B
oiler
Page
Make and model ......................................................... 7
Appliance serial no. on data badge .......... Front Cover
SEDBUK No. % .......................................................... 6
Controls
Time and temperature control to heating ................. 28
Time and temperature control to hot water ............ n/a
Heating zone valves
................................................. 13
TRVs ........................................................................ 13
Auto bypass ............................................................. 13
Boiler interlock .......................................................... 13
For all boilers
Flushing to BS.7593 ................................................. 13
Inhibitor .................................................................... 13
Central heating mode
Heat input ...................................................to be calculated
For assistance call
Technical Helpline
01482 443005
Page
Burner operating pressure ...................................... n/a
Central heating flow temp.
...........measure and record
Central heating return temp. ........measure and record
For combination boilers only
Scale reducer ........................................................... 13
Hot water mode
Heat input ............................................to be calculated
Max. operating burner pressure .............................. n/a
Max. operating water pressure ........ measure & record
Cold water inlet temp ...................... measure & record
Hot water outlet temp. ..................... measure & record
Water flow rate at max. setting
........ measure & record
For condensing boilers only
Condensate drain ................................................23-24
For all boilers:
Complete, sign & hand over to customer
For UK intallations, to comply with Building Regulations Part L1 (Part 6 in Scotland), the boiler should be fitted in accordance with
the manufacturer’s instructions. Self-certification that the boiler has been installed to comply with Building Regulations can be
demonstrated by completing and signing the Benchmark Commissioning Checklist.
Before installing this boiler, read the Code of Practice sheet at the rear of this book.
BENCHMARK COMMISSIONING CHECKLIST DETAILS
NOTE TO THE INSTALLER: COMPLETE THE BENCHMARK COMMISSIONING CHECKLIST
AND LEAVE THESE INSTRUCTIONS WITH APPLIANCE
Natural Gas Only
Destination Country:
GB, IE, RO
KESTON COMBI
2
C
BOILER SIZE kW
G.C. Applicance No
(Benchmark No.)
30
47-930-09
35
47-930-10
30 kW
35 kW
Gas Supply
2H - G20 - 20 mbar
Gas Supply Connection
15 mm copper compression
Injector Size
mm
4.65
4.9
Inlet Connection
Cold Water
15 mm copper compression
Outlet Connection
Cold Hot Water
15 mm copper compression
Flow Connection
Central Heating
22 mm copper compression
Return Connection
Central Heating
22 mm copper compression
Flue Terminal Diameter
mm
50
Average Flue Temp-Mass Flow Rate
DHW
68ºC - 13g/s
73ºC - 15g/s
CO2 Content (± 0.7)
Max. DHW
9.3%
9.7%
Min. CH
8.5%
8.8%
Maximum Working Pressure (Sealed Systems)
bar (psi)
2.5 (36.3)
Maximum Domestic Hot Water Inlet Pressure
bar (psi) [kPa]
10.0(145)
[1000]
Minimum Domestic Hot Water Inlet Pressure*
bar (psi) [kPa]
1.3(18.9) [130]
1.3(18.9)**[130]
Minimum DHW Inlet Pressure to Operate at 0.6 bar System
Pressure
All Model Sizes 0.5 bar
Electrical Supply
230 V ~ 50 Hz
Power Consumption
W
93
110
Fuse Rating
External : 3 A Internal : T4A HRC L250 V
Water Content
Central Heating litre (gal)
1.2 (0.26)
Domestic Hot Water litre (gal)
1.0 (0.22)
Packaged Weight
kg
32.9
32.9
Lift Weight
kg
28.6
28.6
Boiler Casing Size
Height mm
700
Width mm
395
Depth mm
278
7
Installation and Servicing
Section 1 - General
