Product Programme; Installation - OJ Electronics OJ GreenZone Master Montageanweisung

English / Instruction
Everyday operation can be accomplished via the built-in web server, a connected
BMS system or a smartphone. See fig. 20.

PRODUCT PROGRAMME

Products from OJ Electronics
Type Product
Master module for controlling max. 25 x OJ Green-
OJ-ZoneMaster
Zone™ Module M units
Zone Module for control of one zone with Direct
OJ-ZoneModule-M
Modbus actuators
Zone Module for control of one zone with 0-10 V
OJ-ZoneModule-A
actuators
Zone Module for control of one zone with MP Bus
OJ-ZoneModule-MP
actuators
OJ-Air2PWR80 Voltage supply unit, 2x24 VAC, 2x60 VA
ETT-KH Cover for OJ GreenZone™ Module M, wall mounting
PTH-6202 Pressure transmitter with Modbus
ETF-1798 PT1000 outdoor temperature sensor (°C)
ETF-598B-5 PT1000 outdoor temperature sensor (°C)
Modbus router, 4 x RJ12 connectors + 8 x 1.5 mm
OJ-Air2Split
terminals
Products from other suppliers
Type Product
Telephone cable, type: TD6006 Black Telephone cable, 6-core, make: INEC
TE Connectivity telephone connector, Modular telephone connector 6/6, RJ12 standard
RJ12 connector
KNX products
Type Product
Weinzierl, BAOS 772, KNX/IP KNX TCP/IP gateway
Arcus -EDS, SK03-TFK KNX sensor, room temperature, relative humidity
Arcus -EDS, AE-S8-CO2-TF KNX sensor, room temperature, relative humidity, CO2
Arcus -EDS, SK03R-T KNX sensor, room temperature, +/- °C offset
Arcus -EDS, SK01-T-KTF1 KNX sensor, temperature (duct mounting)
Züblin Elektro, Swiss Garde 360 KNX KNX sensor, PIR motion sensor
Elsner Elektronik, KNX VOC-UP basic KNX sensor, VOC sensor (wall mounting)
MDT technologies, KNX Binary Input KNX input module for window and frost signals
GIRA, 2104 KNX sensor, room temperature, relative humidity, CO2
4

INSTALLATION

OJ Zone Master should be fitted to a standard 35 mm DIN rail mounted in a metal
enclosure corresponding to the installation site classification (see figs 2 and 3 for
unit dimensions). An overview of the physical configuration of the system is given
in fig. 19.
OJ GreenZone™ Master must be connected to a 24 VAC +/-15% power supply and
is therefore equipped with screw terminals (max. 1.5 mm
Other connections are made by means of a combination of RJ12 connectors and
screw terminals for wires of max. 1.5 mm
Electrical connection (see overview in fig. 1)
In fig. 4, all connectors are marked with a letter (A – P).
See below for descriptions of electrical connection of the various components,
inputs and outputs, and other signals of the OJ GreenZone™ Master.
Connecting analogue outputs, marked "A" (see figs 4 and 5)
OJ GreenZone™ Master is equipped with three analogue outputs (0-10 VDC) (see
figs 4 and 5).
Analogue output 1 is marked "Aou1" (terminal 17) and can be used to control the
speed of the inlet fan of the ventilation system (main unit).
2
Analogue output 2 is marked "Aou2" (terminal 18) and can be used to control the
speed of the exhaust fan of the ventilation system (main unit).
Analogue output 3 is marked "Aou3" (terminal 19) and can be used to control the
speed of the cooling system circulation pump.
The shared ground connection (GND) is marked
In order to control the fans as energy-efficiently as possible, OJ GreenZone™
Module contains a built-in function which constantly optimises damper position.
This optimisation ensures that duct pressure is always as low as possible, that the
zones receive the correct air volume, and that no VAV zone damper is more than
80% open.
If there be a demand for cooling in at least one zone, the inlet temperature of
the main unit is calculated according to the minimum setpoint setting in the OJ
GreenZone™ Master. If there is no demand for cooling in any of the zones, the
inlet temperature of the main unit is calculated according to the lowest calculated
setpoint for the connected zones.
The speed of the cooling water circulation pump is controlled in such a way as to
ensure sufficient pressure for the zone cooling valves to be at least 80% open. The
pressure in the cooling system is thus reduced, also reducing the energy consump-
tion of the cooling pump.
© 2017 OJ Electronics A/S
OJ GreenZone™ Master
2 ) for the purpose.
cross-sectional area.
2
(terminal 16).