Frymaster Super Marathon Series manual Complete System Check, System Resistance Check

Page 15

ROBERTSHAW-UNITROL 7000 SYSTEM CHECK

1.Complete System Check

With thermostat contacts closed and gas cock dial in the “ON” position, the main burner should ignite. Measure the reading between the 2 & 3 terminals. If the reading is more than 100MV, replace the gas valve.

2.System Resistance Check

With thermostat contacts closed and main burner “ON”, measure the millivolt reading between the 1 and 3 terminals. The reading should be less than 80MV. If not, recheck the thermostat leads and connections. Replace with new or heavier gauge wires if necessary. If the reading is still greater than 80MV, replace the thermostat.

3.Automatic Pilot Dropout Check

With the thermostat contacts open, hold the gas cock knob depressed with the pilot lit until the maximum millivolt output is observed between the 1 and 2 terminals. Then extinguish the pilot and observe the meter. The sound of the pilot magnet dropping should be audible. This dropout should occur between 120MV and 30MV. If it occurs outside these limits, change the gas valve.

 

 

TH

 

TH

 

 

 

TP

 

 

 

 

 

 

 

THTP

1

 

 

3

TH

 

 

 

2

 

 

 

 

 

TP

TP

 

 

 

 

 

 

Millivolt Operator

Terminal Panel (Robertshaw)

 

Test

 

 

Meter

 

 

Meter Leads

 

 

Acceptable

 

 

 

 

 

 

 

 

 

 

 

 

Setting

 

 

On Terminals

 

 

Results

 

 

 

 

 

 

 

 

 

 

1

 

 

MV

 

2

&

3

 

 

<100MV

2

 

 

MV

1

&

3

 

 

<80MV

3

 

 

MV

1

&

2

 

 

30-120MV

HONEYWELL SYSTEM CHECK

1.Complete System Check

With thermostat contacts closed and gas cock dial in the “ON” position, main burner should ignite. If not, measure across terminals 2 and 3 as indicated in the diagram. If the reading is more than 180MV, replace the gas valve.

2.System Resistance Check

With thermostat contacts closed and main burner “ON”, measure the millivolt reading between terminals 1 and 3 as indicated in the diagram. The reading should be 220MV or less. If not, recheck thermostat leads and connections. Replace with new or heavier gauge wires if necessary. If the reading is still greater than 220MV, replace the thermostat.

3.Automatic Pilot Dropout Check

With the thermostat contacts open, hold the gas cock knob depressed with the pilot lit until the maximum millivolt output is observed between terminals 1 and 2. Then extinguish the pilot and observe the meter. The sound of the pilot magnet dropping should be audible. This dropout should occur between 110MV and 36MV. If it occurs outside these limits, change the gas valve.

4

 

 

 

 

1

 

TH

 

 

PP

 

3

TH

 

 

PP

2

 

 

Millivolt Operator

 

 

 

 

Terminal Panel

 

 

 

 

(Honeywell)

 

 

Test

Meter

Meter Leads On

Acceptable

Setting

 

Terminals

 

Results

 

 

 

1

MV

2

&

3

<180MV

2

MV

1

&

3

<220MV

3

MV

1

&

2

36-110MV

1-10

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Contents Hour Service Hotline Super Runner and Super Marathon SeriesMAY Page Iii Table of Contents Parts List Functional Description NON-CE Altitudes of 2000 feet or lessCE only Altitudes of 2000 feet or less Thermostats Pilot Ignition SystemCleaning the Gas Valve Vent Tube Accessing Fryers for ServicingCalibrating the Operating Thermostat Check Burner Manifold Pressure Adjusting the Pilot Flame Replacing Fryer ComponentsReplacing the Operating Thermostat Replacing the Operating Thermostat Replacing the Frypot Replacing the High-Limit ThermostatPilot Failures Troubleshooting and Problem IsolationComplete System Check System Resistance CheckAutomatic Pilot Dropout Check Pilot Fails to Light Improper Burner Functioning Filtration Problems Leaking Current Production Units with Honeywell Gas Valve Non-CE Wiring DiagramsCurrent Production Units with Honeywell Gas Valve CE Current Production Units with Robertshaw Gas Valve After May Optional UFF Filtration Wiring DiagramChannel, Base- Front & Rear Non-Filtration Single Fryers Cabinetry Components, Single FryersSuff Base Components- SM Series With Suff Filtration Side Panel, LeftSide Panel, Right Panel, Outer Door- SM20G Assembly 106-2482SP Door Assembly ComponentsCabinetry Components, Multi-Battery Frying Systems Base Channel, Front & Rear- SM220G, SM50G See .1 ForAdditional Single Fryer Base Channel Components Fluecap, SM20/20/50G AccessoriesDean Millivolt GAS Fryers Parts List Thermostat, Sunne Use 807-1692 for CE 1 SM220 and SM20/20/~ Systems Frypot and Burner System ComponentsFlue Assembly- SM20G SR Series, SM35G, SM40G and SM50G Systems Shield, Burner Heat- SR52G, SM50 Burner, Right- SR38G, SR42G, SM35G, SM40GBurner, Center- SR38G, SR42G, SM35G, SM40G Burner, Left- SR38G, SR42G, SM35G, SM40G106-0954SPFlue Assembly- SM35G, SM40G 25 106-1742SPFlue Assembly- SR52G, SM50GFlue Assembly- SR38G 106-0696SPFlue Assembly- SR42GSM80G Shown 3 SR62, SM60G and SM80G SystemsValve, Trailing Pilot- SM60G, SM80G, SR62G adjustment valve Frypot- M/S- SM80G Prior To 10/99 obsolete useFrypot- S/S- SM60G, SR62G Use 823-3511SP for SM160G Flue Assembly- SM60G, SR62G Flue Assembly- SM80GOil Drain Manifold Componets Drain Valve Components Oil Drain Manifold, Drain Flush and Drain Valve ComponentsPlace Over Flush Oil Drain Line 2 3 Oil Drain Manifold, Drain Flush & Drain Valve ComponentsOil Return Manifold Components Fryers with 1½ Drains Oil Return Manifold Components810-0051 200-1143 809-0877 106-2568SP Not Illustrated Oil Return Manifold Components Fryers with 3 Drains Oil Return and Oil Flush Components Fryers with 1½ Drains Oil Return and Oil Flush ComponentsOil Suction Start Fitting Microswitch Bracket Assembly, Oil ReturnOil Return and Oil Flush Components Fryers with 3 Drains Suction Manifold Assembly Oil Suction Assembly1 SM50 and SM60 Series Fryers Except Ihop Under Fryer Filter UFF Components2 SM50 Series Fryers, Ihop UFF 50 with Filter Leaf 3 SM80 Series Fryers 1 SM50 Series Fryers Single Under Fryer Filter Suff Components2 SM60 and SM80 Series Fryers This page Intentionally Left Blank Service Hotline
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