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PV500-17 05-2000 Section 17
4
MAXIM
MAINTENANCE AND SAFETY INSPECTIONS (continued)
Periodic Inspection of Operation Components (continued)
CAUTION: THE RELIEF VALVE IS A PRIMARY SAFETY DEVICE.
2. The temperature and pressure relief
valve may be checked by slowly lifting the
seat lever on top of the valve to determine
its condition for safe operation. The
openings inside the valve may become
restricted by a buildup of scale and
become inoperative. If the valve does not
open and close properly when tested, it
must be replaced. Replace the relief valve
with like kind or one meeting the
requirements stated on the rating decal
located adjacent to the relief valve.
3. A table of periodic safety inspections
is an attachment of this manual for ease of
reference by the building service technician
or licensed equipment operator. Since
water
heater designs vary, only some of these
listed inspections may be appropriate for
your particular model.
4. PVI strongly recommends the
recording of significant events, such as
maintenance or repair actions and safety
inspections, and encourage the
preparation of an event log for this
purpose. All recorded events should be
dated, fully described, and signed by the
individual performing the service, repair, or
inspection. (See Table 17-1, page 5 for
sample of Inspection Record.)
CALL YOUR PVI CUSTOMER SERVICE
REPRESENTATIVE IF YOU HAVE ANY
QUESTIONS. (1-800-433-5654)
Instructions for Taking Water Heater Out of Service
Extended shutdown of the appliance and
restarting are as follows:
A. Turn off all power and fuel supplies.
B. Drain and flush tank as previously
discussed.
C. Tag power switch(es) that fuel is off and
tank is empty.
D. Refill tank with water and turn fuel and
power switch(es) on to restart. Reset all
controls and conduct start-up of the
appliance as discussed in the previous
pages.
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
water heater control. Service wiring
connections of 120V, 1 phase, 60 Hz. are
located in the enclosure on the water
heater.
NOTE: Use only copper wire of proper
sizing for incoming service. Damage
resulting from use of aluminum wiring
will be excluded from coverage under
the warranty of this unit.