Fagor FEB-20E UK ECOPLUS User Instructions
FEB-20E UK ECOPLUS
USER INSTRUCTIONS
AND
TECHNICAL INSTRUCTIONS
2
CONTENTS
Section Page
1 USERS INSTRUCTIONS 3
2 GENERAL SPECIFICATIONS 6
3 TECHNICAL DATA 9
4 GENERAL INSTALLATION REQUIREMENTS 10
5 INSTALLATION INSTRUCTIONS 14
6 COMMISSIONING INSTRUCTIONS 17
7 ROUTINE SERVING INSTRUCTIONS 19
8 WIRING DIAGRAMS 21
9 FAULT FINDING 22
3
1.1.- GAS SAFETY (INSTALLATION AND USE) REGULATIONS 1996 (AS AMENDED)
It is the law that all gas appliances are installed by a registered person, in accordance with the above regulations. Failure to install appliances correctly could lead to prosecution. It is in your own interest, and that of
safety, to ensure that the law is complied with.
WARNING: It is essential that the appliance is correctly earthed. An electricity supply of 230 V 50 Hz is
required, fused at 3 Amp.
Read these instructions carefully before attempting to operate the appliance. Comply with all applicable
warnings. Do not interfere with any sealed components, and use the appliance only in accordance with these
instructions.
1.2.- INTRODUCTION
The Fagor FEB-20E is a wall hung, room sealed, fan assisted, microprocessor controlled, fully modulating
gas combination boiler for providing both central heating and domestic hot water. The maximum heat output
in either heating or hot water mode is 23.7kW and priority is always given to the supply of hot water.
1.3.- PRELIMINARY WARNINGS
Check all of the gas pipe joints and make sure that gas reaches the boiler (with the gas cock turned on)
Make sure that the central heating circuit is completely full and vented. The pressure gauge should indicate
a pressure of between 0.75 and 1 bar with domestic cold water in the central heating circuit.
Make sure that the boiler is connected to the correct electricity voltage.
Make sure that the air intake and the combustion products outlet are not blocked.
1.4.- DOMESTIC HOT WATER SERVICE
To turn on the boiler turn the main control switch to the summer
setting. The boiler is then ready to supply D.H.W. on demand.
Whenever you turn on any hot tap the boiler automatically turns
on by firing up the burner. By means of the D.H.W. temperature
selector knob, any water temperature of between 35 and 60°C
may be selected.
FEB-20E
4
0
3
2
1
bar
0
60
120
100
20
80
40
6
9
6
12
3
1
8
9
5
4
3
2
1
7
Position: min. max
1.- USERS INSTRUCTIONS
CONTROL PANEL.
1.- Programmable timer
2.- Heating temperature and pressure
gauge
3.- Central heating temperature selector
4.- Main control switch
5.- D.H.W. temperature selector
6.- Green neon light (boiler ready)
7.- Orange neon light (burner functioning)
8.- Red neon light (boiler locked out)
4
1.5.- HOT WATER AND CENTRAL
HEATING SERVICE
Turn the main control switch to the winter setting.
The burner will automatically fire up. By means of the central heating temperature selector control knob,any water temperature of
between 60 and 85°C may be selected. The boiler will remain on
until the temperature selected on the room thermostat or on the
boiler itself is reached.
Whenever there is a demand for D.H.W. from the central heating
setting, the boiler is ready to supply it giving priority to the D.H.W,
with the central heating on standby until the D.H.W. demand cease
GENERAL GUIDANCE NOTES ON HOT WATER DELIVERY
This boiler has a temperature modulation system to control the hot water delivery temperature. However
there are certain circumstances which can “cheat” the system causing a wide variation of temperature at the
outlet. These notes are designed to help the user obtain the best possible performance from the boiler and
avoid situations which could result in unsatisfactory performance.
- The boiler can theoretically supply more than one outlet simultaneously However in practice the tap which
is nearest will receive the most hot water. If the shower is in use and a kitchen tap is opened virtually all
the hot water will be diverted to the kitchen as it offers the least resistance.
- If an outlet is too restrictive it will slow down the flow rate and increase the temperature. For example the
shower - ensure the head is free from blockages caused by scale.
- Due to the restrictive nature of simple mixer showers it is wise to turn the temperature selector down on
the boiler before using the shower.
- If a tap or shower head is too restrictive due to a fault or blockage, the flow rate will be reduced to below
the rate at which the boiler is able to modulate resulting in a wide swing in temperatures. Either fix the
restriction or turn the temperature selector on the boiler down.
- Caution: The boiler can produce water at over 80°°C when in central heating mode. If you run a hot
tap when the boiler has been heating the radiators, the initial flow through the hot tap could be
very hot. DO NOT PLACE YOUR HANDS under the tap or use the shower until this initial flow has
passed.
- Allow time (30 seconds) for the temperature to stabilise after making an adjustment at the tap before making further adjustments.
TURNING THE BOILER OFF
Turn the main control switch to the O setting.
Turn off the gas supply to the boiler
USING THE PROGRAMMABLE TIMER
1. To set correct time rotate minute hand until arrowhead aligns with correct time.
2. To set on/off times move all tappets between ‘on’ and ‘off’ times
required to outer position. is to set ‘on’ at 8am and off at 11am
move all tappets between 8 and 11 to outer position.
3. Set as many on/off times as required within a 24 hour period in
a similar manner to step 2.
4. Manual override switch: This has 3 positions.
- In position I (uppermost) the timeswitch is permanently ‘on’
regardless of tappet positions.
- In the middle position the timeswitch is operating on timed control and will only switch ‘on’ and ‘off’ as
determined by tappet positions.
- In position O (lowest) the timeswitch is permanently off irrespective of tappet positions
3
21
4
6
3
9
12
1
Position: min. max
5
APPLIANCE SAFETY LOCK-OUT
This boiler has a cut-out indicator built in to it. Whenever a malfunction is detected in the ignition of the boiler, the boiler switches off automatically and the cut-out indicator lights up (red indicator light) To reset the boiler press the restart switch. The red indicator light should go out. IMPORTANT: Whenever the boiler has been
left idle for any length of time, or when a new gas bottle is installed (propane models), the appliance may
switch off due to the presence of air in the pipes. In cases such as these, repeat the ignition operation until
all of the air has been vented from the system.
FROST PROTECTION
Providing the boiler power supply and gas supply is connected and the main control switch is in the summer
setting the boiler will automatically fire on minimum setting when near freezing conditions are detected. When
the temperature in the system reaches 30°C it will switch off. For winter storage see notes at the end of this
section.
ANTI PUMP SEIZURE DEVICE
When central heating in not being used, but the boiler is in the summer setting (for domestic hot water only)
the pump will automatically run for three minutes every 24 hours to prevent it seizing. If the appliance has
been shut down with the gas and electrical supply switched off for a period, this device will not work. The
pump may be found to have jammed when the appliance is switched back on. If so, refer to “Routine
Servicing”page 19 .
PRESSURE GAUGE
The pressure gauge should indicate approximately 1 bar. If the pressure is seen to decrease over a period of
time there is a water leak. Consult your installer or service engineer.
ROUTINE SERVICING
To ensure continued safe and efficient operation of the appliance it is recommended that it is checked and
serviced as necessary at regular intervals. The frequency of servicing will depend upon the particular installation conditions and usage but in general once a year should be regarded as a minimum even if only occasional usage has occurred. It is the law that any service work MUST be carried out by a registered engineer
such as CORGI registered personnel.
SAFETY
It is essential that these instructions are strictly followed for the safe and economical operation of this appliance. The appliance is a fan-assisted balanced flue gas boiler and therefore the flue terminal MUST NOT BE
OBSTRUCTED under any circumstances. If it is damaged, turn off the appliance and consult your installer,
or service engineer. If it is known or suspected that a fault exists on the appliance it MUST NOT be used until
the fault has been rectified by a competent person.
PRECAUTIONS AGAINST FREEZING DURING WINTER STORAGE
During cold periods and if the boiler is situated in a place exposed to frosts, the D.H.W. circuit must be drained
down as follows:
- Turn off the cold water Supply
- Open all the hot water outlet taps on the installation (at least one tap should
be found at a level lower than the heater).
- Release the drain plug (shown opposite) which can be seen from under the
boiler.
- When the operation is finished, close the hot water outlet taps and replace
the drain plug.
- To put the boiler back into service, open the cold water inlet tap.
NOTE: In a Caravan Holiday Home installation there may be a drain cock on
the cold inlet under the van which may be used instead of the drain plug on the boiler.
NOTE: It is not necessary to drain the heating circuit if the heating circuit has been filled with anti-freeze.
6
The Fagor FEB-20E is a wall hung, room sealed, fan assisted, microprocessor controlled fully modulating gas
combination boiler for providing both central heating and domestic hot water. It is particularly suitable for
Caravan Holiday Home and Park Home use. Maximum heat output in either heating or hot water mode is
23.7.kW (80.840 Btu/h), and priority is always given to the supply of hot water.
The appliance is supplied with a standard concentric air/flue duct and wall terminal, however additional
elbows, extension kits, vertical flue kit, or twin pipe flue kits are available as optional extras.
The appliance is intended for use with sealed central heating systems and is supplied for use with propane
gas.
The appliance is supplied fully assembled and includes the following principle components:
Burner with stainless steel flamestrips.
Copper heat exchanger.
Induced draught fan for the extraction of combustion products and induction of combustion air.
Modulating gas valve with double safety valves
Circulation pump with manual anti-seizure device and speed selector.
Central heating expansion vessel.
Differential air pressure switch - only allows the boiler to ignite if there is a sufficient supply of air reaching
the burner for satisfactory combustion performance, switching off the boiler in the event of fan failure or
obstruction in either the air inlet or flue products outlet ducts.
Thermistors (NTC) - There are two thermistors fitted for automatic control of the domestic hot water and the
central heating flow temperature.
Safety thermostat for protecting the boiler against any possible overheating by switching off the electricity
supply which in turn cuts off the gas supply. It is reset manually.
Electronic controls, incorporating the following features:
Temperature selection for central heating from between 60 to 85°C.
Temperature selection for domestic hot water from between 35 to 60°C.
Continuous modulation of the gas valve.
Flame control by ionisation
Ignition control
Anti-frost control in the central heating circuit.
Anti - seizure of the pump.
2.- GENERAL SPECIFICATIONS
7
Principal components
1. Back Plate
2. Automatic Air Vent
3. Air pressure switch
4. Heating Thermistor
5.
High limit stat
6. Ionisation
electrode
7. Main Burner
8. Circulation Pump
9. Flow switch
10.
Pressure relief valve
11. Fan
12. Heat Exchanger
13. Combustion Chamber
14. Expansion Vessel
15. Ignition
electrode
16. Domestic Hot Water Thermistor
17. Gas Valve
18. Electronic
s Box
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
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