Remko RKS 435 H Manual do Utilizador descarregar pdf (Página 11)

10.

Check that the border has the

correct shape (Figure 3).

11.

First connect the refrigerant

pipes to the blocking valves by

hand to ensure a correct ﬁt.

12.

Then permanently secure the

screw attachments using 2

spanners of appropriate size.

While tightening, always hold

with a spanner (Figure 4).

13.

Fit the two installed refrigerant

pipes, including the connectors,

with appropriate heat insula-

tion.

14.

Only use insulation hoses that

are suitable for use and suf-

ﬁciently resistant to diffusion in

the relevant temperature range.

Additional installation in-

structions



When the outdoor unit is used

in combination with certain in-

door units, the refrigerant pipes

may need to be connected in

a different way. If so, ﬁt the If so, ﬁt theIf so, ﬁt the

reducing or expanding screw

attachments supplied to the

indoor unit.



If the basic length of the con-

nection line is greater than 5m,

refrigerant must be added to

the system during initial opera-

tion.

See “Adding refrigerant” sec-

tion

Leak test

Once all connections have been

made, the manometer station is

attached to the corresponding

Schrader valve connections, if ﬁt-

ted:

red = small valve = small valve= small valve

= injection pressure= injection pressure

blue = large valve = large valve= large valve

= suction pressure= suction pressure

After connection, the leak test is

performed with dry nitrogen.

The leak test involves spraying

the connections ﬁtted with leak

detection spray. If bubbles can be If bubbles can beIf bubbles can be

seen, the connection is not ﬁtted

correctly.

In this case, tighten the screw at-

tachment or create a new border.

After a successful leak test, the

excess pressure is removed from

the refrigerant pipes and a vacuum

pump with an absolute ﬁnal partial

pressure of at least 0.01 mbar is

started up to create a vacuum in

the pipes. This also removes any This also removes anyThis also removes any

residual moisture from the pipes.

A vacuum of at least

0.05 mbar abs. must be

created!

CAUTION�CAUTION�

The time taken to create the

vacuum depends on the pipe

volume in the indoor unit and the

length of the refrigerant pipes, but

the process deﬁnitely takes at least

60 minutes.

Once foreign gases and moisture

have been completely removed

from the system, the valves on the

manometer station are closed and

the valves on the outdoor unit are

opened as described in the “Initial

operation” section.

Only tools that are approved

for use on refrigeration equip-

ment may be used.

Pipe cutters, deburrers and

bordering tools.

NOTE

3 Correct border shape

Tightening with 1

spanner

Holding with

2nd spanner

Tightening screw attachments

Tightening

torque:

“

12-16 Nm

“

28-32 Nm

“

40-44 Nm

“

64-68 Nm

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 19 20

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Remko RKS 435 H Manual do Utilizador Página 11

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