Full Gauge Controls MT-526 plus Quick Start Manual

Have this manual in the palm of
yout hand through the FG Finder
app.
BEFORE INSTALLING THE CONTROLLER, WE RECOMMEND THAT YOU READ THE ENTIRE
INSTRUCTION MANUAL, IN ORDER TO AVOID DAMAGING THE PRODUCT.
IN ORDER TO BE ABLE TO PROVIDE CONTINUOUS DEVELOPMENT, FULL GAUGE CONTROLS
RESERVES THE RIGHT TO AMEND THE INFORMATION IN THIS MANUAL AT ANY TIME, WITHOUT
NOTICE.
1. DESCRIPTION
The MT-526 plus is a controller for automating heat pumps and home heating. It controls the heating of
thermal reservoirs (bath mode) and swimming pools (scan mode) automatically through a series of
configurable conditional events. There are a total of 16 events that can be set, including heating, heating in
ECO mode and pool filtering. There is quick access to the heating and filter operating modes, allowing you
to choose between automatic, manual and off modes, as well as the weekend heating mode. It has 3 digital
inputs that allow you to monitor the flow switch, the compressor's high and low pressure and the option of
an auxiliary input for an external alarm when sensor 3 is not used, as well as a *True RMS voltage monitor
that prevents the system from operating outside the configured voltage range. The controller
communicates with the SITRAD software for remote monitoring and control of the system.
2. APPLICATION
- Heat pumps
3. TECHNICAL SPECIFICATIONS
Power Source
Average consumption
Working temperature
Control temperature**
Temperature sensors
Resolution
Digital inputs
Relay outputs
COMP / PUMP / FAN / DEFROST / AUX
Degree of protection
Maximum dimensions
Bay size
Working Humidity
* Can be configured as a digital input when not using the temperature sensor 3.
**For temperature readings above 105°C it is necessary to use a silicone SB59 sensor (sold separately).
4. I NTRODUCTION
Lower display : indicates time,
LED on: COMP (compressor)
day of the week, alarms or
output activated;
parameter configuration
LED on: PUMP output
activated;
MT-526
LED flashing: PUMP output
activated in mode
"FILTERING";
LED on: FAN output
SET
activated;
LED on: DEFROST
output activated;
Brief touch: Quick Access to
Setpoint adjustment / SP ECO
SET
Long touch (4sec): Access to
advanced settings;
Brief touch: View the status of the
control and operating mode
Medium touch (2sec.): Access to menu
of the event schedule;
Long touch (4sec.): Set clock
Brief touch: Toggles between modes
(OFF→ AUT→ MAN)
Long touch(4sec.): Enable the
WEEKEND mode
MT-526 plus
CONTROLLER FOR HEAT PUMPS AND
RESIDENTIAL HEATING SYSTEMS
Heating Filtering Auxiliary Ventilation
Output
85~240Vca (50-60Hz)
0 to 55°C (0 to 131°F)
-20 to 200°C (-4 to 392°F)
S1: Water sensor
S2: Defrost sensor
S3: Reservoir sensor (Optional)*
E1: Low pressure alarm
E2: High pressure alarm
E3: Flow Switch
E4: External alarm auxiliary input*
240Vac 1/8HP (Indutive)
120Vac 1/10HP (indutive)
120-240Vac 5A (Resistive)
120-240Vac 5W (E-ballast)
75mm x 75mm x 100mm / 2,95" x 2,95" x 3,93" (WxHxD)
67,2mm x 67,2mm / 2,64" x 2,64" (WxH)
10 to 90% UR (without condensation)
Upper display: indicates
the temperature measured
by the sensor or
parameter configuration;
LED indicaton for the
temperature unit;
LED indication for
the function lock;
LED indication for
the AUX output
(auxiliary) activated;
Brief Touch: View the current set
temperature on all sensors
Medium touch (2sec.): View the
max and min values on the sensors.
Long touch (4sec.): Resets the max
and min values on the sensors.
Brief touch: View the current RMS voltage
Medium touch (2sec.): View the max and min
values of the voltage monitor;
Long touch (4sec.): Resets max and min voltage
values.
Brief touch: Toggles between modes
(OFF→ AUT→ MAN)
KEY FUNCTIONALITY
Each key has an LED that indicates
SET
its functionality. When on indicates
LED
that the key is active and can be
KEY
pressed.
Buzzer Defrost Programming
Events Function
Schedule Lock in Series
5. BASIC OPERATION
5.1 Setpoint adjustment (SET key)
To set the temperature (Setpoint), press the SET key briefly. Use the
set the parameter value. To move forward, press the SET key again briefly.
ECO will then be displayed. Use the
parameter value.
5.2 Heat mode
By pressing the HEAT MODE key , the user can switch between the following control operating modes: OFF,
AUTOMATIC or MANUAL. In addition to these 3 modes, there is also a weekend mode which is activated
by holding down the HEAT MODE key for 4 seconds until the message[Mod][UEEH] appears on display.
The operation of each of these modes is described below:
OFF - Turned Off
In this mode, temperature control and monitoring is turned off, while waiting for the user
to activate a new mode.
10VA
AUT - Automatic
In this mode, temperature control is linked to the event schedule. Thus, the controller will
only monitor heating processes within the range configured for each event, and will keep
the control off when it is outside the range of the configured events. The schedule allows
a total of 16 different events to be configured. For more details see item 8 Event
0.1°C / 1°F
schedule.
MAN - Manual
In manual heating mode, the temperature monitoring and control process will be carried
out in accordance with the time interval set in function [F06] Manual Temperature
Control Activation Time. When the user activates manual mode using the HEAT MODE
key, the monitoring and heating process starts until the time set in the function has
elapsed [F06].
IP 65 (front)
Note: Once finished, the operating mode will return to AUTO mode and remain there until the user
interacts again.
WEEKEND
This mode is similar to manual heating, but allows you to select an interval in days (from
1 to 7), allowing the user to set a longer period for the temperature control process. This
interval is configured in function [F07] Weekend Activation Interval, and is activated by
holding down the HEAT MODE key for 4 seconds until [Mod][UEEH] appears on the
display.
After the interval of days set in function [F07] has elapsed, the operating mode will return
Note:
to AUTO mode and remain there until the user interacts again.
5.3 Filter mode
When the controller is set to pool mode [i01]=[PooL] the
user to activate or deactivate the controller's filtering functions. The
operating mode of the pump/filter control with each press, taking on the following options: OFF, AUTO and
MANUAL, where:
In this mode, filtering will not be carried out directly, only indirectly when the temperature
control triggers the pump to circulate the water for heat exchange;
When set to automatic, filtering will be controlled according to the events programmed in
the schedule, i.e. it will filter indirectly when the temperature control activates the pump
or if specific filtering events are programmed;
In this mode, the controller performs manual filtering according to the value set in
function [F26] Filtering time (manual). In this way, manual filtering can be carried out
when there is no event on the schedule or at intervals when the heating is stopped
because it has reached the Setpoint.
If the bath mode [i01]=[HoME] is set, the operation of the pump output is controlled
Note:
directly by the temperature control, and no manual activation of the pump output or user
interaction with the FILTER MODE key is possible.
IP 65
FRONT
Degree Monitoring
of Protection System
< >
or
FILTER MODE
< >
or keys to
keys to adjust and/or stop adjusting the
key will be available for the
FILTER MODE key toggles the