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Select the date or time line with (+) or (-)
Choose between 5 systems, System 1 is default
Basic system, with 1 tank, 1 pump, 1 collector array and 2 or 3 sensors
System with 2 tanks, 1 pump, 1 valve, 1 collector array and 3 sensors
System with 2 tanks, 2 pumps, 1 collector array and 3 sensors
System with 1 tank, 1 pump, 1 valve, 2 collector arrays with 2 different cardinal directions (East / West) and 3
sensors
System with 1 tank, 2 pumps, 2 collector arrays with 2 different cardinal directions (East / West) and 3 sensors
Choose between 3 extra functions
Use to connect an auxiliary or back-up heat source to your system
Use to cool down the primary solar tank during times of high solar irradiation
Use to transfer heated water from one storage tank to another (System 1 only)
Use for collectors that require the sensor to be mounted on the piping external to the collector manifold
Will automatically activate, when the collector temperature reaches the Maxtemp
Adjustable from 230°F to 302°F with factory default set at 248°F
Activates the solar pump (P1 or P2), if the temperature on the collector arrays (T1 or T4) exceeds the collector
Maxtemp
1.6.3 Overheat protection
Will stop all collector circulation, when the collector temperature registers more than 50°F above the collector
Maxtemp
Will keep the solar panel temperature above the Freeze Protection Temperature setting level by activating the
solar pump
If no flow meter is installed, you must manually enter the max (100%) pump flow in gallons/minute
1.8 Reset to Factory default settings
Reset all settings to their factory default
Reset the all of the operation hours to zero
1.10 Time graph temperatures
Adjusts the graphical scale for the Temp vs. Time graphs
1.11 Time graph operation
Adjusts the graphical scale for the Operation h menu vs. time graphs
1.12 Calibration of sensors
Calibrate all the temperature sensors connected to your system
Allows selection of the units of measurement that will be displayed
Choose the type of the pump speed control used on the output P1 (Type: No SC, PhAC SC or PWM SC)
Choose the type of the pump speed control used on the output P2 (Type: No SC, PhAC SC or PWM SC)
Select inputs for analog GRUNDFOS sensors (Type: NC not connected, VFS Flow sensor or VPS pressure
sensor)
Select inputs for analog GRUNDFOS sensors (Type: NC not connected, VFS Flow sensor or VPS pressure
sensor)
Designate one of the system tanks as priority (tank1 or tank2) Will only display if configuring a system with
two tanks
Maximum desired water temperature in tank1
Difference (ΔT) between collector temperature (T1) and tank1 temperature (T2) - will engage pump1
Difference (ΔT) between collector temperature (T1) and Tank1 temperature (T2) - will disengage pump1
Maximum desired water temperature in tank2
Difference (ΔT) between collector temperature (T1) and tank2 temperature (T4) - will engage pump1 with system2
or pump2 with system3
Difference (ΔT) between collector temperature (T1) and tank2 temperature (T4) - will disengage pump1 with
system2 or pump2 with system3
Minimum temperature setting for the priority tank of systems with two tanks
Minimum speed of pumps set to Phase SC (PhAC SC)
2.9 Boost time (Booster pump)
Select the running time of P2 (Booster Pump)
Select the minimum collector temperature required for system start-up
Apricus Solar Collector Installation & Operation Manual - USA
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