Ravenheat HE Primary AAA, Instructions For Use Installation And Servicing

Supplied By www.heating spares.co  Tel. 0161 620 6677

should exceed 110 litres, an additional 
ves sel should be installed on the return 
to the combination boiler from the heating 
system (Fig 7) Guidance on vessel sizing 
is given in (Table 3).
Reference should be made to British 
Gas Publications «Material and 
Installation  Specifi cations for Domestic 
Central Heating and Hot Water» Draining 
taps should be at least 1/2” in BSP 
nominal size and be in accordance with 
BS 2879.

4.8.9  

Installation to an existing central heating    

 system

Before installing a new boiler to an existing 
system, fl ush out the old system with a rec-
ommended descaling agent.
It is most important that the correct concen-
tration of the water treatment product 
is maintained in accordance with the 
manu facturers’ instructions .
If the boiler is installed in an existing system 
any unsuitable additives 

MUST be 

removed 

by thorough cleansing BS 7593 1992 
details the steps necessary to clean 
domestic central heating system Also 
check pipework and renew any corrod ed 
pipework or fittings Valve glands must be 
repacked or replaced wherever neces-
sary and any defective controls exchanged.

WATER TREATMENT

This boiler has a secondary 
ALUMINIUM alloy heat exchanger.
Ravenheat recom 

mended 

only 

the 

use of FERNOX-COPAL S E N T I N E L 
X 1 0 0   o r   S A L A M A N D E R   C U R  ROSION 
GUARD water treatment products, 
which must be used in accordance 
with the manufacturers instructions 
For further information contact 
Fernox Manufacturing Co Ltd 
Tel 01799 550811
Sentinel Division Betz Dearborn Ltd 
Tel (0151) 424 5351 
Salamander (Eng)Ltd 
Tel (0121) 3780952/4508

 4.10         ELECTRICAL SUPPLY

Warning: this appliance must be 
earthed

4.10.1 

External wiring to the appliance 
must be carried out by a competent 
person and be in accordance with the 
current I.E.E. Regula 

tions and local 

regulations which apply The Ravenheat 
boiler is supplied for con 

nection 

to a 230 V ~ 50 Hz single phase 
supply 

The supply must be fused at 3 A.

NOTE The method of connection 
to the electricity supply MUST 
facilitate complete electrical isolation 
of the appliance, by the use of a fused, 
double pole isolator, having a contact 
separation of at least 3 mm in all poles 
The point of connection to the elec tricity 
supply must be readily accessible and

adjacent to the appliance except, 

where the appliance is installed 
in a bathroom, this MUST be sited 
outside the bathroom

SECTION 5

INSTALLATION 

5.1  

WARNING

5.1.1 

It is MOST IMPORTANT that this 
appliance is installed in a VERTICAL 
POSITION, with the fl ue air duct 
passing through the wall 

Make sure 

fl ue slopes 2.5° down towards 
the boiler that is 45 mm/m fall per 
metre of fl ue length.

15