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Table 1 - General Data
Boiler size
Gas supply
Gas Supply Connection
Injector size
Inlet Connection
Outlet Connection
Flow Connection
Return Connection
Flue Terminal Diameter
Average flue temp/mass flow rate
Maximum Working Pressure (Sealed Systems)
Maximum Domestic Hot Water Inlet Pressure
Minimum Domestic Hot Water Inlet Pressure
Maximum Domestic Hot Water Outlet Pressure
Temperature & Pressure relief valve
Electrical Supply / Power consumption
Fuse Rating
Water content
Packaged Weight - Boiler box
Packaged Weight - Tank box
Maximum Installation Weight -Boiler box
Maximum Installation Weight -Tank box
Boiler Casing Size
Potable water components on tank module
Pressure reducing valve
Thermostatic mixer
Pressure and temp relief valve on cylinder
Pressure relief valve on inlet manifold
DHW expansion vessel
Table 2 - Performance Data - Central Heating
Boiler Input :
Nett CV
Gross CV
Gas Consumption
Boiler Output :
Non Condensing
Condensing
Seasonal efficiency (SEDBUK)*
NOx Classification
* 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.
Note. Gas consumption is calculated using a
calorific value of 38.7 MJ/m
gross or 34.9 MJ/m
(935 Btu/ft
3
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
/h - divide the gross heat input (Btu/
h) by the gross C.V. of the gas (Btu/ft
CAUTION.
To avoid the possibility of injury during the installation, servicing or cleaning
of this appliance, care should be taken when handling edges of sheet steel components.
4
Domestic Hot Water
Domestic Hot Water
Central Heating litre (gal)
Domestic Hot Water
Max.
kW
24.4
(Btu/h)
(83 300)
(31 000)
kW
27.1
(Btu/h)
(92 500)
(34 400)
l/s
0.70
(ft
/h)
(89.1)
3
kW
23.4
(Btu/h)
(80 000)
(30 000)
kW
25.1
(Btu/h)
(83 700)
(32 800)
Band A [90.1]%
Class 5
(1038 Btu/ft
)
3
3
) nett
3
)
3
)
3
GENERAL
Central Heating
Central Heating
mm (in)
(DHW)
bar (lb/in
)
2
bar (lb/in
2
)
bar (lb/in
)
2
bar (lb/in
)
2
kg (lb)
kg (lb)
kg (lb)
kg (lb)
Height mm (in)
Width mm (in)
Depth mm (in)
Table 3 - Performance Data - Domestic Hot Water
Maximum DHW Input :
Min.
9.1
10.1
0.26
Maximum DHW Output
(33.2)
DHW Storage Temp
8.8
DHW Delivery Temp
Variable on Installation only
9.6
DHW Flow Rate
(Practical maximum assuming
suitable mains supply)
DHW Recovery from 15
After 70% draw off
Key to symbols
IE =
Ireland, GB = United Kingdom (Countries of destination)
PMS = Maximum operating pressure of water
C
C
C
= A room sealed appliance designed for connection via ducts to a
13
33
53
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
= An appliance designed for use on 2nd Family gas, Group H only.
2H
istor HE260
2H - G20 - 20mbar
Rc 1/2 (1/2" BSP female)
Stereomatic 5.6mm dia.
22mm copper
22mm copper
22mm copper
22mm copper
100 (4)
o
74
C / 20.3g/s
2.5 (36.3)
10.0 (145)
0.5 (7)
2.0 (29)
Preset 95
C / 4.0 Bar opening
o
230 V ~ 50 Hz. / 148 W
External : 3A
2.0 (.44)
80 litre
58.5 (129)
66 (145)
55 (121)
59 (130)
1400 (55)
560 (22)
600 (23.6)
preset to 2 bar
max inlet temp 85
C/max pressure 14 bar
o
90
C and 4 bar
o
3 bar
19 litres, precharged to 2 bar
Nett CV
(Btu/h)
Gross CV
(Btu/h)
Gas Consumption
(Btu/h)
Factory set
C
0
istor system store -
Installation and Servicing
istor HE325
Internal : 3.15A TL250 V
120 litre
58.5 (129)
73 (161)
55 (121)
65 (143)
1600 (63)
560 (22)
600 (23.6)
kW
30.2
(103 100)
kW
33.5
(114 300)
l/s
0.87
(ft
/h)
(110)
3
kW
29.3
(100 000)
o
70
C
o
60
C
o
o
45
C-65
C
HE260 HE325
l/min
35
35
min.
14
20
min.
9
12
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