Glow-worm Flexicom hx - Manual (Page 6)

0020107230_04 - 12/14 - Glow-worm
INTRODUCTION
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Boiler Design
Boiler Design
These boilers are designed to provide central heating from a
fully pumped open vented or sealed water system and domestic
hot water using a fully indirect cylinder.
Once the controls are set the boiler operates automatically.
Range Rating
The boilers are fully modulating for central heating, and it is
therefore not necessary to range rate the boiler. However, if
desired, it is possible to range rate the boiler between 10 and
Max. output (according to the model), in 1kW increments, refer
to section 11.
Electrical Supply Failure
The boiler will not work without an electrical supply.
Normal operation of the boiler should resume when the
electrical supply is restored.
Reset any external controls, to resume normal operation of the
central heating.
If the boiler does not resume normal operation press the reset
button. If the boiler does not resume normal operation after this
call your Installation/Servicing company or Glow-worm service.
Overheating Safety
The boiler software is designed to recognise the potential for
an overheat lockout and will shutdown before this happens. To
restart the boiler, press the reset button on the controls fascia.
If the boiler fails to resume normal operation and all external
controls are calling for heat, then call your Installation/Servicing
company or Glow-worm service.
Safety Devices
Frost protection
The appliance has a built in frost protection device that protects
the boiler from freezing. With the gas and electric supplies
ON and irrespective of any room thermostat setting, the frost
protection device will operate the pump when the temperature
of the boiler water falls below 8
o C.
A timer is used so that the temperature can be checked
periodically. After 10 minutes the pump will be stopped if the
temperature is higher than 10
o C or has already reached 35 o C.
The burner will activate if the boiler temperature does not reach
10
o C after 30 minutes or at any time if the temperature drops to
5 o C.
The burner will switch off when the temperature reaches 35 o C.
Condensate Drain Blockage
As a safety feature the boiler will stop working if the condensate
drain becomes blocked. During freezing conditions this may be
due to the forming of ice in the condense drain external to the
house. Release an ice blockage by the use of warm cloths on
the pipe. The boiler should then restart.
Condensate Drain
A plastic drain pipe must be fi tted to allow discharge of
condensate to a drain.
Condensate should, if possible, be discharged into the internal
household draining system. If this is not practical, discharge
can be made externally into the household drainage system or
a purpose designed soak away, see section 8 for more details.
Pluming from fl ue terminal
Like all condensing boilers this appliance will produce a plume
of condensation from the fl ue terminal in cool weather. This is
due to the high effi ciency and hence low fl ue gas temperature of
the boiler. This is normal and not an indication of a fault.
Servicing, Maintenance and Spare Parts
Servicing and Maintenance
To ensure the continued effi cient and safe operation of the
boiler 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.
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 approved at the time by the Health and Safety
Executive in accordance with the rules in force in the countries
of destination.
To obtain service, please call your installer or Glow-worm’s own
service organisation using the telephone number on the inside
front cover of this literature.
After servicing, complete the relevant Service Interval Record
section of the Benchmark Checklist located on the inside back
pages of these instructions.
Spare Parts
Remember, when replacing a part on this appliance, use
only spare parts that you can be assured conform to the
safety and performance specifi cation that we require. Do not
use reconditioned or copy parts that have not been clearly
authorised by Glow-worm.
If a part is required contact Glow-worm’s own service
organisation using the telephone number on the inside front
cover of this
booklet.
Please quote the name of the appliance, this infomation will be
on the name badge on the front of the appliance.
If in doubt seek advice from the local gas company or Glow-
worm’s own service organisation using the telephone number
on the inside front cover of this booklet.