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Friedrich MD18Y3JM

18,000 BTU Indoor Concealed Duct Interior Unit for Mini Split Systems - Indoor Unit

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*IMPORTANT! This is an indoor air handler ONLY.  You must have a matching Friedrich outdoor condenser to complete a functioning system.*

Why choose Concealed Duct?

Concealed duct units are mounted in the ceiling of rooms where minimal visibility of the heating and cooling system is desired. Ideally suited for applications where wall space is limited or the ceiling is the preferred installation location with only a small vent opening visible in the ceiling. Powerful, quiet compact and energy efficient, the installation will require minimal ductwork.

Concealed Duct Overview

Like other ductless models, a concealed duct system consists of two parts; an outdoor condensing unit, and an indoor air handler installed in the ceiling or a furr down. The indoor unit and outdoor unit are connected by refrigerant and electrical lines that run through a 3" opening in an exterior wall. This system requires a licensed HVAC technician to connect the lines between the indoor and outdoor components.

The advantages of Friedrich Precision Inverter Technology

Friedrich ceiling cassette ductless split systems feature variable speed compressors and fans (called Inverter Technology), which reach the desired temperature faster, maintain it more accurately and reduce energy consumption with fewer compressor startups and shutdowns. Friedrich Precision Inverter uses 1 Hz increments for near zero wasted energy.

Features

  • Inverter technology (variable speed compressor)
  • Internal condensate pump included- up to 18-1/2” lift
  • Cooling mode
  • Dehumidifying mode
  • 3 Fan speeds+
  • 24-hour on-off timer
  • Auto restart
  • Auto changeover
  • Sleep mode
  • Control lock function
  • External Static Pressure Range (ESP)
  • - 24,000 (0.1 - 0.78) WC
  • - 36,000 (0.15 - 0.6) WC

 

 

Indoor Air Handler Type

Indoor air handlers come in three basic types: - Wall Mounted is easiest to install - Ceiling Cassettes are unobtrusive and offer some ducting to other rooms - Concealed Ducts mount behind walls, above ceilings or under floors and handle multiple rooms

Indoor Air Handler Type
Concealed Duct
Cooling Capacity

Not sure what size you need? Feel free to use our easy sizing calculator.

Cooling Capacity
18000 BTU
Heating Capacity

The amount of heat, rated in BTUs that the item can produce.

Heating Capacity
20200 BTU
SEER

Seasonal Energy Efficiency Ratio (SEER) is a measure of cooling over an entire season. It is determined by comparing the amount of cooling produced in BTUs in relation to the amount of electricity used. A higher SEER means a system is more energy efficient and would provide comfort at a lower utility cost than a lower SEER system.

SEER
17.5 SEER
Airflow Capacity
530 CFM
Refrigerant

Inside air conditioning systems are liquid/gas refrigerant. There are two types of this refrigerant available for use, R-22 (more commonly known as Freon), and a newer alternative R-410A.

An air conditioning system does not consume refrigerant, but reuses it. As long as there are no leaks in the refrigerant circuit, there is no need to ever add more refrigerant to an air conditioning system.

Although R-22 is an effective refrigerant, if it is released into the atmosphere it can contribute to the depletion of the Earth’s ozone layer. The EPA has mandated the phasing out the use of R-22. It is being replaced by R-410A.

As of 2010, manufacturers are required to make all new air conditioners with R-410A. However, R-22 is still available for sale in existing pre-2010-manufactured equipment, and for use in servicing existing R-22 equipment. By 2020, R-22 will no longer be manufactured, but will still be recycled and available for sale.

Refrigerant
R-410A
Moisture Removal

The amount of water that can be removed from the air rated in pints per hour.

Moisture Removal
4.2 Pts/Hr
Line Set Connection Type

There are two main types of connections for HVAC products brazed and flared. Brazed connections are typically used in standard split systems, and flare connections are typically used on mini splits and can be connected using a wrench.

Line Set Connection Type
Flare
ENERGY STAR® Qualified

Products earn the ENERGY STAR label by meeting the energy efficiency requirements set forth in ENERGY STAR specifications. The EPA establishes these specifications based on the following set of principles:

  • Product categories must contribute significant energy savings nationwide.
  • Qualified products must deliver the features and performance demanded by consumers, in addition to increased energy efficiency.
  • If the qualified product costs more than a conventional, less-efficient counterpart, purchasers will recover their investment in increased energy efficiency through utility bill savings, within a reasonable period of time.
  • Energy efficiency can be achieved through broadly available, non-proprietary technologies offered by multiple manufacturers.
  • Product energy consumption and performance can be measured and verified with testing.
  • Labeling would effectively differentiate products and be visible for purchasers.

ENERGY STAR® Qualified
No
Liquid Line Connection Size

The outside diameter of the liquid line pipe (the inside diameter of the connection on the equipment).

Liquid Line Connection Size
1/4 Inches
Suction Line Connection Size

The outside diameter of the suction line (the inside diameter of the connection on the equipment).

Suction Line Connection Size
1/2 Inches
Sound Rating, Indoor

The noise produced by the unit rated in decibels. 30dbs is equivalent to a whisper, 60dbs is equivalent to a normal conversation, 90 dbs is equivalent to a lawn mower.

Sound Rating, Indoor
29 / 31 / 34 Decibels
Product Weight
58 lbs
Shipping Weight
65 lbs
Width
43 5/16 Inches
Depth
22 5/8 Inches
Height
7 15/32 Inches
Voltage
208 / 230 Volts
Voltage Phase
1
Compressor Warranty
7 Years
Parts Warranty
5 Year
REQUIRED COMPONENTS FOR INSTALLATION
Alpine Mini Split Wire
Alpine MW4/25

25' 14/4 Stranded Ductless Mini-Split Wire - Non-Shielded (600 Volt)

$29.99 Qty:
Coiled 20ft Drain Hose
Rectorseal 83003

5/8in Inner Diameter Drain Hose, 20ft Length

$27.99 Qty:
Hitachi LS143814-15 Line Set
Alpine 40880150B3B6

15 Foot 1/2 SL 1/4 LL Ductless Mini-Split Line Set

$87.99 Qty:
Hitachi LS143814-15 Line Set
Alpine 40880250B3B6

25 Foot 1/2 SL 1/4 LL Ductless Mini-Split Line Set

$117.99 Qty:
Hitachi LS143814-15 Line Set
Alpine 40880350B3B6

35 Foot 1/2 SL 1/4 LL Ductless Mini-Split Line Set

$138.99 Qty:
Hitachi LS143814-15 Line Set
Alpine 40880500B3B6

50 Foot 1/2 SL 1/4 LL Ductless Mini-Split Line Set

$176.99 Qty:
AC INSTALLATION SUPPLIES
Alpine Mini Split Wire
Alpine MW4/50

50' 14/4 Stranded Ductless Mini-Split Wire - Non-Shielded (600 Volt)

$49.99 Qty:
ACCESSORIES FOR MINI-SPLIT SYSTEMS
Large drain hose coiled
Rectorseal 83002

5/8in Coil Standard Drain Hose 164ft Length

$67.99 Qty:
Large drain hose coiled
Rectorseal 83004

5/8in Coil UV Resistant Drain Hose 164ft Length

$80.99 Qty:
AIR BOOSTERS
as1
Tjernlund AS1

75 CFM Room-to-Room Ventilator, 120 VAC Hardwired

$134.99 Qty:
as1
Tjernlund AS1P

75 CFM Room-to-Room Ventilator, 120 VAC Plug-in

$189.99 Qty:
AIR CONDITIONING SYSTEM PROTECTORS
Diversitech CGB-AER Main
Diversitech CGB-AER

Coil Guard - Aerosol, Blue

$21.99 Qty:
MINI-SPLIT SYSTEM LINE SETS
NoKink jpg
Rectorseal 66731

NoKink™ Flexible Refrigerant Line Connector, 1/4 Inch

$53.99 Qty:
NoKink jpg
Rectorseal 66737

NoKink™ Flexible Refrigerant Line Connector, 1/2 Inch

$62.99 Qty:
OUTDOOR LINE SET COVERS
Diversitech 230-CP
DiversiTech 230-CP4

Coupling for 4" SpeediChannel™ Line Set Covers

$6.99 Qty:
Diversitech 230-D6
DiversiTech 230-D4

78" Long, 4" SpeediChannel™ Line Set Cover

$34.99 Qty:
Diversitech 230-D6
DiversiTech 230-D4 (6-Pack)

(6-Pack) 78" Long, 4" SpeediChannel™ Line Set Cover

$202.99 Qty:
Diversitech 230-DC
DiversiTech 230-DC4

End Cap for 4" SpeediChannel™ Line Set Covers

$4.99 Qty:
Diversitech 230-DCLIP
DiversiTech 230-DCLIP-10

(10-Pack) SpeediClips™

$4.99 Qty:
Diversitech 230-DE
DiversiTech 230-DE4

End Fitting for 4" SpeediChannel™ Line Set Covers

$7.99 Qty:
Diversitech 230-EIN
DiversiTech 230-EIN4

90° Outside Elbow for 4" SpeediChannel™ Line Set Covers

$15.99 Qty:
Diversitech 230-FB
DiversiTech 230-FB4

90° Flat Bend for 4" SpeediChannel™ Line Set Covers

$15.99 Qty:
Diversitech 230-FB45
DiversiTech 230-FB454

45° Flat Bend for 4" SpeediChannel™ Line Set Covers

$15.99 Qty:
Diversitech
DiversiTech 230-FJ4

Flex Joint for 4" SpeediChannel™ Line Set Covers

$14.99 Qty:
Diversitech 230-FR
DiversiTech 230-FR4

Flat Wall Escutcheon for 4" SpeediChannel™ Line Set Covers

$4.99 Qty:
Diversitech 230-LFB
DiversiTech 230-LFB4

90° Long Bend for 4" SpeediChannel™ Line Set Covers

$13.99 Qty:
Diversitech 230-WC
DiversiTech 230-WC4

Wall Connection Piece for 4" SpeediChannel™ Line Set Covers

$15.99 Qty:
Diversitech 230-WR
DiversiTech 230-WR4

Non-Flat Wall Escutcheon for 4" SpeediChannel™ Line Set Covers

$5.99 Qty:
Diversitech 230-WS2
DiversiTech 230-WS2

2.5" Wall Sleeve for SpeediChannel™ Line Set Covers

$9.99 Qty:
Slimduct_Kit_White
DiversiTech DSCP-24

Outdoor Line Set Cover Kit, 4" x 2-3/4" - For Attic-Installed System

$109.99 Qty:
TOOLS
Diversitech 358-20
Diversitech 358-20

Foam-Plus™ Foaming Coil Cleaner – 19 oz. Aerosol

$9.99 Qty:
HDT303K
Diversitech HDT303K

Deluxe Digital Thermometer

$24.99 Qty:
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Call our product specialists at 800-865-5931
Mon-Tue 7am-7pm, Wed-Fri 7:30am-6:30pm, Sat 9am-2pm CT
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