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9

MAIN FUNCTIONS
HOW TO SEE THE SETPOINT

1.  Push and immediately release the 

SET 

key: 

the display will show the Set point value.

HOW TO CHANGE THE SETPOINT

1.  Push the 

SET 

key for more than 2 seconds to change the 

Set point value;

2.  The value of the set point will be displayed and the  LED 

starts blinking;

3.  To change the Set value push the 

UP 

or 

DOWN

 arrows 

within 10s.

4.  To memorise the new set point value push the 

SET

 key 

again or wait 10s.

HOW TO START A MANUAL DEFROST

Push the 

DEF 

key for more than 2 seconds 

and a manual defrost will start.

HOW TO CHANGE A PARAMETER VALUE

To change the parameter’s value operate as follows:

1. Use “

UP

” or “

DOWN

” to change its value.

2. Press “

SET

” to store the new value and move to the 

following parameter.

To exit

: Press 

SET + UP 

or wait 15s without pressing a key. 

NOTE

: the set value is stored even when the procedure is 

exited by waiting the time-out to expire.

THE HIDDEN MENU

The hidden menu Includes all the parameters of the instrument. 

HOW TO ENTER THE HIDDEN MENU

 

 

1. Enter the Programming mode by  

 

 

 

pressing the Set + 

DOWN

 key for 3s  

 

 

 

(LED 1 and start blinking). 

 

 

2. When a parameter is displayed keep 

 

 

pressed the Set +

 DOWN

 for more than 7s.   

 

 

The Pr2 label will be displayed immediately  

 

 

followed from the HY parameter. 

Label Characteristic

Description

Menu/User 

Level

Possible 

Settings

DEFAULT SETTINGS

Low 

Temp.

Medium 

Temp.

High 

Temp.

REGULATION

SEt

Set Point

LS ~ US

-10

34

38

Hy

  Differential

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

differential for set point. Compressor 

Cut IN is Set Point + differential (Hy). 

Compressor Cut OUT is when the 

temperature reaches the set point

Pr1

1~ 45

3

3

3

LS

Minimum set point (- 50°C÷SET/-58°F÷SET): Sets the minimum 

value for the set point..

Pr2

-67 ~ SET

-23

25

33

US

Maximum set point (SET÷110°C/ SET÷230°F). Set the maximum 

value for set point.

Pr2

SET ~ 302F

37

40

45

Ot

Thermostat probe 

calibration

(-12.0÷12.0°C; -120÷120°F) allows to adjust 

possible offset of the thermostat probe

Pr2

-21~21

0

0

0

OdS Outputs activation 

delay at start up

(0÷255min) This function is enabled at 

the initial start up of the instrument and 

inhibits any output activation for the period 

of time set in the parameter

Pr2

 0 ~ 255 

minutes

0

0

0

AC

Anti-short cycle 

delay

(0÷50 min) minimum interval between the 

compressor stop and the following restart

Pr2

0 ~ 50 

minutes

4

4

4

COF

Compressor OFF 

time with faulty 

probe

(0÷255 min) time during which the 

compressor is OFF in case of faulty 

thermostat probe.  With COF=0 

compressor is always active

Pr2

0 ~ 255 

minutes

6

6

6

NOW YOU ARE IN THE HIDDEN MENU.

3. Select the required parameter.

4. Press the “

SET

” key to display its value (Now only the  LED 

is blinking).

5. Use 

UP 

or 

DOWN

 to change its value.

6. Press “

SET

” to store the new value and move to the 

following parameter.

To exit

: Press 

SET + UP 

or wait 15s without pressing a key. 

NOTE

: the set value is stored even when the procedure is 

exited by waiting the time-out to expire.

HOW TO SEE THE ALARM DURATION AND MAX (MIN) 

TEMPERATURE 

If the alarm LED is on, an alarm has taken place. 

To see the kind of alarm, the max (min) reached temperature 

and alarm duration do as follows:v

1.  Push the Up or Down key.

2.  On the display the following message is shown::

HAL

” for high temperature alarm (“

LAL

” for the 

minimum allarm), followed by the 

Maximum 

(minimum) temperature.

Then the “

tiM

” (

tiM

e) message is displayed, followed by 

the 

“Duration” 

in h.mm.

3.  Then the instrument displays the temperature once 

again.

NOTE1: 

if an alarm is still occurring the “

tim

” shows the 

partial duration.

NOTE2:

 the alarm is recorded when the temperature come 

back to normal values

HOW TO RESET A RECORDED ALARM OR ONE THAT IS 

STILL OCCURRING

1.  Hold the SET key pressed for more than 3s, while the 

recorded alarm is displayed. (the rSt message will be 

displayed)

2.  To confirm the operation, the “rSt” message starts 

blinking and the normal temperature will be displayed

DEFAULT PARAMETER SETTINGS

2.

 F

reez

ers

Содержание PRO3 Top Mount PTT021L6B

Страница 1: ...ments Recommended Unit Placement 4 Rigging Mounting Inspection General Safety Information 5 Standard Installation Procedure 6 Outdoor Unit Installation Instructions 7 2 Freezers Service Information Ma...

Страница 2: ...980 5 300 208 230 1 60 8 6 15 7 3 350 No B PTT063H2B 6 680 7 100 208 230 1 60 9 8 15 9 9 550 No B PTT072H2B 7 630 8 060 208 230 1 60 10 9 15 9 3 500 No B PTT099H2B 10 490 11 340 208 230 1 60 17 1 20...

Страница 3: ...3 072 Dimensional Diagrams Figure B Large Cabinet without weather hood Models PTT 052 069 099 128 25 x 381 2 panel opening required for evaporator section of large cabinet sizes 23 5 with weather hood...

Страница 4: ...ocks to install top mounted equipment The size and shape of the storage will generally determine the type and number of units to be used and their location Top View One System Evaporator Section Compr...

Страница 5: ...the box roof The trim ring shipped loose when provided should be installed around the air diffuser when secured with the hardware provided Be sure to adhere to your local standard construction codes...

Страница 6: ...vent bunching or folding which could affect the gasket to curb sealing or trap rainwater adjacent to the curb 4 Remove the weather hood from the system The compressor compartment cover s should be lef...

Страница 7: ...ver curb Figure 3 PTT unit placed on roof of walk in color see rigging instructions Figure 4 Weather hood installed after electrical service connection PTT Models Example Outdoor Curb Installation Cur...

Страница 8: ...uring normal operation at the preset time intervals the temperature defrost control will de energize the compressor contactor and evaporator fans and energize the defrost heaters These functions are c...

Страница 9: ...calibration 12 0 12 0 C 120 120 F allows to adjust possible offset of the thermostat probe Pr2 21 21 0 0 0 OdS Outputs activation delay at start up 0 255min This function is enabled at the initial sta...

Страница 10: ...tween end of defrost and evaporator fans start Pr1 0 255 minutes 2 2 Not Applicable Fct Temperature differential avoiding short cycles of fans 0 59 C Fct 0 function disabled If the difference of tempe...

Страница 11: ...ause the amount and pattern of frosting can vary greatly The frost build up is dependent on the temperature of the room the type of product being stored how often new product is brought into the room...

Страница 12: ...Check ambient temp 50 F to 100 F Compressor 1 Operating beyond design conditions 1 Add equipment so that conditions are within allowable limits thermal protector 2 Dirty condenser coil 2 Clean coil s...

Страница 13: ...ne Heater T stat 28917401 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Weather Hood Medium 50047901 1 1 1 1 1 1 Weather Hood Large 50047801 1 1 1 1 1 1 1 1 Right source Right parts Right now InterLink is your link to...

Страница 14: ...C 3 45 F 7 C 1 52 F 11 C Room Thermostat Notes CC RT ROOM THERMOSTAT CFM CONDENSER FAN MOTOR CC COMPRESSOR CONTACTOR EFM EVAPORATOR FAN MOTOR LEGEND HL HEATER LIMIT THERMOSTAT DH DEFROST HEATER GND G...

Страница 15: ...EFM EVAPORATOR FAN MOTOR LEGEND HL HEATER LIMIT THERMOSTAT DH DEFROST HEATER GND GROUND RC RUN CAPACITOR SR START RELAY USE COPPER CONDUCTORS ONLY NOT FACTORY WIRING FIELD WIRING WHEN PLUG PROVIDED SC...

Страница 16: ...3 Wiring Diagram for System Electric Defrost 208 230 1 60 B Models PTT021L6B PTT031L6B PTT044L6B PTT052L6B and PTT069L6B Medium and Large Cabinet Models Wiring 208 230 1 60 voltages Indoor and Outdoor...

Страница 17: ...34 F 1 C CC RT ROOM THERMOSTAT CFM CONDENSER FAN MOTOR CC COMPRESSOR CONTACTOR EFM EVAPORATOR FAN MOTOR LEGEND HL HEATER LIMIT THERMOSTAT DH DEFROST HEATER GND GROUND RC RUN CAPACITOR SR START RELAY U...

Страница 18: ...R FAN MOTOR LEGEND HL HEATER LIMIT THERMOSTAT DH DEFROST HEATER GND GROUND RC RUN CAPACITOR SR START RELAY USE COPPER CONDUCTORS ONLY NOT FACTORY WIRING FIELD WIRING WHEN PLUG PROVIDED SC START CAPACI...

Страница 19: ...FC TEMPERATURE FAN CYCLE SWITCH WN WIRE NUT SW SWITCH COMPRESSOR L1 L3 L2 1 2 3 208 230V 3PH 60HZ L1 T1 CC L2 T2 L3 T3 GND FAN COMP BLUE BLACK BLUE ALARM H4 H2 BLUE DEFROST COM DEFROST REFRIGERATION E...

Страница 20: ...ion Products LLC makes no warranty expressed or implied of fitness for any particular purpose or of any other nature whatsoever with respect to products manufactured or sold by Heatcraft Refrigeration...

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