8
SR-plus Technical & Performance Details
Dimensions and Technical Information
SR-plus heating boiler (models 1200 to 4000)
Key
1 Flow 4 Hydraulic Drain 7 Flue Gas Test Point
2 Return 5 Shell Access Connection 8 Flue Outlet
3 Safety Valve Connection 6 Smokebox Cleaning Door 9 Control Panel
10 Smokebox Condensate Drain Connection
A single phase 230V supply is required for the control
panel operation. Single phase burners are electrically
supplied via the control panel. Three phase burners
require a separate three phase isolated supply
connection to allow for boiler/burner door opening. A separate
the control panel and the burner. All power supplies to the boiler/
burner/other associated equipment (ie: gas booster, separate oil
pump, etc.) should be isolated via the same switched isolator.
SR-
Plus
Model
kW Rating
at high
A B C D E F G H J L M N
Flow/Return
BS4504 PN16
Safety valve
Flanged
to BS4504
PN16
(from model
1750)
Flue I/D
Dry
Weight
kg
Water
Content
litres
1200 1151-1250 1626 1500 2909 2514 876 220 1795 1345 380 876 1745 1630 125 N/B R2” 350 3350 1320
1500 1426-1500 1722 1590 2909 2514 927 220 1806 1356 466 927 1833 1718 150 N/B R2” 400 3650 1330
1750 1625-1760 1852 1720 3361 2966 992 220 2137 1687 500 992 1990 1875 150 N/B 100 N/B 400 4325 2150
2000 1900-2050 1952 1820 3381 2966 1042 240 2137 1687 590 1042 2090 1983 150 N/B 100 N/B 450 4600 2690
2250 2200-2350 2103 1970 3494 3069 1118 250 2200 1750 590 1118 2260 2145 150 N/B 100 N/B 450 5400 3350
2500 2450-2650 2143 2016 3585 3140 1135 270 2372 1922 600 1135 2323 2208 200 N/B 100 N/B 450 5900 3660
3000 2900-3000 2261 2120 3674 3219 1200 280 2502 2052 600 1200 2448 2333 200 N/B 100 N/B 500 6525 3670
3500 3250-3500 2477 2300 4235 3720 1327 340 2652 2112 812 1327 2628 2513 200 N/B 100 N/B 500 8700 4020
4000 3750-4150 2660 2400 4270 3759 1460 340 2662 2162 812 1460 2702 2587 200 N/B 100 N/B 550 10850 4130
Control panel can be
mounted on left or right
hand side.
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