Manual Jablotron UC-241 (page 1 of 2) (English)

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UC-241 / 242 RECEIVER 1/2 MFD51404

UC-241 / UC-242 Receiver

The UC-241 is a 12-channel receiver of signals from TP wireless

thermostats or from JA-60 wireless detectors. The UC-242 is a six-

channel receiver. The two receivers have 12 and 6 outputs

respectively, which can be used to control various devices. LEDs on

the receiver’s front cover indicate the status of each output channel.

Additionally, a power relay is used for a pump control (the relay is on if

any output is triggered).

When used with wireless thermostats, the UC-241 / UC-242 can

efficiently control multi-zone heating and cooling systems.

JA-60M wireless detectors can also be used to control the UC-241´s

or UC-242’s output relays remotely from any switching device (switch,

micro switch sensor etc.). This can be convenient for automation or

control tasks.

The receivers can also receive signals from JA-60S wireless smoke

sensors and JA-60G gas leak sensors.

Specification

Power supply: 24 V AC

Stand by consumption: 0.05 A

Max. supply current: 2 A

Internal current protection: fuse F 3.15 A

Max. output load: max. 2 A per one output and 2 A

totally for all 1-12 outputs

Receiver radio frequency: 433.9 MHz, ISM EN 300220

Working distance: max.100 m in an open area

Dimensions: 165 x 125 x 75 mm (w/o antenna)

EMC EN 300683

Working environment: IP20 EN 60529

Humidity: max. 85 %

Working temperature): -10 to +40

Hereby, Jablotron Ltd., declares that this UC-241 and UC-242 is in

compliance with the essential requirements and other relevant provisions

of Directive 1999/5/EC. Original of the conformity assessment can be

found at the web page www.jablotron.cz

, section Technical support.

Installation

1. Remove the 4 screws holding the front cover and open the

housing. Unplug the internal cable and remove the cover.

2. Attach the UC-241/242 in the desired location with two screws

(provided).

3. Route cables through the housing and connect them to the

terminals (see terminal description and examples of wiring).

4. Plug in the front panel cable and reattach the front cover to the

housing.

Note: Do not locate any cable close to the receiver antenna and

do not install any other UC-241/242 closer than 2 meters (this could

shorten the working distance). If you need a receiver with additional

channels, you can connect two or more receivers with a two-wire data

cable. The jumper setting indicates the master receiver (see Fig.4 )!

Terminals description:

AC, AC – AC power input 24 V AC

L-A, N-A. PE-A - power supply input for the circulatory pump (use

external fuse for its protection)

L-B, N-B. PE-B - terminals for the circulatory pump connection

(the L-B terminal is triggered if any of the 1-12

outputs are switched)

1- 12 – transistor outputs (switch to ground)

COM – common positive output terminals

Indicators

Green LED AC indicates the presence of the receiver’s power

supply. When lit, the receiver is powered.

Indicators 1 to 12 indicate the status of the output channels

(relays).

LED 1 - 12 Description

Off Channel is not used (no transmitter is enrolled)

Steady Green Channel has a transmitter enrolled, relay is off

Steady Red Relay is on (activated by the enrolled transmitter)

Flashing Green Communication with the enrolled transmitter is down

(Low battery in transmitter, radio interference etc.)

Flashing Red Learning mode (to enroll a transmitter)

Enrollment of transmitters

For each channel of the receiver, a transmitter (thermostat or

wireless detector) can be enrolled in the following way:

• Press and hold

or (UP or down) button in order to select the

desired channel (current channel will be indicated by its LED

flashing)

• insert batteries to the transmitter (thermostat or detector). When

powered, the transmitter generates an enrollment signal and its

code is stored in the selected receiver channel’s memory

• enrollment of the transmitter is confirmed by the constant lighting

of the green LED.

Only one transmitter can be enrolled to each UC-241 / UC-242

channel. A transmitter can be enrolled to multiple receivers without any

restrictions. If you try to enroll a new transmitter to an occupied

channel, the new transmitter will be stored and the former one will be

erased.

Erasing of a transmitter

To erase an existing transmitter,:

• using button

or (UP or down) select the desired channel

(current channel will be indicated by its LED flashing)

• press the RESET button and the corresponding LED will turn off

Use and Maintenance

All enrolled transmitters (thermostats and detectors) transmit regular

checking signals. If the receiver does not receive the signal of an enrolled

transmitter for a certain period, it will indicate that communication with this

item is down (flashing green LED) and the corresponding relay will turn off.

A reason for the lost connection can be low batteries in the transmitter.

Average lifetime of the transmitter's batteries is about 1 year. Each

transmitter checks its battery’s conditions and signals in advance if the

batteries are reaching a critically low state (see the transmitter manual for

details).

Another reason of possible connection failure can be from radio

signal interference in the working band of the receiver. In such a case

the UC-241 /UC-242 will usually indicate loss of communication with a

multiple number of transmitters. In this situation, check if there is any

non-approved radio-communicating device in the working range of the

receiver.

Warning: manufacturer is not responsible for any damage caused by

improper installation or non-suitable use of this product.

Note: Although this product does not contain any harmful materials

we suggest you to return the product to the dealer or directly to the

producer after usage

Internet: www.jablotron.cz

Tel.: +420 483 559 999

fax: +420 483 559 993

Pod Skalkou 33

466 01 Jablonec nad Nisou

Czech Republic

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Jablotron UC-241 Manual

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