FEB-24ED 3
!
USER INSTRUCTIONS AND
TECHNICAL INSTRUCTIONS
TTo Domestic Hot W
o Domestic Hot W
ater:
ater:
Minimum 7.7 kW (26,291.07 Btu/h)
Maximum 24.5 kW (83,653.411 Btu/h)
TTo Central Heating:
o Central Heating:
Minimum 7.7 kW (26,291.07 Btu/h)
Maximum 24.5 kW (83,653.411 Btu/h)
BOILER OUTPUT
BOILER OUTPUT
EC-TYPE EXAMINATION CERTIFICATE
0099BU901
Morco House, Riverview Road, Beverley, East Yorkshire, HU17 0LD
Morco Products Ltd
Tel: 01482 325456 Fax: 01482 212869
Website: www.morcoproducts.co.uk
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CONTENTS
Section
Page
1 USERS INSTRUCTIONS 4
2 GENERAL SPECIFICATIONS 8
3 TECHNICAL DATA 10
4 GENERAL INSTALLATION REQUIREMENTS 12
5 INSTALLATION INSTRUCTIONS 15
6 COMMISSIONING INSTRUCTIONS 17
7 ROUTINE SERVING INSTRUCTIONS 18
8 TROUBLESHOOTING 19
9 FAULT CODE TABLE 20
10 WARRANTY CONDITIONS 20
1.- USERS INSTRUCTIONS
GAS SAFETY (INSTALLATION AND USE) REGULATIONS 1998 (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.
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.
INTRODUCTION
The MORCO FEB-24ED 3 is wall hung, room sealed, fan assisted, microprocessor controlled, fully modu-
lating gas combination boiler for providing both central heating and domestic hot water.
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1.-Pressure gauge
2.-Heating service and heating temperature selector
3.-Main control, reset and D.H.W temperature selector
4.-Clock
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5
2
1
6
5.-Orange light. Burner on
6.-Red light lock out
7.- Display (between both knobs)
DOMESTIC HOT WATER SERVICE
Turn the right knob (DHW) in order to turn the boiler on. The display will show "On" indicating that the boiler
is ready to supply Domestic Hot Water (DHW) whenever there is demand for it. When a hot tap is opened the
boiler automatically
water temperature of between 35° and 60° C can be selected by turning the domestic hot water temperature
regulating knob. The value selected will be shown in the display when it is changed with the knob.
to deliver hot water and the orange light will come on indicating the burner is on. A
HOT WATER AND CENTRAL HEATING SERVICE
With the main control switch on and the display showing “On”,
turn the heating selector knob clockwise from the summer setting.. The boiler will
clock/room stat or boiler stat calls for central heating, or a hot tap
is opened for hot water. If a hot tap is opened the boiler gives priority to hot water delivery with the central heating on standby
until the tap is closed.
The temperature of the radiators can be selected between 60ºC
and 85ºC by turning the knob. the value will be shown on the display.
Note: If the boiler has been
operating the control knob. Only the pre-set value set up by the installer will be available
up automatically when either the time
for under heating the temperature cannot be altered by the user
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USING THE PROGRAMMABLE CLOCK
1. Set the correct time by rotating the minute hand until the arrowhead
points at the correct time on the 24 hour dial.
2. Check the position of the manual override switch (just to the bottom of
the clock face). This has three positions:
-Left: is ON overriding the timer mode
-Middle is timer mode, with ON, OFF, times governed by the time clock.
-Right position is OFF. The heating will not work at all regardless of the
main boiler control switch except if triggered by the built in frost protection thermostat.
3. To set on/off times, move all the white tappets , in the outer ring,
between the required 'on' and 'off' times.to the outer position. For example, if you want the heating to come on at 6am and switch off at 10am,
move all the tappets outwards between these two times. Each tappet
represents a quarter of an hour. Set as many on/off times as required
within a 24 hour period
N.B. THE TIME CLOCK MUST BE RESET TO THE CORRECT TIME IF
THE POWER SUPPLY TO THE BOILER HAS BEEN INTERRUPTED
(POWERCUTS/SEASONAL TIME ADJUSTMENT)
RED LIGHT
-LOCK OUT
Should the boiler fail to ignite due to lack of gas, or poor weather conditions etc. It will “lockout” and the red
light will be displayed and the fault code will be shown in the display..
Note: To reset, turn the main control switch to off then turn on again. If the boiler constantly locks out, call your
service engineer.
TURNING THE BOILER OFF
Turn the main control switch to the position.
NOTE: In this position the automatic safety devices such as frost protection and anti pump seizure are still
operative. To shut down completely and isolate the mains supply the plug must be removed from the wall.
GENERAL GUIDANCE NOTES ON HOT WATER DELIVERY
The temperature of the hot water is governed by both the ambient temperature of the cold water supply and
its flow rate through the boiler. I.E. at a flow rate of 10L/min there will be a maximum rise of 35ºC above ambient. At a flow rate of 6.8L/min there will be a rise of 50ºC above ambient, (the slower the flow rate, the greater
the temperature rise).
The flow rate of the hot water is controlled by the hot outlet tap.
The temperature selector on the boiler is effective only when there is either a low water flow rate or a high
ambient water temperature.
- 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.
ON
OFF
ON
OFF
TIMER
- Caution: The boiler can produce water at over 70°C when in central heating mode. If you run a hot
tap when the boiler has been heating the radiators, the initial
hot. DO NOT PLACE YOUR HANDS under the tap or use the shower until this initial
- Allow time (30 seconds) for the temperature to stabilise after making an adjustment at the tap
before making further adjustments.
through the hot tap could be very
has passed.
APPLIANCE SAFETY LOCK-OUT
This boiler has a cut-out indicator built in to it. Whenever a malfunction is detected
in the boiler, the boiler switches o
(red indicator light) To reset the boiler rotate the main control knob to the position
and go back to the chosen position. Some lockout sequences require the thermistors
to cool to within normal operating temperatures before the boiler will reset. 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 o
ation until all of the air has been purged from the system.
due to the presence of air in the pipes. In cases such as these, repeat the ignition oper-
automatically and the cut-out indicator lights up
FROST PROTECTION
Providing the boiler power supply and gas supply is connected the boiler will automatically on minimum
when near freezing conditions are detected. When the temperature in the system reaches 20°C it will
switch o
NOTE:It is still necessary to drain the domestic hot and cold water system.
. For winter storage see notes at the end of this section.
ANTI PUMP SEIZURE DEVICE
When central heating is not being used, but the boiler is in the summer setting (for domestic hot water only)
the pump will automatically run for 30 seconds every 23 hours to prevent it seizing. If the appliance has been
shut down with the electrical supply switched o
found to have jammed when the appliance is switched back on. If so, consult your installer or service engineer.
NOTE: Seized pumps are not covered under warranty.
for a period, this device will not work. The pump may be
PRESSURE GAUGE
The pressure gauge should indicate approximately between 0,8 and 1,6 bar. If the pressure is seen to
decrease over a period of time there is a water leak. The boiler is
ing below a pressure of 0.8 bar.
with a safety device to prevent it work-
ROUTINE SERVICING
To ensure continued safe and e cient 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 competent gas
registered engineer.
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 room sealed gas boiler and therefore the
OBSTRUCTED under any circumstances. If it is damaged, turn o
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
by a competent gas registered engineer.
the appliance and consult your installer,
terminal MUST NOT BE
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