Ideal Heating GB24, Технические инструкции

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4
SECTION 1 - GENERAL
Note. Gas consumption is calculated using a
calorific value of 95.65 MJ/m
3
(2569 Btu/ft
3
) gross
or 88 MJ/m
3
(2360 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
)
c. For m
3
/h - multiply l/s by 3.6.
Key to symbols
C
13
C
33
= A room sealed appliance designed for connection via ducts to a
horizontal or vertical terminal, which admits fresh air to the burner
and discharges the products of combustion to the outside through
orifices which, in this case, are concentric. The fan is up stream of
the combustion chamber.
I
3P
= An appliance designed for use on 3rd Family gas, Group P only.
* 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 1 - General Data
Maximum DHW Input : 24 30
Nett CV kW 24.3 30.4
Btu/h 82,912 103,725
Gross CV kW 26.4 33
Btu/h 90,077 112,596
Gas Consumption m
3
/h 1.00 1.25
ft
3
/h 35.33 44.20
kg/h 1.83 2.26
Maximum kW 24.2 30.3
DHW Output Btu/h 82,570 103,384
DHW Flow Rate l/min 9.9 12.4
at 35°C temp. rise. gpm 2.2 2.8
DHW Specific Rate l/min 11.5 14.5
gpm 2.5 3.2
Table 2 - Performance Data - Central Heating
Table 3 - Performance Data - Domestic Hot Water
*Required for maximum flow rate. Boiler operates down to 2 l/min DHW delivery
Ideal GB
Series III
24 30
Gas Supply I
3P
- G31 - 37mbar
Gas Supply Connection 15mm copper compression
Injector Size mm 3.3 3.75
Inlet Connection Domestic Hot Water G ½
Outlet Connection Domestic Hot Water G ½
Flow Connection Central Heating G ¾
Return Connection Central Heating G ¾
Flue Terminal Diameter mm 100
Average Flue Temp-Mass Flow Rate DHW 63ºC - 11g/s 68ºC - 13 g/s
Maximum Working Pressure (Sealed Systems) bar (lb/in
2
) 2.5 (36.3)
Maximum Domestic Hot Water Inlet Pressure bar (lb/in
2
) (kPa) 10.0 (145) (1000)
Minimum Domestic Hot Water Inlet Pressure* bar (lb/in
2
) (kPa) 0.8 (11.6) (80) 1.3 (18.9) (130)
Electrical Supply 230 V - 50 Hz.
Power Consumption W 79 79
Fuse Rating External : 3A Internal : T4H HRC L250 V
Water Content Central Heating litre (gal) 1.2 (0.26)
Domestic Hot Water litre (gal) litre (gal) 0.5 (0.11)
Packaged Weight kg 32.9 32.9
Maximum Installation Weight kg 30 30
Boiler Casing Size Height mm 700
Width mm 395
Depth mm 285
Max. Min.
Boiler Input : 24 30 24 30
Boiler Input ‘Q’ Nett CV kW 17.3 20.4 4.9 6.1
Btu/h 59030 69607 16720 20814
Gross CV kW 18.8 22.2 5.3 6.6
Btu/h 64148 75749 18084 22520
Gas Consumption m
3
/h 0.71 0.82 0.20 0.25
ft
3
/h 25.1 29.0 7.1 8.8
Boiler Output :
Non Condensing
kW 17.2 20.4 4.9 6.1
70
o
C Mean Water temp. Btu/h 58688 16720 16720 20814
Condensing kW 18.2 21.6 5.15 6.45
40 o C Mean Water temp. Btu/h
62100 73702 17572 22008
Seasonal efficiency* SEDBUK 2005 24kW = 91.0 30kW = 91.1
Seasonal efficiency* SEDBUK 2009 24kW = 88.9 30kW = 89.5
NOx Classification CLASS 6