around scratches. Die 'T Clutch type W ng nut type Fig.4 I Flare nut B Fig.5 Even length all around Fig.6 Pipe diameter B A [inch (mm)] Tightening torque [inch (mm)] [inch (mm)] Clutch type tool for R410AI Clutch type tool for R22 Wing nut type tool for R22 ft-lb N•m kgf•cm 1/4 (o6.35) 21/32 (17) 0 to 0.02 (0 to 0.5) 0.04 to 0.06 (1.0 to 1.5) 0.06 to 0.08 (1.5 to 2.0) 10 to 13 13.7 to 17.7 140 to 180 3/8 (o9.52) 7/8 (22) 25 to 30 34.3 to 41.2 350 to 420 1/2 (ol2.7) 1-1/32 (26) 0.08 to 1.0 (2.0 to 2.5) 36 to 42 49.0 to 56.4 500 to 575 5/8 (o15.88) 1-5/32 (29) 54 to 58 73.5 to 78.4 750 to 800 3-2. PIPE CONNECTION 1) Apply a thin coat of refrigeration oil (G) to the flared ends of the pipes and the pipe connections of the outdoor unit. 2) Align the center of the pipe with that of the pipe connections of the outdoor unit, then hand tighten the flare nut 3 to 4 turns. 3) Tighten the flare nut with a torque wrench as specified in the table. Over -tightening may cause damage to the flare nut, resulting in refrigerant leakage. Be sure to wrap insulation around the piping. Direct contact with the bare piping may result in burns or frostbite. t When installing the unit, securely connect the refrigerant pipes before starting thejl compressor. 3-3. INSULATION AND TAPING 1) Cover piping joints with pipe cover. 2) For outdoor unit side, surely insulate every piping including valves. t CAUTION 3) Using piping tape (E), apply taping starting from the entry of outdoor unit. Stop the end of piping tape (E) with tape (with adhesive agent attached). When there are the ports which are When piping have to be arranged through above ceiling, closet or where not used, make sure their nuts are the temperature and humidity are high, wind additional commercially sold tightened securely. insulation to prevent condensation. 4. PURGING PROCEDURES, LEAK TEST, AND TEST RUN 4-1. PURGING PROCEDURES AND LEAK TEST 1) Remove service portcap of stop valve on the side of the outdoor unit gas pipe. (The slop valves are fully closed and covered in caps in their initial stale.) 2) Connect gauge manifold valve and vacuum pump to service portof slop valve on the gas pipe side of the outdoor unit. 3) Run the vacuum pump. (Vacuumize for more than 15 minutes.) 4) Check the vacuum with gauge manifold valve, then close gauge manifold valve, and stop the vacuum pump. 5) Leave as it is for one ortwo minutes. Make sure the pointer of gauge manifold valve remains in the same position. Confirm that pressure gauge shows-14.7 psi [Gauge] (-0.101 MPa). 6) Remove gauge manifold valve quickly from service port of slop valve. 7) Fully open all stop valves on the gas pipe and the liquid pipe. Operating without fully opening lowers the performance and this causes trouble. 8) Refer to 1-2., and charge the prescribed amount of refrigerant if needed. Be sure to charge slowly with liquid refrigerant. Otherwise, composition of the refrigerant in the system may be changed and affect performance of the air conditioner. 9) Tighten cap of service port to obtain the initial status. 10)Leak test '4 to 5 turns Service port cap (Torque 10 to 13 ft-lb, 'Close 13.7 to 17.7 N-m, 140 `Open, to 180 kgf•cm) Hexagonal wrench N Compound pressure gauge (for R410A) -14.7 psi (-0.101MPa) / Pressure gauge \ (for R410A) Gauge mani- fold valve (for 0 - R410A) Handle Handle High Low Charge hose (for R410A) -' - Stop valve cap �� ,���� n Stop valve (Torque 15 to for LIQUID 22 ft-lb, 19.6 to Vacuum pump Stop valve 29A N•m, 200 (for R410A) for GAS to 300 kgf•cm) Precautions when us- When attaching the control valve in the control valve to the service portvalve core may g _ deform or loosen if excess pres- sure is applied This may cause Open gas leak. Control valve A When attaching the control valve to the service port, make sure that the valve core is in closed position, and then tighten part A. Do not tighten part A or turn the body when valve Charge hose I core is in open position. (for R410A) Service port En-5 4-2. GAS CHARGE Perform gas charge to unit. 1) Connect gas cylinder to the service port of stop valve. 2) Perform air purge of the pipe (or hose) coming from refrigerant gas cylinder. 3) Replenish specified amount of the refrigerant, while operating the air conditioner for cooling. Note: In case of adding refrigerant, comply with the quantity specified for the refrigerating cycle. CAUTION: When charging the refrigerant system with additional refrigerant, be sure to use liquid refrigerant. Adding gas refrigerant may change the composition of the refrigerant in the system and affect normal operation of the air conditioner. Also, charge the liquid refrigerant slowly, otherwise the compressor will be locked. To maintain the high pressure of the gas cylinder, warm the gas cylinder with warm water (under 104'F (40'C)) during cold season. But never use naked fire or steam. Stop valve Union Liquid pipe Union D C B A Indoor Outdoor unit unit Union Stop valve with Gas Union service port pipe erant gas D unit is for er ling valvekGauge manifold 4C36NA2 only. 410A) valve (for R410A) Charge hose ^(for R410A) erant gas cylinder for R410A with siphon Refrigerant (liquid) scale for refrigerant charging 4-3. LOCKING THE OPERATION MODE OF THE AIR CONDITIONER (COOL, DRY, HEAT) Description of the function: With this function, once the operation mode is locked to either COOUDRY mode 0 0 0 or HEAT mode, the air conditioner operates in that mode only. LED Changing the setting is required to activate this function. Please explain about o ❑ this function to your customers and ask them whether they want to use it. n /.SWi [How to lock the operation mode] 1) Be sure to turn off the main power for the air conditioner before making the setting. 2) Set the "3" of SW1 on the outdoor controller board to ON to enable this function. 3) To lock the operation mode in COOL/DRY mode, set the W of SW1 on the outdoor controller board to OFF. To lock the operation in HEAT mode, set the same switch to ON. 4) Turn on the main power for the air conditioner. SW1 SWt �0`0%0u� �fflunnuuj 1 2 3 4 5 6 1 2 3 4 5 6 COOUDRY HEAT 4-4. LOWERING THE OPERATION NOISE OF THE OUTDOOR UNIT Description of the function: With this function, the operating noise of the outdoor unit can be lowered by reducing the operation load, for example, during nighttime in COOL mode. However, please note that the cooling and heating capacity may lower if this function is activated. Changing the setting is required to activate this function. Please explain about this function to your customers and ask them whether they want to use it. [How to lower the operating noise] SW1 1) Be sure to turn off the main power for the air conditioner before making the setting. �°� 2) Set the "5' of SW1 on the outdoor controller board to ON to enable this function. 3) Turn on the main power for the air conditioner. Lower the operating noise 11 En-6 4-5. TEST RUN Test runs of the indoor units should be performed individually. Seethe installation manual coming with the indoor unit, and make sure all the units operate properly. If the test run with all the units is performed at once, possible erroneous connections of the refrigerant pipes and the indoor/outdoor unit connecting wires cannot be detected. Thus, be sure to perform the test run one by one. About the restart protective mechanism Once the compressor stops, the restart preventive device operates so the compressor will not operate for 3 minutes to protect the air conditioner. Wiring/piping correction function This unit has a wiring/piping correction function which corrects wiring and piping combination. When there is possibility of incorrect wiring and piping combination, and confirming the combination is difficult, use this function to detect and correct the combination by following the procedures below. Make sure that the following is done. Power is supplied to the unit. Slop valves are open. Note: During detection, the operation of the indoor unit is controlled by the outdoor unit. During detection, the indoor unit automatically stops operation. This is not a mal- function. Procedure Press the piping/wiring correction switch (SW871) 1 minute or more after turning on the power supply. Correction completes in 10 to 20 minutes. When the correction is completed, its result is shown by LED indication. Details are described in the following table. To cancel this function during its operation, press the piping/wiring correction switch (SW871) again. When the correction completed without error, do not press the piping/wiring correction switch (SW871) again. When the result is "Not completed", press the piping/wiring correction switch (SW871) again to cancel this function. Then, confirm the wiring and piping combination in a conventional manner by operating the indoor units one by one. The operation is done while the power is supplied. Make sure not to contact parts other than the switch, including the P.C. board. This may cause electric shock or burn by hot parts and live parts around the switch. Contacting the live parts may cause P.C. board damage. To prevent electronic control P.C. board damage, make sure to perform static elimination before operating this function. I• This function does not operate when the outside temperature is 32*F (0°C) or below. LED indication during detection: LEDt (Red) I LED2 (Yellow) LED3 (Green) Lighted I Lighted I Once Result of piping/wirinq correction function LED1 LED2 LED3 Result (Red) (Yellow) (Green) Completed Lighted Not lighted Lighted (Problem corrected or normal) Once Once Once Not completed (Detection failed) Refer to "SAFETY PRE - Other indications CAUTIONS WHEN LED BLINKS" located behind the service panel. 4-6. EXPLANATION TO THE USER Using the OPERATING INSTRUCTIONS, explain to the user how to use the air conditioner (how to use the remote controller, how to remove the air filters, how to remove or put the remote controller in the remote controller holder, how to clean, precautions for operation, etc.). Recommend the user to read the OPERATING INSTRUCTIONS carefully. When relocating or disposing of the air conditioner, pump down the system following the procedure below so that no refrigerant is released into the atmosphere. 1) Turn off the breaker. 2) Connect the gauge manifold valve to the service port of the stop valve on the gas pipe side of the outdoor unit. 3) Fully close the stop valve on the liquid pipe side of the outdoor unit. 4) Turn on the breaker. 5) Start the emergency COOL operation on all the indoor units. 6) When the pressure gauge shows 0.1 to 0 psi [Gauge] (0.05 to 0 MPa), fully close the slop valve on the gas pipe side of the outdoor unit and slop the operation. (Refer to the indoor unit installation manual about the method for stopping the operation.) If too much refrigerant has been added to the air conditioner system, the pressure may not drop to 0.1 to 0 psi [Gauge] (0.05 to 0 MPa), or the protection function may operate due to the pressure increase in the high-pressure refrigerant circuit. If this occurs, use a refrigerant collecting device to collect all of the refrigerant in the system, and then recharge the system with the correct amount of refrigerant after the indoor and outdoor units have been relocated. 7) Turn off the breaker. Remove the pressure gauge and the refrigerant piping. When pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes. The compressor may burst and cause injury if any foreign substance, such as air, enters the pipes. En-7