Troubleshooting guide
PV500-23 04-2005 Section 23
4
POWER VT
®
BOILER
WARNING
This boiler is equipped with an
adjustable thermostat to control water
temperature. Hot water temperatures
required for automatic dishwasher and
laundry use could cause scald burns
resulting in serious personal injury
and/or death. The temperature at which
injury occurs varies with the person's
age and time of exposure. The slower
response time of disabled persons
increases the hazards to them. Never
allow small children to use a hot water
tap or to draw their own bath water.
Never leave a child unattended in a
bathtub or shower.
Since the thermostat temperature
setting could be set too high, adjust the
thermostat temperature setting to 125°F
or lower. Lower settings help reduce risk
of scald injury. Remember, no boiler
system will provide exact temperature at
all times. Allow a few days of operation
at this setting to determine the correct
temperature setting consistent with your
needs and remember, "Hotter water
increases the risk of scald injury." Also,
the boiler should be located in an area
where the general public does not have
access to set temperatures.
ELECTRICAL
1. Wiring to the unit should conform to the
National Electrical Code or the code legally
authorized in your locality. A fused disconnect
switch should be used for the boiler. When
required, PVI boilers are equipped with step-
down transformers located within the NEMA
enclosure. This allows for an effective single
point electrical connection to the boiler.
2. Be certain that high and low voltages are
connected to the correct points.
3. When remote on/off, air proving interlock, flow
switch or lead-lag enable operation is used,
remove jumper from FS and R2 and wire in
series.
4. A proper earth ground for this unit must be
provided. PVI recommends a single conductor
ground wire be pulled from the distribution
panel to the sub panel (or some similar type).
NOTE: Use only copper wiring of proper sizing for incoming service. Damage resulting from use
of aluminum wiring will be excluded from coverage under the warranty of this unit.