Samsung UM27B1C3 Installing and Connecting the Indoor Unit Assembly Piping, Pipe, Torque

Page 38

INSTALLING THE INDOOR UNIT

Installing and Connecting the Indoor Unit Assembly Piping

B

A

There are two refrigerant pipes of different diameters:

◆A smaller one for the liquid refrigerant

◆A larger one for the gas refrigerant

A short length of piping is already fitted to the air conditioner. You must extend this piping using assembly piping (optionally supplied).

The connection procedure for the refrigerant piping varies according to the exit position of the piping from the indoor unit, as seen when facing the air conditioner in position on the wall:

◆Right (A)

◆Left (B)

◆Rear

1With a knife, cut out the appropriate knock-out piece on the rear of the indoor unit (unless you are connecting directly from the rear).

2Smooth the cut edges.

3Remove the protection caps on the pipes and connect the assembly piping to each pipe, tightening the nuts, first manually and then with a wrench, applying the following torque.

Pipe

Outer Diameter

Torque

Liquid refrigerant

6.35 mm(1/4˝)

160kg•cm(11.6ft•lb )

Gas refrigerant

9.52 mm(3/8˝)

300kg•cm(21.8ft•lb )

Gas refrigerant

12.70 mm(1/2˝)

500kg•cm(36.4ft•lb )

➢If the piping must be shortened or extended, refer to page 39.

4Cut off any excess foam insulation.

5If necessary, bend the pipe round, along the bottom of the indoor unit and out through the appropriate hole, taking care to ensure that:

◆The piping does not jut out from the rear of the indoor unit

◆The bending radius is 100mm (4inch) or more

6Pass the piping through the hole in the wall.

7For further details on how to connect up to the outdoor unit and purge the circuit, refer to page 45.

➢The piping will be insulated and fixed permanently into position once the whole installation has been tested for gas leaks; refer to page 47 for further details.

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Contents Installation Manual Manual DE Instrucciones Safety Precautions Contents View of the Unit Indoor UnitOutdoor Unit UM18B1C2 Remote Control Buttons and Display Getting Started Inserting the Remote Control Batteries Installing the Remote Controller HolderWay Function Using with the indoor unitSelecting with the Remote Control To obtain anSelecting the Automatic Operating Mode Cooling Your Room Changing the Room Temperature Quickly Removing Excess Humidity Airing Your Room Adjusting the Air Flow Direction Vertically Adjusting the Air Flow Direction HorizontallySetting the On Timer To Cancel the On TimerSetting the Off Timer To Cancel the Off TimerSetting the Sleep Timer To Cancel the Sleep TimerOperating Recommendations TopicRecommendationIf the air conditioner is used at... Then Temperature and Humidity RangesMode Outdoor Temperature Indoor Temperature Indoor Humidity Cleaning Your Air Conditioner Have switched off the breaker used for the unitSolving Common Problems AUTO, CoolInstalling a Filter Option Technical Specifications ModelUnit operation Installation Manual Purging the Unit Deciding on Where to Install the Air Conditioner Indoor UnitUnit Piping length and the height26,000Btu/h 27,000Btu/h Accessories in the Outdoor Unit Case Air Conditioner and AccessoriesAccessories in the Indoor Unit Case Wall Window frame Fixing the Installation PlateThen follow Steps Purging the Unit Connecting the Assembly Cable Outdoor Unit Installing and Connecting the Indoor Unit Drain Hose To install the drain hose, proceed as followsTorque Installing and Connecting the Indoor Unit Assembly PipingPipe Cutting/Extending the Piping Depth aUM26B1C2 Connecting the Cables to the Outdoor UnitUM18B1C2 UM27B1C318/26 Auxiliary Circuit Breaker Electrical WorkChecking Correct Earthing Fixing the Unit in Position Connecting Up and Purging the Circuit Use Vacuum Pump as shown at the figureTo check for gas leaks on Then, using a leak detector Check Performing Leak TestsPlacing the Indoor Unit in Position Checking and Testing Operations Explaining Operations to the Owner Electronics

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