Toshiba MMY-MAP1604HT8-E, MMY-MAP1604HT8ZG-E, MMY-MAP1004HT8ZG-E, MMY-MAP1204HT8-E „ Vacuum drying

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SMMS-i

Installation Manual

NOTE

However, if the environmental temperature changes from the moment of applying pressure to 24 hours after that, the pressure will change by about 0.01MPa (0.1kg/cm²G) per 1°C. Consider the pressure change when checking the test result.

REQUIREMENT

When pressure decrease is detected in steps 1-3, check the leakage at the connecting points.

Check the leakage using a foaming agent or other measures and seal the leak with re-brazing, flare retightening or other methods. After sealing, execute an airtight test again.

SMMS-i

Installation Manual

„Vacuum drying

Be sure to perform vacuuming from both liquid and gas sides.

Be sure to use a vacuum pump equipped with the counter-flow prevention function so that oil in the pump will not flow back into piping for air conditioners. (If oil in the vacuum pump enters in the air conditioner with R410A refrigerant, a problem may be caused in the refrigerating cycle.)

After finishing the airtight test and discharging nitrogen gas, connect the gauge manifold to the service ports of the liquid side, gas side, and balance pipe side and connect a vacuum pump as shown in the figure below. Be sure to perform vacuuming for the liquid, gas, and balance pipe sides.

Connected to indoor unit

Low pressure High pressure

gauge gauge

 

 

 

Main pipe

 

Packed valve fully closed

 

 

 

 

(gas side)

 

 

 

 

 

Header outdoor unit

 

 

 

 

 

Service port

 

Packed valve details

Brazed

To gauge manifold

 

To outdoor unit

 

 

 

 

 

 

Liquid-side service port

To

Gas-side valve

Fully

 

outdoor

closed

 

 

 

Liquid-side valve

unit

 

 

 

 

 

 

 

Balance

To

 

 

 

Service port

service port

outdoor

 

Gas-side

 

Packed valve fully closed

 

unit

 

 

 

 

service port

 

(liquid side)

 

Piping at site

Fully

 

 

 

Balance

 

 

Piping at site

closed

 

valve

 

 

 

 

 

 

Piping at site

 

 

 

Service port

 

 

 

 

 

Packed valve fully closed

 

 

 

 

 

(balance)

V V Gauge

L H manifold

P

Vacuum pump

Follower units

Use a vacuum pump with a high vacuuming degree [-100.7kPa (5Torr, -755mmHg)] and large exhaust gas amount (40L/minute or larger).

Perform vacuuming for 2 or 3 hours, though the time differs depending on the pipe length. Check that all the packed valves at the liquid side, gas side, and balance pipe side are fully closed.

If the pressure does not reach -100.7kPa or less, continue vacuuming for 1 hour or more. If the pressure does not reach -100.7kPa after 3 hours of vacuuming, stop vacuuming and check for air leakage.

If the pressure reaches -100.7kPa or less after vacuuming for 2 hours or more, close the valves VL and VH on the gauge manifold fully and stop the vacuum pump. Leave it as it is for 1 hour to confirm that the vacuuming degree does not change.

If the degree of vacuum loss is large, moisture may remain in the pipes. In that case, inject dry nitrogen gas and apply pressure to 0.05MPa and perform vacuuming again.

After finishing the above procedure of vacuuming, exchange the vacuum pump with a refrigerant canister and advance to the additional charging of refrigerant.

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Contents Not accessible to the general public Non accessibile a clienti genericiFor commercial use Vente interdite au grand publicContents Precautions for Safety Selection of installation locationInstallation „ Warning Indications on the Air Conditioner UnitElectrical wiring SMMS-i Installation Manual RelocationNew Refrigerant Air Conditioner Installation To Disconnect the Appliance from Main Power SupplyAccessory Parts Installation of NEW Refrigerant AIR ConditionerExplanation of symbols „ Required Tools and Cautions on handling„ Installation space Selection of Installation PlaceAvoid the following places Carrying in the Outdoor Unit Combination of outdoor unitsSide Front /BackInstallation of the Outdoor Unit „ Weight centre and weightWeight centre of an outdoor unit Installation in a snowfall areaLiquid piping Gas pipingAt a level position Model typeWhen drawing pipes downward SMMS-iInstallation ManualRefrigerant Piping „ Connection of refrigerant pipeExtruding margin of copper pipe with flare tools a Unit mm Pipe connection method of valve at the gas side Example„ Selection of pipe size Capacity code of indoor and outdoor unitsCoupling size of brazed pipe Selection of pipe materialPipe size for connecting piping between outdoor units Type Gas side Liquid sideCapacity Size of main piping26-EN „ Airtightness test System restrictionPacked valve details Able to detect a serious leakage„ Vacuum drying „ Adding refrigerant Calculation of additional refrigerant charge amountCharging of refrigerant MAP080 MAP100 MAP120 MAP140 MAP160 Type„ Finishing after connecting pipes „ Full opening of the valve„ F-GAS label „ Heat insulation for pipeElectric Wiring „ Power supply specificationsPower wiring selection Pipe holding bracket„ Specifications for communication wiring Design of communication wiringSummary of communication wiring Model Phase and frequency Nominal Voltage„ Connection of power wires and communication wires Group control through a Remote ControllerCommunication wiring between outdoor units L5 Remote controller wiring L6, L7Communication wire connection Power supply wire connectionSMMS-i Installation Manual Screw size and tightening torque „ Automatic address setting Address Setting„ Regulation of high frequency wave Address setting procedure Remains lit on the display, the setting is Set the central control addressBoard of the header outdoor unit indicates 7-segment display indicates„ Manual address setting using the remote controller Wiring example of 2 refrigerant linesOutdoor units setting manually Installation Manual SMMS-i Installation Manual Relay connector connectionAn indoor unit using Remote controller„Confirming the indoor unit Addresses and the positionAddress using a remote Wired remote controller„Changing the indoor unit Controller„Resetting the address Resetting to the factoryDefault address undecided Set the addresses again after finishing the clearanceWhen executing a test run using a Remote controller 10TEST RUN„ Before test run „ Methods of test runPush and hold SW04 for more than 2 seconds Corrective trialInterface PC board 11TROUBLESHOOTING Rotary switch setting valueSegment display and check code SW01 SW02 SW03 Indication12MACHINE Card and Logbook „ Machine card„ Logbook Describe the following items on the machine cardStandards for minimum room volume are as follows EH99871699 Check of Concentration Limit

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

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