EXHAUSTO CX3010-20 Ceiling Ventilation Units Installation Guide
- August 20, 2024
- EXHAUSTO
Table of Contents
Electrical installation guide
CX3010-20, CX3030-40 & CX3050-60
with EXcon control system
Original instructions
Product information
1.1 Symbols, terms and warnings
1.1.1 Symbols
Prohibition symbol ** Failure to observe instructions marked with a
prohibition symbol may result in serious or fatal injury.
Danger symbol Failure to observe instructions marked with a danger symbol may
result in personal injury and/or damage to the material.
1.1.2 Use and designations of the manual
These instructions apply to the electrical system of an EXHAUSTO CX air
handling unit, hereinafter referred to as the unit. For accompanying
accessories and additional equipment, please see the product guidelines for
the specific item.
The instruction manual must be fully observed to ensure personal safety and
the safety of others, and to protect equipment and ensure correct operation.
EXHAUSTO A/S accepts no liability for accidents caused by a failure to use the
product in accordance with the manual’s instructions and specifications.
1.1.3 Terms
** These instructions use the following names for airflows as specified in
DS447-2013:
- Supply air
- Extract air
- Outdoor air
- Exhaust air
1.1.4 Warnings
Electrical installation
** The work must be performed by an authorised electrician, in accordance
with locally applicable regulations and legislation.
Opening the air handling unit
Do not open the service doors before the supply voltage has been
disconnected at the isolation switch.
** The isolation switch is located in the connection box on the side of the
air handling unit.
Lock the VEX unit during operation
** The unit must be locked during operation.
1.2 Model plate, location and serial/production number
Information plate**
The CX3000 unit’s data plate displays:
- Type and version (1)
- Serial number/production order number (2)
Location of identification plate
The type plate is located on the side of the air handling unit.
Serial/production order number
Always have the serial number ready when contacting EXHAUSTO A/S about the
product.
Latest version of the guidelines
Important! Always check whether the latest version of the manual is available.
Search EXHAUSTO’s website under Downloads via the instruction number on the
top left-hand side of the instructions.
Connections in the control system panel
2.1 The 3 sizes of wiring diagrams
Explanation of wiring diagrams
The CX3000 series consists of six models 3010-3020-3030-3040-3050-3060, which
in the framework of a wiring diagram are split into three sizes:
- CX3010-20, See attached wiring diagram 0400101.
- CX3030-40, See attached wiring diagram 0400102.
- CX3050-60, See attached wiring diagram 0400103.
The three electrical diagrams show the connection of the supply voltage and various accessory configurations that can be connected to the control system panel.
2.1.1 CX3010-CX3020, Wiring diagram 0400101
http://www.exhausto.com/addresses
EXHAUSTO A/S
Odensevej 76
DK 5550 Langeskov,
Tel.: +45 65 66 12 34
Fax: +45 65 66 11 10
exhausto@exhausto.dk
www.exhausto.dk
Type| Voltage| De-icing principle| Airflow| Wiring
diagram
---|---|---|---|---
CX3010| 1x230V+N+PE ~50/60Hz| Temperature de- icing| 500 m³/h| 0400101
CX3020| 1x230V+N+PE ~50/60Hz| Temperature de- icing| 900 m³/h| 0400101
2.1.2 CX3030-CX3040, wiring diagram 0400102
http://www.exhausto.com/addresses
EXHAUSTO A/S
Odensevej 76
DK 5550 Langeskov,
Tel.: +45 65 66 12 34
Fax: +45 65 66 11 10
exhausto@exhausto.dk
www.exhausto.dk
Type| Voltage| De-icing principle| Airflow| Wiring
diagram
---|---|---|---|---
CX3020| 1x230V+N+PE ~50/60Hz| Temperature de- icing| 1400 m³/h| 0400102
CX3040| 1x230V+N+PE ~50/60Hz| Temperature de- icing| 2000 m³/h| 0400102
2.1.3 CX3050-CX3060, wiring diagram 0400103
http://www.exhausto.com/addresses
EXHAUSTO A/S
Odensevej 76
DK 5550 Langeskov,
Tel.: +45 65 66 12 34
Fax: +45 65 66 11 10
exhausto@exhausto.dk
www.exhausto.dk
Type| Voltage| De-icing principle| Airflow| Wiring
diagram
---|---|---|---|---
CX3050| 3x400V+N+PE ~50/60Hz| Pressure de-icing| 2500 m³/h| 0400103
CX3060| 3x400V+N+PE ~50/60Hz| Pressure de-icing| 3300 m³/h| 0400103
2.2 Terms used and explanation of wiring diagrams
2.2.1 Terms, explanation and standard & customer-selected accessories in
wiring diagrams
Accessories are a direct customer choice, and the options may be generated
from several factors.
| Code | Explanation | Standard | Accessories | Options |
|---|---|---|---|---|
| +A1 | Control system panel | X | ||
| +A2 | CX unit | X | ||
| +A3 | Coil box | X | ||
| +A4 | Customer accessory | X | ||
| +A5 | Customer’s distribution board | X | ||
| -BG1 | PIR sensor | X | ||
| -BQ1 | CO₂ sensor | X | ||
| -BQ2 | Air quality sensor | X | ||
| -E1 | Electric heating coil heating | X | ||
| -E2 | Electric heating coil pre-heater | X | ||
| -E3 | Combination surface | X | ||
| -F1 | Fuse for control system panel | X | ||
| -F2 | Fuse for EXcon Master | X | ||
| – F3 | Fuse for external connection | X | ||
| -F4 | Fuse for exhaust fan | X | ||
| -F5 | Supply air fan fuse | X | ||
| -K1 | EXcon Master | X | ||
| -K27 | Extension module (1) | X | ||
| -K30 | Extension module (2) | X | ||
| -M1 | Exhaust air fan | X | ||
| -M2 | Supply air fan | X | ||
| -M3 | Bypass motor | X | ||
| -M4 | Circulation pump water heating coil | X | ||
| -M5 | Circulation pump water cooling coil | X | ||
| -M6 | Circulation pump Combination coil | X | ||
| -P1 | PTH: Measures pressure across the heat ex- changer | X | ||
| -P2 | Dual PTH: Measures pressure, airflow and temperature | X | ||
| -P3 | Dual PTH: Measures pressure, airflow and temperature | X | ||
| -P4 | PTH 4000: Constant pressure regulation Sup- ply air | X | ||
| -P5 | PTH 4000: Constant pressure regulation Ex- tract air | X | ||
| -PH1 | Standard HMI | X | ||
| -PH2 | HMI with room temperature sensor | X | ||
| S1: | Isolation switch in control system panel | X | ||
| -T1 | Transformer230VAC/2x24VAC | X | ||
| Code | Explanation | Standard | Acces-sories | Options |
| --- | --- | --- | --- | --- |
| -TE1.1 | Extract air temperature | X | ||
| -TE1.2 | Exhaust air temperature | X | ||
| -TE2.1 | Outdoor air temperature | X | ||
| -TE2.1- PRE | Outdoor air temperature (pre-heater) | X | ||
| -TE2.2 | Supply air temperature* | X | ||
| -TE-OT | Outside temperature | X | ||
| -TE-RPT | Water cooling coil supply temperature | X | ||
| -TE-RPT- CC | Combination coil return temperature | X | ||
| -TE-RT | Room temperature | X | ||
| -TE-SPT | Water heating coil return temperature | X | ||
| -X1 | Main supply terminal block | X | ||
| -X2 | Terminal block for fans | X | ||
| -X3 | Terminal block for 24V fuses | X | ||
| -X4 | Terminal block for circulation pumps 230V | X | ||
| -X5 | External connection terminal block | X | ||
| -X_BP | Connector for bypass motor | X | ||
| -X_FAN EX | Extract air fan connector | X | ||
| -X_FAN SU | Connector for supply air fan | X | ||
| -X_RJ12.1 | Modbus T-split 1 | X | ||
| -X_RJ12.2 | Modbus T-split 2 | X | ||
| -X_RJ12.3 | Modbus T-split 3 | X | ||
| -Y1 | Valve, water heating coil | X | ||
| -Y2 | Water cooling coil valve | X | ||
| -Y3 | Valve Combination coil | X |
2.3 Terms and explanation of wiring colours in wiring diagrams
2.3.1 Abbreviations of wire colours
The corresponding wiring diagrams use the following abbreviations for wire
colours.
| Abbreviation | Wire colour |
|---|---|
| BK | Black |
| BN | Brown |
| RD | Red |
| AND | Orange |
| YE | Yellow |
| GN | Green |
| BU | Blue |
| VT | Violet |
| GY | Grey |
| WH | White |
| PK | Light pink |
| GD | Gold |
| TQ | Turquoise |
| SR | Silver |
| GNYE | Green/Yellow |
2.3.2 Identification of wires by colour
400/230VAC Main current:
Phase| Black
Neutral| Blue
Earth| Green/Yellow
230/24VAC control current:
Phase| Red
Neutral| Blue
Earth| Green/Yellow
24VDC control current:
Positive (+)| Red
Negative (-)| White
Signals
Temperature| White
Potential-free| White
Analogue| White
Digital| White
Unknown potential|
---|---
All| Orange
Wiring diagrams – Surface configurations
3.1 Accessory configurations for the control system panel
3.1.1 Description of coils
| Coil | Description |
|---|---|
| HW | Water heating coil |
| PRE-HE | Electric pre-heating coil |
| HE1 | Electric heating coil size 1 |
| HE2 | Electric heating coil size 2 |
| CW | Cooling coil |
| CO | Combi-coil |
| NO | No coils |
3.1.2 Surface configurations
The associated wiring diagrams show the accessory configurations that can
be connected to the control system panel
Page 21- Configuration 1: NO (NO heating/cooling coils)
Page 22 – Configuration 2: HW Water heating coil
Page 23 – Configuration 3: HE1/HE2 (Electric heating coil size 1 or 2)
Page 24 – Configuration 4: CW (Water cooling coil)
Page 25 – Configuration 5: PRE-HE (Electrical preheating coil)
Page 26 – Configuration 6: HW + CW (Water heating coil + water cooling coil)
Page 27 – Configuration 7: HE1/HE2 + CW (Electric heating coil size 1 or 2 +
water cooling coil)
Page 28 – Configuration 8: PRE-HE + HW (Electrical preheating coil + water
heating coil)
Page 29 – Configuration 9: PRE-HE + CW (Electrical preheating coil + water
cooling coil)
Page 30 – Configuration 10: PRE-HE + HE1/HE2 (Electrical preheating coil +
Electric heating coil size 1 or 2)
Page 31 – Configuration 11: PRE-HE + HW + CW (Electrical preheating coil +
water heating coil + water cooling coil)
Page 33 – Configuration 12: PRE-HE + HE1/HE2 + CW (Electrical preheating coil
- Electric heating coil size 1 or 2 + Water cooling coil)
Page 35 – Configuration 13: CO (Combi-coil)
Page 36 – Configuration 14: PRE-HE + CO (Electrical preheating coil + Combi coil)
Page 37 – Options accessories
Page 38 – Options accessories Modbus
3.1.3 Heating coil configurations
The associated electrical diagrams show the heating coil configurations that can be connected to the control system panel.
Page 43 – PRE-HE (Electrical preheating coil with 1 step )
Page 44 – HE1/HE2 (Electric heating coil with 1 step)
Page 45 – PRE-HE (Electrical preheating coil with 2 steps)
Page 46 – HE1/HE2 (Electric heating coil step 2 step)
Electrical components
4.1 Control system panel
For location of electrical components in the control system panel, see the
panel overview on page 10 in the electrical diagram.
4.2 Component list
4.2.1 Component list CX3000
| CX3010 and CX3020| CX3030 and CX3040| CX3050 and CX3060
---|---|---|---
Code| Component
-F1| Control fuse C10A 2P| Control fuse C10A 2P| Control fuse C10A 4P
-F2| Fuse 2.5 A| Fuse 2.5 A| Fuse 2.5 A
– F3| Fuse 2.5 A| Fuse 2.5 A| Fuse 2.5 A
-F4| Fuse (See table)| Fuse (See table)| Fuse (See table)
-F5| Fuse (See table)| Fuse (See table)| Fuse (See table)
-K1| EXcon Master| EXcon Master| EXcon Master
-K27| EXcon EXT| EXcon EXT| EXcon EXT
-P1| Dual PTH| PTH| PTH
-P2| N/A| Dual PTH| Dual PTH
-P3| N/A| Dual PTH| Dual PTH
S1:| Isolation switch| Isolation switch| Isolation switch
-T1| Power supply 24 VAC| Power supply 24 VAC| Power supply 24 VAC
-X1| Terminal block for supply| Terminal block for supply| Terminal block for supply
-X4| Terminal block for circula- tion pump| Terminal block for circula- tion pump| Terminal block for circula- tion pump
-X5| Terminal block for accesso- ries| Terminal block for accessories| Terminal block for accessories
*Table of fan fuses
| CX version | Composite fan – | Metal fan – |
|---|---|---|
| fuse -F4/-F5 | fuse -F4/-F5 | |
| CX3010 | Fuse 2 A | Fuse 2 A |
| CX3020 | Fuse 2 A | Fuse 2 A |
| CX3030 | Fuse 2.5 A | Fuse 3.15 A |
| CX3040 | Fuse 4 A | Fuse 4 A |
| CX3050 | Control fuse C2A 3P | Control fuse C3A 3P |
| CX3060 | Control fuse C2A 3P | Control fuse C3A 3P |
4.2.2 Component list COIL-BOX; EXT(2 )
| CX3010 & CX3020| CX3030 & CX3040| CX3050 & CX3060
---|---|---|---
Code| Component
-K30| EXcon EXT| EXcon EXT| EXcon EXT
-X1| Terminal block| Terminal block| Terminal block
4.2.3 Component list for electric heating coil
| Preheating coil Step 1| Heating coil Step 1| Preheating coil
Step 1 & 2| Heating coil Step 1 & 2
---|---|---|---|---
Code| Component
-E1| Electric heating coil step 1| Electric heating coil step 1| Electric heating coil step 1| Electric heating coil step 1
-E2| N/A| N/A| Electric heating coil step 2| Electric heating coil step 2
-F1| Control fuse 3P| Control fuse 3P| Control fuse 3P| Control fuse 3P
-K1| Contactor heating coil step 1| Contactor heating coil step 1| Contactor heating coil step 1| Contactor heating coil step 1
-K2| N/A| N/A| Contactor heating coil step 2| Contactor heating coil step 2
S1:| Isolation switch| Isolation switch| Isolation switch| Isolation switch
-T1| Fire thermostat 110°C| Fire thermostat 110°C| Fire thermostat 110°C| Fire thermostat 110°C
-T2| Overheating thermostat 70°C| Overheating ther- mostat 70°C| Overheating ther- mostat 70°C| Overheating ther- mostat 70°C
-T3| Air flow switch| Air flow switch| Air flow switch| Air flow switch
-TC1| N/A| Triac control of heating coil| N/A| Triac control of heating coil
-X1| Terminal block for sup- ply| Terminal block for supply| Terminal block for supply| Terminal block for supply
-X3| Terminal block for con- trol signal| Terminal block for control signal| Terminal block for control signal| Terminal block for control signal
-X4| Terminal block for air flow OK| Terminal block for air flow OK| Terminal block for air flow OK| Terminal block for air flow OK
4.2.4 Terminals on EXcon Master
| CX3010 & CX3020| CX3030, CX3040, CX3050 & CX3060
---|---|---
Terminal| Name| Connection of following components
1-2| 24VAC| 24 VAC power supply| 24 VAC power supply
3| Din1| Alarm electric heating coil| Alarm electric heating coil
4| GND| BASE FRAME| BASE FRAME
5| Din2| Alarm preheater| Alarm preheater
6| Din3| Flow electric heaters OK| Fire thermostat 2
7| GND| BASE FRAME| BASE FRAME
8| Din4| Fire alarm| Fire alarm
9| Din5| External high speed| External high speed
10| GND| BASE FRAME| BASE FRAME
11| Din6| Not used| Fire thermostat 1
12| Ain1| CO2 sensor 0–10V| CO2 sensor 0–10V
13| Ain2| Not used| Not used
| CX3010 & CX3020| CX3030, CX3040, CX3050 & CX3060
---|---|---
14| GND| BASE FRAME| BASE FRAME
15| Aou +24 V| Not used| Not used
16| Tin1| Temperature input 1| Temperature input 1
17| GND| BASE FRAME| BASE FRAME
18| Tin2| Temperature input 2| Temperature input 2
19| GND| BASE FRAME| BASE FRAME
20| GND| BASE FRAME| BASE FRAME
21| Aou1| Bypass damper| Bypass damper
22| Aou2| Heating 0–10V| Heating 0–10V
23| Aou3| Cooling 0–10V| Cooling 0–10V
24-25| Dou1| OPERATION SIGNAL| OPERATION SIGNAL
26-27| Dou2| A-alarm output| A-alarm output
28-29| Dou3| Heating-3| Heating-3
30-31| Dou4| Heating-4| Heating-4
32-33| Dou5| Damper| Damper
34-35| Dou6| Combi-coil Heating| Combi-coil Heating
36-37| Dou7| Combi-coil Cooling| Combi-coil Cooling
–| TCP/IP| Network connector RJ45
–| Hand terminal|
–| MODBUS| External modbus communication connector RJ12
–| RS485|
–| RS485 A|
–| RS485 B| Internal Modbus connection
–| RS485 C| Modbus accessories: VOC sensor, HTH sensors and PTH transmit- ters
4.2.5 Terminals on EXcon Extension module EXT (1)
| CX3010 & CX3020| CX3030, CX3040, CX3050 & CX3060
---|---|---
Terminal| Name| Connection of following components
1| GND| Exhaust fan GND| Exhaust fan GND
2| Aou2| Extract fan 0–10V| Extract fan 0–10V
3| GND| Supply air fan GND| Supply air fan GND
4| Aou1| Supply air fan 0–10V| Supply air fan 0–10V
5| +24 V out| Not used| Not used
6| GND| Not used| Not used
7| Ain2| Exhaust fan Tacho| Not used
8| +24 V out| Not used| Not used
9| GND| Not used| Not used
10| Ain1| Supply air fan Tacho| Not used
11| GND| GND| GND
12| Tin1| Supply temperature| Supply temperature
13-14| Dou1| Cool/warm-1| Cool/warm-1
15-16| Dou2| Cool/warm-2| Cool/warm-2
17| Din1| Fire thermostat HCE| Supply air fan
18| GND| Not used| GND
19| Din2| Not used| Extraction fan
20| GND| Not used| GND
21| Tin2| Extract air temperature| Not used
22| GND| GND| Not used
–| RJ12| Internal Modbus connection
–| RJ12| Modbus accessories: PTH
4.2.6 Terminals on EXcon Extension module EXT(2)
| CX3010 & CX3020| CX3030, CX3040, CX3050 & CX3060
---|---|---
Terminal| Name| Connection of following components
1| GND| Not used| Not used
2| Aou2| External Cooling 0–10V| External Cooling 0–10V
3| GND| Not used| Not used
4| Aou1| External Heating 0–10V| External Heating 0–10V
5| +24 V out| Not used| Not used
6| GND| Not used| Not used
7| Ain2| Not used| Not used
8| +24 V out| Not used| Not used
9| GND| Not used| Not used
10| Ain1| Not used| Not used
11| GND| Not used| Not used
12| Tin1| Temperature RPT Water heating coil| Temperature RPT Water heat- ing
coil
13-14| Dou1| Circulation pump Water heating coil| Circulation pump Water
heating coil
15-16| Dou2| Circulation pump Water cooling coil| Circulation pump Water
cooling coil
17| Din1| Not used| Not used
18| GND| GND| GND
19| Din2| Not used| Not used
20| GND| Not used| Not used
21| Tin2| Temperature SPT Water cooling coil| Temperature SPT Water cool- ing
coil
22| GND| Not used| Not used
–| RJ12| Internal Modbus connection
–| RJ12| Modbus accessories: PTH
4.3 Terminal block overview
4.3.1 Terminal block for circulation pump, -X4
Terminal no.| CX3010 and CX3020| CX3030 and CX3040| CX3050
and CX3060
---|---|---|---
PE| Protective Earth| Protective Earth| Protective Earth
PE| Protective Earth| Protective Earth| Protective Earth
N| Neutral| Neutral| Neutral
N| Neutral| Neutral| Neutral
L| 230V AC| 230V AC| 230V AC
4.3.2 Terminal block for circulation pump, -X5
Terminal no.| CX3010 and CX3020| CX3030 and CX3040| CX3050
and CX3060
---|---|---|---
1| Cool/Heat-1| Cool/Heat-1| Cool/Heat-1
2| Cool/Heat-1| Cool/Heat-1| Cool/Heat-1
3| Cool/Heat-2| Cool/Heat-2| Cool/Heat-2
4| Cool/Heat-2| Cool/Heat-2| Cool/Heat-2
5| 24V AC| 24V AC| 24V AC
6| 24V AC| 24V AC| 24V AC
7| 0V AC| 0V AC| 0V AC
8| 0V AC| 0V AC| 0V AC
9| Heating 0-10V| Heating 0-10V| Heating 0-10V
10| GND| GND| GND
11| Cooling 0-10V| Cooling 0-10V| Cooling 0-10V
12| GND| GND| GND
13| Operation signal| Operation signal| Operation signal
14| Operation signal| Operation signal| Operation signal
15| A-alarm| A-alarm| A-alarm
16| A-alarm| A-alarm| A-alarm
17| Heat-3| Heat-3| Heat-3
18| GND| GND| GND
19| Heat-4| Heat-4| Heat-4
20| GND| GND| GND
21| Dampers| Dampers| Dampers
22| GND| GND| GND
23| Combi coil heat| Combi coil heat| Combi coil heat
24| Combi coil heat| Combi coil heat| Combi coil heat
25| Combi coil cool| Combi coil cool| Combi coil cool
26| Combi coil cool| Combi coil cool| Combi coil cool
27| Alarm HCE| Alarm HCE| Alarm HCE
28| GND| GND| GND
29| Alarm preheater| Alarm preheater| Alarm preheater
30| GND| GND| GND
31| Flow electrical heaters OK| Spare| Spare
32| GND| GND| GND
33| Fire alarm| Fire alarm| Fire alarm
34| GND| GND| GND
35| External High Speed| External High Speed| External High Speed
36| GND| GND| GND
37| Fire thermostat 1| Fire thermostat 1| Fire thermostat 1
38| Fire thermostat 2| Fire thermostat 2| Fire thermostat 2
39| CO2 sensor 0-10V| CO2 sensor 0-10V| CO2 sensor 0-10V
40| GND| GND| GND
41| PT1000-1| PT1000-1| PT1000-1
| GND| GND| GND
43| PT1000-2| PT1000-2| PT1000-2
44| GND| GND| GND
45| Supply air temperature| Supply air temperature| Supply air temperature
46| GND| GND| GND
4.3.3 Terminal block for COIL-BOX, -X1_EXT(2)
| Terminal no. | COIL-BOX |
|---|---|
| PE | Protective Earth – Supply from E-box |
| N | Neutral – Supply from E-box |
| L | 230V AC – Supply from E-box |
| PE | Protective Earth |
| PE | Protective Earth |
| 1 | Circulation pump HCW |
| 2 | Neutral |
| 3 | Circulation pump CCW |
| 4 | Neutral |
| 5 | External Heating 0-10V |
| 6 | GND |
| 7 | External Cooling 0-10V |
| 8 | GND |
| 9 | Temperature RPT HCW |
| 10 | GND |
| 11 | Temperature SPT CCW |
| 12 | GND |
| 13 | 24V AC |
| 14 | GND |
| 15 | 24V AC – Supply from E-box |
| 16 | 0V AC – Supply from E-box |
Installation of CX unit
5.1 Scope of installation
5.1.1 Connections in the control system panel
See following table for possible connection of accessories to the terminal
block/EXcon Master in the control system panel.
Possible connections| See page in wiring dia- gram| Terminal
block
---|---|---
Supply voltage| 12|
Circulation pump water heating coil| 22,26,28,32| -X4/-X5
Circulation pump water cooling coil| 24,26,27,29,32,34| -X4/-X5
Circulation pump Combination coil| 35.36| -X4/-X5
Valve, water heating coil| 22,26,28,32| -X5
Water cooling coil valve| 24,26,27,29,32,34| -X5
Valve Combination coil| 35.36| -X5
Supply air temperature sensor| 21-36| -X5
Water heating coil return temperature sensor| | -X5
Water cooling coil, supply temperature sensor| 22,26,28,29| -X5
Combination surface, return temperature sensor| 35.36| -X5
Electric heating coil heating| 23,27,30,33| -X5
Electric heating coil pre-heater| 25,28,29,30,31,33,36| -X5
Combination surface| 35.36| -X5
5.2 Dimensioning and installation
5.2.1 Dimensioning and installation
- The supply cable must be dimensioned and installed in accordance with applicable regulations and legislation.
- The earth terminal (PE) must always be connected.
- The supply voltage is connected to the supply terminals (-X1) in accordance with the diagram on page 12.
5.3 Installation requirements and recommendations
5.3.1 Isolation switch and control fuse
The installer must, in accordance with local applicable laws and regulations,
install:
- One isolation switch (-Q1).
- One fuse (-F0).
5.3.2 Fuse
The fuse must be suitable for:
- Short-circuit protection of the CX unit.
- Short-circuit protection of supply cable.
- Overload protection of supply cable.
5.3.3 Power cable
When dimensioning the power cable, the conditions at the installation site,
including temperature, cable layout and voltage drop must be taken into
consideration.
5.3.4 Electrical connection/data
Supply voltage (nominal)
| CX size | CX air handling unit | PRE-HE | HE1 | HE2 |
|---|---|---|---|---|
| 3010 | 1x230V+N+PE ~ 50/60Hz | 3x400V+N+PE ~ 50/60Hz | N.A. | 3x400V+N+PE ~ |
50/60Hz
3020| 1x230V+N+PE ~ 50/60Hz| 3x400V+N+PE ~ 50/60Hz| N.A.| 3x400V+N+PE ~
50/60Hz
3030| 1x230V+N+PE ~ 50/60Hz| 3x400V+N+PE ~ 50/60Hz| 3x400V+N+PE ~ 50/60Hz|
3x400V+N+PE ~ 50/60Hz
3040| 1x230V+N+PE ~ 50/60Hz| 3x400V+N+PE ~ 50/60Hz| 3x400V+N+PE ~ 50/60Hz|
3x400V+N+PE ~ 50/60Hz
3050| 3x400V+N+PE ~ 50/60Hz| 3x400V+N+PE ~ 50/60Hz| 3x400V+N+PE ~ 50/60Hz|
3x400V+N+PE ~ 50/60Hz
3060| 3x400V+N+PE ~ 50/60Hz| 3x400V+N+PE ~ 50/60Hz| 3x400V+N+PE ~ 50/60Hz|
3x400V+N+PE ~ 50/60Hz
Max. phase current (nominal)
CX size
| CX unit Com- posite wheel [A]| CX unit Steel wheel [A]| PRE-HE [A]| HE1 [A]|
HE2 [A]
---|---|---|---|---|---
3010| 3.4| 3.0| 4.3| N.A.| 4.3
3020| 4.2| 2.8| 7.2| N.A.| 7.2
3030| 5.0| 6.2| 11.5| 5.8| 11.5
3040| 7.0| 7.2| 15.9| 7.9| 15.9
3050| 4.0| 4.8| 20.2| 10.1| 20.2
3060| 4.0| 4.8| 26.0| 13.0| 26.0
5.3.5 Max. fuse
| CX size | CX unit | PRE-HE | HE1 | HE2 |
|---|---|---|---|---|
| 3010 | C-20 | C-20 | C-20 | C-20 |
| 3020 | C-20 | C-20 | C-20 | C-20 |
| 3030 | C-20 | C-20 | C-20 | C-20 |
| 3040 | C-20 | C-32 | C-20 | C-32 |
| 3050 | C-20 | C-32 | C-20 | C-32 |
| 3060 | C-20 | C-63 | C-20 | C-63 |
5.3.6 Outputs for CX unit and electric heating coil PRE-HE, HE1 and HE2
CX size| CX unit Com- posite wheel [kW]| CX unit Steel wheel [kW]| PRE-HE [kW]| HE1 [kW]|
HE2 [kW]
---|---|---|---|---|---
3010| 0.5| 0.4| 3.0| N.A.| 3.0
3020| 0.6| 0.7| 5.0| N.A.| 5.0
3030| 1.1| 1.0| 8.0| 4.0| 8.0
3040| 1.6| 1.6| 11.0| 5.5| 11.0
3050| 2.3| 2.9| 14.0| 7.0| 14.0
3060| 2.3| 2.9| 18.0| 9.0| 18.0
For additional information about the electric heating coil’s technical data, see the CX3000 instructions Assembly and installation.
5.3.7 Short-circuit current
Maximum short-circuit current l K,max according to EN60947.2 is 6 kA
Minimum short-circuit current l K,min with control fuse, see table.
| CX size | CX unit | PRE-HE | HE1 | HE2 |
|---|---|---|---|---|
| 3010 | 0.3kA | 0.3kA | N.A. | 0.3kA |
| 3020 | 0.3kA | 0.3kA | N.A. | 0.3kA |
| 3030 | 0.3kA | 0.3kA | 0.3kA | 0.3kA |
| 3040 | 0.3kA | 0.3kA | 0.3kA | 0.3kA |
| 3050 | 0.3kA | 0.5kA | 0.3kA | 0.5kA |
| 3060 | 0.3kA | 0.5kA | 0.3kA | 0.5kA |
5.3.8 RCCB
The unit must be installed in such a way that persons are protected against
indirect contact with live parts.
If circuit breakers are fitted in the installation, they must be of a type
that meets the following requirements:
- PFI circuit breaker type A according to EN 61008, which interrupts when fault currents with DC content (pulsating direct current) are detected
- The fault current switches must be marked with the following symbol:
- Disconnection time may be max. 0.3 s.
- Leakage current may be max. 300 mA.
Current leakage Leakage current of 10mA may occur in the unit
Recommendations EXHAUSTO recommends using an RCCB with a cut-out time of 0.3
seconds and 300mA.
Scan code and go to addresses atwww.exhausto.com
EXHAUSTO A/S
Odensevej 76
5550 Langeskov, Denmark
Tel.: +45 65 66 12 34
Fax: +45 65 66 11 10
exhausto@exhausto.dk
www.exhausto.dk
Documents / Resources
|
EXHAUSTO CX3010-20 Ceiling Ventilation
Units
[pdf] Installation Guide
CX3010-20, CX3010-20 Ceiling Ventilation Units, Ceiling Ventilation Units,
Ventilation Units, Units
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