®
SERVICE MANUAL
ServeWell
WIRING DIAGRAM
®
SERVEWELL
OPERATION
All units come standard with a properly rated cord and plug. Power is controlled first by a double pole lighted switch. The
switch when closed allows power to the thermostats. The thermostats are a capillary bulb thermostat that will react to temperature
changes as transmitted to the bulb through the element casting. When the thermostats close, power is then sent to the high limit
switch. The high limit switch is normally closed. It will open if the temperature exceed 175° C ± 9° for safety. Power passing
through the high limit switch will then energize the element. The neutral wire (or secondary load wire in 208V or 240V systems)
from the switch is connected directly to the element.
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Item No. 21609 Rev. 0905