Mitsubishi Electronics PUHY-HP-THMU-A installation manual Additional refrigerant charge

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<C>Slope of twinning pipes

Make sure the slope of the twinning pipes are at an angle within ±15˚ to the ground.

If the slope exceeds the specified angle, the unit may be damaged.

F

±15°

G

<D>Pipe connection example

GB

H

I

H

J

A

Downward slope

B

Upward slope

C 1st branch

D Trap (gas pipe only)

E

Within 2 m [6 ft]

F

Twinning pipe

G Slope of the twinning pipes are at an angle within ±15˚ to the ground

H

Pipes on site

I

Twinning Kit

J

Straight run of pipe that is 500 mm [19-11/16 in] or more

 

 

 

10. Additional refrigerant charge

At the time of shipping, the outdoor unit is charged with refrigerant.

This charge does not include the amount needed for extended piping and additional charging of each refrigerant line will be required on site. In order that future servicing may be properly provided, always keep a record of the size and length of each refrigerant line and the amount of additional charge by writing it in the space provided on the outdoor unit.

10.1.Calculation of additional refrigerant charge

Calculate the amount of additional charge based on the length of the piping extension and the size of the refrigerant line.

Use the table below as a guide for calculating the amount of additional charg- ing and then charge the system accordingly.

If the calculation results in a fraction of less than 0.1 kg [4 oz], round up to the next 0.1 kg [4 oz]. For example, if the result of the calculation was 11.38 kg [402 oz], round the result up to 11.4 kg [404 oz].

<Additional Charge>

<Example>

 

 

 

 

Indoor

 

 

 

 

1: 48 A: ø12.7 mm [1/2"]

40 m [131 ft]

a: ø9.52 mm [3/8"]

10 m [32 ft]

 

2: 36

B: ø9.52 mm [3/8"]

10 m [32 ft]

b: ø9.52 mm [3/8"]

5 m [16 ft]

At the

3: 15

C: ø9.52 mm [3/8"]

15 m [49 ft]

c: ø6.35 mm [1/4"]

10 m [32 ft]

conditions

4: 12

D: ø9.52 mm [3/8"]

10 m [32 ft]

d: ø6.35 mm [1/4"]

10 m [32 ft]

below:

5: 24

 

 

e: ø9.52 mm [3/8"]

10 m [32 ft]

 

The total length of each liquid line is as follows: ø12.7 mm [1/2"]: A = 40 m [131 ft] = 40 m [131 ft] ø9.52 mm [3/8"]: B + C + D + a + b + e

=10 m [32 ft] + 15 m [49 ft] + 10 m [32 ft] + 10 m [32 ft] + 5 m [16 ft] + 10 m [32 ft] = 60 m [193 ft]

ø6.35 mm [1/4"]: c + d = 10 m [32 ft] + 10 m [32 ft] = 20 m [64 ft] Therefore,

<Calculation example> Additional refrigerant charge

=40 m [131 ft] 0.12 kg/m [1.29 oz/ft] + 60 m [193 ft] 0.06 kg/m [0.65 oz/ft] + 20 m [64 ft] 0.024 kg/m [0.26 oz/ft] + 3.5 kg [124 oz] = 12.4 kg [435 oz]

Value of α

Additional refrigerant charge

(kg) [oz]

=

+

Liquid pipe size Total length of ø19.05 mm [3/4"]

(m)0.29 (kg/m) (ft) 3.1 (oz/ft)

Liquid pipe size Total length of ø9.52 mm [3/8"]

(m)0.06 (kg/m) (ft) 0.65 (oz/ft)

+

+

Liquid pipe size Total length of ø15.88 mm [5/8"]

(m)0.2 (kg/m) (ft) 2.15 (oz/ft)

Liquid pipe size Total length of ø6.35 mm [1/4"]

(m)0.024 (kg/m) (ft) 0.26 (oz/ft)

Liquid pipe size Total length of

+ø12.7 mm [1/2"]

(m)0.12 (kg/m) (ft) 1.29 (oz/ft)

+α

Total capacity of connecting indoor units

α

Models

 

~

27

2.0 kg [71 oz]

Models

28

~

54

2.5 kg [89 oz]

Models

55

~

126

3.0 kg [106 oz]

Models

127

~

144

3.5 kg [124 oz]

Models

145

~

180

4.5 kg [160 oz]

Models

181

~

234

5.0 kg [177 oz]

Models

235

~

 

6.0 kg [212 oz]

9

Image 9
Contents Outdoor Unit Safety precautions ContentsBefore installation relocation electri- cal work Before installationAbout the product Before starting the test runSpace required for unit installation and operation SpecificationsCombination of outdoor unit Parts included listTransporting the unit Be very careful when carrying/moving the productRefrigerant piping installation Installation of unitInstallation Outlet Inlet Inlet InletRefrigerant piping system Outdoor model P144 ~ P192 Precautions for outdoor unit combinationsCalculation of additional refrigerant charge Additional refrigerant chargeCap N·m /kg·cm Shaft N·m /kg·cm Size of hexagonal Appropriate tightening torqueWrench mm Ø9.52 3/8 22/220 Ø12.7 1/2 20/200Airtight test Airtight test, evacuation, and refrigerant chargingOnly use refrigerant R410A EvacuationThermal insulation of refrigerant piping Temperature ResistanceOutdoor Water-proof hemp cloth + Zinc plate + Oily paint Refrigerant ChargingWiring transmission cables Examples of transmission cable wiring Wiring examplesGround Unnecessary address setting Necessary main/sub settingSequence with the IC Main Automatically identified. *1Wiring of main power supply and equipment capacity Schematic Drawing of Wiring ExampleThickness of wire for main power supply, on/off capacities Rating plate information Test run/Typical unit operationAvant installation et travaux électriques ContenuPrécautions de sécurité Avant linstallation déménagement travaux électriques Avant linstallationPropos du produit Avant de commencer lessaiCombinaison dunités extérieures Espace requis pour installer et utiliser lunitéSpécifications Liste des pièces inclusesEn cas dinstallation collective Fig Transport de lunitéFaites très attention en portant/déménageant le produit Installation de la tuyauterie du frigorigène Installation de lunitéInstallation Mise en gardeSystème de tuyauterie du frigorigène Nutilisez jamais la tuyauterie du frigorigène existanteModèle extérieur P72 P96 Précautions pour les combinaisons dunités extérieures Modèle extérieur P144 P192Calcul de la charge supplémentaire de frigorigène Charge supplémentaire de frigorigèneCouple de serrage approprié Test dherméticité, évacuation et chargement de frigorigène Test dherméticitéUtilisez uniquement le frigorigène R410A Isolation thermique de la tuyauterie Du frigorigèneChargement du frigorigène Raccordement des câbles de transmission Exemples de câblage 1 Télécommande M-NETÉlévateur du niveau des signaux de transmission Schéma du câblage exemple Fig ~208-230V L1, L2, L3 Terre ~208-230V L, NEssai de fonctionnement/Fonctionnement type dune unité Informations de la plaque signalétiquePage Page WT05234X02