British Gas RD1
-
Installation & Servicing
3
GENERAL
Boiler Size
109
112
115
118
121
124
130
Boiler input
Nett CV
kW
9.7
13.1
16.1
19.7
22.8
26.2
32.9
Btu/h x 1000
33.2
44.4
55.0
67.3
77.9
89.5
112.4
Boiler input
Gross CV
kW
10.8
14.5
17.85
21.9
25.3
29.1
36.5
Btu/h x 1000
36.8
49.3
61.0
74.7
86.5
99.3
124.7
Gas consumption
l/s
0.275
0.375
0.458
0.567
0.652
0.755
0.947
ft
3
/h
35.4
47.5
58.7
72.0
83.3
95.6
120.7
Output
kW
8.8
11.7
14.7
17.6
20.5
23.4
29.3
Btu/h x 1000
30.0
40.0
50.0
60.0
70.0
80.0
100.0
Burner Setting
pressure (HOT)
mbar
12.4
11.0
12.7
13.7
12.1
12.9
14.0
in.w.g.
5.0
4.4
5.0
5.5
4.8
5.2
5.6
Seasonal efficiency (SEDBUK)*
Band D
[79.6]%
[78.7]%
[79.8]%
[78.2]%
[78.5]%
[78.2]%
[78.0]%
Boiler Size
109
112
115
118
121
124
130
Gas supply connection
(in. BSP)
Rc 1/2 (1/2) 1/2" (BSP Female)
Flow connections (Pumped & Gravity)
mm copper
22
28 Fem
(Pumped only)
mm copper
28 Fem
Return connections (Pumped & Gravity)
mm copper
22
28 Fem
(Pumped only)
mm copper
28 Fem
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; 150W
Fuse rating
External; 3A
Internal; F2A to BS.4265
Water content
litre (gal.)
2.7 (0.6)
3.65 (0.8)
4.65 (1.0)
4.65(1.0)
Dry Weight
kg (lb)
40.9 (90.3)
46.6 (102.8)
52.6 (116.0)
52.6(116)
Maximum installation weight
kg (lb)
31.4 (69.3)
37.4 (82.5)
43.1 (95)
43.1(95)
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)
3 (9.8)
2 (6.6)
0.6 (2)
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 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.
NOTE TO THE INSTALLER: LEAVE THESE
INSTRUCTIONS ADJACENT TO THE GAS METER.
ALSO COMPLETE THE BENCHMARK LOG BOOK
AND GIVE THIS TO THE CUSTOMER.
