TemperZone Econex OPA 250RLTFP Installation & Maintenance Download Page 10

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Lock-out

Each protection function has a trip counter. A trip counter

is reset to 0 whenever the compressor run request is

removed. Any trip that has occurred more than 12 hours

ago is removed from the trip count. For some protection

functions, when the trip counter reaches value 3 (i.e. three

consecutive trips occur) then the unit is “locked out”.
When a unit is locked out the compressor is not allowed to

start. Lock-out is designed to protect the compressor from

repeatedly starting when a serious fault exists that requires

the attention of a service technician.
The display shows the code of the fault that caused the

lock-out condition.
A unit that is locked out can be unlocked using any one of

the following methods:

• Remove mains power from the unit for at least 3 seconds,

then restore power.

• Issue an ‘unlock’ command via Modbus RTU serial

communications.

• Reset the controller via Modbus RTU serial

communications.

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Summary of Contents for Econex OPA 250RLTFP

Page 1: ...well ventilated space If the refrigerant gas comes into contact with fire a poisonous gas may occur Be aware that R32 does not contain an odour If indoors the appliance shall be stored in a room away...

Page 2: ...eparate drain tray beneath the unit could be used to drain condensate to a suitable drainage point Condensate drains should be U trapped outside the unit The trap should have a vertical height of at l...

Page 3: ...llows DIP switch 2 ON Equipment type Heat Pump DIP switch 3 OFF Equipment stages One DIP switch 4 ON Reverse cycle valve on Heating SAT 3 Refer SAT 3 Installation Set up Guide page 3 4 4 Communication...

Page 4: ...emperzone biz model search UC8 or com website 4 10 Setting the UC8 Modbus device address To view or change the Modbus device address of a UC8 follow these steps Power up the unit but leave the compres...

Page 5: ...er 2 Start compressor in Cooling mode 3 Check the outdoor fan motor runs smoothly Note The outdoor fan does not necessarily start rotating immediately after the compressor is started The fans may run...

Page 6: ...signals and transfers the signals to the outputs after enforcing safety timers and other protection functions If the compressor is held off or held on by a safety timer then the display shows message...

Page 7: ...door coil This usually means reversing the cycle for a few minutes during which time there is no heating and in fact a little cooling can occur 8 4 In a new building why does it take some days before...

Page 8: ...t 6K Compressor discharge line pressure kPa dLP Discharge line pressure 2447 kPa Condensing temperature C Ct Condensing temperature 42 C Compressor discharge line temperature C dLt Discharge line temp...

Page 9: ...indication that the compressor is being starved of refrigerant gas Common reasons for this could be a lack of refrigerant under charged or loss of charge or a problem with the expansion device for exa...

Page 10: ...ked out the compressor is not allowed to start Lock out is designed to protect the compressor from repeatedly starting when a serious fault exists that requires the attention of a service technician T...

Page 11: ...3 4 1 1 INPUT kW 2 5 1 5 0 5 2 0 1 0 3 0 3 5 Amps 500 1000 1500 2000 2500 0 100 200 300 AIR FLOW l s AVAILABLE EXTERNAL PRESSURE Pa 2 5 m s Face Velocity 400 500 0 NOMINAL INPUT kW 3 0 2 0 1 0 2 5 1 5...

Page 12: ...st IMPORTANT Digital compressors must be operating at 100 for at least 10 minutes when taking these readings System 1 Cool Cycle Low Pressure SLP kPa Outdoor Ambient temperature C Evap temperature Et...