broag SEAGOLD 1A HR, Руководство пользователя

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5
5. APPLICATION
5.1 L.P.H.W. system
5.1.1 Water temperature
Maximum water temperature is 110
°
C (high limit
thermostat).
Highest operating flow temperature is 95
°
C (control
thermostat).
Minimum return water temperature is 20
°
C at a flow rate
related to a
∆
t of 20
°
C (flow/return temperature).
5.1.2 Water pressure
Boiler sections pressure tested to 12 bar.
Maximum test pressure for the boiler block is 6 bar.
Minimum working pressure boiler is 0.8 bar at a maxi-
mum water temperature of 110
°
C or 0.3 bar at a maxi-
mum water temperature of 95
°
C.
Maximum working pressure boiler is 6 bar.
5.1.3 Water flow
The minimum water flow through the boiler is:
This minimum flow must be maintained for 5 minutes
after the burner stops firing to avoid high temperature
shut-down due to residuel heat gain. Due to the design
and manufacture of the boiler no specific minimum water
flow requirements exists other than for over-temperature
protection.
The maximum water flow through the boiler is:
5.1.4 Water treatment
Water treatment of all systems, but in particular open
vented systems used with the remeha Gas 3c ECO, is
considered necessary good practice in order to:
- avoid metallic corrosion within the system
- avoid sludge and scale information
- reduce to a minimum the risk of microbiological
contamination of the system
- minimise chemical action and changes which take
place over a period of time when system water is
untreated.
The boiler contains an aluminium heat exchanger and the
system will also contain a variety of metals. Ferrous
metals - cast iron and steel, and non-ferrous metals -
copper, brass and gunmetal, may be present, so it is
essential that treatment is suitable for all of them.
Suitable chemicals and the extent of treatment should be
discussed with specialist manufacturers prior to any work
commencing. The specification of new systems must be
carefully considered. The removal of debris, flux residue,
grease, metal, swarf etc. from new systems, and any
black magnetic iron oxide sludge and other corrosive
residue from old systems is essential.
For information on water treatment we advise direct
contact with either:
Fernox Manufacturing Company Ltd.
Britannia Works
Clavering
Essex, CB1L 4QZ
Tel No: 0179 9550811
or: Sentinal
Grace Dearborne Ltd
Foundry Lane
Widnes
Cheshire WA8 8UD
Tel No: 0151 4951861
5.2 Noise level
The noise level taken at a distance of 3 m around the
boiler depending on boiler room construction is about
64 dBA.
5.3 Chimney/Flues
5.3.1 General
Consideration of flues for condensing appliances can
conveniently be split between a flue dilution system and
other types of flue.
Please contact our technical department for advice.
5.3.2 Fan
At I.D. Fan is supplied with each boiler, this has been
designed to overcome the added resistance through the
heat exchanger and exhaust the combustion gasses
through the relatively cold flues.
5.3.3 Safety equipment
An air pressure switch checks the correct functioning of
the flue fan.
Output boiler in kW
81
= ... m
3
/h
Output in kW
9.3
= ... m
3
/h