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Y1-06-0209G 6
SECTION 3 – HOW TO DETERMINE HRU EXPIRATION
DATE
The ACR HydroFix™ HRU is a replaceable part and, as such, has
dating associated with it. The HRU must be replaced two (2) years
from the install date or four (4) years from the date of manufacture,
whichever is less.
The HRU has a calendar on its top side; the calendar should be marked
with the expiration date at the time of installation, according to the
following instructions.
Date of Installation Example:
Date of installation of New HRU or
first installation of EPIRB including
new HRU: August 1, 2009.
This unit will need to be replaced in
August 2011.
Mark off “AUG 8” and “2011” on the
HRU date calendar
Date of Manufacture Example:
On the bottom of the HRU a date of
manufacture is pin stamped: 0808.
This unit will need to be replaced
in August 2012.
Mark off “AUG 8” and “2012” on the
HRU date calendar
Figure 2