2
Classic FF 340 - 360 LF
-
Installation & Servicing
CAUTION.
To avoid the possibility of injury during the installation, servicing or cleaning of this
appliance, care should be taken when handling edges of sheet steel components
Boiler Size
FF 340 LF
FF 350 LF
FF 360 LF
Boiler input
kW
14.5
17.85
21.9
Btu/h x 1000
49.3
61.0
74.7
Gas consumption
l/s
0.375
0.45
0.567
ft
3
/h
47.5
58.7
72.0
Boiler output
kW
11.7
14.7
17.6
Btu/h x 1000
40
50
60
Burner Setting
pressure (HOT)
mbar (in.w.g.)
11.0 (4.4)
12.7 (5.0)
13.7 (5.5)
Seasonal Efficiency (SEDBUK) *
Band D
[79.1]%
[78.4]%
[79.0]%
Boiler Size
FF 340 LF
FF 350 LF
FF 360 LF
Gas supply connection
(in. BSP)
Rc 1/2 (1/2) 1/2" (BSP Female)
Flow connection
22mm
copper
Return connection
22mm
copper
Maximum static water head
m (ft.)
30.5 (100)
Minimum static water head
m (ft.)
0.45 (1.5)
Electrical supply
230 V 50 Hz Boiler power consumption; 100W
Fuse rating
External; 3A Internal; F1A to BS.4265
Water content
litre (gal.)
2.7 (0.6)
3.65 (0.8)
3.65 (0.8)
Dry Weight
kg (lb)
40.9 (90.3)
46.6 (102.8)
46.6 (102.8)
Maximum installation weight
kg (lb)
31.4 (69.3)
37.4 (82.5)
37.4 (82.5)
Boiler size
Height mm (in.)
700 (27.5)
Width mm (in.)
380 (15.0)
Depth mm (in.)
300 (11.8)
Flue duct diameter
mm (in.)
100 (4.0)
Flue duct length (max)
m (ft)
4.5 (14.7)
Note.
Gas consumption is calculated using a calorific value of 38.7 MJ/m
3
(1038 Btu/ft
3
) gross or
34.9 MJ/m
3
(935 Btu/ft
3
) nett
To obtain the gas consumption at a different calorific value:-
a. FOR L/S - divide the gross heat input (kW) by the gross C.V. of the gas (MJ/m
3
)
b. FOR FT
3
/H - divide the gross heat input (Btu/h) by the gross C.V. of the gas (Btu/ft
3
)
Table 1 - General Data
Table 2 - Performance Data
*
The value is used in the UK Government's Standard Assessment Procedure (SAP) for energy rating of
dwellings. The test data from which it has been calculated have been certified by a notified body.
GENERAL DATA
Summary of Contents for Classic FF 340 LF
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