© Dimplex Boilers 2008
Dimplex 18 OV
Dimplex 32 OV
Open Vented Condensing Boilers
User’s Operating
Instructions
These instructions should be left with the user
5.0 ADDITIONAL INFORMATION
7
5.1 BOILER LOGBOOK
The logbook is included inside the Installation instructions. This
logbook should be completed by your installer to verify that
the correct installation and commissioning procedure was
followed.
Failure to complete the logbook may result in difficulties
should a problem arise with your appliance during the
guarantee period.
This logbook forms part of the industry’s Benchmark code of
practice for the installation, commissioning and servicing of
central heating systems.
All CORGI registered installers carry a CORGI identification card
and have a registration number. You can check your installer is
registered by telephoning 0870 4012300 or writing to:-
1 Elmwood
Chineham Business Park
Crockford Lane
Basingstoke
RG24 8WG
or check online at www.corgi-gas-safety.com
These appliances meet the requirements of;
Gas Appliance Directive 90/396/EEC
Efficiency of Hot Water Boilers Directive 92/42/EEC
Low Voltage Directive 92/42/EEC
Electromagnetic Compatibility Directive 92/31/EEC
Type test certified by:- Notified Body 0087 (Pin 87BT49).
Product/Production certified by:
Notified Body 0086.
For GB/IE only.
5.2 GENERAL CARE
The front panel should be cleaned with a damp cloth and mild
detergent. Do not use abrasive cleaners.
5.3 ROUTINE SERVICING
To ensure continued 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 adequate. It is law that any service work
must be carried out by a competent person such as British Gas
or other CORGI Registered personnel.
5.5 PLUMING FROM TERMINAL
5.4 EMERGENCY
WARNING - If a gas leak is suspected or exists, turn the gas
OFF at the incoming mains (adjacent to th
e meter), Do not
operate any electrical switches. Do not operate any
electrical appliances. Open all win
dows and doors. Do not
smoke. Extinguish all naked lights. Phone the Transco 24
hour emergency
number immediately on 0800 111 999
(Do not call from a mobile phone).
For short or long periods
OFF
NOTE:
5.6 TO TURN THE BOILER OFF
5.7 BOILER OVERHEAT PROTECTION
CONTENTS
SECTION DESCRIPTION PAGE
1.0 Using the Boiler 3
2.0 Problem Solving 4
3.0 Safety 5
4.0 Error Codes 6
5.0 Additional Information 7
Natural Gas
Dimplex 18 OV - Gas Council Appliance No:
41 149 04
Dimplex 32 OV - Gas Council Appliance No:
41 149 03
2
© Dimplex Boilers 2008
GAS COUNCIL NUMBERS
Control Panel
Fig. 1
Read these instructions carefully before trying to operate the appliance.
1.0 USING THE BOILER
© Dimplex Boilers 2008
3
1.1 CONTROL PANEL
1.2 CH - CENTRAL HEATING TEMPERATURE CONTROL
Control knob shown in the OFF position.
Turn the knob clockwise to increase the temperature of the
central heating.
1.4 CH - CENTRAL HEATING TEMPERATURE CONTROL
Adjustable via the CH temperature control knob to give radiator
temperatures of between 30°C and 80°C.
During periods of no central heating requirement, the control
should be set to the STANDBY position but the permanent live
to the boiler should be left on.
1.3 TO LIGHT THE BOILER
1. Switch on the electrical supply.
2. Turn the CH temperature Control knob to the midpoint
between the minimum and maximum setting. The display
changes from ‘O’ to ‘h’.
3. Ensure Programmer and room thermostat (if fitted) are
calling for heat.
4. The display changes to ‘H’. When the boiler has lit a small
dot will also appear in the bottom right corner of the display.
5. If the burner fails to light the fan will stop. Initially this may
be due to air in the gas supply. The boiler will automatically
have five attempts at ignition.
6. After the five attempts it may be necessary to RESET the
boiler by turning the control knob to the RESET/STANDBY
position and back to ‘ON’ within TWO seconds (then repeat
step 2).
Min
Max
Central Heating
Temperature Control
7 segments
LED display
Fig. 2
Fig. 3
Fig. 4
Min
Max
Fig. 5
Digital Display
Burner On Light
3.0 SAFETY
3.1 GENERAL SAFETY
DO NOT interfere with any sealed components and use the
appliance only in accordance
with these instructions.
This ap
children) with reduced physical, sensory or mental capabilities,
or lack experience and knowledge, unless they have been given
supervision or instructions concerning use of the appliance by
a person responsible for their safety. Children should be
supervised to ensure that they do not play with the appliance.
5
It is the law that all gas appliances are installed by a competant
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. If the appliance is damaged, turn off the
appliance and consult a CORGI registered installer. 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 competant
person.
3.2 CURRENT GAS SAFETY (INSTALLATION & USE) REGULATIONS
This appliance must be earthed.
Supply: 230V - 50Hz fused at 3A.
The method of connection to the mains supply must facilitate
complete isolation of the appliance. Either a 3A fused three pin
plug and unswitched shuttered socket outlet, or a 3A fused
double pole switch having a 3mm contact separation in both
poles, serving only the boiler (and its external controls), may
be used.
3.3 ELECTRICAL SUPPLY
3.4 CLEARANCES AND VENTILATION
Fig. 11
1. A flat vertical area is required for the installation of the
boiler.
2. Where an open flued (B23) system is used then an air vent
must be provided in the same room or internal space of the
flue duct air inlet, with a minimum free area of:
3. These dimensions include the necessary clearance around
the boiler for case removal, spanner access and air movement.
Additional clearances may be required for the passage of pipes
around local obstructions such as joists running parallel to the
front face of the boiler.
4. When installed in a cupboard or compartment it is not
permissible to store other objects in the cupboard. Additionally
no flammable objects/items must be allowed to come into
contact with the boiler.
5. The boiler does not require additional ventilation when it is
installed in a cupboard or compartment. The exception to this
is where an open flue system has been installed - See note 2.
2.0 PROBLEM SOLVING
2.1 STEP BY STEP GUIDE
4
© Dimplex Boilers 2008
Boiler Not Working
Check that the gas
supply is turned on.
Are other gas appliances
working ?
Is the central heating
indicator light on ?
Is the CH
temperature control knob ON ?
Is the timer on and
calling for heat ?
Is the room thermostat
set high enough ?
Reset the boiler - see Section 5.7.
If the boiler does not reset, contact
your installer or service engineer
Yes
No
No
No
No
No
Yes
Yes
Yes
Consult gas supplier
Turn the knob clockwise
Ensure the timer is set for central heating
on (see your timerinstructions)
Turn the room thermostat to maximum
3.0 SAFETY
3.1 GENERAL SAFETY
DO NOT interfere with any sealed components and use the
appliance only in accordance
with these instructions.
This ap
pliance is not intended for use by persons (including
children) with reduced physical, sensory or mental capabilities,
or lack experience and knowledge, unless they have been given
supervision or instructions concerning use of the appliance by
a person responsible for their safety. Children should be
supervised to ensure that they do not play with the appliance.
© Dimplex Boilers 2008
5
It is the law that all gas appliances are installed by a competant
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. If the appliance is damaged, turn off the
appliance and consult a CORGI registered installer. 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 competant
person.
3.2 CURRENT GAS SAFETY (INSTALLATION & USE) REGULATIONS
This appliance must be earthed.
Supply: 230V - 50Hz fused at 3A.
The method of connection to the mains supply must facilitate
complete isolation of the appliance. Either a 3A fused three pin
plug and unswitched shuttered socket outlet, or a 3A fused
double pole switch having a 3mm contact separation in both
poles, serving only the boiler (and its external controls), may
be used.
3.3 ELECTRICAL SUPPLY
3.4 CLEARANCES AND VENTILATION
5mm Min
372mm
5mm Min
580mm
200mm
200mm
285mm Wall
450mm Min
For Servicing
Purposes
5mm Min
In Operation
2.5°
Fig. 11
1. A flat vertical area is required for the installation of the
boiler.
2. Where an open flued (B23) system is used then an air vent
must be provided in the same room or internal space of the
flue duct air inlet, with a minimum free area of:
Dimplex 18 = 60cm
2
Dimplex 32 = 125cm
2
3. These dimensions include the necessary clearance around
the boiler for case removal, spanner access and air movement.
Additional clearances may be required for the passage of pipes
around local obstructions such as joists running parallel to the
front face of the boiler.
4. When installed in a cupboard or compartment it is not
permissible to store other objects in the cupboard. Additionally
no flammable objects/items must be allowed to come into
contact with the boiler.
5. The boiler does not require additional ventilation when it is
installed in a cupboard or compartment. The exception to this
is where an open flue system has been installed - See note 2.
1.0 USING THE BOILER
3
1.1 CONTROL PANEL
1.2 CH - CENTRAL HEATING TEMPERATURE CONTROL
Control knob shown in the OFF position.
Turn the knob clockwise to increase the temperature of the
central heating.
1.4 CH - CENTRAL HEATING TEMPERATURE CONTROL
Adjustable via the CH temperature control knob to give radiator
temperatures of between 30°C and 80°C.
During periods of no central heating requirement, the control
should be set to the STANDBY position but the permanent live
to the boiler should be left on.
1.3 TO LIGHT THE BOILER
1. Switch on the electrical supply.
2. Turn the CH temperature Control knob to the midpoint
between the minimum and maximum setting. The display
changes from ‘O’ to ‘h’.
3. Ensure Programmer and room thermostat (if fitted) are
calling for heat.
4. The display changes to ‘H’. When the boiler has lit a small
dot will also appear in the bottom right corner of the display.
5. If the burner fails to light the fan will stop. Initially this may
be due to air in the gas supply. The boiler will automatically
have five attempts at ignition.
6. After the five attempts it may be necessary to RESET the
boiler by turning the control knob to the RESET/STANDBY
position and back to ‘ON’ within TWO seconds (then repeat
step 2).
Fig. 2
Fig. 3
Fig. 4
Fig. 5
4.0 ERROR CODES
6
© Dimplex Boilers 2008
AFTER ENSURING THAT ALL ACTIONS HAVE BEEN CARRIED OUT RESET THE BOILER (REFER TO SECTION 5.4) IF ANYY OF
THE BELOW FAULTS OCCUR DURING INSTALLATION PLEASE REFER TO THE ACTIONS, HOWEVER IF ANY OTHER E
R
RROR
CODE IS SHOWING PLEASE CONTACT THE INSTALLER OR TECHNICAL HELP LIN
EE:
: 01926 834834
ERROR CODE DESCRIPTION REASON ACTION RESET POSSIBLE
1
Overheated CH Water temperature •Check no air is in heat exchanger / CH system
appliance greater than 105°C •Check external pump operation Yes
•Check PCB / X1C connector
•Check flow thermistor
•Check wires to sensors not crossed
2 Different check faulty / Sensor temperature • Check water pressure
Flame for 15 seconds differential incorrect • Check external pump / CH system blockage Auto Restart When Fixed
• Check no air is in heat exchanger / CH system
• Check flow, and return sensors
3 No gas or Lockout flame Low gas pressure. • Check gas supply
signal / No flame, Loss of flame signal during • Check gas service cock
Lockout after 5 ignition operation • Check gas valve and lead
attempts • Check detection electrode / lead Yes
• Check PCB / X2A & X2B connectors
• Check spark generator /spark electrode
• Check mains earth lead continuity
4 Flue gas sensor / Flue gas temperature greater • Check flue sensor
No flame than 95°C • Check flue system
• Check no air is in heat exchanger / CH system Yes
• Check external pump
• Check PCB / PCB connectors
ERROR CODE DESCRIPTION REASON ACTION RESET POSSIBLE
5 Defective sensor or Defective flow, return or flue • Check wiring to sensors
thermal fuse blown sensor or heat exchanger • Check PCB / X6 & X8 connectors
reached maximum safe • Check flow, return and flue sensors
working temperature • CHECK THERMAL FUSE IS OPEN CIRCUIT.
IF SO REPLACE HEAT EXCHANGER (SEE 10.8)
6 Defective gas valve / 5 sec flame signal after burner • Check gas valve and lead
Flame continues after is switched off • Check PCB
demand ends
7
Def
ective fan / No flame Missing or Erroneous RPM • Check fan
signal • Check mains fan lead & connector
• Check low voltage fan lead & connector
• Check PCB / X3 connector Auto Restart When Fixed
A PCB error / No flame Internal error • Check PCB
b Activate BCC / No flame New BCC • Turn CH control knob to reset twice to activate
C Safety system failure / Failure of internal self • Check PCB
No flame checking system • Check BCC is initialised
E BCC error / No flame Incorrect / missing BCC • Reset or replace BCC
h No flame Faulty connector • Check PCB / X1A connector
0 Different check faulty / Water flow rate too low • Check water pressure
Flame for 15 seconds • Check external pump / CH system blockage
• Check no air is in heat exchanger / CH system
• Check wires to sensors not crossed
• Check flow, and return sensors
P Error in power supply / Low mains voltage • Check mains voltage
No flame • Check PCB connectors
No light indication Defective power supply • Check power supply
• Check PCB / X1B connector
• Check PCB fuse
RESET LOCK-OUT CODES
BLOCKING CODES
5.0 ADDITIONAL INFORMATION
© Dimplex Boilers 2008
7
5.1 BOILER LOGBOOK
The logbook is included inside the Installation instructions. This
logbook should be completed by your installer to verify that
the correct installation and commissioning procedure was
followed.
Failure to complete the logbook may result in difficulties
should a problem arise with your appliance during the
guarantee period.
This logbook forms part of the industry’s Benchmark code of
practice for the installation, commissioning and servicing of
central heating systems.
All CORGI registered installers carry a CORGI identification card
and have a registration number. You can check your installer is
registered by telephoning 0870 4012300 or writing to:-
1 Elmwood
Chineham Business Park
Crockford Lane
Basingstoke
RG24 8WG
or check online at www.corgi-gas-safety.com
These appliances meet the requirements of;
Gas Appliance Directive 90/396/EEC
Efficiency of Hot Water Boilers Directive 92/42/EEC
Low Voltage Directive 92/42/EEC
Electromagnetic Compatibility Directive 92/31/EEC
Type test certified by:- Notified Body 0087 (Pin 87BT49).
Product/Production certified by:
Notified Body 0086.
For GB/IE only.
5.2 GENERAL CARE
The front panel should be cleaned with a damp cloth and mild
detergent. Do not use abrasive cleaners.
5.3 ROUTINE SERVICING
To ensure continued 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 adequate. It is law that any service work
must be carried out by a competent person such as British Gas
or other CORGI Registered personnel.
5.5 PLUMING FROM TERMINAL
Like all condensing boilers this appliance will produce a plume
of condensation from the flue terminal. This is due to the high
efficiency and hence low flue gas temperature of the boiler. It
is normal and not a fault indication.
The boiler is fitted with a condensate trap.
The condensate drain point must not be modified or blocked
(see section 7.6 of the installation manual).
5.4 EMERGENCY
WARNING - If a gas leak is suspected or exists, turn the gas
OFF at the incoming mains (adjacent to th
e meter), Do not
operate any electrical switches. Do not operate any
electrical appliances. Open all win
dows and doors. Do not
smoke. Extinguish all naked lights. Phone the Transco 24
hour emergency
n
number immediately on 0800 111 999
(Do not call from a mobile phone).
For short or long periods
Switch the programmer and/or room thermostat switch to the
OFF
position.
NOTE:
The ap
pliance is fitted with a frost protection device In
the event of very cold conditions. Providing there is mains
power supply to the appliance, the frost protection mode is
integral. If the system temperature falls below 5°C then the
boiler will fire on its minimum setting until a flow temperature
of 30°C is reached. Further protection can be incorporated by
using a system frost thermostat.
The pump will automatically operate for 1 minute in every 24
hours to prevent sticking.
5.6 TO TURN THE BOILER OFF
In the event of overheating, the boiler will shut down and the
digital display will show ‘1’. Allow the boiler to cool, then
briefly turn the CH control knob fully anti-clockwise to the
RESET/STANDBY position and then back to ‘ON’ within two
seconds.
If the fault persists, consult a CORGI Registered installer.
5.7 BOILER OVERHEAT PROTECTION
Dimplex 18 OV
Dimplex 32 OV
Open Vented Condensing Boilers
Part No: 751288 - Issue 3 - 07/07/10
© Dimplex Boilers 2008
Glen Dimplex Boilers is continually improving its products and therefore
reserve the right to change product specifications without prior notice.
Errors & omissions excepted.
Glen Dimplex Boilers
Stoney Lane
Prescot
Merseyside. L35 2XW
For all telephone enquiries call:
0844 371 2222
website:
www.glendimplexboilers.com
Part of the Glen Dimplex Group
SALES AND SERVICE HELPLINE: 0844 371 1111
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