Trane LIFT 81-P - Electrical Connections; Machine Connection; Connections of the Accessories

19
5 | Electrical
5.1 Machine connection
To set up the electrical connections:
Unscrew the fixing screws.
Remove the external panels.
Set the main switch to 0.
Turn the two fixing screws 1/4 of a turn and open the board doors.
Use the hole for the main power cable and the hole for the cables of
other external connections.
Make the connections as shown in the wiring diagram.
Once the electrical connections are completed, secure the cables by
using the cable glands, close the doors of the electrical panel and
reassemble the external panels by screwing the fixing screws.
Before connecting the remote ON-OFF switch, remove the
jumper from the relative clamps.
5.2 Connections of the accessories
5.2.1 Circulating pump
The circulating pump must always be connected to the control unit
as indicated in the wiring diagram. The pump must be started before
the unit starts and stopped after it has stopped (minimum
recommended delay: 60 seconds).
5.2.2 External consents
The unit is provided with holes for the power cables inlet. There is a
pre-cut hole on the structure and a hole on the base for any input
from below.
Remove the pre-cut.
Insert the cables from the outside, guiding them towards the
electrical board.
If you wish to enable or disable the unit remotely, connect the
external consent to the contacts listed in the wiring diagram.
Avoid placing the control cables in the same duct as the power
cables. Always use a suitable shielded cable.
The connection cables must have a minimum cross section of 1.5
mm².
Avoid direct contact with non-insulated copper pipes and with
the compressor.
It is forbidden to enter the device with electrical cables in
positions not specifically required in this booklet.
5.2.3 Connections of the accessories
5.2.3.1 Circulating pump
The circulating pump must always be connected to the control unit
as indicated in the wiring diagram. The pump must be started before
the unit starts and stopped after it has stopped (minimum
recommended delay: 60 seconds).
5. ELECTRICAL CONNECTIONS
A Pre-cut-out for side entry
A Pre-cut-out for side entry
A Cable gland for power cable input
B
Power terminal blocks
C
Cable gland for control cables input
D
Control terminal block