C&M MX2 24 Nat Installation And Operating Instructions Manual Download Page 1

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COMBINATION BOILER

Heating and Instantaneous Domestic Hot Water

Fanned Flue system

Installation and Operating instructions

Manufactures N°

Model Type

Gas Council N°

200906827037.31

MX2 24 Nat

47 - 980 - 28

200906828037.31

MX2 30 Nat

47 - 980 - 29

Summary of Contents for MX2 24 Nat

Page 1: ...stallation and Operating instructions Manufactures N Model Type Gas Council N 200906827037 31 MX2 24 Nat 47 980 28 200906828037 31 MX2 30 Nat 47 980 29 GB U n i t 3 A T h o r n t o n R o a d I n d E s...

Page 2: ...ee registration card enclosed with the boiler without delay STATUTORY REQUIREMENTS The installation of this appliance must be carried out by a CORGI Registered person or other competent person and in...

Page 3: ...7 Flushing and Water Treatment 7 System Controls 7 5 CONNECTING GAS INTAKE AND EXHAUST DUCTS 8 6 INSTALLING THE BOILER 10 7 ELECTRICAL CONNECTIONS 11 8 OPERATING 12 Pressurising 12 Settings 12 Burner...

Page 4: ...mains pressure domestic hot water on demand It has electronic ignition and is suitable for all modern electrical control systems The boiler is designed for sealed systems only and a circulating pump...

Page 5: ...stor 12 Electrical box 13 Hot water flow sensor 14 Air pressure switch 15 Ignitor 16 Central heating pressure relief valve 17 Three way valve 18 Secondary heat exchanger 19 Pressure gauge 20 On off pu...

Page 6: ...xis The minimum cold filling pressure of the appliance is 1 bar recommended pressure between 1 2 and 1 7 bar The pressure of the expansion vessel should always be greater than the static height in met...

Page 7: ...res a 22 mm supply Ensure that the pipe size is adequate for demand including other gas appliances on the same supply Electrical Supply The appliance requires an earthed 230V 50 Hz supply and must be...

Page 8: ...strictor 60 100 88 5 Without restrictor Max length 24 kW L min 0 3 m L min 1 m 4 m L max 1 m L max 4 m 30 kW L min 0 3 m L min 1 m 4 m L max 1 m L max 4 m There is also the possibility of using an exh...

Page 9: ...accessory catalogues Warning If the selected exhaust gas duct is planned to be fitted with a membrane as indicated in the corresponding tables then the installation of the membrane is compulsory 5 3 L...

Page 10: ...ust be connected to a waste water pipe Fit an evacuation device according to the type of connection chosen referring to the installation handbook supplied with the kit Cleaning the appliance Once the...

Page 11: ...30 V and earth connection via the lead provided at J1 Important If the supply cord is damaged it must be replaced by the manufacturer or is service agent or similarly person in order to avoid a hazard...

Page 12: ...set to 30 seconds or 3 minutes HAT period during which restarting the burner is prohibited during a heating regulation phase A2 allows the heating pump to be run at high or low speed A3 to fix the he...

Page 13: ...s for a nominal gas distribution pressure to allow any adjustments to the water heater heating output according to the requirements of the appliance They cannot be used to calculate the precise regula...

Page 14: ...nels M operation 1 fit the top of the panel in place close the panel mounting clamps fig 15 screw in the two clamp locking bolts A Note it is essential to refit both locking bolts A 9 Fitting the casi...

Page 15: ...able nominal output table Adjusting the minimum output disconnect a valve power supply cable fig 18 put pressure on screw 4 by using a 5 wrench while holding net 3 fig 18 and adjust the pressure to th...

Page 16: ...mistor faulty open circuit Central heating oulet thermistor faulty short circuit Firing problem Wiring problem or fuse 1 25 A Fan on but does not activate air pressure switch Fan off but air pressure...

Page 17: ...aracteristics Flow rate controller assembly direction By pass valve assembly direction U n i t 3 A T h o r n t o n R o a d I n d E s t a t e O f f H o c k n e y R o a d B r a d f o r d B D 8 9 H Q 0 1...

Page 18: ...urner ON 25 Reset push button and red indicator locking light Connecting bracket Taps shown in Open position fig 17 31 Central heating flow isolating valve 32 Domestic Hot Water outlet 33 Gas service...

Page 19: ...wer is supplied turn button 21 to authorise water heating ignition if water is being drawn This button allows you to adjust the hot water temperature While hot water is being drawn LEDs 23 light up tw...

Page 20: ...anti sticking device When the boiler is switched on indicator light 20 lit the circulation pump operates for 1 minute after the water heater has been out of operation for more than 23 hours whatever t...

Page 21: ...bar Supply 230 volts mono 50 Hz Consumption 150 W Protection IP X4D Natural gas G20 Gas rate max 2 75 m3 h 3 44 m3 h Gas rate mini 1 27 m3 h 1 50 m3 h Nominal inlet pressure 20 mbar 20 mbar Burner inj...

Page 22: ...00 pm ON periods are set by sliding all tappets between the ON time and the OFF time to the outer edge of the dial The tappets remaining at the centre of the dial are the OFF periods 4 To select funct...

Page 23: ...ion Control gas water and electrical supply fuses Follow procedure in chapter 7 Set up the room thermostat Wait for a few minutes Press on reset button 25 fig 16 the red led turn off and the boiler at...

Page 24: ...ontained in this document Manufacturer Chaffoteaux Maury France Commercial subsidiary MTS GB Limited MTS Building Hughenden Avenue High Wycombe Bucks HP13 5FT Telephone 01494 755600 Fax 01494 459775 i...

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C&M MX2 24 Nat, Installation And Operating Instructions Manual

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