Electrical Connections; Probe Connections; List Of Parameters; How To Change Parameters - Master Bilt QMVM-L SERIES Installation & Operation Manual

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
Parameter
Symbol
SP Temperature Set Point
HYS Temperature Differential
SPL Minimum Temperature limit setpoint
SPH Maximum Temperature limit setpoint
AHA High Temperature alarm
ALA Low Temperature Alarm
Temperature Alarm Delay
ATD
DFR Number of Defrost Cycle per 24hr
DLI Defrost Termination Temperature
DTO Maximum Defrost Duration

ELECTRICAL CONNECTIONS

The controller is provided with screw/push terminal block to connect cables with a cross section up to 2,5 mm
connecting cables make sure the power supply complies with the control's requirements. Separate the probe cables
from the power supply cables, from 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 damages due to casual liquid infiltration. It is
recommended to place the thermostat probe away from 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.
Range
SPL...SPH
1 to 255°F
-50...SPH
SPH...120°
-50...120°
50...120°
0...120min
0...24
-50...120°
1...120min
9
Master-Bilt's
Setting
30°F
5°
27°F
55°F
60°F
0F
30min
6/day
55°F
30min
2
. Before