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Heatcraft Refrigeration Products 25001501, Инструкция по установке и эксплуатации, Страница: 27 / 36

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BEACON CONTROLLER

27

Содержание 25001501

Страница 1: ...2175 West Park Place Blvd Stone Mountain GA 30087 770 465 5600 Fax 770 465 5990 INSTALLATION OPERATING INSTRUCTIONS FOR 02 01 Part Number 25001501...

Страница 2: ...n of master Start Up After system evacuation add correct refrigerant It may be necessary to adjust time delay relay TDR to 10 minutes temporarily to allow system charging Readjust TDR back to 2 minute...

Страница 3: ...0 F may need to addd pressure fan cycling switch System flashes superheat sensor shorted or open Change evap in and evap out sensors System flashes room temp sensor discharge sensor defrost terminatio...

Страница 4: ...crankcase heater to be energized 24 hours prior to start up the Beacon should be de energized for this period by disconnecting the 24V lead to the condensing unit terminal block To start the system th...

Страница 5: ...Slave unit s if used Connect the multi out terminal on the master unit to the multi in terminal on slave unit and the 24V 18 to 30 VAC from the master unit to the slave unit See wiring diagram Alarm c...

Страница 6: ...ed for the desired room temperature according to Table 1 Install the jumper supplied in the bag across the terminal marked X when finished TABLE 1 Carbon Film Fixed Resistor selections that will contr...

Страница 7: ...o check board for proper function Type 2 or type 1 Are not used Do not select Reset time or normal Resets all internal timers back to zero as though the unit was just powered up Keep jumper on normal...

Страница 8: ...ts and the electric expansion valve EEV stays closed for 12 seconds After 12 seconds the EEV goes to approximately half open and the compressor is put in a four minute hold on cycle This means that th...

Страница 9: ...he 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...

Страница 10: ...nately By using a volt meter to measure the DC volts across the pins marked EXV TEST bare pins near LED on the Beacon board a determination can be made if the valve is open or closed This must be meas...

Страница 11: ...When the Beacon is energized the alarm contacts are OPENED When an alarm condition is de tected the contacts are CLOSED Conditions under which the alarm contacts will close are Power failure on or to...

Страница 12: ...fans while loading the freezer or cooler box This may cause the evaporator coil to freeze up The compressor can be de energized when the evaporator fan is de energized by wiring a 24V AC coil double p...

Страница 13: ...d low temperature limits for alarm Alarm conditions time limits Medium temperature or low temperature system F or C Set the clock Run a quick test of the system Other features of the Smart Controller...

Страница 14: ...F 8 F X 8 F X 12 F 12 F DEFROST FAIL SAFE DEFROST FAIL SAFE 10 MIN 10 MIN 20 MIN 20 MIN 30 MIN X 30 MIN 40 MIN 40 MIN X 60 MIN 60 MIN MEDIUM X LOW MEDIUM X LOW TEST X NORM TEST X NORM TYPE 1 TYPE 2 T...

Страница 15: ...trol Board for Electric Defrost 28910001 Control Board for Air Defrost 28910002 Terminal Block 2251266 Low Pressure Switch Time Delay Relay 22536801 Electric Expansion Valve ESV 1 24 volt 29310001 ESV...

Страница 16: ...e 30 VAC 3 Check if expansion valve is correctly wired on Beacon board 4 Check EVAP IN EVAP OUT sensors for proper operation 5 Is EEV wired properly 6 Is system charged properly 7 Check fan cycling op...

Страница 17: ...copper tubing 6 If system has Smart Controller check MULTI IN MULTI OUT connection at board at Smart Controller to make sure wires are not reversed 7 Check if ROOM sensor is connected on Beacon board...

Страница 18: ...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 WHT BLK are measured between the YEL Com the corresponding pin 3 The volts sh...

Страница 19: ...to low superheat check tripping compressor EVAP IN EVAP OUT sensors check refrigerant charge Superheat light indicates 1 Incorrect refrigerant charge 1 Check refrigerant charge 1 deg then 8 deg 2 Exp...

Страница 20: ...lems 8 Check motor for open circuit short circuit grounded windings or burn out 9 Loose wiring 9 Check all wire terminals tighten if necessary Compressor noisy or 1 Flooding of liquid refrigerant into...

Страница 21: ...il sight glass is 1 2 full pressure 2 Compressor short cycling 2 Check low pressure control settings 3 Excessive liquid refrigerant in 3 Check crankcase heater check expansion valve compressor crankca...

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Страница 35: ...BEACON CONTROLLER 35 Notes...

Страница 36: ...for Technical 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 Moun...

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