User manual HONEYWELL PCR 300

[. . . ] PCR-300 PCR-300 RC Installation and Operating Instructions Electronic refrigeration control EB-PCR-04 EN1H-1924GE23 R1207 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 4 4 5 5 5 6 8 9 9 9 10 11 11 11 12 13 13 15 16 16 17 17 18 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 and clock back-up battery 16 Operating 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 Setting the time (PCR-300RC only) 6. 7 Manual defrost 7. 1 Input parameters and ranges 7. 2 Sensor calibration (parameters E 15 and E 16) 17 Programming 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 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. Before disposing of the packaging, please check it for loose functional parts and information leaflets. So that we can process warranty claims, please give an exact description of the defect (with a photograph, if appropriate) and state the model designation of the unit. [. . . ] DIP switch 1 (left), Pos. : off (bottom): Setpoint value at +4 °C for emergency operation. Pos. : on (top): Setpoint value at ­18 °C for emergency operation. For PCR-300 RC only: The back-up battery must be switched on when the controller is started up so that the real-time clock keeps operating if there is a power failure. Activation of the back-up battery: DIP switch 2 (right), Pos. : off (bottom): Battery switched off when controller is stored or in transit. (The battery is switched off when the controller is delivered; exhaustive discharge monitoring). Pos. : on (top): Battery activated. 8 ¼ Note: It takes approximately 24 hours for the battery to achieve its full back-up capacity. The battery will provide cover for a power failure of approximately 1 month. 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 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. AL1) and the cold store temperature are displayed alternately. 9 Three spot indicators show the switching status of the relays during operation: Pos. 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 ¼ Press and hold down key. Press key. (If the sensor is faulty, switch mains voltage ON/OFF. ) Press and keys in sequence and hold both down. Press key for 5 secs. Press and keys in sequence and hold both down. (Display in hours and minutes. ) Press key. Change input values by using the and keys with the key pressed down. the switching difference, are indicated by "E" and a 2-digit number, e. g. The input parameters are grouped together in two programming levels. 10 ¼ ¼ Access the first programming level by pressing the and keys at the same time for 5 seconds. Access the second programming level by pressing the and and keys simultaneously for 5 seconds. To exit from the programming levels and save the data, press the key after the last input parameter. key after the last level has 6. 6 Setting the time (PCR-300RC only) ¼ Press and hold down the and keys at the same time for approx. ¼ Setting: Press and hold down the key and change the time to the current time using the or key (increments of 10 minutes). Display Setting range Preset E00 Time 00. 0 to 23. 5 hours 12'0 hours Exiting programming mode: Press the key several times. 12 6. 7 Manual defrosting Press and hold down the key for 5 seconds. [. . . ] The setpoint value will be set to +4 or ­18 °C, depending on the selection of DIP switch 1. Limit value (=setpoint value +E03) at sensor T1 exceeded and delay time E04 elapsed. The sonsor temperature at sensor T1 is above 50 °C or below ­55 °C. The specified setpoint value is outside the limits E12 and E13 Cold store temperature sensor T1 ­ short circuit or break in wiring. [. . . ]