MrCool DIY E Star Series Technisches Handbuch

www.mrcool.com

DIY

E Star™Series

3RD GEN Do-It-Yourself Ductless Mini-Split Heat Pump A/C

Easy Do-It-Yourself installation

with our Quick Connect®line set

Control your unit from anywhere

with our Smartphone App

7 Year Compressor &

5 Year Parts Warranty

SMART CONTROLLER

Note: This guide is for convenience.

Please refer to the more detailed installation

instructions in the manual as needed.

STEP 1 - inside STEP 3 - inside

STEP 2 - inside

1. Drill screw holes at the indicated points into

studs.

2. Remove the bracket from the rear of the interior

air handler.

3. Screw the metal bracket to the wall according to

the template.

4. Use a level to

ensure the

mounting plate is

ﬂush and level.

1. Locate the wall template.

2. Place the template on the wall at the installation

location.

3. Use the template

to mark the drill

points and wall hole

site.

4. Remove the template.

Wall

Indoor Outdoor

0.2 - 0.3in

(5 - 7 mm)

1. Drill a 3.5 inch diameter hole through the wall, at

a slightly downward angle, to accommodate the

line set, condensate drain line and communication

cable to the exterior condenser.

2. Use the vinyl tape to wrap the line set,

condensate drain line and communication cable

into a bundle. The drain MUST be on the bottom.

3. Push the bundle through the wall hole.

condensate

drain line

1 2

4. Snap the air handler onto the wall bracket.

STEP 3 - continued

STEP 4 - outside

STEP 4 - continued

1. Place outside condenser unit ﬁrmly on the

ground or attach it to a secure metal wall bracket

or pad. Drain pipe is not required and can be

installed as necessary only if elevated.

2. Remove the plastic seals from the indoor

handler refrigerant lines.

3. Carefully unroll the amount of Quick Connect®

line set needed to connect the indoor handler

ﬁttings and the outside condenser. Leave the coiled

portion stored near the condenser.

4. Align the Quick Connect® refrigerant lines to the

matching indoor handler ﬁttings. Tighten the ﬁrst

few threads by hand.

5. Using open ended wrenches (i.e. crescent or

adjustable): hold the points marked “1” and turn

the nuts only at the points marked “2” (Select the

appropriate wrench according to the dimensions of

the connector).

6. Ensure that the screw connectors do not skew

while working quickly to tighten them.

Ground Installed:

12 in (30 cm)

Bracket Installed:

6 in (15 cm)

clearance between

back and wall

79in (200cm)

in front

12in (30cm)

on left

24in (60cm)

above

24in (60cm)

on right

1. Carefully roll the excess tubing and place it

behind the condenser.

2. Attach the bundle connections to the outside

condenser.

STEP 5 - outside

Carefully unroll to indoor

handler connection

Connect directly to

exterior condensor

Keep excess coiled

Radius

3. Using two crescent or adjustable wrenches,

screw the quick connect components together. Use

one to hold the valve and keep it from twisting and

the other to

tighten the ﬁtting.

4. See manual for

tool and torque

requirements .

Improper

connection can

void warranty.

1. Remove the brass caps from the valves on the

exterior condenser unit.

2. Use an Allen Wrench to open the valve until it

stops turning. Be sure not to exert excessive force

on the valve. You may hear a soft hissing sound as

a slight amount of R-410a refrigerant exits the

condenser.

3. Apply soapy water or leak detection spray to the

Quick Connect® ﬁttings. If you see bubbles, this

indicates there is a leak. Tighten the connection

accordingly until the bubbles are gone.

STEP 6 - outside

STEP 8 - outside

1. Remove the electrical cover.

2. Wires and terminals that are numbered should

be matched and connected accordingly.

3. If the unit is a 115 volt system (12K), hook to

terminals _L1_ and __N and Ground.

4. If the unit is a 208/230 volt system (all other

sizes), hook to terminals _L1_ and _L2_ and Ground.

Refer to the diagrams / photo at the bottom left.

WARNING

BEFORE PERFORMING ANY ELECTRICAL WORK, TURN OFF ALL

POWER TO THE SYSTEM.

1. Wire colors of this series / model may diﬀer from previous

models, other series and general conventions.

2. All wiring must be performed in accordance with the

wiring diagrams shown here and all municipal, state and

federal regulations.

4. Be sure whether your unit is 115 volt (12K only) or 208/230

volt (all other sizes). Incorrect voltage can cause serious

damage to the system and void the warranty.

5. A certiﬁed electrician is required to supply power from a

disconnect of an appropriate rating - see manual.

STEP 7 - outside

GREEN Y/G

32 L1L21

21 L1L2

WIRE CONNECTING DIAGRAM

OUTDOOR UNIT TERMINAL

TO INDOOR UNIT 208/230V

POWERSUPPLY

GREEN Y/G

32 L N1

21 L N

OUTDOOR UNIT TERMINAL

TO INDOOR UNIT 115V

POWERSUPPLY

WIRE CONNECTING DIAGRAM 12K

models

only

all

other

models

RED

WHITE

BLACK

RED

WHITE

wrap from

bottom to top

to ensure tape

overlap sheds

water

wrapped from

inside unit

Quick Connect

connections

keep line excess

bundled and coiled

then wrap together

wrap the Quick Connect®

connections with the black

sound deadening pads.

1. Place the provided batteries in the remote

control.

2. Press the Power button on the remote control.

3. The MrCool®DIY®Series should activate

automatically.

4. To use the MRCOOL® Smartphone App refer to

the Smart Controller Module instructions included

in the box.

STEP 8 - continued

STEP 9 - inside

DIY

E Star™Series

3RD GEN Do-It-Yourself Ductless Mini-Split Heat Pump A/C

1. To protect Quick Connect® connections and

reduce vibration, wrap them with the black sound

deadening pads. Pack tightly before wrapping the

connections with the white pipe insulation. Refer to

the diagram on the following page.

2. To protect pipe insulation, use the vinyl tape to

wrap the Quick Connect® lines and communication

cable snugly together from bottom to top (to shed

water). Wrap excess line set together in a coil

beside the condenser. Refer to the diagram on the

following page.

3. To further improve overall appearance and long

term durability it is recommended to install using

MRCOOL®LineGuard®

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