Frymaster 17BC Operators Manual

*819
6896A
17/8SMS/17/8BC/17/8C
Service and Parts
Pasta Magic
Frymaster, a member of the Commercial Food Equipment Service Association, recommends using CFESA Certified Technicians.
24-Hour Service Hotline 1-800-551-8633
APR 2012
NOTICE
IF, DURING THE WARRANTY PERIOD, THE CUSTOMER USES A PART FOR THIS MANITOWOC EQUIPMENT OTHER THAN AN UNMODIFIED NEW OR RECYCLED PART PURCHASED DIRECTLY FROM FRYMASTER/DEAN, OR ANY OF ITS AUTHORIZED SERVICE CENTERS, AND/OR THE PART BEING USED IS MODIFIED FROM ITS ORIGINAL CONFIGURATION, THIS WARRANTY WILL BE VOID. FURTHER, FRYMASTER/DEAN AND ITS AFFILIAT ES WILL NOT BE LIABLE FOR ANY CLAIMS, DAMAGES OR EXPENSES INCURRED BY THE CUST OMER WHICH ARISE DIRECTLY OR INDIRECTLY, IN WHOLE OR IN PART, DUE TO THE INSTALLATION OF ANY MODIFIED PART AND/OR PART RECEIVED FROM AN UNAUTHORIZED SERVICE CENTER.
DANGER
Improper installation, adjustment, alteration, service, or maintenance can cause
property damage, injury, or death. Read the installation, operating, and service
instructions thoroughly before installing or servicing this equipment.
DANGER
For your safety, do not store or use gasoline or other flammable liquids or vapors in the
vicinity of this or any other appliance.
DANGER
This equipment is intended for indoor use only. Do not install or operate this
equipment in outdoor areas.
DANGER
Do not operate this equipment unless it has been properly installed and checked by
qualified personnel.
DANGER
Do not operate this equipment unless all covers and access panels are in place and
properly secured.
DANGER
Do not attempt to repair or replace any component of this equipment unless power to
the unit has been disconnected.
DANGER
If the power supply cord is damaged, it must be replaced by the manufacturer or its
service agent or similarly qualified persons in order to avoid a hazard.
DANGER
Use caution when setting up, operating, or cleaning this equipment to avoid contact
with heated surfaces.
DANGER
Do not use water jets to clean this equipment.
ELECTRIC COOKER MODELS 17SMS, 17BC, 17C
TABLE OF CONTENTS
CHAPTER 1: General Information
1.1 Functional Description 1-1
1.2 Accessing Equipment 1-2
1.3 Replacing Components
1.4 Troubleshooting
1.4.6 Troubleshooting Guide 1-14
CHAPTER 2: Installation Instructions
2.1 Accessories
2.2 Wiring Diagrams
1-2
1-11
2-1
2-11
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ELECTRIC COOKER MODELS 17/8SMS, 17/8BC, 17/8C
CHAPTER 1: SERVICE PROCEDURES
1.1 Functional Description
The 17kW Pasta Magic Electric Cooker contains a 16.5-gallon (62.5-liter) stainless steel cookpot. The 8kW unit has a 8.75 gallon (33 liter) cookpot. The water in the cookpot is heated by a pair of
heating elements. Electrical power to the elements is controlled by a solid-state SMS III Spaghetti Magic computer specifically modified for this application. NOTE: The SMS III computer used in
the Pasta Magic is identical in appearance to the SMS III computers used in other model lines, but differs internally. The SMS is equipped with a basket lift, and also features automatic filling (AutoFill) and automatic skimming (AutoSkim). This model also has a swing-away jointed faucet. The SMS and BC models have an attached 16.5-gallon (84.1-liter) rinse tank.
Turn the Master Power Switch ON and press the computer Power switch. A logic circuit checks the water level by looking for a ground at the upper water-level sensor. A normally closed solenoid valve opens if no ground is seen, indicating water is below the sensor, and water enters the cookpot. The unit enters the Simmer mode when the heating elements are covered (indicated by grounding of the low-water sensor). The cookpot continues to fill until water reaches the upper water-level sensor and the solenoid closes. The cooker stays in Simmer mode until the Boil mode switch is pressed or the unit is turned off. The water solenoid valve opens when the water level is below the upper water-level sensor.
Logic circuits in the computer monitor the temperature and cycle power on and off to maintain the simmer setpoint. The cooker also has a high-limit safety. If the cookpot fails to refill and the water level drops below the low-water sensor, the high-limit will open, cutting off power to the elements, when the element temperature reaches 400 ±15ºF.
Pressing the Skim switch activates the AutoSkim feature. A logic circuit in the computer opens the solenoid valve in the water supply line for three seconds every minute until the option is turned off by again pressing the Skim switch.
The operator enters a cooking time by pressing the number pads on the computer. The computer counts down the cook cycle time when the Start switch is pressed. When the computer times out, an alarm sounds briefly, then the timer reverts to the last time entered.
Logic circuits in the computer also activate the basket lift motors when the Start switch is pressed, lowering the basket into the cookpot. A pair of motors drives the basket lift arms down until a cam attached to the left motor loses contact with a roller-activated microswitch and power to the motors is cut. When the computer times out, the logic circuits reverse the switch positions so that the motor circuit is again completed and the motors are restarted, raising the basket from the cookpot. The cam again makes contact with the microswitch at the raised position, cutting power to the motors and stopping the lift in the up position.
1-1
1.2 Accessing Equipment for Servicing
DANGER
Moving this equipment while it is filled with hot water may cause spilling or
splattering of the hot water. Always drain the cookpot before attempting to relocate
this equipment for servicing.
1. Disconnect the unit from the electrical power supply and from the water supply.
2. Remove any attached restraining devices.
3. Relocate the unit for service accessibility.
4. After servicing is complete, reconnect the unit to the water supply, reattach restraining devices,
and reconnect the unit to the electrical power supply.
1.3 Replacing Equipment Components
1.3.1 Replacing the Computer
1. Disconnect the cooker from the electrical supply.
2. Remove the two screws in the upper corners of the control panel and swing the panel open
from the top, allowing it to rest on its hinge tabs.
3. Disconnect the wiring harness from the back of the controller.
4. Disconnect the ground wire from the controller. Remove the controller by lifting it from the
hinge slots in the frame.
5. Reverse the procedure to install a new controller.
Computer wiring harness.
1-2
1.3.2 Replacing Fuses
1. The 15-amp fuses are located in holders mounted on front of the box.
2. Remove the cover and replace the fuse.
1.3.3 Replacing Electronic Components Other than the Computer
1. Drain the cookpot and disconnect the cooker from the electrical power supply.
2. Remove the covers from the component box.
3. On the component to be replaced, make a note of the wiring connection points.
4. Disconnect the wires and remove the failed component. Install the replacement component and
reconnect the wiring in accordance with the notes made in Step 3 or with the wiring diagram on the door of the unit.
5. Replace the component box covers, being sure to reconnect the ground wire. Reconnect the
cooker to the electrical power supply.
1.3.4 Replacing a Heating Element
1. Drain the cookpot and disconnect the cooker from the electrical power supply. Disconnect the
unit from the water supply at the rear of the cooker. Remove the basket lift arms from the unit.
2. Reposition the cooker to allow clear access to the rear of the unit. Remove the upper and lower
basket lift panels.
3. Unplug the element connector from the rear of the
component box. Depress the locking tabs on each side of the connector and extend the connector to release the element leads (see photo at right). Pull each of the leads out of the connector, being careful not to damage the connector in the process.
4. If the bundle of element leads is enclosed in a fiberglass
insulating sheath, cut the wire ties securing the sheath in place, and remove and discard it; it is no longer required. If replacing the left element (as viewed from the front of the cooker), cut the metal wire ties that secure the high-limit thermostat to the element, being careful not to bend the thermostat in the process.
5. Remove the brass nuts that secure the element in the cookpot and lift the failed element from the
cookpot. Recover the Teflon washers from the failed element for use on the replacement.
1-3
Remove these nuts to remove
element from cookpot.
Standoffs
6. Position the replacement element in the cookpot with the standoffs on the bottom of the cookpot.
Thread the element leads through the Teflon washers recovered from the failed element. Secure the element in place with the nuts removed in Step 5.
7. If the left element (as viewed from the front of the cooker) was replaced, secure the high-limit
thermostat against the inside of the leg of the element with two metal wire ties.
8. Insert the pins on the element leads into the element connector in accordance with the illustration
below. The insulation on the lead will be flush with the face of the plug when properly positioned. When all leads are positioned correctly, close the connector and verify that the tabs are locked in place. Each element lead is marked with a number that corresponds to the hole in the connector into which it should be inserted. The right element (as viewed from the rear of the unit) uses the 6-pin connector; the left element uses holes 1 through 6 of the 9-pin connector.
Note "D" pin and "pip" indentifying Hole 1.
Lead 1
Lead 3
Note "D" pin and rib indentifying Hole 1.
9. Bundle all six element leads together and secure with plastic wire ties close to the element and
connector, and in the middle.
10. Reverse Steps 1 through 3 to complete the procedure.
1.3.5 Replacing the High-Limit Thermostat
1. Drain the cookpot and disconnect the cooker from the electrical power supply. Disconnect the
unit from the water supply at the rear of the cooker. Remove the basket lift arms from the unit and cut the metal wire ties securing the thermostat tube to the element.
1-4
2. Reposition the cooker to allow clear access to the rear of the unit. Remove the upper and lower
basket lift panels.
3. At the rear of the cookpot, loosen the small compression nut, and then unscrew the large fitting
from the cookpot. Pull the thermostat tube out through the rear of the cookpot.
Loosen the small
compression nut first.
Unscrew the large fitting
only after loosening the small compression nut.
4. Detach the high-limit thermostat leads (5C and 8C) from the thermostat. Remove the two screws
securing the thermostat to the mounting bracket and remove the thermostat assembly from the
cabinet. (NOTE: It is not necessary to remove the bracket.)
5. Loosen the small compression nut in the large fitting on the replacement thermostat so that the
large fitting will move freely on the capillary tube (the thin, flexible tube). Carefully insert the replacement thermostat into the cookpot, being careful not to bend the thermostat tube. Position the tube along the inside of the left leg of the element (as viewed from the front of the cooker) and secure it in place with two metal wire ties. Apply thread sealer to the large fitting and screw the fitting securely into the cookpot. When the large fitting is tight, pull gently on the capillary tube to remove any slack, then screw the small compression nut into the large fitting and tighten.
6. Coil the capillary tube as necessary to achieve a neat installation and attach the terminal block to
the mounting bracket using the screws removed in Step 4. Connect thermostat lead 5C (black) to the normally closed (NC) terminal and 8C (white) to the common (C) terminal.
Common (C) Terminal
(Note open side.)
Normally Closed (NC) Terminal
(Note closed side.)
7. Reverse Steps 1 and 2 to complete the procedure.
1.3.6 Replacing a Water-Level Sensor in 17kW Unit
Drain the cookpot and disconnect the cooker from the electrical power supply. Disconnect the sensor lead from the sensor, remove the nuts securing the sensor in place, and remove the sensor. Install the replacement sensor as illustrated below and reconnect the lead.
1-5
Insulator must seat in hole before nut is tightened.
Inside of cookpot.
1.3.7 Replacing the Temperature Probe
1. Drain the cookpot and disconnect the cooker from the electrical
power supply.
2. Remove the three screws along the upper edge of the control
panel and open the panel by allowing it to swing downward.
3. Disconnect the 15-pin connector from the rear of the computer
Testing Probe Resistance
A properly operating probe should produce these resistances at these temperatures:
552 @ 60°F (16°C) 665 @ 100°F (38°C) 1000 @ 212°F (100°C)
and, using a pin pusher (such as Frymaster P/N 806-4855), push out the temperature probe (red and white) leads from positions 13 and 14 on the connector.
4. Remove the temperature probe by unscrewing it from the front of the cookpot.
5. Apply thread sealer to the replacement probe and screw it securely into the cookpot.
6. Insert the red probe lead into position 13 of the 15-pin connector and the white lead into position
14. Pull gently on each lead to ensure it is firmly seated.
Insert red lead into position 13.
Insert white lead into position 14.
7. Reattach the 15-pin connector to the rear of the computer, close the control panel, and replace the
three screws removed in Step 2.
1.3.8 Replacing a Water Level Sensor or the Temperature Probe in 8 kW Unit
1. Drain the cookpot and disconnect the cooker from the electrical power supply.
2. Remove the basket lift arm by lifting it straight up from the lifter rod. Remove the probe cover
by lifting it straight up from the probe block.
1-6
3. At the rear of the unit, remove the two screws securing the access panel and remove the panel.
Disconnect incoming
water lines from nipples.
Remove these two screws
and remove the access panel.
If replacing a water level sensor:
Remove its Keps nut to disconnect the lead.
If replacing the temperature probe:
Mark the wiring harness leads and disconnect the probe leads at the push on connectors.
Remove the retaining screw from the sensor flange and pull the sensor from the probe block.
Remove the screws from the probe bracket and push the probe out the back of the probe block.
4. If replacing a water level sensor:
a. Disconnect the lead by removing the keps nut holding it in place. b. Remove the screw in the sensor flange. c. Carefully pull the failed sensor from the probe block and replace with the new sensor. d. Reattach the lead and reverse Steps 1-3 to complete the procedure.
5. If replacing the probe:
a. Mark the wiring harness leads and disconnect them from the probe leads at the push-on
connectors.
b. Remove the two screws in the probe bracket. c. Carefully pull the probe from the probe block and replace with the new probe. d. Reattach the leads and reverse Steps 1-3 to complete the procedure.
1.3.9 Replacing the Pressure Regulator or Solenoid Valve
1. Drain the cookpot and disconnect the cooker from the electrical power supply. Turn off or
disconnect the water supply to the cooker.
2. Loosen the compression fittings on the water lines running to and from the regulator and remove
the regulator from the unit. (NOTE: If the cooker is equipped with the optional Autofill feature,
the solenoid valve is installed between the regulator and the cookpot. If that is the case, disconnect the solenoid leads and remove both the regulator and solenoid valve from the unit.)
1-7
Optional Solenoid Valve
Compression Fitting
Regulator must be rotated
to clear drain plumbing.
Compression Fitting
3. If replacing the regulator, adjust the replacement regulator output pressure to not more than 40
PSI (28.15 kg/cm2) before installation in the cooker.
4. Recover the fittings from the failed component (regulator or solenoid valve) and install them on
the replacement, using thread sealer on all connections.
5. Reverse Steps 1 and 2 to complete the procedure, being sure to apply thread sealer to all
connections. NOTE: The regulator must be rotated approximately 45 degrees to clear the drain
plumbing (see illustration at Step 2).
1.3.10 Replacing the Water Faucet
1. Drain the cookpot and disconnect the cooker from the electrical power supply.
2. Turn off the water supply to the cooker and disconnect the incoming water lines where they
attach to the stubs at the rear of the cooker.
3. Remove the two screws securing the access panel in place and remove the panel.
4. Disconnect the water supply line at the compression fitting where it attaches to the water inlet
manifold. Remove the screws from the faucet mounting plate and lift the faucet assembly from the unit.
1-8
Remove screws to remove the
faucet mounting plate.
Remove this nut to separate the
faucet from the mounting plate.
Loosen this nut to separate
the faucet from the water
Disconnect this
compression fitting.
inlet manifold.
5. Separate the faucet from the water inlet manifold and mounting plate as shown in the illustration
at Step 4.
6. Reverse Steps 1-5 to complete the procedure.
1.3.11 Replacing a Basket Lift Motor or Microswitch
1. Disconnect the cooker from the electrical power supply.
2. If rigid water connections have been used, disconnect the cooker from the incoming water
supply.
3. Remove the basket lift arms from the lifter rods and then reposition the cooker to gain access to
the rear. Remove the upper and lower basket lift rear panels.
4. Unplug the basket lift wiring harness from the lower 6-pin connector on the component box. (To
do this, you must reach around behind the component box from the front of the cooker.)
Disconnect basket lift wiring harness from this connector.
5. Disconnect the basket lift link from the lifter cam (bell crank) assemblies one at a time. When
the link is disconnected from a cam, slip the corresponding lifter rod down and out of the assembly (see illustration).
1-9
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