This document provides comprehensive installation, operating, and servicing instructions for the Lincat Wall Mounted Water Boiler models M3F, M5F, M7F, and M10F. It is crucial to read these instructions carefully, paying particular attention to all sections that carry warning symbols, caution symbols, and notices, to ensure they are understood at all times. This manual should be kept for future reference.
Function Description
The Lincat Wall Mounted Water Boiler is designed to provide a continuous supply of hot water. It is a wall-mounted appliance, intended for indoor use, and is suitable for environments where a consistent supply of hot water is required. The boiler automatically fills with water and heats it to a set temperature, displaying "READY" when the water is hot enough to be drawn off. It is designed to be left on permanently, only requiring to be turned off for descaling or maintenance. The appliance incorporates a filter system to improve water quality and has a display that provides information on its operational status and filter life.
Usage Features
Installation and Commissioning
- Qualified Installation: The appliance must be installed, commissioned, and serviced by a qualified person in accordance with national and local regulations.
- Earthing: The appliance must be earthed. If replacing the plug, connect terminals as follows: Green and Yellow wire to Earth (E), Blue wire to Neutral (N), and Brown wire to Live (L).
- Isolation: Means of isolation with at least 3mm contact separation in all poles must be incorporated into the fixed wiring.
- Wiring Protection: Fixed wiring insulation must be protected by insulated sleeving with a temperature rating of at least 60°C.
- Supply Cords: Supply cords must be oil-resistant, sheathed flexible cable not lighter than ordinary polychloroprene or equivalent elastomer sheathed cord (code 60245 IEC 57).
- Hose Sets: Do not re-use old hose sets; use only the hose set supplied with the appliance.
- Wall Mounting: The boiler must be installed on a vertical concrete/brick wall with its base in a horizontal position. The location must be frost-free.
- Mounting Procedure: Use the provided wall bracket to mark mounting hole positions. The top of the bracket should be 10mm below the height of the fitted unit lid. Drill holes and insert suitable wall plugs. Hang the unit, mark the lower fixing screw position, remove the boiler, drill, and insert a wall plug.
- Clearance: Allow 200mm clear space above the unit for cover removal and 300mm below for filter removal.
- Electrical Connection: The MF wall mount series are supplied with a 13 amp plug to BS1363. Ensure the plug/socket is accessible at all times.
- Water Installation: Connect the supplied white water inlet hose to the inlet connection point on the boiler's base and the other end to the mains supply via an accessible isolating tap with a ½" BSP thread.
- Condensate/Overflow: Connect the condensate/overflow pipe to a suitable drain, adhering to local water regulations. A Tundish is advisable for waste connection to the condensate overflow pipe.
- Water Quality: If solid particles are known to be in the water supply, an extra inline filter or strainer should be added.
- Leak Check: Turn on the water supply and check for leaks after installation.
First Use and Regular Operation
- Initial Setup: Strip plastic coating and clean the appliance before use.
- Filling and Heating: Switch on both mains water and electricity supplies. The boiler will fill completely and then begin heating. The unit will display "WAIT" during this process and "READY" when the set temperature is reached.
- Filter Priming: New filters may contain loose carbon particles. Drain off approximately 3 litres of water when first setting up or replacing the filter.
- Continuous Operation: The appliance is designed to be left on permanently to ensure a constant supply of hot water. Small quantities of water are added constantly during the heating cycle.
- Qualified Personnel: Only qualified or trained personnel should use this appliance.
Adjustments
- Temperature Adjustment: Turn power off at the mains for 5 seconds, then back on. When the "Filterflow" screen appears, press and hold the power button (B) until the software version is displayed. Press the Set button (C) to display the temperature. Use the power button to cycle through values from 70 to 96°C, then press the Set button to select the desired value.
- Backlight Adjustment: After temperature adjustment, the backlight adjustment screen is displayed. Use the power button to cycle through values 1 to 25, then press the Set button to select the desired value.
- Contrast Adjustment: Following backlight adjustment, the contrast adjustment screen appears. Use the power button to cycle through values 35 to 60, then press the Set button to select the desired value.
- Exit Adjustment: Press the power button to exit the adjustment menu.
Standby Mode
- Activating Standby: If the appliance will be unused for an extended period, turn the element off by pressing the power button.
Filter Replacement
- Filter Life Display: The display shows the estimated life remaining in the filter cartridge (Fig 3). A reminder message will appear when the filter needs changing.
- Replacement Procedure: Twist the base of the filter 90 degrees to the left and carefully lower the filter cartridge out. It will contain a small amount of water. Re-insert the new filter into the recess and lock it into place by twisting to the right.
- Reset Filter Life: Press and hold both the Set and Power buttons for 5 seconds to reset the filter life.
- Priming New Filter: Drain off approximately 3 litres of water to remove any loose carbon particles from the new filter.
- Safety Feature: The boiler will not fill if the filter is removed, as the filter head incorporates a shut-off valve.
- Genuine Filters: Use of genuine Lincat filters is recommended.
Maintenance Features
Cleaning
- General Cleaning: Do not use a water jet or steam cleaner, and do not immerse the appliance. Clean all panels with warm water and mild detergent, avoiding abrasive materials. Dry with a soft cloth.
- Dispensing Nozzle: Wipe the dispensing nozzle daily to remove limescale deposits.
Descaling
- Regular Descaling: The boiler should be descaled regularly to maintain efficient operation and water quality. The frequency depends on water hardness and timely filter replacement.
- Warranty Exclusion: Service calls resulting from limescale are not covered by warranty.
- Qualified Personnel: The descaling procedure must be performed by trained personnel as it requires the removal of panels, providing access to live electrical components.
- Recommended Agent: Lincat recommends their own descaling agent DP10, available from their Spares department.
- Descaling Procedure:
- Wear protective clothing.
- Isolate the boiler from the electrical supply.
- Turn off the power and allow the water to cool to 60°C.
- Remove the water boiler top cover.
- Remove the insulation from the top of the tank, then unscrew and remove the tank lid.
- Add the descaling agent slowly to avoid water eruption, following the manufacturer's instructions.
- Replace the tank lid and outer lid cover. Attach an "Out of Use" notice to prevent use during descaling.
- Turn on electricity and allow the boiler to run normally for 30 minutes.
- Isolate the boiler and allow the water to cool.
- Remove the boiler lid cover and tank lid and inspect the tank and level sensor housings for scale deposits. Repeat if necessary.
- In hard water areas, manual descaling may be required. Remove as much scale as possible by hand, focusing on level sensors and the element.
- Drain and flush all descaling agent from the tank completely using the drain valve (Fig 2 G).
- Overflow Risk: Failure to descale the unit may result in the boiler overfilling and leaking from the overflow.
Servicing, Maintenance, and Component Replacement
- Authorized Service: All servicing, maintenance, and component replacement should be carried out by Lincat's recommended service engineers.
- Fault Finding: The control panel displays information to aid fault diagnosis. Before calling for service, draw off a litre of water, clear the fault code by pressing the Set button, and turn the boiler off and on again at the supply. Refer to the Service Help Desk if the fault persists.
- "DESCALE" (CAUTION SEE MANUAL): Indicates scale on level sensors or boiler overfilling. Corrective action: Descale.
- "DESCALE" (CAUTION SEE MANUAL): Indicates leaking past the inlet solenoid valve. Corrective action: Check water inlet valve, clear fault code by pressing Set button.
- "NO WATER" (FAULT SEE MANUAL): Indicates water turned off, inlet hose kinked or blocked, water pressure too high or low, drain valve open, or filter blocked/not fitted. Corrective action: Check water supply and drain valve, clear fault code by pressing Set button. Call Lincat if fault persists.
- "NOT HEATING" (FAULT SEE MANUAL): Indicates boil dry/overheat protector tripped, temperature sensor fault, element failed, or PCB fault. Corrective action: Try overflow temp reset (Fig 2 E), clear fault code by pressing Set button. Call Lincat if fault persists.
- "THERMISTOR" (FAULT SEE MANUAL): Indicates temperature sensor fault or faulty/loose connection. Corrective action: Call Lincat.
- Contact: For help, contact Lincat's service department at UK: 01522 875520. Non-UK customers should contact their local Lincat dealer.
- Information for Service: When contacting service, provide brief details of the problem, product code, type number, and serial number (all available on the serial plate).
- Warranty Access: Lincat reserves the right to carry out warranty work with reasonable access to the appliance during normal working hours (Monday to Friday, 08:30 to 17:00).
- Guarantee: The unit carries a comprehensive UK mainland 2-year warranty, which is in addition to statutory rights.
- Guarantee Exclusions: The guarantee does not cover:
- Accidental damage, misuse, or use not in accordance with instructions.
- Scale-related issues.
- Consumable items (e.g., filters, glass, bulbs, slot toaster elements, door seals).
- Damage due to incorrect installation, modification, unauthorized service work, or abuse.
- Liability: The manufacturer disclaims liability for incidental or consequential damages.
- Technician Access: Attendance is based on reasonable access for the authorized technician to carry out warranty work.
- Administrative Time: Service calls under warranty include a maximum of 15 minutes of administrative time. Any additional time for administrative requirements (e.g., health and safety risk assessments) will be chargeable.
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