'%3e%3cpath%20d='M10%2010.5V17h12.5v5.5l-21%20.038V15l8.5-4.5ZM1%206h11M6.5%202H12M5.5%2022.5V19'/%3e%3cpath%20d='M21.21%2017.012%2020.14%201.5h-4.28l-1.07%2015.512M15.516%206.49h4.967'/%3e%3c/g%3e%3cdefs%3e%3cclipPath%20id='a'%3e%3cpath%20fill='%23fff'%20d='M0%200h24v24H0z'/%3e%3c/clipPath%3e%3c/defs%3e%3c/svg%3e){kind=small}
Mitsubishi Split-Type Air Conditioner PUY-A42NKA7-BS
Need answers fast?
Explore the manual using AI.
Turn manuals into instant answers
with your AI-powered assistantTurn manuals into instant answers
with your AI-powered assistant
Manual for Mitsubishi Split-Type Air Conditioner PUY-A42NKA7-BS
Complete asset maintenance, one click away
Get instant access to all the maintenance information you need. Empower technicians to perform preventive maintenance with asset packages, ready to use right out of the box.
Documents & Manuals
Find all the essential guides in one place.
Tensioning Guide- Belt-diagram
- C-120 pulleys
+ 13 more
Work Order Templates
Pre-built workflows to keep your asset running smoothly.
- Daily Electrical System Inspection
- Replace Roller and Pulley
- Install Engine B-120
+ 29 more
Procedures
Integrate maintenance plans directly into your work orders.
- Motion Industries
- Applied Industrial Technologies
- Electrical Brothers
+ 5 more
Parts
Access the parts list for your equipment in MaintainX.
- Drive Motor
- B2 Rollers
- Tensioning System
+ 40 more
Mitsubishi Split-Type Air Conditioner PUY-A42NKA7-BS
Create an account to install this asset package.
Maintenance Plans for Mitsubishi Split-Type Air Conditioner Model PUY-A42NKA7-BS
Integrate maintenance plans directly into your work orders in MaintainX.
Outdoor Unit TH3,TH4,TH33 And TH32 Thermistor Replacement
Remove the service panel
Disconnect the connectors, TH3 (white), TH32 (black), TH4 (white), and TH33 (yellow), on the controller circuit board in the electrical parts box
Loosen the clamp for the lead wire in the rear of the electrical parts box
Pull out the thermistor <Liquid> (TH3), thermistor <Comp. surface> (TH33) and thermistor <Suction> (TH32) from the sensor holder
Sign off on the thermistor replacement
Outdoor Unit TH7 Thermistor Replacement
Remove the service panel
Upload a photo of the removed service panel
Remove the top panel
Upload a photo of the removed top panel
Disconnect the connector TH7 (red) on the controller circuit board in the electrical parts box
Loosen the clamp for the lead wire in the rear of the electrical parts box
Upload a photo of the loosened clamp for the lead wire
Pull out the thermistor <Ambient> (TH7) from the sensor holder
Note: In case of replacing thermistor <Ambient> (TH7), replace it together with thermistor <2-phase pipe> (TH6), since they are combined together
Outdoor Unit Linear Expansion Valve Replacement
Remove the service panel
Upload a photo of the removed service panel
Remove the top panel
Upload a photo of the removed top panel
Remove 3 valve bed fixing screws (4 × 10), 4 ball valve and stop valve fixing screws (5 × 16), then remove the valve bed
Remove 4 right side panel fixing screws (5 × 12) in the rear of the unit and then remove the right side panel
Remove the linear expansion valve
Upload a photo of the removed linear expansion valve
Recover refrigerant
Outdoor Unit Fan Motor Replacement
Remove the service panel
Remove the top panel
Remove 5 fan grille fixing screws (5 × 12) to detach the front panel and the fan grille together
Remove a nut (for right handed screw of M6) to detach the propeller
Disconnect the connectors, CNF1, CNF2 (white) on the controller circuit board in electrical parts box
Remove 4 fan motor fixing screws (5 × 25) to detach the fan motor
When attaching the fan motor, make sure to route the cable through the hook below the fan motor and fix firmly with the clamp
Upload a photo of the completed task
Sign off on the fan motor replacement
Outdoor Unit Refrigirant Charging
Cautions for service
Refrigerant recovered from the unit completely
Refrigerant not released in the air
Cycle charged with specified amount of refrigerant after service
Filter drier installed during service
Filter drier used for new refrigerant
Additional refrigerant charge
Cylinder for R410A is a syphon type
Charging performed with the cylinder of syphon stood vertically
Parts for Mitsubishi Split-Type Air Conditioner PUY-A42NKA7-BS
Access the parts list for your equipment in MaintainX.
Inverter Starter Type, Hermetic Compressor - 2,5 KW
MNB33FBRMC-L
Inverter Starter Type, Hermetic Compressor - 2,5 KW
MNB33FBRMC-L
Inverter Starter Type, Hermetic Compressor - 2,5 KW
MNB33FBRMC-L
Unlock efficiency
with MaintainX CoPilot
MaintainX CoPilot is your expert colleague, on call 24/7, helping your team find the answers they need to keep equipment running.
'%20stroke-width='2.05034'/%3e%3cpath%20d='M43.601%2020.8897C43.2688%2019.252%2042.7312%2017.6627%2042.001%2016.1597'%20stroke='url(%23paint1_linear_4912_14668)'%20stroke-width='2.05034'/%3e%3cpath%20d='M40.001%2012.8882C38.8627%2011.3731%2037.516%2010.0265%2036.001%208.88818'%20stroke='url(%23paint2_linear_4912_14668)'%20stroke-width='2.05034'/%3e%3cpath%20d='M32.729%206.89053C31.2266%206.1604%2029.638%205.62282%2028.001%205.29053'%20stroke='url(%23paint3_linear_4912_14668)'%20stroke-width='2.05034'/%3e%3cpath%20d='M24.001%2014.8901V24.8901L32.001%2032.8901'%20stroke='url(%23paint4_linear_4912_14668)'%20stroke-width='2.05034'/%3e%3cdefs%3e%3clinearGradient%20id='paint0_linear_4912_14668'%20x1='4'%20y1='25'%20x2='44'%20y2='25'%20gradientUnits='userSpaceOnUse'%3e%3cstop%20stop-color='%23246CFF'/%3e%3cstop%20offset='1'%20stop-color='%232ED888'/%3e%3c/linearGradient%3e%3clinearGradient%20id='paint1_linear_4912_14668'%20x1='3.5'%20y1='20.8897'%20x2='44'%20y2='20.8897'%20gradientUnits='userSpaceOnUse'%3e%3cstop%20stop-color='%23246CFF'/%3e%3cstop%20offset='1'%20stop-color='%232ED888'/%3e%3c/linearGradient%3e%3clinearGradient%20id='paint2_linear_4912_14668'%20x1='3.5'%20y1='12.8882'%20x2='44.5'%20y2='12.8882'%20gradientUnits='userSpaceOnUse'%3e%3cstop%20stop-color='%23246CFF'/%3e%3cstop%20offset='1'%20stop-color='%232ED888'/%3e%3c/linearGradient%3e%3clinearGradient%20id='paint3_linear_4912_14668'%20x1='6.5'%20y1='6.89053'%20x2='43.5'%20y2='6.89053'%20gradientUnits='userSpaceOnUse'%3e%3cstop%20stop-color='%23246CFF'/%3e%3cstop%20offset='1'%20stop-color='%232ED888'/%3e%3c/linearGradient%3e%3clinearGradient%20id='paint4_linear_4912_14668'%20x1='5'%20y1='32.8901'%20x2='44'%20y2='32.8901'%20gradientUnits='userSpaceOnUse'%3e%3cstop%20stop-color='%23246CFF'/%3e%3cstop%20offset='1'%20stop-color='%232ED888'/%3e%3c/linearGradient%3e%3c/defs%3e%3c/svg%3e){kind=small}
Reduce Unplanned Downtime
Ensure your team follows consistent procedures to minimize equipment failures and costly delays.
'%20stroke-width='2.05034'/%3e%3cpath%20d='M46.667%2041.7231C46.667%2044.5079%2045.5607%2047.1786%2043.5916%2049.1478C41.6225%2051.1169%2038.9518%2052.2231%2036.167%2052.2231C33.3822%2052.2231%2030.7115%2051.1169%2028.7424%2049.1478C26.7732%2047.1786%2025.667%2044.5079%2025.667%2041.7231C25.667%2038.9384%2026.7732%2036.2677%2028.7424%2034.2985C30.7115%2032.3294%2033.3822%2031.2231%2036.167%2031.2231C38.9518%2031.2231%2041.6225%2032.3294%2043.5916%2034.2985C45.5607%2036.2677%2046.667%2038.9384%2046.667%2041.7231Z'%20stroke='url(%23paint1_linear_4912_14680)'%20stroke-width='2.05034'/%3e%3cpath%20d='M37.334%2035.8896V40.5563H42.0007'%20stroke='url(%23paint2_linear_4912_14680)'%20stroke-width='2.05034'/%3e%3cdefs%3e%3clinearGradient%20id='paint0_linear_4912_14680'%20x1='5'%20y1='52.2231'%20x2='51'%20y2='52.2231'%20gradientUnits='userSpaceOnUse'%3e%3cstop%20stop-color='%23246CFF'/%3e%3cstop%20offset='1'%20stop-color='%232ED888'/%3e%3c/linearGradient%3e%3clinearGradient%20id='paint1_linear_4912_14680'%20x1='5'%20y1='52.2231'%20x2='47'%20y2='52.2231'%20gradientUnits='userSpaceOnUse'%3e%3cstop%20stop-color='%23246CFF'/%3e%3cstop%20offset='1'%20stop-color='%232ED888'/%3e%3c/linearGradient%3e%3clinearGradient%20id='paint2_linear_4912_14680'%20x1='5'%20y1='40.5563'%20x2='52.5'%20y2='40.5563'%20gradientUnits='userSpaceOnUse'%3e%3cstop%20stop-color='%23246CFF'/%3e%3cstop%20offset='1'%20stop-color='%232ED888'/%3e%3c/linearGradient%3e%3c/defs%3e%3c/svg%3e){kind=small}
Maximize Asset Availability
Keep your assets running longer and more reliably, with standardized maintenance workflows from OEM manuals.
'%20stroke-width='2.05034'/%3e%3cpath%20d='M13.9995%2024.2231C13.9995%2029.1738%2015.9662%2033.9217%2019.4669%2037.4224C22.9675%2040.9231%2027.7155%2042.8897%2032.6662%2042.8897C37.6169%2042.8897%2042.3648%2040.9231%2045.8655%2037.4224C49.3662%2033.9217%2051.3328%2029.1738%2051.3328%2024.2231C51.3328%2019.2724%2049.3662%2014.5244%2045.8655%2011.0237C42.3648%207.52306%2037.6169%205.5564%2032.6662%205.5564C27.7155%205.5564%2022.9675%207.52306%2019.4669%2011.0237C15.9662%2014.5244%2013.9995%2019.2724%2013.9995%2024.2231Z'%20stroke='url(%23paint1_linear_4912_14674)'%20stroke-width='2.05034'/%3e%3cpath%20d='M32.6665%2017.2231V12.5564'%20stroke='url(%23paint2_linear_4912_14674)'%20stroke-width='2.05034'/%3e%3cpath%20d='M32.6665%2035.8898V31.2231'%20stroke='url(%23paint3_linear_4912_14674)'%20stroke-width='2.05034'/%3e%3cpath%20d='M37.9165%2020.7231V19.5565C37.9165%2018.9376%2037.6707%2018.3441%2037.2331%2017.9066C36.7955%2017.469%2036.202%2017.2231%2035.5832%2017.2231H29.7498C29.131%2017.2231%2028.5375%2017.469%2028.0999%2017.9066C27.6623%2018.3441%2027.4165%2018.9376%2027.4165%2019.5565V20.6018C27.4166%2021.1326%2027.5977%2021.6475%2027.9298%2022.0615C28.262%2022.4756%2028.7254%2022.764%2029.2435%2022.8791L36.0895%2024.4005C36.6077%2024.5157%2037.071%2024.8041%2037.4032%2025.2181C37.7353%2025.6321%2037.9164%2026.147%2037.9165%2026.6778V28.8898C37.9165%2029.5086%2037.6707%2030.1021%2037.2331%2030.5397C36.7955%2030.9773%2036.202%2031.2231%2035.5832%2031.2231H29.7498C29.131%2031.2231%2028.5375%2030.9773%2028.0999%2030.5397C27.6623%2030.1021%2027.4165%2029.5086%2027.4165%2028.8898V27.7231'%20stroke='url(%23paint4_linear_4912_14674)'%20stroke-width='2.05034'/%3e%3cdefs%3e%3clinearGradient%20id='paint0_linear_4912_14674'%20x1='5'%20y1='33.5'%20x2='50'%20y2='33.5'%20gradientUnits='userSpaceOnUse'%3e%3cstop%20stop-color='%23246CFF'/%3e%3cstop%20offset='1'%20stop-color='%232ED888'/%3e%3c/linearGradient%3e%3clinearGradient%20id='paint1_linear_4912_14674'%20x1='5'%20y1='42.8897'%20x2='48.5'%20y2='42.8897'%20gradientUnits='userSpaceOnUse'%3e%3cstop%20stop-color='%23246CFF'/%3e%3cstop%20offset='1'%20stop-color='%232ED888'/%3e%3c/linearGradient%3e%3clinearGradient%20id='paint2_linear_4912_14674'%20x1='5'%20y1='17.2231'%20x2='52.5'%20y2='17.2231'%20gradientUnits='userSpaceOnUse'%3e%3cstop%20stop-color='%23246CFF'/%3e%3cstop%20offset='1'%20stop-color='%232ED888'/%3e%3c/linearGradient%3e%3clinearGradient%20id='paint3_linear_4912_14674'%20x1='3.5'%20y1='35.8898'%20x2='50.5'%20y2='35.8898'%20gradientUnits='userSpaceOnUse'%3e%3cstop%20stop-color='%23246CFF'/%3e%3cstop%20offset='1'%20stop-color='%232ED888'/%3e%3c/linearGradient%3e%3clinearGradient%20id='paint4_linear_4912_14674'%20x1='3'%20y1='31.2231'%20x2='52'%20y2='31.2231'%20gradientUnits='userSpaceOnUse'%3e%3cstop%20stop-color='%23246CFF'/%3e%3cstop%20offset='1'%20stop-color='%232ED888'/%3e%3c/linearGradient%3e%3c/defs%3e%3c/svg%3e){kind=small}
Lower Maintenance Costs
Turn any technician into an expert to streamline operations, maintain more assets, and reduce overall costs.
Thousands of companies manage their assets with MaintainX
'%3e%3cpath%20fill='url(%23b)'%20d='M66.008%2080.068c-5.084-.786-9.763-3.834-12.442-8.68a16.942%2016.942%200%200%201-1.87-5.18c1.096.19%202.203.476%203.298.87%206.525%202.333%2010.836%207.68%2011.014%2012.99ZM51.47%2061.576c.488-5.524%203.62-10.716%208.847-13.597a17.132%2017.132%200%200%201%2011.335-1.882c-.798%208.145-7.43%2014.848-16.038%2015.599-1.417.119-2.799.07-4.144-.12Zm28.564-11.478a17.513%2017.513%200%200%201%203.727%204.62c4.608%208.335%201.584%2018.813-6.75%2023.409a16.988%2016.988%200%200%201-4.359%201.679%2019.624%2019.624%200%200%201-3.977-12.776c.346-7.561%204.942-13.931%2011.36-16.932Z'/%3e%3cpath%20fill='%23110F0D'%20fill-rule='evenodd'%20d='M142.831%2048.324h4.977V77.03h-4.977V48.324Zm27.278%2013.002c.322%201.048.453%202.263.453%203.62v12.073h-4.787V66.208c0-.75-.047-1.572-.154-2.143-.453-2.382-1.822-3.572-4.215-3.572-2.31%200-3.882%201.274-4.43%203.476-.143.596-.226%201.405-.226%202.25v10.8h-4.787V56.623h4.477v2.989c1.536-2.5%203.906-3.43%206.371-3.43%203.488%200%206.263%201.68%207.298%205.144Zm24.636%207.323c0%203.882-2.358%206.525-5.763%207.727-1.298.453-2.632.643-4.62.643h-10.169V48.324h9.085c1.691%200%203.156.143%204.049.38%203.465.93%205.727%203.68%205.727%207.335%200%202.441-.81%204.156-2.762%205.644%202.905%201.417%204.453%203.727%204.453%206.966Zm-15.634-8.656h4.584c1.024%200%201.917-.143%202.536-.417%201.215-.548%201.905-1.608%201.905-3.167%200-1.548-.643-2.572-1.845-3.132-.691-.31-1.762-.452-2.763-.452h-4.417v7.168Zm10.716%208.465c0-1.536-.893-3.37-3.227-3.893-.428-.095-1.036-.143-1.571-.143h-5.918v8.085h5.501c.56%200%201.429-.048%201.953-.167%201.94-.453%203.262-1.846%203.262-3.882Zm47.747-11.847-8.097%2020.408h-4.429l-8.109-20.408h5.191l5.192%2014.574%205.108-14.574h5.144Zm-20.218%2010.002c0%20.69-.036%201.262-.155%201.94h-15.943c.631%202.87%202.714%204.728%205.882%204.728%202.131%200%203.607-.882%204.703-2.525h4.87c-1.762%204.144-5.204%206.692-9.657%206.692-6.084%200-10.537-4.858-10.537-10.49%200-6.108%204.524-10.776%2010.335-10.776%206.239%200%2010.442%204.954%2010.502%2010.43Zm-4.763-1.405c-.333-2.846-2.643-4.858-5.691-4.858-2.894%200-5.287%201.929-5.621%204.858h11.312Zm-72.667%203.44c0%204.787-3.287%208.371-9.419%208.371H119.363V64.66c-1.917.274-3.87.69-5.811%201.238l4.537%2011.121h-5.418l-3.596-9.585c-5.144%202.084-10.085%205.216-14.217%209.585h-4.786L101.8%2048.312h4.56l5.68%2013.883a44.112%2044.112%200%200%201%207.323-1.774V48.312h9.084c1.703%200%203.156.143%204.061.393%203.453.929%205.727%203.667%205.727%207.323%200%201.917-.738%204.179-2.81%205.691%203.06%201.56%204.501%204.025%204.501%206.93Zm-15.634-8.667a62.664%2062.664%200%200%201%202.06-.036c1.703.012%203.239.131%204.608.37%201.441-.549%202.357-1.727%202.357-3.537%200-1.941-.881-3.144-2.488-3.667-.548-.18-1.358-.286-2.322-.286h-4.215v7.156Zm-16.55%203.905-3.715-9.894-6.394%2016.502c2.833-2.595%206.263-4.858%2010.109-6.608Zm27.254%204.74c0-2.775-3.131-4.347-8.513-4.418-.715%200-1.441.011-2.191.047v8.252h5.918c2.548%200%204.786-1.37%204.786-3.882Z'%20clip-rule='evenodd'/%3e%3c/g%3e%3cdefs%3e%3clinearGradient%20id='b'%20x1='51.47'%20x2='85.916'%20y1='62.946'%20y2='62.946'%20gradientUnits='userSpaceOnUse'%3e%3cstop%20stop-color='%23CD9F28'/%3e%3cstop%20offset='1'%20stop-color='%23ECD80B'/%3e%3c/linearGradient%3e%3cclipPath%20id='a'%3e%3cpath%20fill='%23fff'%20d='M51.47%2045.728h186.104V80.14H51.47z'/%3e%3c/clipPath%3e%3c/defs%3e%3c/svg%3e)
More from Mitsubishi
Explore Other Assets
© 2026 MaintainX. All rights reserved.