Master Bilt LAE Controller 80 - Manual (Page 10)

10
HOW TO CHANGE THE SETPOINT
HOW TO CHANGE a parameter value
LIST OF PARAMETERS
Here is a list of the parameters the value of which can be changed in the programming mode, as well as their ranges.
Display
Symbol
Parameter
Range
Master-Bilt’s
BMG/TMG Setting
SP Temperature Set Point SPL…SPH 35°F
HYS Temperature Differential 1 to 255°F 5°
SPL Minimum Temperature limit setpoint -50…SPH 27°F
SPH Maximum Temperature limit setpoint SPH…120° 50°F
AHA High Temperature Alarm -50…120° 65°F
ALA Low Temperature Alarm 50…120° 0°F
ATD Temperature Alarm Delay 0…120min 30min
DFR Number of Defrost Cycle per 24hr 0…24 Off Cycle
DLI Defrost Termination Temperature -50…120° -
DTO Maximum Defrost Duration 1…120min 30min
ELECTRICAL CONNECTIONS
The controller is provided with a screw terminal block to connect cables with a cross section up to 2,5 mm
2
. Before
connecting cables make sure the power supply complies with the control’s requirements. Separate the probe cables
from the power supply cables, the outputs and the power connections. Do not exceed the maximum current allowed on
each relay, in case of heavier loads use a suitable external relay or contactor’s.
PROBE CONNECTIONS
The probes shall be mounted with the bulb upwards to prevent damage due to casual liquid infiltration. It is
recommended to place the thermostat probe at the warmest loacation of return air streams to correctly measure the
average room temperature. Place the defrost termination probe among the evaporator fins in the coldest place, where
most ice is formed, far from heaters or from the warmest place during defrost, to prevent premature defrost termination.