User Manual

Control box (5 zones) 230 V
Model: CB500
Manual
T: 01226 323961
E: [e-mail]
SALUS Controls Plc
Units 8-10 Northfield Business Park
Forge Way, Parkgate
Rotherham, S60 1SD
United Kingdom
www.salus-controls.com
SALUS Controls is a member of the Computime Group.
Maintaining a policy of continuous product development SALUS Controls plc reserve the right to change specification,
design and materials of products listed in this brochure without prior notice.
AUG 2021
V17
Introduction
The CB500 control box is the main element of the underoor heating / cooling control system.
It has a built-in module that controls the heat and cool sources. The control box allows you
to control 5 dierent zones. Number of controlled zones can be increased up to 15 zones by
using additional CB500X extension modules (CB500 main control box + two CB500X extension
modules). Each individual zone can be operated by one thermostat. Thermostat which require
230V power supply has to be powered directly from control box. The CB500 has voltage-free
outputs designed to control a boiler, heat pump or chiller. It allows you to switch between
heating and cooling modes. It is equipped with 230V voltage outputs for a pump and
actuators. The spring clamps provide quick and convenient wiring connections. The control box
is designed to work with NC (normally-closed) type actuators. It is recommended to mount it
on a surface or on a DIN rail.
Product compliance
Technical Information
Safety information
This product complies with the essential requirements and other relevant provisions of the
following EU Directives: EMC 2014/30/EU, Low Voltage Directive LVD 2014/35/EU, RoHS
directive 2011/65/EU. The full text of the EU Declaration of Conformity is available at the
following internet address: www.saluslegal.com.
Use in accordance with current 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
qualied person in accordance to current national and EU regulations.
Before attempting to setup and install, make sure that CB500 is not connected to any power
source. Installation must be carried out by a qualied person. Incorrect installation may cause
damage to the control box. The CB500 should not be installed in areas where it may be exposed
to water or damp conditions.
Power Supply 230 V AC 50 Hz
Total Load Max 7 (2) A
Pump / Boiler / HP (Chiller) Relay Load Max 5 (2) A
Inputs Heating / Cooling modes change (volt free)
Dew point sensor
Outputs Boiler control output (volt free)
Heat Pump / Chiller control output (volt free)
Pump control (AC 230V)
Actuators (AC 230V)
Dimensions [mm] 270 x 110 x 55
Control box description
1. Cartridge fuse 5 x 20 mm T10A
2. Power supply
3. NSB (Night Set Back reduction) function
4. Jumpers settings
9. Pump/Valve control output (AC 230V)
10. Actuators output connections (AC 230V)
11. Thermostats input connections
12. CB500X extension input
5
7 8
10
12
3
4
4A 4B
1
11
3
92
6
5. BOILER control output
6. Heat Pump / Chiller control output
Boiler output - this is a volt free output (COM / NO) which
controls heating system boiler. If any of thermostats
connected to the control box sends signal for heating,
BOILER output is activated after 3 minutes delay, giving
permission for boiler to turn ON. If all thermostats
connected to the control box stop sending signal for
heating, then BOILER output is deactivated - this is the
signal for boiler to turn OFF (BOILER output can work with
0min or 15min delay - please refer to chapter 4b).
HP/CHILLER volt free output (COM / NO) is specially
designed to work with the source of heating and cooling
(Heat Pumps) or only cooling (Chillers).
If any of thermostats connected to the control box
sends signal for heating or cooling, HP/CHILLER output
is activated after 3 minutes delay, giving permission for
connected heat pump or chiller to turn ON.
If all thermostats connected to the control box stop
sending signal for heating or cooling, HP/CHILLER output
is deactivated, giving permission for connected heat
pump or chiller to turn OFF (HP/CHILLER output can work
with 0min or 15min delay - please refer to chapter 4b).
It can operate in heating and cooling modes or only in
cooling mode (please refer to chapter 4a).
Boiler ON/OFF contacts
(according to the boiler’s
manual)
4. a) Heat Pump / Chiller logic selection (HP/CHILLER output)
4.
b) Turn OFF delay of the Heat/Cool source (BOILER and HP/CHILLER outputs)
When connecting the HP / CHILLER output to an external heat / cooling source, pay attention to
the setting of the jumper responsible for the HP/CHILLER output.
When the jumper is set to “HP” position (default setting) then HP/CHILLER output (volt free
relay) is activated/deactivated each time thermostat starts (stop) heating or cooling.
When the jumper is set to “CHILLER” position then HP/CHILLER output (volt free relay) is
activated/deactivated only when CB500 is in cooling mode (please refer to chapter 7) and
thermostat starts (stop) cooling.
The factory setting of the jumper is HP
This jumper sets the turn o delay time of the BOILER and HP / CHILLER control outputs.
When the jumper is set to “0 MIN” position (default setting) then BOILER and HP/CHILLER
output (volt free relays) are deactivated immediately when thermostats stop heating or
cooling.
When the jumper is set to “15 MIN” position then BOILER and HP/CHILLER outputs (volt free
relays) are deactivated 15 minutes after thermostats stop heating or cooling.
PLEASE NOTE:
When the jumper is set to 15 minutes delay time you must ensure hydraulic ow in the system
when all actuators are closed. Use a bypass or dierential pressure valve.
2. Power Supply
Power supply for control box is 230 V ~ 50Hz.
Three wire installation should be made
in accordance with the current applicable
regulations.
The
red LED will illuminate
inidicating that the control box is
connected to the power supply.
When the boiler output is activated, the
LED shows a constant green light.
When the Heat Pump / Chiller control output
is activated, the LED shows a constant
green
light.
1. Fuse
Note: Replacement of the fuse to be carried out only when the control box is
disconnected from power supply (230 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 at
screwdriver and pull out the fuse.
3. NSB (Night Set Back reduction) function
The NSB (Night Set Back) function enables you to automatically reduce the setpoint
temperature on non-programmable thermostats via programmable thermostat connected
to the same control box or an extension module. NSB function changes comfort to economic
setpoint temperatures for each thermostat individually. The programmable thermostat, e.g.
installed in the living room, sends a signal to the non-programmable thermostats through a
control box (by wires). Then, the non-programmable thermostats automatically reduce the
setpoint temperature according to the value set on them. The NSB terminal is marked with
the clock icon - all NSB terminals are connected together within control box. The NSB function
works only in a 4-wire installations (see connection diagrams).
4A
4B
5. Boiler control output (volt free)
6. Heat Pump / Chiller control output (volt free)
7. Heating / Cooling modes change input (volt free)
8. Dew point sensor input (volt free)
230 V AC
L
N