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IMPORTANT NOTE:

Read this manual carefully before 
installing or operating your new air 
conditioning unit. Be sure to store
this manual for your future reference. 
This manual only describes the outdoor 
unit of the system. For more info on the
indoor unit, refer to its installation manual.   

 MULTI-SPLIT  SYSTEM AIR CONDITIONER / HEAT PUMP

Installation
Manual

YN-M Series

I+ Models

Two, Three, Four, and Five Zones
(Dual, Triple, Quad, and Quint Multi)

Summary of Contents for YN-M Series

Page 1: ...re this manual for your future reference This manual only describes the outdoor unit of the system For more info on the indoor unit refer to its installation manual MULTI SPLIT SYSTEM AIR CONDITIONER HEAT PUMP Installation Manual YN M Series Inverter Models Two Three Four and Five Zones Dual Triple Quad and Quint Multi ...

Page 2: ...09 a Outdoor Unit Installation Instructions 09 b Drain Joint Installation 11 c Notes on Wall Hole Drilling 11 d When Selecting a 24K Indoor Unit 11 Table of Contents Installation Manual Installation Diagram 07 Installation Overview 06 1 2 6 3 4 Specifications 08 5 ...

Page 3: ...nnection 12 Wiring 14 a Outdoor Unit Wiring 14 b Wiring Figure 16 Air Evacuation 19 a Evacuation Instructions 19 b Note on Adding Refrigerant 26 Test Run 27 Function of Automatic Wiring Piping Correction 28 MC MC 7 8 9 10 11 L1 L2 ...

Page 4: ...the indoor or outdoor unit depending on models NOTE Pipe size may differ based on capacity and model To meet different pipe size requirements sometimes the pipe connections need a transfer connector adapter to be installed on the outdoor unit service valves Optional part one piece one cable Magnetic ring Hitch onto the connective cable between the indoor unit and outdoor unit after installation 1 ...

Page 5: ...thquakes or other hazards that might affect your unit and locate it accordingly Failure to do so could cause equipment failure After installation ensure that there are no refrigerant leaks and that the unit is operating properly Refrigerant and or oil in the system is toxic flammable and poses a serious health and safety risk Note about Fluorinated Gasses 1 This air conditioning unit contains fluori...

Page 6: ...nstallation Overview L1 L2 1 2 3 MC MC 4 5 INSTALLATION ORDER Install the outdoor unit Page 9 Evacuate each of the line sets and Indoor Units Page 20 Connect the wires Page 14 Connect the refrigerant pipes Page 12 Perform a test run Page 22 ...

Page 7: ...dently and individually insulated CAUTION To prevent wall damage use a stud finder to locate studs A minimum pipe run of 3 m 10 is needed to minimize vibration and excessive noise A B and C air circulation clearance area and pathways must be free from obstructions at all times Installation Diagram 4 80 24 24 12 If wall mount condenser bracket is used rear clerance can be reduced to 6 Dual 2 Zone T...

Page 8: ...or all rooms 40 130 60 200 Max length for one indoor unit 25 80 30 100 Max height different between indoor and outdoor unit 15 50 15 50 Max height different between indoor units 10 33 10 33 4 Zone 5 Zone 80 260 80 260 35 115 35 115 15 50 15 50 10 33 10 33 Unit m ft 10m 33ft When installing multiple indoor units to work with a single outdoor unit ensure that the length of the refrigerant pipe and t...

Page 9: ...exceed the maximum allowable pipe length If possible DO NOT install the unit where it is exposed to direct sunlight If possible make sure the unit is located far away from your neighbors property so that the noise from the unit will not disturb them If the location is exposed to strong winds for example near a seaside the unit must be placed against the wall to shelter it from the wind If necessar...

Page 10: ... 2 403 15 7 8 952x1333x415 37 1 2x52 1 2x16 1 4 634 25 404 15 7 8 845x702x363 33 1 4x27 5 8 14 3 8 540 21 1 4 350 13 3 4 300 cm 120 or more A 60 cm 24 or more 150 cm 60 or more 25 cm 10 or more 25 cm 10 or more Installation in Rows Parallel or Serial L H L 1 2H L A 25 cm 10 or more 1 2H L H 30 cm 12 or more L H Cannot be installed Table 6 2 The relations between H A and L are as follows 946x810x42...

Page 11: ...pan 3 Rotate the drain joint 90 until it clicks in place and faces the front of the unit 4 Connect a drain hose extension if included to the drain joint to redirect water from the unit during heating mode NOTE Make sure the water drains into a safe location where it will not cause water damage or a slipping hazard Seal Drain joint A B Base pan hole of outdoor unit Seal Fig 6 9 Notes On Wall Hole D...

Page 12: ...nd liquid piping to prevent condensate water damage Step 1 Cut pipes When preparing refrigerant pipes take extra care to cut and flare them properly This will ensure efficient operation and minimize the need for future maintenance 1 Measure the distance between the indoor and outdoor units 2 Using a roller blade pipe cutter cut the pipe a bit longer than the measured distance CAUTION DO NOT deform t...

Page 13: ... the unit tubing using double wrenches 5 While firmly gripping the nut use a torque wrench to tighten the flare nut according to the torque values in table 7 1 NOTE Use both a spanner and a torque wrench when connecting or disconnecting pipes to from the unit to prevent twisting or other damage Fig 7 7 CAUTION Be sure to wrap insulation around the piping Direct contact with the bare piping may resul...

Page 14: ...tension cord Use only hard wiring CAUTION Connect the outdoor unit wires before connecting the indoor unit wires Make sure that the unit is grounded The grounding wire should be away from gas pipes water pipes lightning rods telephone or other grounding wires Improper grounding may cause electrical shock DO NOT connect the unit with a power source until all wiring and piping is completed Make sure...

Page 15: ... Connect the u lugs to the terminals Establish a color scheme to use for each of the wire leads Repeat for every circuit s terminal block positions identically and firmly screw the u lug of each wire to its corresponding terminal 4 Clamp down the cable with a designated cable clamp 5 Insulate unused wires with electrical tape Keep them away from any electrical or metal parts 6 Reinstall the cover ...

Page 16: ... the indoor and outdoor units For example in the US models shown in the following diagram Terminal A of the outdoor unit must connect with Terminal A on the indoor unit through the same colored wire lead without any inversions along the way Two Zone Dual Split models Model A Newest Model B Some older models might utilize B C or D Model wiring Model C Model D Magnetic ring optional part sold separa...

Page 17: ...s wish to perform their own wiring Three Zone Triple Split models Four Zone Quad Split models Model A Newest Model B Some Older Models might utilize B C or D Model wiring Model A Newest Model C Model D Model B Some Older Models might utilize B C or D Model wiring Model C ...

Page 18: ... Page 18 Wiring Five Zone Quint Split models Model A Newest Model B Some Older Models might utilize B C or D Model wiring Model D Model C Model D ...

Page 19: ... Precautions Evacuation Instructions Before using manifold gauge and vacuum pump read their operation manuals to familiarize yourself with how to use them properly Air and moisture in the refrigerant system will result in significant problems with your system such as CAUTION Use a vacuum pump with a gauge reading lower than 0 1MPa 15 PSI and air discharge capacity above 40L min 1 5 CFM The outdoor...

Page 20: ...he vacuum pump off Leave the gauge manifold set and the hoses connected and recheck the vacuum reading 15 minutes later to ensure there is no vacuum loss Very small increases in vacuum level is normal 10 Circuit A is now dry and free of contaminants Do not remove the hose of your gauge manifold set from the service port 11 Remove the 2 way liquid service valve s brass cap of circuit A Insert prope...

Page 21: ...d moisture from the system ONE CIRCUIT AT A TIME This procedure should start after all electrical connections are finalized and the system receives proper power for immediate test running to be performed one circuit at a time For installation convenience one set of COMMON or MASTER service valves have been adopted into the 3 4 and 5 zone systems The common master set of service valves control the ...

Page 22: ... direction Check your low pressure gauge on the manifold to verify that it now indicates positive pressure of approximately 80 to 120 PSI in your lines Cap Valve body Valve stem Flare nut 2 way liquid service valve 15 Apply soap water mixture on both the indoor unit connections and the outdoor unit connections for circuit A with a soft brush to check for leakage at the connecting points of the pip...

Page 23: ...limit additional refrigerant must be added to the system to compensate for the difference 0 16 oz per additional ft for 1 4 liquid pipe and 0 32 oz per additional ft for 3 8 liquid pipe PROCEDURE FOR 3 4 AND 5 ZONE OUTDOOR UNITS ARE DIFFERENT FROM 2 ZONE MODELS See the specific instructions below for each type as it applies to your model 1 For dual 2 zone systems connect the low pressure hose on y...

Page 24: ...e refrigerant system ADDING OR REPLACING REFRIGERANT AFTER A REFRIGERANT LOSS IS DISCOVERED Please note R410a is a blended and isotropic refrigerant If refrigerant is lost from your system in significant amounts exceeding 15 of the total volume the remaining refrigerant may no longer contain the proper original ratio of the blend Therefore the system must be entirely evacuated and recharged with f...

Page 25: ...tion P2 P3 Current overload protection F0 P4 Temperature protection of compressor discharge P5 Condenser high temperature protection P6 Inverter module IPM malfunction P0 2 Zone 3 Zone 4 Zone 5 Zone Pre charged up to max total pipe length m ft 15 50 ft 22 5 75 ft 30 100 ft 37 5 125 ft Additional refrigerant charge needed beyond total max length g 15 g per excess meter beyond total 15 meters 15 g p...

Page 26: ...completing installation Cover the following areas 1 Insulation resistance The insulation resistance must be more than 2MΩ 2 Grounding work After finishing grounding work measure the grounding resistance by visual detection and using the grounding resistance tester Make sure the grounding resistance is less than 4Ω 3 Electrical leakage check performed during test while unit is on During a test oper...

Page 27: ...main power switch and allow the unit to warm up 3 Set the air conditioner to COOL mode 4 For the indoor unit a Ensure the remote control and its buttons work properly b Ensure the louvers move properly and can be changed using the remote control c Double check to see if the room temperature is registered correctly d Ensure the indicators on the remote control and the display panel on the indoor un...

Page 28: ...d How To Activate the Function 1 Check that the outside temperature is above 5 This function does not work when outside temperature is not above 5 2 Check that the service valves of the liquid pipe and gas pipe are open 3 Turn on the breaker and wait at least 2 minutes 4 Press the check switch on the outdoor PCB board unit LED display CE Automatic Correction Function Correct wiring Terminal block ...

Page 29: ...nufacturer for details QSBPTYI 040AEN 16122000003394 20171212 is a registered trademark of Parker Davis HVAC International Inc Parker Davis HVAC International Inc 2250 NW 102 Place Doral FL 33172 USA Tel 305 513 4488 Fax 305 513 4499 email info pd hvac com Website www pd hvac com Copyright 2017 Parker Davis HVAC International Inc All rights reserved ...

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