USER GUIDE
LOGIC CODE COMBI ESP1
26 33 38
When replacing any part on this appliance, use only spare parts that you can be assured conform to the safety and performance
specification that we require. Do not use reconditioned or copy parts that have not been clearly authorised by Ideal.
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where you can download the relevant information in PDF format.
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February 2018
UIN 215347 A06
CONTENTS
1. Introduction .............................................................. 2
Safety ......................................................................... 2
Electricity Supply ........................................................ 2
Important Notes .......................................................... 2
2. Boiler Operation ....................................................... 3
Controls Diagram........................................................ 3
To Start the Boiler ....................................................... 3
Operation Modes ........................................................ 3
Control of Water Temperature .................................... 3
Efcient Heating System Operation............................ 4
Weather Compensation .............................................. 4
Boiler Frost Protection ................................................ 4
Boiler Restart .............................................................. 4
Mains Power Off ......................................................... 4
3. System Water Pressure ........................................... 4
4. Condensate Drain ..................................................... 5
5. General Information ................................................. 5
Boiler Pump ................................................................ 5
Minimum Clearances .................................................. 5
Escape of Gas ............................................................ 5
Cleaning ..................................................................... 5
Maintenance ............................................................... 5
6. Points for the Boiler User ........................................ 6
Troubleshooting .......................................................... 6
7. Normal Operation Display Codes ........................... 7
8. Fault Codes ............................................................... 8
1. INTRODUCTION
The Logic Code Combi ESP1 is a combination boiler providing
both central heating and instantaneous domestic hot water.
Featuring full sequence automatic ignition and fan assisted
combustion.
Due to the high efciency of the boiler, condensate is produced from
the ue gases and this is drained to a suitable disposal point through
a plastic waste pipe at the base of the boiler. A condensate ‘plume’
will also be visible at the ue terminal.
SAFETY
Current Gas Safety (Installation & Use) Regulations or
rules in force.
In your own interest, and that of safety, it is the law that this
boiler must be installed by a Gas Safe Registered Engineer, in
accordance with the above regulations.
In IE, the installation must be carried out by a Registered Gas Installer
(RGII) and installed in accordance with the current edition of I.S. 813
“Domestic Gas Installations”, the current Building Regulations and
reference should be made to the current ETCI rules for electrical
installation.
It is essential that the instructions in this booklet are strictly
followed, for safe and economical operation of the boiler.
ELECTRICITY SUPPLY
This appliance must be earthed.
Supply: 230 V ~ 50 Hz. The fusing should be 3A.
IMPORTANT NOTES
• This appliance must not be operated without the casing
correctly tted and forming an adequate seal.
• If the boiler is installed in a compartment then the compartment
MUST NOT be used for storage purposes.
•
If it is known or suspected that a fault exists on the boiler then
it MUST NOT BE USED until the fault has been corrected by
a Gas Safe Registered Engineer or in IE a Registered Gas
Installer (RGII).
• Under NO circumstances should any of the sealed components
on this appliance be used incorrectly or tampered with.
This appliance can be used by children 8 years and
•
above. Also persons with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge,
provided they have been given supervision or instruction
concerning use of the appliance in a safe way and
understand the hazards involved. Children shall not play
with the appliance. Cleaning and user maintenance
shall not be made by children without supervision.
All Gas Safe Register installers carry a Gas Safe Register ID card, and have a registration number. Both should be recorded in the
Benchmark Commissioning Checklist. You can check your installer by calling Gas Safe Register direct on 0800 4085500.
Ideal Boilers is a member of the Benchmark scheme and fully supports the aims of the
programme. Benchmark has been introduced to improve the standards of installation and
commissioning of central heating systems in the UK and to encourage the regular servicing of all
central heating systems to ensure safety and efciency.
THE BENCHMARK SERVICE INTERVAL RECORD MUST BE COMPLETED AFTER EACH SERVICE
2
User’s
2. BOILER OPERATION
Legend
A. Domestic Hot Water Temperature Knob
B. Central Heating Temperature Knob
C. Mode Knob
D. Boiler Status Display
E. Burner ‘on’ Indicator
F. Central Heating Economy Setting
G. Pressure Gauge
H. Function Button
I. RESTART Button
ºC
MIN MAX MIN
RESTART
AG D H E
I
BOILER
OFF
e
MAX
B F C
MODE
TO START THE BOILER
If a programmer is tted refer to separate instructions for the
programmer before continuing.
Start the boiler as follows:
1. Check that the electricity supply to boiler is off.
2. Set the mode knob (C) to ‘BOILER OFF’.
3. Set the Domestic Hot Water temperature knob (A) and Central
Heating temperature knob (B) to ‘MAX’.
4. Ensure that all hot water taps are turned off.
Switch on electricity to the boiler and check that all external
5.
controls, e.g. programmer and room thermostat, are on.
6. Set the mode knob (C) to ‘ ’ (winter).
The boiler will commence ignition sequence, supplying heat to the
central heating, if required.
Note. In normal operation the boiler status display (D) will show codes:
00 Standby - no demand for heat.
Central Heating being supplied
Domestic hot water being supplied
FP Boiler frost protection
- boiler will re if temperature is below 5ºC.
During normal operation the burner on indicator ‘ ’ will remain
illuminated when the burner is lit.
Note: If the boiler fails to light after ve attempts the fault code
will be displayed (refer to Fault Code page).
CONTROL OF WATER TEMPERATURE
Domestic Hot Water
The domestic hot water temperature is limited by the boiler
controls to a maximum temperature of 65
domestic hot water temperature knob (A).
Approximate temperatures for domestic hot water:
Knob Setting Hot Water Temperature (approx.)
Minimum 40ºC
Maximum 65ºC
Due to system variations and seasonal temperature uctuations
domestic hot water ow rates/temperature rise will vary, requiring
adjustment at the tap : the lower the ow rate the higher the
temperature, and vice versa.
Central Heating
The boiler controls the central heating radiator temperature to a
maximum of 80oC, adjustable via the central heating temperature
knob (B).
Approximate temperatures for central heating:
Knob Setting
Central Heating Radiator Temperature (approx.)
Minimum 30ºC
Maximum 80ºC
For economy setting ‘
’ refer to Efcient Heating System
Operation.
º
C, adjustable via the
OPERATION MODES
Winter Conditions -
Set the mode knob (C) to ‘ ’ (winter).
The boiler will re and supply heat to the radiators but will give
priority to domestic hot water on demand.
Summer Conditions - (Domestic Hot Water only required)
Set the mode knob (C) to ‘
Set the central heating demand on the external controls to OFF.
Boiler Off
Set the mode knob (C) to ‘BOILER OFF’. The boiler mains
power supply must be left on to enable frost protection (see Frost
Protection).
User’s
(Central Heating and Domestic Hot Water required)
’ (summer).
continued..........
3
EFFICIENT HEATING SYSTEM OPERATION
The boiler is a high efciency, condensing appliance which will
automatically adjust its output to match the demand for heat.
Therefore gas consumption is reduced as the heat demand is
reduced.
The boiler condenses water from the ue gases when
operating most efciently. To operate your boiler efciently
(using less gas) turn the central heating temperature knob
(B) to the ‘
necessary to turn the knob towards the ‘MAX’ position to meet
heating requirements. This will depend on the house and
radiators used.
Reducing the room thermostat setting by 1ºC can reduce gas
consumption by up to 10%.
‘ position or lower. In winter periods it may be
WEATHER COMPENSATION
When the Weather Compensation option is tted to the system
then the central heating temperature knob (B) becomes
a method of controlling room temperature. Turn the knob
clockwise to increase room temperature and anti-clockwise
to decrease room temperature. Once the desired setting has
been achieved, leave the knob in this position and the system
will automatically achieve the desired room temperature for all
outside weather conditions.
BOILER FROST PROTECTION
The boiler is tted with frost protection that operates in all
modes, provided the power supply to the boiler is always
turned on. If the water in the boiler falls below 5ºC, the frost
protection will activate and run the boiler to avoid freezing.
The process does not guarantee that all other parts of the
system will be protected.
If a system frost thermostat has been installed, the boiler must
be set in winter mode, ‘
run.
If no system frost protection is provided and frost is likely
during a short absence from home it is recommended to leave
the system heating controls or built in programmer (if tted)
switched on and run at a reduced temperature setting. For
longer periods, the entire system should be drained.
’, for the system frost protection to
BOILER RESTART
To restart the boiler, when directed in the listed fault codes (see
section 8) press the restart button (I). The boiler will repeat its
ignition sequence. If the boiler still fails to start consult a Gas
Safe Registered Engineer or an IE Registered Gas Installer
(RGII).
3. SYSTEM WATER PRESSURE
The system pressure gauge (G - see page 3)
indicates the central heating system pressure.
If the pressure is seen to fall below the original
installation pressure of 1-2 bar over a period
of time and continue to fall then a water leak
may be indicated. In this event re-pressurise
the system as shown below. If unable to do
so or if the pressure continues to drop a Gas
Safe Registered Engineer or in IE a Registered Gas Installer (RGII)
should be consulted.
THE BOILER WILL NOT OPERATE IF THE PRESSURE HAS
REDUCED TO LESS THAN 0.3 BAR UNDER THIS CONDITION.
To Top up the system :-
1. Ensure both
shown below)
2. Remove the plug and cap and retain.
Connect the lling loop to the Domestic Hot Water (DHW) inlet and
3.
Starting Position
Filling
Loop
Filling Loop
Handle (Blue)
Filling Position
Filling
Loop
& B handles (blue) are in closed position (as
A
Domestic Hot Water
(DHW) Inlet Valve
A
Cap
Plug
Cap
B
Plug
B
A
MAINS POWER OFF
To remove all power to the boiler the mains power switch must
be turned off.
4
tighten. Also ensure that the other end of lling loop is hand tight.
4. Turn the Domestic Hot Water (DHW) Inlet A blue handle to
the horizontal position.
5. Ensuring no leaks are seen, gradually turn the lling loop
B
handle (blue)
6. Wait for the pressure gauge to reach 1 to 1.5 bar.
7. Once pressure is reached turn valves
closed position.
8. Disconnect the lling loop, replace cap and plug. Note there
can be some water spillage at this point.
to the horizontal position.
A
& B back to the
User’s
4. CONDENSATE DRAIN
This appliance is tted with a siphonic condensate trap system
that reduces the risk of the appliance condensate from freezing.
However should the condensate pipe to this appliance freeze,
please follow these instructions:
a. If you do not feel competent to carry out the defrosting
instructions below please call your local Gas Safe Registered
installer for assistance.
If you do feel competent to carry out the following instructions
b.
please do so with care when handling hot utensils. Do not attempt
to thaw pipework above ground level.
If this appliance develops a blockage in its condensate pipe, its
condensate will build up to a point where it will make a gurgling
noise prior to locking out an “L 2” fault code. If the appliance is
restarted it will make a gurgling noise prior to it locking out on a
failed ignition “L 2” code.
To unblock a frozen condensate pipe;
1. Follow the routing of the plastic pipe from its exit point on the
appliance, through its route to its termination point.
Locate the frozen blockage. It is likely that the pipe is frozen at
the most exposed point external to the building or where there
is some obstruction to ow. This could be at the open end of
the pipe, at a bend or elbow, or where there is a dip in the pipe
in which condensate can collect. The location of the blockage
should be identied as closely as possible before taking further
action.
2. Apply a hot water bottle, microwaveable heat pack or a warm
damp cloth to the frozen blockage area. Several applications
may have to be made before it fully defrosts. Warm water can
also be poured onto the pipe from a watering can or similar.
DO NOT use boiling water.
3. Caution when using warm water as this may freeze and cause
other localised hazards.
Once the blockage is removed and the condensate can ow freely,
4.
restart the appliance. (Refer to “To Light the boiler”)
5. If the appliance fails to ignite, call your Gas Safe Registered
engineer.
Preventative solutions
During cold weather, set the central heating temperature knob
(B) to maximum, (Must return to original setting once cold spell is
over).
Place the heating on continuous and turn the room thermostat
down to 15ºC overnight or when unoccupied. (Return to normal
after cold spell).
5. GENERAL INFORMATION
BOILER PUMP
The boiler pump will operate briey as a self-check once every 24
hours, regardless of system demand.
MINIMUM CLEARANCES
Clearance of 165mm above, 100mm below, 2.5mm
and 450mm at the front of the boiler casing must be allowed for
servicing.
Bottom Clearance
Bottom clearance after installation can be reduced to 5mm. This
must be obtained with an easily removable panel to provide the
100mm clearance required for servicing.
ESCAPE OF GAS
Should a gas leak or fault be suspected contact the National Gas
Emergency Service without delay. Telephone 0800 111 999.
Ensure that;
- All naked ames are extinguished
- Do not operate electrical switches
- Open all windows and doors
CLEANING
For normal cleaning simply dust with a dry cloth. To remove stubborn
marks and stains, wipe with a damp cloth and nish off with a dry
cloth. DO NOT use abrasive cleaning materials.
MAINTENANCE
The appliance should be serviced at least once a year by a Gas
Safe Registered Engineer or in IE a Registered Gas Installer
(RGII).
at the sides
User’s
5
6. POINTS FOR THE BOILER USER
Note. In line with our current warranty policy we would ask that you check through the following guide to identify any
problems external to the boiler prior to requesting a service engineer’s visit. Should the problem be found to be other
than with the appliance we reserve the right to levy a charge for the visit, or for any pre-arranged visit where access is
not gained by the engineer.
TROUBLESHOOTING
NO HOT WATER
Check the mains power is turned
on and ensure mode knob (C) is
in the summer or winter position
Is water coming out of the hot
water tap when turned on?
YES
See boiler “Fault Codes”
section. If ‘0’ is displayed then
contact Ideal Customer Services
Helpline if your appliance is
under warranty or a Gas Safe
Registered Engineer, in IE a
Registered Gas Installer (RGII),
if out of warranty
NO
NO CENTRAL HEATING
Check the mains power is turned
on and ensure mode knob (C) is
in the winter position
Check the programmer (internal
or external to the boiler) is in
an “ON” position and the room
thermostat is turned up
Does the boiler operate and
provide central heating?
YES
Check the time settings on the
programmer are as you require
and adjust if necessary
NO
NO HOT WATER OR
CENTRAL HEATING
Check the mains power is turned
on and ensure mode knob (C) is
in the winter position
Does the boiler have a display
showing on the front control
panel?
YES
See boiler “Operation Modes”
and “Fault Codes” section
Contact a Gas Safe Registered
Engineer or in IE a Registered
Gas Installer (RGII)
NO
Contact a Gas Safe Registered
Engineer or in IE a Registered
Gas Installer (RGII)
See boiler “Operation Modes”
and “Fault Codes” section. If “0”
is displayed then contact a Gas
Safe Registered Engineer or in
IE a Registered Gas Installer
(RGII)
6
User’s
7. NORMAL OPERATION DISPLAY CODES
DISPLAY CODE ON BOILER
00
o
54
54
54
54
C
o
C
o
C
o
C
FP
DESCRIPTION
The boiler is in standby operation awaiting either a central heating call or hot water demand.
The boiler has a call for central heating but the appliance has reached the desired
temperature set on the boiler.
The boiler has a call for hot water but the appliance has reached the desired temperature set on
the boiler.
The boiler is operating in central heating mode.
The boiler is operating in domestic hot water mode.
The boiler is operating in frost protection.
- -
The boiler mode knob (C) is in the off position, rotate fully clockwise for hot water and central
heating operation.
FOR ANY QUERIES PLEASE RING THE
IDEAL CONSUMER HELPLINE : 01482 498660
NOTE. BOILER RESTART PROCEDURE -
To restart the boiler press the RESTART button. The boiler will repeat the ignition sequence if a heat demand
is present.
User’s
7
8. FAULT CODES
DISPLAY CODE ON BOILER
F 1
F 2
F 3
F 4 L 4
F 5
L 5
F 6
DESCRIPTION
Low Water Pressure
Flame Loss
Fan Fault
Flow Thermistor
Return Thermistor
Outside Sensor Failure
ACTION
Check system water pressure is between 1 & 1.5bar on the system pressure
re-pressurise the system see Section 3. If the boiler still fails to operate then please contact
Ideal (if under
warranty period. In IE contact a Registered Gas Installer (RGII).
1. Check other gas appliances in the house are working to conrm a supply is present in
the property.
2
. If other appliances do not work or there are no other appliances, check the gas supply
is on at the meter and/or pre payment meter has credit. If the boiler fails to operate then
please contact Ideal (if under warranty) or alternatively a Gas Safe Registered Engineer
if outside of the warranty period. In IE contact a Registered Gas Installer (RGII).
Restart the appliance - if the boiler fails to operate then please contact Ideal (if under
warranty) or alternatively a Gas Safe Registered Engineer if outside of the warranty
period. In IE contact a Registered Gas Installer (RGII).
Restart the appliance - if the boiler fails to operate then please contact Ideal (if under
warranty) or alternatively a Gas Safe Registered Engineer if outside of the warranty
period. In IE contact a Registered Gas Installer (RGII).
Restart the appliance - if the boiler fails to operate then please contact Ideal (if under
warranty) or alternatively a Gas Safe Registered Engineer if outside of the warranty
period. In IE contact a Registered Gas Installer (RGII).
Restart the appliance - if the boiler fails to operate then please contact Ideal (if under
warranty) or alternatively a Gas Safe Registered Engineer if outside of the warranty
period. In IE contact a Registered Gas Installer (RGII).
warranty) or alternatively a Gas Safe Registered Engineer if outside of the
gauge. To
F 7
F 9
L 1
L 2
L 6
L C
F A
L 9
Low Mains Voltage
Uncongured PCB
Flow Temperature Overheat
or No Water Flow
Ignition Lockout
False Flame Lockout
5 Boiler Resets in 15 minutes
Negative Differential
Flow/Return Thermistor
Contact a qualied electrician or your electricity provider.
Uncongured PCB. Please contact Ideal (if under warranty) or alternatively a Gas Safe
Registered Engineer if outside of the warranty period. In IE contact a Registered Gas
Installer (RGII).
Check system water pressure is between 1 & 1.5bar on the system pressure
To re-pressurise the system see Section 3. If the boiler fails to operate then please contact
Ideal (if under
warranty period. In IE contact a Registered Gas Installer (RGII).
1. Check condensate pipe for blockages (refer to Section 4).
2. Check other gas appliances in the house are working to conrm a supply is present in
the property.
3. If other appliances do not work or there are no other appliances, check the gas supply
is on at the meter and/or pre payment meter has credit. If the boiler fails to operate then
please contact Ideal (if under warranty) or alternatively a Gas Safe Registered Engineer
if outside of the warranty period. In IE contact a Registered Gas Installer (RGII).
Restart the appliance - if the boiler fails to operate then please contact Ideal (if under
warranty) or alternatively a Gas Safe Registered Engineer if outside of the warranty
period. In IE contact a Registered Gas Installer (RGII).
1. Turn electrical supply to boiler off and on.
2. If the boiler fails to operate please contact Ideal (if under warranty) or alternatively
a Gas Safe Registered Engineer if outside of the warranty period. In IE contact a
Registered Gas Installer (RGII).
If the boiler fails to operate then please contact Ideal (if under warranty) or alternatively
a Gas Safe Registered Engineer if outside of the warranty period. In IE contact a
Registered Gas Installer (RGII).
warranty) or alternatively a Gas Safe Registered Engineer if outside of the
gauge.
F U
U
Flow/Return Differential >
50°C
Diverter Valve in mid-position
for service
If the boiler fails to operate then please contact Ideal (if under warranty) or alternatively
a Gas Safe Registered Engineer if outside of the warranty period. In IE contact a
Registered Gas Installer (RGII).
Rotate all knobs fully clockwise, turn boiler power off and on then press restart
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