GENERAL
4
Mini
--- Installation & Servicing
Table 1 --- Boiler Data
Mini C24
Mini C28
Mini C32
Mini S24
Mini S28
Gas supply type & connection
II
2H3P
G20 20mbar, G31 37mbar, 22 mm copper
Inlet / Outlet connection --- Domestic Hot Water
15 mm copper
---
Flow & return connection --- Central Heating
22 mm copper
Flue terminal diameter
mm (in.)
100 (4)
Max working pressure
(sealed system)
bar (lb/in
2
)
2.5 (36.3)
Max DHW water inlet pressure
bar (lb/in
2
)
10.0 (145.0)
---
Min DHW water inlet pressure
bar (lb/in
2
)
0.3 (4.4)
---
Electrical supply
230 Vac 50 Hz
Max power consumption
W
150
170
180
150
170
External fuse rating
3 A
Internal fuse rating
3.15 AF
Water content --- CH
litre (gal.)
1.0 (0.22)
1.1 (0.242)
1.0 (0.22)
1.1 (0.242)
Water content --- DHW
litre (gal.)
0.2 (0.044)
---
Dry weight
kg (lb.)
37 (81.6)
39 (86.0)
39 (86.0)
36 (79.4)
38 (83.8)
Size: Height / Width / Depth
mm (in.)
703 (27 11/16”) / 400 (15 3/4”) / 310 (12 3/16”)
Lift weight
kg (lb.)
35.5 (78.4)
36.5 (80.6)
36.5 (80.6)
34.5 (76.2)
35.5 (78.4)
Table 2 --- Performance Data --- Central Heating
Mini C24
Mini S24
Mini C28
Mini S28
Mini C32
Max
Min
Max
Min
Max
Min
Burner pressure (Hot)
G20
G31
mbar
(in.w.g.)
11.7 (4.7)
35.7 (14.3)
1.8 (0.7)
6.1 (2.4)
11.7 (4.7)
35.7 (14.3)
1.8 (0.7)
5.7 (2.3)
11.7 (4.7)
35.7 (14.3)
1.8 (0.7)
6.7 (2.7)
Input based on nett CV
kW
(btu/h)
26.60
(90 759)
11.00
(37 532)
31.10
(106 113)
13.00
(44 356)
35.20
(120 102)
15.50
(52 886)
Input based on gross CV
kW
(btu/h)
29.52
(100 732)
12.21
(41 656)
34.52
(117 773)
14.43
(49 230)
39.07
(133 306)
17.20
(58 686)
Output
kW
(btu/h)
24.30
(82 912)
9.10
(31 049)
28.40
(96 901)
10.80
(36 850)
32.00
(109 184)
12.70
(43 332)
Gas consumption (Hot) G20
G31
l/s (ft
3
/h)
l/s
0.763 (97.0)
0.309
0.315 (40.1)
0.128
0.892 (113.5)
0.361
0.373 (47.4)
0.151
1.010 (128.4)
0.400
0.444 (56.5)
0.176
Seasonal efficiency*
(SEDBUK)
%
Band D
78.2
Band D
78.3
Band D
78.3
NOx classification
Class 3
Class 2
Class 3
*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.
Table 3 --- Performance Data --- Domestic Hot Water
Mini C24
Mini C28
Mini C32
Maximum
Burner pressure (Hot)
G20
G31
mbar
(in.w.g.)
11.7 (4.7)
35.7 (14.3)
11.7 (4.7)
35.7 (14.3)
11.7 (4.7)
35.7 (14.3)
Input based on nett CV
kW (btu/h)
26.60 (90 759)
31.10 (106 113)
35.20 (120 102)
Input based on gross CV
kW (btu/h)
29.52 (100 732)
34.52 (117 773)
39.07 (133 306)
Output
kW (btu/h)
24.30 (82 912)
28.40 (96 901)
32.00 (109 184)
Gas consumption (Hot) G20
G31
l/s (ft
3
/h)
l/s
0.763 (97.0)
0.309
0.892 (113.5)
0.361
1.010 (128.4)
0.400
Flow 35
˚
C temp. rise
l/m (gpm)
10.0 (2.2)
11.6 (2.6)
13.1 (2.9)
Domestic hot water specific
rate
l/m (gpm)
11.6 (2.6)
13.6 (3.0)
15.3 (3.4)
Note: the 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 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
)
Key to Symbols:
IE = Ireland, GB = United Kingdom (Countries of destination)
PMS = Maximum operating pressure of water
C
12
C
32
C
52
= a room sealed appliance designed for
connection via concentric ducts to a horizontal or vertical
terminal or twin flue system.
II
2H3P
= appliance designed for use on 2nd family gas group
H or 3rd family gas group 3P
CAUTION. To avoid the possibility of injury during the installation, servicing or cleaning
of this appliance care should be taken handling edges of sheet steel components.
