Hill Phoenix P074749F Users Manual Owza_v1

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P074749F

Rev. 2 07/09

OWZA

Installation & Operation Handbook

FROZEN FOOD CASE

Table of Contents

Energy Data & Dimensions ...........................2-3

General Information ......................................... 4

Installation ......................................................5-6

Refrigeration Piping ......................................... 7

Plumbing ........................................................... 8

Electrical Connections ..................................... 9

Air Flow, Defrost & Temp Control .................. 10

Use & Maintenance ........................................ 11

Parts Ordering ................................................ 12

Appendix A: Domestic Wiring Diagrams

Appendix B: Export Wiring Diagrams

Appendix C: Controller Information

Appendix D: User Set Points

ii

Important

At Hill PHOENIX®, the safety of our customers and employees, as well as the ongoing performance of our products, are top

priorities. To that end, we include important warning messages in all Hill PHOENIX installation and operation handbooks, ac-

companied by an alert symbol paired with the word "DANGER", "WARNING", or "CAUTION".

All warning messages will inform you of what the potential hazard is; how to reduce the risk of death, injury, or damage; and

what may happen if the instructions are not properly followed.

DANGER

▲



"DANGER" indicates an immediate threat of death or

serious injury if all instructions are not followed care-

fully.

WARNING

▲



"WARNING" indicates a possible threat of death or seri-

ous injury if all instructions are not followed carefully.

CAUTION

▲



"CAUTION" indicates that failure to properly follow

instructions may result in case damage.

iii

COMPONENT

All measurements are taken per ARI 1200 - 2002 specifications.

ENERGY DATA

OWZA

Defrost Controls

Model

Defrosts

Per Day

Electric Defrost6Timed Off Defrost7Hot Gas Defrost Reverse Air Defrost

Fail-Safe

(min)

Termination

Temp (°F)

Fail-Safe

(min)

Termination

Temp (°F)

Fail-Safe

(min)

Termination

Temp (°F)

Fail-Safe

(min)

Termination

Temp (°F)

OWZA - 8' 2 50 46 50 46 - - -8- - - - - - - - -

6 Low temperature defrost

7 Medium temperature defrost

8 "- - -" not an option on this case model.

Guidelines & Control Settings

Model

24hr Energy

Usage

(kWh)

Suction Pressure

@ Case Outlet

(psig)

Superheat Set

Point @ bulb

(F)

Discharge

Air

(F)

Return

Air

(F)

Discharge

Air Velocity5

(FPM)

OWZA - 8’ (med temp) 9.3 60.8 6 - 8 25.7 33.3 200

OWZA - 8’ (low temp) 13.5 16.3 6 - 8 -17 3 200

5 Average discharge air velocity at peak of defrost.

System Requirements

Model Volts Phase Hz

Plug

Style

Cord

Length

OWZA - 8' 230 1 60 L14-30P 10'

1 For export cases, a NEMA L6-30 electrical plug is used.

Condensing Unit Data (2 units/case)

Model Volts Phase

Frequency

(Hz) HP

RLA2

(amps)

LRA3

(amps) Refrig.

Condenser

Fans

Lbs. of

Refrig.

Amps4Watts

OWZA - 8’ (med temp) 208-230 1 60 3/4 7.7 37.0 R404A 1.4 70 5

OWZA - 8’ (low temp) 208-230 1 60 1-1/2 15.4 74.0 R404A 2.8 140 10

2 RLA = Running Load Amps

3 LRA = Locked Rotor Amps

4 Amps shown are included in RLA rating.

2

CASE DIMENSIONS

MODEL

OWZA

CONDENSING UNIT CONDENSING UNIT

DRAIN

PAN

JUNCTION

BOX

53-1/4 in

[135.3 cm]

96 in [243.8 cm] {8’ CASE}

1-1/2 in

[3.8 cm]

42-5/8 in

[108.2 cm]

C

L

43 in

[109.2 cm]

13-1/8 in

[33.3 cm] 8-7/8 in

[22.6 cm]

33-11/16 in

[85.6 cm]

7-7/8 in

[20.0 cm]

29-5/8 in

[75.3 cm]

43-1/4 in

[109.9 cm]

42-9/16 in

[108.1 cm]

51-5/16 in

[130.3 cm]

38-1/2 in

[97.8 cm]

12-7/8 in

[32.7 cm]

COIL PLENUM

6" THERMOPANE

GLASS FRONT

3

CASE DESCRIPTION

This manual specifically covers the OWZA frozen food mer-

chandiser.

STORE CONDITIONS

Hill PHOENIX cases are designed to operate in an air-condi-

tioned store that maintains a 75°F (24°C) store temperature and

55% (max) relative humidity (CRMA conditions). Case opera-

tion will be adversely affected by exposure to excessively high

ambient temperatures and/or humidity.

RECEIVING CASES

Examine fixtures carefully for shipping damage and shortages.

For information on shortages, contact the Service Parts

Department at the toll-free number listed below.

CASE DAMAGE

Claims for obvious damage must be 1) noted on either the

freight bill or the express receipt and 2) signed by the carrier's

agent; otherwise, the carrier may refuse the claim. If damage

becomes apparent after the equipment is unpacked, retain all

packing materials and submit a written request to the carrier for

inspection within 14 days of receipt of the equipment.

Thank you for choosing Hill PHOENIX for your food merchandising needs. This handbook contains important technical infor-

mation and will assist you with the installation and operation of your new Hill PHOENIX display cases. By closely following

the instructions, you can expect peak performance; attractive fits and finish; and long case life.

We are always interested in your suggestions for improvements (e.g. case design, technical documents, etc.). Please feel free to

contact our Marketing Services group at the toll-free number listed below. Thank you for choosing Hill PHOENIX, and we wish

you the very best in outstanding food merchandising.

HILL PHOENIX

1925 Ruffin Mill Rd.

Colonial Heights, VA 23834

Tel: 1-800-283-1109 / Fax: 804-526-7450

Web site: www.hillphoenix.com

LOST/MISSING ITEMS

Equipment has been carefully inspected to insure the highest

level of quality. Any claim for lost/missing items must be

made to Hill PHOENIX within 48 hours of receipt of the

equipment.

TECHNICAL SUPPORT

For technical questions regarding display cases, please contact

our Case Division Customer Service Department at the toll-

free number listed below. For questions regarding our refrig-

eration systems or electrical distribution centers, please contact

our Systems Division Customer Service Department at 1-770-

388-0706.

CONTACTING THE FACTORY

If you need to contact Hill PHOENIX regarding a specific fix-

ture, be certain that you have both the case model number and

serial number – this information is on the serial plate located

on the lower rear baffle of the case. When you have this infor-

mation, call the toll-free number below and ask for a Service

Parts Representative.

GENERAL INFORMATION

* * *

4

INSTALLATION

MOVING CASES

Hill PHOENIX display cases are generally shipped to stores

with casters installed on the base frame. The casters make the

job of moving cases easier for everyone involved in the ship-

ping and installation process, as well as reducing the chance of

damage from raising and lowering cases with ”J” bars to place

them on dollies, skates or rollers. In most situations, one or two

persons can easily move the case into position.

When the cases arrive at the store, simply roll them on to the

store fl oor to the proper staging area. Occasionally, cases are

shipped with skid boards attached to help with stabilization. In

these instances, the casters should be attached after the case is

removed from the truck.

Removing the casters is an easy process. Simply fl atten and

remove the cotter pins that are holding the casters in place (see

Fig. 1). Then lift the case with a “J” bar and slide the caster

assemblies out. The dismantled casters can now be discarded.

WARNING

▲



Be certain that your hands and feet are out of the way

before lowering the case after the removal of the cast-

ers. Failure to do so may result in serious injury.

FLOOR PREP

1. Ask the general contractor if there have been changes in

the building dimensions since the print you are using was

issued. Also, ask for the points of reference from which

you should take dimensions to locate the cases.

2. Using chalk lines or a laser transit, mark the fl oor where

the cases are to be located for the entire lineup. The lines

should coincide with the outside edges of the base frame.

3. Leveling is necessary to ensure proper case alignment and

to avoid potential damage. Locate the highest point on the

positioning line as a reference for determining the proper

height of the shim-pack levelers. A laser transit is recom-

mended for precision and requires just one person.

4. Locate the position of the base frame and spot properly lev-

eled shim packs at the appropriate locations.

LINE-UP & INSTALLATION

1. Remove anything from the cases that may interfere with

case joining (eg. shipping braces).

2. Roll the fi rst case into position. Using a “J” bar , raise the

end of the case (under cross support), remove the casters,

and place the base frame on the shim packs. Repeat on the

other end of the case.

3. Once the base frame is properly placed on the shim packs,

check the vertical level by placing a bubble level plumb to

the rear edge of the case; then add/remove shim levels as

needed. To check the horizontal level, repeat this process

after placing the bubble level on the rear sill.

TRIM OUT

Attach the front kick plate to the retainer using the screws

provided. To attach the end kick plates, slide them under the

case ends, thread the hanging connector tabs into the provided

slots, then drop the kick plates down into place (see Fig. 2).

Fig. 1 Cotter pin attaches the caster

to the case

COTTER PIN

CONNECTOR

TAB

SLOT

FRONT

KICK PLATE

SCREW

Fig. 2 Attaching the front and end kick plates

5

REFRIGERATION PIPING

Refrigeration components for OWZA cases are easily acces-

sible in the tank and beneath the case.

The expansion valve and suction line 1/4” access valve are

both located on the front-left side of the tank and are acces-

sible without lifting the fan plenum. These components may

be reached by lifting only the left-hand deck pan which mini-

mizes the need to remove product.

The diagram on page 7 illustrates all of the refrigeration

components in the case – the box-shaped dotted line indicates

those components that are located within the case tank.

Basic defi nitions of these components are listed below.

Access Valve

Access port on the evaporator that allows service personnel to

check system pressure.

Accumulator

A device installed on the suction line that is used to boil off

small amounts of liquid refrigerant so liquid does not reach the

compressor.

Compressor

An electrically driven piston pump that pumps vapor refriger-

ant from a low pressure level to a higher pressure level.

Condenser

The component in a refrigeration system that transfers the heat

that was absorbed by the refrigerant in the evaporator and the

heat of compression from the system by condensing the refrig-

erant.

Condenser Fan

Fan that forces air through the air cooled condenser to aid heat

transfer.

Dual Pressure Control

A device that protects the compressor from low charge and high

pressure.

Split Evaporator

The component of the refrigeration system that absorbs heat

from the air by boiling liquid refrigerant to vapor.

Evaporator Fans

Fans that circulate air through the case and force air through the

evaporator to aid heat transfer.

Filter Drier

A device installed on the liquid line of a refrigeration system

that removes water and other impurities from the refrigerant in

the lines during initial start-up.

Receiver

The component in a refrigeration system that stores liquid re-

frigerant that is not being used by the system in low load condi-

tions or when the system is shut down.

Service Valve

A manually operated valve in the refrigeration system that is

used for various service operations such as isolating the high or

low sides of the system.

Suction Line Solenoid

A device that prevents liquid from entering the compressor.

Thermostatic Expansion Valve (TXV)

A valve that controls the fl ow of liquid refrigerant to the evapo-

rator coil and also separates the high pressure side of the system

from low pressure side of the system.

Thermostatic Expansion Valve (TXV) Bulb

A bulb that is attached to the suction line of the evaporator that

controls the TXV. Inside the bulb is a charge that reacts to

temperature and regulates the fl ow of refrigerant through the

expansion valve.

* * *

6

MODEL

OWZA

(Refrigeration Piping, cont'd)

TANK AREA

Split

Evaporator

TVX

Bulb

Fan

Plenum

1/4"

Access

Valve

Flow Direction

Service

Valve Compressor

Condenser Fan

Receiver

Filter

Drier

Dual Pressure

Control

Condenser

TVX TVX

1/4"

Access

Valve

Condenser

Compressor

Service

Valve

Condenser Fan

Service

Valve

Service

Valve

Receiver

Flow Direction

Filter

Drier

7

PLUMBING

MODEL

OWZA

The “P” trap assembly – attached to the case at the factory so

no assembly is required – directs the case drainage to the drain

pan.

The case drain is located front-and-center in the case for con-

venient access – simply remove the front kick plate. Should

any future maintenance issues arise, it is important to note the

outlet is specially molded with PVC material and the “P” trap

is constructed of PVC. Care should be given to make certain

that all connections are water tight and are sealed with appro-

priate PVC primer and PVC cement.

Be certain that the case is properly leveled to ensure proper

drainage.

"P"

TRAP

DRAIN

VALVE

EVAPORATOR

PAN

8

The OWZA comes pre-wired with a NEMA L14-30P twist-

lock plug (250 volt, 4-prong). For export models, a NEMA

L6-30 twist-lock plug (250 volt, 3-prong) is used.

Dual Dixell XR03CX digital controllers are provided for

case operation and programming. The controllers are located

inside the electrical junction box and are utilized according to

your temperature preference: low-temperature operation only

uses the left-hand controller while medium-temperature opera-

ELECTRICAL CONNECTIONS

NEMA L6-30 PLUG

(TWIST LOCK)

BREAKER

SWITCH

MODEL

OWZA

tion utilizes on the right-hand controller.

The case is turned ON/OFF via an electric breaker that is

located on the electrical junction box, in the left-hand side of

the case behind the front kick plate.

NOTE: Dixell controller information and user setpoints can

be found in this manual's Appendix section.

DIGITAL

CONTROLLERS

NEMA L14-30P PLUG

(TWIST LOCK)

9

JUNCTION

BOX

AIR FLOW, DEFROST & TEMP CONTROL

DEFROST & TEMPERATURE CONTROLS

OWZA cases are equipped with both Electric (low-temp) and

Timed-Off (medium-temp) defrost and can be run in either low-

or medium-temperature defrost modes. Switching between the

two different temperature modes is easily done by using a spe-

cial key switch located on the left-bottom-front of the case (see

Fig. 3).

The rear baffle (see diagram below) contains the sensor bulb

and probe for electric defrost termination; the sensor bulb for

temperature control; and the discharge air probe.

The defrost termination control thermostat and the temperature

control thermostat are located in the junction box underneath

the case on the bottom-left side (see diagram below). To ac-

cess the thermostats, you must first remove the front kick plate,

then remove the junction box cover. For instructions on remov-

Electric defrost termination sensor bulb

Electric defrost termination probe

Temperature control sensor bulb

Discharge air probe

1. DISCHARGE AIR

2. LOAD LIMIT

3. AIR CURTAIN

4. RETURN AIR

ing the front kick plate and lower front panel, see the trim out

section of this manual on page 5.

It is important to consult the control setting guidelines shown

on page 2 before setting the defrost schedule. Further adjust-

ments may be required depending on store conditions.

AIR FLOW & PRODUCT LOAD

Cases have been designed to provide maximum product capac-

ity within the refrigerated air envelope. Please keep products

within the load limit line shown on the diagram below.

It is important that you do not overload the food product display

so that it impinges on the air fl ow pattern. Overloading will

cause malfunction and the loss of proper temperature levels,

particularly when discharge and return air sections are covered.

1

1

4

3

2

Defrost termination control thermostat

Temperature control thermostat

LOW TEMP

MED TEMP

Fig. 3 Low/Med Temp

keyed switch

10

CASE CLEANING

Cases are designed to facilitate cleaning. All surfaces pitch to

a deep-drawn drain trough that angles toward the front-center

of the case where the waste outlet is located for easy access.

The coil is covered to prevent waste fluids from entering, but

it is easily accessible for cleaning: simply remove the two

coil-cover fasteners, then lift and remove the coil cover. With

the coil cover removed, be certain to exercise extreme caution

when working in the case - the coil has many sharp edges that

can result in serious injuries. When cleaning is complete, be

certain that both the plenum and coil cover are properly closed

in order to avoid air leaks.

FANS

The fan blades are 8” in diameter. It is important that the

blade pitch be maintained as specified. Do not attempt a

field modification by altering the blades.

Fan motors may be changed with an easy two-step process

that does not require lifting up the plenum, thereby, avoiding

the necessity to unload the entire product display to make a

change:

1. Unplug the fan motor, easily accessible outside the ple-

num.

2. Remove the six fasteners, then lift out the entire fan bas-

ket.

USE & MAINTENANCE

DANGER

▲



SHOCK HAZARD

Always disconnect power to case when servicing or

cleaning. Failure to do so may result in serious injury

or death.

CLEANING PROCEDURES

• A periodic cleaning schedule should be established to

maintain proper sanitation, insure maximum operating ef-

ficiency, and avoid the corrosive action of food fluids on

metal parts that are left on for long periods of time. We

recommend cleaning once a week.

• To avoid shock hazard, be sure all electrical power is turned

off before cleaning. In some installations, more than one

disconnect switch may have to be turned off to completely

de-energize the case.

• Check waste outlet to insure it is not clogged before start-

ing the cleaning process and avoid introducing water faster

than the case drain can carry it away.

• Avoid spraying cleaning solutions directly on fans or elec-

trical connections.

• Allow cases to be turned off long enough to clean any frost

or ice from coil and flue areas.

• Use mild detergent and warm water. When necessary, wa-

ter and baking soda solution will help remove case odors.

Avoid abrasive scouring powders or pads.

• Remove front panels and clean underneath the case with a

broom and a long handled mop.

• Use warm water and a disinfecting cleaning solution when

cleaning underneath the cases.

WARNING

▲



Exercise extreme caution when working in a case with

the coil cover removed. The coil contains many sharp

edges that can result in severe cuts to the hands and

arms.

FAN ASSEMBLY

FAN

MOTOR

PLUG

FAN

BASKET

COVER

SCREW

11

1. Contact the Service Parts Department at:

1-800-283-1109

2. Provide the following information about the part you

are ordering:

• Model number and serial number of the case for

which the part is intended.

• Length of the part (if applicable).

• Color of part (if painted) or color of polymer part.

• Whether part is for left- or right-hand application.

• Quantity

*Serial plate is located on the right-hand side of the rear baffle, inside the product area.

3. If the parts are to be returned for credit, ask the

Parts Department to furnish you with a Return

Material Authorization Number.

PARTS ORDERING

12

APPENDIX A:

DOMESTIC WIRING DIAGRAM

APPENDIX B:

EXPORT WIRING DIAGRAM

APPENDIX C:

CONTROLLER INFORMATION

dIXEL

Operating Manual

1592020130

1592020130 XR03_04CX GB 16.01.07.doc XR03CX – XR04CX

DIGITAL CONTROLLER

XR03CX – XR04CX

1. CONTENTS

1. Contents __________________________________________________________________________1

2. General warnings ___________________________________________________________________ 1

3. General description__________________________________________________________________ 1

4. Regulation_________________________________________________________________________ 1

5. Defrost ___________________________________________________________________________ 1

6. Front panel commands _______________________________________________________________ 1

7. Parameters ________________________________________________________________________ 1

8. Digital inputs _______________________________________________________________________ 2

9. Installation and mounting _____________________________________________________________ 2

10. Electrical connections ________________________________________________________________ 2

11. How to use the hot key _______________________________________________________________ 2

12. Alarm signalling_____________________________________________________________________ 2

13. Technical data______________________________________________________________________ 2

14. Connections _______________________________________________________________________3

15. Default setting values ________________________________________________________________ 3

2. GENERAL WARNINGS

PLEASE READ BEFORE USING THIS MANUAL

1. This manual is part of the product and should be kept near the instrument for easy and quick

reference.

2. The instrument shall not be used for purposes different from those described hereunder. It

cannot be used as a safety device.

3. Check the application limits before proceeding.

SAFETY PRECAUTIONS

• Check the supply voltage is correct before connecting the instrument.

• Do not expose to water or moisture: use the controller only within the operating limits avoiding

sudden temperature changes with high atmospheric humidity to prevent formation of

condensation

• Warning: disconnect all electrical connections before any kind of maintenance.

• Fit the probe where it is not accessible by the End User. The instrument must not be opened.

• In case of failure or faulty operation send the instrument back to the distributor or to “Dixell

S.p.A.” (see address) with a detailed description of the fault.

• Consider the maximum current which can be applied to each relay (see Technical Data).

• Ensure that the wires for probes, loads and the power supply are separated and far enough from

each other, without crossing or intertwining.

• In case of applications in industrial environments, the use of mains filters (our mod. FT1) in

parallel with inductive loads could be useful.

3. GENERAL DESCRIPTION

The XR03CX, in 32×74x50mm short format, is microprocessor based controller suitable for applications on

normal temperature refrigerating units. It provides two relay output: one for compressor and the other one for

alarm signalling or as auxiliary output. It provides an NTC probe input and a digital input for alarm signalling,

for switching the auxiliary output or for start defrost. The instrument is fully configurable through special

parameters that can be easily programmed through the keyboard or the by HOTKEY.

The XR04CX, in 32×74x50mm short format, is microprocessor based controller suitable for applications on

normal or low temperature refrigerating units. It provides two relay output: one for compressor and the other

one for defrost. It provides two NTC probe inputs, one for room temperature and other one to control defrost

termination. The instrument is fully configurable through special parameters that can be easily programmed

through the keyboard or the by HOTKEY.

4. REGULATION

The regulation is performed according to

the temperature measured by the

thermostat probe with a positive

differential from the set point: if the

temperature increases and reaches set

point plus differential the compressor is

started and then turned off when the

temperature reaches the set point value

again.

In case of fault in the thermostat probe the start and stop of the compressor are timed through

parameters “Cy” and “Cn”.

5. DEFROST

XR03CX

Defrost is performed through a simple stop of the compressor. Parameter “id” controls the interval

between defrost cycles, while its length is controlled by parameter “Md”.

XR04CX

Two defrost modes are available through the “td” parameter:

• td=EL → defrost through electrical heater (compressor OFF)

• td=in → hot gas defrost (compressor ON).

Other parameters are used to control the interval between defrost cycles (id) ), its maximum length

(Md) and two defrost modes: timed or controlled by the evaporator’s probe. At the end of defrost

dripping time is started, its length is set in the dt parameter. With dt=0 the dripping time is disabled.

6. FRONT PANEL COMMANDS

To display target set point, in

programming mode it selects a

parameter or confirm an

operation

To start a manual defrost

In programming mode it

browses the parameter codes

or increases the displayed

value

AUX

In programming mode it

browses the parameter codes

or decreases the displayed

value

KEYS COMBINATION

+ To lock or unlock the keyboard

+ To enter in programming mode

+ To return to room temperature display

LED MODO SIGNIFICATO

On Compressore enabled

Flashing Anti short cycle delay enabled (AC parameter)

On Defrost in progress

Flashing Dripping in progress

On Measurement unit

Flashing Programming mode

On Measurement unit

Flashing Programming mode

HOW TO SEE THE SET POINT

1. Push and immediately release the SET key, the set point will be showed;

2. Push and immediately release the SET key or wait about 5s to return to normal visualisation.

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 “°C” or “°F” LED starts blinking;

3. To change the Set value push the o or n 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. Enter the Programming mode by pressing the SET+ keys for 3s (“°C” or “°F” LED starts

blinking).

2. Select the required parameter. Press the “SET” key to display its value

3. Use or to change its value.

4. Press “SET” to store the new value and move to the following parameter.

To exit: Press SET+ 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.

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+ keys for 3s (“°C” or “°F” LED starts

blinking).

2. Released the keys, then push again the SET+ keys for more than 7s. The L2 label will be

displayed immediately followed from the Hy parameter.

NOW YOU ARE IN THE HIDDEN MENU.

3. Select the required parameter.

4. Press the “SET” key to display its value

5. Use or to change its value.

6. Press “SET” to store the new value and move to the following parameter.

To exit: Press SET+ or wait 15s without pressing a key.

NOTE1: if none parameter is present in L1, after 3s the “nP” message is displayed. Keep the keys

pushed till the L2 message is displayed.

NOTE2: the set value is stored even when the procedure is exited by waiting the time-out to expire.

HOW TO MOVE A PARAMETER FROM THE HIDDEN MENU TO THE FIRST

LEVEL AND VICEVERSA.

Each parameter present in the HIDDEN MENU can be removed or put into “THE FIRST LEVEL” (user

level) by pressing SET+ . In HIDDEN MENU when a parameter is present in First Level the decimal

point is on.

TO LOCK THE KEYBOARD

• Keep pressed for more than 3s the and keys.

• The “OF” message will be displayed and the keyboard will be locked. If a key is pressed more

than 3s the “OF” message will be displayed.

TO UNLOCK THE KEYBOARD

Keep pressed together for more than 3s the and keys till the “on” message will be displayed.

7. PARAMETERS

REGULATION

dIXEL

Operating Manual

1592020130

1592020130 XR03_04CX GB 16.01.07.doc XR03CX – XR04CX

Hy Differential: (0,1°C ÷ 25°C) Intervention differential for set point. Compressor Cut IN is SET

POINT + differential (Hy). Compressor Cut OUT is when the temperature reaches the set point.

LS Minimum SET POINT: (-55°C÷SET/-58°F÷SET): Sets the minimum value for the set point..

US Maximum SET POINT: (SET÷99°C/ SET÷99°F). Set the maximum value for set point.

ot First probe calibration: (-9.9÷9.9°C) allows to adjust possible offset of the first probe.

P2 Evaporator probe presence: n= not present; y= the defrost stops by temperature. (Only

XR04CX)

oE Second probe calibration: (-9.9÷9.9°C) allows to adjust possible offset of the second probe.

(Only XR04CX)

od Outputs activation delay at start up: (0÷99min) 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.

AC Anti-short cycle delay: (0÷50 min) minimum interval between the compressor stop and the

following restart.

Cy Compressor ON time with faulty probe: (0÷99 min) time during which the compressor is active

in case of faulty thermostat probe. With Cy=0 compressor is always OFF.

Cn Compressor OFF time with faulty probe: (0÷99 min) time during which the compressor is OFF

in case of faulty thermostat probe. With Cn=0 compressor is always active.

CH Kind of Action (Only XR03CX): cL= cooling action; Ht = heating action;

DISPLAY

CF Measurement unit: (°C÷°F) °C =Celsius; °F =Fahrenheit. WARNING: When the measurement

unit is changed the SET point and the values of the parameters Hy, LS, US, oE, o1, AU, AL

have to be checked and modified if necessary).

rE Resolution (only for °C):(dE ÷ in) dE= decimal between -9.9 and 9.9°C; in= integer

Ld Default display: (P1 ÷ P2) P1= thermostat probe; P2= evaporator probe. SP=Set point (Only

XR04CX)

dy Display delay: (0÷15 min.) when the temperature increases, the display is updated of 1 °C/1°F

after this time.

DEFROST

td Defrost type: (EL – in) EL= electrical heater, compressor OFF; in= hot gas, compressor ON;

dE Defrost termination temperature (Only XR04CX): (-50÷50°C) if P2=Y it sets the temperature

measured by the evaporator probe, which causes the end of defrost.

id Interval between defrost cycles: (0÷99 ore) Determines the time interval between the

beginning of two defrost cycles.

Md Maximum length for defrost: (0÷99 min. with 0 no defrost) when P2=n, (not evaporator probe:

timed defrost) it sets the defrost duration, when P2 = y (defrost end based on temperature) it sets

the maximum length for defrost.

dd Start defrost delay: ( 0÷99min) This is useful when different defrost start times are necessary to

avoid overloading the plant.

dF Display during defrost: (rt / it / St / dF) rt= real temperature; it= start defrost temperature; SP=

SET-POINT; dF= label dF.

dt Drip time: (0÷99 min) time interval between reaching defrost termination temperature and the

restoring of the control’s normal operation. This time allows the evaporator to eliminate water

drops that might have formed due to defrost.

dP Defrost at power –on: (y÷n) y= at power on defrost starts; n= defrost doesn’t start at power-on

ALARMS

AU Maximum temperature alarm: (AL÷99°C) when this temperature is reached the alarm is

enabled, after the “Ad” delay time.

AL Minimum temperature alarm: (-55÷AU°C) when this temperature is reached the alarm is

enabled, after the “Ad” delay time.

Ad Temperature alarm delay: (0÷99 min) time interval between the detection of an alarm condition

and alarm signalling.

dA Exclusion of temperature alarm at startup: (0÷99 min) time interval between the detection of

the temperature alarm condition after instrument power on and alarm signalling.

tb Silencing buzzer (n-y):(Only XR03CX) n= silencing disabled, alarm relay stays on till alarm

conditions lasts; y= silencing enabled: alarm relay is switched OFF by pressing a key during an

alarm;

o1 Auxiliary relay configuration (dF/Fn/AL/AU/db): (Only XR03CX) dF= defrost; Fn= Fans; AL=

Alarm; AU= auxiliary; db= neutral zone;

AP Alarm relay polarity (cL-OP): (Only XR03CX) cL= when active is closed; OP= when active is

opened

DIGITAL INPUT (Only XR03CX)

iP Digital input polarity: (oP ÷ cL) oP= activated by closing the contact; cL= activated by opening

the contact;

iF Digital input configuration: (EA/bA/do/dF/Au/Hc) EA= external alarm: “EA” message is

displayed; bA= serious alarm “CA” message is displayed; do= door switch function; dF= defrost

activation; Au =not used; Hc= inversion of the kind of action;

di Digital input delay: (0÷99 min) with iF=EA or bA delay between the detection of the external

alarm condition and its signalling. . With iF=do it represents the delay to activate the door open

alarm.

dC Compressor and fan status when open door: (no/Fn/cP/Fc): no= normal; Fn = Fans OFF; cP

=Compressor OFF; Fc = Compressor and fans OFF;

rd Regulation with door open: (n÷y) n = no regulation if door is opened; Y= when di is elapsed

regulation restarts even if door open alarm is present;

OTHER

d1 Thermostat probe display (read only)

d2 Evaporator probe display (read only) (Only XR03CX)

Pt Parameter code table

rL Software release

8. DIGITAL INPUTS

The free voltage digital input is programmable in different configurations by the “iF” parameter.

DOOR SWITCH (iF=do)

It signals the door status and the corresponding relay output status through the “dC” parameter: no =

normal (any change); Fn = Fan OFF; CP = Compressor OFF; FC = Compressor and fan OFF.

Since the door is opened, after the delay time set through parameter “di”, the door alarm is enabled,

the display shows the message “dA” and the regulation restarts if rd = y. The alarm stops as soon

as the external digital input is disabled again. With the door open, the high and low temperature alarms

are disabled.

EXTERNAL ALARM (iF=EA)

As soon as the digital input is activated the unit will wait for “di” time delay before signalling the “EA”

alarm message. The outputs status don’t change. The alarm stops just after the digital input is de-

activated.

SERIOUS ALARM (iF=bA)

When the digital input is activated, the unit will wait for “di” delay before signalling the “CA” alarm

message. The relay outputs are switched OFF. The alarm will stop as soon as the digital input is de-

activated.

SWITCHING SECOND RELAY ON (iF=Au)

When o1=Au it switches on and off the second relay.

START DEFROST (iF=dF)

It starts a defrost if there are the right conditions. After the defrost is finished, the normal regulation will

restart only if the digital input is disabled otherwise the instrument will wait until the “dd” safety time is

expired.

INVERSION OF THE KIND OF ACTION: HEATING - COOLING (iF=Hc)

This function allows to invert the regulation of the controller: from cooling to heating and viceversa.

9. INSTALLATION AND MOUNTING

Instrument XR03CX and XR04CX shall be mounted on vertical

panel, in a 29x71 mm hole, and fixed using the special bracket

supplied.

The temperature range allowed for correct operation is 0÷60 °C.

Avoid places subject to strong vibrations, corrosive gases,

excessive dirt or humidity. The same recommendations apply to

probes. Let air circulate by the cooling holes.

10. ELECTRICAL CONNECTIONS

The instrument 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 instrument’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.

1.1 PROBES

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.

11. HOW TO USE THE HOT KEY

1.2 HOW TO PROGRAM THE HOT KEY FROM THE INSTRUMENT (UPLOAD)

1. Program one controller with the front keypad.

2. When the controller is ON, insert the “Hot key” and push key; the "uP" message appears

followed a by flashing “Ed”

3. Push “SET” key and the “Ed” will stop flashing.

4. Turn OFF the instrument remove the “Hot Key”, then turn it ON again.

NOTE: the “Er” message is displayed for failed programming. In this case push again o key if you want

to restart the upload again or remove the “Hot key” to abort the operation.

1.3 HOW TO PROGRAM AN INSTRUMENT USING HOT KEY (DOWNLOAD)

1. Turn OFF the instrument.

2. Insert a programmed “Hot Key” into the 5 PIN receptacle and then turn the Controller ON.

3. Automatically the parameter list of the “Hot Key” is downloaded into the Controller memory, the

“do” message is blinking followed a by flashing “Ed”.

4. After 10 seconds the instrument will restart working with the new parameters.

5. Remove the “Hot Key”..

NOTE: the “Er” message is displayed for failed programming. In this case push again o key if you want

to restart the upload again or remove the “Hot key” to abort the operation.

12. ALARM SIGNALLING

Mess. Cause Outputs

"P1" Room probe failure Compressor output according to “Cy” e “Cn”

"P2" Evaporator probe failure Defrost end is timed (Only XR04CX)

"HA" Maximum temperature alarm Outputs unchanged

"LA" Minimum temperature alarm Outputs unchanged

“EA” External alarm Outputs unchanged

“CA” Serious external alarm All outputs OFF.

“dA” Door Open Compressor and fans restarts

1.4 ALARM RECOVERY

Probe alarms P1” and “P2” start some seconds after the fault in the related probe; they automatically

stop some seconds after the probe restarts normal operation. Check connections before replacing the

probe. Temperature alarms “HA” and “LA” automatically stop as soon as the temperature returns to

normal values.

Alarms “EA” and “CA” (with iF=bA) recover as soon as the digital input is disabled.

13. TECHNICAL DATA

Housing: self extinguishing ABS.

Case: frontal 32x74 mm; depth 60mm;

Mounting: panel mounting in a 71x29mm panel cut-out

dIXEL

Operating Manual

1592020130

1592020130 XR03_04CX GB 16.01.07.doc XR03CX – XR04CX

Protection: IP20; Frontal protection: IP65

Connections: Screw terminal block ≤ 2,5 mm2 wiring.

Power supply: according to the model: 12Vac/dc, ±10%; 24Vac/dc, ±10%; 230Vac ±10%, 50/60Hz,

110Vac ±10%, 50/60Hz

Power absorption: 3VA max

Display: 2 digits, red LED, 14,2 mm high; Inputs: Up to 2 NTC or PTC probes.

Digital input: free voltage contact

Relay outputs: compressor SPST 8(3) A, 250Vac; or 20(8)A 250Vac

defrost or Aux: SPDT 8(3) A, 250Vac

Data storing: on the non-volatile memory (EEPROM).

Kind of action: 1B; Pollution grade: 2;Software class: A.;

Rated impulsive voltage: 2500V; Overvoltage Category: II

Operating temperature: 0÷60 °C; Storage temperature: -30÷85 °C.

Relative humidity: 20÷85% (no condensing)

Measuring and regulation range: NTC probe: -40÷110°C (-40÷230°F);

Resolution: 0,1 °C or 1°C or 1 °F (selectable); Accuracy (ambient temp. 25°C): ±0,7 °C ±1 digit

14. CONNECTIONS

XR03CX –20A o 8A Compressor

NOTE: The compressor relay is 20(8)A or 16(6)A depending on the model.

NOTE: 120Vac or 24Vac/dc or 12Vac/dc connect to 6-7

XR04CX –20A o 8A Compressor

NOTE: The compressor relay is 20(8)A or 16(6)A depending on the model.

NOTA: 120Vac o 24Vac/dc o 12Vac/dc connect to 6 and 7

15. DEFAULT SETTING VALUES

LAB

EL DESCRIPTION RANGE DEFAULT

REGULATION

Hy Differential 0.1 ÷ 25°C/1 ÷ 45°F 2.0°C / 4 °F

LS Minimum Set Point -55°C÷SET/-67°F÷SET -55 °C /-

55°F

US Maximum Set Point SET÷99°C/ SET÷210°F 99 °C /

99°F

ot First probe calibration -9.9÷9.9°C/-18÷18°F 0.0

P2 Second probe presence (Only

XR04CX) n – Y y

oE Second probe calibration (Only

XR04CX) -9.9÷9.9°C/-18÷18°F 0.0

od Outputs activation delay at start up 0 ÷ 99 min 0

AC Anti-short cycle delay 0 ÷ 50 min 1

Cy Compressor ON time faulty probe 0 ÷ 99 min 15

Cn Compressor OFF time faulty probe 0 ÷ 99 min 30

CH Kind of Action (Only XR03CX) cL ÷ Ht cL

DISPLAY

CF Measurement units °C - °F °C / °F

rE Resolution (only for °C) dE – in dE

Ld Default Display (Only XR04CX) P1-P2 - SP P1

dy Display delay 0 ÷ 15 min 0

DEFROST

td Defrost type EL – in EL

dE Defrost termination temperature -50÷50°C/-58÷122°F 8.0 °C / 46

°F

id Interval between defrost cycles 0 ÷ 99 hours 6

Md Maximum length for defrost 0 ÷ 99 min. 30

dd Start defrost delay 0 ÷ 99 min. 0

dF Display during defrost rt – in – SP – dF it

dt Drip time 0 ÷ 99 min 0

dP Defrost at power-on y - n n

ALARMS

AU Maximum temperature alarm ALL÷99°C / ALL÷210°F 99 °C / 99

°F

AL Minimum temperature alarm -55°C÷ALU/-67°F÷ALU -55 °C / -55

°F

Ad Temperature alarm delay 0 ÷ 99 min 15

dA Exclusion of temperature alarm at

startup 0 ÷ 99 min 90

DIGITAL INPUT (Only XR03CX)

iP Digital input polarity cL – oP cL

iF Digital input configuration EA – bA – do – dF –

Au– db EA

di Digital input delay 0 ÷ 99 min 5

dC Compressor and fan status when open

door no /Fn / cP / Fc FC

rd Regulation with door open n - Y y

OTHER

d1 Thermostat probe display Read Only - - -

d2 Evaporator probe display Read Only - - -

Pt Parameter code table Read Only - - -

rL Firmware release Read Only - - -

dIXEL S.p.a.

Z.I. Via dell’Industria, 27 - 32010 Pieve d’Alpago (BL) ITALY

tel. +39 - 0437 - 98 33 - fax +39 - 0437 - 98 93 13

htt

p

://www.dixell.com E-mail: dixell

@

dixell.com

APPENDIX D:

USER SET POINTS

07/09

WARRANTY

HEREINAFTER REFERRED TO AS MANUFACTURER

FOURTEEN MONTH WARRANTY. MANUFACTURER’S PRODUCT IS WARRANTED TO BE FREE FROM DEFECTS

IN MATERIAL AND WORKMANSHIP UNDER NORMAL USE AND MAINTENANCE FOR A PERIOD OF FOURTEEN

MONTHS FROM THE DATE OF ORIGINAL SHIPMENT. A NEW OR REBUILT PART TO REPLACE ANY

DEFECTIVE PART WILL BE PROVIDED WITHOUT CHARGE, PROVIDED THE DEFECTIVE PART IS RETURNED TO

MANUFACTURER. THE REPLACEMENT PART ASSUMES THE UNUSED PORTION OF THE WARRANTY.

This warranty does not include labor or other costs incurred for repairing, removing, installing, shipping, servicing, or

handling of either defective parts or replacement parts.

The fourteen month warranty shall not apply:

1. To any unit or any part thereof which has been subject to accident, alteration, negligence, misuse or

abuse, operation on improper voltage, or which has not been operated in accordance with the

manufacturer’s recommendation, or if the serial number of the unit has been altered, defaced, or removed.

2. When the unit, or any part thereof, is damaged by fire, flood, or other act of God.

3. Outside the continental United States.

4. To labor cost for replacement of parts, or for freight, shipping expenses, sales tax or upgrading.

5. When the operation is impaired due to improper installation.

6. When installation and startup forms are not properly complete or returned within two weeks after startup.

THIS PLAN DOES NOT COVER CONSEQUENTIAL DAMAGES. Manufacturer shall not be liable under any circumstanc-

es for any consequential damages, including loss of profit, additional labor cost, loss of refrigerant or food products,

or injury to personnel or property caused by defective material or parts or for any delay in its performance hereunder

due to causes beyond its control. The foregoing shall constitute the sole and exclusive remedy of any purchases

and the sole and exclusive liability of Manufacturer in connection with this product.

The Warranties are Expressly in Lieu of All Other Warranties, Express of Implied and All Other Obligations or

Liabilities on Our Part. The Obligation to Repair or Replace Parts or Components Judged to be Defective in

Material or Workmanship States Our Entire Liability Whether Based on Tort, Contract or Warranty. We Neither

Assume Nor Authorize Any Other Person to Assume for Us Any Other Liability in Connection with Our Product.

MAIL CLAIM TO:

Hill PHOENIX

Display Merchandisers

1925 Ruffin Mill Road

Colonial Heights, VA 23834

1-800-283-1109

Hill PHOENIX

Refrigeration Systems &

Electrical Distribution Products

709 Sigman Road

Conyers, GA 30013

770-285-3200

1925 Ruffin Mill Road, Colonial Heights, VA 23834

Due to our commitment to continuous improvement all specifications are subject to change without notice.

Hill PHOENIX is a Sustaining Member of the American Society of Quality.

Visit our web site at www.hillphoenix.com

Warning

Maintenance & Case Care

When cleaning cases the following must be performed

PRIOR to cleaning:

To avoid electrical shock, be sure all electric power is

turned off before cleaning. In some installations, more

than one switch may have to be turned off to complete-

ly de-energize the case.

Do not spray cleaning solution or water directly on fan

motors or any electrical connections.

All lighting receptacles must be dried off prior to inser-

tion and re-energizing the lighting circuit.

Please refer to the Use and Maintenance section of this installation manual.

Tel: 1-800-283-1109

BDM0714