Benchmark i-mini 24, i-mini 30 User Manual

Page 1

USERS GUIDE

24, 30

For installation guide see reverse of book

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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i-mini - User’s

Minimum Clearances

Clearances of 165mm (6 1/2”) above, 100mm (4”) below,

2.5mm (1/8”) at the sides and 450mm (17 3/4”) 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 enable the consumer to view the system pressure gauge, and to provide the 100mm clearance required for servicing.

To light the boiler. Refer to Frame 1

1. CHECK THAT THE ELECTRICITY SUPPLY TO BOILER IS OFF.

2. Set the mains mode knob control (D) to ‘Off’.

3. Set the Domestic Hot Water temperature control (B) and

Central Heating temperature control (C) to ‘max’.

4. Set the preheat control (A) to ‘on’.

5. Ensure that all hot water taps are turned off.

6. Switch ON electricity to the boiler and check that all

controls, e.g. timer and room thermostat, are ON (refer to mechanical timer instructions - Page 4).

7. Set the mode knob control to winter (

The boiler will commence the ignition sequence, rst supplying heat to preheat the domestic hot water and then to the central heating, if required.

Note. In normal operation the boiler status display (E) will show codes:

Standby - no demand for heat.

CH being supplied.

DHW being supplied.

DHW preheat.

Boiler frost protection - boiler will re if temperature is

below 5 degrees C.

During normal operation the burner on indicator (F) will remain illuminated when the burner is lit.

Note: If the boiler fails to light after ve attempts the fault code

will be displayed.

RESET PROCEDURE

To reset boiler, turn the mode control knob (D) to reset position and immediately turn knob back to required setting. The boiler will repeat the ignition sequence. If the boiler still fails to light consult a Gas Safe Registered Engineer or in IE a Registered Gas Installer (RGII).

Introduction

The i-mini is a wall mounted, room sealed, condensing combination boiler, featuring full sequence automatic spark ignition and fan assisted combustion.

Due to the high efciency 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.

The i-mini is a combination boiler providing both central heating and instantaneous domestic hot water.

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 is not intended for use by persons (including

children) with reduced physical, sensory or mental capabilities, or lack of 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.

In cases of repeated or continuous shutdown a Gas Safe Registered Engineer or in IE a Registered Gas Installer (RGII) should be called to investigate and rectify the condition causing this and carry out an operational test. Only the manufacturers original parts should be used for replacement.

THE BENCHMARK SERVICE INTERVAL RECORD MUST BE COMPLETED AFTER EACH SERVICE

Ideal Heating, 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 efciency.

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.

FOR ANY QUERIES PLEASE RING THE

IDEAL CONSUMER HELPLINE : 08708498057

NOTE. BOILER RESET PROCEDURE To reset boiler, turn mode control knob to reset position and immediately turn knob back to required setting.

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3i-mini - User’s

Legend

A. Pre-heat On/Off

B. DHW Temperature Control

C. CH Temperature Control

1 BOILER CONTROLS

Operation

Winter conditions - i.e. CH and DHW required.

Ensure the mode knob control (D) is set to winter ( )

The boiler will re and supply heat to the radiators but will give priority to DHW on demand.

The DHW preheat will operate as described under ‘Summer conditions’ during periods when there is no call for CH.

Summer conditions - i.e. DHW only required.

Set the mode knob control to Summer ( ).

Set the CH external controls to OFF.

Preheat will operate with the preheat switch (A) set to ON.

The boiler will re periodically for a few seconds to maintain the DHW calorier in a preheated condition. The average time period between ring is 90 minutes. This may vary considerably due to the surrounding ambient temperature of the boiler. The boiler will re whenever there is a demand for DHW.

The boiler preheat facility can be immobilised by turning the preheat switch (A) to OFF. This will stop the boiler operating for short periods. This facility is primarily provided for boiler installations in a sensitive area (i.e. bedroom etc.)

Note. The pump will operate briey as a self-check once every 24 hours, regardless of system demand.

Control of water temperature

Domestic Hot Water

The DHW temperature is limited by the boiler controls to 64oC maximum at low draw-off rate, adjustable via the DHW temperature control (B).

Due to system variations and seasonal temperature uctuations DHW ow rates/temperature rise will vary, requiring adjustment at the draw off tap : the lower the 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 CH temperature control (C).

The i-mini is a high efciency combination boiler which is most efcient when operating in condensing mode.

The boiler will operate in this mode if the CH temperature control (C) is set to the ‘e’ position (economy mode). This control should be set to maximum for very cold periods

To shut down the boiler

Set the mode knob control to OFF

To relight the boiler

Repeat the procedure detailed in ‘To light the boiler’.

Frost protection

If no system frost protection is provided and frost is likely during a short absence from home, leave the heating controls (if tted) at a reduced temperature setting. For longer periods, the entire system should be drained.

If the system includes a frost thermostat then, during cold weather, the boiler should be turned OFF at the time switch (if tted) ONLY. The mains supply should be left switched ON, with the boiler thermostat left in the normal running position.

Boiler Overheat Protection

The boiler controls will shut down the boiler in the event of overheating. Should this occur, a fault code will be displayed.

Refer to fault chart.

Flame Failure

Should this occur a fault code will be displayed. Refer to fault chart.

A B E F C DJ

Approx. ow temperatures for the boiler thermostat settings are:

Knob Setting Flow Temperature

Minimum 40oC (104oF)

Maximum 64

C (147oF)

D. Mode Control

E. Boiler Status

F. Burner ‘on’ Indicator

G. Pressure Gauge

H. Condensate Drain

J. Economy Mode

continued . . . . . .

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i-mini - User’s

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 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 “L2” fault code. If the appliance is reset it will make a gurgling noise prior to it locking out on a failed ignition “L2” 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 identied 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.

4. Once the blockage is removed and the condensate can ow freely, reset 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 boiler stat to maximum, (Must return to original setting once cold spell is over)

Place the heating on continuous and turn the room stat down to 15ºC overnight or when unoccupied. (Return to normal after cold spell).

Escape of gas

Should a gas leak or fault be suspected contact the National Gas Emergency Service without delay. Telephone 0800 111

999

Do NOT search for gas leaks with a naked ame.

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).

Loss of system water pressure

The gauge (G) 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 then a water leak may be indicated. In this event the re-pressurise the boiler. 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.

3G9933

PRESSURE GAUGE

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5i-mini - User’s

YES

POINTS FOR THE BOILER USER

Note. In line with our current warranty policy we would ask that you check through the Troubleshooting guide to identify any problems

external to the boiler prior to requesting a service engineers 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.

NO HOT WATER

Check the mains switch (fused

spur) is turned on and ensure

switch mode control knob (D) is

in the summer or winter position

Is water coming out of the hot

water tap when turned on?

NO CENTRAL HEATING

Check the mains switch (fused

spur) is turned on and ensure

switch mode control knob (D) is

in the winter position

Does the boiler operate and

provide central heating?

Check the time settings on the

programmer are as you require

and adjust if necessary

Check the timer (internal or

external to the boiler) is in an

“ON” position and the room

thermostat is turned up

NO HOT WATER OR CENTRAL HEATING

Check the fused spur is turned

on and ensure switch mode

control knob (D) is in the winter

position

See boiler “Operation Modes”

and “Fault Codes” section

Does the boiler have a display

showing on the front control

panel?

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

YES

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)

Contact a Gas Safe Registered

Engineer or in IE a Registered

Gas Installer (RGII)

TROUBLESHOOTING

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i-mini - User’s

continued . . . . . .

DISPLAY CODE ON BOILER

DESCRIPTION

The boiler is in standby mode 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 pre heat mode.

The boiler is operating in hot water mode.

The boiler is operating in frost mode.

OPERATION MODES

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7i-mini - User’s

Outside Sensor Failure

Reset 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).

Low Mains Voltage

Contact a qualied electrician or your electricity provider.

Uncongured PCB

Uncongured 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).

No Water Flow Thermistor

5 Boiler Resets in 15 minutes

1. Turn power off and on at the fused spur.

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).

False Flame Lockout

BCC Activation Fault

DISPLAY CODE ON BOILER

DESCRIPTION

Low Water Pressure

ACTION

Check system pressure is between 1 & 1.5bar on the pressure gauge. 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).

Flame Loss

1. Check other gas appliances in the house are working to conrm 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).

Fan Fault

Flow Thermistor

Return Thermistor

FAULT CODES

Flow Temperature Overheat

No Water Flow

BCC Fault

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i-mini - User’s