Appliance Sitting - Heatline SARGON 18S Installation, Servicing And User Instructions Manual

5.9 In high water volume systems or under fl oor heating systems, see section 15.2, where
prolonged operation of the boiler is expected at temperatures below 60°C, a by-pass must be
installed on the boiler outlet in order to prevent condensation forming inside the boiler body.
Failure to comply with this requirement will invalidate the manufacturer's guarantee.
5.10 The pressure relief discharge must be directed away from any electrical equipment or
where it could cause a hazardous situation.
5.11 In order to drain the complete system effi ciently it is recommended that drain cocks
(compliant to BS2879) are fi tted at the lowest points in the system pipe-work.
5.12 Where cold water mains are fi tted with a water meter, check valve(s) or loose jumper
stopcock, you may need to fi t a domestic hot water mini-expansion vessel in order to avoid
water hammer.
5.13 To obtain the best hot water performance from your boiler it is suggested that supplies to
taps are run in 15mm copper, as short as possible and where practical, be insulated to reduce
heat loss.
5.14 The boiler incorporates a frost protection thermostat. Therefore if the boiler will not be
used for long periods of time during cold weather, in order to avoid freezing the electric supply
must be left ON and all the central heating isolation valves must be left open. The internal
frost thermostat will then operate the boiler if the temperature falls too low. However, if the
electrical supply is to be turned off the boiler, the heating system and domestic hot water
circuit must be drained.

6. Appliance Sitting

6.1 If the boiler is to be installed in any room or compartment, it does not require any
purpose made ventilation for combustion air. If sited in a room containing a bath or shower
then particular reference is drawn to the current I.E.E. Wiring Regulations, local Building
Regulations or any other local regulations currently in service.
6.2 The boiler is not suitable for external installation unless protected by a purpose made
building such as a boiler house.
6.3. The following clearances are recommended for installation purposes; 200mm above,
300mm below and 50mm at each side. 600mm is required at the front but this may be upon
opening a cupboard door.
6.4 Flammable fl uids and materials must be stored at least 1m away from the boiler.
6.5 The wall on which the boiler is mounted must be suffi ciently strong to support the weight
of the boiler.
6.6 A corrosion resistant or plastic condensate drain pipe must be fi tted to allow discharge of
condensate to a drain or soak away.
Where possible condensate should be discharged into the household internal drainage
system. If this is not practical, discharge can be made into an external drain. If neither of
the above options are possible then condensate must be discharged into a purpose designed
soak way.
NOTE: It is recommended that any external condensate pipe is insulated and increased to
32mm diameter in order to prevent the condensate from freezing.
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