MrCool DIY E Star Series Operating instructions

Please read this manual carefully before installation and keep it for future reference.
Due to updates and constantly improving performance, the information and instructions within this
manual are subject to change without notice. Please visit www.mrcool.com/documentation to
ensure you have the latest version of this manual.
Version Date: 12-30-20
Installation & Owner’s
Manual
DIY® E Star™ Series

Contents
Page 1 mrcool.com
Safety Precautions
Warnings .................................................................................................................................. 3
Cautions ................................................................................................................................... 4
Parts Overview
Parts Diagram ......................................................................................................................... 5
Display Window ...................................................................................................................... 6
Accessories ................................................................................................................................... 7
Operating Instructions
Operating Temperature ......................................................................................................... 9
Manual Operation ................................................................................................................... 9
Care and Maintenance
DISCLAIMER: You are assuming the risk by handling materials containing refrigerants under pressure, that if not
handled properly, can cause bodilyinjury. If you do notfeel comfortable conducting this installation process,
!
1
2
3

Contents
Indoor Unit Installation ...........15
1. Selecting an installation location .........15
4. Prepare refrigerant piping ....................18
5. Mount indoor unit ..................................18
Outdoor Unit Installation ...... 19
1. Selecting an installation location ......19
2. Install drain joint .................................20
5
Refrigerant Piping Connections......................23
Electrical Connections .....................................32
Test Run..............................................................35
7
8
9
10
4
Page 2
mrcool.com
Electrical and Gas Leak Checks.......................34
Troubleshooting................................................37
.21
1. Prepare Exterior Wall Hole ............................................. 23
2. Unwind Quick Connect® Line Set to necessary length 23
3. Connect Line Set to Indoor Unit ..................................... 24
4. Connect Line Set to Outdoor Unit ................................ 26
5. Opening Refrigerant Valves of Outdoor Unit ............... 28
6. Wrap Piping Connections ............................................... 29
7. Connect drain pipe .......................................................... 30

Page 3
Safety Precautions
mrcool.com
Read Before Using
Incorrect usage may cause serious damage or injury.
.
WARNING
CAUTION
WARNING
DO NOT
DO NOT
unit at all times.
1.
2.
3.
4.
5.
Manual.
!
Safety Precautions
DISCLAIMER:You are assuming the risk by handling materials containing refrigerants under pressure, that if not
handled properly can cause bodilyinjury. If you do notfeel comfortable conducting this installation process,
The symbols below are used throughout this manual to indicate instructions that should
be followed closely or actions that should be avoided to prevent death, injury, and/or property damage.
This symbol indicates ignoring instructions may cause bodily injury, damage
to the unit, or other surrounding property.
When connecting the refrigerant piping, DO NOT allow any other substances or gases enter
the unit. The presence of other gasses or substances will lower the unit’s capacity, and may
cause abnormally high pressure in the operation cycle. This could cause an explosion and/or
injury.
This symbol indicates ignoring instructions may cause death or serious injury
This symbol indicates that you should NEVER perform the indicated action.
Install the unit in a firm, stable location that can support the weight of the unit. If the
installation location cannot support the weight of the unit, it could fall and cause serious injury
and/or damage.

Page 4
Safety Precautions
mrcool.com
Note about Flourinated Gasses:
7.
8
. All wiring must be properly arranged to ensure that the control board cover can close properly.
If the control board cover is not closed properly, it can lead to corrosion, which can cause the
connection points on the terminal to overheat, which car result in fire and/or electrical shock.
10.
DO NOT
combustible materials.
.
DO NOT
DO NOT
DO NOT
DO NOT
1.
2.
1
2.
the unit itself.
3.
4.
5.
If connecting power to fixed wiring, the following must be incorporated within it, in accordance with the wiring
rules; an all-pole disconnection device (which has at least 3 mm of clearances in all poles), and have a leakage
current that may exceed 10mA, the residual current device (RCD) having a rated residual operating current not
exceeding 30mA, and disconnection all must be present.
9.
11.
This appliance is not inteded for use by individuals (including children) with reduced physical, sensory, or mental
capabilities. It is also not intended for use by individuals with a lack of experience or knowledge, unless they have
been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
Children should be supervised at all time to ensure that they do not play with the appliance.
operate your air conditioner in a room where it could be exposed to water, such as a bathroom or laundry
room. Exposure to excessive amounts of water may cause electrical components to short circuit.

Page 5
Safety Precautions
mrcool.com
Electrical
Access
Front Panel
Wall Mounting Plate
Fresh Air Filter
Airinlet rear
Air inlet si e
Air outlet
Air outlet bottom
Outdoor Unit
(Exterior/Condenser)
Air inlet rear
Electrical Access
Air Filter
NOTE: The installation must be performed in accordance with the requirement of local and
national standards. Both power cable and signal cable should be protected by the conduit.
NOTE ON ILLUSTRATIONS
Illustrations in this manual are for explanatory purposes. The actual shape of your unit may vary.
1
Parts Overview
Indoor Unit
(Interior/Air Handler)
Quick Connect® Line Set
(refrigerant pipe)

Overview - Display
mrcool.com
1. Digital Display:
Displays the Temperature Setting when the air conditioner is operational.
Displays the Room Temperature when in FAN mode.
Displays the self-diagnostic codes.
Displays “ ON” for three seconds when theTimer is ON and/or Fresh, Swing, Turbo, or Silence
feature is activated.
Displays “ OF” for three seconds when the Timer is switched OFF .
Displays “ OF” for three seconds when the Fresh, Swing, Turbo, or Silence feature is canceled.
Displays “ dF” when Defrosting operation is active.
Displays “ cF” when Anti-Cold Air feature is active in HEAT mode (when air temp is low).
Displays “ SC” during Self Clean operation (if feature is available).
Displays “ FP” when Freeze Protection is active, operating under 46.4 °F (8 °C) (if feature is available).
2. Units of Measurement:
Displays “ °C” for Celsius or, “
°F” for Fahrenheit. Default units are “°F” (Fahrenheit) and can be
switched by simultaneously pressing and holding both the up and down buttons on the remote
control.
According to the operation mode (heat/cool, etc.), the Units of Measurement will display in
· Under Cool or Dry mode, it always displays as cool colors (Blue).
· Under Heat mode, it always displays as a warm color (Red).
3. Wireless Mode:
Displays when the wireless control feature is activated.
NOTE: A guide for using the infrared remote can be found in the “Remote Control User Manual”
which is included in this literature package.
4. Energy Saving Mode:
Displays when Energy Saving Feature is active. Not available on units not equipped with this feature.
°
ECO
3
4
2
Fig. 1.2
Display (on front panel of indoor unit)

Page 7
Accessories
mrcool.com
1
(Sealant for Wall Sleeve)
(Only for use
when elevated)
1
1
1
1
1
1
Neoprene
Mounting plate
screw
Remote control
Fixing screw for remote
ST2.9 x 10
Dry battery AAA.LR03
Seal
Drain joint
Mounting plate
5
5
2
1
Optional
Parts
2
LOOKS LIKE...
The air conditioning system includes the following accessories. Use all of the
installation parts and accessories to install the air conditioner. Improper installation may
Note: Illustrations are for explanatory purposes only - The actual shape and size may vary.

Page 8mrcool.com
1
1
1
2
1
connectors of the pipe)
1
Accessories
2
(w/ Manual in
Installation & Owner’s
Manual
Remote Control
Manual
Smart Controller Kit
Sound deadening
pads
Quick Connect®
Line Set (refrigerant pipe)
Insulation material
LOOKS LIKE...
Pleaseread this manual carefully before installation and keep it for future reference.
Owner’s Manual
E-Star™ DIY Series
For more details visit www.MrCool.com
For more details visit www.MrCool.com
Pleaseread this manual carefully before installation and keep it for future reference.
Remote Control
User Manual
Plastic Wall Sleeve
1
Drain Pipe
1
16 ft (5 m)
Cardboard
Mounting Plate
Template
1

Page 9
Safety Precautions
mrcool.com
CAUTION
Manual Operation
Units are equipped with a button to run emergency operation mode. This button is used for manual
operation in case the remote control fails, or maintenance is necessary. This can be accessed by
opening the front panel.
Manual
Control
Button
(Forced cooling)
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.
1.
2.
3.
• This button is used for testing purposes only.
Please do not use it unless necessary.
•To restore the remote control operation,
use the remote control directly.
Fig 2.1
2
Operating Instructions
Room Temperature
Cooling Operation Heating Operation Drying Operation
°C~32°C)
63°F~90°F
(0°C~30°C)
32°F~86°F
°C)
50°F~90°F
(0°C~50°C)
32°F~ F
(For the models with low
ambient cooling system)
C~24°C)
5°F~75°F
(0°C~50°C)
32°F~ F
Outdoor
Temperature
NOTE:
1.
2.