Pentair AURORA CBV-S5, Инструкция по установке и эксплуатации

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MODELS CBV-S5 AND CBV-NPT5
5
ITEM
1040 SERIES
DATED MARCH 2015
Fault Possible Cause Remedy
Valve is leaking:
• At the bonnet / body joint.
Bonnet O-ring has been
damaged.
Remove the handle/stem assembly and replace with the
appropriate replacement part indicated in the table on page 3.
• At the pipe connection. If solder joint – the joint has
failed, or was not
soldered properly.
Resolder the connection and recheck for leakage.
If threaded – the connection is
not sufficiently tight, or
Tighten and recheck for leakage.
the valve was overtightened
during installation and the valve
body has cracked (fractured).
Remove and reinstall a new valve, being careful not to
overtighten.
Valve does not shut off
completely when closed
(hand tight).
The seat O-ring has been
deformed due to overheating
during soldering.
Remove the handle/stem assembly and replace with the
appropriate replacement part indicated in the table on page 3.
CBV-S5
CBV-NPT5
–
Fig. 9: These curves show
the pressure drop across the
balancing valves and are
for use in valve sizing. For
“pressure drop/flow” curves –
required for system balancing,
please refer to Fig. 8.
INSTALLATION TROUBLESHOOTING GUIDE
Venturi C
v
Performance Curves
CBV-S5
CBV-NPT5
Fig. 8: These curves are for balancing contractors’ use when balancing an HVAC system.
For pressure drop vs. flow across the entire valve, please refer to Fig. 9.
Fig. 7