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For more technical information, please visit remeha.co.ukGas 220 Ace cascadesSummary of in-line and back-to-back cascade options.CascadesWhen installing two to eight boilers, our product range includes systems that are very comprehensive and easy to install. The hydraulic and gas system can be put together entirely without welding, using screw connections, compression connections and flanges. The individual components of the cascade system are available for independent cascade installation.Boiler models Cascade layoutBoiler modulesSystem connections EN1092 %u2013 1Gas connections EN1092 %u2013 1Dimensions W x D x H (mm)All models In-line 1 DN125 PN16 DIN 2633 DN65 PN16 2,245 x 874 x 2,282All models In-line 2 DN125 PN16 DIN 2633 DN65 PN16 3,145 x 874 x 2,282All models In-line 3 DN125 PN16 DIN 2633 DN65 PN16 4,045 x 874 x 2,282All models In-line 4 DN125 PN16 DIN 2633 DN65 PN16 4,945 x 874 x 2,282All models Back-to-back 2 DN125 PN16 DIN 2633 DN65 PN16 2,245 x 1,483 x 2,282All models Back-to-back 3 DN125 PN16 DIN 2633 DN65 PN16 3,145 x 1,483 x 2,282All models Back-to-back 4 DN125 PN16 DIN 2633 DN65 PN16 3,145 x 1,483 x 2,282160, 200, 250 Back-to-back 5 DN125 PN16 DIN 2633 DN65 PN16 4,045 x 1,483 x 2,282160, 200 Back-to-back 6 DN125 PN16 DIN 2633 DN65 PN16 4,045 x 1,483 x 2,282160 Back-to-back 7 DN125 PN16 DIN 2633 DN65 PN16 4,945 x 1,483 x 2,282Gas 220 Ace cascade table dimensions DN 100Boiler models Cascade layoutBoiler modulesSystem connections EN1092 %u2013 1Gas connections EN1092 %u2013 1Dimensions W x D x H (mm)300 Back-to-back 5 DN125 PN16 DIN 2633 DN100 PN16 4,273 x 1,594 x 2,386250, 300 Back-to-back 6 DN125 PN16 DIN 2633 DN100 PN16 4,273 x 1,594 x 2,386200, 250, 300 Back-to-back 7 DN125 PN16 DIN 2633 DN100 PN16 5,173 x 1,594 x 2,386All models Back-to-back 8 DN125 PN16 DIN 2633 DN100 PN16 5,173 x 1,594 x 2,386Gas 220 Ace cascade table dimensions DN 150Notes: A technical clearance of at least 1,100mm is required at the front (service side) of the boilers.Refer to our Building Information Model (BIM) files for dimensional clearances around the cascade system.A minimum clearance of 100mm is required for the last boiler opposite the low loss header.A minimum clearance of 50mm is required at the back of the cascade boilers (In-line boilers only).88 Gas Boilers