Applied Energy XCELL 270 LONGLIFE DC User Manual
Xcell 270 Longlife
DC wholehouse heat recovery unit
Installation and maintenance instructions
Xpelair Xcell 270 Longlife DC wholehouse heat recovery unit – Xcell 270, Xcell
270BP
Please leave this leaflet for the benefit of the user.
The Xcell 270 range is subject to continuous improvement. Xpelair reserves all rights to make alterations
at any time without prior notice.
IMPORTANT!
Please read these instructions carefully before attempting installation, and retain for future
reference.
• This appliance is intended for connection to fixed wiring
• Check that the electrical rating shown on the unit matches the mains supply
• All installations must be supervised by a qualified electrician
• Installations and wiring must conform to current IEE Regulations (UK), local or appropriate
regulations (other countries)
• The appliance must be sited away from direct sources of heat and not operated in ambient
temperatures in excess of 40°C
Inspection Upon Delivery
Always check the following.
• Correct product has been delivered.
• Product type identification plate.
• That the unit is undamaged.
Positioning the unit
Always position the Xcell 270 unit vertically and use a spirit level, this will ensure a correct and level
position of the condensate water sump.
The appliance must be sited away from direct sources of heat and not operated in ambient temperatures in
excess of 40°C
The appliance must be sited away from any source of water and out of reach of any person using a fixed
bath or shower.
If a grille associated with this appliance is sited in a room containing a fuel burning appliance the installer
must ensure that air replacement is adequate for both appliances.
The external grilles associated with the unit must be sited at least 600mm away from the flue of a fuel
burning appliance.
Do not site any associated internal grille in the vicinity of excessive levels of airborne oil or grease
without adequate filtration.
Installation Instruction
The Xcell 270 unit can be installed in two alternative ways to provide handed installation.
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.
Duct dimensions are to match the nominal 150 mm spigot. When designing the system, reduce to smaller
diameter ducts by using a 3-way splitter or efficiency will be reduced. Use only rigid ducting to connect
directly to the system.
Duct Insulation
The duct connecting the outside air intake point (grille) and the Xcell 270 unit must be insulated to
prevent condensation on the outside surface of the duct.
(In wintertime the temperature of the air inside the duct will be identical to the outside temperature).
The duct connecting the Xcell 270 unit and the air discharge point of the stale air to the outside must also
be insulated to prevent condensation on the outside surface of the duct. (During the wintertime the air
temperature inside this duct may come close to freezing temperature).
For best practice the air discharge and supply ducting on the “in-House” side of the Xcell 270 unit should
be insulated but need only be insulated if they pass through an unheated area.
If the ductwork passes through an unheated roof void or similar location, it should be insulated.
Condensate Drain
The appliance condensate drain must be fitted to the building drainage system.
The condensate drain-tube protrudes through a cavity at the bottom-rear of the steel housing of the Xcell
270 unit.
For correct functioning of the condensate drain system it is important to dispose of the condensate liquid
through the drain-tube via a water trap connected to the house sewage disposal system.
The drain-tube can be adapted to the application. It is important that the “vent-hole” in the drain-tube
remains positioned higher than the water level in the water trap in which the condensate drain-tube will
be placed.
Positioning
For wall mounting two metal mounting strips are provided on the rear of the unit. The outer strip is for
mounting on to the wall. Remove the screws that hold the mounting strips. Remove the outer strip and
refix the remaining metal strip to the unit.
Position and secure the ‘outer’ mounting strip level on to the wall using a spirit level. Hook the unit onto
the wall hanger. Fit the two self-adhesive rubber plugs (supplied with the unit), on the lower rear corners
of the Xcell 270 unit. This will correctly position the unit vertically to the wall.
Electrical Connection Box
The electrical connection box must be screwed to a wall or other secure fixing point adjacent to the unit
The supplied cable clamp must be fitted to the mains electricity supply cable. When using surface wiring
which is not contained in conduit, anchor the cables to the mounting surface along their length and
particularly adjacent to the switched connection unit which must have at least 3mm contact separation
and the connection box. Ensure that all cable glands are tight to prevent any strain being transferred to
electrical connections.
Electrical Connection Diagram
Ensure the mains electrical supply is switched off before commencing installation.
Power supply for the Xcell 270 unit will be 220-240V / 50Hz.
The appliance is Class 1 and it must therefore be earthed
Wiring to the appliance must be via a fused and switched connection unit incorporating a double pole
isolating switch with 3mm contact separation. A 3amp fuse should be fitted.
The Xcell 270 unit should be connected as the electrical connection diagrams below:
The Xcell 270 unit should be wired accordingly to obtain the desired speed:
From unit
Mains
From unit
Mains
From unit
Mains
Yellow /
Green
L N
Yellow /
Green
L N
Yellow /
Green
L N
Brown Grey Black Blue
Brown Grey Black Blue
Brown Grey Black Blue
LOW SPEED
MED SPEED
HIGH SPEED
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