Thermsaver unvented water heater, Руководство по установке

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WIRING
All electrical wiring should be carried out by a registered electrical
contractor and must conform to the latest IEE wiring regulations
Do not switch the power on until the unit has been filled with
water and all wiring has been earthed, see Fig. 4 and 5.
FITTING IMMERSION HEATERS
These are supplied as standard
An ’O’ ring is supplied as the seal and must be fitted against the
flange of the element. Take care not to cross thread and DO NOT
USE any other type of seal.
Fig.5
L
N
E
As our heating element is Incoloy 825 and is fitted with a cut-out
and thermostat for safety, a non-standard 1
3/4
" boss is fitted to the
unit. Replacements can only be obtained from your authorised
dealer.
All our heating elements have a built in manual reset cut-out. This
will operate if the immersion heater thermostat fails.
WARNING
: Ensure that the immersion heater thermostat is set
at 60 degrees Celsius.
FITTING THE THERMAL CUT-OUT &
PRIMARY CONNECTIONS
The motorised valve supplied and the thermal cut-out (Hi limit
stat) must be fitted to the primary flow. Use compression
fittings only.
Operation of the cut-out and motorised valve
To comply with BBA regulations and to prevent the temperature
reaching 100 degrees Celsius the thermal cut-out supplied must be
fitted.
The thermal cut-out is wired in series to the cylinder thermostat.
When the thermal cut-out senses an abnormal rise in
temperature in the primary flow the electrical supply to the
motorised valve will be cut, and the valve will be in the closed
position thus cutting of the primary water from the boiler to the
indirect coil in the cylinder. If this occurs it must be reset
manually. If the thermal cut-out operates check the cylinder stat
and / or boiler stat.
2 PORT VALVE + 3 PORT MID POSITION
VALVE (Y-PLAN) SYSTEM
GUIDANCE LAYOUT ONLY