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WARNING

This equipment is to be serviced by professionally trained personnel 
ONLY. Under NO circumstances should an unqualified person service it. 
This equipment contains refrigerant under PRESSURE and operates at 
HIGH VOLTAGE. Improperly installed, adjusted or altered equipment by an 
unqualified person poses safety hazards including FIRE, ELECTROCUTION, 
or EXPLOSION, which could result in death or serious injury.

Warnings and Cautions

Warnings and Cautions.

 Warnings are provided to alert installing 

contractors to potential hazards that could result in personal injury or 
death, while cautions are designed to alert personnel to conditions that 
could result in equipment damage.

Your personal safety and the proper operation of this machine depend 
upon the strict observance of these precautions.

Attention: 

Warnings and Cautions appear at appropriate sections 

throughout this literature. Read these carefully.

WARNING:

 Indicates a potentially hazardous situation which, if not 

avoided, could result in death or serious injury.

CAUTION:

 

Indicates a potentially hazardous situation which, if not 

avoided, could result in minor or moderate injury. It may also be used 
to alert against unsafe practices.

NOTICE

:

 Indicates a situation that could result in equipment or 

property-damage only accidents.

WARNING

Electrocution and Fire Hazards with Improperly Installed and Grounded 

Field Wiring!
Improperly installed and grounded field wiring poses FIRE & 
ELECTROCUTION hazards. To avoid these hazards, you MUST follow 
requirements for field wiring installation and grounding as described in 
the National Electrical Codes (NEC) and your local/state electrical codes. 
All field wiring MUST be performed by qualified personnel. 
Failure to follow these requirements could result in death or serious injury.

Summary of Contents for American Standard 4MXD8509A

Page 1: ...the right to change design and specifications without notice We are committed to using environmentally conscious print practices 2020 MS SVN34D EN 11 Jun 2020 Supersedes MS SVN34C EN January 2016 The...

Page 2: ...autions Attention Warnings and Cautions appear at appropriate sections throughout this literature Read these carefully WARNING Indicates a potentially hazardous situation which if not avoided could re...

Page 3: ...contact your local sales office USE ONLYTHE FACTORY RECOMMENDED DAFNE HERMETIC OIL FV50S for servicing these units Important Environmental Concerns Scientific research has shown that certain man made...

Page 4: ...f the Drain Pipe 14 Design of the Drain Pipe 14 Precautions for the Drain Pipe 15 Test the Drainage System 16 Connecting the Pipe at the Indoor Unit 17 Installation of the Connection Pipe 18 Flare Pro...

Page 5: ...complete installation may cause injury or property damage in the event the unit falls off of the base 5 Electrical work should be carried out in accordance with the installation manual and local state...

Page 6: ...ge to the air conditioner 16 Be sure to follow your local state and National Electric Codes when grounding this unit 17 This appliance is not intended for use by persons with a lack of experience and...

Page 7: ...inch 9 8 inch NOTE Be sure to place an inspection service opening at the position indicated in the diagram above for maintenance of the equipment Indoor Ceiling Concealed Unit NOTE The minimum distanc...

Page 8: ...e indoor unit far away from heat sources vapor and flammable gas 4 Be sure that the installation of the indoor unit conforms to the installation dimension diagram 5 Be sure to leave enough space to al...

Page 9: ...e a qualified licensed electrician or other individual who has been trained in handling live electrical components perform these tasks Failure to follow all of the recommended safety warnings provided...

Page 10: ...ation depends on the actual installation environment After installation of the indoor unit the leveling must be checked to make sure the unit is kept horizontal fore and aft and a downward slope of 5...

Page 11: ...he transition connection to the air outlet of the unit and attach it with a rivet Connect the outlet to the short duct and secure them with tape CAUTION This unit is intended for free air discharge or...

Page 12: ...flange is in the back and the return air cover plate is in the bottom 2 If downward return air is desired exchange the location of the rectangular flange and the return air cover plate 3 Connect one e...

Page 13: ...ge from the joint of the condensate pipe Failure to do so may result in equipment and or property damage 1 The condensate pipe should keep a downward sloping angle of 5 10 which can facilitate drainag...

Page 14: ...for multiple units the joined section of the pipe should be 3 9 inches 100mm lower than the drain hole of each device and it is suggested to use a larger diameter pipe when connecting multiple units I...

Page 15: ...accessory Clamp accessory Max 4mm 0 16 inch Precautions for the Drain Pipe The installation height of the lift pipe should be less than 33 5 inches 850mm It is recommended to set an inclination angle...

Page 16: ...drain pipe should be suitable to the running capacity of the unit Drain Hose accessory Max 75mm Max 1000mm Max 39 4 inch Max 3 inch Test the Drainage System 1 After the electrical installation test t...

Page 17: ...pe is to be connected so as to prevent dust and impurities from coming into the pipe system Back up Wrench 1 When connecting the pipe to the unit or removing it from the unit please use both the spann...

Page 18: ...with that of the indoor unit Installation of the Connection Pipe Flare Processing 1 Cut the connection pipe with the pipe cutter and remove the burrs 2 Hold the pipe downward to prevent cuttings from...

Page 19: ...To prevent breaking of the pipe avoid sharp bends Bend the pipe with a radius of curvature of 5 9 in 150 mm or more 2 If the pipe is bent repeatedly at the same place it will break CAUTION Be sure to...

Page 20: ...ed insulation 5 All wiring should be done strictly in accordance with the wiring diagram otherwise improper wiring would cause abnormal operation or damage to the unit 6 Do not let the electric wires...

Page 21: ...rd through the insulation tube fasten it with the cord clamp Stranded Wire Note Match the terminal block numbers and connection cord colors with those of the indoor unit WARNING 1 Before starting work...

Page 22: ...nd electrocution hazards For high voltage connections flexible electrical conduit is recommended whenever vibration transmission may create a noise problem within the structure To avoid these hazards...

Page 23: ...The communication distance between the main board and the wired controller can be up to 65 ft The standard distance is 25 ft Note When connecting the power supply cord make sure that the phase of the...

Page 24: ...malfunction and fire or electrocution hazard 8 Does the power cord match the unit requirements Improper wiring can create malfunction and fire or electrocution hazard 9 Are there any obstructions nea...

Page 25: ...ck VT Violet OG Orange n Color Key Indoor Unit Ceiling Concealed NOTE The wiring diagrams in this guide are included as a reference The manufacturer has a policy of continuous product and product data...

Page 26: ...it Dimensions In mm MODEL A B C D E F G H I J 4MXD8509A 30 742 19 491 26 662 24 620 28 700 24 615 31 782 6 156 8 200 25 635 4MXD8512A 4MXD8518A 37 942 19 491 34 862 32 820 35 900 24 615 39 982 6 156 8...

Page 27: ...hen unit is running or after running The sound of the drainage system operating Cracking sound is heard when unit is operating and after operating This sound occurs when the unit panels expand or cont...

Page 28: ...roperly 3 If the batteries of the wireless remote controller have been replaced 4 If the filter screen has been cleaned and replaced securely 5 After long periods of shutdown open the main power switc...

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