Commissioning Modes - Riello NXHP Series Installation, Operation And Maintenance Instructions

2 - INSTALLATION OF UNIT
2.5.6 - Available external static pressure
Data applicable for fresh water application (20°C). If glycol is used,
the maximum water flow is reduced.
Available static pressure NXHP 004
10
9
8
7
6
5
4
3
2
1
0
0 0,5 1
Water flow rate [m
Pump 100%
Pump 80%
Qv nom 004
Available static pressure NXHP 006-008-010
10
9
8
7
6
5
4
3
2
1
0
0 0,5 1
Water flow rate [m
Pump 100%
Pump 80%
Qv nom 006
Qv nom 010
Available static pressure NXHP 012-014 HP
12
10
8
6
4
2
0
0 1
Water flow rate [m
Pump 100%
Pump 80%
Qv nom 012
32
1,5 2 2,5
/h]
3
Pump 95%
Pump 60%
1,5 2 2,5
3 /h]
Pump 95%
Pump 60%
Qv nom 008
2 3 4
/h]
3
Pump 95%
Pump 65%
Qv nom 014

2.6 - Commissioning modes

IMPORTANT:
Field connection of interface circuits may lead to safety risks:
any control box modification must maintain equipment
conformity with local regulations. Precautions must be taken
to prevent accidental electrical contact between circuits
supplied by different sources:
■ The routing selection and/or conductor insulation
characteristics must ensure dual electric insulation.
■ In case of accidental disconnection, conductor fixing
between different conductors and/or in the control box
prevents any contact between the conductor ends and an
active energised part.
Refer to the NXHP wiring diagram supplied with the unit for the
field control wiring of the following features:
■ Safety switch (normally close contact, mandatory)
Three possible control configurations:
1/ Connections to the customer remote control (for more
3
details, refer to sections 3.1 and 4.2.4)
■ On/Off remote switch
■ Heat/Cool select remote switch
■ Home/Sleep select remote switch
■ Alarm/Alert or Operation report...
2/ Connections to the user interface
When the remote-mounted user interface accessory is chosen,
the user interface has to be connected at the terminal block (refer
to §3.7 Unit with remote user interface).
3/ Connections to the customer communication bus
■ The connection to the Proprietary Protocol is carried out using
a connector provided for this purpose inside the control box.
One connector is provided to allow service connection.
3
5