Bedienungsanleitung REMKO ML 351 (Seite 20 von 28) (Englisch)

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Fall on condensation pipe

at least

2% fall

The standard condensation hose is

for connection to the left side (as

viewed from the front).

All electrical installation

work should be performed by

specialist contractors. Isolate the

voltage supply when connecting

the electrical terminals.

CAUTION

Tightness check

Once all the connections have

been established, the pressure

gauge station is attached as

follows to the Schrader valve (if

ﬁtted):

red = small valve

= injection pressure

blue = large valve

= suction pressure

Once connected, perform a

tightness test using dried nitrogen.

The tightness test involves

spraying a leak detection spray

onto the connections. If bubbles

are visible, the connections have

not been properly made. Re-

tighten the connection or prepare

a new ﬂange.

If the tightness test is successfully

completed, depressurise the

refrigerant pipes and start a

vacuum pump with an absolute

ﬁnal partial pressure of min. 10

mbar to remove the air in the pipe.

Any humdity present in the pipes is

also removed.

A vacuum of min. 20 mbar

abs. must be created!

CAUTION

The time required to generate

the vacuum is dependent on

the pipework volume of the

indoor unit and the length of the

refrigerant pipes. This always takes

at least 60 minutes.

Once any foreign gases and

humdity have been completely

extracted from the system, the

valves on the pressure gauge

station are closed and the valves

on the outdoor component are

opened as described in the chapter

on "Commissioning".

Condensation connection

If the temperature falls below the

dew point, condensation will form

on either the vaporiser in cooling

mode or the liqueﬁer in heating

mode.

The collection tray below the

vaporiser should be connected to

the drain.

The lower panelling on the

outdoor component acts as a

collection tray. Use the supplied

condensation connection for this

purpose.

■

The condensation pipe should

have a fall of min. 2 % (Fig

10). This is the responsibility

of the customer. If necessary,

ﬁt vapour diffusion tight

insulation.

■

The condensation pipe from

the unit should run freely

into the drainage pipe. If the

condensation runs directly

into a sewer pipe, ﬁt a trap to

prevent any unpleasant odours.

■

When operating the unit at

outdoor temperatures below

0 °C, ensure the condensation

pipe is laid to protect it against

frost. The lower panelling

on the housing should also

be protected against frost to

ensure condensation can drain

off at all times (responsibility of

customer).

If necessary, ﬁt supplementary

pipe heating.

■

Once the pipe has been laid,

check the condensation drains

off and permanently seal it.

Electrical connection

A protected mains supply and

control cable should be connected

to the outdoor component and

indoor unit respectively.

■

We recommend that customers

install a main/repair switch

in the vicinity of the outdoor

component.

■

If an optional condensation

pump is used in conjunction

with the unit, it may be

necessary to install an

additional relay with a higher

contact rating after the switch-

off contact on the pump to

switch off the compressor.

■

Control cables should be

screened if laid in areas exposed

to strong magnetic ﬁelds..

■

Details concerning the electrical

protection of the system are

given in the section on technical

data.

REMKO ML

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REMKO ML 351 Seite 20

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