Radiant RS 20 E User manual

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CE 0694 ENGLISH
Technical Specification RADIANT BRUCIATORI S.p.A. Montelabbate (PU) ITALY By Technical Department
USER MANUAL
Model RS 20 E - RS 24 E - RS 30 E
TYPE C ROOM SEALED

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User Manual
SYSTEM BOILER – Cod. 99952NA – November 2002
I
BOILER OPERATION AND ADJUSTMENT PROCEDURES FOR USERS
Before turning on the boiler read the following warnings carefully .
Make sure that the warranty booklet carries the stamp of the CORGI registered technician (you can check this by contacting
corgi on 01256.372200) responsible for installing the boiler. Installation, starting up for the first time, adjustments and
maintenance operations must all be carried out solely by qualified technicians. Incorrect installation may cause damage to
persons, animals or property for which the manufacturer cannot be held liable.
WARNING!
⇒ Do not start the boiler unless you are sure it has been thoroughly tested by an authorised technician.
⇒ Check that the regulations regarding air intakes and ventilation of the room where the boiler is installed have been
fully complied with (see installation instructions p.2).
⇒ The anti-freeze system will come into operation only if the boiler is in the «ON» position (with selector switch 1 in
fig. 1 turned to the summer or winter position) and the gas supply turned on. The manufacturer can accept no
responsibility for damage to the boiler caused by lack of observation of these requirements.
⇒ If the boiler should freeze up, under no circumstances attempt to turn it on but call the RADIANT HELP LINE
immediately.
LEGEND (see fig. 1)
1. SUMMER-WINTER ON-OFF SWITCH
2. HEATING TEMPERATURE ADJUSTMENT KNOB
3. SPACE FOR ADDING AN OPTIONAL TIMER
SELF- DIAGNOSTIC LEGEND (see fig. 2)
4. WARNING: LACK OF WATER IN THE SYSTEM
5. WATER PRESSURE LEVEL 1 BAR
6. WATER PRESSURE LEVEL 1.5 BAR
7. WARNING: LOCK-OUT INDICATOR
TURNING ON THE ELECRONIC (by flame
ionisation)
• Open the gas cock under the boiler grill;
• Turn selector switch 1 to the symbol
denoting winter (see fig.1).
• Make sure that 5 and 6 lights are ON (fig.2,
page I, pos. 5 and 6); if light no. 4 is ON, it
means water deficiency in the system: open the
tap on the filling loop and fill the system until a pressure of 1.5 bar has been reached (light no. 6 ON; fig.2) and then close
the tap.
The automatic ignition system will turn the boiler on. It may be necessary to repeat the procedure a few times to purge air from
the pipes. To repeat the ignition procedure in any case wait 3 minutes before turning the boiler off and on again, then try to
ignite it once more.
TURNING OFF THE ELECRONIC IGNITION
 set selector switch 1to the OFF position;
 if the boiler will not be used for long periods it is recommended that the gas cock under the boiler grill be shut off.
REGULATING THE HEATING TEMPERATURE
The heating temperature is regulated by turning knob 2(see fig.1) to the temperature required, chosen from the different values
printed around the selector.
The temperature range goes from a minimum of 35°C to a maximum of 80°C.
40°
0.5 11.5
PRESSURE GAUGE
ELECTRONIC WATER
1.5 STOP
30°
1.50.5 1
1.5 STOP
OFF
AUT
ON
50°
60°
80°
70° OFF
21
40°
45°
50° 55°
60°
3
456 7
Fig. 2
Fig. 1

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User Manual
SYSTEM BOILER – Cod. 99952NA – November 2002
II
RESETTING THE BOILER
If boiler locks-out (see fig. 2 page I), indicator no. 7 ON) proceed as follows:
 wait approximately 3 minutes from the last shut down
 set Main Switch (1) to OFF position (see fig.1 page I)
 set Main Switch (1) either to summer or winter position (see fig. 1 page I). The boiler comes into operation.
If lock-outing persists, turn the boiler OFF and call an authorised service engineer.
WARNINGS FOR THE USER
To keep the boiler in efficient and safe operating condition, carefully follow the instructions listed below:
 Have normal maintenance performed at least once a year by one of our authorised service centres, combustion tests are
necessary every two years and should again be carried out by RADIANT HELP LINE - 01329.828555.
 Periodically check system pressure on the pressure gauge and check that pressure is between 0.5 - 1.5 bar with the
system cold.
 Do not clean the casing or internal parts of the boiler with reducing agents or solvents. Clean only with soap and water.
 Never leave flammable materials in the immediate vicinity of the boiler.
 For greater comfort and more rational use of heat, it is advisable to install a room thermostat connected to a clock timer to
turn the boiler on and off during the course of the day or week.
 The boiler is equipped with an anti-freeze system, which is operative with switch 1 in either SUMMER or WINTER 
position, even if the room thermostat is set at zero, as long as there is electrical power and gas feed.
 Please ensure you have a fully completed BENCHMARK BOOKLET and this is kept with your installation instructions.

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Code 99952NA •November 2002
RADIANT BRUCIATORI S.p.A.
Registered Office:
61025 Montelabbate (PU) Italy •Via Pantanelli, 164
Phone [phone] linee
telefax. [phone] (italy) - [phone] (export)
Email: [e-mail] •[e-mail] •[e-mail]
Internet: http://www.radiant.it
UK – Radiant Helpline – 01329.828555
All descriptions and illustrations contained in this leaflet have been carefully prepared but we reserve the right to make changes and
improvements in our products whitch may affect the accurancy of the information contained in this leaflet. E + OE
A
ll rights reserved. No part of this document may be reproduced, saved in storage systems or transmitted in any form or by any
means, whether electronic, mechanical, photocopying, recording or others, without the Manufacturer's prior authorisation in writing.