Bedienungsanleitung REMKO SKM260 (Seite 8 von 28) (Englisch)

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n Sufficient ventilation

Before starting work, ensure that the working

area is outdoors or has suf

ficient ventilation. A

continuous ventilation stream is required while

working. The safety of the persons working

must be guaranteed by the exhaust air equip-

ment: potentially leaking refrigerant must be

lead away safely and drained into the atmos-

phere in an optimum manner.

n Checking the refrigerant circuit

If electronic components need to be replaced,

ensure that the spare parts have the same

function and identical technical specifications.

The maintenance and replacement regulations

of the manufacturer must always be observed

and complied with. Please contact the support

of the manufacturer with any problems or

queries. The following safety checks must be

carried out when using combustible refriger-

ants:

- The fill level adjusts to the size of the rooms

in which the unit is located.

- The exhaust air equipment and its outlets

function properly and are not blocked or

obstructed.

n Checking the electronic components

A component and safety check must be carried

out before repairing and maintaining electronic

components. If safety cannot be ensured due

to a defect on a component, installation must

not take place until safety can be guaranteed

again. If the defect on the spare part cannot be

remedied and downtime of the unit is no longer

acceptable, an adequate temporary solution

must be arranged. The owner/operator of the

unit must be informed about this. The detailed

safety check must include the following

aspects:

- Capacitors are discharged. Discharging must

be done in a safe process to prevent flying

sparks.

- There must be no electronic components

active or uninsulated wires while filling,

repairing or cleaning.

- There must be no earthing of the system.

n Repairs to closed components

Before repairing closed components/housing

parts, the unit must be free from voltage. If car-

rying out the repairs free from voltage cannot

be avoided, the critical points of potential refrig-

erant leakages must be checked using a leak

detector.

The following notes must be observed when

working on electronic components if the

housing is changed in such a way that its

safety is influenced. This also relates to cases

where the lines are damaged, there is exces-

sive or incorrect pin assignment, connections

are not assigned in the original way or similar

deviations to the expected condition are deter-

mined.

n Repairing of intrinsically safe components

Do not introduce permanent inductive or

capacitive loads into the existing circuits

without ensuring that the maximum permitted

voltages and amperages of the assemblies and

lines are not exceeded. Intrinsically safe com-

ponents are individual components that can be

operated in the presence of flammable sub-

stances. The test equipment must be adjusted

according to the situation-dependent condi-

tions. Only use components which are of

ficially

approved by the manufacturer as spare parts.

Unapproved components can cause a fire in

the event of a leakage in the refrigerant circuit.

n Wiring

Lines must be checked for the following

damage:

- Damage to the insulation

- Corrosion at the contact points

- Excessive pressure on the lines

- Damage due to vibrations

- Damage due to sharp edges

- Damage due to other influences not men-

tioned here

Also consider the ageing of the material and

continuous vibration loads due to compressors

or fans when checking.

n Identify combustible refrigerant

Do not use any potential ignition source when

searching for refrigerant leaks under any cir-

cumstance. The use of a leak detection lamp

or other similar devices with a naked flame is

not permitted.

1. Ensure that the components are installed

correctly

2. Ensure that sealing materials are not

changed in such a way that combustible gases

or objects could penetrate into the interior of

the components.

3. Spare parts must correspond to the manu-

facturer’s specifications.

NOTICE!

The use of silicones can influence the ef

fective-

ness of leak detection devices! Intrinsically safe

components must not be insulated before

starting work.

REMKO SKM ECO series

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