Electrical Connection - REMKO KWL 130 Operation Manual

REMKO KWL (H)

Electrical connection

CAUTION
!
All electrical installation work
is to be performed by specialty
companies. Disconnect the
voltage supply when connect-
ing the electrical terminals.
■ The power supply is made at
the chiller; a control cable to
the interior unit is not neces-
sary.
■ An all pole separating switch,
which activates individual phase
conductors in the event of
a malfunction, must be installed
in the supply line upstream
from the unit.
Electric connections must be
■
carried out as fixed connections
in accordance with the applica-
ble regulations.
Check all terminal points for
■
stability.
The supply line must be ad-
■
equately insulated on-site
and the voltage drop may not
exceed permissible values.
Make sure that the electri-
■
cal system is adequate for the
operation of the unit and and
can supply the operating cur-
rent necessary for other already
operated units.
Determine before installation,
■
when connecting to existing
system components, whether
the unit's service connection is
adequately sized for the unit's
rated input.
The connection of the units
■
must always be carried out with
adequately sized, low-resistance
protective earthing conductors
and if necessary more than
once (especially with plastic
tubing).
When installing the units on
■
flat roofs, lightning protection
measures may be necessary.
26
All electrical connections such
■
as network supply, cable remote
control etc. must be carried out
in the unit's switch cabinet.
The lines to be installed are to
■
be pulled into the switch cabi-
net through the cable conduits.
An electrician must determine
■
the sizing and selection of the
fuses and the cross section of
the the lines to be installed.
Note that starting current may
be up to 10 times nominal cur-
rent.
The following electrical connec-
tions must be provided:
Connection to the power supply.
■
Possible enabling contact for
■
the set mode or stand-by.
Possible operating mode
■
contact for cooling or heating
mode (units with HP-function)
Possible connection of a winter
■
pressure controller (accessory)
Possible connection of crank
■
case heating (accessory).
Possible connection of a cable
■
remote control
(accessories).
Possible connection of anti-
■
freeze protection heating me-
dium (accessory, factory instal-
lation only).
CAUTION
!
Check all plugged and
clamped terminals to verify
they are seated correctly and
make a permanent contact.
Tighten as required.
Power supply
The unit requires a fixed three
phase alternating current connec-
tion. The mains connection is to be
connected to the L1, L2, L3, N and
PE terminals.
NOTE
We recommend the use of safety
fuses.
Please proceed as follows to con-
nect:
1. Open the control panel and
switch cabinet cover by
removing the screws and
lifting off the cover.
2. Feed the voltage-free cable
through the conduits into the
switch cabinet and clamp the
cable to the strain relief.
3. Then connect the cable in ac-
cordance with the connection
diagram.
4. Ensure a correct rotating field.
5. Reinstall all parts which were
removed.
7 Terminal connections
External enabling contact
Operating mode / Stand-By
In addition to being operated with
the controller or the cable remote
control, the unit can be switched
on (normal mode) and switched
off (Stand-By) over an external po-
tential free contact (programmable
as opener or closer) (Figure 7).
The controller must be configured
if a closer is used for the external
enabling.