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10.4 Testing the new system ❏❏ Switch the system on. ❏❏ Ensure that no LED lights are on. If LED lights are on or blinking, the installation is faulty. Disconnect the power supply and locate and fix the fault. ❏❏ Check the emergency operation by pressing the emergency operation on/off switch and holding down for 3-5 seconds. This will start a test run (continuous operation for a set period) during which the thermostat does not work. ❏❏ Press the emergency operation on/off switch again to turn off. ❏❏ Test unit in heating and cooling mode as described below. Indoor unit – check: ❏❏ The fan operates at all speeds. ❏❏ There is no vibration of the unit. ❏❏ Vertical and horizontal air direction controls are operating. ❏❏ Air circulation mode (circulating air without heating/cooling) is operating. ❏ The unit operates to the correct heat command – use a thermometer. With an indoor ambient air temperature of 21°C: – for heating, an air-off coil temperature of 45-50°C or better should be achieved – for cooling, an air-off coil temperature of 8-12°C or better should be achieved. ❏❏ The manual operation is functioning – for situations when the remote cannot be used. ❏❏ The auto start is functioning. ❏❏ An electronic sound can be heard by pressing the on/off button of the remote control. ❏❏ The condensate pump (if installed) works. Note: Air-off coil (delivery air) temperature is dependent on the ambient internal temperature and the outdoor temperature. A good rule of thumb is to ensure a 10-15°C temperature difference between air-on coil (air coming back to the coil) and air-off coil (delivery air) for the indoor unit for both heating and cooling. 10.5 Instructions to the owner Checklist of instructions to the owner on the use of the system: ❏❏ Demonstrate how to set the controls/different modes correctly. ❏❏ Demonstrate how to use the remote control. ❏❏ Demonstrate how to remove and clean air filters. Advise: – on what to expect on very hot or very cold days – that the system will take a few minutes to warm up – considerturningtheheatpumpofflateatnightifthenoisebotherstheneighbours. ❏❏ Advise of service requirements. ❏❏ Recommend reading the operating instructions manual. ❏❏ Provide a service checklist. ❏❏ Provide the warranty. ❏❏ Provide an electrical code compliance certificate. ❏❏ Provide a record of the system commissioning data. ❏❏ Provide contact names and numbers in case of problems. Understanding how to use a heat pump efficiently is important information for homeowners. The following information is taken from the EECA ENERGYWISETM publication How to choose a heat pump and use it wisely – it can also be downloaded from www.energywise.govt.nz 50PDF Image | Heat pump installation Good Practice Guide
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