Garland MCO-GD-10M, MCO-GS-10M, MCO-GD-10E, MCO-GS-10E service manual Electronic Controls E

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ELECTRONIC CONTROLS - “E”

Sequence of Operation (With the Oven Doors Closed)

1.Line Voltage is supplied to the Mode Switch, Door Switch and the Momentary Light Switch.

2.Set Mode Switch to COOK and close the oven doors. Line Voltage is sent from Mode Switch to power up the Controller and to the AUX relay on the controller. With the oven doors closed Line Voltage is sent to the 24 volt transformer.

3.Set desired temperature. The controller’s relays now close.

4.The AUX relay sends Line Voltage to the motor relay coil, closing the circuit to the Hi/Lo Fan Switch. The motor now operational causes the centrifugal switch to close and send the Neutral Voltage to the 24 Volt Transformer.

5.The bake relay completes the circuit from the 24 volt transformer to the ignition module and *ignition occurs, heating the oven.

Below is a simplified power diagram:

COOK

HIGH

O

HEAT

 

F

 

F

 

COOL

LOW

DOWN

 

- +

- +

START

CANCEL

TIMER

TIMER

TIMER

TEMP

0-12 HOUR

140-500F

 

 

 

 

24 Volt

 

 

 

 

 

Motor

 

 

 

 

Transformer

 

 

Centrifugal

Switch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24 V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thermostat

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ign. Module

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Door Sw.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Hi Speed

Motor Relay

Lo Speed

Neutral

AUX

Mode Sw.

COM6000

Light Sw.

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Contents Direct ON-SITE Service 1-800-451-1165 General Information GarlandOverview of Operational Sequences Table of ContentsSpecification & Dimensions Component Access of Functional Components Common Wire DiagramsGAS Convection Oven GAS Specifications Main Pilot Total Dimensions & SpecificationsPilot Orifice PRES. W/C AMT Orifice NAT PROInstrumentation Manual Controls MCalibration of Thermostat Weighting Thermostat Operation Calibration NotesElectronic Controls E Robertshaw COM6000 Controller Electronic Control Failure CodesTemp Operation of the Temperature Function Operation of the Timer FunctionOperation of the Pulse Function User Preference Offset for the Electronic ControllersTimer Resolution Changing To SET Hold TemperatureTo SET Oven Into Pulse Mode Change the HertzSecond Stage Main Burner Operation Safety Lockout TimeChain Programming Start Stage ENDYES Spark Stops When Pilot is LIT? Troubleshooting Ends S86 CheckoutStart YES Spark Across IGNITOR/SENSOR GAPCheck Grounding Check Spark Ignition CircuitControl Module Flame Sensor Circuit Examples of Unsatisfactory Pilot FlamesAppearance Cause Component Locations Top Front CenterRight Front Lower FrontTo Remove Doors from the Oven File NameDisassembly of the Left Door To Reinstall Doors onto Convection OvenInstalling and Adjusting Door Chain Disassembly of the Right Door w/o window Page Convection Oven Motor To Replace or Adjust Door Latch MechanismTo Replace Convection Oven Motor Assembly Drawing Below Assembly Page Common Wire Diagrams Page

MCO-GD-10M, MCO-GS-10E, MCO-GD-10E, MCO-GS-10M specifications

Garland has made a significant mark in the market with its range of high-efficiency heaters, particularly the MCO-GS-10M, MCO-GD-10E, MCO-GS-10E, and MCO-GD-10M models. These advanced heating solutions are designed for various applications where reliability, efficiency, and versatility are essential.

The MCO-GS-10M and MCO-GD-10M models are particularly notable for their robust construction and dual-fuel capability, allowing them to utilize natural gas or propane. This flexibility ensures that users can choose the most cost-effective fuel source, making them ideal for both residential and commercial use. These models are equipped with state-of-the-art ignition systems that guarantee a swift and trouble-free start every time, minimizing downtime.

On the other hand, the MCO-GS-10E and MCO-GD-10E models are electric heaters that offer an environmentally friendly alternative without compromising performance. These units are designed with high-efficiency heating elements that ensure rapid heating while consuming less energy. Furthermore, their sleek and modern design allows them to blend seamlessly into any indoor environment, making them suitable for use in homes, offices, and other professional settings.

All four models incorporate advanced safety features, including automatic shut-off mechanisms to prevent overheating. They are designed with user-friendly controls, allowing operators to easily set the desired temperature and adjust fan speeds based on their specific heating needs.

In terms of durability, Garland has ensured that the exterior of these heaters is constructed from high-grade materials capable of withstanding harsh conditions. This ensures longevity and reduces the need for frequent replacements, providing excellent value for money.

Moreover, the technology embedded within these models, such as multi-stage heating and precise temperature controls, offers an optimal heating experience. They are designed to be energy efficient, helping consumers save on utility bills while still maintaining comfortable ambient temperatures.

Overall, the Garland MCO-GS-10M, MCO-GD-10E, MCO-GS-10E, and MCO-GD-10M units exemplify the perfect blend of innovation, efficiency, and safety. These models cater to a diverse range of heating needs while being environmentally aware, making them an excellent choice for users seeking reliable and effective heating solutions. Whether it's for home use or in a commercial setting, Garland's heaters deliver excellent performance that stands the test of time.
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