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Heatcraft Refrigeration Products 25001501 manual

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Table of contents for the manual

  • Page 1

    2175 West Park Place Blvd. • Stone Mountain, GA 30087 • (770) 465-5600 • Fax: (770) 465-5990 INST ALLA TION & OPERA TING INSTRUCTIONS FOR 02/01 Part Number 25001501 ®[...]

  • Page 2

    BEACON CONTROLLER 2 QUICK GUIDE Installation, Start-Up, Operation, T roubleshooting Installation • Use 18 gauge wire for 24-volt connections between evaporators and condensing unit. • Remove suction line sensor before brazing; reinstall suction sensor after brazing is completed and suction line has cooled; insulate with insulation provided. •[...]

  • Page 3

    BEACON CONTROLLER 3 QUICK GUIDE (cont’d.) Defrost • The actual defrost time is determined when power is first applied to the system as well as the number of defrosts per day . If a Smart Controller is used, the actual defrost times are programmed into the Smart Controller . • At defrost the expansion valve closes, then the system pumps down u[...]

  • Page 4

    BEACON CONTROLLER 4 INST ALLA TION INSTRUCTIONS Before Installing or Starting Unit: • Use a minimum 18 gauge wire for low voltage connections to cooler , condensing unit and Smart Controller . • T ransformer is shipped wired for 240V primary; if your supply voltage is 208V , change to the 208V tap. • Refer to wiring schematic shipped on units[...]

  • Page 5

    BEACON CONTROLLER 5 REFRIGERANT LINE BRAZING (CAUTION) The electric expansion valve on the liquid line and the suction temperature sensor on the suction line are factory installed. Care must be taken when brazing these lines at the evaporator . T oo high a temperature may destroy these components. Heat absorbing compounds or “wet rags” must be [...]

  • Page 6

    BEACON CONTROLLER 6 ROOM TEMPERA TURE CONTROL (Cont’d.) • Another method of setting the room set-point is to use the Beacon board thermostat pot. If a value other than that available by using a fixed resistor is required, the pot on the Beacon board can be used. First, you must discard the fixed resistor . Then, using a digital ohmmeter , measu[...]

  • Page 7

    BEACON CONTROLLER 7 BEACON MICROPROCESSOR SETTINGS (See T able 3 for more details.) Selections to be made by applying movable jumpers: Defrost cycles or time - Controlled by the board in master unit only . Selection must be either “elapsed” time or “run” time. If “elapsed” time is selected, the number of defrost must be set at either 1,[...]

  • Page 8

    BEACON CONTROLLER 8 OPERA TING INSTRUCTIONS REFRIGERA TION MODE ST ART UP 1. Check all wiring connections to be sure they are correct and tight. 2. Check voltage taps on transformer . The transformer is shipped wired for 240. If your supply voltage is 208 volt systems, charge to 208 voltage tap. 3. Check setting of time delay relay in condensing un[...]

  • Page 9

    BEACON CONTROLLER 9 Ambients below 50 ° F and above 10 ° F At the initial application of power to the system, the compressor and the evaporator fans will be in a four minute hold-off cycle and will not start immediately . When there is a call for cooling, the compressor starts and the electric expansion valve (EEV) stays closed for 12 seconds. Af[...]

  • Page 10

    BEACON CONTROLLER 10 PUMP-DOWN At the end of each cooling cycle, when the box temperature is met, the system will pumpdown and shut off. T o pumpdown, the EEV closes and the compressor pumps down until the low pressure switch trips the unit off, or two minutes have elapsed. While in the of f cycle the system will initiate a short pump-down at four [...]

  • Page 11

    BEACON CONTROLLER 11 ST A TUS INDICA TOR There is a red status indicator light on the Beacon board. This light has a controlled blink sequence to indicate modes such as cooling, superheat, off, defrost, or error . (See status light blink sequence chart.) • COOLING/SUPERHEA T : During the cooling mode, the light will blink off for two seconds, on [...]

  • Page 12

    BEACON CONTROLLER 12 Error Codes • One blink — Superheat sensor shorted or open • T wo blinks — Room temperature sensor shorted or jumper not installed • Three blinks — Compressor discharge temperature sensor shorted • Four blinks — High compressor discharge temperature • Five blinks — Superheat too low • Six blinks — High p[...]

  • Page 13

    BEACON CONTROLLER 13 OPTIONAL SMART CONTROLLER The Beacon Smart Controller performs all the standard Beacon functions with the additional benefit of remote mounting for easy access. From the Smart Controller , the refrigeration system can be monitored and the program parameters changed, without the user going into the Cooler or Freezer Box. The Sma[...]

  • Page 14

    BEACON CONTROLLER 14 T ABLE 3 The initial factory settings for the BEACON MICROPROCESSOR BOARD are indicated on the following chart. ELECTRIC DEFROST AIR DEFROST F ACTOR Y SETTINGS F ACTOR Y SETTINGS DEFROST CYCLES OR TIME DEFROST CYCLES OR TIME 6 PER DA Y/ 2 HRS 6 PER DA Y/ 2 HRS 4 PER DA Y/ 3 HRS X 4 PER DA Y/ 3 HRS 2 PER DA Y/ 6 HRS 2 PER DA Y/ [...]

  • Page 15

    BEACON CONTROLLER 15 T o test the Beacon board place the test jumper to the “TEST” position. The board will then cycle through each output for 10 seconds. It will energize and de-energize the fan motor , electric heater, expansion valve and compressor for 10 seconds. When in the TEST mode the status light flashes quickly . If a sensor is bad it[...]

  • Page 16

    BEACON CONTROLLER 16 F AUL T OR PROBLEM THINGS T O CHECK System runs 4 minutes then cycles off, then repeats 1. Check if sensors are connected correctly; if evaporator in/out are switched, this will cause low superheat 2. Check if system is piped properly 3. System will cycle of f if discharge line gets above 225 ° F 4. Check evaporator coil circu[...]

  • Page 17

    BEACON CONTROLLER 17 BEACON TROUBLE-SHOOTING GUIDE (cont’d.) System will not run 1. Check if red jumper wire (next to blue pot) is correctly connected across “X” terminals 2. Check red jumper wire terminals to make sure they are connected to the wire, not the insulation 3. Check to make sure system is correctly wired 4. Check system for low v[...]

  • Page 18

    BEACON CONTROLLER 18 BEACON UNI-POLAR EXP ANSION V AL VE TEST VOL T AGES ESV TEST (Beacon Board connection) (dc volts) BLUE RED WHT BLK YEL V AL VE OPEN 4.4 15.6 15.6 15.7 15.6 V AL VE CLOSED 0 15.3 15.3 15.4 15.5 Com 24 Vdc Notes: 1. All volts shown are measured while in the “TEST” mode and are DC 2. The volts shown for each step (BLUE, RED, W[...]

  • Page 19

    BEACON CONTROLLER 19 SERVICE DIAGNOSIS CHART - BEACON PROBLEM POSSIBLE CAUSE POSSIBLE CORRECTIVE ACTION Compressor will not run 1. 4 min. off cycle 1. W ait 4 min. 2. Box temp is below t’stat setting 2. Lower t’stat setting 3. Loose wiring 3. Check all wire terminals; tighten if necessary . 4. Bad sensor 4. Check status light for problem sensor[...]

  • Page 20

    BEACON CONTROLLER 20 PROBLEM POSSIBLE CAUSE POSSIBLE CORRECTIVE ACTION Beacon Board Status 1. Supply voltage too high 1. Check 24 volt supply; if above 30 volt Light Flashes Erratically correct immediately . 2. Supply voltage too low 2. Change transformer primary to correct supply 3. Bad board voltage tap. 208 or 240 volts. SERVICE DIAGNOSIS CHART [...]

  • Page 21

    BEACON CONTROLLER 21 SERVICE DIAGNOSIS CHART - GENERAL PROBLEM POSSIBLE CAUSE POSSIBLE CORRECTIVE ACTION Low suction pressure 1. Insufficient refrigerant 1. Check system for leaks; repair leaks & add refrigerant 2. Freezer coil iced up 2. Check defrost system operation & correct fault condition 3. Plugged liquid line filter drier 3. Replace[...]

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    BEACON CONTROLLER 22[...]

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    BEACON CONTROLLER 23[...]

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    BEACON CONTROLLER 24[...]

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    BEACON CONTROLLER 25[...]

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    BEACON CONTROLLER 26[...]

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    BEACON CONTROLLER 27[...]

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    BEACON CONTROLLER 28[...]

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    BEACON CONTROLLER 29[...]

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    BEACON CONTROLLER 30[...]

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    BEACON CONTROLLER 31[...]

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    BEACON CONTROLLER 32[...]

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    BEACON CONTROLLER 33[...]

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    BEACON CONTROLLER 34[...]

  • Page 35

    BEACON CONTROLLER 35 Notes[...]

  • Page 36

    Visit our web site at www .heatcraftrpd.com for T echnical Literature Online. Since product improvement is a continuing effort at Heatcraft, we reserve the right to make changes in specifications without notice. 2175 West Park Place Blvd. •Stone Mountain, GA 30087 •(770) 465-5600 • Fax: (770) 465-5990[...]