686 BLOOMFIELD INDUSTRIES 2 ERIK CIRCLE, P. O. Box 280 Verdi, NV 89439 telephone: 775-689-5700 fax: 888-492-2783 www.wellsbloomfield.com OWNERS MANUAL For COFFEE BREWERS MODELS: 0420 Automatic Airpot Brewer INCLUDES: Installation Operation Use & Care Servicing Instructions Model: 0420 Airpot Brewer PRINTED IN CHINA p/n 77111 Rev.
WARRANTY STATEMENT It also does not apply if the serial nameplate has been removed or unauthorized service personnel perform service. The prices charged by Bloomfield Industries for its products are based upon the limitations in this warranty. Seller’s obligation under this warranty is limited to the repair of defects without charge by a Bloomfield Industries Authorized Service Agency or one of its sub-agencies. This service will be provided on customer’s premises for non-portable models.
TABLE OF CONTENTS WARRANTY STATEMENT SPECIFICATIONS FEATURES & OPERATING CONTROLS PRECAUTIONS & GENERAL INFORMATION AGENCY LISTING INFORMATION INSTALLATION INSTRUCTIONS OPERATION Program Volume Select Keys Brew Coffee CLEANING INSTRUCTIONS TROUBLESHOOTING SUGGESTIONS SERVICING INSTRUCTIONS Deliming Instructions EXPLODED VIEW & PARTS LIST WIRING DIAGRAMS xi 1 2 3 3 4 7 8 9 10 11 12 17 18 21 Thank You for purchasing this Bloomfield Industries appliance.
FEATURES AND OPERATING CONTROLS - AUTOMATIC BREWERS Fig.
PRECAUTIONS AND GENERAL INFORMATION WARNING: ELECTRIC SHOCK HAZARD All servicing requiring access to non-insulated components must be performed by qualified service personnel. Do not open any access panels which require the use of tools. Failure to heed this warning can result in electrical shock. WARNING: INJURY HAZARD All installation procedures must be performed by qualified personnel with full knowledge of all applicable electrical and plumbing codes.
INSTALLATION READ THIS CAREFULLY BEFORE STARTING THE INSTALLATION IMPORTANT: To enable the installer to make a quality installation and to minimize installation time, the following suggestions and tests should be done before the actual unit installation is started: CAUTION: ELECTRICAL DAMAGE DO NOT plug in or energize this appliance until all Installation Instructions are read and followed. Damage to the Brewer will occur if these instructions are not followed. Unpack the unit.
INSTALLATION (continued) PLUMBER’S INSTALLATION INSTRUCTIONS CAUTION: Brewer should be connected to a POTABLE WATER, COLD WATER line. Flush water line before connecting to Brewer. ELECTRICAL DAMAGE DO NOT use a saddle valve with a self-piercing tap for the water line connection. Such a tap can become restricted by waterline debris. For systems that must use a saddle tap, shut off the main water supply and drill a 3/16” (minimum) tap for the saddle connection, in order to insure an ample water supply.
INSTALLATION (continued) WARNING: ELECTRICIAN’S INSTALLATION INSTRUCTIONS SHOCK HAZARD REFER TO ELECTRICAL SPECIFICATIONS - Page 1 Check the nameplate to determine correct electrical service required for the Brewer to be installed. Brewer must be properly grounded to prevent possible shock hazard. DO NOT assume a plumbing line will provide such a ground. Electrical shock will cause death or serious injury. IMPORTANT: Supply power must match nameplate for voltage and phase.
OPERATION Fig. 4 Water Flow Diagram A. START-UP For initial start-up, or if the brewer has not been used for an extended period of time: ♦ Be sure spray disk and brew gasket are properly installed in the brew head. ♦ Be sure the water supply is properly connected and the water supply valve is turned ON and that TANK HEATER SWITCH is OFF before connecting brewer to electric power. ♦ Be sure the WATER TANK IS FILLED. IMPORTANT: Fill the water tank before energizing this brewer. 1.
OPERATION (continued) B. PROGRAM BREW VOLUMES ♦ Each BREW VOLUME SELECT KEY is individually programmable. ♦ Keys may be programmed for pulse brewing to optimize contact times and extraction rates, or to minimize overflowing the brew chamber when using large amounts of grounds. ♦ Up to 10 pulses may be programmed. Each pulse delay is fixed at 15 seconds. 1. Place an empty airpot under the brew head. Install the brew chamber (without filter) under the brew head 2.
OPERATION - BREWING COFFEE A. PREPARATION CAUTION: Place one (1) genuine Bloomfield paper filter in the brew chamber. Add a pre-measured amount of fresh coffee grounds. Gently shake the brew chamber to level the bed of grounds. Slide the brew chamber into place under the brew head. BURN HAZARD Exposed surfaces of the brewer, brew chamber and airpot may be HOT to the touch, and can cause serious burns. CAUTION: BURN HAZARD Fig. 6 Brew Chamber B. AUTOMATIC OPERATION Be sure “READY” light is lit.
CLEANING INSTRUCTIONS CAUTION: PROCEDURE: Clean Coffee Brewer BURN HAZARD Brewing and serving temperatures of coffee are extremely hot. Hot coffee will cause serious skin burns. PRECAUTIONS: Disconnect brewer from electric power. Allow brewer to cool. FREQUENCY: Daily TOOLS: Mild Detergent, Clean Soft Cloth or Sponge Bristle Brush, Bottle Brush CAUTION: SHOCK HAZARD Do not submerge or immerse brewer in water.
TROUBLESHOOTING SUGGESTIONS SYMPTOM POSSIBLE CAUSE SUGGESTED REMEDY Water won’t heat Brewer unplugged or circuit breaker tripped Check power supply cord Check / reset circuit breaker Temperature setpoint too low Set for desired temperature Hi-Limit safety switch tripped Allow to cool hi-limit will selfreset Damaged internal component or wiring Examine wiring & connectors, controller, water level probe and heating element Repair/replace as needed Coffee level too high or low Volume keys not prog
SERVICING INSTRUCTIONS CAUTION: SHOCK HAZARD ACCESS PANELS TOP PANEL: Opening access panels on this brew may expose uninsulated electrical components. Disconnect brewer from electrical power before removing any panel.
SERVICING INSTRUCTIONS (continued) TEMPERATURE ADJUSTMENT CAUTION: Disconnect brewer from electric power. Remove top panel. Remove button plug from front panel. Pull vent tube out of tank lid and insert a thermometer of known accuracy in hole. Reconnect brewer to electrical power. Place empty container under brew chamber. Energize brewer and allow unit to heat. When READY light glows, read the temperature displayed on thermometer. SHOCK HAZARD These procedures involve exposed electrical circuits.
SERVICING INSTRUCTIONS (continued) IMPORTANT: Before setting assembly into tank, make sure tank lid gasket is properly seated on flange of lid. DO NOT OVER-TIGHTEN. REMOVE TANK LID ASSEMBLY Disconnect brewer from electric power. Turn OFF water supply. Remove top panel. Pull vent tube, inlet elbow, outlet elbow and water level probe out of basin pan. Disconnect all wiring from thermostat, hi-limit, and heating element. Loosen nuts on tank hold-down strap.
SERVICING INSTRUCTIONS (continued) REPLACE SOLENOID Symptom: Brewer will not flow water; or, brewer drips continuously from brew head. NOTE: Wrench p/n 86660 is designed to allow easy removal of flare nuts from the water inlet fitting IMPORTANT: Shut-off water to brewer and disconnect brewer from electric power before removing hoses or wiring. Remove water supply flare fitting: a. Slide the 5/8" end of the wrench over the flats on the inlet fitting of the valve. b.
SERVICING INSTRUCTIONS (continued) REPLACE CONTROLLER Disconnect brewer from electric power. Remove top panel and front panel. IMPORTANT: The two keypad ribbon cables connectors are not polarize, and can easily be installed on the wrong location on the board. Be sure to mark the ribbon cable connectors s as to location and orientation. Note location of wire connections. Be sure to mark the two keypad ribbon cables as to location and orientation. Disconnect wiring from controller.
SERVICING INSTRUCTIONS (continued) CAUTION: PROCEDURE: Delime the Water Tank PRECAUTIONS: Disconnect brewer from electric power. Allow brewer to cool. FREQUENCY: As required (Brewer slow to heat) TOOLS: Deliming Solution Protective Gloves, Goggles & Apron Mild Detergent, Clean Soft Cloth or Sponge Bristle Brush, Bottle Brush Large Sink (or other appropriate work area) 1. Disconnect brewer from electric power.
0420 EXPLODED VIEW & PARTS LIST CABINET & ELECTRICAL COMPONENTS 18
0420 EXPLODED VIEW & PARTS LIST (continued) PLUMBING COMPONENTS 19
EXPLODED VIEW & PARTS LIST (continued) SERVICE PARTS KITS 84427 85218 85219 VALVE ASSEMBLY, COMPLETE INLET FITTING KIT ( Includes cap, fitting, gasket & strainer) INLET STRAINER 20
WIRING DIAGRAM 21
Bloomfield Industries proudly supports CFESA Commercial Food Equipment Service Association Bloomfield Industries, Inc. Division of Carrier Commercial Refrigeration In US and Canada Telephone: 775-689-5700 Fax: 888-492-2783 Fax: 800-356-5142 (for orders only) website: www.wellsbloomfield.