Friedrich MW12C1H, MW09C1H, MR09C1H, MR12C1H manual Installing Indoor Unit

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Spanner
Indoor unit piping
Torque wrench
Taper nut Piping
Mounting plate
Fig.8

Installation Manual

NOTE:

All interconnecting wiring between indoor and outdoor unit must be performed by a a licenced electrical contractor

The electric wiring must be correctly connected.Improper connection may cause spare parts malfunction.

Tighten the terminal screws adequately to prevent loosening.

After tightening the screws, slightly pull the wire and confirm whether it is firm or not.

Ensure the electrical connections are properly earthed to prevent electrical shocks.

Ensure all wiring connections are secure and the cover plates are reinstalled properly.Poor installations that allow dust or moisture incursion may cause fire or electrocution.

Installing Indoor Unit

The piping can be output from right, right rear, left or left rear.

When routing the piping and wiring from the left or right side of indoor unit, cut off the tailings from the chassis as necessary(As shown in Fig.7)

Cut off the tailings 1 when routing the wiring only;

Cut off the tailings 1 and tailings 2 when routing both the wiring and piping.

Take out the piping from body case, wrap the piping, power cords, drain hose with the tape and make them through the piping hole. (As shown in Fig.8)

Hang the mounting slots of the indoor unit on the upper hooks of the mounting plate and check if it is firm enough.(As shown in Fig.9)

The height of the installed location should be 6ft8ft or more from the floor.

 

 

External connection

 

Gas side pipe

electric wire

 

 

 

Liquid side piping

Tailing 2

 

 

 

Tailing 1

Gas side piping

 

 

insulation

 

Liquid side

Fig.7

 

 

Piping insulation

Finally wrap it

 

 

with tape

Water drainage pipe

 

 

Left

 

Right

 

Left rear

Right rear

Fixing hook

Mounting plate

Fig.9

Installing Connection Pipe

Align the center of the piping flare with the relevant valve.

Screw in the flare nut by hand and then tighten the nut with spanner and torque wrench referring to the following:

Hex nut diameter Tightening torque (lb ft)

11 ~ 14.7

22.8 ~ 25.8

36.9 ~ 40.6

44.3 ~ 47.9

51.6 ~ 55.3

NOTE: Firstly connect the connection pipe to indoor unit, then to outdoor unit; pay attention to the piping bending, do not damage the connection pipe; ensure the joint nut is adequately tightened, otherwise it may cause leakage.

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Contents Split Type Room AIR Conditioner Wall Mounted Type Table of Contents Model and product code Summary and features Important Safety Information Refrigeration System Repair Hazards Property Damage Hazards Specifications 115 MR09C1H MR12C1H Appending date Expanded capacity data tables for both cooling and heating Operation Characteristic Curve 09KUnits Construction Views Refrigerant System Diagram Electrical wiring Electrical DateCooling Models TOP View Bottom View Bottom View Remote Control Operations Function and ControlAuto Timer on Displayed. If the light is tunrned off Disappears Replacement of Batteries Description of Each Control Operation Function and Control Function and Control Setting+ 2, medium speed Tring ≤ Tsetting 2, low speed P2 Maximum cooling and heating Detection of temperature sensor malfunction Frequency Control3-minutes Standby Compressor Protection FunctionInput Current Control Discharge Pipe ControlFreeze-up Protection Control Detail Conditions for Start Controlling Fan Control Tap Control in indoor/outdoor unit silent operationImportant Notices Ground requirements Installation dimension diagram Boring Piping Hole Installing Indoor Unit Electric wiring Installing Outdoor UnitCheck after Installation Check after Installation and Operation TestInstallation and Maintenance of Healthy FilterOptional Installation of Healthy FilterTroubleshooting Can not start up Malfunction of four-way valve Is not on, then replace the protector Adjust support washer of compressor, Troubleshooting YELLOW-LED4 GREEN-LED2 RED-LED3 Analysis or processing of some of the malfunction display How to Check simply the main part Troubleshooting Comp Page AP1 Troubleshooting Is stop time of the compressor longer than 3 minutes? Minutes after the complete unit is powered off Start If the fault is eliminated? Troubleshooting Flow chart for outdoor communitcation circuit detecting Troubleshooting Guide Troubleshooting Guide Temp Resistance 2-way, 3-way Valve Appearance Way Valve Liquid SideProcedure Close Close Open Close Balance Refrigerant of the 3-way Valve Procedure EvacuationGas Charging After EvacuationRemoval Procedure Removal Procedure Removal Procedure Removal Procedure of Outdoor Unit Removal Procedure Removal Procedure MW09C1H / MW12C1H Exploded Diagram MW09C1H Parts List MW12C1H Parts List MR09C1H Exploded Diagram MR09C1H Parts List MR12C1H Exploded View MR12C1H Parts List Page Friedrich AIR Conditioning CO