Riello NXHM - Page 34

96
ENGLISH
Port provide the control signal to the load.Two kind of control signal port:
Type 1: Dry contact without voltage.
Type 2: Port provide the signal with 220V voltage. If the current of load is <0.2A, load can connect to the port directly.
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Type 2:
13
7153
A1
A2
2648
TBH
Power supply
Contactor
N
16
Type 1:
Load
Running
L N
FUSE
30
26
R1
R2
Control signal port of hydraulic model contains terminals for solar energy, remote alarm, 3-way valve, pump,and external heating source, etc.
The parts wiring is illustrated below:
1. For solar energy kit input signal
SL1
SL2
1
2
CONNECT TO SOLAR
PUMP STATION
230VAC INPUT
Voltage 220-240VAC
Maximum running current (A) 0,2
Wiring size (mm²) 0,75
2. For room thermostat
a. type 1 (RT1) (High voltage)
Method B
RT1
COOL
POWER
IN
HEAT
15
C
H
4
3
L1
15
C
H
4
3
L1
Method A
RT1
POWER
IN
Method C
15
C
H
4
3
L1
RT1
POWER IN
RT1
POWER IN
b. type 2 (RT1) (Low voltage): in main control board of hydraulic module CN31
Method B
RT2
COOL
POWER
IN
HEAT
HTCL
COM
HTCL
COM
HTCL
COM
Method A
RT2
POWER
IN
Method C
RT1
POWER IN
RT1
POWER IN
Voltage 220-240VAC
Maximum running current (A) 0,2
Wiring size (mm²) 0,75
NOTE
There are two optional connect method depend on the room thermostat type.
Room thermostat type1 (RT1) (High voltage): “POWER IN” provide the working voltage to the RT, doesn’t provide the voltage to the RT con-
nector directly. Port “15 L1” provide the 220V voltage to the RT connector. Port “15 L1” connect from the unit main power supply port L of 1- phase
power supply, L2 port of 3-phase power supply.