Glow-worm Xtrafast 96-120 - Manual (Page 7)

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To ensure the continued efficient and safe operation of the
appliance it is recommended that it is checked and serviced as
necessary at regular intervals. The frequency of servicing will
depend upon the particular installation conditions and usage,
but in general once a year should be enough.
If this appliance is installed in a rented property there is a duty
of care imposed on the owner of the property by the current
issue of the Gas Safety (Installation and Use) Regulations,
Section 35.
Servicing/maintenance should be carried out by a competent
person in accordance with the rules in force in the countries of
destination.
To obtain service, please call your installer or Heatcall (Glow-
worm’s own service organisation) using the telephone number
behind the controls cover door.
Please be advised that the ‘Benchmark’ logbook should be
completed by the installation engineer on completion of
commissioning and servicing.
All CORGI Registered Installers carry a CORGI ID card, and
have a registration number. Both should be recorded in your
boiler Logbook. You can check your installer is CORGI registered
by calling CORGI direct on: 01256 372300.
Servicing and Maintenance
Cleaning
WARNING: This appliance contains metal parts (components)
and care should be taken when handling and cleaning with
particular regard to edges of sheet metal parts to avoid any
possiblity of personal injury.
The boiler casing can be cleaned using a mild liquid detergent
with a damp cloth, followed by a dry cloth to polish.
Do not use any form of abrasive or solvent cleaner as you
may damage the paint work.
Boiler casing
CAUTION. Do not remove or adjust the casing in any way, as
incorrect fitting may result in faulty operation. If in doubt, consult
your installation/service company.
1 Technical Data
Heating output ajustable from ... (kW) 10,4 11,7
to ... (kW) 27,6 34,6
from ... (BTU/H) 35,485 39,920
to ... (BTU/H) 94,170 118,053
Efficiency (%) ** **
Maximum heating temperature (°C) 87 87
Expansion vessel effective capacity (l) 7 12
Expansion vessel charge pressure (bar) 0,5 0,5
Maximum system capacity at 75°C (l) 160 275
Safety valve,
maximum service pressure (bar) 3 3
Products outlet diameter (mm) 60 60
Fresh air inlet diameter (mm) 100 100
XTRAF
AST 96
XTRAF
AST 120
Ø Burner injector (mm) 1,20 1,20
Inlet pressure (mbar) 20 20
Burner pressure (mbar) 13,8 14,1
Gas rate maximum (m 3 /h) 3,20 3,98
Gas rate minimum (m 3 /h) 1,32 1,48
Heating
Hot water output
automatically variable from ... (kW) 10,4 11,7
to ... (kW) 27,6 34,6
from ... (BTU/H) 35,485 39,920
to ... (BTU/H) 94,170 118,053
Maximum hot water temperature (°C) 60 60
Specific flow rate (for 30°C temp rise)
(l/min.) 13,2 16,5
Threshold flow rate (l/min.) 1 1
Nominal water flow rate (l/min.) 11,3 16,5
Maximum supply pressure (bar) 8 8
Minimum operating pressure (bar) 0,7 0,7
Hot water
Electrical supply (V) 230 230
Maximum absorbed power (W) 220 220
Level of protection IP44 IP44
Fuse rating 125mAT 125mAT
Natural Gas (G20) XTRAF
AST 96
XTRAF
AST 120
Lift weight 51.2kg (112.9lb) **.*kg (**.**lb)
Total weight
(inclusive water) **.*kg (**.**lb) **.*kg (**.**lb)
Xtrafast 96 Xtrafast 120
The Seasonal Efficiency Domestic Boilers UK (SEDBUK) is
**.*%.
The value is used in the UK Government's Standard
Assesssment Procedure (SAP) for energy rating of dwellings.
The test data from which it has been calculated have been
certified by B.S.I.