User Manual

151555 Rev. A 07/12
10
MANUAL DEFROST
Defrosting my also be induced manually by keeping the defrost button for 3 seconds. Once defrost
has started, the defrost will go through a defrost and drip time pull down cycle.
HOW TO CHANGE THE SETPOINT
HOW TO CHANGE A PARAMETER VALUE
NOTE 1: The set value is stored even when the procedure is exited by waiting the time-out to expire.
NOTE 2: The SETPOINT is set at a recommended –20°F at the factory.
NOTE 3: To scroll down the parameters without changing them, press the DOWN button.
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 Factory Setting
SP Tem
p
erature Set Point SPL.SPH -20°F
HYS Tem
p
erature Differential 1 to 255°F 7°F
SPL Minimum Tem
p
erature limit -35.SPH -35°F
SPH Maximum Tem
p
erature limit SPH.120° 15°F
A
H
A
Hi
g
h Tem
p
erature alarm -50.120° 35°F
A
L
A
Low Tem
p
erature Alarm 50.120° -45F
A
TD Tem
p
erature Alarm Dela
y
0.120min 30min
DFR Number of Defrost C
y
cle
p
er 0.24 4/da
y
DLI Defrost Termination -50.120° 55°F
DTO Maximum Defrost Duration 1.120min 30min
ELECTRICAL CONNECTIONS
The controller is provided with screw terminal block to connect cables with a cross section up to 2,5
mm2. Before 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 contractor’s.