Radiant RHA 28/100 User manual

SEDBUK BAND B
GAS COUNCIL NUMBER: 47- 651-31
User instructions.
CE 0694 TA05B100.A0306
Technical specification by RADIANT BRUCIATORI S.p.A. Montelabbate (PU) ITALY ENGLISH
User Manual
for model
RHA 28/100
Condensing boiler
with storage cylinder

USER INSTRUCTIONS
TA05A100.A0306
2
BOILER OPERATING INSTRUCTIONS.
Make sure that the authorised technician who tested the boiler has stamped the guarantee booklet.
The installation, first start-up, regulation and maintenance operations must be carried out exclusively by qualified
personnel (e.g. Radiant authorised Service Centres). Incorrect installation can cause damage to property and
injury to persons or animals, for which the manufacturer will not be held responsible.
During the installation, the technician must carry out the following checks:
■The data on the rating plate must correspond to that of the mains supply networks (gas, electricity, water).
■The boiler must be regulated according to its designed use and performance.
■The flue gas exhaust and combustion air intake system must be correctly installed and operational.
■The exhaust gas discharge and ventilation systems must comply with the requirements of national and local
standards regardless of whether the boiler is installed indoors, outdoors or in its own cabinet (see section
“Reference standards”.
General warnings
 If there is any doubt as to whether the appliance has been tested by an authorised technician, do not attempt
to start it. All maintenance and gas conversion operations MUST BE CARRIED OUT BY PROFESSIONALLY
QUALIFIED PERSONNEL, registered in accordance with current legislation and according to UNI-CIG
7129/01 and subsequent updates.
 Make sure that the requirements relating to the air intake and ventilation of the room in which the
boiler is to be installed have been complied with.
 The boilers can be installed outdoors in a partially protected location, in accordance with current
standards and where the minimum external temperature does not fall below –10°C. The manufacturer
will not be held responsible for installation in locations where the temperature falls to below –10°C.
 The boiler is fitted with an antifreeze system. If the boiler is installed in a location where there is a risk of
freezing, the anti-freeze system will only come into operation if the appliance is switched on (i.e. with the
boiler switch in the ON position) and the gas supply valve is open. The manufacturer will not be held
responsible for damage to the boiler caused by non-compliance with this instruction.
 Should any part of the boiler freeze-up, do not attempt to light it under any circumstances, but instead call the
Service Centre immediately.
 The Benchmark Book is an integral part of an installation. The Benchmark handbook should be filled-in each
time a boiler is installed. In addition to checking the combustion, all ordinary and extraordinary maintenance
operations must be reported in the booklet together with the name of the person carrying out the maintenance
and, where applicable, his company.
 The appliance’s combustion system must be checked every two years. This check includes testing the
efficiency of the boiler and must be carried out by authorised personnel possessing the qualifications as
required by current law.
 Do not obstruct the ventilation openings in rooms where there are gas-burning appliances installed (boiler,
cooker, etc.).

USER INSTRUCTIONS
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If you smell gas …
ÎDO NOT ACTIVATE ANY ELECTRIC SWITCHES, TELEPHONES OR ANY OTHER DEVICE THAT MAY
GENERATE ELECTRICAL DISCHARGES OR SPARKS.
ÎOPEN DOORS AND WINDOWS IMMEDIATELY TO CREATE A CURRENT OF AIR THAT WILL RAPIDLY
CLEAR THE ROOM.
ÎCLOSE ALL GAS TAPS AND VALVES.
ÎCALL TRANSCO ON 0800 111 999 .
Boiler controls - Control panel
LEGEND
1. ON/OFF SWITCH
2. HEATING TEMPERATURE CONTROL KNOB
3. D.H.W TEMPERATURE CONTROL KNOB
4. OUTSIDE TEMPERATURE DISPLAY BUTTON (ONLY WITH OPTIONAL OUTDOOR SENSOR FITTED)
5. SERVICE BUTTON.
6. SUMMER, WINTER OR SUMMER/WINTER SELECTION BUTTON.
7. TERMINAL BOARD FOR EXTERNAL WIRING.
8. D.H.W FUNCTION INDICATOR (THE BOILER IS IN SUMMER OR SUMMER/WINTER MODE )
a. FIXED LIGHT – THE BOILER IS READY TO SUPPLY HOT WATER
b. FLASHING LIGHT - THERE IS A CURRENT DEMAND FOR HOT WATER
9. CENTRAL HEATING FUNCTION INDICATOR (THE BOILER IS IN WINTER OR SUMMER/WINTER MODE )
a. FIXED LIGHT – THE BOILER IS READY TO SUPPLY HEATING
b. FLASHING LIGHT - THERE IS A CURRENT DEMAND FOR HEATING
10. ERROR WARNING LIGHT. THE APPROPRIATE ERROR CODE FLASHES ON THE DISPLAY (13)
11. LED INDICATING SYSTEM WATER PRESSURE AT 1.5 BAR
12. LED INDICATING INSUFFICIENT WATER IN THE SYSTEM
13. TEMPERATURE AND ERROR CODE DISPLAY
12 345
S
76
11 10
8
9
1213
Fig. 1
12 345
S
76
11 10
8
9
1213
Fig. 1

USER INSTRUCTIONS
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Starting - up the boiler
•Open the gas Isolation valve
located under the boiler.
•Switch on the boiler by placing the
ON/OFF switch (1)in the ON
position (fig. 1).
•The boiler will light automatically
(with the WINTER mode selected
and room thermostat connected).
•Check that there are no flashing
numbers on the display 13 (see
error codes). If code 04 flashes and
led 12 is lit, this denotes that there
is no water in the boiler.
Consequently, fill the system as
described in section “Filling the
system”.
■“SUMMER” mode
To switch boiler operation to “SUMMER” mode, press button 6(fig. 1). The boiler will only work for the D.H.W
system. The “SUMMER” mode setting of the boiler is signalled by led 8 lit continuously on the control panel.
The automatic ignition system will light the burner every time there is a demand for domestic hot water. In this
case, led 8on the control panel will flash.
■“WINTER” mode
To switch boiler operation to “WINTER” mode, press button 6(fig. 1). The boiler will only work for the central
heating system. The “WINTER” mode setting of the boiler is signalled by led 9 lit continuously on the control panel.
The automatic ignition system will light the burner every time there is a demand for room heating. In this case, led 9
on the control panel will flash.
■“SUMMER-WINTER” mode
To switch boiler operation to “SUMMER/WINTER” mode, press button 6(fig. 1). The boiler will work for both central
heating/D.H.W systems. The “SUMMER/WINTER” mode setting of the boiler is signalled by led 8and 9 lit
continuously on the control panel.
The automatic ignition system will light the burner every time there is a demand for room heating or domestic hot
water.
■Regulating the heating temperature
The heating temperature is regulated by knob 2 (fig.1).
•Rotating the knob anticlockwise reduces the temperature.
•Rotating the knob clockwise increases the temperature.
•The range of temperature settings for the central heating runs from a minimum of 30°C to a maximum of 80°C,
or, in the case of low temperature operation, from a minimum of 25°C to a maximum of 59°C.
S
9
1
13
6
8
12
Fig. 1
2 3
1011

USER INSTRUCTIONS
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■D.H.W temperature control
The domestic hot water temperature is regulated by
knob 3 (fig.1).
•Rotating the knob anticlockwise reduces the
temperature.
•Rotating the knob clockwise increases the
temperature.
• The range of temperature settings for the
domestic hot water runs from a minimum of 35°C
to a maximum of 60°C.
■Topping-up the system with water
The water pressure in the central heating circuit must
be checked during the entire period of operation of
the boiler. In this respect, the reading on the
pressure gauge M(fig. 1), located on the lower part
of the boiler, must not be less than 1 bar.
If there is insufficient water in the boiler, led 12 on the control panel will light up (fig 1, page 63) and error code “04”
will flash on the display 13.
To bring the system back up to pressure, open the external filling loop valve (fig. 1) and use the pressure gauge M
(fig. 1) to check that the system pressure reaches 1 bar and that led 11 lights up (fig. 1 page 63).
When the operation is complete, close the fill valve.
Diagnostics – Error codes:
This paragraph contains a list of error codes that the boiler may generate on the display 13 (fig. 1 page 63)
together with the relative indications and the operations that the user can carry out to reset the boiler.
If the problem re-occurs after the following actions have been taken, call an authorised Service
Centre.
The Radiant Helpline UK 0870 770 0414
Ionisation block
Led 10 lit continuously.
Check that the gas valve on the boiler and gas meter are open and that there is gas in the mains supply (or in
the tank).
Switch off then switch on the appliance using switch 1on the control panel.
When led 10 goes out and the error code on the display disappears, the boiler will restart.
If the problem persists, Call the Service Centre.
Safety Thermostat tripped
Led 10 lit continuously. Call the Service Centre.
Water Pressure Switch tripped
Led 10 (fig. 1 page 63) lit continuously.
Check the water pressure in the central heating circuit. The reading on the pressure gauge M(fig. 1), located on
the lower part of the boiler, must not be less than 1 bar and led 11 must be lit.
Fig. 1
11
22
44

USER INSTRUCTIONS
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If the pressure is less than 1 bar, top-up the system as described in paragraph “Filling the system”.
The boiler will restart automatically.
If the problem persists, Call the Service Centre.
Heating Sensor malfunction
Led 10 lit continuously. Call the Service Centre.
D.H.W Sensor malfunction (only for combi model)
Led 10 lit continuously. Call the Service Centre.
Parameter programming request
Led 10 lit continuously. Call the Service Centre.
N.B. If the boiler is to be left unused for a long period of time, the user must do one of the following:
Make the boiler safe by disconnecting all the power supplies (electricity and gas), and draining the heating
system and the condensate trap.
Leave the boiler in standby, leaving the electricity and gas supplies connected and, consequently the anti-freeze
function.
2222
55
66

RADIANT BRUCIATORI s.p.a.
Via Pantanelli, 164/166 - 61025 Loc. Montelabbate (PU)
Tel. [phone] • fax. [phone]
e-mail: tecnico@radiant • Internet: http://www.radiant.it
RADIANT HELPLINE UK
Technical Helpline - 0870 770 0414
Spares - 0870 770 0425
Email - [email protected]
THE TECHNICAL DATA AND MEASUREMENTS ARE PROVIDED FOR INFORMATION
PURPOSES ONLY AND ARE NOT BINDING. THE COMPANY RESERVES THE RIGHT
TO APPLY VARIATIONS WITHOUT PRIOR NOTIFICATION. NEITHER WILL THE
COMPANY BE HELD RESPONSIBLE FOR ANY INACCURACIES IN THIS HANDBOOK
DERIVING FROM PRINTING OR TRANSLATION ERRORS. E+OEALL RIGHTS
RESERVED. NO PART OF THIS DOCUMENT MAY BE REPRODUCED, MEMORISED
IN ANY FILING SYSTEMS OR TRANSMITTED IN ANY FORM WHATSOEVER,
INCLUDING ELECTRONIC, MECHANICAL, PHOTOCOPIES, RECORDINGS OR ANY
OTHER MEANS WITHOUT THE COMPANY’S PRIOR WRITTEN APPROVAL.
TA05B100.A0306