Heat Controller MMH18DA-1 manual Flaring work, Cut the pipes, Burrs removal, Putting flare nuts on

Page 11

Flaring Work and Connection of Piping

Flaring Work and Connection of Piping

Flaringwork

Main cause for gas leakage is due to defect in flaring work. Carry out the correct flaring work by using the following procedures.

Cut the pipes

1.Use the piping kit accessory or the pipes purchased locally.

2.Measure the distance between the indoor and the outdoor unit.

3.Cut the pipes a little longer than measured distance.

4.Cut the cable 1.5 m (5.0 ft) longer than the pipe length.

Burrs removal

1.Completely remove all burrs from the cut cross section of pipe/tube.

2.Put the end of the copper tube/pipe in a downward direction as you remove burrs in order to avoid dropping burrs into the tubing.

Putting flare nuts on

1.Remove flare nuts attached to indoor and outdoor unit, then put them on pipe/tube having completed burr removal.

(not possible to put them on after flaring work)

Copper

 

Slanted

Uneven Rough

pipe

90°

 

 

Pipe

 

 

 

Reamer

Point down

Flare nut

Copper tube

Flaring work

 

 

 

 

 

 

 

1. Carry out flaring work using flaring tool as

 

 

 

 

shown below.

 

 

 

 

"A"

Handle

 

2. Firmly hold copper pipe in a bar in the

Bar

Bar

 

 

 

dimension shown in the table below.

 

 

 

Yoke

 

Outside diameter

A

 

 

 

Cone

 

 

 

 

 

mm

inch

mm

inch

 

Copper pipe

 

Ø6.35

1/4

1.1~1.3

0.4 - 0.5

 

 

 

 

Clamp handle

 

Ø9.52

3/8

1.5~1.7

0.6 - 0.7

 

 

 

 

 

 

 

 

 

Red arrow mark

 

 

 

 

 

 

Installation Manual

11

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Contents Heat CONTROLLER, INC Table of Contents 36K BTU/h Installation Parts Provided18/24K BTU/h For electrical work, contact Safety PrecautionsBe sure not to do Be sure to follow the instruction There is risk of fire or electric shockHumidity is very high and a Do not modify or extend the power cableDo not let the air conditioner Run for a long time whenWater leakage Leakage Install the drain hose to Keep level even whenInstalling the product Away properly Bad connection may causeIndoor unit Installation of Indoor, Outdoor UnitRooftop Installations Select the best locationSelecting the locationOutdoor Unit Seaside Applications and Installation18/24K BTU/h 36K BTU/h Piping length and elevationMulti-Zone Piping Recommendations Drilling the hole in the wall Mounting Installation PlatePutting flare nuts on Flaring workCut the pipes Burrs removalFoamed polyethylene or equivalent is recommended Connecting the PipingCheck IndoorWrap the insulation material around all connections Indoor unit installationFor left rear piping Indoor unit installation Wrap the insulation material around the connecting portionWorst Practice Best PracticeOutside diameter Torque OutdoorRecommendation Connect the cable to the Indoor unitOutdoor unit Connect the cable to the Outdoor unitHigh voltage Strand wire Methods of connecting the cableHow to connect wiring to the terminals For strand wiringModel Pour a glass of water into the evaporator Checking the drainageTo check the drainage Drain pipingInsulating the Pipe and Special Piping Applications Leakage test Air Purging and EvacuationLeak Checking PreparationFinishing the job Repeat evacuation procedure for each indoor unitEvacuation Capacity ChargingMax total Evaluation of the performance Prepare remote controlTest Running 03-18-08 No. MFL39059502
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MMH18DA-1, MMH24DA-1, MMC24DA-1, MMC36TA-1, MMH36TA-1 specifications

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