Yeoman YM-CL8HB - Manual (Page 29)

29
INSTALLATION INSTRUCTIONS
See below typical layout of a fully pumped central heating and hot water circuit.
Feed and
Expansion Cistern
Cold Water
Storage Cistern
Double Feed
indirect cylinder
Circulator and
isolating valves
Two channel
programmer
Two port
normally open motorized valve
controlled by room thermostat
and programmer
Yeoman High
Output Boiler
installed to
BS8303, ADJ and
these installation
instructions High limit pipe thermostat
to bring on circulator in an
overheat situation
Low limit pipe thermostat
to prevent the pump coming on until a minimum temperature is reached
Heat Leak radiator
with two full way lock
shield valves
Thermostatic radiator valves
to provide temperature zoning
Two port
normally open motorized valve controlled
by cylinder thermostat and programmer
Two port
energised closed when pump
activated
Yeoman High Output Boiler
installed to BS8303, ADJ and these installation instructions
High limit pipe thermostat
to bring on circulator in an
overheat situation
Thermostatic radiator valves
to provide temperature zoning
Heat Leak radiator
with two full way lock
shield valves
Two port
normally open motorized valve
controlled by cylinder thermostat
Low limit pipe thermostat
to prevent the pump coming on until
a minimum temperature is reached
Injector tee
to pump assist the
thermosyphon circuit when
the pump is operating
Double Feed
indirect cylinder
Feed and
Expansion Cistern
Cold Water
Storage Cistern
See below typical layout of a pumped central heating hot water circuit with gravity.
Pump and
isolating valves
Programmable room
thermostat