RECLAIM V1.1 Heat Pump Controller Owner’s Manual

RECLAIM V1.1 Heat Pump Controller

HEAT PUMP CONTROLLER V1.1 MANUAL

IMPORTANT
This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.
WARNING
This appliance may deliver water at high temperature. Refer to the Plumbing Code of Australia (PCA), local requirements and installation instructions to determine if additional delivery temperature control is required.

OVERVIEW

This controller is designed to work only with the Reclaim CO2 domestic hot water heat pump. The key difference between V1 and V1.1 controller is the introduction of Option 6 which is a remote option control in V1.1. All functionalities between controllers are the same so for more information on how the controller works, please refer to the heat pump installation manual.

• The controller measures the tank temperature and compares that to set points that it has stored in memory. These set points can be dependant on time of day depending on the option set. Once the lower temperature is reached the controller signals the heat pump to start heating via the RJ45 cable. Once an upper temperature is attained the controller signal the heat pump to stop heating. The controller automatically manages Legionella safety, heating once a day if the Legionella safe temperature has not been attained during the day.
• The 7 segment display defaults to time of day but can also show the measured temperature. 3 status LEDs show additional information as shown on page 5.
• The onboard Real Time Clock is maintained by a Super Capacitor on the main circuit board. This will keep the time running for 3 weeks with no power applied but itself should last for the lifetime of the controller.
• The controller is prewired to be ‘plug n play’ and there is usually no need to remove the cover on installation. The enclosure is water resistant (to rain) and is UV resistant. The case is made of non-burning tough polycarbonate.

BEFORE YOU BEGIN INSTALLATION

INSTALLING THE RECLAIM CONTROLLER

RECLAIM CONTROLLER WITH THE COVER REMOVED

FRONT PANEL OPERATION

MODES OF OPERATION

TIME CONTROL MODE:

• Temperature control mode can be enabled and disabled during certain periods within the 24 hour period, as set in the options page.
• On entering the start time of an option, there will be a boost cycle initiated, then once at target temperature, will continue to reheat when the tank temperature falls below ‘Ton’.
• The user can select between permanent enable, four preset time periods, a remote input option or two user selectable fully adjustable time periods.
• When the Time Control Mode is active the Power ON LED flashes.

BOOST MODE:
The Boost mode can also be turned on and off via a momentary press of the boost button. When activated, temperature control mode is enabled, as above, allowing the heat pump to turn on. The heat pump will remain on until the temperature reaches 59˚C (plus 3 seconds), or the 6 hour period has elapsed, whichever occurs first. The On Call LED will start flashing, indicating the heat pump has been turned on via Boost Mode. If inadvertently pressed, boost mode can be turned off by pressing the Boost button again.
Note that if a faulty temperature sensor is detected (eg-8 or eg-9), the Boost function will still operate, and turn the heat pump on for 6 hours.

TEMPERATURE CONTROL MODE:

1. On first start, the heat pump is turned on if the temperature is less than 59˚C (default).
2. On subsequent starts the heat pump is turned on when the temperature in the tank drops to the T-on setting (37˚C -default) and turns off when the temperature reaches the T-off setting (59˚C – default). Both switch points have a fixed time delay of 3 seconds.
3. This mode is disabled if a faulty temperature sensor is detected (Eg-8 and Eg-9), although the boost mode is still operational.
4. There is an additional inbuilt time delay for the T-OFF temperature, called T-OFF Maintain time. The default is 0 minutes, but if set to 1 minute, then the T-OFF temperature must stay at the T-OFF value or greater for one minute (plus the 3 seconds), before the heat pump is turned off.

• Option1 :
  Temperature only control mode.

• Option2:
  Temperature control starting at 22:00 and remain enabled for 9 hours.

• Option3:
  Temperature control starting at 00:00 (midnight) and remain enabled for 6 hours.

• Option4:
  Temperature control starting at 10:00 and remain enabled for 6 hours.

• Option5:
  User Settable for two operational windows. The first must be at least 6 hours and the second can be set for 0 hours or more.

• Option6:
  Temperature control starting on contact closure on REMOTE input and remain enabled for duration of contact closure. Once contact is open, heating cycle will finish.

HEAT PUMP FAULTS:
Should the heat pump unit go into fault, it will generate a fault code which this module will display. The Fault LED will turn on, and one of the following error codes will be displayed.

• Eg-1 Heat Pump Sensor error (not the controller sensor)
• Eg-2 Compressor error or Refrigerant shortage
• Eg-3 PCB error – heat pump PCB faulty
• Eg-4 Circulation failure
• Eg-5 Pump error
• Eg-6 Fan Motor error
• Eg-7 Discharge temperature error Refer to heat pump manual for further information on the above.
• Eg-8 Tank Temperature sensor not detected (open circuit)
• Eg-9 Tank Temperature sensor fault (short circuit)
  Note: Temperature control mode is disabled for Eg-8 and Eg-9 faults, however boost mode is still operational.

HEAT PUMP PURGE MODE:
On occasion the heat pump needs to be purged of air in the system.
To activate Purge Mode, perform the following steps:

1. Ensure the module is in the Normal Display mode, displaying either Time of day, or Temperature.
2. Press and hold down the Menu button, for approximately 5 seconds.
3. The Display will commence flashing Purg
4. The heat Pump output will be disabled.
5. The Purge output will be enabled.
6. Purge mode will remain active for 5 minutes.
7. All menu and display modes are disabled during Purge Mode.
8. After 5 minutes has elapsed, the purge output will turn off.
9. All control functionality will resume.

Note: Purge mode can be turned off at any time, by again pressing and holding the menu button for 5 seconds. Purge mode is automatically turned off if the module is currently displaying a heat pump error code.

USER ACCESS

EXAMPLES SETTING THE TIME
NOTE: There is a 12 second no button press timeout.

CHANGING AN OPTION – MODE OF OPERATION
NOTE: There is a 12 second no button press timeout.

STATUS OF OPERATION LED AND BUTTON FUNCTION SUMMARY

CONTROLLER STATUS LEDS Eg during Options 2 – 6; When the heating is disabled due to the time period, the Green LED will be solid, when temperature mode is enabled due to the time, the Green LED will flash.

BUTTON FUNCTIONS 1300 383 815
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Issue 01 | Feb 2022
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References

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• Reclaim Energy - Heat Pump Hot Water System

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