Nibe ACVM 270, Installation And Maintenance Instructions Manual

Page: 31 / 96

Electrical installation
General
ACVM 270 must be installed via a circuit breaker with a
minimum breaking gap of 3mm.
Other electrical equipment, except the outdoor sensors,
current sensors and outdoor module AMS 10 is already
connected at the factory.
■
Disconnect the indoor module ACVM 270 and outdoor
module AMS 10 before insulation testing the house
wiring.
■
For fuse ratings, see technical data, “Fuse protection”.
■
If the building is equipped with an earth-fault breaker,
ACVM 270 should be equipped with a separate one.
■
Connection must not be carried out without the permis-
sion of the electricity supplier and under the supervision
of a qualified electrician.
■
5x2.5 mm 2 cable must be used for the connection
between ACVM 270 and AMS 10.
■
Cables must be routed so that they are not damaged by
metal edges or trapped by panels.
■
AMS 10 is equipped with a single phase compressor.
This means that phase L3 is loaded with up to 15 A dur-
ing compressor operation.
NOTE
Electrical installation and service must be carried out
under the supervision of a qualified electrician. Elec-
trical installation and wiring must be carried out in
accordance with the stipulations in force.
NOTE
The switch (SF1) must not be moved to “1” or “ ”
until the boiler has been filled with water. The circu-
lation pump and immersion heater may be damaged.
Principle diagram, electrical installation
L PEN
1
L
2
L
3
Electrical distribution
unit
Isolator switch
Current sensor*
Incoming supply
Power and
communication cable
* Only in a 3-phase installation.
Electrical components
L
E
K
1 mm
5,5 mm
L
E
K
1 mm
5,5 mm
UB1
X1
SF1
FA2
FA1
BT30
FD1
X1
X2
UB2
X3
UB4
Explanation
Scale length of
conductor (mm)
Type Designa-
tion
- Cable gland UB1,2,4
18 Terminal block, incoming
mains supply X1
9 Terminal block, outgoing
supply and communication X2
9 Terminal block, external addi-
tion X3
- Switch SF1
- Miniature circuit breaker,
control system FA1
- Miniature circuit breaker,
outdoor unit FA2
- Thermostat, standby mode BT30
- Temperature limiter FD1
31 NIBE™ SPLIT ACVM 270
For the Installer
Electrical installation