Full Gauge Controls Microsol FLT Advanced User manual

1. DESCRIPTION
2. APPLICATION
3. TECHNICAL SPECIFICATIONS
The Microsol FLT Advanced is a digital thermostat for solar heating that controls
a water circulation pump through the temperature differential between the solar collector
and the pool. It also features an auxiliary output, linked to the clock and events schedule,
through which the pool can be filtered at predefined times. The controller includes
functions to prevent overheating and freezing of water on the solar collector. Protected
access to configuration parameters is also provided.
The Microsol Advanced line is characterized by its unique design for use in
residential environments, by the easiness of operation with keys for easy access to the
controller's main resources and by the use of the custom display. The display technology
employed allows presenting in a complete and simple manner the solar heating system's
information, such as: output status, pump operation mode, and sensor position and
temperature.
- Solar heating and filtering for pools.
- Power: Microsol FLT Advanced 230Vac +-10%(50/60Hz) or version 115Vac +-
10%(50/60Hz)
- Operation temperature: 0 to 40ºC
- Operation humidity: 10 to 90% UR (without condensation)
- Sensors: The Microsol FLT Advanced has 2 sensors:
Sensor T1: Solar Collector – SB59 Sensor, metal tip, Silicone, 1m
Sensor T2: Pool – SB41 Sensor, plastic tip, 2m
- Control temperature: Sensor T1: -50 to 200ºC / -58 to 392ºF
Sensor T2: -50 to 105ºC / -58 to 221ºF
- Resolution: 0.1ºC between -10 and 100ºC and 1ºC in the remainder of the range
1ºF in all of the range
- Control output: The Microsol FLT Advanced has two relay outputs:
PUMP - Relay output, max. 1HP in 220Vca (½ HP in 127 Vca)
AUX - Relay output, max. 1HP in 220Vca (½ HP in 127 Vca)
- Dimensions: 104 x 148 x 32 mm
- Display: LCD 2.75'' with backlight
:
5. OPERATIONS FOR DOMESTIC USER
5.1 KEY MAP
The controller has easy-access to user resources. Contains table with description of the
following:
Short touch: adjust the pool/reservoir heating temperature
Long touch (4 seconds): access to advanced settings
Long touch (see F14 parameter): enables/disables function block
Short touch: switches temperature display (DIF, T1, T2) for 10 seconds
Short touch: switches pump mode (OFF / AUT / MAN)
Short touch: changes filtering mode (AUT / MAN)
Long touch (4 seconds): enables/disables filtering (OFF) mode
Short touch: accesses hour and day settings menu
Long touch: (4 seconds): accesses settings menu for event schedule
DIFFERENTIAL THERMOSTAT
FOR SOLAR HEATING
Ver. 01
SET
SET
FLT Advanced
4. INDICATIONS AND SCREEN
4.1 PRESENTATION
1
2
3
4
5
6
7
8
9
10
11
12
Pump mode key
Filtering mode key
Clock key
Lowering key
Set key
Increasing key
Indication of the pump operation mode
Indication of operating mode of the filtering output
Controller signals
Representation of the heating system and filtering
Lower display numbers
Upper display numbers
4.2 INDICATIONS
SET
LOC
In programming, cleared parameter setting
In programming, blocked parameter setting
Fahrenheit scale temperature Indication
Celsius scale temperature Indication
Pump turned on due to cooling function
Pump turned on due to antifreeze function
Pump turned on due to vacuum tube function
Pump turned on due to temperature differential (T1-T2)
Pump outlet turned on
Filtering pump output on
T1 Sensor Position - solar collector
T2 Sensor Position - thermal reservoir
Indicates overheating occurrence T1
Indicates sensor error occurrence T1
Indicates sensor error occurrence T2
Function block setting
Before noon (standard clock 12pm)
After noon (standard clock 12pm)
5.3 WATER PUMP OPERATION MODE
For every short touch on key the water pump operation mode is switched. The water
circulation pump between the solar collector and the thermal reservoir can operate in three
distinct modes. A description follows:
Obs.: In the pump mode settings, the controller takes on the new mode 5 seconds after its
selection. This also is the time necessary for the parameter to be stored in its memory.
When the MAN mode is selected (MANUAL), the operation mode remains in this state for
the period of 6 hours (fixed time). After, the controller takes on the AUT mode
(AUTOMATIC). If you wish to return to AUT mode before 6 hours, press the key at any
time.
off
PUMP
AUT
PUMP
MAN
PUMP
5.4 FILTERING OPERATING MODE
With each short press of the button you can change the operating mode of the filtering
output between AUT and MAN modes.
AUX
AUT
AUX
MAN
OFF = Circulation pump always turned off
AUT = Circulation pump in automatic mode
operating according to parameter settings
MAN = Circulation pump turned on
am
pm
+
+
+
SET
5.2 POOL/RESERVOIR HEATING TEMPERATURE (SENSOR T2)
Sets the comfort temperature of the pool or thermal reservoir. After reaching
this temperature, the water circulation pump is turned off, avoiding thermal
discomfort.
To adjust this parameter, short press the SET button. Use the and keys
to adjust the value. To confirm, short press the SET button and the value will
be saved in the controller memory. This parameter can be adjusted between
0.0 and 105 °C or between 32 and 221 °F.
F
SET
1
2
3
6
5
4
7
8
12
9
10 11
F
F
F
F
F
MAX
FILTER
am pm
SET LOC
AUX
AUT off MANAUT off MAN
PUMP
am pm
MAX
FL
T
F
FI
LTE
R
AUX
AUT
AUT
PUMP
Obs: the sum of the
loads should not
surpass 24A
Attention: In this mode the pump is maintained turned on,
ignoring the protection functions and temperature sensors.
Note: When adjusting the filtering mode, the controller changes into the new mode 5
seconds after your selection. This is also the time required for the parameter to be stored in
its memory.
Manual mode is used when you wish to filter the pool outside the hours set in the events
schedule.
AUT = Filtering in automatic mode, operating
according to the configuration of the events
schedule.
MAN = Filtering in manual mode, output remains
on for the time set in [,F10]- Filtering manual
override time, returning to AUT (automatic) mode
after this time has elapsed.
MCSOLADVANFLT01-02T-14494

In order to access the Time and Day menu, just give a short touch on the key. Through
the or keys it is possible to navigate among the parameters. In order to edit them press
the SET key and through the or keys update its value. By pressing once again the
SET key, you return to the parameter menu.
Clock - Time settings.
Day - Day of the week settings.
Adjustable from 1 (Sunday) to 7 (Saturday).
NOTICE:
The controller is equipped with a lithium rechargeable battery in order to keep its
date and time in the case of an energy shortage. A fully charged battery can provide
enough energy to keep the time and date running for some weeks. If the controller
remains turned off for a prolonged period of time, it will display the message
[ECLO], in this case the controller's date and time has been lost due to low battery
and the user must adjust it again. To completely recharge a dischaged battery, keep
the controller turned on for at least 10 hours.
Obs.: In the parameter menu, to leave and return to normal operation (preferential
indication of temperature and time) maintain the SET key pressed (long touch) until the
message [----].appears. When the Fahrenheit temperature scale is selected, the
clock acquires the 12h standard, and the AM and PM icons are used for time indication. In
this scale, the Time and Day messages of the parameter description are replaced by Time
and Day in the controller display.
5.4.1 FILTERING OFF MODE
5.5 TIME AND DAY SETTINGS
To enable/disable filtering off mode, the button should be pressed for 4 seconds.
OFF: filtering turned off. In this mode, the events schedule is
ignored, the filtering output turned off, resulting in reduced
power consumption.
Note: When adjusting the filtering mode, the controller changes into the new mode 5
seconds after your selection. This is also the time required for the parameter to be stored
in its memory.
5.6 EVENT SCHEDULE SETTINGS
4 segundos
off
AUX
If it is not necessary to use all 4 events, you should set these in the turned off state, by just
increasing the final time until [,OFF]appears. It is possible to set an event that begins in
one day and finishes in another. To do so you should raise the final event time until
[,CRo]appears and set on the following day the initial event with time on [00:00].
To set the event schedule associated to the support outlet, you should hold the key for
4 seconds.
The schedule allows setting up to 4 events for each day of the week, as the programming
performed in parameter [,F11] - Filtering events schedule operating mode. Each event
is comprised by a final and initial schedule.
The event schedule gets factory settings in mode [,1t7], same events for each day of
the week, and the schedules are defined as follows:
am pm
Hold for
4 sec.
2 seconds
am pm
am pm
SET
Long touch
Preferential
indication
Weekly
programming
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
SET
Short touch
SET
Long touch
According to the set operation mode, the following programming possibilities may be
presented:
Programmed case [,F11] = [,1B1]
Programmed case = [,2T6] [,F11]
SET
Adjustment
Short touch
SET
Adjustment
Short touch
SET
Adjustment
Short touch
SET
Adjustment
Short touch
am pm
Hold for
4 sec.
2 seconds
SET
Long touch
Preferential
indication
Weekday
Programming
am pm
am pm
Sunday
Weekdays
Saturday
SET
Short touch
SET
Long touch
SET
Adjustment
Short touch
SET
Adjustment
Short touch
SET
Adjustment
Short touch
SET
Adjustment
Short touch
Programmed case [,F11] = [,1T7]
am pm
Hold for
4 sec.
2 seconds
SET
Long touch
Preferential
indication
Daily
programming
SET
Adjustment
Short touch
SET
Adjustment
Short touch
SET
Adjustment
Short touch
SET
Adjustment
Short touch
5.8 FUNCTION BLOCK
For security reasons and in order to avoid unauthorized people changing the controller
settings, there is the function block resource. With that setting activated, the parameters
cannot be changed, but they can be displayed, however. In the block condition, upon trying
to change the value of a parameter the message ‘‘[,LOC][,,ON]no display" will be
displayed.
To enable/disable the function block you should hold the key for the time set in parameter
[,F14] – Time for function block. The icon indicates the block state to the user, in case
it is accessed, it indicates that the function block is active.
HINT: with active function block one avoids that children, visitors or curious people change
the operation mode or the controller parameters. When some change is needed, just hold
the key to enable/disable this resource.
Initial time for the
1st event
End time for the
1st event
Initial time for the
2st event
End time for the
2st event
End time for the
3st event
Initial time for the
3st event
End time for the
4st event
Initial time for the
4st event
1 second
1 second
1 second
5.7 VIEW OTHER TEMPERATURES
To switch the temperature display of sensor T1, sensor T2 or the differential sensor (T1-
T2) give short touches on the key until the desired temperature is displayed. In the upper
display numbers the temperature measure is presented and in the lower display numbers,
the sensor description. The selected temperature will be displayed during 10 seconds.
After, which the preferential indication is again displayed, as set in parameter [,F01] –
Preferential Indication.
6. ADVANCED OPERATIONS FOR THE INSTALLER (TECHNICAL USE)
6.1 CONTROLLER PARAMETERS CHANGE
Access the settings menu holding the SET key for 4 seconds until [FuNc] appears.
After that [Code] will appear and then press once again the SET key, short touch. Use
the or keys to enter the access code value, 123, and when ready press the SET key
once again (short touch).
Use the or keys to select the desired function. With a short touch to the SET key it’s
possible to edit its value. Use the or keys to change the value, and when ready give a
short touch on the SET key to memorize the set value and return to the function menu.
To leave the menu and return to normal operation (temperature indication) hold the SET
key (long touch) until [----] appears.
- Upon accessing the parameter settings, the upper display will flash and over
it the SET icon is displayed, indicating that it is possible to change the
parameter value.
Observations:
SET
am pm
- If the 123 code has not been inserted, upon accessing the parameter settings
the icon will be displayed over the upper display, indicating that the
setting is locked.
- With active function block, upon pressing the or keys to change the
function value, the controller will display the [,LOC][,,On]message on
the screen and it won't be possible to perform the parameter setting.
LOC
LOC
LOC
F
F
Saturday

6.2 TABLE OF PARAMETERS
Min Max Unit Min Max Unit
CELSIUS FAHRENHEIT
Fun
[CoDE]
[,F01]
[,F02]
[,F03]
[,F04]
[,F05]
[,F06]
[,F07]
[,F08]
[,F09]
[,F10]
[,F11]
[,F12]
[,F13]
[,F14]
[,F15]
6.3 DESCRIPTION OF PARAMETERS
[Code]– Access code (123):
Required when you want to change the advanced configuration parameters. This code is not
required to only view the set parameters.
[,F01]– Preferred indication:
This function allows you to choose the temperature that is normally shown on the display. You
can choose between:
[,DIF]– T1-T2 differential. Shows the temperature difference in degrees between the
solar collector (T1) and pool (T2).
[,,T1] – Temperature of the collectors (T1).
[,,T2] – Temperature of the pool/thermal reservoir (T2).
[,F02]– Differential (T1-T2) to turn on the pump:
Allows you to configure the temperature difference between the solar collector and the pool at
which the circulation pump is switched on. As the collectors receive energy, the temperature of
sensor T1 increases. When this temperature is a set value above the temperature of sensor T2,
the pump is switched on and circulates the heated water, storing it in the pool.
[,F03]– Differential (T1-T2) to switch off the pump:
Allows you to configure the temperature difference between the solar collector and the pool at
which the circulation pump is switched off. With the pump on, the temperature difference
between the collector and the pool (T1-T2) tends to decrease. When this value falls to a set
value, the pump is switched off, stopping the circulation of water.
[,F04]– Antifreeze temperature (T1) to switch the pump on:
When the temperature of the collectors (T1) is very low (e.g. winter nights), the pump is switched
on according to the temperature set in this parameter, in order to prevent water from freezing in
the solar collector and damaging them. The hysteresis of this control is fixed and set at 2.0 ºC.
To disable this function, move the setting to the minimum until [,,No] appears.
[,F05]– Minimum antifreeze time:
This minimum time with the pump switched on serves as a safety measure to ensure that the
water passes by all the collectors. Even if the temperature of the T1 sensor exceeds the
antifreeze temperature ([,F04]parameter), the controller respects the time programmed in
this parameter. This function is often used in large projects due to the number of installed plates.
To disable this function, move the setting to the minimum until [,,No] appears.
[,F06]– Overheating temperature (T1) to switch off the pump:
When the temperature in the collectors (T1) is above the value set in this parameter, the pump is
switched off to prevent the overheated water circulating through pipes and damaging them, if
PVC pipes are used, for example. The hysteresis of this control is fixed and set at 2.0 ºC.
[,F07]– Cooling (T2):
This is intended to cool the pool during the night whenever the heating temperature ([TEMP]
parameter) is exceeded and the difference between the collector (T1) and reservoir (T2)
reaches -4.0 °C (fixed). The pump is then switched on, using the collector as a radiator to cool
the pool water. When the differential (T1-T2) is less than -2.0 °C (fixed) or the temperature (T2) is
lower than the heating temperature of the reservoir ([TEMP] parameter), the pump is switched
off.
[,F08]– Vacuum tube function:
When enabled, this function switches the pump on for 20 seconds (fixed) for every 30 minutes
(fixed) the pump is switched off, while the collector temperature (T1) is above 20.0 °C (fixed) and
the temperature differential (T1 -T2) is positive.
Some models of vacuum tube collectors do not allow direct measurement of the collector
temperature since they are not set up for immersion sensors. For correct measurement of the
water temperature at the collector output, there must be a minimum flow of water. For this
reason, the solar circuit must switch on the pump briefly, at regular intervals, so that the water
heated by the collector reaches the T1 sensor.
Note: The controller prioritizes the protection settings (overheating), ignoring the vacuum tube
function in the event both of these functions are called at the same time.
[,F09]– Hysteresis of the pool heating temperature (T2):
If the pump is switched off due to reservoir heating ([TEMP]), this function allows you to set a
temperature range within which the pump will remain switched off.
For example: If set to [temp] = [,30.0] and [,F09] = [,,1.0], the pool heating will be
switched off when the temperature of sensor T2 reaches 30.0 °C, and will only switch on in order
to heat when the temperature falls below 29.0 °C (30.0 - 1.0 = 29.0).
Access code
Preferred indication
Differential (T1-T2) to turn on the pump
Differential (T1-T2) to switch off the pump
Antifreeze temperature (T1) to switch the pump on
Minimum antifreeze time
Overheating temperature (T1) to switch off the pump
Cooling (T2)
Vacuum tube function
Hysteresis of the pool heating temperature (T2)
Filtering manual override time
Filtering events schedule operating mode
T1 sensor indication offset
T2 sensor indication offset
Function lock time
Intensity of the display backlight
0
DIF
1.0
1.0
no (-19)
no (0)
0.0
Off
Off
0.1
0
1b1
-5.0
-5.0
4
1
999
T2
40.0
40.0
10.0
600
200
On
On
20.0
24
1t7
5.0
5.0
30
10
-
-
ºC
ºC
ºC
s
ºC
-
-
ºC
H
-
ºC
ºC
s
-
0
T2
8.0
4.0
8.0
60
90.0
Off
Off
1.0
8
1t7
0.0
0.0
4
8
0
DIF
1
1
no (-2)
no(0)
32
Off
Off
1
0
1b1
-9
-9
4
1
999
T2
72
72
50
600
392
On
On
36
24
1t7
9
9
30
10
-
-
ºF
ºF
ºF
s
ºF
-
-
ºF
H
-
ºF
ºF
s
-
0
T2
14
7
46
60
194
Off
Off
1
8
1t7
0
0
4
8
[,F10]– Filtering manual override time:
Used when you wish to activate the filtering output outside the hours set in the events schedule.
When using manual override, the mode returns to AUT (automatic) after the time programmed in
this parameter. To disable this function, move the setting to the minimum until [,,No] appears.
[,F11]– Filtering events schedule operating mode:
Sets the operating mode of the events schedule:
[,1b1]– Weekly Programming – in this mode, the instrument can set up to 4 different
events for each day of the week.
[,2t6]– Weekday Programming – in this mode, the instrument keeps events the
same on weekdays (Monday to Friday) and allows you to program different events for
Saturday and Sunday.
[,1t7]– Daily Programming – in this mode, the instrument keeps the events the same
for every day of the week.
[,F12]– T1 sensor indication offset:
[,F13]– T2 sensor indication offset:
Used to compensate for possible deviations in the T1 sensor (collector) or T2 sensor (pool)
reading as a result of sensor replacement or changing the cable length.
[,F14]– Function lock time:
Sets the time that the increment button must be pressed in order to lock/unlock parameter
changes. For more information see item 5.8 – Function Lock. To disable this function, move the
setting to the minimum until [,,No] appears.
[,F15]– Intensity of the display backlight:
Sets the intensity of the display backlight in order to set contrast.
7. SIGNALS
- Motive: Sensor 1 disconnected or out of the specified range.
- Motive: Sensor 2 disconnected or out of the specified range.
- Motive: Dis-programmed clock due to prolonged energy absence.
- Corrective measures: Check the connections and sensor operation.
- Corrective measures: Check the connections and sensor operation.
- Corrective measures: Adjust time and day, see article 5.5.
am
- Motive: Filtering manual override with setting of parameter
[,F10]=[,,no].
- Corrective measures: Adjust parameter value F10 - Filtering manual
override time
Obs.: In the occurrence of any error information the controller signals the user, flashing the
display's backlight shortly, in order to grab attention.
6.4 UNIT SELECTION
To define the temperature unit with which the instrument is going to operate you should
access the [Code] function (see article 6.1 to find out how to access this function), insert
the 231 code and press the key. The user may select the unit by pressing the keys or ,
where the messages [,=C,]or[,=F,]are alternated. Press the SET key to confirm
the desired unit. Next the message[----]will be displayed and the{or }icons
corresponding to the unit will be turned on.
Obs.: While changing the unit, the controller carries the factory values in its parameters,
[,FAC], being necessary to perform their setting.
StandardStandard
Description
- Corrective measures: Contact the technician responsible for
installation.
- Corrective measures: Contact the technician responsible for
installation.

1 2 34 5 678 9 10 11
POWER
SUPPLY
SENSOR T1
METAL TIP
(COLLECTORS)
SENSOR T2
PLASTIC TIP
(POOL)
FILTER
115 Vac
or
230 Vac
0
Power supply
NOTE: check supply as product model
PUMP
FILTERPUMP
Turn off the network
before removing
the protection cover
9. IMPORTANT
According to the chapters of norm IEC 60364:
1: Install protector against overvoltage on the power supply.
2: Sensor cables and signal cables of the computer may be joined, but not in the same
electric conduit through which the electric input and the activation of the loads run.
3: Install transient suppresors (RC filters) parallel to the loads as to increase the product
life of the relays.
Contact suppressor connection diagram
Suppressor
A1
A2
A1 and A2 are the
contactor coils.
Diagram for suppressor installation for direct
drive load inputs
Load
Suppressor
For direct activation the maximum
specified current should be taken
into consideration.
Suppressors on offer from Full Gauge Controls
A qualified technician must perform
the installation of the device.
DO DON’Ts
The controller MUST be installed:
- indoors, in a dry environment;
- away from electromagnetic fields;
- in a ventilated place, free from flammable
liquids and gases;
- protected by a circuit breaker of appropriate
specification for the installed load.
The controller MUST NOT be
installed:
- in wet places;
- exposed to sunlight or rain;
- in saunas, machine rooms or
bathrooms.
s
Failure to not comply the warnings will cause loss of warranty, equipment and / or
physical damage.
8.3 ELECTRICAL CONNECTIONS
8. INSTALLATION
8.1 SUPERIMPOSED INSTALLATION
Push the bottom openings
necessary for the passage of
cables;
Attach the controller to the wall using the
screws and plugs provided;
Make the electrical
connections of the controller;
For a better finish
install X system type
channels to run
cables;
Place the protective cover of
the electrical connections
and secure it with the screw
(included in package).
8.2 INSTALLATION OF 4x2 BOX
The top screw must not be screwed
completely, for engaging the
controller. After fitting the controller
on the top screw, secure it with the
lower screw;
Push the rear openings
necessary for the passage
of cables;
Route the cables through the
openings as controller connections;
Secure the controller in
4x2 box using the
screws provided;
Place the
protective cover
of the electrical
connections and
secure it with the
screw (included
in package).
Make the electrical
connections of the controller;
The top screw must
not be screwed
completely, for
engaging the controller. After
fitting the controller on the top screw,
secure it with the lower screw;
Remove the protective
cover of the
connections at the
bottom of the controller;
Remove the protective
cover of the connections
at the bottom of the
controller;
1
2
3
4
5
6
1
2
3
4
5
6
ENVIRONMENTAL INFORMATION
Packaging:
The materials used in the packaging of Full Gauge products are 100% recyclable. Try to
perform disposal through specialized recyclers.
Product:
The components used in Full Gauge controllers can be recycled and reused if
disassembled by specialized companies.
Disposal:
Do not incinerate or dispose the controllers that have reached the end of their service as
household garbage. Observe the laws in your area regarding disposal of electronic
waste. If in doubt, please contact Full Gauge Controls.
WARRANTY - FULL GAUGE CONTROLS
Products manufactured by Full Gauge Controls, as of May 2005, have a two (02)
yearwarranty, as of the date of the consigned sale, as stated on the invoice. They are
guaranteed against manufacturing defects that make them unsuitable or inadequate for their
intended use.
EXCEPTIONS TO WARRANTY
The Warranty does not cover expenses incurred for freight and/or insurance when sending
products with signs of defect or faulty functioning to an authorized provider of technical
support services. The following events are not covered either: natural wear and tear of parts;
external damage caused by falls or inadequate packaging of products.
LOSS OF WARRANTY
Products will automatically lose its warranty in the following cases:
- The instructions for assembly and use found in the technical description and installation
procedures in Standard IEC60364 are not obeyed;
- The product is submitted to conditions beyond the limits specified in its technical
description;
- The product is violated or repaired by any person not a member of the technical team of
Full Gauge Controls;
- Damage has been caused by a fall, blow and/or impact, infiltration of water, overload
and/or atmospheric discharge.
USE OF WARRANTY
To make use of the warranty, customers must send the properly packaged product to Full
Gauge Controls together with the invoice or receipt for the corresponding purchase. As
much information as possible in relation to the issue detected must be sent to facilitate
analysis, testing and execution of the service.
These procedures and any maintenance of the product may only be provided by Full
Gauge Controls Technical Support services in the company's headquarters at Rua Júlio de
Castilhos, 250 - CEP 92120-030 - Canoas - Rio Grande do Sul – Brasil
Rev. 03
Copyright 2013 All rights reserved.
Note: The length of the sensor cable can be increased by the user up to 200 meters using PP 2 x 24
AWG cable.
The sensor with metal tip must be installed in the solar collector, it supports a temperature of 200 º C.