ENGO CONTROLS ECB8-24 Manual

CONTROL BOX
ECB8-24 | Wired Control Box for Underfloor Heating System, 24V
Quick Guide
Ver. 1.0
Release date: VII 2024
Soft: v1.3
Producer:
Engo Controls sp z o.o. sp. k.
Rolna 4 St.
43-262 Kobielice
Polska
www.engocontrols.com
L2 L1 SL1 L2 L1 SL2 L2 L1 SL3 L2 L1 SL4 L2 L1 SL5
INPUT_1 INPUT_2 INPUT_3 INPUT_4 INPUT_5
Introduction
L2 L1 SL1 L2 L1 SL2 L2 L1 SL3
ECB8-24 control box is the main element of the underfloor heating control system. It has a built-in
THERMOSTAT THERMOSTAT THERMOSTAT THERMOSTAT THERMOSTAT
modules that controls the heat sources and pump (by volt-free relay). The control box allows to
INPUT_1 INPUT_2 INPUT_3
control 8 different zones. It is equipped with 24V AC voltage outputs actuators. Pluggable terminal
LED LED LED LED LED
blocks provide quick and convenient wiring connections. The control box is designed to work with
ACTUATOR ACTUATOR ACTUATOR ACTUATOR ACTUATOR
NC (normally-closed) type actuators.
Product compliance
THERMOSTAT THERMOSTAT THERMOSTAT
OUTPUT_1 OUTPUT_2 OUTPUT_3 OUTPUT_4 OUTPUT_5
This product complies with the essential requirements and other relevant provisions of the following
L2 SL1 L2 SL1 L2 SL2 L2 SL2 L2 SL3 L2 SL3 L2 SL4 L2 SL4 L2 SL5 L2 SL5
EU Directives: EMC 2014/30/EU, Low Voltage Directive LVD 2014/35/EU, RoHS directive 2011/65/EU.
LED LED LED
Safety information
ACTUATOR ACTUATOR ACTUATOR
Use in accordance with national and EU regulations. Device is intended for indoor use only
in dry conditions. Product for indoor use only. Installation must be carried out by a qualified
person in accordance to national and EU regulations.
Before attempting to setup and install, make sure that control box is not connected to any
OUTPUT_1 OUTPUT_2 OUTPUT_3
power source. Installation must be carried out by a qualified person. Incorrect installation
may cause damage to the wiring centre. The control box should not be installed in areas
L2 SL1 L2 SL1 L2 SL2 L2 SL2 L2 SL3 L2 SL3
OUTPUT_1
where it may be exposed to water or damp conditions.
PLEASE NOTE:
N
For the entire installation, there may be additional protection requirements, which the
installer is responsible for maintaining.
Technical Information
Power Supply 24 V AC 50 Hz
Fuse (Total Load Max) 10 A
Pump Load Max 6A
Boiler Load Max 6A
Outputs
Boiler control (NO/COM/NC)
Pump control (NO/COM)
Terminals for actuators (24V AC)
Dimensions [mm] 327 x 110 x 36
Control Box description
1. Cartridge fuse 5 x 20 mm T10A
2. Power supply (AC 24V)
3. Pump control output (volt free)
L2 L1 SL1 L2 L1 SL2
INPUT_1 INPUT_2
THERMOSTAT THERMOSTAT
8
LED LED
ACTUATOR ACTUATOR
OUTPUT_1 OUTPUT_2
L2 SL1 L2 SL1 L2 SL2 L2
L2 L1 SL6 L2 L1 SL7 L2 L1 SL8
INPUT_6 INPUT_7 INPUT_8
Power supply
L2 L1 SL4 L2 L1 SL5 L2 L1 SL6 L2 L1 SL7
N L SL1 N L SL2 N L SL3 N L SL4
THERMOSTAT THERMOSTAT THERMOSTAT
INPUT_4 INPUT_5 INPUT_6 INPUT_7
INPUT_1 INPUT_2 INPUT_3 INPUT_4
LED LED LED
LED LED LED
ACTUATOR ACTUATOR ACTUATOR 24V AC IN
THERMOSTAT THERMOSTAT THERMOSTAT THERMOSTAT
OUTPUT_6 OUTPUT_7 OUTPUT_8
POWER SUPPLY
FUSE 10A
THERMOSTAT THERMOSTAT THERMOSTAT THERMOSTAT L2 L1
L2 SL6 L2 SL6 L2 SL7 L2 SL7 L2 SL8 L2 SL8
LED LED LED LED
ACTUATOR ACTUATOR ACTUATOR ACTUATOR
LED LED LED LED
TR*
ACTUATOR ACTUATOR ACTUATOR ACTUATOR
230V AC 230V / 24V
L
The red LED indicates that the wiring
OUTPUT_4 OUTPUT_5 OUTPUT_6 OUTPUT_7 centre is connected to the power supply.
N
L2 SL4 L2 SL4 L2 SL5 L2 SL5 L2 SL6 L2 SL6 L2 SL7 L2 SL7
OUTPUT_2 OUTPUT_3 OUTPUT_4
SL1 N SL1 N SL2 Power supply for wiring centre is 24 V~, 50Hz. N SL2 N SL3 N SL3 N SL4 N SL4
TR*- Power transformer230/24V AC
Please note: Recommended transformer power for 12 actuators is 30VA.
Recommended transformer is T24-30W.
Fuse
Please note: Replacement of the fuse to be carried out only when the control
box is disconnected from power supply (24 V ~).
Main fuse is located under the housing cover next to power supply terminals and
secures the control box and the devices connected to it. Use ceramic tube slow blow
250 V ROHS fuses (5x20 mm) with nominal max current 10A. To replace fuse remove the
fuse holder with a flat screwdriver and pull out the fuse.
4. Boiler control output (volt free)
5. Thermostats input connections
6. Actuators output connections (AC 24V)
5
L2 L1 SL3 L2 L1 SL4 L2 L1 SL5 L2 L1
INPUT_3 INPUT_4 INPUT_5 INPUT_6
THERMOSTAT THERMOSTAT THERMOSTAT THERMOSTAT
LED LED LED LED
ACTUATOR ACTUATOR ACTUATOR ACTUATOR
OUTPUT_3 OUTPUT_4 OUTPUT_5 OUTPUT_6
SL2 L2 SL3 L2 SL3 L2 SL4 L2 SL4 L2 SL5 L2 SL5 L2 SL6 L2
6
Pump output (volt free)
L2 L1 SL8
N L SL5 N L SL6 N L The PUMP OUTPUT is a potential-free output (COM/NO) controlling a circulating pump SL7 N L SL8
INPUT_8
in the heating system, with a maximum load of 6A. The output is short-circuited (the
INPUT_5 INPUT_6 INPUT_7 INPUT_8
pump starts) always after 3 minutes from the receipt of the heating signal from any
VOLT FREE VOLT FREE
controller connected to this control box. The output is switched off (the pump stops)
when none of the controllers sends the heating signal.
THERMOSTAT
PUMP OUTPUT BOILER OUTPUT
THERMOSTAT NO COM NO THERMOSTAT COM NC THERMOSTAT THERMOSTAT
LED LED LED
LED
24V AC IN VOLT FREE
ACTUATOR
LED LED LED LED
ACTUATOR ACTUATOR ACTUATOR ACTUATOR
OUTPUT_8
POWER SUPPLY PUMP OUTPUT
FUSE 10A
L2 L1 NO COM
L2 SL8 L2 SL8
OUTPUT_5 OUTPUT_6 OUTPUT_7 OUTPUT_8
N SL5 N SL5 N SL6 N SL6 N SL7 N SL7 N SL8 N SL8
max
6A
AC 230V
L
N
PE
7. LED diodes indicators for the operation status of the pump,
boiler and control box power supply connection
8. LEDs 1 to 8 informing about the operation of zones 1-8
SL6 L2 L1 SL7 L2 L1 SL8
INPUT_7 INPUT_8
THERMOSTAT THERMOSTAT
LED
LED LED
24V AC IN
ACTUATOR ACTUATOR
OUTPUT_7 OUTPUT_8
POWER SUPPLY
FUSE 10A
SL6 L2 SL7 L2 SL7 L2 SL8 L2 SL8 L2
1
Boiler control output (volt free)
WIRING CENTRE
The boiler control output is supported by a relay with voltage-free contacts
ECB08M230
(NO / COM / NC output). The boiler must be connected to the COM-NO
or COM-NC contacts. It is a typical two-state relay. In most cases, the NC terminal is not
used. If the thermostats connected to the wiring centre send a signal for heating, the
BOILER output contacts activate the relay with a 3-minute delay, allowing the boiler
to be turned on. The boiler is turned off immediately, when none of the zones sends a
signal for heating.
VOLT FREE
LED LED LED
AC 230V PE AC 230V
BOILER OUTPUT
NO COM
NO COM NC
PUMP OUTPUT PUMP OUTPUT
POWER SUPPLY
FUSE 6.3A
PE
N L N L N L N L
When the Pump/Valve control output is
activated, the pump status LED shows
a constant green light.
Pump status Boiler status Power supply
LED LED LED
LED LED
VOLT FREE VOLT FREE
BOILER OUTPUT
PUMP OUTPUT
L1 NO COM NO COM NC
2 3 4
VOLT FREE
NO COM NC
BOILER OUTPUT
BOILER OUTPUT
NO COM NC
Boiler ON/OFF contacts
(according to the boiler's manual)
BOILER When the BOILER control output is
activated, the boiler status LED shows
a constant green light.
7