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Bonus Plus Instructions Tarm Biomass 1-800-782-9927 Version 11/14 Page 5
1.0 Introduction
1.1 Foreword
SAVE THIS INSTRUCTION MANUAL FOR FUTURE REFERENCE
Congratulations on your purchase of the HS Tarm Bonus Plus log wood boiler from
Tarm Biomass!
The Bonus Plus boiler is produced using the highest quality materials and a modern production sys-
tem. The use of high technology laser cutting and robotic welding system, accompanied by time hon-
ored European design, craftsmanship and attention to detail, results in a long lasting boiler with un-
matched fit and finish.
With proper installation, operation and maintenance your Tarm Biomass Bonus Plus log wood boiler
will provide years of safe, dependable, economic and earth friendly heating.
This manual contains paragraphs that require your special attention. These paragraphs are marked
with the symbols described below:
Warning: there is a risk of an accident of personal injury or serious damage to the property.
☼
Caution: there is a risk of damaging the boiler or its individual components.
1.2 Units of Measurement
Most hardware and fittings on the boiler are metric (all plumbing fittings are British Straight Thread).
In this manual the convention used for dimensions is that values are presented in English units, fol-
lowed by metric units in parenthesis, for example: 6” (152 mm).
Note: A conversion table between Centigrade and Fahrenheit is provided in Appendix A. In this
manual temperatures are presented first as degrees Centigrade then as degrees Fahrenheit in parenthe-
sis, for example: 80 °C (176 °F).
1.3 Installation and Warranty Requirements
It is strongly recommended that the installer resist the temptation to simply get started without reading
this manual. Hours of time and frustration can be prevented by a simple understanding of this product.
This manual has been written with much care and thought. We want the first time installer to find in-
stallation as simple as for the experienced installer. Time spent reading now will save more time in the
long run.
The Bonus Plus boiler must be installed with a thermal storage system capable of absorbing the
complete output of the boiler during periods when the building is not calling for heat. A means
for protecting the boiler against cold return temperatures must also be provided. Further infor-
mation on acceptable ways of meeting these warranty requirements is provided in Section 3.0,
Installation.
Introduction > Foreword
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