YMGI LIT-WMMS-(56)-DC IVTR Installation Instructions Manual Download Page 15

UNIT OPERA

TION

P28 OF 38

OPERATION OF REMOTE CONTROL

OPERATION OF REMOTE CONTROL

EMERGENCY OPERATION

When the wireless remote control is lost or damaged, please use the manual switch, at this time, it is running in 
Auto Run mode that will not change the temperature setting value and fan speed.

The manual switch can be operated as follow:

* At operation: When the unit has stopped running, press ON/OFF button, unit 
  will enter into AUTO RUN mode. The microcomputer will accord to the room 
  temperature to select the (COOL, HEAT, FAN) mode automatically, to obtain 
  the comfortable effect.

* At stopping: When the unit is running, press the ON/OFF button of the manual 
  switch, the unit will stop work.

The code switch can be operated as follow:

* At operation: When the unit is stopped running, adjust the code switch to AUTO, 
  the unit will enter into AUTO RUN mode. The microcomputer will accord to the 
  room temperature to select the (COOL, HEAT, FAN) mode automatically, to 
  obtain the comfortable effect.

* At stopping: When the unit is running, adjusts the code switch to STOP position, 
  the unit will stop work.

AUTO/STOP

Manual Switch

Code Switch

AUTO

TEST

RUN

STOP

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

UNIT OPERA

TION

P27 OF 38

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

REMOTE CONTROL-BUTTON NAME & FUNCTIONS

INTRODUCTION FOR SPECIAL FUNCTION

This function indicates that there is moisture on the evaporator of the indoor unit will be blowed after the unit has 
stopped to avoid mold.
1) Having set blow function on: After turning off the unit by pressing ON/OFF button indoor fan will continue 
    running for about 10 min. at low speed. In this period, press blow button to stop indoor fan directly.
2) Having set blow function off: After turning off the unit by pressing ON/OFF button, the complete unit will be off 
    directly.

About blow function

About AUTO RUN

When AUTO RUN mode is selected, the setting temperature will not be displayed on the LCD, the unit will be in 
accordance with the room temp. automatically to select the suitable running method and to make ambient 
comfortable.

* About turbo function

At the start of this function, the unit will blow at super high speed to cool or heat quickly so that the room temp. 
approaches the preset temp. as soon as possible.

1) Press swing up and down button continuously more than 2s,the main unit will swing back and forth from up 
    to down, and then loosen the button, the unit will stop swinging and present position of guide louver will be 
    kept immediately.
2) Under swing up and down mode, when the status is switched from off to    , if press this button again 2s later, 
        status will switch to off status directly; if press this button again within 2s,the change of swing status will 
    also depend on the circulation sequence stated above.

* About swing up and down

Press +and - buttons simultaneously to lock or unlock the keyboard. If the remote controller is locked, the icon 
    will be displayed on it, in which case, press any button, the mark will  flicker for three times. If the keyboard 
is unlocked, the mark will disappear.

* About lock

SYMBOL DISPLAY

When power is first applied to the unit but the power has not been turned on by the remote control, then the red 

power light only is displayed. When the unit has been powered on by the remote control then the running LED is 

lit and the current running mode symbol is displayed at the same time.

COOLING:

  Running symbol and cooling symbol are lit.

HEATING:

   Running lamp and heating symbol are lit.

DRY:

  Running lamp and dry lamp are lit

FAN:

  Running lamp and fan lamp are lit.

AUTO:

   Auto lamp, running lamp and actual running mode are lit.

ALPHA NUMERIC DISPLAY

O

O

The setting temperature range for the unit is 61  to 86 F.  

O

O

* Under AUTO mode unit will display 77 F for cooling and 68 F for heating modes.


UNIT DEFROSTING CYCLE

While the unit is running in HEAT mode during colder weather, frost can build up on the outdoor coil.  This is 
common on all heat pump units made by all manufactures.  If the unit is running and the automatic defrost mode 
is enacted the indoor unit will stop running and display an H1 code.  Once the defrost cycle is finished and the 
outdoor coil is defrosted the indoor unit will start to run again in the mode that it was last set up for.  

ON DEMAND DEFROSTING

If at any time you would like the send the unit into the defrost cycle, you can choose to by turning the remote 
controller off and pressing the BLOW and the MODE buttons simultaneously.  You will see the symbol of HI 
appear on the remote.  To stop the defrost cycle simply press the BLOW and MODE buttons again and the H1 
will disappear from the remote screen.

CHANGING BATTERIES AND NOTICES

1) Press slightly along the arrowhead direction to push the back cover open on remote control.
2) Take out the old batteries. (As show in figure)
3) Insert two new AAA1.5V dry batteries, and pay attention to the polarity. (As show in figure)
4) Attach the back cover of wireless remote control. (As show in figure)

NOTE: 

When changing the batteries, do not use the old or 
different batteries, otherwise, it can cause the 
malfunction of the wireless remote control.

The operation should be in its receiving range.

It should be placed at where is 1m away from the TV set or stereo sound sets.

If the wireless remote control can not operate normally, please take them out, after 30s later and reinsert, if they 
cannot normally run, please change them.

If the wireless remote control will not be used for and 
extended period of time, it is recommended to leave 
the batteries out as this could cause leakage from the 
batteries. This will damage the remote control.

Sketch map for 

changing batteries

Summary of Contents for LIT-WMMS-(56)-DC IVTR

Page 1: ...igroup com This product is designed and manufactured free from defects in material and workmanship for normal use and maintenance Installation operation maintenance and service shall follow profession...

Page 2: ...MGI technical support division directly at Dear Customer s End User s Unit Purchaser s Installer s Contractor s Thanks for choosing YMGI products The YMGI equipment you purchased is either a split typ...

Page 3: ...e humidity ranges installation operation maintenance service warranty parts and so on 4 Properly select correct most suitable YMGI product models of units and accessories for your HVAC applications jo...

Page 4: ...he installation 5 Supply electrical 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 out...

Page 5: ...ls to do these calculations correctly and get your approval before purchasing the air conditioner or heat pump equipment Any problems due to improper installing of the air conditioner heat pump system...

Page 6: ...ing the air conditioner for a long time Otherwise the accumulated dust may cause fire or electric shock Select the most appropriate temperature Don t leave windows and doors open for a long time while...

Page 7: ...lities or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety 5 Children should be supervis...

Page 8: ...r 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 Goggl...

Page 9: ...PIPE 1 For well draining the drain hose should be placed at a downward slant 2 Do not wrench or bend the drain hose or flood its end by water 3 When the long drainage hose passing through indoor shoul...

Page 10: ...ing the electric wire if the wire length is not enough please contact with the authorized service shop to buy a exclusive electric wire that is long enough and the joint on the wire are not allowed Th...

Page 11: ...AWG 12 and it should accord with UL4703 2 The MC 4 connectors should be assembled to the PV wires and the other side of the PV wires should be assembled with spade terminals ASSEMBLY OF MC 4 CONNECTO...

Page 12: ...the operation 2 Press MODE button to select the COOL HEAT not available for cooling only unit is FAN and so on to check All the functions to make sure the unit functions correctly and properly Refrig...

Page 13: ...URBO MODE INCREASE Temp Time TIMER ON TIMER OFF LIGHT SLEEP TEMP U TOUCH NOT USED NOTE2 Be sure there are no obstructions between the indoor unit and the remote control Do not drop or allow any liquid...

Page 14: ...emote press the TIMER ON button once more and the word ON will stop blinking and stay on the remote The time you would like the unit to turn on is now set TIMER OFF BUTTON This allows you to set the t...

Page 15: ...he change of swing status will also depend on the circulation sequence stated above About swing up and down Press and buttons simultaneously to lock or unlock the keyboard If the remote controller is...

Page 16: ...isconnect the electrical power at outdoor unit Before cleaning the unit t Never sprinkle water on the indoor unit and the outdoor unit Volatile liquid gasoline or the like will damage the unit So wipe...

Page 17: ...essure refrigerant and oil and line voltage The copper lines must be installed properly to prevent leakage and foreign substances from contaminating the refrigerant system 2 You will save money in the...

Page 18: ...rior to paying the contractor in full The cost of not having your unit installed properly can be more expensive than spending a little extra money that hiring the right contractor will cost Protect yo...

Page 19: ...ur unit We will be happy to assist you with any questions you may have concerning the functions of your new unit 1 Part repair or replacement after trouble shooting This is the most common and general...

Page 20: ...r installation instruction manual or come separately in the unit packaging box envelope If for any reason they are not included with your shipment contact our sales or customer service to request a co...

Page 21: ...P39 OF 40 YMGI Engineered Comfort Products for A Sustainable and Efficient Green World P40 OF 40 YMGI Engineered Comfort Products for A Sustainable and Efficient Green World...

Reviews: