Operation Manual

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GB24 & GB30

User Manual

To Domestic Hot Water:To Central Heating:

GB24/30 Minimum 8.0 kW (27,296 Btu/h) GB24/30 Minimum 8.0 kW (27,296 Btu/h)

GB24 Maximum 24.2 kW (82,570 Btu/h) GB24/30 Maximum 24.2 kW (82,570 Btu/h)

GB30 Maximum 30.3 kW (103,384 Btu/h)

Morco House, Riverview Road, Beverley, East Yorkshire, HU17 0LD

Morco Products Ltd

Tel:+44 (0) 1482 325456 Fax: +44 (0) 1482 212869

Website:www.morcoproducts.co.uk

UIN 209783 A03

April 2014

BOILER OUTPUT

Summary of content (8 pages)

PAGE 1
GB24 & GB30 User Manual BOILER OUTPUT To Domestic Hot Water:To Central Heating: GB24/30 Minimum 8.0 kW (27,296 Btu/h) GB24 Maximum 24.2 kW (82,570 Btu/h) GB30 Maximum 30.3 kW (103,384 Btu/h) GB24/30 Minimum 8.0 kW (27,296 Btu/h) GB24/30 Maximum 24.2 kW (82,570 Btu/h) Morco House, Riverview Road, Beverley, East Yorkshire, HU17 0LD Morco Products Ltd Tel:+44 (0) 1482 325456 Fax: +44 (0) 1482 212869 Website:www.morcoproducts.co.
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Introduction The Morco GB is a wall mounted, room sealed, condensing combination boiler, featuring automatic spark ignition and fan assisted combustion. The Morco GB is a combination boiler providing both central heating and instantaneous domestic hot water (DHW) for taps and showers. Due to the high efficiency of the boiler, condensate is produced from the flue gases and this exits the boiler through a plastic waste pipe at the base of the boiler.
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 In cases of repeated or continuous shutdown a qualified and competent Gas Installer, should be called to investigate and rectify the condition causing this and carry out an operational test. Only the manufacturer’s parts are to be used for replacement Minimum Clearances around the Boiler Clearances of 165mm above, 100mm below, 2.5mm at the sides and 450mm at the front of the boiler casing must be allowed for servicing.
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During normal operation the “burner on” indicator (E) in the Boiler Controls diagram) will remain illuminated when the burner is lit. Note: If the boiler fails to light after five attempts the fault code “L-2” will be displayed. Refer to the fault finding section on page 8 of this user manual. Preheat Pre-heat is enabled if the pre-heat indicator (F) in the Boiler Controls diagram is visible.
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Mechanical Timer Control Indicator Timer Control Permanently ON Permanently OFF Time Indicator OFF segment ON segment 24hr Programme Ring Timer control segments 1 segment = 15mins OFF – Segments on inside of ring ON – Segments on outside of ring Operating Issues Frost protection If the home is to be left unoccupied during cold periods when there is a threat of freezing, the domestic hot and cold water circuits must be drained as follows:  Turn off the cold water supply  Open all hot and cold wa
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ALL FROST DAMAGE IS OUTSIDE OF THE WARRANTY. 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 codes. Flame Failure Should this occur a fault code will be displayed. Refer to fault codes. Loss of system water pressure The pressure gauge in the diagram below indicates the central heating system pressure. If the pressure is seen to fall below the original installation pressure of 1.
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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 identified 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.
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Fault Code Table Alternating Display Code on Boiler Auto reset Description Low mains voltage 5 boiler resets in a 5 minute period Low system pressure F 7 Yes L 5 N/A F 1 No L 1 No F 2 Yes Boiler overheat Flame loss during operation L 2 No Ignition failure L 2 No Ignition failure F 3 No F 4 Yes F 5 Yes Fan fault Flow thermistor issue Return thermistor issue Problem Solution Supply Voltage is too low Repeated problems with auto reset faults Contact electricity provider