alre HTFRD Series User manual

HTFRD-xxx.xxx – 4 or 8 channel radio heating controller in IP65 compliant housing

HTFRL-xxx.xxx – 4 or 8 channel radio heating controller in IP20 compliant housing

Function Type 120

Revision 07.2011 (11/076) 1 5 21 437 02

Safety Instructions

This device may only be opened by a qualified electrical technician and installed in

accordance with the corresponding wiring diagram in the casing cover/on the

casing/in the operating instructions. When doing so, current safety regulations

should be followed. Caution: Operating near devices that do not conform to EMC

guidelines can adversely affect the function of this device. After installation, the

installing company should instruct the user on the functions and operation of the

control. The operating instructions should be stored at a location that can be easily

accessed by operational and service personnel.

Table of Contents

11. Quick Reference Guide

12. Use

13. General Function / Installation / Maintenance

13.1 Pump control

13.2 Valve and pump protection

14. Initial Operation

14.1 Channel selection

14.2 Registration function (establishing the wireless connection)

14.3 Registrable transmitter types (function types)

14.4 Installation mode indication

14.5 Wireless connection function and assignment check

15. Indicator Lights on the Wireless Temperature Control

16. Measuring the Temperature from Multiple Wireless Room Temperature

Sensors (Calculating the Average)

16.1 Master-slave control (automatic operation for multiple rooms via central

wireless room temperature sensor with a clock)

16.1.1 Explanation of terms

16.1.2 Installation of master-slave control and time zones

16.1.3 Master-slave functions

17. Deregistration of All Wireless Room Temperature Sensors of a Channel

from the Wireless Heating Control (Deletion of Entire Reception Channel)

17.1 Deregistration of individual wireless room temperature sensors from the

wireless heating control

18. Failsafe Operation and Display When Wireless Connection Is Interrupted

19. Accessories (not included in the scope of delivery)

10. Technical Data

11. Wiring Diagram and Dimensioned Drawing

12. Possible Combinations of Wireless Room Temperature Sensors

(Transmitters) and Wireless Heating Controls (Receivers)

13. Warranty

1. Quick Reference Guide

1.) Connect the power supply or installation battery to the wireless heating control

(receiver) and start up the wireless room temperature sensor (transmitter).

2.) Select the channel on the wireless heating control (light turns yellow) and briefly

press the register button 씮 The light on the selected channel flashes red.

3.) Switch the wireless room temperature sensor to registration mode until the light

on the selected channel of the wireless heating control flashes green. The lights

on the other channels return to their initial state.

4.) Mount the wireless room temperature sensor at suitable location, set the desired

temperature. The control is now active.

This multi-channel wireless heating control (receiver) was specially designed for

installation in heater circuit distribution boxes, to control thermoelectric valve gears

closed in de-energized state, and is operated with one or more wireless room tempe-

rature sensors (transmitters) per channel. Wall-mounting is also possible near on-

wall heating circuit distributors or on other flat surfaces. You may also have to install

temperature limiters. For uses which were not anticipated by the manufacturer, follow

the applicable safety regulations. With regard to suitability for unanticipated uses, see

Item 13, Warranty.

3. General Function / Installation / Maintenance

The HTFRD/HTFRL receives the target and actual values from the registered wireless

room temperature sensors and switches the heating on when the temperature drops

below the target value. Up to nine wireless room temperature sensors (transmitters)

of different types can be registered with each channel of the wireless heating control

(receiver) (see Item 4.3). In the event of a power failure or when starting up the

device again after being switch off, the registered wireless room temperature sensors

are still saved. After the power has been restored, the control is active again within

3.1 Pump control

The HTFRD/HTFRL has an output for connecting a heating circuit pump. For every heat

request, the pump is triggered together with the valve gear without a switch-on/switch-

off delay. After the last valve gear is closed, the pump is also turned back off.

3.2 Valve and pump protection

The valve and pump protection helps prevent the valve seat and/or pump from failing

due to corrosion when they are not used for a long period of time. This protection is

activated by the wireless room temperature sensor with a clock (transmitter). The

wireless room temperature sensor with a clock transmits the signal to the wireless

heating control on Monday from 11:00 to 12:00 (noon). During this time, the wireless

heating control activates the valves and pump once for five minutes. The valve and

pump protection is only activated if heating has not been used within the past seven

days. Unneeded heating up during the heating season is thereby avoided and the

control is not affected.

Channel indicators

Label fields

Channel selection button

4. Initial Operation

We recommend that you first label the individual channels on the top part of the device

according to the piping and install the individual wireless room temperature sensors in

their designated rooms. You can then remove the top part of the device (which contains

the receiver) and install a 9V installation battery.This way, you can register the wireless

room temperature sensors at their installation locations and avoid confusion in the

assignment of the sensors. To detach the receiver, unplug the ribbon cable from the top

part of the device lengthwise. The initial operation described here can also be perfor-

med when the device is closed by turning on the 230V~ power supply at the location

where the wireless heating control is installed. If desired, you can register wireless

room temperature sensors with multiple channels of the wireless heating control. Espe-

cially in large rooms, this enables you to multiply the number of outputs for the water

circuits. After assigning the wireless room temperature sensors to the wireless heating

control, you should check the heating function using the actual transmission path. To

do so, set the target values of the wireless room temperature sensors to the maximum

value. After approximately three minutes, the valve gear stroke indicator shows that hea-

ting is activated. When using valve gears without stroke indicators, perform the check

as described under Item 4.4.

Caution: Due to the control range, this check can only be performed when the room

temperature is below 29°C.

4.1 Channel selection

The wireless heating control has four or eight channels which you can select using

the channel selection button. Every time you press a button, the next channel is

selected. The selected channel is yellow, and all other channel indicators are off. If

the last channel is selected, the next button press cancels channel selection and

displays the status of all channels again. You can now begin channel selection again

by pressing the channel selection button.

2. Use

4.2 Registration function (establishing the wireless

connection)

The registration function is used to assign a wireless room temperature sensor

(transmitter) to the corresponding channel of the wireless heating control (receiver).

Before registration:

A wireless room temperature sensor can be registered with the corresponding

channel of the wireless heating control in the following three scenarios:

1.) A wireless room temperature sensor has not yet been registered with the desired

channel of the wireless heating control. In this case, the light for this channel is con-

tinuously red.

2.) One or more wireless room temperature sensors were registered with the desired

channel of the wireless heating control within the past hour. In this case, the light for

this channel is green, indicating a working wireless connection to the sensors.

3.) One or more wireless room temperature sensors were registered with the desired

channel of the wireless heating control more than one hour ago. In this case, the

light for this channel is off, indicating a working wireless connection to the sensors.

Registration procedure:

Note: To activate registration mode on the wireless room temperature sensors, follow

their operating/installation instructions. There is usually a register button on the

sensor. However, wireless room temperature sensors with a display may also have a

button combination with indication on the display.

1.) Connect the power supply or installation battery to the wireless heating control

and start up wireless room temperature sensor.

2.) Select the desired channel using the channel selection button.

씮 The light on

the selected channel is yellow, and all other indicators are off.

five minutes. To make the electrical connections, see the wiring diagram under Item

11. For consumers of protection class I, the HTFRD/HTFRL has a PE-clamp to transfer

the protective earth conductor. The JZ-24 magnet set can be used for mounting in a

metal heater circuit distribution box or on other magnetic surfaces (see Item 9). The

wireless room temperature sensor with a clock has an on/off button that can be used

to shut down the control for the channels with which it is registered. The other chan-

nels can only be completely deactivated using an on/off switch in the load current

circuit. Practical tip without a clock transmitter: set the target value to 5°C. This

ensures frost protection. For more information, see Item 8, Failsafe Operation and

Display When Wireless Connection Is Interrupted. The range of the wireless connec-

tion is largely dependent upon the room conditions and the battery charge level of

the wireless room temperature sensors. Reinforced walls and ceilings and metal

casings reduce the effective communications range. If, unexpectedly, difficult receive

conditions are called into being that, for example, are due to additionally placed metal

furniture or to metal-covered insulating materials, these conditions can be compen-

sated by a special housing antenna and a 1.0 m long cable that can be obtained in

addition (see section 9.). This device does not require maintenance.

4.3 Registrable transmitter types (function types)

Function type 120 can have up to nine transmitters registered for each channel in the following configurations.

* A set point generator- or clock-equipped radio room temperature sensor needs to be assigned in addition to the normal radio temperature sensors.

** No more than one radio temperature sensor with set point generator can be assigned. The assigning of another radio room temperature sensor with set point generator

deletes the data stored for the first one. Only the data of the sensor that has been assigned last remain valid.

*** No more than one transmitter can be assigned. The assigning of a second transmitter deletes the data stored for the first one. Only the data of the transmitter that has

been assigned last remain valid.

4.5 Wireless connection function and

assignment check

You use this function to check whether wireless room temperature sensors (transmit-

ters) are correctly assigned to the individual channels of the wireless heating control

(receiver). This makes it easy to find mistakes later on.

씮 Start the registration procedure on the wireless room temperature sensor.

씮 During this time, the light on the wireless room temperature sensor flashes red. If a

channel light on the wireless heating control starts to flash green, the sensor is

registered with this channel and the wireless connection is established.

5. Indicator Lights on the Wireless Heating Control

(applies to each individual channel indicator)

Activation

All lamps on shortly:

Line voltage or installation battery applied – controller ready for operation.

Lamps light green

Installation mode (a transmitter has been assigned to this channel within the last hour

or a function test performed by pressing the learn key at the transmitter).

Normal operation (indications shown without actuating any keys)

Lamps off:

Upon activation = no transmitter has been assigned yet; If transmitters have already

been assigned = normal operating mode.

Lamps light green:

Installation mode (a transmitter has been assigned to this channel within the last hour

or a function test performed by depressing the learn key at the transmitter).

Lamps light red:

Loss of the radio link to one of the transmitters.

Status indication (enabled by depressing the channel selection key once only)

Lamps light yellow:

Relay outputs of the associated channels are being triggered.

Lamps off:

Relay outputs of the associated channels are not being triggered.

Lamps light red:

Channels unoccupied (no transmitters assigned).

Selection of channels and assigning modes (enabled by actuating the channel

selection key repeatedly and, after that, depressing the learn key once only)

Lamp blinks yellow:

Selected channel (all other indicator lamps are off).

Lamp blinks red:

Selected channel is for no more than 30 seconds in assigning mode

(all other indicator lamps are off).

Lamp blinks green:

Assigning mode completed successfully (brief indication only, after that return

to the display indications shown during normal operating mode).

Selection of channels and function enabling the erasure of the entire channel

Function Type Symbol Transmitter Description Maximum Registrable Number per Channel

001 Wireless room temperature sensor for calculating average value 7*

002 Wireless room temperature sensor with a target value regulator 1**

003

Wireless room temperature sensor with a target value regulator and

1**

comfort/energy-saving operation mode switch

004 ECO radio contact 1* / ***

010 Wireless room temperature sensor with a clock 1***

3.) Briefly press the register button on the wireless heating control. 씮 The light on

the selected channel flashes red for a maximum of 30 seconds. If no wireless room

temperature sensor is registered during this time, registration mode ends and all

indicators return to their initial state.

4.) Switch the wireless room temperature sensor to registration mode until the light

on the selected channel on the wireless heating control flashes green.

5.) The wireless room temperature sensor is registered – the control is now active.

Top part of device

(receiver) with

installation battery

4.4 Installation mode indication

The temporary installation mode indication on the wireless heating control helps you to

more quickly check the wireless connection under the actual conditions of use during

installation. Installation mode begins when a wireless room temperature sensor has been

successfully registered and lasts approximately one hour. During this process, the in-

stallation mode for each individual channel is indicated by a continuous green light.

When you register more than one wireless room temperature sensor, the time for this

channel starts over after the last registration procedure. To reduce installation time, any

loss of connection during this time will be indicated after two minutes. For other indica-

tors on the wireless heating control, see Item 5, Indicator Lights. After placing the

transmitter and receiver, you should again check for the continuous green light on the

wireless heating control to make sure that the wireless connection is working. If the

wireless connection has been interrupted, the light on the corresponding channel will

turn red after two minutes. One hour after registration, the lights go out, indicating nor-

mal operation. When using the HTFRD/HTFRL in a heater circuit distribution box, close

the box to perform the check (because of the weaker wireless signal) and then open it

up again after approximately two minutes. When you reopen it, immediately check the

individual channel indicators to see if the connection is established. For valve gears

with a stroke indicator, you can perform the check as described under Item 4.

6. Measuring the Temperature from Multiple Wire-

less Room Temperature Sensors (Average-Value

Control) (see also Items12.4 and 12.5)

If, in addition to the wireless room temperature sensor with a target value regulator or

clock (function type 002, 003 and 010), you register additional wireless room temperature

sensors without a target value regulator (function type 001) on a channel, the wireless

heating control averages all received actual temperature values for this channel. Caution:

Since the temperature control results from the comparison of target and actual values,

you must register a wireless room temperature sensor with a target value regulator or a

clock. If you only register wireless room temperature sensors without target value regula-

tors, the control will not be active, due to the missing target value. Average-value control

should be used in large rooms and rooms with many corners, where uneven heating can

be expected.

6.1 Master-slave control (automatic operation for

multiple rooms via central wireless room

temperature sensor with a clock)

6.1.1 Explanation of terms

Master (main control or pilot control) – is a higher-level control with a higher priority

than the slave control, which influences the temperature control of the room in which it

is installed and is also responsible for energy-saving times and special functions in all

rooms where it has been registered.

Slave (follow-up control or satellite control) – is a lower-level control with less

priority than the master control, which only influences the temperature control of the

room in which it is installed.

Energy-saving times – are time periods when heating is adjusted to a lower room tem-

perature or cooling is adjusted to a higher room temperature in order to save energy.

Energy-saving times are usually during the periodic absence of persons or during rest

periods and can therefore be entered as a clock program in the master.

ECO temperature – ECO (also ECON) comes from the word “economy” and refers to

saving. With regard to room temperature control, energy is saved during the absence of

persons or during rest periods by adjusting the temperature to a value which allows the

consumers to be switched on less often instead of to the comfort temperature.

Special functions – are functions that are activated by the master device. These func-

tions include holiday function, party function, on/off function, self-learning function,

and valve and pump protection. These functions are described in the operating/installa-

tion instructions of the master.

Wireless heating control (also called “receiver” colloquially)

– is a heating control

that receives target and actual temperature values and other special functions wirelessly

and adjusts the heating for the room accordingly.

Wireless room temperature sensor (also called “transmitter” colloquially)

– is a tem-

perature sensor that measures the room temperature and transmits this value to the wi-

reless heating control wirelessly. Wireless room temperature sensors are usually equip-

memory (enabled by actuating the channel selection key repeatedly and, after that,

depressing the learn key once only)

Lamp blinks yellow:

Selected channel (all other indicator lamps are off).

Lamp blinks green:

Channel memory is being erased (by depressing the learn key permanently).

Lamp lights red:

Channel memory erased successfully (by depressing the learn key permanently).

Lamp off:

Learn key has been released – operation in normal operating mode (channel

unoccupied).

Selection of channels and function enabling the erasure of individual transmitters

(enabled by actuating the channel selection key repeatedly and, after that, depressing

the learn key once only)

Lamp blinks yellow:

Selected channel (all other indicator lamps are off).

Lamp blinks green:

Erase mode activated at the transmitter. The radio temperature controller receives the

related cancellation telegram.

Lamp lights red:

The transmitter has been cancelled successfully (brief indication only, after that return

to the display indications shown during normal operating mode).

7. Deregistration of All Wireless Room Temperature

Sensors of a Channel from the Wireless Heating

Control (Deletion of Entire Reception Channel)

This function is required to delete non-functional transmitters from the memory of the

wireless heating control.

씮 Select the channel and then press and hold the register button on the wireless hea-

ting control until the light turns continuous red after approximately ten seconds. The

successful deletion of the entire receiving channel is indicated by a continuous red light

for the deleted channel, and the control is deactivated.

7.1 Deregistration of individual wireless room

temperature sensors from the wireless heating

control

8. Failsafe Operation and Display When Wireless

Connection Is Interrupted

The failsafe function is triggered individually for each channel by battery failure that has

gone unnoticed or if the wireless connection has worsened due to other causes, such

as the rearrangement of metal furniture. If the wireless connection has been interrupted

for one hour, the wireless heating control activates the failsafe function and the corre-

sponding channel light turns red. If the wireless connection is interrupted, a fixed

power-on time of 30% is maintained to keep the room from cooling off and to prevent

frost damage. If multiple wireless room temperature sensors are registered, failsafe

operation is always activated when the connection to a sensor is lost. The 30% power-

on time is segmented into three minutes on and seven minutes off.

10.Technical Data

9. Accessories (not included in the scope of delivery)

Function type: 120

Power supply: 230V~

Valve outputs: 1 NO contact relay per channel, potential 230 V~

Switching capacity:

HTFRx-316.125 Max. 32 thermoelectric valve gears 230V~

HTFRx-214.140 Max. 16 thermoelectric valve gears 230 V~

The distribution to the channels can be selected in any

way you like.

Pump output: 1 NO contact relay, potential 230V~

Switching capacity: 180VA

Connection: Spring-operated plug terminals 0.2 …1.5 mm

Power consumption:

HTFRx-214.140 3.6W (14 VA)

HTFRx-316.125 5W (15VA)

Internal fuse: 4A or 6A. The device fuse also protects the electric

circuits of the valve gears.

Control range: 5 to 30°C

Switching differential: Approximately 0.5K

Receiving frequency: 868.3 MHz

Permissible ambient temp.: -10 to +50°C

Permissible storage temp.: -20 to +70°C

Permissible humidity: Max. 95%, not condensing

Failsafe operation: 30% power-on time (POT 30%)

Mounting type: Screws on wall or magnetic base on magnetic surface

Installation battery: 9V, not included with product

Protection class: II, available PE clamp point to transfer the protective

earth conductor for consumers of protection class I

Protection type: IP65 HTFRD-xxx.xxx

IP20 HTFRL-xxx.xxx

11. Wiring Diagram and Dimensioned Drawing

In order to deregister only one wireless room temperature sensor (transmitter) from

the wireless heating control (receiver), first select the corresponding channel using the

channel selection button. Then switch the wireless room temperature sensor to deere-

gistration mode, and briefly press the register button on the wireless room temperature

control. Follow the operating/installation instructions for the wireless room temperature

sensor. Always check whether a wireless room temperature sensor has been succes-

sfully deregistered as described in Item 4.5. If no more sensors are registered, the

channel light will be red after the wireless room temperature sensor has been deregi-

stered. If additional sensors were registered less than an hour ago, the channel light on

the wireless heating control will be green. If additional sensors were registered more

than an hour ago, the channel light will go out. Caution: If the wireless room tempera-

ture sensor is not deregistered successfully and is removed from the room to be regu-

lated but is still within the transmission range, this leads to an undefined incorrect con-

trol. If the wireless room temperature sensor is not deregistered successfully and is

removed from the transmission range, this leads to a lost connection message and the

failsafe function is activated.

ped with target value regulators to set the desired temperature. An exception is a wire-

less room temperature sensor that is used for calculating the average room temperature

when the room heats unevenly. Wireless room temperature sensors with clocks use a

time-controlled energy-saving function for individual-room temperature control and can

be used as a master

6.1.2 Installation of master-slave control and time zones

(see Items 12.3 and 12.5)

The master-slave control is an extension of an existing individual-room temperature

control. For individual-room temperature control, a wireless room temperature sensor

with a target value regulator (transmitter) is registered with each channel of the wire-

less heating control (receiver). To establish a master-slave control, an additional wire-

less room temperature sensor with a clock is registered with the individual channels of

the wireless heating control. During installation, you do not have to pay attention to the

sequence in which the different wireless room temperature sensors are registered, but

note Item 4.3. No additional wireless room temperature sensors are installed in the

room where the wireless room temperature sensor with clock is. For the master-slave

control, you should pay special attention to the range of the wireless connection, since

installation requires greater transmission paths to be bridged. Therefore, after installation

you should check the wireless connection over the entire transmission path (see Item

4.4).

Wireless room temperature sensor function type 003 has a switch that you can use to

switch between comfort and energy-saving operation modes. Within a master-slave in-

stallation, the ECO function of the switch switches automatically to “participation in

master-slave operation”. In the comfort operation switch setting, the room will not par-

ticipate in master-slave operation, and the temperature is permanently set to the target

value of the room sensor.

For the installation of time zones, a master is required for each time zone and is

registered with the corresponding channels. Only one master can be registered per

channel. When you register a second master, the previous one is deleted. The last

registered master is valid. You can register the master devices with the receiver chan-

nels in any sequence you like.

6.1.3 Master-slave functions

For these functions, also follow the operating/installation instructions for the master

being used.

Energy-saving function – The energy-saving times entered in the master apply to all

rooms in which the master-slave control is installed. During comfort heating times, the

temperatures set on the individual slaves apply. During energy-saving times, the ECO tem-

perature of the master applies, but only if the master’s ECO temperature is lower than the

slave’s comfort temperature. The energy-saving function is activated for all rooms with

slaves when the master is set to the ECO operation mode.

Holiday function – The holiday time entered in the master applies to all rooms in which

the master-slave control is installed. During holiday time, the holiday temperature of the

master applies, but only if the master’s holiday temperature is lower than the slave’s

comfort temperature.

Party function – The party time entered in the master applies to all rooms in which the

master-slave control is installed. Until the end of the party time, the temperature in all

rooms is adjusted according to the comfort temperature values of the individual slaves.

On/off function – The on/off function on the master applies to all rooms in which the

master-slave control is installed. Caution: This function does not provide frost, valve or

pump protection. If these functions are to be provided without switching on the heating

when undesired, set the operation mode on the master to “ECO energy-saving opera-

tion” and set an appropriate desired ECO temperature for the frost protection. You can

also set the target temperature in all rooms to the minimum.

Self-learning function – If the self-learning function in the adjustment menu of the

master is activated, it applies to all rooms in which the master-slave control is installed.

It is assumed that the times required to heat up the individual rooms are not that diffe-

rent.

JZ-24 – Magnetic attachment set for industrial controls. This attachment set allows

easy mounting to magnetic surfaces, e.g. in metal heater circuit distribution boxes. The

magnetic bases span the vertical mounting profiles of the heating circuit distributors

with a height of 11.5 mm.

JZ-25 – optional antenna for difficult receive conditions (antenna cable not included in

the delivery)

JZ-26 – antenna cable (1m long)

HTFRD-214.140 / HTFRL-214.140 HTFRD-316.125 / HTFRL-316.125

Caution: The failsafe function is activated when a connection is lost, e.g. due to dischar-

ged batteries, even in summer. To prevent the heating from being unintentionally turned on

in seasonally used buildings or rooms, we recommend disconnecting the heating from

power when it is not being used, such as during the summer.

ALRE-IT Regeltechnik GmbH hereby states that this device, if used for

its intended purpose, meets the basic requirements and other relevant provisions

specified in the EC Directive 1999/5/EC.

The Declaration of Conformity for this product is available

at www.alre.de in the internet.

The technical data specified herein have been determined under laboratory conditions and in compliance with generally approved test regulations, in particular DIN

standards. Technical characteristics can only be warranted to this extent. The testing with regard to the qualification and suitability for the client’s intended appli-

cation or the use under service conditions shall be the client’s own duty. We refuse to grant any warranty with regard thereto. Subject to change without notice.

ALRE-IT Regeltechnik GmbH · Richard-Tauber-Damm 10 · D-12277 Berlin

Tel.: +49(0)30/ 399 84-0 · Fax: +49(0)30 / 39170 05 · [email protected] · www.alre.de

13. Warranty

12. Possible Combinations of Wireless Room Temperature Sensors

(Transmitters) and Wireless Heating Controls (Receivers)

12.1 Legend

12.2 Individual-room control

12.3 Master-slave control

12.4 Average-value control of individual rooms 12.5 Master-slave control including average-value

control of individual rooms

Wireless room temperature sensor

(function type 001 – transmitter)