YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! INSTALLER'S INSTRUCTION & USER'S MANUAL DC INVERTER MULTIPLE ZONE (59)2 SYMPHONY CHOIR INDOOR UNIT-CEILING CASSETTE (EC) WMMS-12EC-V2B(59) (2) WMMS-18EC-V2B(59) (2) WMMS-24EC-V2B(59) (2) YMGI Group POB 1559 O'Fallon, MO 63366, USA Tel: (866)833-3138 Fax: (866)377-3355 Web Site: www.ymgigroup.com Email: info@ymgigroup.com YMGI, Engineered HVAC & R Products for Maximum Green World and Better Tomorrow Literature Part No.
CONTENTS WELCOME AND PLEASE READ THROUGH MANUALS 2 Dear Customer(s)/end User(s)/unit Purchaser(s)/installer(s)/Contractor(s): INSTALLING TECHNICIAN/CONTRACTOR'S JOBS AND RESPONSIBILITIES 4 Thanks for choosing YMGI products. LIMITED PRODUCT WARRANTY POLICIES 5 LIMITED PRODUCT WARRANTY REGISTRATION CARD 6 WARRANTY AND TECH.
WELCOME AND PLEASE READ THROUGH MANUALS INSTALLING TECHNICIAN/CONTRACTOR'S JOBS AND RESPONSIBILITIES YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! 1. Be sure to hire only one certified, licensed HVAC Company to complete 100% of the installation so that all details of the installation are clear, complete and well taken care of. 2.
LIMITED PRODUCT WARRANTY POLICIES LIMITED PRODUCT WARRANTY REGISTRATION CARD To validate the above warranties, ALL the following conditions must all be fulfilled: 1. The unit was fully (100%) and successfully installed by licensed or certified HVAC technicians. 2. The unit was installed following all NEC, state and local codes. 3. The unit was installed following all instructions and manuals made by YMGI Group. 4.
WARRANTY AND TECH. SUPPORT INTRODUCTION YMGI warrants to the purchaser/owner(s) that YMGI products be free from defects in material and workmanship under the normal use and maintenance, with the standard Limited Product Warranty Policies that comes with the unit or sales package. Ceiling Mount Cassette Systems are designed for high performance, easy installation and service.
NAMES OF PARTS UNIT SPECIFICATIONS Items Unit / Conditions WMMS-12EC-V2B(59)2 WMMS-18EC-V2B(59)2 WMMS-24EC-V2B(59)2 Voltage/Ph/Hz 208-230/1/60 208-230/1/60 208-230/1/60 Power Supply Cooling Capacity (Btu/h) Heating Capacity (Btu/h) SEER 187-253V 187-253V 13900/12000/5200 20800/17200/6200 26500/22800/9600 ID 70/60, OD 47/43F 13000 18100 27400 ID 70/60, OD 17/15F 11600 16200 23800 ID 70/60, OD 17/5F 9000 13100 20600 Btu/h.W 16 16 16 HSPF Btu/h.W 8.2 8.2 8.2 Pints/Hr. 2.
RECOMMENDED TOOLS FOR INSTALLATION INSTALLATION NOTES 1) Mounting Indoor & Outdoor Units and Running Piping/Wiring Location Ruler (Not Shown) Stud-Finder Dry-Wall Saw Electric Drill 3" Hole Saw Drill Extension Hammer Drill and Bit (Not Shown) Measuring Tape Level Flash Light Screw Driver (Phillps and Flat) Hammer Knife Scissors Goggled Glass Mask Gloves Ladder * The air conditioner must be firmly installed and 3~ 4 liability checks must be done every year.
INSTALLATION ACCESSORIES INDOOR UNIT INSTALLATION LOCATION Quantity Notes Drainage hose 1 For indoor side pipe joint 2 Clamp 1 L=200 3 Nylon fastener 4 10 4 Washer 10 5 Paper pad for installaition 1 No. Name 1 Shape For hole 1) Do not place object near the air outlet so that conditioned air can reach the whole room. 2) Be sure to install the indoor unit firmly and horizontly.
INDOOR UNIT INSTALLATION HANGING PREPARATIONS (3) Turn special nut B to adjust the height of the body. (Fig.6) BOLTING THE GRILLE ASSEMBLY TO THE BODY Special nut A (1) Install special nut A, then special nut B onto the hanging bolt. (Fig.6) (2) Raise the body and mount its hooks onto the hanging bolt between the special nuts. (Fig.6) INDOOR UNIT INSTALLATION After installing the body, tighten the nuts.
INDOOR UNIT INSTALLATION 2.Removing the intake grille (1) Slide the two grille stoppers inward, and then open the intake grill. INDOOR UNIT INSTALLATION (3) Open the intake grille so that it is at an angle of 20o to 40o ,and then remove the grille. Tightening torque table: Pipe size Tightening torque (N·m) Pipe size Tightening torque (N·m) Φ6.25 (1/4") 15~20 Φ12.7 (1/2") 50~55 Φ9.52 (3/8") 30~40 Φ15.
WIRING DIAGRAMS WIRING DIAGRAMS WMMS-24EC-V2B(59) 2 WMMS-12EC-V2B(59), WMMS-18EC-V2B(59) (Condensate water) Outdoor Unit Fuse on PCB Fuse on PCB (Condensate water) INSTALLER'S INSTRUCTION INSTALLER'S INSTRUCTION HOW TO CONNECT WIRING TO THE TERMINALS WMMS-12EC-V2B(59)2, WMMS-18EC-V2B(59)2 A. For solid core wiring (or F-cable) (1) Cut the wire end with wire cutters, then strip the insulation about 15/16" (25mm) to expose the solid wire.
TEST AND CHECK ITEMS AFTER INSTALLATION SAFETY CAUTIONS TEST OPERATION READ THE FOLLOWING CAREFULLY BEFORE OPERATION 1. Prepare for test (1) Do not turn on the power switch before all installation is finsihed. Avoid direct air flow to your body and avoid excessive heating or cooling that may make you feel uncomfortable and do harm to your health. (2) Connect wires correctly and firmly. (3) Open the check valve. (4) Remove all dust. 2. Testing (1) Turn on the power switch and press "ON/OFF" button.
REMOTE CONTROL-KEY NAMES & FUNCTIONS REMOTE CONTROL-KEY NAMES & FUNCTIONS NOTE1: This is a general use remote control and can be used for numerous air conditioner styles and models. There may be some buttons on the remote that are not for use with the unit purchased. When these buttons are pressed you may hear a beep sound emitted from the remote. This will not affect the unit staus. NOTE2: Be sure there are no obstructions between the indoor unit and the remote control.
REMOTE CONTROL-KEY NAMES & FUNCTIONS REMOTE CONTROL-KEY NAMES & FUNCTIONS "U-Touch" Feature Is Activated: "U-Touch" Feature Is NOT Activated: Roof Warmer Warm air rises Colder Cold air drops Roof T+△ Temp sensor Wall mount indoor unit (May Feel Colder than You Want in Summer and Winter) H1 Floor T Remete control (Temp sensor) (Feel More Comfortable) YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World ! HEATING: Running lamp and heating symbol are lit.
TROUBLE SHOOTING OPTIMUM OPERATION GENERAL PROCEDURES Adjust the room temperature properly Notice Adjust the room temperature properly for a comfortable environment.
TROUBLE SHOOTING TROUBLE SHOOTING Warning NORMAL OCCURRENCE * In case of something abnormal (such as bad smell), shut off the power switch immediately and contact service center. * Do not repair the unit by yourself. Incorrect service may cause fire, please contact service center. Normal Occurrence When normal occurrence happens Cause and remedy of normal occurrence * The appliance should not be used by children without supervision.
TROUBLE SHOOTING TROUBLE SHOOTING ERROR OR PROTECTION CODE INDICATION NO. Error or protection codes LED (red) When the unit is controlled by wire controller, error or protection codes are as follows: LED Indication LED (yellow) LED (green) Meaning NO.
TROUBLE SHOOTING TROUBLE SHOOTING ERROR CODE LIST No.
CARE AND MAINTENANCE CARE AND MAINTENANCE How to Clean the Air intake WARNING Do not splash water directly to the unit Pull out the power plug before cleaning How to Clean the Air Filter 1) Open the air intake grille. See step 1 of "How to Clean the Air Filter" 2) Remove the air filters. See step 2 of "How to Clean the Air Filter" 3) Open the grille at a 45 Degree angle and then lift, it up to take away. 1) Open the air intake grille and use a phillips head screwdriver to remove the two screws.
CUSTOMER AND TECHNICIAN MUST READ CUSTOMER AND TECHNICIAN MUST READ WHY DOES YMGI GROUP REQUIRE INSTALLATION AND SERVICE TO BE 100% PERFORMED BY LICENSED OR CERTIFIED HVAC TECHNICIAN/ CONTRACTOR? 1) They have the training and experience to accurately and safely install and service your equipment. The equipment runs with high-pressure refrigerant and oil and line-voltage. The copper lines must be installed properly to prevent leakage and foreign substances from contaminating the refrigerant system.
CUSTOMER AND TECHNICIAN MUST READ CUSTOMER AND TECHNICIAN MUST READ Some DIY installations have been successful, but these are exceptions. Most have resulted in equipment failure, due to lack of knowledge and experience. A few of the problems result from DIY's lack of knowledge in the following areas: * Sizing and selecting correct type, size and model of cooling and/or heating equipment. * Sizing and installing correct electric circuit breakers and wires. * Wiring the units correctly and properly.
CUSTOMER AND TECHNICIAN MUST READ CUSTOMER AND TECHNICIAN MUST READ DEFECTIVE UNITS / PARTS / ACCESSORIES-REPAIR OR REPLACEMENT Standard factory warranty does not cover the cost of materials and labor that are incurred at your site. Out of thousands of units sold every year, there may be an occasional instance your product does not operate properly. Reasons of but are not limited to: manufacturing, installation, operation, maintenance and knowledge of operator.
USER NOTES AND INSTALLATION/SERVICE/MAINTENANCE NOTES USER NOTES Put down whatever questions you have or problems you have seen as a unit history: No. Date Notes Asked for Your Technician for Help? Did You Ask YMGI Tech. for Help? INSTALLATION NOTES Put down whatever questions you have or problems you have seen as a unit history: No.
