YMGI WMMS-09K-V2A(57)2 Installation Instructions Manual Download Page 10

BRIEF UNIT INFO

Find the cooling/heating load capacity of the space where the unit will be in service. Select matched WMMS units 
for the space. Under sizing or over sizing equipment is NOT recommended.

Mini Split Wall Mount Systems come with three types: cooling only and heat pump and heat pump with electric 
heater. These units can be easily wired. Either indoor unit or outdoor unit can be used with any matched 
comparable outdoor unit or indoor unit as long as they have matched size and control. Must refer to electrician 
before doing so. 

* Indoor unit operates much quieter than air diffuser of central air conditioning system.
* Stylish design of indoor unit adds beauty to rooms.
* Connection pipe, refrigerant usage is much saved compared to installing up-flow condensing units on the 
   ground and long copper/wire lines needed between indoor and outdoor units.
* Contractor work is eased and time is saved.
* Efficiency and lifetime of system is increased.

IMPORTANT NOTES FOR UNIT OPERATION ABMIENT & SIZING

Since the outdoor units can be installed on a wall or balcony (close to the indoor unit) the following are some 
benefits for contractors and customers:

Each system is thoroughly tested before leaving the factory.  Each unit is acoustically, thermally and 
systematically designed to give optimum quality and reliability.

P17 OF 44

INDOOR UNIT-MAJOR COMPONENTS

Remode Control

UNIT ENGINEERING SUBMITTALS-MECHANIAL

UNIT ENGINEERING SUBMITTALS-MECHANIAL

P18 OF 44

09K

12K

W

H

D

30.3 

30.3 

11.1 

11.1 

7.9

18.7

27.0

25.4

35.3

7.9

18.7

33.1

25.4

44.1

18K

24K

34.1 

12.0 

8.25

39.7 

12.4 

8.7

INDOOR UNIT

(Top view)

(Bottom view)

Tube exit option-right

(Right view)

(Left view)

(Front view)

D

Tube exit option-left

Unit

Model

Dimensions (In)

Operation

Net

Weight (Lbs)

W

H

D

Unit

Model

Dimensions (In)

Operation

Net

Weight (Lbs)

18K

21.25 In

27 In

24K

09K

12K

10.3 In

18.75 In

3.2 In

7.375 In

21.4 In

10.3 In

18.75 In

3.2 In

7.375 In

21.4 In

10.5 In

11.4 In

BRIEF UNIT INFO

YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World !

YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World !

Auto-Directional Louvers 

(Up and Down)

Test/Reset Switch

Front Panel 

or Faceplate

Air Fiter

Manual or Motorized Louvers 

(Left to Right, Right to Left)

Summary of Contents for WMMS-09K-V2A(57)2

Page 1: ...in material and workmanship for normal use and maintenance Installation operation maintenance and service shall follow professional practices for regular cooling and heating equipment NEC State City...

Page 2: ...etails may vary and some may be the key to determine the success and quality of the installation Experience with certain manufacturer may not be applied fully to another manufacturer For example wirin...

Page 3: ...s and wires are to be installed 11 If all the suggestions have been taken and all the necessary steps are followed CUSTOMER AND TECHNICIAN MUST READ The cost of not having your unit installed properly...

Page 4: ...rical power V Ph Hz measured at wiring terminal block of Indoor unit outdoor unit 7 Wire gauge length and terminal colors between circuit breaker disconnect switch to outdoor unit 9 The size of HVAC c...

Page 5: ...rience or professional knowledge to correct the problem RECEIVING AND FREIGHT DAMAGE ATTENTION Freight package unit shall be checked thoroughly for damage at receiving before accepting by signing on t...

Page 6: ...help you in the following steps in sequence from 1 to 3 CUSTOMER AND TECHNICIAN MUST READ If the damage is minor or partial that you choose to accept you can contact the distributor or YMGI to discus...

Page 7: ...Customer Request to Ship Products to YMGI Service Center for Inspection and Repair and Authorization to Charge form 2 You will review the form and fill all fields appropriately sign and send back to t...

Page 8: ...ons of general up flow condensing units are limited such as apartments condos lofts multi families and high rise buildings and others named or unnamed Indoor unit s delivers the thermal and acoustical...

Page 9: ...6 7 25 3 5 3 6 7 x 30 1 8 18 Cooling Speed SH H M L RPM 1300 1100 900 700 1350 1150 950 750 1400 1150 1000 850 1350 1150 1000 850 19 Heating Speed SH H M L RPM 1300 1140 980 820 1350 1190 1020 850 145...

Page 10: ...s can be installed on a wall or balcony close to the indoor unit the following are some benefits for contractors and customers Each system is thoroughly tested before leaving the factory Each unit is...

Page 11: ...27 6 37 9 37 6 Model 09K 12K 18K 24K Unit W 30 30 35 0 35 0 D1 12 6 21 3 11 3 12 6 21 3 11 3 15 6 22 0 22 0 14 3 14 3 15 6 D 10 1 10 1 13 4 13 4 P20 OF 44 USER NOTES AND SERVICE LOG 6 6 12 100 6 20 12...

Page 12: ...Tape Level Flash Light Screw Driver Phillps and Flat Hammer Knife Scissors Goggled Glass Mask Gloves Ladder 2 Refrigeration Related Work RECOMMENDED TOOLS FOR INSTALLATION 3 Electrical Related Instal...

Page 13: ...ors are to be used make sure to keep the two holes close to each other at least 2 inches apart Mounting plate should be attached to the structural part of the wall Minimum clearance as shown below is...

Page 14: ...in condensing unit othewise condensate may ice up causing damage to the condensing unit Suggest to use YMGI provided brackets and condensate drainage fitting accessories Indoor unit front Bottom the r...

Page 15: ...perpendicular to the pipe surface Don t cut too fast or too hard Turn and tighten the tube cutter slowly Remove residual left and de bur at the cutting edge The cutting edge should be clear and clean...

Page 16: ...ation securely on the external wall with proper clamps at 6 feet apart Fill the gap between the wall hole and wall sleeve with putty to keep from rain or dust entering inside PIPING GUIDE Set the pack...

Page 17: ...frigerant Charge Level Reference Temperature Pressure Table Split Condensing Unit R410A AC Product Series YMGI Group Mini Split Version 01 11 2010 Reference Temperature Pressure Table Split Condensing...

Page 18: ...ng indoor fan motor works Heating all stop running 3s off blink four times 1 Forcibly lift up the panel at a specific angle from the two ends of the front panel following the arrow direction Then pull...

Page 19: ...e is not staable cooling dehumidifying compressor will stop indoor fan motor works Heating all will stop 1 Check the Input voltage if the Voltage is lower than 150VAC restart the machine when the powe...

Page 20: ...protection Heating LED Off 3S Blinks 6 times HE Compressor de managet protection rotor locked doesn t rotate Heating LED Off 3S Blinks 14 times L0 Airflow switch error TBD L1 Humidity sensor error TB...

Page 21: ...uring gas sensor error Running LED Off 3S Blinks 21 times HP Solar AC solar power input voltage is higher than 180V TBD dA AHU or RT discharge air relative humidity sensor error TBD dE AHU or RT fresh...

Page 22: ...r Cooling LED Off 3S Blinks 7 times FC Slide door error or air louver mechanism error TBD FE Over load sensor error TBD H8 Water level high overflow protection Heating LED Off 3S Blinks 8 times H9 Ele...

Page 23: ...the unit and or know more details than anybody else They will check the unit and find out the problems with the professional knowledge about HVAC and electric product installation by using special to...

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