Daikin UATYA-BBAY1 Installation, Use And Maintenance Manual page 47

SYMPTOM
Presence of oil on the discharge of
the safety valve.
Water leaks from the pump on first
start-up
We reserve the right to make changes without any prior notice.
UATYA
4P645202-1
LIKELY CAUSE
Opening of the valve due to failure of
the protective devices to operate.
Opening of the valve due to
overtemperature.
Bedding in the mechanical seal
POSSIBLE SOLUTION
Check that the high pressure
switches are working and, if
necessary, replace them.
The valve must be replaced.
Replace the valve and restore the
charge.
Pressurize the pump body 2 or 3
times by closing and opening the
delivery valve so as to correctly bed
in the seal.
Translation from original instructions
Packaged Rooftop
47