Mitsubishi Electronics PFD-P250500VM-A operation manual Checking Drainage, Checking V Belts

Page 10

GB

10. Checking Drainage

Check that water is able to drain smoothly. If water is unable to drain smoothly, check for blockage of the grooves in the drain pan and the piping trap by paper particles etc. Carefully clean the grooves in the drain pan and the piping trap to prevent further blockage.

Ensure that the trap is always water-sealed.

11. Checking V Belts

1.Adjust parallel of the fan and motor pulleys in accordance with Fig.B-1.

2.Adjust the tension of each V belt so that the deflection load (W) at the optimum deflection (r= 5 mm) is as shown in Fig.B-2.

3.It is recommended that the belt be adjusted to the optimum tension as shown in Fig.B-2after it has been run-in on the pulley (24 - 28 hours operation). When a new belt is fitted, adjust the deflection load (W) to approximately 1.3 times the maximum value.

4.It is recommended that the V belt be replaced every 8000 hours. It has reached the end of its life when it has stretched by approximately 2% (including an initial stretch of approximately 1%) of the initial circumference.

[Fig. B-1] (P.4)

Parallel

K (minutes)

Remarks

Pulley

 

 

Cast iron pulley 10 or less

Equivalent to 3 mm displacement per meter.

[Fig. B-2] (P.4)

ADeflection load (W) 3 - 4kg

12.Cleaning the Indoor Unit Heat Exchanger

When dust adheres to the heat exchanger after the unit has been used for a long time, reducing the efficiency of heat exchange, and resulting in deterioration of cooling performance.

Please ask your dealer how to clean it.

13. Greasing the Fan Bearings

Replenish bearing grease annually to ensure that the bearings may be used with

Shell

Albania Grease 2

confidence a long time. Such replenishment extends the life of both the grease and

Quantity

10.5 g

the bearings. Use the following grease.

 

 

14. When the Unit is to be out of Use for a Long Time

<When the Unit is to be out of Use for a Long Time>

(1)Run the unit in Fan mode for a period of 4 - 5 hours to dry the indoor unit.

(2)Turn the indoor unit power OFF.

<Preparations for Reuse>

sCheck the following (1) - (4), then turn the power supply on.

(1)Clean and fit the filter.

(2)Check that the inlets and outlets on the indoor and outdoor units are not blocked.

(3)Check that the earth wire is connected. The earth wire may be connected with the indoor unit as well in some cases.

Caution:

Do not connect the earth wire to gas pipes, water pipes, lightning rods, or telephone earth wires. If earthing work is not conducted carefully it may result in electric shock, smoke, flame, or mis-operation due to electrical noise. Please ask your dealer before beginning earthing work.

(4)Check to ensure that the drain hose is not bent, the tip is not raised or blocked, and that the trap has not been damaged, and fill the trap with water.

(5)Turn the power supply on before 12 hours or more.

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Contents PFD-P250 500VM-A 6 8 7 PFD-P250VM-APFD-P500VM-A Fig. a Contents Safety precautionsDisposing of the unit How to operateNames and functions of various parts ON/OFFTimer setting Room temperature adjustmentTime setting Selecting operationSmart way to use Control of Indoor Unit Inlet or Outlet TemperatureFailure Display Lamps Caring for the unitTroubleshooting Installation, transferring works, and checkingChecking Drainage Cleaning the Indoor Unit Heat ExchangerWhen the Unit is to be out of Use for a Long Time Checking V BeltsPeriodic Checks Maintenance and ChecksRelocating or scrapping the unit Maintenance and Check Frequencies SpecificationsWarranty and Servicing PFD-P·VM-A seriesWT04232X01

PFD-P250500VM-A specifications

The Mitsubishi Electronics PFD-P250500VM-A is a cutting-edge piece of equipment that exemplifies the company's commitment to advanced engineering and innovative technology in the field of power and automation solutions. Designed for robust performance, this model serves as a high-efficiency inverter that integrates seamlessly into various industrial applications.

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