User manual APPLIED ENERGY XCELL 270 LONGLIFE DC

[. . . ] Standard Installation Install the unit as supplied in standard configuration: 2 spigots at the topside "left" of which one spigot is for intake of fresh air from the outside, the other for intake of the stale air from the house. 2 spigots at the topside "right" of which one spigot is for discharge of the stale air to the outside, the other spigot for the heated fresh air into the house. Duct Connections. When designing the system, reduce to smaller diameter ducts by using a 3-way splitter or efficiency will be reduced. [. . . ] The unit starts again fully automatically when the temp increases to 9°C. By pass operation - dependent on internal and external air temperatures. When the exhaust air/room air temperature exceeds +24°C the yellow LED illuminates. The exhaust air/room air temperature is compared with the outside temperature. If the outside temperature is under +24°C, the bypass flap is opened immediately and colder outside air flows directly into the dwellings. The bypass flap remains open until the exhaust air/room air temperature falls below +24°C. If both exhaust air and outside air temperatures exceed +24°C both LED's illuminate (yellow for exhaust air and orange for outside air). In this operating condition the bypass closes preventing the dwelling from warming up further (reverse acting heat exchanger). If the outside temperature cools down again under +24°C, the orange LED switches off and the bypass flap is opened again until the exhaust air/room air temperature falls below +24°C. Exhaust air temp in the cell falls below +3°C (freezing up danger). Outside/supply air fan switched off by a timer for 3 hours allowing only warm exhaust air to the heat exchanger. However if the exhaust temperature increases to +8°C the unit switches on again to heat recovery. Sequence of functions: In dwellings with room air dependent fire places the equipment is factory installed in such a way that the external supply air fan does not switch off, but opens the bypass flap allowing outside air directly into the living spaces. In this function the bypass remains opened for 3 hours and thus allows only warm exhaust air to the heat exchanger. However if the exhaust air temperature increases from +3°C to +8°C within 3 hours the bypass flap is closed automatically and the unit switches on again to heat recovery mode. Blue LED `defrost cycle' goes out. LED 1. IMPORTANT: For option 2 an electrical duct heater is recommended with a 1500W output. External/supply air LED illuminates green (constant) Motor 1 external/supply air runs at zero resistance (i. e. Exhaust/waste air LED illuminates green (constant) Motor 2 exhaust/waste air runs at zero resistance (i. e. [. . . ] · UK: The fan is guaranteed against defects for 5 years from the date of purchase. · If you have any problems, contact Xpelair's Head Office at the address shown below. Technical advice and service Customers outside UK ­ see international below. [. . . ]