For The User - Nibe VPB 500 User's And Installer's Manual

For the User

MAINTENANCE
SAFETY VALVE (NOT SUPPLIED)
The water heater's safety valve sometimes releases a
little water after hot water usage. This is because the
cold water, which enters the water heater, expands
when heated causing the pressure to rise and the safety
valve to open.
The function of the safety valves must be regularly
checked, about four times a year, to prevent clogging.
To inspect the valve, open the safety valve manually
and check that water flows through the overflow pipe.
If this does not happen then the safety valve is defective
and must be replaced.
EMPTYING
If an immersion heater is installed, disconnect the
1.
power to this.
2. Shut off the incoming cold water.
3. Open the drain connection, or the drain valve (en-
closed) if installed.
During draining, air must be let into the water heater by
loosening a hot water connector (XL4) or opening a hot
water tap.
To ensure that the water heater drains completely, a
hose, or a pipe, with an outlet below the lowest level
of the water heater must be attached to the drain con-
nection or drain valve. When installed in a location that
is exposed to the risk of frost, the water heater must
be emptied whenever it is not in operation. Freezing will
result in the water heater bursting.
SERVICE
For service, contact the installer. Serial number (PF3)
(14 digits) and installation date should always be stated.
Only replacement parts supplied by NIBE may be used.
VPB 500, VPB 750, VPB 1000 | GB 17