Merco 27003 Service Manual

PARTS AND SERVICE MANUAL FOR

FRIED FOOD HOLDING STATION

FFHS-27000 SERIES

MODELS 27000, 27002, 27003, 27011

Note: Images shown include additional dividers.

MODELS 27007, 27012

Merco/Savory, Inc.

1111 North Hadley Road • P.O. Box 1229

Fort Wayne, Indiana 46801-1229

[phone] • [phone] Fax • Service Hotline [phone]

SEQUENCE OF OPERATION

Power is permanently supplied to the normally open contacts of the main relay. Power is also supplied

will cycle on and off to maintain the proper temperature.

to the normally open power switch. Closing the power switch supplies power through the normally
closed hi-limit thermostat to the electronic control board. Power is also supplied to the coil of the main
relay. When the main relay is energized, the contacts close supplying power to the contacts of the solid
state relay. When the electronic control is energized, voltage is supplied to the blower motor. The RTD
probe senses air temperature. The electronic temperature control supplies power to the solid state
relay. When the relay contacts close, power is supplied to the heating element. The solid state relay

SPECIFICATIONS

Item # Voltage Amps Watts Cord/Plug Net Wt.

27000 208 VAC 24.0 5500 6’ NEMA L6-30P 66 lbs.
27002 240 VAC 22.9 5500 6’ NEMA L6-30P 66 lbs.
27003 (Canada) 208 VAC 26.4 5500 6’ NEMA 6-50P 66 lbs.
27011 (CE) 230 VAC 23.9 5500 IEC Harmonized Cord 66 lbs.

Item Voltage Amps Watts Cord/Plug Net Wt.

27007 120 VAC 12.3 1450 5’ NEMA 5-15P 44 lbs.
27012 120 VAC 15.7 1850 5’ NEMA 5-20P 44 lbs.

MAY/05 2

WIRING DIAGRAM – MODELS 27000, 27002, 27003, 27011

WIRING DIAGRAM – MODELS 27007, 27012

MAY/05 3