Boss MX1-3HL, Operation & Maintenance Manual, Page: 7 / 28

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Rev 2.1 Oct-15 Page 7 / 28
IMPORTANT INFORMATION
Environment
 It is not anticipated that this equipment will be exposed to adverse
 environmental conditions without additional protection.
 Site the equipment in a frost free area.
 Ensure that 100 mm of clear access is available around the equipment with 500 mm clear access at the
front.

Flush the mains water supply pipe before connection to this equipment.
 An inline filter must be fitted to the inlet of the equipment if the mains water supply is suspected to contain
debris.
 Please refer to BS 7074 for the installation code of practice.

Do not use this equipment to fill a system unless otherwise stated; it is designed to ‘top-up’ a system in the
event of pressure loss due to deaerating and minor system leakage.
Safety
 Electrical installation must be carried out by a competent person
 WARNING
– LIVE TERMINALS WITHIN THIS EQUIPMENT
 Isolate the equipment before removing any covers
 Do Not make any electrical adjustments to the equipment unless it is isolated from the mains electrical
supply
 Do Not operate with the electrical covers removed
 Do Not alter any internal pipe-work, this equipment is tested prior to Dispatch.
 Do Not obstruct and ventilation fans or apertures
 Check supply voltage and overload protection is correct
Application
Automatic make up and pressurisation unit for sealed heating and cooling systems.
This equipment is designed to work in conjunction with an appropriately sized expansion vessel.
Cold Pressures
The unit is fully adjustable to provide a minimum static pressure of 0.7 bar(g) the maximum static
pressure is dependent on the pump set fitted. If in any doubt please contact your product supplier.