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Imax Xtra (F320-F560) Installation Guide
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Imax Xtra

The Imax xtra range of condensing boilers is offered in ten models with outputs from 80 to 560 kW suitable for floor standing application in either single or multiple applications.

Optimum control is achieved at all times through the use of a microprocessor readily accessible on the boiler front. Commissioning and full fault diagnostics are provided whilst remote indication of boiler run and alarm is standard. A wide range of control options ensures easy application of BMS systems, sequencing and sensor control.

The fully modulating burner operation ensures that the boiler operates as efficiently as possible throughout the firing cycle even down to 20% of the maximum rating. This enables the unit to match its output to all system requirements no matter the size.

F320-F560 models comprise of two modules within the one boiler, operating as previously described. Control of the two modules operating simultaneously is built in to the boiler.

The Imax xtra range meets the requirements of the latest Building Regulations 2010 (Part L2) with low NOx class 5 performance.

Efficiency

Features

Range of ten models from 80 – 560kW
Compact size – small footprint
Fully modulating operation down to 20% of output
Up to 107.5% nett efficiency (fully condensing)
Fits through standard doorways
Adjustable feet

Robust cast aluminium heat exchanger
In-built commissioning and fault diagnostics
Low NOx emissions (Class 5)
Volt free contacts supplied as standard
Meets Building Regulations 2010 (Part L2)

Specification

General Data
Dimensions & Clearances
Option Kits

Model		80	120	160	200	240	280	320	400	480	560
Boiler output (condensing) 50/30°C		25.6 - 82.2	25.6 - 123.4	32.0 - 164.5	47.1 - 207.8	51.4 - 249.4	55.6 - 290.9	75.3 - 329.0	107.5 - 415.6	116.1 - 498.8	118.3 - 581.8
Boiler output (condensing) 80/60°C		23.3 - 77.4	23.2 - 116.0	29.0 - 154.8	43.1 - 195.4	47.0 - 234.5	51.0 - 273.6	67.8 - 311.6	97.7 - 390.8	105.5 - 469.0	107.7 - 547.2
Height	mm	1150
Width	mm	600	600	600	600	600	600	1200	1200	1200	1200
Depth	mm	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"	R"	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
Dry Weight (Approx)	kg	132	150	168	198	215	233	336	396	430	466
Boiler Clearances (mm)	Front	600
	Back	700	700	700	700	700	700	1000	1000	1000	1000
	Left	450	450	450	450	450	450	450	450	450	450
	Right	150	150	150	150	150	150	450	450	450	450
Seasonal Efficiency (Ref L2)	%	95.13	95.13	95.13	95.18	95.18	95.18	95.13	95.18	95.18	95.18

* DN flange. Flow, return and gas connection sizes shown are for the optional header kit.
If header kit not used: Flow and Return connections are 2 x R2. Gas connection is 2 x R1.

Model		80	120	160	200	240	280	320	400	480	560
Height	mm	1150
Width	mm	600	600	600	600	600	600	1200	1200	1200	1200
Depth	mm	1024	1024	1024	1327	1327	1327	1004	1326	1326	1326
Boiler Clearances (mm)	Front	600
	Back	700	700	700	700	700	700	1000	1000	1000	1000
	Left	450	450	450	450	450	450	450	450	450	450
	Right	150	150	150	150	150	150	450	450	450	450

Modulating sequence control for controlling multiple boiler installations
Programmable room thermostat
Tank sensor kit (80-280 only)
BMS control kit (0-10V) (fitted as standard on 320-560)

Outside sensor kit
Room sensor kit
Sequencer DHW sensor kit
Control interface kit (fitted as standard on 320-560)
Flow, return & gas header kit (320-560 only)
RS air duct connector (320/400 only)
Horizontal flue connector (320-560 only)
Vertical flue connector (320-560 only)