10
INSTALLATION
isar -
Installation and Servicing
The boiler does not normally need a bypass but at least some
radiators on the heating circuit, of load of at least 10% of the
minimum boiler output, must be provided with twin lockshield
valves so that this minimum heating load is always available.
See note regarding thermostatic radiator valves on page 8.
Note.
Systems incorporating zone valves which could
completely cut off the flow through the system must also
include a bypass.
BALANCING
1. Set the programmer to ON.
Close the manual or thermostatic valves on all radiators,
5
SYSTEM BALANCING
leaving the twin lockshield valves (on the radiators
referred to above) in the OPEN position.
Turn up the room thermostat and adjust these
lockshield valves to give boiler flow and return
temperatures not more than 20
o
C apart.
These valves should now be left as set.
2. Open all manual or thermostatic radiator valves and
adjust the lockshield valves on the remaining radiators,
to give around 15
o
C temperature drop at each radiator.
3. Adjust the room thermostat and programmer to
NORMAL settings.
6
WATER TREATMENT
Central Heating
These boilers incorporate an ALUMINIUM heat exchanger.
IMPORTANT. The application of any other treatment to this product may render the guarantee of Caradon Ideal Limited
INVALID.
Caradon Ideal Limited recommend Water Treatment in accordance with the
Benchmark Guidance Notes on Water
Treatment in Central Heating Systems.
Caradon Ideal Limited recommend the use of Fernox Copal or MB1, GE Betz Sentinel X100 or Salamander Corrosion
Guard inhibitors and associated water treatment products, which must be used in accordance with the manufacturers
instructions.
Notes.
1. It is most important that the correct concentration of the water treatment products is maintained in accordance with the
manufacturers' instructions.
2. If the boiler is installed in an existing system any unsuitable additives MUST be removed by thorough cleansing.
BS7593:1992 details the steps necessary to clean a domestic heating system.
3. In hard water areas, treatment to prevent limescale may be necessary - however the use of artificially softened water is
NOT permitted.
4. Under no circumstances should the boiler be fired before the system has been thoroughly flushed.
Domestic Hot Water
In hard water areas where main water can exceed 200ppm Total Hardness (as defined by BS 7593:1993 Table 2) a scale
reducing device should be fitted into the water boiler cold supply within the requirements of the local water company. The
use of artificially softened water, however, is NOT permitted.
Caradon Ideal Limited recommend the use of Fernox Quantomat, GE Betz Sentinel Combiguard and Calmag CalPhos I
scale reducing devices, which must be used in accordance with the manufacturers instructions.
For further information contact:
Fernox Manufacturing Co. Ltd, Cookson Electronics, Forsyth Road, Sheerwater, Woking, Surrey. GU21 5RZ. Tel. +44 (0) 1799 521133
or
G E Betz Ltd, Sentinel Division, Foundry Lane, Widnes, Cheshire, WA8 8UD. Tel. +44 (0) 151 424 5351
or
Salamander Engineering Ltd, Unit 24, Reddicap Trading Estate, Sutton Coldfield, West Midlands B75 7BU. Tel. +44 (0) 121 378 0952
or
Calmag Ltd, Unit 4, Crown Works, Bradford Road, Sandbeds, Keighley, West Yorkshire, BD20 5LN. Tel. +44 (0) 1535 210 320
14.
Injector and housing.
15.
Venturi assembly.
16.
Fan assembly.
17.
Automatic air vent.
18.
Gas service cock.
19.
Gas control valve.
20.
Fan bracket.
21.
Orifice plate.
22.
Flue thermistor
23.
Control therm. (flow/return)
24.
Overheat thermostat.
25.
Ignition electrode.
1.
Front casing panel.
2.
Boiler sealing panel.
3.
Sump cover.
4.
Bottom casing panel.
5.
Flue sensing nipple.
6.
Return pipe.
8.
Flue manifold.
9.
Flue manifold fixing.
10.
Interpanel.
11.
Burner.
12.
Comb. chamber ins.
13.
Heat exchanger.
7
BOILER ASSEMBLY - Exploded View Legend
26.
Flame detection electrode.
32.
Condensate 'S' trap.
35.
User control.
36.
Primary controls (PCB).
39.
Mains switch.
44.
Piping frame.
51.
Mains connector.
53.
Turret gasket.
57.
CH stub pipe.
59.
Flow restrictor.
60.
DHW inlet/outlet pipe.
61.
Pressure relief valve.
62.
Expansion vessel.
63.
Expansion vessel pipe.
64.
Pressure gauge.
65.
DHW thermistor.
66.
Diverter valve head.
67.
Diverter valve.
68.
Diverter valve manifold.
69.
Pump.
70.
Pump manifold.
71.
DHW plate heat exchanger.
75.
Control box clamp.
Содержание isar m30100
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