The solar thermal system STRATOS® 4S
ROTOSHIELD® WITH BOLLY® 1 PDC, for DHW
production, it’s composed of the compact solar
thermal system STRATOS® 4S ROTOSHIELD®
and the BOLLY® 1 PDC calorifier with fixed heat
exchanger.

CHARACTERISTICS OF THE STRATOS® 4S
ROTOSHIELD®
Frame structure of anodized marine grade
aluminum.
Support and fixing brackets in galvanized steel.
Capturing system consisting of tubes with Sydney
type vacuum technology with highly selective
coating and high vacuum grade.
Primary accumulation in stainless steel AISI 304.
DHW exchanger in stainless steel AISI 316L
suitable for drinking water according to 98/83/CE
and subsequent amendments.

CALORIFIER
Model BOLLY® 1 PDC with integration exchange
unit specific for heat pumps.
Internal Polywarm coating, suitable for drinking
water according to 98/83/CE and subsequent
amendments and DHW certifications ACS-SSICADVGW-
W270-UBA-WRAS.
Connections for integration of electrical heater.
Rigid insulation of polyurethane foam with high
thermal insulation. External PVC cover.
Tested in accordance with European standard EN
12897:2006.

WARRANTY
5 years - See general sales and warranty conditions