Keston System s30, Installation And Servicing Instructions

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8
Installation and Servicing
SECTION 1 - GENERAL
30
Gas supply 2H - G20 - 20mbar
Gas Supply Connection 15mm copper compression
Injector Size (mm) 4.65
Flow Connection Central Heating 22mm copper compression
Return Connection Central Heating 22mm copper compression
Flue Terminal Diameter mm (in) 50 (2)
Average Flue Temp-Mass Flow Rate 69
o
C - 13g/s
Maximum Working Pressure (Sealed Systems) bar (lb/in
2
) 2.5 (36.3)
Electrical Supply 230 V ~ 50 Hz.
Power Consumption W 100
Fuse Rating External : 3A Internal : T4A HRC L250 V
Water content litre (gal) 1.2 (0.26)
Packaged Weight kg 31.6
Maximum Installation Weight kg 26.2
Boiler Casing Size Height mm 700
Width mm 395
Depth mm 278
Table 1 - General Data
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 Btu/h
- multiply the gross heat input (kW) by
26.8
c. For ft
3
/h - divide the gross heat input (Btu/h) by
the gross C.V. of the gas (Btu/ft
3
)
d. For m
3
/h
- multiply l/s by 3.6
Key to symbols
GB
= United Kingdom IE = Ireland (Countries of destination)
PMS = Maximum operating pressure of water
C
13
C
53
= A room sealed appliance designed for connection via ducts to a horizontal
terminal, which admits fresh air to the burner and discharges the products
of combustion to the outside. The fan is up stream of the combustion
chamber.
I
2H
= An appliance designed for use on 2nd Family gas, Group H 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.
30
MIN MAX
Boiler Input :
Boiler Input ‘Q’ Nett CV
kW 6.1 30.4
Gross CV kW 6.7 33.7
Gas Consumption m
3
/h 0.622 3.135
(ft
3
/h) (22) (111)
Boiler Output :
Non Condensing kW
6.1 30.3
70
o
C Mean Water temp.
Condensing kW 6.4 31.0
40
o
C Mean Water temp.
Seasonal efficiency* SEDBUK 2005 91.1%
Seasonal efficiency* SEDBUK 2009 89.6%
NOx Classification CLASS 5
Table 2 - Performance Data - Central Heating