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Robust cast aluminium heat exchanger
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In-built commissioning and fault diagnostics
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Low NOx emissions
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Volt free contacts supplied as standard
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Meets Building Regulations 2006 (Part L2)
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Compact size - small footprint
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Fully modulating operation down to 20% of output
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Up to 107.5% nett efficiency (fully condensing)
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Fits through standard doorways
xtra 80 - 560kW
General Data xtra (80 - 560)
Model 80 120 160 200 240 280 320 400 480 560
Boiler output (condensing) 25.6 - 25.6 - 32.0 - 47.1 - 51.4 - 55.6 - 75.3 - 107.5 - 116.1 - 118.3 -
50/30˚C 82.2 123.4 164.5 207.8 249.4 290.9 329.0 415.6 498.8 581.8
Boiler output (non-condensing) 23.3 - 23.2 - 29.0 - 43.1 - 47.0 - 51.0 - 67.8 - 97.7 - 105.5 - 107.7 -
80/60˚C 77.4 116.0 154.8 195.4 234.5 273.6 311.6 390.8 469.0 547.2
Height 1150
Width 600 600 600 600 600 600 1200 1200 1200 1200
Depth 1024 1024 1024 1327 1327 1327 1004 1326 1326 1326
Flow connection (BSP) R2” R2” R2” R2” R2” R2” 80* 80* 80* 80*
Return connection (BSP) R2” R2” R2” R2” R2” R2” 80* 80* 80* 80*
Gas inlet connection (BSP) R1” R1” R1” R1” R1” R1” R2* R2* R2* R2*
Nominal flue size / concentric (mm) 150 150 150 200 200 200 200 250 250 250
Maximum working pressure (bar) 6
Water content (L) 11.0 14.3 17.5 18.4 24.0 27.2 35.0 36.8 48.0 54.4
Weight (kg) 132 150 168 198 215 233 336 396 430 466
Front (mm) 600
Back (mm) 700 700 700 700 700 700 1000 1000 1000 1000
Side (mm) 450 150 450 150 450 150 450 150 450 150 450 150 450 450 450 450
(LH)(RH) (LH)(RH) (LH)(RH) (LH)(RH) (LH)(RH) (LH)(RH)
*DN flange. Flow, return and gas connection sizes shown are for the optional header kit.
If header kit not used: Flow & Return connections are 2 x R2. Gas connection is 2 x R1.
Extended
Output
Range
Option Kits
Boiler xtra
80 - 280 320 - 560
Modulating sequence control for ✓✓
controlling multiple boiler installations
Programmable room thermostat ✓✓
Tank sensor kit ✓ n/a
BMS control kit (0-10V) ✓ Standard
Boiler xtra
80 - 280 320 - 560
Outside sensor kit ✓✓
Room sensor kit ✓✓
Sequencer DHW sensor kit ✓✓
Control interface kit ✓ Standard
Boiler
Clearances