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1 GENERAL
1.1. CONCEPT
New feature for the AquaFREE system is the capability of being combined with a "conventional boiler" heating system (gas, gas-oil,
etc...) by using part of the hydraulic system together with the "Boiler Combination Kit" (AF-BCK-01) control kit.
There are three operation modes:
"Automatic" (Heating mode only)
"Boiler only" (Heating mode only)
"AquaFREE only" (Heating & Cooling mode (refreshing floor/Fan Coil))
1.1.1. AUTOMATIC
The control selects between AquaFREE unit or Boiler unit. (Normally installed before than the AquaFREE system).
Controlled by "Outdoor Temperature Setting":
−
The system is going to choose between the AquaFREE unit or the Boiler unit depending on the setted outdoor
temperature. If outdoor temperature is higher than "outdoor setting temperature", the AquaFREE will run. If contrary, the
AquaFREE is going to change to "stand by" (Compressor Thermo OFF), and after some time AquaFREE Water pump
stops (because AquaFREE protection), and Boiler start running.
Controlled by "Time Setting":
−
By using this setting the end user choose the operation time if having special tariff contracted with the electricity supplier
company (tariff depending on "pick time" or "valley time" electricity demand). Boiler Combination Kit can be programmed
by the internal timer (field supplied std. timer) in order to use the AquaFREE unit or conventional Boiler unit.
1.1.2. BOILER ONLY
The control forces the system to use only the Boiler unit.
1.1.3. AQUAFREE ONLY
The control forces the system to use only the AquaFREE unit.
In case of Cooling Mode (refreshing floor / Fan Coil application) this mode is mandatory.
NOTE:
In each case, AquaFREE Room Thermostat, is used for controlling room setting temperature.
General
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