The provided manual describes the Yoder Smokers YS640S pellet grill, an outdoor cooking appliance designed for smoking, baking, and grilling. This S-Series grill is equipped with an Advanced Control System (ACS) controller and FireBoard integration for precise temperature management and remote monitoring.
Function Description:
The YS640S is a versatile pellet grill that uses wood pellets as fuel to cook food. It can be set up for various cooking styles, including:
- Smoking: Achieved with the diffuser plate installed, access door in place, and standard round bar cooking grates. Temperatures range from 175°F to 275°F, with the variable displacement damper generally pushed in five inches for even heat distribution.
- Baking: Similar setup to smoking, with temperatures from 350°F to 400°F. The damper is also pushed in five inches for even heat.
- Direct Grilling: For searing, this setup requires removing the heat diffuser plate, setting the variable displacement damper to the full-open position, and installing optional GrillGrate® cooking grates on the left side of the cooker. Temperatures range from 350°F to 600°F.
- Indirect Grilling: For moderate temperature grilling (e.g., wings, chicken breasts), the heat diffuser plate remains in place, the access door is removed, the variable displacement damper is set to full-open, and optional GrillGrate® cooking grates are installed on the left side. Temperatures range from 275°F to 350°F.
The grill features an igniter for automatic startup, an auger system to feed pellets into the fire pot, and a combustion fan to maintain the fire. The ACS controller allows users to set and maintain desired cooking temperatures, monitor food temperatures with probes, and manage cooking programs.
Important Technical Specifications:
- Minimum Clearances: 18 inches (46 cm) from walls or combustible surfaces; 40 inches (102 cm) from overhead combustibles or covered patios.
- Power Supply: Requires a 120-volt, 15-amp GFCI-protected outdoor outlet for North America. Users outside North America must plug into an appropriate earthed outlet.
- Pellet Type: Food-grade wood pellets only. Heating fuel pellets are not to be used due to potential hazardous contaminants.
- Temperature Range: Capable of maintaining temperatures from 175°F for smoking up to 600°F for direct grilling.
- Igniter: Ceramic igniter for automatic pellet ignition.
- Connectivity: Bluetooth and Wi-Fi enabled via the embedded FireBoard system. Supports 2.4GHz wireless networks.
- Construction: 10-gauge cooking body.
- Temperature Probes: Two temperature probe jacks for monitoring food temperatures.
- Damper: Variable Displacement Damper for managing heat distribution.
Usage Features:
- ACS Controller:
- Power Button: Turns the grill on and off.
- Selection Buttons: Used to make menu selections.
- LCD Display Screen: Shows current temperature, set temperature, operating mode, and probe readings.
- Rotary Selector: Navigates menus, adjusts set temperature in 5° or 25° increments, and confirms selections.
- Indicator Light: Illuminates when power is on and during shutdown.
- Operating Modes: Heat-Up Mode (blinking upward arrow), Maintenance Mode (diamond), Cool Down Mode (blinking downward arrow).
- Start-Up Display: Options for "Start" (cooking functions), "Menu" (programs/settings), and "Prime" (manual auger operation).
- Main Menu: Access to Time Cook Program, Temp Cook Program, Custom Programs, WiFi settings, general Settings (Fahrenheit/Celsius, thermocouple calibration, component test), and About (controller info).
- FireBoard App Integration:
- Account Creation & Device Pairing: Download the free FireBoard app, create an account, and pair the cooker via Bluetooth. Android users must enable location services for Bluetooth pairing.
- Wi-Fi Configuration: Connect the cooker to a 2.4GHz Wi-Fi network via the app for remote monitoring and control.
- Dashboard: Provides a quick overview of current setpoint, internal temperature, and probe temperatures. Allows changing the pit's setpoint and naming probe ports.
- Alerts: Set up app alerts, SMS text messages, or email alerts for specific temperature thresholds.
- Temperature Visualization: View temperature data in basic or detailed chart formats.
- Multi-Cooker Management: Select between multiple paired cookers.
- Remote Shutdown: Shut down the cooker from the app (startup must be initiated from the control panel).
- Sessions: Records pit and probe temperatures throughout a cook, displayed as graphs.
- Programs: Create custom cooking plans with multiple steps, including Time Cook, Temp Cook, and Custom Drive Programs (combining setpoints, run-times, and probe temps).
- Device Settings: Change cooker name, access drive settings (shutdown), and view device log for detailed information.
- Current Temperature Notification (Android Only): Persistent notification displaying real-time temperatures.
- Manual Ignition: Step-by-step procedure for manually lighting pellets with a torch, starter gel, or stick if the igniter fails.
Maintenance Features:
- Cooking Grates: Clean with a cooker brush and coat with vegetable oil every three months or depending on use.
- Heat Diffuser Plate: Scrape clean with a plastic putty knife every three months or depending on use to remove grease buildup.
- Stainless Steel Burn Grate: Regularly check and clean combustion air holes with a wire brush or flat-head screwdriver. Inspect for proper fitment and correct shape if warped by heat (diagram provided for correction).
- Ceramic Igniter: Periodically inspect igniter assembly, tube, and rod for ash/debris and ensure the tube is tightly secured.
- Cooking Chamber: Inspect and clean every 7-10 cooks, paying attention to grease channels. Degrease with citrus-based solution at the beginning of the season. Ensure silicone seals are intact and repair if necessary (Permatex 81160 or Sure Bond SB-188 recommended).
- Grease Management Area: Visually inspect and scrape clean the grease drain and surrounding area.
- Exterior Painted Surfaces: Wash with mild soap and water to remove grease/oils. Periodically inspect and touch up scuffs/bare spots. Season exterior every six months with mineral oil or ACF-50 and run the pit at 375°F until absorbed.
- Pre-Grill Checklist: Includes removing and cleaning cooking grates, heat diffuser, burn grate, firebox (including igniter assembly), re-installing components, cleaning grease bucket, and inspecting hopper for foreign materials or damaged pellets.
- Onboard Diagnostics: Built-in test diagnostics for igniter, fans, auger, and thermocouple temperature reading to verify functionality and diagnose component failure.
- ACS Temperature Test: A 2-hour test to verify normal cooker function, requiring specific probe placement and full cleaning of the cooker.
- Custom Temperature Offset: Allows users to input an offset into the ACS controller to provide a more accurate display temperature compared to the lower cooking grate level. This is done after performing the factory temp test.
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