PVI Industries Water Heater User Manual

MODEL NO. ______________
SERIAL NO. ______________

GENERAL INSTRUCTIONS

For the

INSTALLATION,

OPERATION and MAINTENANCE

of

DURAWATT EXR

WATER HEATERS

This water heater 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 or disabled
person unattended in a bathtub or shower.

PV500-33 05-2002 1 Section 33

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 water heater 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 water heater
should be located in an area where the
general public does not have access to set
temperatures.

DURAWATT EXR WATER HEATER

TYPICAL CONSTRUCTION

Figure 33-1

1. Status lights 7. Fuses
(GRN-Power on; YEL-Elements on; 8. Contactors
RED-Over temp or low water 9. Step-down transformer (optional)

2. Float low water cutoff 10. Primary heating element (NEMA 7)

3. Temperature limiting device 11. Operating thermostat
(Set at 190°F) (Set at 120°F, adjustable from 80°F to 185°F)

4. Temperature & pressure relief valve 12. Secondary heating element (NEMA 7)

5. Control enclosure 13. Drain

6. Supply & remote signal connections

PV500-33 05-2002 2 Section 33