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19908 54TH AVE NE_BLD6753_2026
W'DAJFKJFN 0 DAIKIN ROOM AIR CONDITIONER INSTALLATION MANUAL R410A Split Series PERT_ R Installation manual Manuel d'installation Manual de instalacion MODELS 2MXS18WMVJU9 3MXS24WMVJU9 4MXS36WMVJU9 2MXL18WMVJU9 3MXL24WMVJU9 2MXLH18WVJU9 3MXLH24WVJU9 Contents Safety Considerations .................................... 1 5. Pressure test and evacuating system..........................10 Accessories ..................................................... 3 6. Refilling refrigerant......................................................11 Precautions for Selecting a Location 3 7. Charging with refrigerant.............................................11 Precautions on Installation ............................ 4 Wiring ............................................................... 12 Outdoor Unit Installation Diagram 4 Priority Room Setting ..................................... 14 Installation Space Requirements """"""""' S Night Quiet Mode setting .............................. 15 COOL/ HEAT mode lock [S15] ......... 15 Selecting a Location for Installation of the """"""" Indoor Units ..................................................... 5 When attaching the optional drain pan heater Connections connectionport) 6 (excluding 2MXLH, 3MXLH models) ................. 16 How to Use Reducers 7 Pump Down Operation ................................... 16 Outdoor Unit Installation 8 ................................ Trial Operation and Testing ............................ 17 1. Wiring error check.......................................................17 1. Installing the outdoor unit............................................ 8 2. Drain work................................................................... 8 2. Trial operation and testing g...........................................18 3. Test items....................................................................18 3. Flaring the pipe end..................................................... 8 4. Refrigerant piping........................................................ 9 The pictures in this document are for illustrative purposes only. Safety Considerations Refer also to the General Safety Considerations in the • If refrigerant gas leaks during installation,ventilate the separate booklet. area immediately. Refrigerant gas may produce toxic gas if it comes into contact with fire. Exposure to this gas could Read the precautions in this manual cause severe injury or death. 1 carefully before operating the unit. • After completing the installation work, check that the refrigerant gas does not leak throughout the system. Read these Safety Considerations for Installation carefully • Do not install unit in an area where flammable materials before installing an air conditioner or heat pump.After completing are present due to risk of explosions that can cause the installation, make sure that the unit operates properly during serious injury or death. the startup operation. • Safely dispose all packing and transportation materials Instruct the user on how to operate and maintain the unit. in accordance with federal/state/local laws or ordinances. Inform users that they should store this installation manual with Packing materials such as nails and other metal or the operation manual for future reference. wood parts, including plastic packing materials used for Always use a licensed installer or contractor to install this product. transportation may cause injury or death by suffocation. Improper installation can result in water or refrigerant leakage, electric shock,fire,or explosion. Meanings of DANGER,WARNING, CAUTION,and NOTE 0 WARNING Symbols: DANGER Indicates an imminently hazardous • Only qualified personnel licensed or certified in their jurisdiction must carry out the installation work.Installation situation which, if not avoided,will must be done in accordance with this installation manual. result in death or serious injury. Improper installation may result in water leakage, electric 0 WARNING ......••• Indicates a potentially hazardous shock, or fire. situation which, if not avoided, could • When installing the unit in a small room,take measures to keep result in death or serious injury. the refrigerant concentration from exceeding allowable safety QCAUTION ......•••• Indicates a potentially hazardous limits.Excessive refrigerant leaks, in the event of an accident in situation which, if not avoided, may a closed ambient space,can lead to oxygen deficiency. result in minor or moderate injury. • Use only specified accessories and parts for installation It may also be used to alert against work.Failure to use specified parts may result in water unsafe practices. leakage, electric shock,fire, or the unit falling. Q NOTE ............•••• Indicates situations that may result • Install the air conditioner or heat pump on a foundation in equipment or property damage strong enough that it can withstand the weight of the unit. accidents only. A foundation of insufficient strength may result in the unit falling and causing injuries. 0 DANGER • Take into account strong winds, typhoons, or earthquakes • Refrigerant gas is heavier than air and replaces oxygen. when installing. Improper installation may result in the unit A massive leak can lead to oxygen depletion, especially falling and causing accidents. in basements, and an asphyxiation hazard could occur • Make sure that a separate power supply circuit is provided leading to serious injury or death. for this unit and that all electrical work is carried out by • Do not ground units to water pipes, gas pipes,telephone qualified personnel licensed or certified in their jurisdiction wires, or lightning rods as incomplete grounding can cause according to local, state, and national regulations.An a severe shock hazard resulting in severe injury or death. insufficient power supply capacity or improper electrical Additionally, grounding to gas pipes could cause a gas leak construction may lead to electric shock or fire. and potential explosion causing severe injury or death. 1 0 English s N • Make sure that all wiring is secured,that specified wires (b)Tight--R410A does not contain any chlorine,does not W are used, and that no external forces act on the terminal destroy the ozone layer,and does not reduce the earth's connections or wires. Improper connections or installation protection again harmful ultraviolet radiation.R410A may result in fire. can contribute to the greenhouse effect if it is released. • When wiring, position the wires so that the service lid can Therefore take proper measures to check for the tightness be securely fastened. Improper positioning of the service of the refrigerant piping installation.Read the chapter lid may result in electric shock,fire, or the terminals Refrigerant Piping and follow the procedures. overheating. • Since R410A is a blend,the required additional refrigerant • Before touching electrical parts,turn off the unit. must be charged in its liquid state. If the refrigerant is • The circuit must be protected with safety devices in charged in a state of gas, its composition can change and accordance with local and national codes, i.e.a circuit breaker. the system will not work properly. • Securely fasten the outdoor unit service lid.If the service lid • The outdoor unit is for R410A.See the catalog for indoor is not installed properly,dust or water may enter the outdoor models that can be connected.Normal operation is not unit causing fire or electric shock. possible when connected to non-compatible indoor units. • When installing or relocating the system, keep the refrigerant • Remote controller(wireless kit)transmitting distance can be circuit free from substances other than the specified shorter than expected in rooms with electronic fluorescent refrigerant(R410A)such as air.Any presence of air or lamps(inverter or rapid start types). Install the indoor unit other foreign substance in the refrigerant circuit can cause far away from fluorescent lamps as much as possible. an abnormal pressure rise or rupture,which may result in • Indoor units are for indoor installation only.Outdoor units equipment damage and even injury. can be installed either outdoors or indoors. • Do not change the setting of the protection devices.If the • Do not install the air conditioner or heat pump in the pressure switch,thermal switch, or other protection device following locations: is shorted and operated forcibly, or parts other than those (a)Where a mineral oil mist or oil spray or vapor is specified by Daikin are used,fire or explosion may occur. produced,for example, in a kitchen. • Do not use means to accelerate the defrosting process(if Plastic parts may deteriorate and fall off or result in possible) or to clean, other than those recommended by water leakage. the manufacturer. (b)Where corrosive gas,such as sulfurous acid gas,is produced. • The appliance must be stored in a room without continuously Corroding copper pipes or soldered parts may result in operating ignition sources(for example:open flames, an refrigerant leakage. operating gas appliance or an operating electric heater). (c) Near machinery emitting electromagnetic waves. • Do not pierce or burn. Electromagnetic waves may disturb the operation of • Be aware that refrigerants may not contain an odor. the control system and cause the unit to malfunction. • Comply with national gas regulations. (d)Where flammable gas may leak,where there is carbon fiber,or ignitable dust suspension in the air,or where volatile flammables such as thinner or gasoline are handled. 0 CAUTION Operating the unit in such conditions can cause a fire. • Take adequate measures to prevent the outdoor unit • Do not touch the switch with wet fingers.Touching a switch from being used as a shelter by small animals.Small with wet fingers can cause electric shock. animals making contact with electrical parts can cause • Do not allow children to play on or around the unit to malfunctions, smoke, or fire.Instruct the user to keep the prevent injury. area around the unit clean. • Wear adequate personal protective equipment(protective • Servicing shall be performed only as recommended by the gloves, safety glasses,...)when installing, maintaining or manufacturer and licensed or certified in their jurisdiction. servicing the system. • The heat exchanger fins are sharp enough to cut.To avoid QI, NOTE injury,wear gloves or cover the fins while working around them. The outdoor unit should be positioned where the unit and • Do not touch the refrigerant pipes during and immediately power supply wires(breaker panel to outdoor unit)are at after operation as the refrigerant pipes may be hot or least 1 Oft(3m)away from any televisions or radios.(The cold, depending on the condition of the refrigerant flowing unit may cause interference with the picture or sound.) through the refrigerant piping,compressor, and other Depending on the radio waves, a distance of 1 Oft(3m) refrigerant cycle parts.Your hands may suffer burns or may not be sufficient to eliminate the noise. frostbite if you touch the refrigerant pipes.To avoid injury, Dismantling the unit,treatment of the refrigerant, oil and give the pipes time to return to normal temperature or, if additional parts must be done in accordance with the you must touch them, be sure to wear proper gloves. relevant local, state, and national regulations. • Install drain piping to ensure proper drainage.Improper drain • Only use tools for R410A, such as a gauge manifold, piping may result in water leakage and property damage. charge hose, gas leak detector, reverse flow check valve, • Insulate piping to prevent condensation. refrigerant charge base,vacuum gauge, or refrigerant • Be careful when transporting the product. recovery equipment. • Do not turn off the power immediately after stopping • If the conventional refrigerant and refrigerator oil are operation.Always wait for at least 5 minutes before turning mixed in R410A,the refrigerant may deteriorate. off the power.Otherwise,water leakage may occur. • This air conditioner or heat pump is an appliance that • Do not use a charging cylinder.Using a charging cylinder should not be accessible to the general public. may cause the refrigerant to deteriorate. • As maximum allowable pressure is 604psi (4.17MPa), the • Refrigerant R410A in the system must be kept clean,dry,and tight. wall thickness of field-installed pipes should be selected (a) Clean and Dry-- Foreign materials (including mineral in accordance with the relevant local, state, and national oils such as SUNISO oil or moisture)should be regulations. prevented from getting into the system. RN006-U 0 English 2 Accessories © Drain socket © Drain cap (1) Installation manual 1 1 (n 6 This is at the bottom of the packaging. QD Drain cap (2) OE Reducer assy QF Warranty 1 30 1 @ General safety consideration 1 Precautions for Selecting a Location 1) Choose a place solid enough to bear the weight and vibration of the unit,where the operating sound will not be amplified. 2) Choose a location where the air discharged from the unit or the operating sound will not cause a nuisance to the neighbors of the user. 3) Avoid locations, such as near bedrooms,where the operating sound may cause disturbance. 4) There must be sufficient space to carry the unit into and out of the site. 5) There must be sufficient space for air passage and no obstructions around the air inlet and the air outlet. 6) The site must not be prone to flammable gas leaks in the surrounding area. 7) In coastal areas or other places with salty atmosphere or one containing sulfate gas,corrosion may shorten the life of the air conditioner. 8) Since water will flow from the drain of the outdoor unit, do not place anything under the unit which must be kept away from moisture. 9) A location where flammable gas does not leak. Position at least 6-5/8ft(2m)from propane gas cylinders. NOTE Cannot be installed suspended from a ceiling or stacked. Q! CAUTION When operating the air conditioner in a low outdoor ambient temperature, be sure to follow the instructions described below. •Construct a large canopy. • To prevent exposure to wind, install the outdoor unit with its suction side facing the •Construct a pedestal. wall - I • Never install the outdoor unit at a site where the suction side may be exposed -_ directly to wind. • To prevent exposure to wind, it is recommended to install a baffle plate on the air discharge side of the outdoor unit. s • In heavy snow areas, select an installation site where the snow will not affect the / unit. • If there is a likelihood of snow accumulating on the outdoor unit, attach a snow Install the unit high enough off the ground to prevent burying protection hood. in snow. • In high humidity areas or heavy snow areas, it is recommended to attach a drain pan heater to prevent ice build-up from the bottom frame. 3 0 English Precautions on Installation N • Check the strength and level of the installation surface so that the unit does not cause c any operating vibrations or noise after installation. W • Fix the unit in place securely using foundation bolts, as in the figure.(Prepare 4 sets —t C. of 5/16 inch (M8)or 3/8 inch (M10)foundation bolts, nuts and washers;all sold `Y' separately.) LE • It is best to screw in the foundation bolts until their ends are 3/4 inch (20mm)from the foundation surface. EM Outdoor Unit Installation Diagram Q CAUTION • Do not connect the embedded branch piping and the outdoor unit when only carrying out piping work without connecting the indoor unit in order to add another indoor unit later. Make sure no dirt or moisture gets into either side of the embedded branch piping. Refer to"4.Refrigerant piping"on page 9 for details. • It is not possible to have only 1 indoor unit connected. Be sure to connect at least 2 indoor units. Refrigerant piping must be protected from physical damage. Install a plastic cover or equivalent. Wrap the insulation pipe with If strong wind blows into the air discharge finishing tape from bottom to top. side from the front and there is a danger that the fan may be damaged,change the orientation of the air discharge side of the Allow 11-13/16"(300mm)of work outdoor unit or use an air direction adjustment grille(sold separately). space below the ceiling surface. Top plate 9-13/16 250 from wall Allow space for piping and electrical servicing. If there is a danger of the unit falling or ° /Service lid overturning,fix the unit with foundation ° bolts,or with wire or other means. ° o � i i o i In sites with poor drainage,use block o i Stop valve cover bases for the outdoor unit. Adjust foot height until the unit is level. Otherwise,water leakage or pooling of O —-®• water may occur. 23 518 600 (Foot bolthoie (F - 0 0 centers) 4-t5/1 ro 6(125 Level mounting m units side) base(available unit:inch(mm) separately) Appearance of outdoor units may differ from some models. Also insulate the connection on the outdoor unit. Clamping material Use tape or insulating material on all connections to prevent air from Insulation tube getting in between the copper piping and the insulation tube. / Be sure to do this if the outdoor unit is installed at a higher elevation than Tape Stop valve cover any of the indoor units connected to it. 0 English 4 Installation Space Requirements • Position the unit on a horizontal surface.Any tilt in the unit should be 3°or less to the horizontal. • Where a wall or other obstacle is in the path of outdoor unit's intake or exhaust airflow,follow the installation space requirements below. • For any of the below installation patterns,the wall height on the outlet side should be 47-1/4 inch (1200mm)or less. • Secure as much installation space around the unit as the location allows, as more space will result in more efficient operation. Wall facing one side Walls facing two sides More than More than 3-15/16(100) 13-3/4(350) More than More than More 3-15/16(100) (3-3/4 47-1/4 (1200) than (350) 3-15/16 More than 100) or less `� � ( 13-3/4(350) More than / More than 1-15/16(50) 1-15/16(50) � � � Top view Side view Walls facing three sides OR, } When installed as in the figure on the left, it is recommended to either More than 3-15/16(100) change the orientation of the outdoor unit outlet side or use the air direction adjustment grille (sold separately). More than 1-15/16(50) More than 13-3/4(350) i Top view unit:inch(mm) Selecting a Location for Installation of the Indoor Units • The maximum allowable length of refrigerant piping, and the maximum allowable height difference between the outdoor and indoor units, are listed below. • Refrigerant piping must be kept to a minimum. The suggested shortest pipe length per room is 1 Oft(3m), in order to avoid noise from the outdoor unit and vibration. (Mechanical noise and vibration may occur depending on how the unit is installed and the environment in which it is used.) Outdoor unit capacity class 2MXS*,2MXL* 3MXS*,4MXS*,3MXL* Piping to each indoor unit 82ft(25m)max. 1Oft(3m)min. Total length of piping between all units 164ft(50m)max. 230ft(70m)max. Indoor unit Outdoor unit Level difference: 49-1/4ft(15m) Level max. Level difference: Level difference: Outdoor unit 49-1/4ft(15m) difference: 24-5/8ft(7.5m) [U max. 24-5/8ft(7.5m) El max. max. Indoor unit If the outdoor unit is positioned higher than the indoor units. If the outdoor unit is positioned lower than one or more indoor units. 5 0 English Connections (connection port) N Install the indoor unit according to the table below,which shows the relationship between the class of indoor unit and the = corresponding port. w The total indoor unit class that can be connected to this unit: 2MXS*, 2MXL* -Up to 24000 Btu 3MXS*, 3MXL* -Up to 39000 Btu 4MXS* -Up to 48000 Btu The line set piping size is determined by the size of the indoor unit fittings. Reducers are used at the outdoor unit to accommodate the correct gas line pipe size. Port 2MXS*,2MXL* 3MXS*,3MXL* 4MXS* A 07, 09, 12 07, 09, 12 07, 09, 12 B 07, 09, 12, 15 07, 09, 12 , 15 , 18 07, 09, 12, 15 , 18 c 07, 09, 12 , 15 , 18 07, 09, 12, 15 , 18 0 0 0 0 0 07, 09, 12, 15 , 18 , 24 O : Use a reducer to connect pipes. o : Use No. 1 and 3 reducers # : Use No.2 and 4 reducers o : Use No.5 and 6 reducers Refer to"How to Use Reducers"on page 7 for information on reducer numbers and their shapes. ■English 6 How to Use Reducers No.1 No.2 No.3 No.4 No.5 No.6 �5/8" �1/2" �5/8" �1/2" 05/8" 05/8" —01/2" —03/8" —01/2" —03/8" —03/8" —03/8" Gasket(1) Gasket(2) Reduce and gasket • Use the reducers supplied with the unit as described below. (1) Connecting a pipe of 01/2 inch (12.7mm) to a gas pipe connection port for 05/8 inch (15.9mm) No. 1 )!K nit piping Be sure to attach No.3 t(for�5/8 inch(15.9mm)) the gasket. Connection port of outdoor unit (2) Connecting a pipe of 03/8 inch (9.5mm)to a gas pipe connection port for�1/2 inch (12.7mm) No.2 CNo Flare nut(for�1/2 inch(12.7mm)) Be sure to attach the gasket. Connection port of outdoor unit (3) Connecting a pipe of 03/8 inch (9.5mm)to a gas pipe connection port for�5/8 inch (15.9mm) Flare nut(for�3/8 inch(9.5mm)) No.6 No.5 Be sure to attach the gasket. Connection port of outdoor unit • When using the reducer packing shown above, be careful not to overtighten the nut, or the smaller pipe may become damaged.(Apply about 2/3 to 3/3 the normal torque.) • Apply a coat of refrigeration oil to the threaded connection port of the outdoor unit where the flare nut comes in. • Use an appropriate wrench to avoid damaging the connection thread by overtightening the flare nut. Flare nut tightening torque �3/8 inch(9.5mm) 24-1/8—29-1/21bf•ft(32.7-39.9N•m) �1/2 inch(12.7mm) 36-1/2—44-1/21bf•ft(49.5-60.3N•m) �5/8 inch(15.9mm) 45-5/8—55-5/81bf•ft(61.8-75.4N•m) 7 0 English Outdoor Unit Installation N C 1 . Installing the outdoor unit W 1) When installing the outdoor unit, refer to"Precautions for Selecting a Location"on page 3 and the"Outdoor Unit Installation Diagram"on page 4. 2) If drain work is necessary,follow the procedures below. 2. Drain work QCAUTION ©Drain cap(1) In cold areas, do not use a drain socket, drain caps(1,2) 0 Drain cap(2) and a drain hose with the outdoor unit.(Drain water may ��� A freeze, impairing heating performance.) ©Drain o outlet side @ Drain cap(2)socket Air o • If the drain port is covered by a mounting base or floor C, surface, place additional foot bases of at least 1-1/4 inch (30mm) in height under the outdoor unit's feet. Bottom frame 1) Attach©drain cap (1) and(@ drain cap(2). / Drain cap 2) Attach©drain socket. 07i � Bottom frame • When attaching©drain socket to the bottom �Q ©Drainsocket frame, make sure to connect the drain hose to the Pinch the bottom frame in. Hose(available commercially, drain socket first. innerdia.5/6"(16mm)) 3. Flaring the pipe end Q WARNING • Do not apply mineral oil to the flare. • Prevent mineral oil from getting into the system as this would reduce the service life of the units. • Never use piping which has been used for previous installations.Only use parts which are delivered with this unit. • Never install a dryer to this R410A unit in order to guarantee its service life. • The drying material may dissolve and damage the system. • Improper flaring may result in refrigerant gas leakage. Q CAUTION Do not reuse joints which have been used once already. 1) Cut the pipe end with a pipe cutter. Check The flare's inner The pipe end must be 2) Remove burrs with the cut surface facing + surface must be 1 evenly flared in a downward, so that the filings do not enter the flaw-free. perfect circle. pipe. When flaring,do Make sure that 3) Put the flare nut on the pipe. Cut exactly at not over-tighten the flare nut is fitted. right angles. Remove burrs. and crack. 4) Flare the pipe. 5) Check that the flaring has been done correctly. Flaring Set exactly at the position shown below. y A Flare tool for R410A Conventional flare tool Clutch-type Clutch-type(Rigid-type)Wing-nut type(Imperial-type) Die A 0-0.020 inch 0.039-0.059 inch 0.059-0.079 inch (0-0.5mm) (1.0-1.5mm) (1.5-2.Omm) 0 English 8 Outdoor Unit Installation 4. Refrigerant piping Qt. CAUTION • Use the flare nut fixed to the main unit.(This is to prevent the flare nut from cracking as a result of deterioration over time.) • To prevent gas leakage, apply refrigeration oil only to the inner surface of the flare.(Use refrigeration oil for R410A.) • Use a torque wrench when tightening the flare nuts to prevent damage to the flare nuts and gas leakage. • Align the centers of both flares and tighten the flare nuts 3 or 4 turns by hand,then tighten them fully with a spanner and a torque wrench. Apply oil Tighten Apply refrigeration Torque wrench Do not apply refrigeration oil only to the inner oil to the outer surface. surface of the flare. Flare nut Spann4nion Do not apply refrigeration oil to the flare nut to avoid tightening / Piping uwith excessive torque. Tightening torque Piping connection Valve cap Service port cap Flare nut Width across flats 8-10-7/81bf•ft Gas side Liquid side 3/4 inch(19mm) 7/8 inch(22mm) (10.7-14.7N•m) 3/8 inch(9.5mm) 1/2 inch(12.7mm) 5/8 inch(15.9mm) 1/4 inch(6.4mm) 12-5/8-15-3/81bf•ft 16-20-1/41bf•ft 24-1/8-29-1/21bf•ft 36-1/2-44-1/21bf•ft 45-5/8-55-5/81bf•ft 10-1/2-12-3/41bf•ft (17.0-20.9N•m) (21.6-27.4N•m) (32.7-39.9N•m) (49.5-60.3N•m) (61.8-75.4N•m) (14.2-17.2N•m) Cautions on pipe handling wall • Protect the open end of the pipe from dust and moisture. ; place sure to p p'p 1 i place a cap. • All pipe bends should be as gentle as possible. Use a pipe bender for bending. Rain If no flare cap is available,cover 0 the flare mouth with tape to keep dirt and water out. 1777711 Selection of copper and heat insulation materials Gas pipe When using commercial copper pipes and fittings, observe the following: Liquid pipe • Insulation material: Polyethylene foam :0 1 Heat transfer rate: 0.041 to 0.052W/mK(0.024 to 0.030Btu/fth'F) O (0.035 to 0.045kcal/mh°C) Be sure to use insulation that is designed for use with HVAC Systems. L Gas pipe Liquid pipe • ACR Copper only. insulation insulation • Be sure to insulate both the gas and liquid piping and observe the insulation Finishing tape Drain hose dimensions as below. Piping size Minimum bend radius Piping thickness Thermal insulation size Thermal insulation thickness O.D.3/8 inch 1-3/16 inch(30mm) I.D. 15/32-19/32 inch (9.5mm) or more 0.031 inch(0.8mm) (12-15mm) O.D. 1/2 inch 1-9/16 inch(40mm) (C1220T-0) I.D.9/16-5/8 inch Gas side (12.7mm) or more (14-16mm ) 13/32 inch O.D.5/8 inch 1-15/16 inch(50mm) 0.039 inch(1.0mm) I.D.5/8-13/16 inch (10mm)Min. (15.9mm) or more (C1220T-0) (16-20mm) Liquid side O.D. 1/4 inch 1-3/16 inch(30mm) 0.031 inch(0.8mm) I.D.5/16-13/32 inch (6.4mm) or more (C1220T-0) (8-10mm) • Use separate thermal insulation pipes for gas and liquid refrigerant pipes. • Using finishing tape, bundle and wrap the indoor unit piping and drain hose together so that the drain hose is below the other piping. 9 0 English t N C 5. Pressure test and evacuating system W AWARNING • Make sure that air or any matter other than refrigerant(R410A) does not get into the refrigeration cycle. • If refrigerant gas leaks should occur, ventilate the room as soon and as much as possible. • R410A, as well as other refrigerants, should always be recovered and never be released directly into the environment. • Use a vacuum pump for R410A exclusively.Using the same vacuum pump for different refrigerants may damage the vacuum pump or the unit. ACAUTION It is highly recommended that you do not open/close the stop valves when the outdoor temperature is below—5°F(-21°C)as this may result in refrigerant leakage. • When piping work is complete, it is necessary to perform a pressure test High-pressure and evacuate system with a vacuum pump. Compound Pressure valve r • If using additional refrigerant, purge the air from the refrigerant pipes and pressure gauge mete \ to indoor unit using a vacuum pump,then charge additional refrigerant. c • Use a hexagonal wrench (3/16 inch (4mm))to operate the stop valve rod. Gauge • All refrigerant pipe joints should be tightened with a torque wrench to the ve specified tightening torque. / caps Gas Low-pressure stop valve valve U Liquid Charging stop hoses \ valve Vacuum pump Service port 1) Pressurize the liquid pipe and gas pipe from the service ports of each stop valve to 604psi (4.17MPa) (do not pressurize more than 604psi (4.17MPa))for 1 hour minimum, 24 hours recommended. If there is a pressure drop, check for leaks, make repairs and perform the pressure test again. 2) Connect the gauge manifold's charging hoses to the service ports of each stop valve. 3) Fully open the low-pressure valve (Lo) and the high-pressure valve(Hi) on the gauge manifold. 4) Evacuate system using vacuum pump to below 500 microns for 1 hour minimum. 5) Close the low-pressure valve (Lo) and the high-pressure valve (Hi) on the gauge manifold and stop vacuum pump. (Maintain this condition for 4-5 minutes to make sure that the compound pressure gauge pointer does not swing back.)" 6) Remove the valve caps from the liquid stop valve and gas stop valve. 7) To open the liquid stop valve,turn the rod of the valve 90o counter-clockwise using a hexagonal wrench. Close it after 5 seconds, and check for gas leakage. Using soapy water, check for gas leakage from the indoor unit's flare and outdoor unit's flare and valve rods. After the check is complete,wipe all soapy water off. 8) Disconnect the charging hoses from the service ports,then fully open the liquid and gas stop valves. (Do not attempt to turn the valve rods further than they can go.) 9) Tighten the valve caps and service port caps for the liquid and gas stop valves with a torque wrench to the specified torques. Refer to"4.Refrigerant piping"on page 9 for details. *' If the compound pressure gauge pointer swings back,the refrigerant may have water content or there may be a loose pipe joint. Check all pipe joints and retighten nuts as needed, then repeat steps 3)through 5). 0 English 10 Outdoor Unit Installation 6. Refilling refrigerant Check the type of refrigerant to be used on the machine nameplate. Precautions when adding R410A Fill from the liquid pipe in liquid form. R410A is a mixed refrigerant, so adding it in gas form may cause the refrigerant composition to change, preventing normal operation. 1) Before filling, check whether the cylinder has a siphon attached or not. (It should have something like"liquid filling siphon attached"displayed on it.) Filling a cylinder with an attached siphon Filling other cylinders Stand the cylinder upright when filling. Turn the cylinder upside-down when filling. There is a siphon pipe inside, so the cylinder need not be upside-down to fill with liquid. • Be sure to use the R410A tools to ensure pressure and to prevent foreign objects from entering. 7. Charging with refrigerant 0 CAUTION Even though the stop valve is fully closed,the refrigerant may slowly leak out;do not leave the flare nut removed for a long period of time. • If the total length of piping for all rooms exceeds the figure listed below, additionally charge with 0.21 oz/ft(20g/m)of refrigerant(R410A)for each additional piping length. Be sure to add the proper amount of additional refrigerant. Failure to do so may result in reduced performance. Outdoor unit capacity class 2MXS*,2MXL* 3MXS*,4MXS*,3MXL* Total length of piping for all rooms 98-3/8ft(30m) 131-1/4ft(40m) 11 ■English Wiring N C 0 WARNING W • Do not ground units to water pipes, gas pipes,telephone wires, or lightning rods as incomplete grounding can cause a severe shock hazard resulting in severe injury or death. Additionally, grounding to gas pipes could cause a gas leak and potential explosion causing severe injury or death. • Do not use tapped wires, extension cords, or starburst connections, as they may cause overheating, electric shock, or fire. • Do not use locally purchased electrical parts inside the product.(Do not branch the power for the drain pump, etc.,from the terminal block.) Doing so may cause electric shock or fire. • The circuit must be protected with safety devices in accordance with local and national codes, i.e.a circuit breaker. • Use an all-pole disconnection type circuit breaker with at least 1/8 inch (3mm) between the contact point gaps. • When carrying out wiring, take care not to pull at the conduit. • Do not connect the power wire to the indoor unit. Doing so may cause electric shock or fire. • Do not turn on the circuit breaker until all work is completed. Q CAUTION Precautions to be taken for power supply wiring Recommend stranded cable for interunit wiring.Local code always supersedes recommendation. • For stranded wires, make sure to use the round crimp-style terminal for Round crimp-style connection to the power supply terminal block. Place the round crimp- terminal style terminals on the wires up to the covered part and secure in place. B Stranded wire Flat washer Screw Screw Screw Round crimp-style A Zterminal Flat washer \ Round crimp-style Round �Flat washer terminal crimp-style Good Wrong terminal Arrow view A • If solid core wire must be used, be sure to curl the end of the lead. Improper work may cause heat and fire. 9� EE A MM9 rWrong thStrip wire end shockto this point.Good Good Wrong Stripping wire at terminal block 0 English 12 Wiring [Method of Mounting Conduit] •When connecting indoor units for 3 rooms or more, open knockout holes without deforming the conduit mounting plate. 1) Dismount the service lid by removing the 2 screws. 2) Slide the protection plate up and remove it. 3) Pass wires through the conduit and secure them with a lock nut. Protection plate Conduit Conduit mounting plate /� Service lid� Lock nut , � =�II� Knockout holes � ; o 0 � Conduit mounting plate t '-1-' 0= —� m � I m � Stop valve cover [Wiring procedure] Outdoor unit 1) Strip the insulation from the wire (3/4inch (20mm)). Room Room power supply Note:Take care to ensure that all wiring A B between indoor unit and outdoor unit has a 2) Connect the inter-unit wires between the indoor and z s T'DR onsistent connection.Any splices can ause communication errors. outdoor units so that the terminal numbers match. Room Tighten the terminal screws securely. It is recommended c 3 that a slot-head screwdriver be used to ti hten the Follow local codes gfor wiring and safety screws. devices between outdoor unit and 60Hz 208/230V 3) Be sure to match the symbols for wiring and piping. power source. D4) Pull the wire lightly to make sure that it does not Indoor unitC Ground disconnect. Room A5) Pass the wiring through the cutout on the bottom of the 2 B protection plate and attach the protection plate. Recommend using AwG,a,stranded and insulated wire for connections between indoor 6 After completing the work, reattach the service lid to its and outdoor units. p g Local code always supersedes recommendation. original position. O O Room A Room B power supply ® o Room C ®� O Room D Shape the wires so that there is no lifting of the protection plate or other structural parts. O O O Use the specified wires and connect them securely. Ground This air conditioner must be grounded. For grounding,follow all local, and state electrical codes. 13 0 English Priority Room Setting N • To use priority room setting, initial settings must be made when the unit is installed.Explain the priority room setting, as iw described below,to the user, and confirm whether or not the user wants to use priority room setting. Setting it in the guest and living rooms is convenient. About the priority room setting function The indoor unit for which priority room setting is applied takes priority in the following cases. 1) Operation mode priority The operation mode of the indoor unit which is set for priority room setting takes priority. If the set indoor unit is operating, all other indoor units do not operate and enter standby mode, according to the operation mode of the set indoor unit. 2) Priority during powerful operation If the indoor unit which is set for priority room setting is operating at powerful,the capabilities of other indoor units will be somewhat reduced.Power supply gives priority to the indoor unit which is set for priority room setting. 3) Quiet operation priority Setting the indoor unit to quiet operation will make the outdoor unit run quietly. Setting procedure Slide the priority room setting switch (SW4)to the on side for the switch that corresponds to the piping connected to the indoor unit to be set. (In the figure below, it is room A.) Once the settings are complete, switch the power on. Be sure to set only one •• Service PC-board Remove a o � the switch ° cover o E o O v Priority room setting switch(SW4) o o � Screw E �� X EM° ON OFF E30a O �y II � E O O o O =a D ®®®®®®®®®® ® coop C ® ®® O 0 o B O ®®®®®®®®®® A O O 0 English 14 Night Quiet Mode setting • If night quiet mode is to be used, initial settings must be made when the unit is installed. Explain night quiet mode, as described below,to the user, and confirm whether or not the user wants to use night quiet mode. About night quiet mode The night quiet mode function reduces operating noise of the outdoor unit at nighttime.This function is useful if the user is worried about the effects of the operating noise on the neighbors. However, cooling capacity will be reduced when operating in night quiet mode. Service PC-board Setting procedure Turn the night quiet mode switch (SW6-1)to on. �' Remove o � the switch° Night quiet mode cover o0 E O =c setting switch (SW6-1) o Screw 0 ON OFF O o; � r�Q 2 O � 1 COOL HEAT O COOL/ HEAT mode lock [S15] • Use the S15 connector to set the unit to only cool or heat. Setting to only heat(H):short-circuit pins 1 and 3 of the connector[S15] Setting to only cool (C):short-circuit pins 3 and 5 of the connector[S15] The following specifications apply to the connector housing and pins. JST products Housing: VHR-5N Pin: SVH-21T-P1.1 Note that forced operation is also possible in COWHEAT mode. COOL mode(C) HEAT mode(H) Tee E O 1 3 5 I I I I 07;F 000 0 15 0 English When attaching the optional drain pan N heater (excluding 2MXLH , 3MXLH models) W AWARNING Service PC-board Do not remove the switch cover unless the power has been turned off.(Risk of electric shock) OFFrRemove1)Attach the drain pan heater in accordance with the installation manual included with the drain pan heater. 02) Using a tool such as nippers, cut the jumper(JDP)on the service0 PC-board. 0 Ell, 0 EC 1, °° Jumper(J_DP) 0 � �O� 00 Pump Down Operation In order to protect the environment, be sure to pump down when relocating or disposing of the unit. 1) Remove the valve caps from liquid stop valve and gas stop valve. Close 2) Begin forced cooling operation. �—,► Gas stop valve 3)After 3 to 5 minutes, close the liquid stop valve with a hexagonal Hexagonal wrench. wrench 4)After 3 to 4 minutes, close the gas stop valve and stop forced cooling operation. Liquid stop 5)Attach the valve caps once procedures are complete. valve t7 Valve caps Forced cooling operation AWARNING Do not remove the switch cover unless the power has been turned off.(Risk of electric shock) 1)Turn off the power. -Switch SW5 and SW6 to off. 2) Remove the service lid (2 screws). 3) Remove the service PC-board switch cover ON OFF (1 screw). r�q 2 4)Switch SW5 and SW6 to off. Service PC-boards SW6 5)Turn the operation mode switch (SW2)to 11 V 1 COOL. 6) Screw the service PC-board switch cover Y Remove ON OFF back on (1 screw). ° � the switch ° /cover r�a 4 o E 7)Turn on the power. °o 0 ° Screw � V 3 Em 8) Push the forced operation switch (SW1) / 0 A SW5 above the service PC-board cover. The 2 operation will start.) 0 , • Forced cooling operation will stop 0 v'_;1 li 1 � automatically after about 11 to 15 minutes. 0 To stop the operation, push the forced 0 Operation mode switch(SW2) operation switch (SWII). o -Set to COOL. �ti♦ COOL HEAT _j=00 i Forced operation switch(SW1) 0 English 16 Trial Operation and Testing • Before starting the trial operation, measure the voltage at the primary side of the circuit breaker. • Check that all liquid and gas stop valves are fully open. • Check that piping and wiring all match.The wiring error check can be conveniently used for underground wiring and other wiring that cannot be directly checked. However, if the outside air temperature is . - the wiring error check function will not operate. • When trial operation is conducted directly after the circuit breaker is turned on, in some cases no air will be output for about 15 minutes in order to protect the air conditioner. 1 . Wiring error check Service PC-board This product is capable of automatic correction of wiring errors. Press the wiring error check switch on the outdoor unit service PC-board. However,the wiring error check switch will not function for 3 minutes after the safety breaker is turned 0 on.About 15-20 minutes after the switch is pressed,the errors in the connection wiring a will be corrected. 10 20 30 The service monitor LEDs indicate whether or not correction is possible, as 40 shown in the table below.For details on how to read the LED display, refer to 50 0 the collective indications label on the reverse side of the top plate or the service manual. Wiring error =� check switch 00J If self-correction is not possible, check the indoor unit wiring and piping in the usual (sW3� manner. LED 1 2 3 4 Message M Flashing Automatic correction impossible Status Flashing • - . - Automatic correction completed (One or more of LEDs 1 to 4 are ON) Abnormal stop[Note. 3] Wiring correct example Terminal block A B *The figure at left shows branch wiring. From Room C From Room B From Room D From Room A to the"kitchen" to the"living room" to the"children's room" to the"bedroom" IG Wiring error check LED lighting sequence after a wiring correction. Order of LED flashing:2— 1 —3—4 NOTE 1) For two rooms, LED 3,4 and 5 are not displayed, and for three rooms, LED 4 and 5 is not displayed, and for four rooms, LED 5 is not displayed. 2)After wiring error check operation is completed, LED indication will continue until ordinary operation starts.This is normal. 3) Follow the product diagnosis procedures.(Details of product error diagnosis are listed on the reverse side of the top plate.) 17 0 English t N 2. Trial operation and testing W • During the trial operation,first check the operation of each unit individually.After this, check the simultaneous operation of all indoor units.Check both COOL and HEAT operations. 2-1. Measure the supply voltage and make sure that it is within the specified range. 2-2. In COOL operation, select the lowest programmable temperature; in HEAT operation, select the highest programmable temperature. • When operating the air conditioner in COOL operation in winter, or HEAT operation in summer, activate trial operation mode by following the instructions in the installation manual for the indoor unit. 2-3. Carry out the trial operation following the instructions in the operation manual to ensure that all functions and parts, such as the movement of the flap, are working properly. • To protect the air conditioner, restart operation is disabled for 3 minutes after the system has been turned off. • When trial operation is conducted in HEAT operation directly after the circuit breaker is turned on, in some cases no air will be output for about 3 to 20 minutes in order to protect the air conditioner. • During COOL operation,frost may form on the gas stop valve or other parts.This is normal. 2-4. After running the unit for about 20 minutes, measure the temperatures at the indoor unit inlet and outlet. • If the measurements are above the values shown in the table below,then they are normal. COOL operation HEAT operation Temperature difference between About 14°F(8°C) About 36°F(20°C) inlet and outlet (When running in one room) 2-5. After trial operation is complete, set the temperature to a normal level (78°F to 820F (26°C to 28°C) in COOL operation, 680F to 750F (20°C to 24°C) in HEAT operation). • The air conditioner draws a small amount of power in its standby mode. If the system is not to be used for some time after installation, shut off the circuit breaker to eliminate unnecessary power consumption. • If the circuit breaker trips to shut off the power to the air conditioner,the system will restore the original operation mode when the circuit breaker is opened again. 3. Test items Test item Symptom Check Indoor and outdoor units are installed securely. Fall,vibration, noise No refrigerant gas leaks. Incomplete cooling/heating function Refrigerant gas and liquid pipes and indoor drain hose extension Water leakage are thermally insulated. Draining line is properly installed. Water leakage System is properly grounded. Electrical leakage Only specified wires are used for all wiring, and all wires are No operation or burn damage connected correctly. Indoor or outdoor unit's air inlet or air outlet are unobstructed. Incomplete cooling/heating function Stop valves are opened. Incomplete cooling/heating function Pipes and wires are connected to the corresponding terminal Incomplete cooling/heating function blocks/connection ports for the connected unit. The priority room setting is set for only 1 room. The priority room setting will not function. Indoor unit properly receives remote control commands. No operation 0 English 18 C US _ �/STEO j OA/K/N NORTHAMER/CA LLC I ntertek ❑L : 1 19001 Kermier Road Two-dimensional bar code Houston,TX 77484 is a manufacturing code. https://www.northamerica-daikin.com/ 3P675080-1 M21 B361 (2203) xT RESIDENTIAL MECHANICAL APPLICATION Community and Economic Development City of Arlington•18204 59th Ave NE•Arlington,WA 98223•Phone(360)403-3551 This application is for new, addition, altered or replaced mechanical installation and new or altered gas piping. Please fill out all pages of this application and include all information. Type of Permit: ❑ New Installation ® Addition/Alteration/Repair ❑ Gas Piping Property Address: 19908 54th Dr NE Project Valuation: 12,198 P Lot#: NA Parcel ID No.: NA Preferred Contact: ❑ Owner S Contractor Project Description: Install Ductless Heat Pump Owner Name: John Knisley Home No.: (425) 220-5073 ohnknisle hotmaii.com (425) 220-5073 Email Address: � y@ Cell No.: Mailing Address: 19908 54th Dr NE City:Arlington State: WA Zip:98223 Cool Heat 365 425 293 1289 Contractor Name: Office No.: Email Address: coolheat365@yahoo.com Cell No.: Mailing Address: 9204 176th St NW City: Stanwood State: WA zip: 98292 L&I Contractor License Number: COOLHH382405 Expiration Date: 9-25-26 • New gas piping requires a pressure test hooking to any appliance • Sediment traps (drips)are required on all gas lines • Gas lines are required to be supported/secured every 6 to 8 feet • Proper Combustion air and venting required for all appliances • A shut-off valve is required within 6 feet of all appliances Gas Piping Information Not Applicable ❑CSST ❑ Brass ❑ Other Proposed Piping Material: ❑ Black Steel ❑ Galvanized Steel Proposed Piping Size: ❑ Y2" ❑ 5/a" ❑ 3/4" ❑ 1" ❑ 1'/2" ❑ 2" Distance from Meter to furthest Appliance: Total BTU's of all Appliances: Res dent mechall i l pe rts ill be as��d a base fe fee pel. uanit,and inspectrion fee elan �'�t` �e,�-�� ° i re tatl�.f�►�r�+�t" i�l: elr�al� :'�'_ Type of Fixture No.of Cost per Unit Subtotal Model No. Units Additional Plan Review fees x $75.00 = Air Conditioning Unit<_100 Btu h x $15.00 Air Conditioning Unit> 100 Btu h x $25.00 - Air Conditioning Unit>500 Btu/hp x $50.00 = Air Handling Units x $15.00 = Base Mechanical Fee 1 x $25.00 = $25.00 Boiler<100Btu h>3h x $15.00 = REV03.2022 Pagel of 3 )�es>�de>itYal me+ bncai perllnts: be�� ss�ec +: fey,fE' p.e �n� ,arrd>< spa re! eIr ' i10 - max 1 + rid + r3r - Boiler>1 million Btu h<50h x $25.00 = Boiler>1.5 million Btu h<50h x $50.00 = Boiler>100Btu h 3-15h x $15.00 - Boiler>500Btu h 15-30hp x $25.00 = Commercial Hoods-Type I x $25.00 = Commercial Hoods-Type II x $50.00 = Diffusers x $15.00 = Dryer Ducting x $15.00 = Ductwork(drawings required) x $25.00 = Evaporative Coolers x $ 15.00 - Exhaust Ventilation Fans x $15.00 Fireplace/Insert/Stove x $15.00 = Forced Air Heat<-100 Btu h x $15.00 - Forced Air Heat>100 Btu h x $25.00 = Gas Clothes Dryer x $15.00 - Gas Fired Air Conditioning Units 100 Btu h x $ 15.00 = Gas Fired Air Conditioning Unit> 100 Btu h x $25.00 = Gas Fired Air Conditioning Unit>500 Btu/hp x $50.00 = Gas Pi in s 5 units x $ 15.00 - Gas Piping for each additional unit >5 x $2.00 = Heat Exchangers x $15.00 = Heat Pump-Condensing Unit 1 x $25.00 = 25.00 Hot Water Heat Coils x $15.00 = Miscellaneous Appliance-regulated by x $15.00 = mechanical code,not otherwise specified Package Units<-100 Btu > 100 Btu x $25.00 $50.00 - Range/Cook top-Gas Fired x $15.00 Refrigeration Unit s100Btu h x $15.00 = Refrigeration Unit>100Btu h x $25.00 - Refrigeration.Unit>500Btu h x $50.00 Re-inspection fee x $75.00 - Residential Range Hood x $15.00 = Unit Heaters:5 100 Btu h x $15.00 - Unit Heaters>100 Btu h x $25.00 = Variable Air Volume Boxes(part of Air x $ 10.00 - Conditioning System) Wall Heaters-Gas Fired x $25.00 = Water Heater-Gas Fired x $25.00 Permit Fee 25.00 Inspection Fee $75.00 Processing/Technology Fee $25.00 Total 125.00 1 hereby certify that the above information is correct and that the construction on,and the occupancy and the use of the above described property will be in accordance with the laws,rules and regulation of the State of Washington. L RustyReed 10/2/25 Signature Print Name Date REV2.2024 Page 2 of 3 Permit#: 6753 Permit Date: 10/02/25 Permit Type: RESIDENTIAL MECHANICAL Project Nam e Knisley Applicant Nam a Cool Heat 365 Applicant Address: 9204 176th St NW Applicant, City, State, Zip: Stanwood Contact: Rusty Reed Phone: 4252931289 Em al: coolheat365@yahoo.com Scope of Work: Install Ductless Heat Pum p Valuation: 12198.00 Square Feet: 14240 Num ber of Stories: 1 Construction Type: VB O xupancy G ioup: R-3; Residential ID Code: Permit Issued: 10/20/2025 Permit Expires: 01/20/2026 Form Permit Type: RESIDENTIAL MECHANICAL Status: COMPLETE Assigned To: LaNay Hendrick Property Parcel# Address L egal Description O wner Nam e Ovner Phone Zoning CRAIG JEFFREY R 100 SINGLE 00426400000600 1 9908 54TH AVE NE FAM ILY &PATRICIAA RESIDENCE Contractors Contractor P rim ay Contact P hone A ddress C ontractor Type L icense License# Cool Heat 365 LLC D aniel Dim i k 4 25-740-4212 9204 176th St CONSTRUCTION NW CONTRACTOR UBI 604 252 177 Cool Heat 365 LLC D aniel Dim i;k 4 25-740-4212 9204 176th St CONSTRUCTION L&I COOLHH382405 NW CONTRACTOR Inspections Date I nspection Type D escription S cheduled Date C om lieted Date I nspector S tatus R15. AM Requested*before O1/21/2026 MECHANICAL Ham 01/26/2026 0 1/26/2026 B UILDING A pproved FINAL R15. Unable to O1/14/2026 MECHANICAL O1/20/2026 0 1/20/2026 B UILDING Inspect-No FINAL Access Fees Fee D escription N otes A m amt Processing/Technology $25.00 Inspection $75.00 Heat Pum p-Condensing Unit E nter#of units $25.00 Mechanical Base P erm i Fee $25.00 Credit Card Service $4.50 Total $154.50 Attached Letters Date Letter D escription 10/02/2025 Building Perm i Paym arts Date Paid By D escription P aym art Type A ccepted By A m Omt 10/02/2025 Qinghong Reed 2 44740096 H annah Hardwick $4.50 10/02/2025 XBP Conf: $150.00 244740096 O ttstanding Balance $0.00 Uploaded Files Date File Nam e 10/02/2025 a3b2d4a9b4fl2b39ae70fbd98accd89e knisley_perm i app 20251002 OOOLpdf 10/02/2025 Of20d5e28cd5lbccefc75465efUc7670 daikin split m aival.pdf