Advanced instructions
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7
5. DESCRIPTION OF EAHU AUTOMATICS
5.1. Interaction of EAHU with CO Detection Modules
The CO detection modules should be connected in parallel from the power supply side and alarm contacts side. If a detector detects
concentration of CO exceeding a threshold, then EAHU will start operating.
!
Rated parameters of the protection unit mounted on the VTS-E-0006 electric module PWB have to be taken into account (see
page 3.3).
5.2. Connecting control components
!
Control components should be connected as shown on the Electric Diagram
No
Location of cable connection
Unit (group)
Diagram ref no.
Conductor
type
Cross-section
[mm
2
]
1.
Joint terminal of converter control
[2] converter
[2] / COM
[2]
1
1
2.
Initiating signal for frequency converter
[2] / START
1
1
3.
Speed I signal for frequency converter
[2] / FC I
1
1
4.
Speed II signal for frequency converter
[2] / FC II
1
1
5.
Speed III signal for frequency converter
[2] / FC III
1
1
6.
Frequency converter alarm contact
FC ALARM
2
1
7.
Joint terminal for CO detector
CO detector
N1F / 24V DC
1
1
8.
CO detector contact indicating exceeding of the first
threshold of CO concentration
N1F / CO I
1
1
9.
CO detector contact indicating exceeding of the second
threshold of CO concentration
N1F / CO II
1
1
10.
CO detector contact indicating exceeding of the third
threshold of CO concentration
N1F / CO III
1
1
11.
CO detector contact indicating unit's failure
N1F / CO ALARM
1
1
12.
Joint terminal for remote control
Remote
control
adjuster
Q2 / 24V DC
1
1
13.
Remote control contact – speed I
Q2 / RC I
1
1
14.
Remote control contact – speed II
Q2 / RC II
1
1
15.
Remote control contact – speed III
Q2 / RC III
1
1
16.
Alarm contact of fire protection control
ALARM
2
1
17.
EAHU lighting
E1
2
1
18.
Damper actuator
2Y1
3
1
19.
Operation confirmation voltage-free contact NO type
X3:23 – X3:22
2
1
20.
Operation confirmation voltage-free contact NC type
X3:23 – X3:22
2
1
21.
External initiating signal
ESP
2
1
22.
Pressure control contact of initial filter
2S1H
2
1
23.
Pressure control contact of secondary filter
2S2H
2
1
5.3. Required Conductors
Conductor
type
Figure
Description
Parameters
[1]
Control cables with copper conductors,
shielded with copper wires, PCV insulated.
Rated voltage: 300/500 V Operating temperature:
-40 up to 70°C
[2]
Multi-conductor cables, single- or multi-wire
copper conductors, PCV insulated.
Rated voltage: 450/750V Operating temperature:
-40 up to 70°C
