Merco Savory PD-4 User Manual
PARTS & SERVICE MANUAL
PD-4
“POP-DOWN” TOASTER
The PD-4 “Pop-Down” toaster is
revolutionary in design concept. It’s unique
principle allows finished product to gently
drop to the receiving pan. Operation is a
simple push-button procedure with full
control for the degree of toasting desired.
The solid state computer circuitry ensures
consistant results every time, no mater
how frequently the toaster is used.
The information in this manual will contain
part numbers and descriptions of
replacement parts along with illustrations
and guidelines for repairs.
Merco Savory, Inc.
1111 North Hadley Road
Fort Wayne, IN 46801
Service Hot Line: 800-701-2992
Fax: 260-436-0735
www.mercosavory.com
TABLE OF CONTENTS
SEQUENCE OF OPERATIONS............................................................................................ 2
WIRING DIAGRAM - 120V.................................................................................................... 3
WIRING DIAGRAM - 208V & 240V....................................................................................... 4
TROUBLESHOOTING GUIDE.............................................................................................. 5
REMOVAL / INSTALLATION / ADJUSTMENT
HEATER CARD........................................................................................................ 6
DOOR LINKAGE...................................................................................................... 7
LOWER DOOR......................................................................................................... 7
TOAST SUPPORT.................................................................................................... 7
UPPER & LOWER CHASSIS................................................................................... 8
COMPONENT TEST PROCEDURES
RELAY...................................................................................................................... 8
ELEMENTS............................................................................................................... 8
TOAST LIGHT.......................................................................................................... 8
TOAST BUTTON & RESET BUTTON..................................................................... 8
TIMER PERFORMANCE CHART......................................................................................... 9
INSTALLATION.................................................................................................................. 10
SPECIFICATIONS.............................................................................................................. 11-12
SEQUENCE OF OPERATIONS
Power is permanently supplied to the timer and the “push to toast” button. When depressing the
“push to toast” button, power is supplied through the timer(control board) to a normally open
relay, applying power to the heater cards along wiht the heat indicator light.
The heater cards operate at a constaant voltage and wattage. The hold time of the toaster
determines the lightness or darkness of the product and is adjusted by the light/dark control dial
on the front of the toaster.
When the heating sequence is complete, the timers open the normally closed upper and lower
solenoids, activating the linkages, opening the doors and allowing the product to drop down
into the receiving tray.
NOTE:
At any time during the toasting cycle, the circuit may be interrupted by pressing the reset but-
ton. This will stop the voltage and open the release doors.
WIRING DIAGRAMS
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