Detail reference

FORCED CONVECTION - REGULATION

NATURAL CONVECTION – REGULATION

Regulation of the heating or cooling medium flow forms a central role in the correct control of convector heating output. Correct selection of regulation elements guarantees a comfortable ambient temperature and contributes to heating cost minimalization. Fans and thermoelectric actuators are powered by 24 V DC and the fan speed is operated by 0-10V control voltage.

Standard contents

Optional accessories

A set of EC fans with synchronous motor in an aluminium frame.
Featuring very low power consumption and very quiet operation.
FCR-BOX electronic regulator which functions as a terminal
block for connecting the cable from the power supply, thermostat
or BMS and the fan. Ensures smooth operation of the fan at
required speed and independent control of thermoelectric actuators
for heating and cooling.
KORAFLEX Energy FVE models are fitted with switching
230 V AC / 24V DC power supply and a terminal block for connecting
230 V AC from the grille.

230 V AC / 24 V DC power supply according to the maximum
power consumption of the trench heater. Five types of power
supply units are available for 60 W, 100 W, 150 W, 240 W and
480 W. Power supply units are supplied separately for mounting
on the distribution board DIN rail assembly
Junction box. For mounting HDR-60, HDR-100 and HDR-150
power supply units.
SIEMENS 24 V DC RDG 160T or RDG 160KN thermostats
24 V DC Thermoelectric actuator, thermostatic valves, lockshield.
The NTC temperature sensor serves to block the fan until the
water in the heat exchanger has reached a sufficient level of heat
or coolness, thereby optimizing both functionality and power
consumption. It is delivered separately. For proper function it
must be placed on the heat exchanger.

Installation must be carried out in accordance with valid regulations and safety procedures! The manufacturer cannot be held liable for any defects, damages and injuries caused by improper installation.

KORAFLEX Pool-V FVP

For KORAFLEX Pool-V humid environment trench heaters, the standard control system description applies. The difference lies in placing the FCR-BOX in a pattress box with a higher degree of protection. The fan is equipped with stainless steel casing and its electronics are protected against splashing water. For this model we recommend using a temperature sensor that monitors the temperature in the pool area. The sensor is designed for RDG 160T thermostats. The trench heater is not designed to be permanently flooded with pool water. Please familiarise yourself thoroughly with the warranty conditions and conditions of use.

KORAFLEX Energy FVE

It is powered by 230V AC mains voltage. The switched-mode power supply is situated inside the convector and converts mains voltage to 24 V DC. Fan speed is controlled by 0–10 V DC controlled voltage either from the BMS or the thermostat. Electrical installation design must be carried out by a suitably qualified person and must comply with relevant regulations. Installation and maintenance of the electrical installation must be carried out by a qualified electrical technician. Prior to commissioning, an inspection and testing of the electrical installation must be carried out in accordance with ČSN 33 1500. KORAFLEX Energy FVE convectors are powered with 230V alternating current mains
electricity. Therefore the electric branch must be equipped with a residual current device with a tripping current of 30 mA. These trench heaters are to be used solely in dry environments, and only for heating.

RAB 21-DC or RDG 160T thermostat function description

Trench heater output is controlled by fan speed and the flow of heating / cooling medium through the exchanger. The control voltage is 24 V. The RAB 21 DC or RDG 160T Siemens thermostats control the heating medium valve with a thermoelectric actuator, and in addition control fan speed with a control voltage of 0–10V DC. Fan speed may be controlled automatically by the thermostat, or manually in three speed settings. Speed rating is set at a control signal size of 7 V. Fans may be blocked by a temperature sensor (see regulation accessories). Fans start rotating when the temperature of the heating medium exceeds 37 °C. For cooling trench heaters it is recommended to use a second temperature sensor, actuated when the temperature drops below 15 °C. Temperature sensors are available as optional accessories.

Function description with BMS (Building Management System)

The BMS central control system may be used to control trench heaters. One BMS control output directly controls the opening / closing of valves and the other 0–10 V DC output controls fan speed. Rated heat output of trench heaters is achieved at 7 V DC. Valves and fans are supplied with 24 V DC.

Using the KNX system, trench heaters may be controlled with the RDG 160KN thermostat. The thermostat communicates with the KNX system, which transmits and receives data for the trench heater.

REGULATION AND ACCESSORIES

Lockshield - optional accessory

Thermostatic valve - optional accessory

• straight
• size ½" G
• nickel-plated brass
• max. operating pressure: PN 10
• max. operating temperature: 90 °C

• order code:
straight lockshield: REG-LS
corner lockshield: REG-LA

• straight or corner
• preset value: Kv
• size ½" G
• thread: M30×1.5
• nickel-plated brass
• max. operating pressure: PN 10
• max. operating temperature: 90 °C

• order code:

straight thermostatic valve: REG-TVS
axial thermostatic valve: REG-TVA

Brass elbow - optional accessory

Flexible connecting hose - optional accessory

• ½"×½" 90° without rim

• order code: REG-E90

• stainless steel mesh
• connecting nuts: Z½"×½"M
• length: 10, 12, 30 cm

• order code (10 cm): REG-F10

• order code (12 cm): REG-F12

• order code (30 cm): REG-F3

DC power supply 60 W, 100 W, 150 W, 240 W and 480W optional accessory

• switch-mode DC power supply
• silent operation, high efficiency
• DIN rail assembly
• IP 20

• order code: REG-PS60, REG-PS100, REG-PS150,
REG-PS240, REG-PS480

We recommend the output of the power supply is at least 20% more than the resulting sum input of the actuators for this power supply.

Thermoelectric actuator TEP 24 - optional accessory

Junction box - optional accessory

• reset time: 4 min.
• assembly thread standard: M 30×1,5
• cable lengths: 2.5 or 5 m
• closed without voltage
• IP 44
• total height: 65 mm

• supply voltage: 24 V DC
• power consumption <2 W

• order code (2.5 m cable): REG-TEP24-250
• order code (5 m cable): REG-TEP24-500

• embedded in wall
• for installation of AC power source

(60 W, 100 W and 150 W)
• IP 40
• dimensions (w×h×d): 318×258×72 mm

• order code: REG-IB

R-Box - optional accessory

Temperature sensor NTC - optional accessory

• combined with the power supply

it creates the control voltage for the fan
• for use with thermostat with supply voltage of
230 V AC (such thermostat is not offered by LICON)
• 3 programmable speed settings
• input voltage: 230 V/50 Hz
• output signal: 0 to 10 V/1 kΩ
• 4 kV AC galvanic isolation optocouplers
• IP 30
• mounted on DIN rail on distribution board
• ambient operating temperature: 0–40 °C
• dimensions (w×h×d): 70×58×90 mm

• order code: REG-RBOX17

• temperature sensor situated on the exchanger blocks the fan until
the temperature of the exchanger medium is approx. 37 °C in
heating mode, and 15°C in cooling mode
• F4V 4-pipe convectors should be fitted with

2 temperature sensors – one for each circuit
• NTC sensor 10 kΩ at 25 °C
• Cable length: 0.3 m
• Connect to FCR-BOX in the convector
• includes installation clips

• order code: REG-S-NTC

Temperature sensor NTC is delivered separately to the trench heater. In case of a
request to be mounted on the heat exchanger by Licon, please note in your order.

Electronic room thermostat with LCD display
SIEMENS RDG 160T - optional accessory

Electronic room thermostat with LCD display
SIEMENS RDG 160KN - optional accessory

• for 2 and 4 pipe heating systems
• 7-day time program with 8 programmable timers
• automatic or manual heating/cooling changeover
• manual or automatic 3-speed fan control
• operating modes: Comfort, Economy and Protection
• supply voltage 24 V DC, power consumption 1 W
• 0–10 V DC ECM fan
• setpoint setting range: 5 – 40 °C
• adjustable switching differential: 0.5 to 6 K
• IP 30
• dimensions (w×h×d): 93×128×30 mm
Accessories
• can be combined with separate QAA32 room temperature
sensor, eg. for installations in humid enviroments
• IRA211 infrared remote control

• order code: REG-RDG160T

• for 2 and 4 pipe heating systems

• 7-day time program with 8 programmable timers
• automatic or manual heating/cooling changeover
• KNX communication via S-mode and LTE-mode,
apliable with BMS
• manual or automatic 3-speed fan control
• operating modes: Comfort, Economy and Protection
• supply voltage 24 V DC, power consumption 1 W
• 0–10 V DC ECM fan
• setpoint setting range: 5 – 40 °C
• adjustable switching differential: 0.5 to 6 K
• IP 30
• dimensions (w×h×d): 93×128×30 mm
Accessories
• can be combined with separate QAA32 room temperature
sensor, eg. for installations in humid environments
• IRA211 infrared remote control

• order code: REG-RDG160KN

For correct operation, the thermostat must be set according to LICON operating instructions included in the thermostat packaging. The thermostat is supplied pre-set for 2-pipe heating systems.

Manual room thermostat
SIEMENS RAB 21-DC - optional accessory

QAA32 external room temperature sensor - optional accessory

• for 2-pipe heating systems
• manual 3-speed fan switch
• heating or cooling mode
• supply voltage: 24 V DC, power consumption: 1 W
• 0–10 V DC EC fan
• setpoint setting range: 8–30 °C
• switching differential <1 K
• IP 30
• dimensions (w×h×d): 96×110×36 mm

• order code: REG-RAB21DC

• for measuring temperature in heating
systems where a thermostat cannot be
placed in the room
• suitable for installation at swimming pools
• can be combined with RDG 160T and RDG 160KN
• setpoint setting range: 0–40 °C, accuracy at 25 °C: ± 0.3 K
• NTC sensor, 3 kΩ at 25 °C
• IP 30
• dimensions (w×h×d): 96.4×99.6×36 mm

• order code: REG-S-QAA32

For SIEMENS RDG 160T or SIEMENS RAB21-DC thermostat-controlled FVO, F2V, F4V trench heaters - heating or cooling	For BMS controlled trench heaters - heating and cooling

The RDG 160T thermostat is pre-set for 2-pipe heating systems. For alternative methods of heating, the SIEMENS RDG 160T or RAB21-DC thermostats must be set according to the instructions enclosed, or see downloads.

FVE trench heater basic wiring diagrams	FVE trench heater with SIEMENS RDG 160T or RAB21-DC thermostat controlled trench heater basic wiring diagrams

For SIEMENS RDG 160T or RAB21-DC thermostat controlled FVO and F2V trench heaters - only heating or cooling from more than one source	For SIEMENS RDG 160T thermostat controlled F4V trench heaters - heating and cooling

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