Heatline capriz 25, Инструкция по установке, обслуживанию и эксплуатации

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will cause the heater to lock out at as the water
flow is reduced.
•
If you are able to obtain hot water but not heating it
is also advisable to check that the room thermostat
and any external time clock that may be fitted are
calling for heat.
•
Remember that after hot water draw off there is a
45 sec delay before the heating will fire up if No.3
dipswitch is in the OFF position, see figure 21
•
When commissioning the boiler check the inlet
pressure is at 20mbar and burner pressure against
the Technical data, section 2.
•
Note an anti-cycle delay time can be set up to a
maximum of 255 seconds by adjusting
potentiometer 2 as described in section 15.5
•
NOTE – FOR INSTALLERS:
REMEMBER IT IS A REQUIREMENT TO COMPLETE
THE BENCHMARK CODE OF PRACTICE LOGBOOK
BEFORE LEAVING THE INSTALLATION.
5.2 The boiler is designed to operate on fully pumped,
pressurised sealed systems operating at a maximum
of 3bar pressure and maximum design flow
temperature of 85
0
C.
5.3 The boiler’s integral expansion vessel is pre-
charged to a pressure of 0.5bar and will accommodate
a system volume of 125 litres. at an average water
temperature of 75°C and ma ximum system pressure
of 3 bar. If the system volume is more than 125 litres.
an additional expansion vessel must be fitted to suit
the size of the system. A typical installation of an
additional pressure vessel is shown in figure 3
5.4 The heating circuit should be designed and
balanced to give a 20
0
C temperature rise across the
boiler flow and return.
5.5 When fitting a new boiler to an existing system the
system must be thoroughly flushed in accordance with
the recommendations of BS7593 prior to installation.
5.6 It is recommended that the system should be
protected by an anticorrosion inhibitor. Failure to
comply with this requirement may invalidate your
guarantee.
5.7 On installation it is important to ensure that the heat
exchanger is not a natural collecting point for air and
where possible, the system pipe work should have a
gradient to ensure any excess air is carried naturally to
other purpose made, air release points.
5.8 In high water volume systems or under floor heating
systems 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 combustion chamber.
Failure to comply with this requirement will invalidate
the manufacturer’s guarantee.
5.9 The pressure relief discharge must be directed away
from any electrical equipment or where it could cause a
hazardous situation.
5.10 To enable adequate drainage of the system drain
cocks compliant with BS2879 must be fitted at the
lowest points in the system pipe-work.
5.11 To obtain the best hot water performance from your
boiler it is suggested that the cold water supply to the
boiler is the first draw off from the incoming mains
supply. Note that the boiler will not operate unless
there is a minimum pressure of 0.25bar with a flow rate
of 2.5l/min. Where inlet pressures exceed 8bar, a
pressure regulator must be fitted to the cold water
supply.
5.12 Where cold water mains are fitted with a water
meter, check valve(s) or loose jumper stopcock, a
domestic hot water mini-expansion vessel may need to
be fitted.
5.13 Although the boiler is designed to inhibit the
formation of scale, in hard water areas above 200mg/l, a
proprietary scale reduced should be fitted in the cold
water supply to the boiler. Failure to comply may
invalidate your guarantee. The local water undertaking
will advise on water hardness.
5.14 To obtain the best hot water performance from your
boiler it is suggested that supplies to outlets are run in
15mm copper, as short as possible and where practical,
be insulated to reduce heat loss.
5.15 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.
Page 9
If you experience any problems please refer to the
installation and commissioning guidelines within the
boiler instruction manual. If necessary, please contact
Heatline
TM
Service Enquiries, in the UK, for further
advice and assistance on 0870 777 8318
09