3
INDUSTRIE
INTRODUCTION
Gas Safety (Installation and Use) Regulations 1994 (As Amended)
This appliance must be installed and serviced by a competent person, in accordance with the above regulations.
Failure to install appliances correctly could lead to prosecution.
It is in your own interest and that of safety, to ensure that these regulations are complied with.
Boiler Description
The FER Hawk II is a room sealed combination boiler using a fan assisted balanced flue.
The boiler, providing both central heating and instantaneous hot water at mains pressure, has been designed for
use with a sealed central heating system.
The pump, expansion vessel and all safety devices are fitted within the boiler.
The boiler will suit central heating systems requiring 9.7 to 23.3 kW.
The boiler will automatically modulate to provide the correct amount of heat required for the system, no range rating
is needed.
The maximum domestic hot water temperature is set at 55
°
C and will provide 9.2 litres/min. of water at 35
°
C
temperature rise.
The central heating water temperature is controllable by the boiler thermostat which can be adjusted by the user.
A six minute pump over run is incorporated to dissipate heat following shut down of the central heating.
The pump is not required to operate during use of the domestic hot water, although a one second pump spin will
automatically cut in when the domestic hot water is shut off thus preventing failure of the pump (due to sticking)
in the summer months.
A permanent pilot is used to provided ignition for the main burner, this is lit by the use of a piezo igniter.
The boiler is designed to be used with an external time switch/room thermostat of voltage free contacts.
The following automatic safety features are included:-
Overheat safety thermostat to shut off the boiler and pilot if the heat exchanger exceeds a preset temperature.
Limit thermostat on the central heating.
A pressure safety valve which will open and relieve excess water pressure from the central heating system.
Related Documents
It is the Law that all gas appliances are installed by competent persons in accordance with the following regulations:-
Gas Safety (Installation & Use) Regulations 1994. (As amended).
All relevant Building Regulations.
Model and Local Water undertaking ByeLaws.
Health & Safety document 635 "The Electrician at Work Regulations 1989".
Current I.E.E. Regulations. (BS 7671).
British Standard Codes of Practice:-
BS5440: 1 1990 Flues
BS5440: 2: 1989 Air supply
BS5449: 1990 Forced Circulation Hot Water Systems
BS5546: 1990 Installation of Hot Water supplies for Domestic Purposes.
BS6798: 1987 Installation of Gas Fired hot Water Boilers.
BS6891: 1989 Gas Installations.
BS7593: 1993 Treatment of Water in Domestic Hot Water Central Heating Systems.
BS4814: 1990 Specification for expansione vessals
