User manual HONEYWELL PCR 310

[. . . ] PCR-310 PCR-410 with TR-310 Installation and Operating Instructions Electronic refrigeration control with mains transformer EN1H-1923GE23 R1207 EB-PCR-05 TABLE OF CONTENTS 11 Unpacking the unit and conditions of use 12 General instructions 13 Use and function 3. 1 Use for the purpose intended 3. 2 Function 3 3 3 3 4 5 5 5 6 6 7 8 9 9 9 10 11 11 12 12 12 14 15 15 16 16 17 14 Safety 4. 1 Sources of danger 4. 2 Safety precautions 15 Installation and commissioning 5. 1 Mechanical installation 5. 2 Electrical installation 5. 3 Setting the dip switch for the emergency setpoint 16 Operation of the controller 6. 1 6. 2 6. 3 6. 4 6. 5 Switching on the operating voltage Display Key functions Adjusting the cold store temperature Changing the cold store temperature difference, defrost cycle, and alarm temperature 6. 6 Manual defrosting 17 Programming 7. 1 Input parameters and ranges 7. 2 Sensor calibration (parameters E 15 and E 16) 18 Maintenance 19 Alarm messages 10 Problem solving 11 Conditions of warranty 12 Technical data 2 1 Unpacking the unit and conditions of use Before and when unpacking the unit, make a visual inspection to identify any possible damage which may have occurred during transportation. Please look for loose parts, dents, scratches, etc. Report any damage immediately to the freight company. (Please see "Conditions if damage has occurred". ) In other cases, the latest edition of the "General conditions for the supply of goods and services" issued by the ZVEI (German Central Association for the Electrotechnical Industry) shall apply. [. . . ] If the local interference level exceeds the immunity data might get lost (AL1 in display) and the controllers switches to the preprogrammed setting values. This is not a mulfunction of the controller. In such cases the means to suppress interference have to be improved (RC-elements, shielded lines). 5. 3 Setting the DIP switch for the emergency setpoint The DIP switch is at the side of the controller. 8 ¼ Selection of the emergency setpoint value for the cold store temperature: This will be activated if the data in the memory is lost and if alarm AL1 is activated. This sets all program parameters to the preset value. The cold store temperature setpoint can be preset to +4 °C or ­18 °C, as desired. This ensures that chilling systems with temperatures above zero do not freeze and deepfreeze installations do not thaw. DIP switch 1, Pos. : off: Setpoint value at +4 °C for emergency operation. Advisable for chilled storage (= Preset value). DIP switch 1, Pos. : on: Setpoint value at ­18 °C for emergency operation. Advisable for deepfreezers. 6 Operation of the controller Front view of controller: 6. 1 Switching on the operating voltage The controller is started by means of a control switch provided by the customer. The first time the controller is started, pre-programmed setting values are used which at a later point can be adapted for individual requirements. If alarm "AL 2" (temperature in refrigerated chamber too high or too low) is displayed when the controller is switched on, this can be cleared by pressing the key. 6. 2 Display During normal operation the current cold store temperature is displayed. It is measured with cold store sensor T1. 9 In the event of an alarm, the most recent alarm message (e. g. AL1) and the cold store temperature are displayed alternately. Three spot indicators show the switching status of the relays during operation: Pos. Flashes: Compressor start-up delay E05 active. 6. 3 Key functions Never operate the keys with sharp objects (screwdriver or similar). Display of setpoint temperature: Clear alarm messages: Evaporator temperature display: Manual defrost initiation: Display of time until the next defrost: Display limit value for excess temperature alarm: (cold store sensor T1) ¼ ¼ Press and hold down key. Press key. (If the sonsor is faulty, switch mains voltage ON/OFF). Press and keys in sequence and hold both down. [. . . ] Safety times are used, for the fan run-on function the fan is controlled with the compressor by the evaporator fan control E11 automatically switching from 3 to 1. After sensor T2 has been repaired, E11 must be reset manually from 1 to 3. AL2 AL3 AL4 AL5 AL6 15 Clearing alarm: Press the key. All alarm messages, with the exception of AL2, are also reset by switching off the operating voltage. AL2 can only be reset using the key. 10 Problem solving Fault Evaporator fan does not switch on during cooling when the programmed setting of parameter E11 is set to position 3 (fan run-on). [. . . ]