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return thermostat also ensures that
priority is given to the domestic hot
water. These thermostats are
available from ourselves if you are
unable to obtain them locally.

THERMOSTAT

Before lighting the fire check the
cold setting distance of the
thermostat.

With the control knob at the
minimum setting the flap should be 5
mm from the air inlet as shown in
Fig. 10.

To adjust the distance slacken the
locking nut and adjust as necessary.
When set correctly re-tighten the
locking nut. Ensure that the flap
opens and closes freely as the knob is
turned.

PRE LIGHTING

CHECK

Before initial lighting check the
following points:

1. The bottom grate bars must all be
fitted and should move freely and
easily when the riddling mechanism
is operated.

2. The plates round the sides and
back of the grate must be in position
and sitting correctly. The location of
the side fire plates, the back fire plate
and the ash shedding plates are
shown in Fig. 11.

3. The throat plate must be fitted in
the roof of the appliance - see Fig. 1.

4. Ensure that the overrun catch
swings freely and easily on its spindle
preventing the firedoors from closing
until the ashpit door has been shut.

Page 9

CW40B 3/95

Summary of Contents for CW40B

Page 1: ...Operating and Installation Instructions Charnwood CW40B Multifuel Roomheater With Boiler Bishops Way Newport Isle of Wight PO3O 5WS U K Tel 01983 537799 Fax 01983 537788 ...

Page 2: ... Burning 5 Throat Plate Flueway Cleaning 5 Special Points When Burning Coal 5 Cleaning Maintenance 5 Chimney Sweeping 6 Trouble Shooting 6 Installation Instructions Health Safety Precautions 7 Performance 7 Chimney 7 Hearth 7 Connections To Flues 8 Soot Doors 8 Central Heating System 8 System Controls 8 Thermostat 9 Pre Lighting Check 9 Commissioning 10 Overall Dimensions 10 Exploded Parts Drawing...

Page 3: ...for use in smoke control areas Coal Housecoal doubles trebles or cobbles may all be burnt Do not use singles small nuts or coal dust It is important that large size coal is used ie larger than 2 or 50 mm in size The coal should be dry When burning bituminous coal a little extra care is needed Please take note of the section Special Points When Burning Coal on page 5 Wood Only dry well seasoned woo...

Page 4: ...d and do not leave the fire unattended with the doors open SYSTEM CONTROLS The heating system controls may consist of time switches room thermostats outdoor temperature thermostats and thermostatic radiator valves in virtually any combination These will work in conjunction with the thermostat control on the appliance The thermostat on the appliance will simply control the temperature of the water ...

Page 5: ...ed It is not necessary to let the fire out completely to do this The throat plate should be lowered using the tool The method of doing this is shown in Fig 1 Any sooty deposits should then be swept from the plate and into the fire Using the tool provided the two boiler tubes should be cleaned as shown in Fig 2 More soot will be deposited on the throat plate and in the flueways if the appliance is ...

Page 6: ...o sweeping should be consulted TROUBLE SHOOTING Fire Will Not Burn Check that a the air inlet is not obstructed in any way b chimneys and flueways are clear c a suitable fuel is being used d there is an adequate air supply into the room e an extractor fan is not fitted in the same room as the fire Fire Blazing Out Of Control Check that a the doors are tightly closed b the thermostat knob is turned...

Page 7: ...red vertically from the outlet of the fire to the top of the chimney The chimney should preferably be 175 mm 7 inches or 200mm 8 inches internal diameter or square with sides of 175mm or 200mm internally and MUST NOT BE LESS THAN 150mm 6 INCHES INTERNAL DIAMETER OR 150 x 150mm INTERNAL SQUARE If an existing chimney is to be used it must be swept and checked it must be in good condition free from c...

Page 8: ...e must be incorporated into the system as shown in Fig 9 This will ensure that a good domestic hot water supply is maintained when the central heating pump is operating The system must incorporate a gravity circuit which will normally heat the domestic hot water and at least one unvalved radiator When the appliance is not connected to a domestic hot water system the unvalved radiator s on the grav...

Page 9: ...re that the flap opens and closes freely as the knob is turned PRE LIGHTING CHECK Before initial lighting check the following points 1 The bottom grate bars must all be fitted and should move freely and easily when the riddling mechanism is operated 2 The plates round the sides and back of the grate must be in position and sitting correctly The location of the side fire plates the back fire plate ...

Page 10: ...itted safely Also check all joints and seals The central heating pump should be adjusted to give the correct water flow against the circuit resistance and the system should be correctly balanced On completion of the installation and commissioning please leave the operating instructions with the customer and advise on the use of the appliance and any controls on the system Charnwood CW40B Overall D...

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