General
■
The heat pump must not be connected without the
permission of the electricity supplier and must be
connected under the supervision of a qualified electri-
cian.
■
If JÄSPI Inverter Nordic is fused with a miniature circuit
breaker, it must have at least motor characteristic ”C”.
For MCB size see "Technical Specifications".
■
JÄSPI Inverter Nordic does not include an omnipolar
circuit breaker on the incoming power supply. The
heat pump’s supply cable must be connected to a cir-
cuit breaker with at least a 3 mm breaking gap. When
the building is equipped with an earth-fault breaker,
the heat pump should be equipped with a separate
one. The earth-fault breaker should have a nominal
tripping current of no more than 30 mA. Incoming
supply must be 400V 3N~ 50Hz via electrical distribu-
tion units with fuses.
For 230V~ 50Hz, the incoming supply must be 230V~
50Hz via distribution box with fuses.
■
If an insulation test is to be carried out in the building,
disconnect the heat pump.
■
If the control is to be supplied separately from other
components in the heat pump (e.g. for tariff connec-
tion), a separate operating cable must be connected
to terminal block (X5).
■
The routing of cables for heavy current and signals
should be made out through the cable glands on the
heat pump's right-hand side, seen from the front.
■
The communication cable must be a three core,
screened cable and be connected between JÄSPI In-
verter Nordic terminal block X22 and the indoor
module/control module.
■
Connect the charge pump to the indoor module/con-
trol module. See where the charge pump must be
connected in the installation manual for your indoor
module/control module.
NOTE
Electrical installation and any servicing must
be carried out under the supervision of a qual-
ified electrician. Disconnect the current with
the circuit breaker before carrying out any ser-
vicing. Electrical installation and wiring must
be carried out in accordance with the national
stipulations in force.
NOTE
Check the connections, main voltage and phase
voltage before starting the machine to prevent
damage to the air/water heat pump’s electron-
ics.
NOTE
The live external control must be taken into
consideration when connecting.
NOTE
If the supply cable is damaged, only Kaukora,
its service representative or similar authorised
person may replace it to prevent any danger
and damage.
JÄSPI Inverter Nordic
Chapter 5 |
Electrical connections
22
5 Electrical connections