Full Gauge Faston MT-444e Instructions Manual

1. DESCRIPTION
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The MT-444 Faston has 3 recipe options, each with its control temperature and their
differentials (hysteresis), as well as specific keys for triggering / disabling and turn the lamp on / off. It
also has a digital filter, which has the purpose of simulating an increase in mass in the ambient sensor
(S1), delaying its response time (thermal inertia) and avoiding unnecessary compressor trips. It also
includes an intelligent blocking of functions and a shutdown mode of the control functions.
Product conforming to UL Inc. (United States and Canada).
2. SAFETY RECOMMENDATIONS
- Check the controller for correct fastening;
- Make sure that the power supply is off and that it is not turned on during the controller installation;
- Read the present manual before installing and using the controller;
- Use adequate Personal Protective Equipamenet (PPE);
- For application at sites subject to water spills, such as refrigerated counters, install the protecting vinyl
supplied with the controller;
- For protection under more critical conditions, we recommend the Ecase cover, which we make
available as an optional item (sold separately);
- The installation procedures should be performed by a qualified technician.
3. APPLICATIONS
• Beverage displays; • Reach-in coolers;
• Refrigeration counters;
• Up right freezers.
4.TECHNICAL SPECIFICATIONS
Power supply
Approximate consumption
Setpoint Temperature
Operating Temperature
Operating humidity
Maximum current per output
Digital input
Maximum dimensions (**) (mm)
Cutouts dimensions (mm)
(*) Admissible variation in relation to the voltage rating.
(**) Maximum dimensions without connectors.
5. INDICATORS AND KEYS
Refrigeration indicator LED
Light indicator LED
Power-saving mode indicator LED
Quick Access
Menu Key (Flatec)
Set Key
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MT-444
6. WIRING DIAGRAM
Image I - Connection 115 Vac
7 8 9 10 11 12 13 14
1 2 3 4 5 6
DIG LIGHT FAN
Image III - Connection 12 Vac/dc
7 8 9 10 11 12 13 14
1 2 3 4 5 6
DIG LIGHT
12 Vac/dc
MT-444
DIGITAL REFRIGERATION
CONTROLLER
Buzzer
Connector Power-saving On/off
for quick mode light
coupling
MT-444E Faston: 115 or 230Vac ±10%(*) (50/60 Hz)
MT-444EL Faston: 12 or 24Vac/dc +10%(*)
3.4 VA
- 50 to 75°C (-58 to 167°F)
-10 to 50°C / 14 to 122°F
10 to 90% RH (without condensation)
COMP: 12(8)A / 240Vac 1HP
DEFR: 3A / 240Vac 720W
FAN: 5(3)A / 240Vac
LIGHT: 5(3)A / 240Vac
input for open-door detection (dry contact type)
76 x 34 x 84 (WxHxD)
X = 71±0,5 Y = 29±0,5 (see Image V)
Fan indicator LED
Defrost indicator LED
Temperature unit indicator LED
Image II - Connection 230 Vac
1 2 3 4 5 6
DEFR COMP
115 Vac
Image IV - Connection 24 Vac/dc
1 2 3 4 5 6
FAN DEFR COMP
Power
supply
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Faston
IP 65
FRONT
Functions Control Serial Protection
lock functions Programming
shutdown
NEW CONNECTION SYSTEM (QUICK COUPLING):
CONNECTION:
- Hold the wire near its end and insert it into the
desired slot.
- If necessary, press the bottom to assist the
connection.
NOTE:
- In the connectors 1 to 6 the maximum wire
diameter that can be used is 1,5mm².
- The wires must be tinned or use Rocket Pin
terminals with a maximum diameter of 0,75mm².
6.1. Temperature sensor connection
- Connect the sensor S1 wires to terminals "1 and 2" and wires sensor S2 to terminals "3 and 4": the
polarity is not relevant.
- Length of the sensor cables can be increased by user himself to up to 200 meters, using a PP 2x24
AWG cable.
6.2. Recommendations of IEC60364 standard
a) Install overload protectors in the controller supply.
b) Install transient suppressors – suppressor filter RC – in the circuit to increase the service life of the
controller relay. See connection instructions of the filter on the previous page.
c) The sensor cables may be together, but not in the same conduit where the power supply of the
controller and/or of the loads passes through.
7. FIXING PROCEDURE
a) Cutout the panel plate (Image V - item 13) where the controller will be fixed, with dimensions
X = 71±0,5 mm and Y = 29±0,5 mm;
b) Remove the side locks (Image VI - item 13): To do this, squeeze the elliptical central part (with the
Logo Full Gauge Controls) and move the latches back;
c) Pass the wires through the cutout of the plate (image VII - Item 13) and make the electrical installation
as described in item 6;
d) Insert the controller into the panel cutout, from the outside in;
e) Replace the latches and push then until they are pressed against the panel, securing the controller to
the housing (see arrow in Figure VI - item 13);
f) Adjust the parameters as described in item 9.
WARNING: for installations requiring liquid-tight sealing, the cut-off for the installation of the
controller should be at must 70.5x29mm. The side latches must be secured so that they press
the rubber sealing to prevent infiltration between the cutout and the controller.
Vinyl protector - Image IX (item 13)
Upper key
Protects the controller should when installed in a place with splashing water, such as in refrigerated
counters. This adhesive vinyl accompanies the instrument, on the packaging.
IMPORTANT: Apply only after completing electrical connections.
a) Retract the lateral locks (Image VI - item 13);
Lower key
b) Remove the protective film from the adhesive side of the vinyl;
c) Apply the vinyl over the whole top, folding the flaps, as indicated by the arrows - Image IX (item 13);
d) Reinstall the latches.
NOTE: The vinyl is transparent, allowing to visualize the electric scheme of the instrument.
7 8 9 10 11 12 13 14
DIG LIGHT FAN DEFR COMP
230 Vac
7 8 9 10 11 12 13 14
DIG LIGHT FAN DEFR COMP
24 Vac/dc
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MT -4 44 MT -4 44
level
FASTON and PUSH-IN FAST
BOTTOM
DISCONNECT:
- To disconnect the cord, press the bottom and
remove it.
Controller power supply
Use the pins according to table below, considering the set version:
Pins MT-444E Faston
9 and 10
9 and 11
The sensor S1 (black) must be in the ambient.
The sensor S2 (gray) must be placed in the evaporator
Power
supply through metallic cramp.
evolution
E251415
WIRE INPUT
The wire should be picked
in 5 mm and tinned.
Terminal Rocket Pin.
MT-444EL Faston
115 Vac 12 Vac/dc
230 Vac 24 Vac/dc