Bedienungsanleitung REMKO KWG750 (Seite 31 von 60) (Englisch)

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Electrical connection

mented in the switch cabinet of

the unit.

■

The lines to be laid are intro-

duced into the switch cabinet

through the provided cable

bushings of the unit.

■

The dimensioning and selection

of the fuse protection and line

cross-sections to be laid must

be performed by an expert.

Please observe the possible

residual currents with up to 10

times the nominal current.

The following electrical connec-

tions

must be established:

■

Connection of the power sup-

ply

■

Possible connection of an

enabling contact for stopped

operation or standby

■

Possible connection of an

operating mode contact for

cooling or heating mode (only

units with heat pump function)

■

Possible connection of a

collective fault message

notiﬁcation function

■

Possible connection of a cir-

culation pump (only KWG..P,

KWP..P)

■

Possible connection of a crank-

case heater (accessory)

■

Possible connection of a winter

fan control (accessory)

■

Possible connection of a cabled

remote control (accessory)

■

Possible connection of an anti-

frost protection medium heater

(accessory, installation only at

the factory)

Voltage supply

The unit requires a permanently

installed three-phase current con-

nection. The mains supply line

must be connected to the L1, L2,

L3, and PE terminals.

All electrical installations

must be implemented by

specialist companies. The

electrical connections must

be mounted when the system

is de-energised.

ATTENTION

■

The power supply takes place

on the chiller; a control line to

the indoor unit is not required.

■

An all-pole, disconnecting

switch must be installed in

the supply line upstream of

the unit. This switch reacts in

case of a failure of individual

external conductors.

■

The electrical connections

must be designed as ﬁxed

connections according to the

applicable regulations.

■

Check all terminal points for

tightness.

■

The supply line must be suf-

ﬁciently fuse-protected on site

and the voltage loss must not

exceed the permissible values.

■

Make sure that the electrical

system is suitable for providing

the operating current required

to operate the unit and supply

other units that are already in

operation.

■

Before installation, check the

connection to already existing

system parts as to whether

the supply line of the unit is

sufﬁciently dimensioned for the

connected load of the unit.

■

The unit must always be

connected using sufﬁciently

dimensioned - multiple, if

necessary - low-impedance

protective earthing conductors

(especially for plastic pipes).

■

During the installation of the

units onto ﬂat roofs, lightning

protection measures might be

necessary.

■

All electrical connections, such

as the mains supply, cabled

remote control, etc., are imple-

We recommend that you fuse-pro-

tect the unit with safety fuses.

NOTE

All electrical plug and terminal

connections must be checked

for a firm seat and permanent

contact and retightened if

necessary.

ATTENTION

For connection, procedure as fol-

lows:

1. Open the control panel and

cover of the switch cabinet

by removing the fastening

screws and covers.

2. Conduct the de-energised lines

through the openings in the

switch cabinet and engage the

line in the tension relief.

3. Then connect the line according

to the connection diagram.

4. Make sure the rotating ﬁeld is

correct.

5. Mount all dismantled parts.

6 TERMINAL connections

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REMKO KWG750 Seite 31

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