NORTH / 2KG Mill City Roasters, LLC. 1050 33rd Ave SE Minneapolis, MN 55414 Phone: +1 (612) 886-2089 Email: sales@millcityroasters.com Online: www.millcityroasters.com
MILL CITY ROASTERS GRAPHICAL GUIDE SERIES 2016 Mill City Roasters, LLC. 2 PART ONE
TABLE OF CONTENTS PART ONE ROASTER SPECIFICATIONS 4 MACHINE OVERVIEW 6 SPACE PLANNING 12 VENTING 14 PART TWO GAS ELECTRICAL PHIDGET WIRING CONTROL PANEL OVERVIEW TEMPERATURE SETTINGS ARTISAN SET-UP PART THREE IGNITION SEASONING ROAST CLEANING & MAINTENANCE IMPROVING YOUR COFFEE ROASTING TECHNICAL SUPPORT WARRANTY PART ONE 3
ROASTER SPECIFICATIONS 2KG GAS COFFEE ROASTER Model: TJ-072 Nominal Capacity: 2 Kilograms Manufacturer: North Coffee Equipment Co. LTD, Shenzen, China Distributor: Mill City Roasters, Minneapolis, MN, USA Current Certifications 4 PART ONE
Dimensions Roaster Dimensions Roaster Weight Chaff Collector Dimensions Chaff Collector Weight Net/Gross Weight Crate Dimensions (one crate) Drum Thickness Drum Diameter/length Drum Construction Cooling Tray Diameter Cooling Tray Stirring Arm Length 33.9 x 27.6 x 3.9 in (860 x 700 x 1000 mm) 220.5 lb (100 kg) 30.7 x 13.4 x 17.7 in (78 x 34 x 45 cm) 44.1 lb (20 kg) 264.6 / 352.8 lb (120 / 160 kg) 47.2 x 43.3 x 45.3 in (1200 x 1100 x 1150 mm) 0.2 in (4 mm) 8.6 / 10.6 in (218 / 270 mm) 430 Stainless Steel, Welded 12.4 in (315 mm) 5.1 in (130 mm) Capacity / Output Average Roasting Time Production 15 minute batch 17.6 lb/hr, 141.1 lb/day (8 kg/hr, 64 kg/day) Power Roaster Voltage/Frequency Step-up Transformer Drum Motor Exhaust Fan Motor Exhaust Fan Max Airflow Cooling Fan Motor Cooling Tray Stirring Motor Single phase phase 220v, 15 amp service 50-60hz 120v to 220v, 1000w 45w 50w 70 m3/h 50w 15w Gas Heating Mode Natural Gas -Or- Propane Max BTU 30,000 Burner Control Ball Valve Gas Connection 3/8" NPT Typical Chaff Collector Exhaust Temp 300f Recommended Temp Controller Limit 455F (about 30 seconds into rolling second crack) Max Gas Usage 1.1 lb/hr (0.5 kg/hr) Data Logging USB Logging Interface Phidget 1048 Logging Thermocouples BT, ET, Incoming Air PART ONE 5
MACHINE OVERVIEW VISUAL GUIDE TO ROASTER, CHAFF COLLECTOR & COOLING TRAY FAN ROASTER - TOP VIEW SCALE 1 = 1-0 6 PART ONE
ROASTER - FRONT SCALE 1 = 1-0 PART ONE 7
8 PART ONE ROASTER - LEFT SIDE (CONTROL PANEL SIDE) SCALE 1 = 1-0
ROASTER - REAR SCALE 1 = 1-0 PART ONE 9
10 PART ONE ROASTER - RIGHT SIDE SCALE 1 = 1-0
TOP SIDE CHAFF COLLECTOR SCALE 1 = 1-0 PART ONE 11
SPACE PLANNING CONSIDERATIONS WHEN PLACING YOUR ROASTER The SPACE PLANING portion of this guide references the two free-standing components included in this model (Roaster, Chaff Collector), the venting connections between those components along with suggestions for venting your system to termination (typically outdoors). Beyond these components, users will likely require space for their own set-up during the roasting process including containers for green coffee and roasted coffee, stand/desk for a laptop, stools, work table, vacuum for removing chaff from chaff collector, scale, etc. When referencing the minimum space requirements we suggest, please adjust as needed for your own roasting process. On the next page is a suggested layout of the Roaster and Chaff Collector. Although other layouts are workable, this option is derived by prioritizing the following variables: (1) connecting the exhaust of the Cooling Tray Fan with the main exhaust flue above/beyond the Chaff Collector to prevent multiple penetrations in your roof/walls, (2) avoiding sharp bends/angles in all the vent lines to promote good air flow and cleaner vents by spreading equipment apart, and (3) providing clearance, access and reachability to different parts of the equipment that are required for safe operation. The venting diagrams and specified venting parts in the pages beyond are based on this arrangment. Deviations from this arrangement due to space constrainst will require modification of those specifications. Please contact Mill City Roasters if you require assistance in customizing your layout in your space. rear of all parts of the roaster. 3. The intake port on the Chaff Collector shall be within 12-60 of the exhaust port on the Roaster (typically at the rear) with minimal angles in the venting connecting the two ports. 4. Chaff Collector Access: Maintain access to doors of chaff collector and clearance to allow for easy (and frequent) removal of chaff. 5. Blast Gate: When connecting the exhaust of the Cooling Tray Fan to the exhaust flue above/beyond the Chaff Collectior, we suggest using a blast gate in that venting line. This prevents back flow of roast exhaust into the fan. This will require the user to open the blast gate when the Cooling Tray Fan is in use and should be within reach from the left side of the roaster and Control Panel. 6. We suggest venting components have Quick Release features to allow for venting to be removed for cleaning and to provide clear access to the roaster interior and motors as required for maintenance. Space Planning Guidelines 1. Check your local municiple building code for regulations regarding the placement and venting of combustible production machinery. The requirements of your local authorities will govern in the event they exceed or contradict the recommendations made in this guide. 2. Clearance to combustibles: Maintain 24 clearance to all combustibles at sides and 12 PART ONE
SPACE PLAN OPTION - TOP VIEW SCALE 1/2 = 1-0 PART ONE 13
VENTING PORTS, PARTS & LINES Port/Vent Line Information: Port Location Diameter Length Vent Line # Roaster Exhaust Rear, off left side 2 7/8 7/8 1 Chaff Collector Intake Upper right 2 15/16 4 1/4 1 Chaff Collector Exhaust Top, center 6 1/4 2 3 Cooling Tray Fan Exhaust Low, left side, toward front 2 7/8 7/8 2 Venting Parts List: VENT LINE # 1 2 3 PART NORDFAB ITEM # DESCRIPTION MATERIAL NOTE A SS 304 B SS 304 C SS 304 D SS 304 E SS 304 F SS 304 G SS 304 H SS 304 I SS 304 J SS 304 K SS 304 L SS 304 M SS 304 N SS 304 O SS 304 Connection options for vent parts: 1) Welding 2) Pipe sealant (as they should be a snug fit) 3) High temp tape (least preferred) 14 PART ONE
VENTING DIAGRAM - TOP VIEW SCALE 1 = 1-0 PART ONE 15
16 PART ONE VENTING DIAGRAM - RIGHT SIDE SCALE 1 = 1-0
VENTING NOTE CONNECTING COOLING TRAY FAN EXHAUST TO MAIN EXHAUST/FLUE ABOVE CHAFF COLLECTOR PART ONE 17
GAS & ELECTRICAL Natural Gas users may want to have their gas pressure measured prior to their roaster arriving. If the gas pressure is below 10 of water column, they will be making modifications to the burners on their roaster which will require a Wire Size Drill Bit Set, #61-80, a 1/4 chuck adaptor and a drill. Electric: The 500g, 1KG, 2KG, and 3KG Gas Roasters operate on 220v service but allow for the use of the transformer to step up to 220v from 120v service. All Electric Roasters and 6KG, 10KG & 15KG Gas Roasters require dedicated 220v, 20amp service. This concludes Part I: Planning of the Graphical Guide for this roaster. Parts II & III will arrive with your roaster and guide you through installation, set-up & your first roast. If you have further questions or require customized assistance with your planning, contact us. Mill City Roasters, LLC. 1050 33rd Ave SE Minneapolis, MN 55414 Phone: +1 (612) 886-2089 Email: sales@millcityroasters.com Online: www.millcityroasters.com 18 PART ONE