Installation and Operations Manual

Parameters

 

 

 

Menu/User

Possible

Default Settings

Label

Characteristic

Description

 

 

 

Low

 

High

Level

Settings

Medium

 

 

 

 

 

 

 

 

Temp.

Temp.

Temp.

 

 

 

 

 

 

 

 

Regulation

 

 

 

 

 

 

SEt

Set Point

 

 

LS ~ US

-10

34

38

 

 

(0,1 ÷ 25,5°C / 1÷255 °F) Intervention

 

 

 

 

 

 

 

differential for set point. Compressor

 

 

 

 

 

Hy

Differential

Cut IN is Set Point + differential (Hy).

Pr1

1~ 45

3

3

3

 

 

Compressor Cut OUT is when the

 

 

 

 

 

 

 

temperature reaches the set point

 

 

 

 

 

LS

Minimum set point

(- 50°C÷SET/-58°F÷SET): Sets the

Pr2

-67 ~ SET

-23

25

33

 

 

minimum value for the set point..

 

 

 

 

 

US

Maximum set point

(SET÷110°C/ SET÷230°F). Set the

Pr2

SET ~ 302F

37

40

45

maximum value for set point.

 

Thermostat probe

(-12.0÷12.0°C; -120÷120°F) allows

 

 

 

 

 

Ot

to adjust possible offset of the

Pr2

-21~21

0

0

0

calibration

 

thermostat probe

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(0÷255min) This function is

 

 

 

 

 

 

Outputs activation

enabled at the initial start up of the

 

0 ~ 255

 

 

 

OdS

instrument and inhibits any output

Pr2

0

0

0

delay at start up

minutes

 

activation for the period of time set in

 

 

 

 

 

 

 

 

 

 

 

 

 

the parameter

 

 

 

 

 

 

Anti-short cycle

(0÷50 min) minimum interval

 

 

 

 

 

AC

between the compressor stop and

Pr2

0 ~ 50 minutes

4

4

4

delay

 

the following restart

 

 

 

 

 

 

 

 

 

 

 

 

 

Compressor OFF

(0÷255 min) time during which the

 

0 ~ 255

 

 

 

 

compressor is OFF in case of faulty

Pr2

 

 

 

COF

time with faulty

6

6

6

thermostat probe. With COF=0

minutes

 

probe

 

 

 

 

 

compressor is always active

 

 

 

 

 

 

 

 

 

 

 

 

Display

 

 

 

 

 

 

 

 

 

°C=Celsius; °F=Fahrenheit. WARNING:

 

 

 

 

 

 

 

When the measurement unit is

 

°C = Celsius

 

 

 

CF

Temperature

changed the SET point and the values

Pr2

°F

°F

°F

measurement unit

of the parameters Hy, LS, US, Ot, ALU

°F =Fahrenheit

 

 

 

 

 

 

 

and ALL have to be checked and

 

 

 

 

 

 

 

modified if necessary

 

 

 

 

 

Defrost

 

 

 

 

 

 

 

 

 

 

 

EL = electric

 

 

 

tdF

Defrost type

EL = electrical heater; in = hot gas

Pr2

defrost / in =

EL

EL

EL

 

 

 

 

hot gas defrost

 

 

 

 

 

(-50÷50 °C/ -58÷122°F) (Enabled only

 

 

 

 

 

dtE

Defrost termination

when EdF=Pb) sets the temperature

Pr1

-58~122

65

65

38

temperature

measured by the evaporator probe,

 

 

 

 

 

 

 

 

which causes the end of defrost

 

 

 

 

 

 

Interval between

(0÷120h) Determines the time

 

 

 

 

 

IdF

interval between the beginning of

Pr1

0 ~ 120 hours

6

6

6

defrost cycles

 

two defrost cycles

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(0÷255min) When P2P = n, (not

 

 

 

 

 

 

(Maximum) length

evaporator probe: timed defrost) it

 

0 ~ 255

 

 

 

MdF

sets the defrost duration, when P2P =

Pr2

40

40

60

for defrost

minutes

 

y (defrost end based on temperature)

 

 

 

 

 

 

 

 

 

 

 

 

 

it sets the maximum length for defrost

 

 

 

 

 

 

 

(0÷120 min) time interval between

 

 

 

 

 

 

 

reaching defrost termination

 

 

 

 

 

 

 

temperature and the restoring of the

 

0 ~ 255

 

 

 

Fdt

Drip time

control’s normal operation. This time

Pr1

2

2

0

minutes

 

 

allows the evaporator to eliminate

 

 

 

 

 

 

 

 

 

 

 

 

 

water drops that might have formed

 

 

 

 

 

 

 

due to defrost

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

Page 10
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Heatcraft Refrigeration Products PRO3 manual Parameters, Regulation, Display, Defrost

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