Toshiba MMY-MAP1604HT8ZG-E „ Airtightness test, System restriction, Packed valve details

Page 15

SMMS-iInstallation Manual

◆System restriction

Outdoor unit combination

 

Up to 4 units

 

 

 

Total capacity of outdoor units

 

Up to 48 HP

 

 

 

Indoor unit connection

 

Up to 48 units

 

 

 

Total capacity of indoor units

H2 ≤ 15m

135% of outdoor units’ capacity

(varies depending on the height difference between

 

 

15m < H2

105% of outdoor units’ capacity

indoor units.)

◆Cautions for installation

•Set the outdoor unit first connected to the bridging pipe to the indoor units as the header unit.

•Install the outdoor units in order of their capacity codes: A (header unit) ≥ B ≥ C ≥ D

•When connecting gas pipes to indoor units, use Y-shaped branching joints to keep pipes level.

•When piping to outdoor units using Outdoor unit connection piping kits, intersect the pipes to the outdoor unit and those to indoor units at a right angle as shown in figure 1 on “6. INSTALLATION OF THE OUTDOOR UNIT”. Do not connect them as in figure 2 on “6. INSTALLATION OF THE OUTDOOR UNIT”.

◆Allowable length and allowable height difference of refrigerant piping

SMMS-i

Installation Manual

„Airtightness test

After the refrigerant piping has been finished, execute an airtight test.

For an airtight test, connect a nitrogen gas canister as shown in the figure on the next page and apply pressure.

•Be sure to apply pressure from the service ports of the packed valves (or ball valves) at the liquid side, gas side and balance pipe side.

•An airtight test can only be performed at the service ports at the liquid side, gas side and balance pipe side on header unit.

•Close the valves fully at the gas side, liquid side and balance pipe side. As there is a possibility that the nitrogen gas will enter into the cycle of outdoor units, re-tighten the valve rods at the liquid side and balance pipe side before applying pressure.

(When using MAP140 or MAP160, you do not have to re-tighten the liquid side valve rod as their valves at the liquid side are ball valves.)

•For each refrigerant line, apply pressure gradually in steps at the liquid side, gas side and balance pipe side.

Be sure to apply pressure at the gas side, liquid side, and balance pipe side.

WARNING

Never use oxygen, flammable gases, or noxious gases in an airtight test.

 

Item

 

Allowable

Pipes

 

 

value

 

 

 

 

 

 

Total extension of

 

Less than 34HP or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Connected to indoor unit

Low pressure High pressure

gauge gauge

 

pipe (liquid pipe,

Less than 96kW

less

300m

LA + LB + La + Lb + Lc + Ld + L1 + L2 + L3 + L4

 

 

 

 

+ L5 + L6 + L7 + a + b + c + d + e + f + g + h + i + j

 

real length)

96kW or more

34HP or more

500m

 

 

 

 

 

 

Farthest piping length L (*1)

Equivalent length

235m

LA + LB + Ld + L1 + L3 + L4 + L5 + L6 + j

 

Real length

190m

 

 

 

 

 

Main piping length

 

Equivalent length

120m (*2)

L1

 

 

Real length

100m (*2)

Pipe length

 

 

 

Farthest equivalent piping length from the first branch Li

90m (*3)

L3 + L4 + L5 + L6 + j

 

 

(*1)

 

 

 

 

 

 

 

 

Farthest equivalent piping length between outdoor units L0

25m

LA + LB + Ld (LA + Lb, LA + LB + Lc)

 

(*1)

 

 

 

 

 

 

 

 

Maximum equivalent piping length of pipes connected to

10m

La, Lb, Lc, Ld

 

outdoor units

 

 

 

 

 

 

 

 

Maximum real length of pipes connected to indoor units

30m

a, b, c, d, e, f, g, h, i, j

 

Maximum equivalent length between branching sections

50m

L2, L3, L4, L5, L6, L7

 

 

 

Upper outdoor

70m (*4)

–

 

Height between outdoor and indoor

units

 

 

 

Height

units H1

 

Lower outdoor

40m (*5)

–

 

 

units

difference

 

 

 

 

 

 

 

 

 

 

Height between indoor units H2

 

40m

–

 

Height between indoor units H3

 

5m

–

 

 

 

Main piping

Gas side valve fully closed

 

 

 

 

 

 

 

 

Header outdoor unit

 

 

 

 

Service port

 

Packed valve details

Brazed

 

 

To gauge manifold

To outdoor unit

Copper pipe

Liquid-side service port

 

Gas-side valve

Fully

Liquid-side valve

 

closed

 

 

 

Balance

To

 

 

Service port

outdoor

To

 

service port

 

unit

Gas-side

 

 

outdoor

Liquid valve fully closed

 

 

unit

service port

 

 

Fully

Balance valve

Piping at site

 

Piping at site

closed

 

 

 

 

Piping at site

Service port

Balanced pipe side valve fully closed

V V Gauge

L H manifold

Reducing valve

Copper pipe

Nitrogen gas

*1: Farthest outdoor unit from the first branch: (D), farthest indoor unit: (j)

*2: If the total capacity of outdoor units is 46HP or more, make the equivalent length 70m (real length 50m) or less.

*3: Make the difference 65m or less if the height difference between outdoor and indoor units (H1) is more than 3m.

*4: Make the difference 50m or less if the height difference between indoor units (H2) is more than 3m.

*5: Make the difference 30m or less if the height difference between indoor units (H2) is more than 3m.

Connected to other follower units

Able to detect a serious leakage

1.Apply pressure 0.3MPa (3.0kg/cm²G) for 5 minutes or more.

2.Apply pressure 1.5MPa (15kg/cm²G) for 5 minutes or more.

Available to detect slow leakage

3. Apply pressure 3.73MPa (38kg/cm²G) for approx. 24 hours.

• If there is no pressure decrease after 24 hours, the test is passed.

EN

27-EN

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28-EN

 

 

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Contents Vente interdite au grand public Not accessible to the general publicNon accessibile a clienti generici For commercial useContents „ Warning Indications on the Air Conditioner Unit Precautions for SafetySelection of installation location InstallationTo Disconnect the Appliance from Main Power Supply Electrical wiringSMMS-i Installation Manual Relocation New Refrigerant Air Conditioner Installation„ Required Tools and Cautions on handling Accessory PartsInstallation of NEW Refrigerant AIR Conditioner Explanation of symbolsSelection of Installation Place „ Installation spaceAvoid the following places Front /Back Carrying in the Outdoor UnitCombination of outdoor units SideInstallation in a snowfall area Installation of the Outdoor Unit„ Weight centre and weight Weight centre of an outdoor unitModel type Liquid pipingGas piping At a level position„ Connection of refrigerant pipe When drawing pipes downwardSMMS-iInstallation Manual Refrigerant PipingPipe connection method of valve at the gas side Example Extruding margin of copper pipe with flare tools a Unit mmSelection of pipe material „ Selection of pipe sizeCapacity code of indoor and outdoor units Coupling size of brazed pipeSize of main piping Pipe size for connecting piping between outdoor unitsType Gas side Liquid side Capacity26-EN Able to detect a serious leakage „ Airtightness testSystem restriction Packed valve details„ Vacuum drying MAP080 MAP100 MAP120 MAP140 MAP160 Type „ Adding refrigerantCalculation of additional refrigerant charge amount Charging of refrigerant„ Heat insulation for pipe „ Finishing after connecting pipes„ Full opening of the valve „ F-GAS labelPipe holding bracket Electric Wiring„ Power supply specifications Power wiring selectionModel Phase and frequency Nominal Voltage „ Specifications for communication wiringDesign of communication wiring Summary of communication wiringRemote controller wiring L6, L7 „ Connection of power wires and communication wiresGroup control through a Remote Controller Communication wiring between outdoor units L5Power supply wire connection Communication wire connectionSMMS-i Installation Manual Screw size and tightening torque Address Setting „ Automatic address setting„ Regulation of high frequency wave Address setting procedure 7-segment display indicates Remains lit on the display, the setting isSet the central control address Board of the header outdoor unit indicatesSMMS-i Installation Manual Relay connector connection „ Manual address setting using the remote controllerWiring example of 2 refrigerant lines Outdoor units setting manually Installation ManualAddresses and the position An indoor unit usingRemote controller „Confirming the indoor unitController Address using a remoteWired remote controller „Changing the indoor unitSet the addresses again after finishing the clearance „Resetting the addressResetting to the factory Default address undecided„ Methods of test run When executing a test run using a Remote controller10TEST RUN „ Before test runCorrective trial Push and hold SW04 for more than 2 secondsInterface PC board SW01 SW02 SW03 Indication 11TROUBLESHOOTINGRotary switch setting value Segment display and check codeDescribe the following items on the machine card 12MACHINE Card and Logbook„ Machine card „ LogbookEH99871699 Check of Concentration Limit Standards for minimum room volume are as follows

MMY-MAP0804HT8-E, MMY-MAP1604HT8Z-E, MMY-MAP1404HT8-E, MMY-MAP0804HT8Z-E, MMY-MAP1204HT8Z-E specifications

The Toshiba MMY-MAP0804HT8Z-E, MMY-MAP1404HT8-E, MMY-MAP1604HT8Z-E, MMY-MAP0804HT8-E, and MMY-MAP1604HT8-E are part of Toshiba's advanced air conditioning line-up, designed for both residential and commercial applications. These models are engineered to offer high efficiency, comfort, and reliability, making them an excellent choice for modern HVAC solutions.

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