General Description; Related Documents - Ferroli optima 2001 VMF7 Installation Instructions Manual

Wall mounted, room sealed, fan assisted, gas condensing combination boiler

Table of Contents

General Description

The Ferroli

2001 is a wall mounted, room sealed, fan assisted, condensing combination boiler for Central Heating (C.H.)

and domestic Hot Water (D.H.W.).

The boiler is of light weight construction with two heat exchangers providing Central Heating and Domestic Hot Water from an

integrally designed unit. The boiler contains its own expansion vessel for sealed systems. The wall mounting jig contains all the

isolating cocks for the water and gas supplies which can be fitted to the wall and provided with all the necessary gas and water

connections prior to the boiler being attached. The flue can either be left hand, right hand or rear. There are three flue lengths

available and they are 0.75 metres (for wall thickness up to 565 mm), 2 metres (for wall thickness up to 1815 mm) and 3 metres

(for wall thickness) up to 2815 mm these wall thicknesses assume a rear flue outlet. For side outlet the effective wall thickness for

each flue length is reduced by 91 mm plus the distance of the appliance from the side wall. The Central Heating and the Domestic

Hot Water temperature is controlled by the Honeywell Modureg valve in conjunction with the P.C.B. There is a limit thermostat on

the central heating circuit which operates at 88°C. There is also an overheat cut-off thermostat which will shut the boiler down

completely and this thermostat operates at 100°C. The boiler is fited with its own Central Heating pump. The pump is switched

ON/OFF by the time clock and/or a 24 Volt room thermostat. The pump circuit also has a 6 minute over-run time. There is a Domestic

Hot Water flow switch fitted and when there is a demand for Domestic Hot Water (flow of more than 0.5 gallon/minute, 2.5 litre/

minute) the Central Heating pump is switched off making available the maximum output of the gas burner for Domestic Hot Water.

On the P.C.B. the maximum output for Central Heating can be set. This does not influence the maximum output for domestic hot water.

At the factory the central heating output is pre-set to maximum. The appliance is not suitable for external installation.

This appliance can also be installed using the Ferroli two pipe flue system providing flue lengths up to 20 m (see flue options

instructions).