1.1 INTRODUCTION
The Sime “FRIENDLY” is a wall mounted, fan assisted
balanced flue combination boiler.
The appliance can be fuelled with natural gas and is range
rated to provide C.H. outputs of between 9.7 kW (33,000
Btu/h) and 23.4 kW (80,000 Btu/h) with instantaneous
D.H.W. priority. Heat output is varied according to demand by
the modulating gas control on both D.H.W. and C.H.
The appliance is supplied with a concentric air and flue duct
suitable for flue lengths of up to 0.83 m (32
1
/
2
in) although
extension duct kits are available and may be used up to a
flue length of 2.4 m (94
1
/
2
in). The combined flue and air
duct can exit the boiler from either side or from the rear of
the appliance. A vertical extension and additional flue elbow
may be fitted.
The boiler is designed for use with sealed primary water
systems and is supplied fully assembled and equipped with
complete valve packs. If the wall thickness is less than 0.5 m
(19 in) the appliance can be installed from inside the room
without access to the external wall although a wall liner is
required.
This is available as an optional extra, and full details are
given in section 3. The boiler has to be used with a 240 V
room thermostat (class II according to EN 60730.1).
This booklet provides instructions for the following boiler
models:
– “FRIENDLY” with permanent pilot and electronic modu-
lation;
– “FRIENDLY E”: electronic ignition with intermittent pilot
and electronic modulation.
1
1 TECHNICAL FEATURES AND DIMENSIONS
TABLE 2 - Minimum clearances
mm in
ABOVE THE APPLIANCE CASING 200 8
AT THE R.H.S. 90 3
1
⁄2
AT THE L.H.S. 30 1
3
⁄18
BELOW THE APPLIANCE CASING 200 8
IN FRONT OF THE APPLIANCE 450 18
TABLE 1 - Connections
R C.H. return 22 mm Compression
M C.H. flow 22 mm Compression
G Gas connection 1/2 in Bsp
E Cold water 15 mm Compression
U Hot water 15 mm Compression
S Safety valve 15 mm Copper
1.2 DIMENSIONAL DETAILS
Fig. 1
To Next Page
Loading...
Need help?
General