Yeoman YM-CL8HB manual Installation Instructions, Feed and Expansion Cistern

INSTALLATION INSTRUCTIONS

See below typical layout of a pumped central heating hot water circuit with gravity.

Feed and

Expansion Cistern

Cold Water Storage Cistern

Two port

normally open motorized valve controlled by cylinder thermostat

Heat Leak radiator with two full way lock shield valves

Thermostatic radiator valves	Programmable room
to provide temperature zoning	thermostat

Double Feed indirect cylinder

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

Pump and isolating valves

Injector tee

to pump assist the thermosyphon circuit when the pump is operating

Yeoman High Output Boiler

installed to BS8303, ADJ and these installation instructions

See below typical layout of a fully pumped central heating and hot water circuit.

	Cold Water
	Storage Cistern			Two	port
	Feed and
	Expansion Cistern			energised closed when pump
				activated
					Two port
					normally open motorized valve controlled
		Double Feed			by cylinder thermostat and programmer
		indirect cylinder				Heat Leak radiator	Thermostatic radiator valves
		Circulator and					to provide temperature zoning
						with two full way lock
		isolating valves				shield valves
Two port
normally open motorized valve
controlled by room thermostat
and programmer
				Two channel
Yeoman High				programmer
Output Boiler
installed to
BS8303, ADJ and
these installation			High limit pipe thermostat
instructions
				Low limit pipe thermostat
			to bring on circulator in an
				to prevent the pump coming on until a minimum temperature is reached
			overheat situation

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