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1. Introduction
These Installation instructions should be read carefully before installing the SpiraVac system and must be
used in conjunction with the Grant Spira Installation & User instructions supplied with the boiler.
Installation of the Grant Spira boiler and Grant SpiraVac system must only be carried out by a Grant
Approved Installer who has successfully completed the Grant Spira training course.
The Grant SpiraVac is a vacuum system for conveying wood pellets from a bulk store to the pellet hopper
located adjacent to the Grant Spira boiler. It is designed specifically for use with the Grant Spira wood
pellet boilers and should not be used with other wood pellet burning appliances. It is intended to convey
6mm diameter EN Plus A1 (BS EN ISO17225-2:2014) wood pellets only and should not be used for any
other application.
Grant Engineering UK Ltd shall not be liable for any injury or damage arising from the incorrect use of this
system. For correct usage, refer to these Installation and User instructions.
Installation of the Grant Spira wood pellet boiler, and the SpiraVac system, must be carried out by a
competent person in accordance with all current legislation, codes of practice and local by-laws relating
to the installation of solid fuel burning appliances.
The electrical installation must comply with the requirements of the Electricity at Work Regulations 1989
and BS7671:2008 - IET Wiring Regulations 17
th
Edition (including all amendments).
All installations of Grant Spira wood pellet boilers must comply with the relevant Building Regulations.
Summary of Contents for WPVKIT10
Page 12: ...12 Figure 3 6 SpiraVac operation flow diagram ...
Page 22: ...22 Figure 5 4 Vacuum unit wiring diagram ...
Page 24: ...24 Figure 5 6 Heating system controls S plan type system connection diagram ...
Page 25: ...25 Figure 5 7 Heating system controls Y plan type system connection diagram ...