O Potterson CF 20/35, Инструкция по установке и обслуживанию

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Initial System Pressure (bar) 1.0 1.0
Expansion Vessel Volume
(litres) V X 0.11 V X 0.087
Cylinder
The hot water cylinder must be an indirect coil type or a direct cylinder fitted wi
th an immersion calorifier suitable for operating at a gauge pressure of 0.3 bar
(5
lbf/in²) inexcess of safety valve setting. Single feed indirect cylinders are n
ot suitable for sealed systems.
Method of Make-Up
Provision shall be made for replacing water loss from the system either:
i) from a make-
up vessel or tank mounted in a position higher than the top point of the system
, and connected through a non-
return valve either to the system on the returnside of hot water cylinder or the
return side of all heat emitters.
or
ii) where access to a make-
up vessel would be difficult, by using the mains top up method or a remote aut
omatic pressurisation and make up unit as illustrated in
FIG. 5 METHODS 1 an
d 2.
Mains Connection
There shall be no connection to the mains water supply or to the water storag
e tank which supplies domestic water even through a non-
return valve, without the approval ofthe local Water Authority.
Filling Point
The system shall be fitted with a filling point at low level which incorporates a
stop valve to BS. 1010 and a double check valve (approved by the National W
ater Council) tobe fitted in this order from the system mains. Refer to
FIG. 5 M
ETHOD 1.