6
TYPICAL SYSTEM DESIGN
ALTERNATIVE METHODS OF FILLING A SEALED SYSTEM
NOTE: A drain cock should be installed at the lowest point of the heating circuit and beneath the appliance.
NOTES:
– When it is not possible to avoid a situation where the initial system pressure and static head are equal a manually fit-
ted top up container should be fitted as shown above.
Take note of the requirements relative to container capacity: height above system, inclusion of a non-return valve,
stop cock and automatic air vent in the feed pipe, as shown in fig. 5.
Note also the feed pipe connection is made to the heating return as close to the appliance as possible.
– The Local Water Undertaking MUST approve ALL connections between the system and a water storage cistern or
water main supplying D.H.W.
METHOD 1 (complies with BS6798.1987)
METHOD 2 (complies with BS6798.1987)
Fig. 5
Fig. 6
Summary of Contents for Murelle 25 BF
Page 24: ...Format C installation and servicing instructions...
Page 53: ...26...
