5.1 WATER
CONNECTIONS
The Flow and Return pipework can be routed to either side of the
boiler, dependant on the type and direction of the fl ue system used.
For condensate disposal pipework refer to Section 6.
A drain cock is fi tted at the bottom on the front of the boiler to allow
the heating system to be drained.
PIPE ENTRY/EXIT HOLES IN CASE
All Utility models except the 46/70 have holes to enable the
pipework to exit the boiler casing.
Push out the ‘knock-out’ from the required holes, taking care not to
distort the side panel.
5.2 WATER
CONNECTIONS
SYSTEM
MODELS
A 15 mm discharge pipe must be connected to the safety valve
outlet connection. The pipework between the safety valve and the
boiler must be unrestricted, that is, no valves. The discharge pipe
should be run to the outside of the building and terminate so that it
cannot cause injury to persons or property.
A 15 mm double check valve ballofi x type valve is required on the
fl exible fi lling loop hose for connection of the cold mains supply to
the heating system.
The cold mains supply should terminate inside the boiler casing.
The expansion vessel is connected via a fl exible hose to allow it to
be moved to gain access to the baffl e cleaning cover.
When replacing the vessel, care should be taken to ensure that the
fl exible connecting hose is not twisted.
5.3 WATER
CONNECTIONS AND
THERMOSTAT PHIAL POSITIONS
Pipe Connections
Page 18
Figure 5-1:
Vortex Utility 15/26
Figure 5-2:
Vortex Utility 26/46
Figure 5-3:
Vortex Utility 46/70
5 PIPE CONNECTIONS
SYSTEM
