Apricus Advanced solar controller User manual

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ADVANCED SOLAR
CONTROLLER

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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!! !!!!!!!!!WARNING!
!Always'disconnect'the'power'supply'before'installing'or'servicing.!
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Read! through! these! warnings! and! all! installation! instructions!
before! beginning! installation.! ! Failure! to! do! so! can! result! in! fire,!
shock,! property! damage,! personal! injury! and/or! death.!!
Installation,! operation,! and! maintenance! must! be! performed! by!
qualified! personnel,! in! accordance! with! applicable! codes,!
standards,!and!practices.!
!
Apricus! Solar! Co.,! Ltd.! is! not! responsible! for! any! damages! or!
injuries!that!result!from!improper!installation,!modification,!use!or!
applications/configurations! other! than! those! detailed! in! this!
document.!
!
This!control!is!designed!to!be!mounted!indoors;!it!is!neither!splash‐!
nor! drip‐proof! and! should! be! protected! from! extremes! in!
temperature!and!humidity.!
!
KEEP'THIS'INSTRUCTION'MANUAL'AND'MAKE'IT'AVAILABLE'FOR'ALL'END'
USERS.!

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TABLE OF CONTENTS
Main and Technical Features ---------------------------------- Page 5
Display ---------------------------------- Page 6
1 Service Menu ---------------------------------- Page 7
1.1 Language
1.2 Time & Date
1.3 System
1.3.1 System 1
1.3.2 System 2 ---------------------------------- Page 8
1.3.3 System 3
1.3.4 System 4
1.3.5 System 5
1.4 Extra function ---------------------------------- Page 9-10
1.4.1 Thermostat
1.4.2 Cooling
1.4.3 Diffcontrol
1.5 External Sensor ---------------------------------- Page 11
1.6 Protection function
1.6.1 Cooling ---------------------------------- Page 12
1.6.1.1 Recooling
1.6.2 Overheat protection
1.6.3 Freeze Protection
1.7 Flow meter ---------------------------------- Page 13
1.8 Reset to Factory default settings !
1.9 Reset operation time ---------------------------------- Page 14
1.10 Time graph temperatures
1.11 Time graph operation
1.12 Calibration of sensors
1.13 US Version ---------------------------------- Page 15
1.14 Pump P1
1.15 Pump P2 ---------------------------------- Page 16
1.16 GDS1
1.17 GDS2 ---------------------------------- Page 17
1.18 Priority tank
2 Setting Menu ---------------------------------- Page 18
2.1 Maxtemp tank1
2.2 dTMax tank1
2.3 dTMin tank1
2.4 Maxtemp tank2
2.5 dTMax tank2
2.6 dTMin tank2
2.7 Mintemp Prio tank ---------------------------------- Page 19
2.8 Min rev pump
2.9 Boost time (Booster pump) ---------------------------------- Page 20
2.10 Mintemp Collector
Extra Functions
2.11 Thermostat function ---------------------------------- Page 21
2.11.1 Start
2.11.2 Hysteresis
2.12 Cooling function ---------------------------------- Page 22
2.12.1 Cooling start
2.12.2 Cooling Hyst
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2.13 Diffcontrol function ---------------------------------- Page 23
2.13.1 Max cold tank (no auxiliary heat source)
2.13.2 Min warm tank (no auxiliary heat source)
2.13.3 Max cold tank (w/auxiliary heat source)
2.13.4 Min warm tank (w/auxiliary heat source)
2.13.5 dTMax
2.13.6 dTMin
3 Operation Menu ---------------------------------- Page 24
3.1 Automatic and Off operation
3.2 Manual testing operation
4 Operation Hours Menu ---------------------------------- Page 25
4.1 SD Card option ---------------------------------- Page 26
4.1.1 Initializing the SD Card
4.1.2 Configuring/Changing your system settings
4.1.3 Using the DataViewer software ---------------------- Page 27
4.1.4 Transferring data from the PC to the Control
4.1.5 Viewing graphs of system data ----------------------- Page 28
4.1.6 Exporting to Excel
5 Temperatures Menu ---------------------------------- Page 29
6 Special Functions ---------------------------------- Page 30
6.1 Pump exercise function
6.2 Dimmer function
6.3 Security function
7 Ohm to °F Conversion Chart for PT1000 Sensors
8 Controller Schematic ---------------------------------- Page 31
Warranty --------------------------------- Page 32 !

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• Large graphic display with backlight
• Easy to use interface (4 keys with scroll menu)
• Several languages available
• System set-up/configuration option using SD card
• Record and view system data (Energy, pump operation etc.) with SD card interface
• Graphic view for temperature, energy etc.
• 5 system configurations with several extra functions possible
• 5 Temperature sensors (PT1000 type)
• 2 Pump outputs (Standard or variable speed)
• 2 Analog Grundfos sensor inputs (Flow and Pressure)
• 1 Impulse flow meter input (for energy measurement)
• Pump exercise function
• 1 Extra output (to control back-up heat, heat dump…)
• Automatic, Off or Manual Test mode
• Monitors system for errors (short or open circuits to sensors, pump failure)
• Choice of collector sensor location (external or internal to collector)
• Collector protection (Freeze and over heat)
• Permanent memory storage
Features
Technical Features
!
Ambient temperature range for normal operation
32°F – 122°F
Electrical Protection
Installation Category
Pollution Degree
IP20
II
2
Fuse
Power supply
Maximum Power Consumption (with all outputs activated)
5A 120Vac ( 5x20mm)
120Vac +/- 10% 60Hz
4.2A (~504W)
Outputs:
P1 (Main pump with standard or PWM speed regulation):
P2 (Pump with standard or PWM speed regulation, Booster pump,
valve):
P3 (Extra, Additional heat, cooling…)
Triac 1.0A 120VAC.
Triac 1.0A 120VAC
Relay 2A 120VAC
Inputs:
T1 (Collector1):
T2 (Tank1):
T3 (Extra sensor):
T4 (Extra sensor, Tank2, Collector2):
T5 (Collector return):
T6 (Flow meter):
GDS1 (Grundfos Flow meter):
GDS2 (Grundfos Pressure sensor):
PT 1000 type
PT 1000 type
PT 1000 type
PT 1000 type
PT 1000 type
Impulse type (low voltage 5V)
Analog type
(Grundfos VFS)
Analog type
(Grundfos VPS)
Sensors delivered:
1 Collector sensor
1 Tank
1 Extra
PT1000 (1.5M 356°F)
PT1000 (3M 221°F)
PT1000 (3M 221°F)
Software version
Displayed during the start-up
Version xxxxxx
!

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4'
1'''''''''''2''''''''''''3'
T1_'_'_°F'
T2_'_'_°F'
T3_'_'_°F'
T4_'_'_°F'
'
P1_'_'_'%'
'_'_'_'BTU/h'
''''_'_'_'BTU'
!
T1'''''T4
T2
''T3
A'
SD
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Main Display
Circulation direction
Activation indicator
NOTE: System 4 shown in example; features
typical of all systems.
1: Simplified drawing of the installation.
- The pump symbols turn when pumps are activated.
- The filled triangles on the valve symbol indicate the circulation
2: Solar storage is working.
3: SD card storage is active.
4: Sensor temperature readings, pump speed indicators, power and stored energy
levels.
A: Keypad description
Navigation key up or plus key Navigation key right
Navigation key down or minus key Navigation key left
Main menu:
Press to enter the Navigation Menu.
(The active menu is highlighted in black at the top of the display)
Use the or buttons to navigate in the menus. The selection cursor ()will indicate the
current submenu.
Press to enter the selected menu and/or to return to the previous menu.
IMPORTANT NOTE: Not all submenus, selections, or options discussed in
this manual are available on all systems. Depictions of menus and
submenus shown here are representative of their actual appearance on
the control when the same series of settings as is described is followed.
  Information n !
Service
Settings
Operation
Operation h
Temperatures
DISPLAY (Screen, Keys, Menus)

7!
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1 Service Menu
1.1 Language:
- With (+) or (-)select the line “English” and press ( >) to highlight the line.
- Now you can change the language with (+) or (-), you have the choice between: English,
Deutsch, Français, Svenska, Spanish..
1.2 Time & Date:
- With (+) or (-) select the line “Date & Time” and press (>) to enter in the submenu time & Date.
- Now you can select the date or time line with (+) or (-), then press (>) to highlight the value
which must be adjusted.
Note: If power supply is lost, settings will be retained for 24 hours; after that time, the clock will
have to be reset.
1.3 System:
When the line is selected, press (>) to enter the submenu.
You have the choice between 5 systems with the option to add an extra function (see 1.4).
1.3.1 System 1
Basic system, with 1 tank, 1 pump, 1 collector array and 2 sensors.
With this system you can add extra functions with 1 or 2 sensors (Booster pump, Thermostat,
Cooling or Diffcontrol function).
  Service
------------------ English -- --
Time & date
System
Extra off
External sensor no
Protection func.
Flow meter no
  ---------Service -
Time: 5:41 PM
Day 12
Month 02
Year 2009
System
1
!
T1
T2
T1 _ _ _°F
T2 _ _ _°F
P1 _ _ _ %!

8!
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1.3.2 System 2
System with 2 tanks, 1 pump, 1 valve, 1 collector array and 3 sensors.
With this system you can add an extra function with 1 sensor (Thermostat, or Cooling function).
1.3.3 System 3
System with 2 tanks, 2 pumps, 1 collector array and 3 sensors.
With this system you can add an extra function with 1 sensor (Thermostat, or Cooling function).
1.3.4 System 4
System with 1 tank, 1 pump, 1 valve, 2 collector arrays with 2 different cardinal directions (East /
West) and 3 sensors. With this system you can add an extra function with 1 sensor (Thermostat,
or Cooling function).
1.3.5 System 5
System with 1 tank, 2 pumps, 2 collector arrays with 2 different cardinal directions (East / West)
and 3 sensors. With this system you can add an extra function with 1 sensor (Thermostat, or
Cooling function).
System
3
!
T1
T1 _ _ _°F
T2 _ _ _°F
T4 _ _ _°F
P1 _ _ _ %
P2 _ _ _ %!
!
T2 T4
System
4
!
T1 T4
T2
T1 _ _ _°F
T2 _ _ _°F
T4 _ _ _°F
P1 _ _ _ %!
System
5
!
T1 T4
T2
T1 _ _ _°F
T2 _ _ _°F
T4 _ _ _°F
P1 _ _ _ %
P2 _ _ _ %!
!
System
2
!
T1
T1 _ _ _°F
T2 _ _ _°F
T4 _ _ _°F
P1 _ _ _ %
!
T2 T4

9!
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1.4 Extra:
When the line is selected, press (>) to highlight the line.
You have the choice of 3 extra functions
(The choice is not the same with all systems, see the previous section)
1.4.1 Thermostat Function
This function may be used to connect an auxiliary or back-up heat source to your system.
Some possible auxiliary heat sources:
- Pump controls for Fuel or Gas burner (P3 provides 120V signal)…
- Electrical element inside the solar tank.
NOTE: If electrical usage exceeds rated capacity of P3 (2A maximum) an external
relay must be used.
Example:
•This function is available only if selected on the Extra Menu
1.4.2 Cooling Function
The cooling function may be used to cool down the primary solar tank during times of high
solar irradiation. This function allows for the accumulation of excess energy in another heat
storage area/device (Swimming pool, additional tank or heat sink).
Example:
•This function is available only if selected on the Extra Menu
T1
P3
P1
T3
T2
Extra Function used to control
the pump coupled with an
external burner.
P3
P1
T3
T2
Extra Function used to
control the pump to warm
up another basin.
T1

10!
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1.4.3 Diffcontrol Function:
The Diffcontrol function (only available on System 1) may be used to transfer heated water
from one storage tank to another independent of the solar collecting function.
This extra function allows separate temperature control of both tanks with user-defined
temperature settings (see Settings menu / 2.13).
Example #1 Additional tank w/no auxiliary heat source
Example #2 Additional tank w/auxiliary heat source
•This function is available only if selected on the Extra Menu
P3
P1
TC = T3
T2
Diffcontrol Function used to control the
pump to transfer heated water from an
external source to the system tank.
T1
TW = T4
Other heating system with tank. (Fuel,
pellets, wood ….)
P3
P1'
T2
Diffcontrol Function used to control the
pump to warm up a second tank with
temperature control on the system tank.
T1
TC = T3
TW = T4

11!
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1.5 External Sensor:
This option is useful for collectors that require the sensor to be mounted on the piping external to
the collector manifold.
Select External sensor and press (>) to highlight the line.
- Now select yes [using the (+) or (-) keys] if the collector sensor is not mounted directly on the
collector (e.g. on the return pipe). This function will energize the collector pump for 30 seconds
twice per hour to ensure that the collector fluid temperature is accurately measured and avoid
collector short cycling.
1.6 Protection function :
- Once the line is selected, press (>) to enter the submenu.
The Maxtemp setting is used in the following three protection functions which are designed to
prevent overtemp in the collectors. If one or more of the protection functions are activated, the
system will automatically activate when the collector temperature reaches the Maxtemp
threshold regardless of the tank temperature settings.
(Maxtemp is adjustable from 230°F to 302°F with factory default set at 248°F)
For safety, however, the pumps will automatically shut down when the water temperature in the
tank reaches 203°F.
  Service--------- ---- --
English
Time and date
System
Extra off
External sensor no--
Protection func.
Flow meter no
  Service------------------ --- --
English
System
Extra off
External sensor no
Protection func.
Flow meter no
  Protection func.----------- ---
Collector
Max temp 248°F
Cooling no
Overheat prot. no
Freeze prot no
Code listed and approved hot water tempering valves should be installed
throughout the system to ensure that water temperatures at the points of use are
within a safe and acceptable range.

12!
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1.6.1 Cooling:
This option is for the protection of the collector fluid. It activates the solar pump (P1 or P2)if the
temperature on the collector arrays (T1 or T4)exceeds the collector Max temp value even if the
set maximum temperature in the tank is exceeded. The circulation stops when temperature has
dropped 20°F.
(The pumps will be stopped if the water temperature in the tank reaches 203°F).
- When Yes is selected on the Cooling function, the Recooling function becomes accessible.
1.6.1.1 Recooling
When Recooling is set to YES, the following safeguards are in place:
When the water temperature inside the tank is above Maxtemp tank1 (refer to section 2.1)
and the collector temperature is 20°F lower than the actual tank temperature (T2), the pumps
will activate to cool the tank through the collector array (typically at night).
The pumps will run until either
•the temperature of the tank drops below the Maxtemp tank1 setting, or,
•the temperature difference between the tank and the collector array is less than 4°F.
1.6.2 Overheat protection (should only be used in conjunction with Cooling function):
When set to YES,this function will stop all collector circulation (P1 and P2) when the collector
temperature registers more than 20°F above the collector Maxtemp setting. This function is
intended to protect any temperature sensitive system components (Tank, lines, pumps...) in the
event of the failure of, for example, tank sensor T2.
1.6.3 Freeze protection:
When set to YES,this option will keep the solar panel temperature (T1 or T4)above the Freeze
Protection Temperature setting level (see below) by activating the pump (P1 or P2).
•This option could be used to reduce snow accumulation on the panel for increased
efficiency during the day or to avoid potential damage due to freezing.
Note: This function uses energy from the storage tanks and may result in reduced available
thermal capacity.
- Use (+) or (-) to select the Freeze prot.
-Press (>) to select.
- Use the (+) or (-) buttons to select yes.
- Adjust the Freeze prot temp setting to the desired temperature.
(Adjustable from -4°F to + 45°F with factory default of 0°F)
  Protection func.------------- -----
Collector
Max temp 248°F
Cooling yes-----
Recooling no
Overheat prot. no
Freeze prot no
  Protection func.----------- ---
Collector
Max temp 248°F
Cooling yes
Recooling yes
Overheat prot. no
Freeze prot yes-----
Freeze prot temp 38°F

13!
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- Press (>) to highlight this line if you
want to reset all settings to their
factory default.
-Select “yes” with (+) key.
- Press (<) repeatedly to return to
the main menu.
- All settings are now returned to
factory defaults.
!
IMPORTANT NOTE: The factory default setting on the Operation Menu is OFF. This prevents
system components (P1,P2, P3) from operating until system is set up. To turn on the system,
change the setting to AUTOMATIC (Active). See Operation menu / 3.1 for further info.
!
1.7 Flow meter:
The flow meter is used for energy measurement and system monitoring.
If no flow meter is installed (factory default setting) you must manually enter the pump flow in
gallons/minute using the (+) or (-) buttons. The manufacturer’s specification is generally found
in the pump literature or on the manufacturer’s website.
(Adjustable from 0.1 to 26.4 gal/min with factory default set at 2.6 gal/min)
The flow can also be approximated from a mechanical flow meter (if installed).
- If impulse flow meter is installed (on T6 / PF) select “impulse”, then you must enter with (+)
or (-) the flow meter characteristics in gal / impulse. (Adjustable 0.26 to 6.6 gal/imp with factory
value 2.6 gal/imp)
Flow Monitoring
System flow is monitored whether or not a flow meter is installed.
If no flow meter is installed
•the difference between collector temperature and tank temperature is used as
indication of an error in the flow.
•A difference of greater than 140°F for more than 30 minutes is interpreted as an error.
When a flow meter is installed
•If no flow has been measured for ten minutes after the pump engages, an error is
indicated.
When an error is detected, an error message is shown in the display.
1.8 Reset to Factory default settings:
  Service----------- ---- --
Time and date
System
Extra off
External sensor no
Protection func.
Flow meter no
Flow (gal/min) 2.6 0
  Service----------- ---- --
English
System
Extra off
External sensor no
Protection func.
Flow meter Impulse-
Gallons / impulse 2.6
  Service------------ ---- --
System
Extra off
External sensor no
Protection func.
Flow meter yes
Gallons / impulse 2.6
Factory setting no----

14!
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1.9 Reset op time:
To reset the all of the operation hours to zero:
Press (>) to highlight the line.
Select “yes” with (+) key.
Press (<) repeatedly to return to the main menu.
Caution:
This will erase all previously recorded data (Power, Energy, temperature…)
1.10 Time graph temp:
Adjusts the graphical scale for the Temp vs. Time graphs (adjustable from 1 to 60 minutes).
1.11 Time graph op:
Adjusts the graphical scale for the Operation h menu vs. time graphs (adjusts from 1 to 48
hours).
1.12 Calibration of sensors:
On this submenu you can calibrate all the temperature sensors connected to your system.
CAUTION: Check the temperature with a calibrated thermometer before adjusting.
(Calibration range is from -6°F to +5°F with factory default setting of 0°F)
  Calib sensors------------ -
--- -- Sensor T1 0°F- -
Sensor T2 0°F
Sensor T3 0°F
Sensor T4 0°F
Sensor T5 0°F
  Service-------- ---- --
Extra off
External sensor no
Protection func.
Flow meter yes
Gallon / impulse 2.6
Factory setting no
Reset op time no-
!
  Service----------------- ---
External sensor no
Protection func.
Flow meter yes
Gallon / impulse 2.6
Factory setting no
Reset op time no
Time graph temp 5m
  Service------------------ -
Protection func.
Flow meter yes
Gallon / impulse 2.6
Factory setting no
Reset op time no
Time graph temp 5m
Time graph op 1h
See Temperature
(section 5) for
more detailed
information.
See Operation h
(section 4) for
detailed
information.!

15!
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1.13 US Version:
This selection allows you to select the units of measurement that will be displayed on the control.
YES = (US Version): °F, 12H am/pm, Gallons, BTU/h and kBTU
NO = (EU Version): °C, 24H, Litres, kWh
1.14 Pump P1
This function allows you to choose the type of the pump control used on the output P1.
To change the pump type, press (>)then select your choice with the (+) or (-) buttons.
There are 3 choices:
No SC - For standard pump without speed control.
Phase SC (PhAC SC on Display) - For standard pump with speed control.
- The speed regulation is done by TRIAC (phase control).
- Check the following before changing the setting:
•Whether or not your pump will work with this type of speed regulation,
•The minimum speed rating of the pump, and,
•The speed selector on your pump must be put on the maximum position.
•See Section 2.8 Min rev pump for further applicable settings and information.
PWM SC - For PWM pump with speed control.
- The speed regulation is done by PWM control.
•Available with GRUNDFOS SOLAR PM type.
Note: If you have selected PWM SC on the Pump P1 or Pump P2, the
pump speed will begin to decrease when the dT value is under the
dTMax setting for the appropriate tank. At the applicable dTmin setting,
the pump will shut off.
  Service----------- -------
Gallon/impulse 2.6
Factory setting no
Reset op time no
Time graph temp 5m
Time graph op 1h
Calib sensors
US version yes
  Service---------- - ----- -
Factory setting no
Reset op time no
Time graph temp 5m
Time graph op 1h
Calib sensors
US version yes
Pump P1 No SC
Speed of pumps'
dTMin'
dTMax'
!
100%
'
0%
'
dTRange / 2'
!
Speed range / 2'
!

16!
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1.15 Pump P2
This function allows you to choose the type of the pump used on the output P2.
To change the pump type, press (>) then select your choice with the (+) or (-) buttons.
Pump P2 settings are the same as described in the previous section for Pump P1 (No SC,
Phase SC, PWM SC).
In addition, Pump P2 offers a Boost setting for use with a booster pump, commonly used in
drainback systems. This setting should be used when a second pump is installed in series on the
primary circuit to assist Pump P1 at system start-up.
Run time for the booster pump can be adjusted on the Setting menu (see Setting / 2.9 Boost
time).
Important Note: Boost is only available for System 1 (see 1.3.1 System 1)
1.16 GDS1:
Your controller has 2 special inputs for analog GRUNDFOS sensors (Type VFS Flow sensor or
VPS pressure sensor).
- The Flow sensor is used for energy measurement and monitoring
- The Pressure sensor is used only to monitor the pressure on the primary circuit.
GDS1 may be connected to either a flow or pressure sensor.
Four different GF Flowsensor models are supported by GDS1:
VFS1 - 12 l/min (3.2 gal/min) Flow sensor
VFS 2 - 40 l/min (10.6 gal/min) Flow sensor
VFS 5 - 100 l/min (26.4 gal/min) Flow sensor
VFS 10- 200 l/min (52.8 gal/min) Flow sensor
Three different GF Pressures sensor models are supported by GDS1:
VPS 0 – 4 bar (58 psi) Pressure sensor
VPS 0 – 6 bar (87 psi) Pressure sensor
VPS 0 – 10 bar (145 psi) Pressure sensor
•To change the sensor type, press (>) then select either your choice or NC (Not Connected) with
the (+) or (-) buttons
You can also check the operation of the sensor on the submenu 3.2 Manual testing.
See the controller schematic for more information on the electrical connection.
  Service----- -------
Reset op time no
Time graph temp 5m
Time graph op 1h
Calib sensors
US version yes
Pump P1 No SC
Pump P2 No SC
  Service------ -------
Time graph op 1h
Calib sensors
US version yes
Pump P1 No SC
Pump P2 No SC
GDS1 NC-----
GDS2 NC

17!
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1.17 GDS2:
This input is reserved for connection of a Pressure sensor to monitor the primary circuit.
Three GF Pressure sensors are supported on the GDS2 port:
VPS 0 – 4 bar (58 psi) Pressure sensor
VPS 0 – 6 bar (87 psi) Pressure sensor
VPS 0 – 10 bar (145 psi) Pressure sensor
•To change the sensor type, press (>) then select either your choice or NC (Not Connected) with
the (+) or (-) buttons
You can also check the operation of the sensor on the submenu 3.2 Manual testing.
See the controller schematic for more information on the electrical connection.
1.18 Priority Tank:
This option will only display if you are configuring a system with two tanks (as discussed in
sections 1.3.2 / System 2 and 1.3.3 / System 3)
Designate one of the system tanks as priority (tank1 or tank2). The priority tank will always be
activated first unless one of the following situations occur.
The second tank will become operational when:
The priority tank reaches the Maxtemp value entered on the Setting menu (Section 2)
for that particular tank (if tank1 is designated priority, the applicable setting will be the
Maxtemp tank1; if tank2 is priority, Maxtemp tank2).
Note: When the temperature in the priority tank falls below the temperature set
for MinTemp Prio (Setting menu / 2.7 Mintemp prio tank), priority will switch
back from the second tank to the original priority tank.
  Service------------ -------
Calib sensors
US version yes
Pump P1 No SC
Pump P2 No SC
GSD1 NC
GSD2 NC
Prio tank 1--
  Service------ -------
Time graph op 1h
Calib sensors
US version yes
Pump P1 No SC
Pump P2 No SC
GDS1 NC
GDS2 NC-----

18!
!
  Settings -------------
Maxtemp tank1 149°F
dT Max tank1 49°F
dT Min tank1 38°F
Maxtemp tank2 149°F
dT Max tank2 49°F
dT Min tank2 38°F
Min rev pump 100%
Note:!!If!the!installed!system!
has!two!tanks,!the!adjacent!
graph!is!also!valid!when!using!
the!sensor!information!from!
the!second!tank.!
2 Setting Menu:
This menu allows you to set all adjustable parameters of your system.
Not all options are available with all systems.
2.1 Maxtemp tank1:
Maximum value of desired water temperature in tank1 during normal operation.
(Adjustable from 59°F to 203°F with factory default set at 149°F)
2.2 dTMax tank1:
Difference (ΔT) between collector temperature (T1) and tank1 temperature (T2) that will
automatically engage pump1.
(Adjustable from 7°F to 72°F with factory default set at 12°F)
2.3 dTMin tank1:
Difference (ΔT) between collector temperature (T1) and Tank1 temperature (T2) that will
automatically disengage pump1.
(Adjustable from 4°F to 63°F with factory default set at 5°F)
NOTE: dTMin will always be 3-7°F less than dTMax
2.4 Maxtemp tank2: Only applicable on systems with two tanks (as discussed in sections 1.3.2 /
System 2 and 1.3.3 / System 3).
Sets the maximum value of desired water temperature on the tank2.
(Adjustable from 59°F to 203°F with factory default set at 149°F)
2.5 dTMax tank2: Only applicable on systems with two tanks (as discussed in sections 1.3.2 /
System 2 and 1.3.3 / System 3).
Difference (ΔT) between collector temperature (T1) and tank2 temperature (T4) that will
automatically engage pump1 with system2 or pump2 with system3.
(Adjustable 7°F to 72°F with factory default set at 12°F)
2.6 dTMin tank2: Only applicable on systems with two tanks (as discussed in sections 1.3.2 /
System 2 and 1.3.3 / System 3).
Difference (ΔT) between collector temperature (T1) and tank2 temperature (T4) that will
automatically disengage pump1 with system2 or pump2 with system3.
(Adjustable from 3°F to 63°F) with factory default set at 5°F)
NOTE: dTMin tank2 will always be 3-7°F less than dTMax tank2
Tank1
T2 (°F)!
dTMin!
dTMax!
!
P1!
Collector
T1 (°F)!
Maxtemp
Tank1!
!
dTMax!
!
dT = T1 – T2'
!
100%
0%!
dTMax!
!
Pump speed regulation!

19!
!
2.7 Mintemp prio tank:
This will only display on systems configured with two tanks (as discussed in sections 1.3.2 /
System 2 and 1.3.3 / System 3)
This option allows the user to define the minimum temperature setting for the priority tank (as
designated in the process described in the Service menu / 1.18 Priority Tank). When the
temperature in the priority tank falls below this setting, the system will switch back from the
second tank (temporarily deemed priority due to overheating in the main tank) to the original
priority tank.
(Adjustable from 32°F to the MaxTemp tank setting for the priority tank with factory default set
at 32°F)
2.8 Min rev pump:
This option will only display if Phase Speed Control (Phase SC) is selected on the Service menu
1.14 Pump P1 or 1.15 Pump P2.
- Highlight Min rev pump and press (>)
- Use the (+) or (-) buttons to set the minimum speed of the pumps
(Adjustable from 30% to 100% with factory default set at 100%)
The speed of the pump will start to decrease when the dT value is under the dTMax setting for
the appropriate tank; the Min rev pump setting will come into effect at the applicable dTmin
setting.
Speed of pumps'
dTMin'
dTMax'
!
100%
'
Min rev pump value
'
dTRange / 2'
!
Speed range / 2'
!
  Settings ---------------
Maxtemp tank1 149°F
dT Max tank1 49°F
dT Min tank1 38°F
Maxtemp tank2 149°F
dT Max tank2 49°F
dT Min tank2 38°F
Min rev pump 100%
  Settings ---------------
Maxtemp tank1 149°F
dT Max tank1 49°F
dT Min tank1 38°F
Maxtemp tank2 149°F
dT Max tank2 49°F
dT Min tank2 38°F
Min temp prio tank 85°F
WARNING: Setting Min rev pump below 50% may prevent pump operation under various
conditions (e.g. high head pressure due to system design or cold/degraded glycol solution). !

20!
!
2.9 Boost time: Available for System 1 only
This option will display only if the Boost setting is chosen for Pump P2 on the Service menu /
Pump P2 (See Section 1.15).
- Highlight P2 Boost time and press (>)
- Use the (+) or (-) buttons to set the duration for the running time of P2
(Adjustable from 1 to 10 minutes with factory default set at 5 minutes)
2.10 Mintemp Collector:
This option allows you to set the minimum collector temperature required for solar loading.
(Adjustable from -9°F to 210°F with factory default set at -9°F)
  Settings --------------
Maxtemp tank2 149°F
dTMax tank2 49°F
dT Min tank2 38°F
Min rev pump 100%
Mintemp prio 85°F
Mintemp coll. 32°F
  Settings --------------
dT Max tank1 49°F
dT Min tank1 38°F
Maxtemp tank2 149°F
dT Max tank2 49°F
dT Min tank2 38°F
Min rev pump 100%
P2 Boost time 5min
Tank1
T2 (°F)!
dTMin'
dTMax'
!
P1
Main
pump!
Collector
T1 (°F)!
Maxtemp
Tank1'
!
dTMax'
!
dT = T1 – T2'
!
100%
0%!
dTMax'
!
Boost time
(P2 running time)!
P2
Booster
pump!