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ECR International EnviroAir MHA, Installation, Operation And Maintenance Manual, Page: 1 / 34

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ECR International EnviroAir MHA Installation, Operation And Maintenance Manual Download Page 1

An ISO 9001-2008 Certified Company

ECR International, Inc.

2201 Dwyer Avenue, 
Utica NY 13501

web site: www.ecrinternational.com

MZI Series 

 

~16 SEER Inverter 

 Multi-Zone 

Ductless Split Systems

Air Handler (Indoor) Models - MWHA

Condenser (Outdoor) Models - MHA 

 

I

nstallation, Operation and

Maintenance   Manual

 

P/N 240009908, Rev B [04/05/2013]

SET  TEMPERATURE( F)  

ECONOMY

MODE 

ON /  OFF 

FAN SPEED

SWING  

TIMER  ON  

TIMER  OFF  

R ESE T  LOCK

LED  

DISPLAY  

TURBO

F0LLOW
     ME

Summary of Contents for EnviroAir MHA

Page 1: ...nal com MZI Series 16 SEER Inverter Multi Zone Ductless Split Systems Air Handler Indoor Models MWHA Condenser Outdoor Models MHA Installation Operation and Maintenance Manual P N 240009908 Rev B 04 05 2013 SET TEMPERATURE F ECONOMY MODE ON OFF FAN SPEED SWING TIMER ON TIMER OFF RESET LOCK LED DISPLAY TURBO F0LLOW ME ...

Page 2: ...EST RUNNING Test running AIR PURGING Air purging with vacuum pump 14 Safety and leakage check SOCIABLE REMARK Sociable remark SAFETY PRECAUTIONS Warning Caution OPERATING INSTRUCTIONS Identification of parts Operating temperature Manual operation 19 20 21 22 22 24 25 26 28 30 32 17 16 13 10 9 ...

Page 3: ...iring standard regulation and this installation instructions An independent circuit and single outlet must be used If electrical circuit capacity is not enough or defect found in electrical work it will cause electrical shock fire 6 Use the specified cable and connect tightly and clamp the cable so that no external force will be acted on the terminal If connection or fixing is not perfect it will ...

Page 4: ...ng is built over the outdoor unit to prevent direct sunlight or rain exposure make sure that heat radiation from the condenser is not restricted Ensure that the clearance around the back of the unit is more than 30cm The front of the unit should have more than 200cm of clearance and the connection side right side should have more than 60cm of clearance Do not place animals and plants in the path o...

Page 5: ...apping Screw B ST2 9X10 Remote controller Installation Plate Name of Accessories Self tapping Screw A ST3 9X25 Seal for cooling heating models only Drain Joint Magnetic ring Hitch it on the connective cable between indoor unit and outdoor unit after installation Transfer connector Pipe size differ from appliance to appliance To meet different pipe size requirement sometimes the pipe connections ne...

Page 6: ...essary damage to the wall A minimum pipe run of 3 metres is required to minimise vibration excessive noise Two of the A B and C directions should be free from obstructions CAUTION INSTALLATION INSTRUCTIONS 5 CAUTIONS One Two One Three One Four One Five Remote controller Remote controller Remote controller Remote controller More than 15cm Remote controller A B C Air out Loop a connective cable 1 2 ...

Page 7: ...ons according to the diagramdetailed in Fig 5 Drill one 1 hole 65mm slanting slightly to outdoor side 2 Always use wall hole conduit when drilling metal grid metal plate or the like φ 3 Connective Pipe and Drainage Installation 1 Run the drain hose sloping downward Do not install the drain hose as illustrated in Fig 7 Drainage Fig 7 Do not block water flow by a rise Do not put the end of drain hos...

Page 8: ...cable and drain hose with tape securely evenly as shown in Fig 11 Because the condensed water from rear of the indoor unit is gathered in ponding box and is piped out of room Do not put anything else in the box Indoor unit Connective pipe Pipe room Ponding box Wrapping belt Connective cable Drain hose Fig 11 Connect the indoor unit first then the outdoor unit Do not allow the piping to let out fro...

Page 9: ... that it is securely hooked see Fig 12 3 Piping can easily be made by lifting the indoor unit with a cushioning material between the indoor unit and the wall Get it out after finish piping 4 Push the lower part of the indoor unit up on the wall then move the indoor unit from side to side up and down to check if it is hooked securely 4 Indoor unit installation R410A Max 50m R407c R22 Max 10m Max 5m...

Page 10: ... windy area install the unit to prev ent the admission of wind If need suspending installation the installation bracket should accord with technique requirement in the installation bracket diagram The installation wall should be solid brick concrete or the same intensity construction or actions to reinforce damping supporting should be taken The connection between bracket and wall bracket and the ...

Page 11: ... pipes purchased locally 2 Measure the distance between the indoor and the outdoor unit 3 Cut the pipes a little longer than the measured distance 4 Cut the cable 1 5m longer than the pipe length A Cut the pipes and the cable 1 Flaring work Fig 46 B Burr removal 1 Completely remove all burrs from the cut cross section of pipe tube 2 Put the end of the copper tube pipe in a downward direction as yo...

Page 12: ...fuse to install the air conditioner and explain to the client until the problem is solved 2 Power voltage should be in the range of 90 110 of rated voltage 3 The creepage protector and main power switch with a 1 5 times capacity of Max Current of the unit should be installed in power circuit 4 Ensure the air conditioner is grounded well 7 An individual branch circuit and single receptacle used onl...

Page 13: ...ge power on it or electric shock hazard may occur For your safety you should start repairing at least 5 minutes later after the power is disconnected The power is supplied from the Outdoor Unit The Indoor Units are connected with signal wires or power cords are connected reliably and correctly or the air conditioner could not run normally Fig 54 CAUTIONS Make sure to connect the indoor unit A B C ...

Page 14: ... wire by themselves ELECTRICAL WORK L2 S L2 L1 L1 SUPPLY S TO A L2 L1 L1 L2 SUPPLY Y G Y G Y G TO A TO A TO B L1 L2 SUPPLY SUPPLY Y G Y G Y G Y G Y G Y G TO B TO C TO C TO D TO D TO E L1 L2 Model A Model A Model A Model A Model B Magnetic ring not supplied optional part Model B Model B Model B L N TO B TO A L B N B S B L A N A S A Used to hitch to the connective cable of indoor and outdoor units a...

Page 15: ... from a power supply shall be incorporated in the fixed wiring and have an air gap contact separation of at least 3mm in each active phase conductors Air and moisture in the refrigerant system have undesirable effects as indicated below Pressure in the system rises Operating current rises Cooling or heating efficiency drops Moisture in the refrigerant circuit may freeze and block capillary tubing ...

Page 16: ...of the manifold valve 4 Operate the vacuum pump to evacuate After slightly loose theflare nut of the Lo valve on the gas pipe side check that the air is entering Operation noise pump changes and a com meter indicates 0 instead of minus 5 After the evacuation is complete fully close manifold valve and stop the operation of the vacuum pump Make evacuation for 15 minutes or more compound meter indica...

Page 17: ...onnection CAUTION Electrical safety check Gas leak check 1 Apply a soap water or a liquid neutral detergent on the indoor unit connection or outdoor unit connections by a soft brush to check for leakage of the connecting points of th piping If bubbles come out the pipes have leakage 2 Soap water method Leak detector Use the leak detector to check for leakage Safety and leakage check 15 Indoor unit...

Page 18: ...s well 3 When the amient temperature is too low lower than 17 C the unit cannot be controlled by the remote controller to run at cooling mode manual operation can be taken Manual operation is used only when the remote controller is disable or maintenance necessary Press the Manual control button to select the AUTO or COOL the unit will operate under Forced AUTO or COOL mode see User Manual for det...

Page 19: ...e you will find many helpful hints on how to use and maintain your air conditioner properly Just a little preventative care on your part can save you a great deal of time and money over the life of your air conditioner You ll find many answers to common problems in the chart of troubleshooting tips If you review the chart of Troubleshooting Tips first you may not need to call for service 18 ...

Page 20: ...st free of charge to the user B When buying a new product the retailer will take back the old product at least free of charge C The manufacture will take back the old appliance for disposal at least free of charge to the user D As old products contain valuable resources they can be sold to scrap metal dealers Wild disposal of waste in forests and landscapes endangers your health when hazardous sub...

Page 21: ...cause fire and electric shock It may cause explosion fire and burns It may cause electric shock or fire due to heat generation It may cause electric shock It may cause failure of machine or electric shock It contains contaminants and could make you sick It may cause fire and electric shock It may cause electric shock or fire This could damage your health No installation may cause fire and electric...

Page 22: ...nd itioner to preserve preci sion devices food pets plants and art objects It may cause deterioration of quality etc It may cause failure of product or fire Do not use for special purposes Turn off the main power switch when not sing the unit for a long time u If water enters the unit turn the unit off and disconnect the power contact a qualified service technician It may cause failure of applianc...

Page 23: ... four 9 10 Drain hose refrigerant connecting pipe 11 Connective cable 12 Stop valve 13 Fan hood 10 11 12 13 1 Panel frame 2 Rear air intake grille 3 Front panel 4 Air Purifying filter Air filter behind 5 Horizontal louver 6 LCD display window 7 Vertical louver 8 Manual control button behind 9 Remote controller holder 22 ...

Page 24: ...display Displayed during Timer operation TURBO operation display Displayed when select TURBO function on cooling operation or on heating operation DIGITAL DISPLAY Displays the current setting temper ature when the air conditioner is in operation FAN SPEED display Displayed the selected fan speed LOW MED and HIGH OPERATING INSTRUCTIONS This display is separated into five zones The zones illuminate ...

Page 25: ...d COOL operation 1 3 2 NOTE The unit must be turned off before operating the manual control button If the unit is operational continue pressing the manual control button until the unit is off Mode Temperature Room temperature Outdoor temperature 1 Optimum performance will be achieved within these operating temperatures If air conditioner is used outside of the above conditions certain safety prote...

Page 26: ...r can be adjusted by using the remote controller Please refer to the REMOTE CONTROLLER OPERATION MANUAL for details IMPORTANT Do not operate the air conditioner for long periods with the air flow direction set downward in cooling or dehumidifying mode Otherwise condensation may occur on the surface of the horizontal louver causing moisture to drop on to the floor or on furnishings Do not move the ...

Page 27: ...r will automatically increase cooling or decrease heating 1 per hour The set temperature will be steady 2 hours later And the air conditioner will be timer off in 7 hours The fan speed will be automatically controlled This feature can maintain the most comfortable temperature and save more energy for you The fan speed will be automatically controlled under dry operation During the dry operation if...

Page 28: ...de the other units can operate under heat mode only OPERATING INSTRUCTIONS Operation mode selection To achieve optimal performance please note the following Adjust the air flow direction correctly so that it is not directed on people Adjust the temperature to achieve the highest comfort level Do not adjust the unit to excessive temperature levels Close doors and windows on COOL or HEAT modes or pe...

Page 29: ...e Turn the system off before cleaning To clean wipe with a soft dry cloth Do not use bleach or abrasives NOTE Supply power must be disconnectd before cleaning the indoor unit Filter Handle A clogged air filter reduces the cooling efficiency of this unit Please clean the filter once every 2 weeks 1 Lift the indoor unit panel up to an angle until it stops with a clicking sound 2 Take hold of the han...

Page 30: ...ur when handling sharp metal edges Do not use water to clean inside the air conditioner Exposure to water can destroy the insulation leading to possible electric shock When cleaning the unit first make sure that the power and circuit breaker are turned off Caution 4 Remove the Silver Ion filter Bio filter Vitamin C filter from its support frame The installation and removing method of the air fresh...

Page 31: ...unning when defrosting Cooling and heating models only Frost may be generated on the outdoor unit during heat cycle when outdoor temperature is low and humidity is high resulting in lower heating efficiency of the air conditioner During this condition air conditioner will stop heating operation and start defrosting automatically The time to defrost may vary from 4 to 10 minutes according to the ou...

Page 32: ...The air conditioner draws in heat from the outdoor unit and releases it via the indoor unit during heating operation When the outdoor temperature falls heat drawn in by the air conditioner decreases accordingly At the same time heat loading of the air conditioner increases due to larger difference between indoor and outdoor temperature If a comfortable temperature can t be achieved by the air cond...

Page 33: ...d Check that plug is securely in wall receptacle Replace the fuse Replace the battery Wait or cancel timer setting Set temperature correctly For detailed method please refer to Remote controller instruction section Clean the air filter Close the doors or windows Clear obstructions away first then restart the unit Wait Inappropriate temperature setting Air filter is blocked Doors or Windows are ope...

Page 34: ...2201 Dwyer Avenue Utica NY 13501 website www enviromaster com ...

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