7
3.5 Component check list
Components supplied with the unit in a separate
accessory kit for site fitting:
•
Multibloc valve, includes pressure reduc-
ing valve, line strainer, balanced cold water
take off,(for shower or bidet only) check
and expansion valve.
•
Tundish
•
3/4’’ x 22mm Elbow / Drain Cock
•
Motorized valve
•
Expansion vessel.
3.5.1 Components factory fitted
•
Immersion heater(s)
•
Thermostats / thermal cut-out
•
Temperature and pressure relief valve.
3.5.2 Documentation supplied
•
Installation manual & log book
3.6 Supply requirements
An uninterrupted 22mm cold water mains sup-
ply is recommended, a minimum standing pres-
sure of 2.5 bar and a flow rate of 20 litres per
minute with a 1 bar dynamic pressure is recom-
mended. The cylinder will operate at lower pres-
sures and flow rates however the performance
will be compromised. The OSO unvented unit
is designed for use with supply pressure up to
10 bar. For pressures over 10 bar an additional
pressure reducing valve must be fitted in the
supply pipe to the unit.
3.6.1 Expansion vessels
The vessel accommodates expanded water
when the cylinder is heated and prevents the
cylinder reaching its maximum working pres-
sure.
3.6.2 Compatible fittings and components
All thermostatically controlled boilers are com-
patible with indirect OSO cylinders.
3.6.3 Non-compatible products.
Solid fuel boilers, wood burning stoves and oth-
er non-thermostatically controlled heat sources
must not be used with unvented cylinders.
Содержание Delta Twincoil DTC 200
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