Frequently Asked Questions
General
- What is a heat pump?
- Can Altherma be delivered without a back up heater?
- Can Altherma produce hot water in summer?
- Can I connect a split outdoor unit to a hydrobox?
- Can I connect radiators to the Altherma system even though the temperature is limited at 55°C?
- Can I upgrade a heating only version of the hydrobox to a reversible with cooling?
- Can I use separate room thermostats and programmable timers?
- Can I use the floor loops for cooling?
- If the maximum water temperature from the heat pump is 55°C, how can I reach a sufficient domestic water temperature?
- Is it possible to combine altherma with thermal solar tubes for domestic hot water heating?
- Is it possible to set the system to give an automatic switchover between heating and cooling?
- Is it possible to upgrade a low capacity back up heater to a larger capacity?
- Is the cooling function always included?
- Is the hot water function always included?
- What is a back up heater?
- What is a floating set point (weather compensation)?
- What is an inverter compressor?
- What is the factory warranty for Altherma?
- What is the lowest operational temperature limit for the Altherma system?
- What is the maximum water temperature generated by the heat pump?
- What is the maximum water temperature produced by the back up heater?
- Why do I need a Daikin hot water tank?
Installation
- Are there separate power supplies for the electric heaters and the outdoor unit?
- Can I use the floating set point if I install my outdoor unit in a garage that is warmer than the ambient outdoor temperature?
- Can the temperature sensor which is used to determine the floating set point be mounted remote from the outdoor unit?
- How do I know where the equilibrium point is?
- How do I prevent the floors from being cooled if I use a fan coil unit for cooling?
- How does the compressor operate in hot water mode?
- How is the compressor frequency controlled?
- Is it possible to combine radiators and floor heating in the same system?
- Is it possible to install the controller remote from the hydrobox?
- Is it possible to install the hydrobox outside?
- Is there any wiring between the hydrobox and domestic tank?
- Is there need for an additional buffer tank to ensure that the water temperature does not drop during defrost?
- What are the benefits of a floating set point?
- What are the benefits of an inverter compressor?
- What happens to the floating set point if the sun shines on the temperature sensor?
- What is the equilibrium point?
- What is the minimum water content of the system?
- What size fuses do I need for the outdoor unit power supply?
- Where is the back up heater placed?
- Which operational mode has priority?
- Will the back up heater and booster heater work simultaneously?
- Will the schedule timer be reactivated when the power returns after a power supply failure?
Operation
- Is the auto restart function default on?
- What are the main operation functions on the controller?
- What happens to the clock when a power supply failure occurs?
- What happens when the system switches between modes?
- What is the auto restart function?
- What is the schedule timer?
- Why doesn’t the booster heater switch on immediately when there is a request for hot water?
- Why is the water temperature limited to 55°C even though I am using an electric back up heater?
- Will I still have sufficient capacity of hot water even if the heat pump or booster heater doesn’t switch to hot water mode immediately?
- Will the back up heater always be switched on?
