Camus Hydronics DFH/W2000 - Page 64

59
Alert 354: Abnormal Recycle Delta-T limit
This safety was breached as the inlet and outlet temperature difference exceeded 40
o
F. This is done to prevent damage to the
heat exchanger. Before this error appears, the combustion air blower will slow down in an effort to prevent such an error from
occurring.
Verify pump
motor load to
pump rated
load
Low current reading
- Purge air from water lines
- Check pump wiring
- Check pump wiring
Current reading
within spec
Check pump curves to
compare with flow and
pressure drops in Part 4
of DynaF
lam
e I&O
Out of spec
Upgrade Pump