RDZ PDC FLOOR 12T, Installation Manual

Page: 28 / 64

EN
28
2 .13 .2 Electrical power line connection
The electrical panel is located on the front of the machine.
To access the electrical panel:
Remove the central panel as shown in 2.4.1Minimum dis-
tances and access to the internal parts p<?>
Insert the wire in sheath 1 to lead it out directly into the panel
2.
The connection wire must be dimensioned as shown in table p.
15
4 mm² and greater is recommended in all cases. The wire must
be of the double insulation muliticore type mod. H05VVF for in-
door applications and mod. H07RNF per output applications in
cable duct.
1. Electric connection input
2. Electric panel connection input
Q1
Master switch
K1 Auxiliary heater enable relay
K2 External unit enable relay
K3 Ambient thermostat contact relay
TR Transformer 230/24/13V for external unit board
INN-PDC-02 Controller with user interface
SW Web server board with rabbit
CR-UXRP71B External unit control board
A Terminal strip
1
2
TR
Q1
SW
CR-UXRP71B
K2 K1
A
K3
2 .13 .3 Outdoor condenser electric connection
The outdoor unit must be connected to power (single-phase or
three-phase) to the specific terminals subjected to the action of
the master switch Q1, arranged on the left of the indoor unit us-
ing appropriately dimensioned wires to prevent voltage drops
or overheating.
2 .13 .4 Connections to the terminal strip
Read carefully the instructions in this paragraph before con-
necting the terminal strip. Remove the two jumpers fitted at
the factory to connect to terminals 5-6 and 7-8. To position
the external sensor T4, disconnect it from the terminals 13-
14, extend it, if needed, and reconnect it.
Terminals 1-2: serial connection of external unit terminals U1
and U2 (by the installer). The connection is polar-
ised. Use a shielded double-core wire with mini-
mum cross-section of 0.35 mm² for the connec-
tion.
If a voltage of 230V is accidentally applied, the 0.5A fuse of
the external unit will trip in order to protect the electronic
board. In this case, attempt to restore communication by
moving connector BLU from OC to EMG on the external unit
electronic board.
Terminals 3-4: configurable input for activation of the anti-Le-
gionella function (to purchase separately, to-
gether with a timer, and to be connected by the
installer) or alternatively for the cooling/heating
selection (by setting parameter di2 to SEA). The
action of the respective tiles is inhibited in this
case. Leave the contact open to override the de-
vice in heating and close it cooling.
By activating the anti-Legionella function, the regulator can
conduct the thermal disinfection procedures autonomously on
hot water systems equipped with recirculation, considerably re-
ducing the risk of the presence and proliferation of the bacteria
causing Legionella.
The variables in the systems in which our products may be in-
stalled do not allow the total exclusion of the risk.