Controlli S.p.A.
16010 Sant’Olcese (GE)
Tel. 010 73 06 1
Fax. 010 73 06 870/871
www.controlli.eu
APPLICAZIONE ED USO
NR9001 is a digital controller for 2- or 4-pipe terminal units (eg. Fan
Coil) with ON/OFF, 3-POINT floating or modulating control valves as
well as with 3-speed or modulating fan. NR9001 is equipped with
Modbus (SLAVE) communication protocol enabling the communi-
cation with other Modbus devices (MASTER).
NR9001 is also equipped with a second Modbus communication bus
dedicated to communicating with the sensors placed in the envi
-
ronment.
NR9001 is composed of an M6 module for DIN rail mounting and can
be equipped with Modbus room sensors STA60M or STA70M.
TECHNICAL CHARACTERISTICS
Power supply NR9001:
85-265 Vac (isolated);
Protection Degree:
IP 20;
Operation temperature:
2T45°C;
Storage temperature:
-25T65°C.
NR9001 controller inputs
•
Digital Input (DI1)
Window Contact
•
Digital Input (DI2)
Remote Power off / Badge
(1)
•
Digital Input (DI3)
Winter/Summer Change Over
-
Digital Input (DI4)
Comfort/Economy
(1)
•
Analogue Input (S1)
Return Temperature Sensor
(2)
Analogue Input (S2)
Remote Temperature Set
(2)
•
Analogue Input (S3)
Auxiliary loop sensor
(3) (2)
•
Analogue Input (S4)
Auxiliary loop set selector
(3) (2)
(1)
Remote Power off” or “Comfort/Economy” digital inputs can be
used to interface the controller with a Presence Detector to mini-
mize costs for heating and cooling.
When digital inputs are in use they have priority on remote sensor
and supervisory system. If, on the configurator is enabled “BADGE”
function, the digital input DI4 loses its meaning, while the digital
input DI2 enables the electrical loads and switches the operating
mode between Comfort and Economy.
(2)
Sensors with a sensing element NTC10K Ohm @ 25°C.
Accuracy ± 1K, β @ 25°C = 3435
(reference Controlli room sensors S4xxA/B and SNTC-xL)
(3)
S3 and S4 inputs have a different meaning if “changeover auto”
(instead of “Aux Loop”) function is disabled from the configuration
tool. S4 sensor is used to switch the controller operation mode to
Energon
Fan Coil Digital Controller
NR9001
NR9001
CODE
DESCRIPTION
NR9001
Digital fan coil controller with Modbus sensors
STA60M
Modbus 24 Vac/dc temperature sensor
STA60MP
Flush-mounting Modbus 24 Vac/dc temperature sensor
STA60M-2
Wall mounting Modbus 24 Vac/dc temperature sensor
STA60MP-2
Flush-mounting Modbus 230 Vac temperature sensor
STA70M
Wall mounting remote 24 Vac/dc touch sensor
Summer or Winter on the basis of the fluid temperature and for fan
minimum limit function. As an alternative this function can be asso
-
ciated to S3 sensor (if present). S3 sensor is used as minimum limit to
hold the fun if fluid is not warm.
Digital inputs can be enabled using a configuration tool called
“Configuratore NR9001” thanks to which you can also reverse the in
-
puts action. It can be downloaded by our web site www.controlli.eu.
The default status of digital inputs (factory setting) is the following:
DIGITAL INPUT
DEFAULT
DESCRIPTION
WINDOW CONTACT
(4)
N.C.(normally closed)
OPEN – window opened
CLOSED – window closed
REMOTE POWER
OFF
(4)
N.O.(normally open)
OPEN – comfort
CLOSED – off (frost
protection)
(5)
WINTER/SUMMER
CHANGEOVER
N.O.(normally open)
OPEN – Winter
CLOSED – Summer
COMFORT/
ECONOMY
(4)
N.O.(normally open)
APERTO – comfort
CHIUSO – economy
(5)
(4)
These inputs are disabled by default (except winter/summer
changeover, look at table page 16). If you need to enable them
a supervisory system is required.
(5)
See Badge function
For example, in case the window switch is normally opened (closed
window is equivalent to open contact), it is necessary to reverse the
action of the digital input.
NR9001 outputs
1
st
Issue
06/2019
DBL585e
Page 1
STA60MP
STA70M
The device contains electrical and electronic components and is not allowed to be disposed
of as household refuse. All locally valid regulations and requirements must be observed.
