BDB218DA12XXA - Fridge DAIKIN - Free user manual and instructions

USER MANUAL BDB218DA12XXA DAIKIN

Safety recommendations

Table of warning and attention plates

Description of the unit

Dimensions of evaporator pipes R404A

Fitting the remote panel

Connection to water system

Checks, regulations and adjustments

Maintenance and repairs

Service operations to be carried out by qualified technicians or by the manufacturer

How to order spare parts

How to dispose of the packing

How to dispose of the unit CON TENTSThank you for choosing Uniblock. Please read these instructions carefully. They provide details and advice on the correct method of installing, using and maintaining this unit, in order to obtain maximum reliability, efficiency and long life.

1. SAFETY RECOMMENDATIONS

When installing and using the unit please follow the recommendations listed here below.

Installation shall be carried out in strict compliance with the diagrams and instructions supplied by the manufacturer. x Damages due to improper connections are excluded. x The electric system available where the unit is installed shall meet the relevant standards in force. Maintenance shall be effected by trained personnel or by the manufacturer according to the provisions supplied by EN378. WARNING Use safety gloves to protect your hands from possible cuts.

The user is strongly recommended to contact the manufacturer before attempting any intervention on the unit and any use not corresponding to the manufacturer’s indications (in particular as for the field of application) and to enquire about the possible dangers and contra-indications connected with an improper use of the machine.

The unit shall be used following these instructions and sticking to the destination of use indicated by the supplier. Any incorrect use can result in damages to the unit and represents a serious danger for people’s health. ATTENTION The unit is not suitable for working in explosive environments. Therefore, the use of the unit in an explosion-dangerous atmosphere is absolutely forbidden. ATTENTION The unit is not suitable for working in salty environments. In such a case protect condenser and evaporator with appropriate means.

When maintenance involves operations on the refrigerating circuit, empty the system and let it reach the atmospheric pressure. WARNING Do not discharge the refrigerant in the atmosphere. It must be recovered by specialized technicians using suitable equipment.

x Quantity and quality of the refrigerant to be charged are indicated on the data plate. x Do not use refrigerants of different kind (especially inflammable fluids, for example hydrocarbons) or air. x Do not modify or alter the refrigerating circuit or its components (for example: welding on compressor body) x The final user shall protect the system from external fire dangers.22

Attention: hot or cold parts.

Attention: switch off before operating on the unit.

Attention: danger of electrocution.

Connect this cable to a circuit breaker, never to the main line directly.

Colours of supply cable wires

important: clean the condenser periodically by blowing air from the inside outwards. Stop the unit before cleaning.

1) Year of manufacture

The DB-O series includes air-cooled or water-cooled (optional) condensing units built in split version. They consist of:

a condensing unit placed outside the cold room;

an evaporator installed inside the cold room;

an electric control panel placed on the condensing unit, complete with wall- mounted remote control panel. DB-O single blocks are compression units where cold is produced by vaporizing a liquid refrigerant (HFC type) at low pressure in a heat exchanger (evaporator). The resulting vapour is brought again into the liquid state by mechanical compression at a higher pressure, followed by cooling in another heat exchanger (condenser). The compressor is hermetic, with reciprocating motion, supplied with single-phase or three-phase power. Defrost takes place automatically in pre-set cycles, by means of heaters; manual defrost is also possible.

5. HANDLING The unit can be handled by lifting and transport means.

WARNING Make sure that no one is in transit in the operating area of the lifting/transport means to prevent any possible accidents to people.

If the unit is in a wooden case or crate, sling the packing properly before handling it. Lifting speed shall be such as not to make the packed unit oscillate dangerously and possibly fall.25

The unit is supplied with warning and attention plates as listed in the relevant table.

To obtain optimal operation of the unit act as follows:

Place the unit in a well ventilated room, far from heat sources.

Limit the number of door openings.

Make sure that the unit has good air supply and discharge.

Fit a drain line to the defrost water drain connection in the lower part of the evaporator. Solution 1 Solution 3 Solution 2 Installation in a coldroom with more than one unit27

When installing the unit leave enough free room to allow opening, correct use and easy maintenance in safe conditions. 6.5 Installation Place the condensing unit on the floor. Install the evaporator as follows: A) Drill the holes in the ceiling keeping the necessary distance from the wall 140 cm.

B) Please select the matching cable length for sensor cables and power cables between the evaporating unit and the condensing unit. (The length must be equal to the length of the pre-charged pipe for the models SPO/GS and standard length of 10 meters for the models DBO/DBS up to the model 135). C) Fit a drain line to the condensate water drain connection in the lower part of the evaporator.

Connection of refrigerating system: use the specially-supplied cock connections on the condensing unit and on the evaporator. With closed cocks put pipe fittings in vacuum conditions; then open the cocks and start the unit. Fit a drain line to the condensate water drain connection in the lower part of the evaporator. Make reference to the pictures supplied to obtain a good operation of the system.

6.6 Dimensions of evaporator pipes

6.7 Fitting the remote panel

Fix the back plate to the wall using the pre-drilled holes; be careful the panel is kept in a vertical position. Fit the connecting cable between panel and unit making sure not to bundle it with other cables. ATTENTION Check that the unit and its devices have suffered no damages during transport. Pay special attention to the components secured to the electric panel door and to the refrigerating circuit pipes. Mount the unit as shown in the drawings; make sure that the electric connections are carried out properly. 6.8 Safety devices The following mechanical safety devices are supplied: 1. Fixed front and side protections for evaporator and condensing unit, secured by locking screws. 2. External fan protections placed on the evaporating unit, secured with screws. The following electrical safety devices are supplied: a. Protection of fans (belonging to motors) against high power absorption; with automatic reset. b. High pressure switch (only for special components) to protect against excessive pressure; with automatic reset.

WARNING Above devices have been developed to safeguard the operator’s safety.

Clean the unit carefully. Remove any dust, foreign substances and dirt possibly deposited during handling. Use detergents and degreasers. ATTENTION Solvents are not allowed.

ATTENTION Before connecting the unit make sure that mains voltage and frequency correspond to the values shown in the data plate. Voltage tolerance: +/- 10% compared to nominal value.31

7.1 Electric connection

Connect the unit after checking the panel components. When choosing the protective device take the following into consideration: should the prospective short- circuit current at installation point be higher than 10 KA, install a limiting device which reduces its peak value to 17 KA. Prospective short-circuit current (Ik): current which would flow in case of failure due to negligible impedance, provided that no protective device against overcurrent has been installed on the circuit. Peak value: max value of prospective short-circuit current ATTENTION Connection to the electric line shall be effected applying a suitable safety device (a circuit breaker or a ground fault interrupter) selected by the installer on the basis of the line involved and of the absorption indicated on the unit plate. If a cold room includes more units, each unit shall be provided with its own safety device. Connect the unit paying attention to the colours of the supply cable wires: a) 230V/ 1/50

Blue = Neutral Yellow/Green = Ground Brown = Phase

Yellow/Green = Ground

Yellow/Green = Ground

We advise to install a microswitch (not supplied) on the cold room door which will: x switch on the light in the cold room, stop compressor and evaporator fan x override the temperature alarm (for about one hour after door closing) every time the door is opened. Should microdoor, cold room light, door heater be necessary, carry out following connections: Microdoor Remove the jumper between terminals 19 and 20 of the electronic control box and connect the microdoor cable according to the following condition: closed contact with closed door. Cold room light Connect as shown in the wiring diagram. Cold room lamp features: 230 Volt and 100 Watt max. Door heater Connect as indicated by the plate on terminal board. Heater is indicated by "EP". Output voltage: 230 Volt. WARNING Any defective electrical part should be replaced by trained personnel exclusively. The electric connection should be effected by qualified personnel.

7.2 Connection to water system (water condenser)

This connection is only necessary if the unit has a water-cooled condenser. It is effected by following the indications of the tags positioned by the inlet and outlet pipes. Connection pipes should never be smaller in diameter than those on the unit. A minimum water pressure of 1 bar is required for correct operation of the unit.32

ON: compressor is running, unit is refrigerating. Flashing: compressor is in start delay mode. OFF: compressor is off, room temperature is down to set value.

ON: evaporator fan is running. Flashing: evaporator fan is in start delay mode. OFF: evaporator fan is off. Defrost is in course.

Control LED (YELLOW) ON: Automatic or manual defrost is in course.

ON: alarm has been activated because of a malfunctioning sensor, or pressure switch intervention, or cold room temperature exceeding allowed tolerances. OFF: Unit is operating normally.

DISPLAY: on connection to the mains it shows OFF to indicate the condition of the unit. By pressing ON/OFF key for 3 seconds the unit is turned ON and the display shows the cold room temperature. In programming mode the parameters to be set are displayed; in alarm mode the alarm code is displayed.

"SET" key: when pressed it lights up and allows room temperature to be set. During programming it is used to pass from a submenu to an upper one.

"DOWN/ROOM LIGHT" key: in programming mode or when setting room temperature it is used to reduce the value displayed; otherwise it is used to switch on/off the cold room light.

"SB.M./UP" key: in programming mode it is used to increase the values displayed. If pressed for more than 5 seconds it enables manual defrost to be carried out.

"ON/OFF" key: when pressed for 3 seconds it turns the unit on or off. "Enter" key: it gives access to programming menu and submenus. Access to the programming mode requires the installator’s assistance and should be effected only if necessary.33

9. CHECKS, REGULATIONS AND ADJUSTMENTS Before turning the unit on, check that:

locking screws are tight

electrical connections have been carried out correctly. In the event that the unit has been opened:

no tools were left inside

there are no gas leaks

front cover is secured correctly

Before starting the unit act as follows:

Connect the unit to the mains. The display is turned on and shows OFF.

If the unit has a preheating cycle, leave it in this condition for at least 3 hours.

If the unit has a voltage monitor, leave it in this condition for at least 7 minutes to have the counting phase carried out

Set the required cold room temperature.

Press ON/OFF key to switch the unit on. ATTENTION When the unit has been turned off by means of the mains switch or by leaving the P-A-M switch in O position for over 3 hours in winter or 6 hours in summer, pre-start should be repeated. ATTENTION Medium temperature range: +10 -5°C Low temperature range: -15 -25°C

Setting room temperature: x Connect the unit to the mains. OFF is displayed. x Press SET for three seconds. The green led lights up and the previously set temperature is displayed. x To change this value press following keys:

UP to increase temperature DOWN to decrease temperature Press SET key or wait 5 seconds to have room temperature displayed. Now the unit is operating and does not require any further programming. The refrigerating cycle is fully automatic according to the factory-set parameters, which can be modified by authorised personnel only. ATTENTION 24 hours after starting check evaporator state. If ice has formed, defrost frequency should be increased. In low temperature units the evaporator condition should be checked every week during the first month of operation.

9.2 How to Lock / Unlock the keyboard

Lock x Keep pressed for more than 3’’ and keys. x The (POF) message will be displayed and the keyboard will be locked. At this point it will be possible only to see the set point or the Max o Min temperature stored. x If a key is pressed more than 3’’ the (POF) message will be displayed. Unlock x Keep pressed together for more 3’’ and keys, till the (Pon) message will be displayed.34

A wiring diagram, specific for the units of the DBO series, is enclosed with these use and maintenance instructions. 11. MAINTENANCE AND REPAIRS Suitable maintenance is crucial for obtaining longer life, perfect working conditions and high efficiency of the unit as well as for ensuring the safety features provided by the manufacturer. 12. ROUTINE MAINTENANCE Good operation of the unit requires the condenser to be cleaned periodically (frequency of cleaning depends on the environment where the unit is installed). Turn off the unit and clean it by blowing air from the inside outwards. Should no air jet be available, use a long- haired brush and work on the outside of the condenser. In case of water-cooled condensers have the unit cleaned by a plumber with special descaling agents. WARNING Use safety gloves to protect your hands from possible cuts.

WARNING Disconnect the unit before working on it.

12.1 Periodical maintenance

Periodically check wear condition of electrical contacts and remote switches; if necessary replace them.

12.2 Service operations to be carried out by qualified technicians or by the manufacturer

Following operations shall be carried out by qualified technicians or by the manufacturer exclusively. Under no circumstances the user is allowed to: x Replace electrical components. x Work on the electric equipment. x Repair mechanical parts. x Work on the refrigerating system. x Work on the control panel, ON/OFF and emergency switches. x Work on protection and safety devices.

12.3 Troubleshooting

During operation the following troubles may occur:

The unit does not operate perfectly. Check the refrigerating gas on the specially-fitted indicator available on all units fitted with a thermostat (check when the unit is operating and the cold room temperature is closed to the required value). Normally the indicator is clear; in the absence of gas, gas bubbles will appear.

Compressor or fans have stopped working.

Check fuses and circuit breakers protecting the main circuit. Should they have been activated, replace fuses or restore circuit breakers making sure that supply voltage and phase polarity are correct.

Check the circuit breaker protecting the auxiliary circuit or the fuse in the electronic control box.

If motor fan stops working, it can be restarted automatically, but the cause of the trouble should be identified. Check compressor/fan overtemperature devices inside the electric panel. Switch off mains switch before operating on same.

Check if the evaporator is ice-free; if necessary, immediately defrost the evaporator completely by pressing key (8) for 8 seconds (manual defrost). Once the defrosting cycle is completed, check if any ice has been left on the evaporator and repeat above operation. Shorter timer intervals between defrosting cycles should be set to reduce ice formation. ATTENTION: Do not use either hot water or any pointed, cutting, metal objects to remove ice from the evaporator.35

Unsatisfactory efficiency of the unit. If the unit does not perform adequately and no defects can be identified, check that: cold room doors are perfectly tight; no cold dispersion is available; the cold room is used wisely; no unfrozen liquids or foodstuffs are placed in the low temperature room; the evaporator is ice-free. We advise to install the units far from the doors, especially when the cold room is expected to be opened many times a day.

Removal of protections during machine operation is absolutely forbidden. They have been developed to safeguard the operator's safety.

Other troubles may be due to the triggering of the following electrical safety devices:

Fan thermal protection (incorporated in the motor) – automatic reset It protects electric fans against high power absorption due to:

Lack of a phase (only for three-phase models).

Ice in the evaporator.

Oil pressure switch - manual reset (only for compressors equipped with oil pump). It protects mechanical parts of compressor in case of lack of lubrication due to:

Excessive sediment level in oil.

Cold oil mixed with refrigerant. To reset the device, press the button on the pressure switch after at least 10 minutes from activation. In the meantime, keep sump heater on.

High pressure switch - manual reset. It protects the compressor from excessive pressures (which cause the pressure switch to be triggered very often) due to:

Non-operating condenser fans.

Excessive temperature in the room where the unit is installed.

Unit used in unsuitable conditions or with inappropriate products. To reset the device, press the button on the pressure switch.

Low pressure switch - automatic reset This device is activated every time the unit stops when reaching the right temperature. Sometimes it can be activated because of:

Lack of gas due to tube breakage or loosened unions

Ice in the evaporator WARNING Min. and max. pressure switches are placed in motor room. Before resetting, disconnect mains switch.

Thermistors - automatic reset (only for semi-hermetic compressors). Placed in compressor winding, they protect the motor from overheating (see wiring diagram).

Electronic min/max voltage relay (Monitor) - automatic reset (where available). It protects the unit from irregular supply voltage (about 12% of rated value).

Removal of protections during machine operation is absolutely forbidden. They have been developed to safeguard the operator’s safety.36

When the unit is in alarm mode, the control LED lights up, the buzzer (available if installed by the customer) starts operating and the display shows an alarm code allowing the immediate identification of the alarm. ALARM

(HA) alternating with cold room temperature. Excessive door openings. Too high temperature of products stored. Malfunction of the unit.

Low temperature (LA) alternating with cold room temperature. Malfunction of electronic controller. Service intervention

Sensor not connected

Evaporator sensor (P2) alternating with cold room temperature. Sensor not connected

Open Door (dA) alternating with cold room temperature. Door opening time exceeds max opening time set by parameter

Automatic reset when the door is closed. High/Low pressure

(PrE) alternating with room temperature; LED (4) lights up each time the high or low pressure switch is tripped. If more than 10 trips occur in one hour, then (PAL) alternating with cold room temperature is displayed and alarm relay is activated together with LED (4).

Faulty operation of condenser fan. Check condenser cleaning and gas charge. Switch off the refrigerating unit, wait a few seconds and switch on again. Voltage monitor

(bAL) alternating with cold room temperature. The voltage monitor is an electronic device which checks the supply voltage of the unit when voltage variations exceed +/-12%. The unit stops for about 6 minutes and restarts automatically if voltage is within the prescribed limits.

Warning: on first starting

the monitor carries out a counting phase of 7 minutes, during which the unit should be left connected but in OFF condition.

Wrong supply voltage

13. HOW TO ORDER SPARE PARTS When ordering spare parts make reference to the number written on the unit plate.

WARNING Worn parts should be replaced only by qualified personnel or by the manufacturer. 14. HOW TO DISPOSE OF THE PACKING Wooden, plastic, polystyrene packing shall be disposed of according to the regulations in force in the country where the unit is used. 15. HOW TO DISPOSE OF THE UNIT Do not discharge scrapped components in the environment. They should be disposed of by companies dealing with special waste collection and recovery, according to the regulations in force in the country where the unit is used. WARNING Do not discharge the refrigerant in the atmosphere. It should be disposed of by companies dealing with special waste collection and recovery.38 Declaration of conformity with article 14 of the EU regulation no. 517/2014 of the European Parliament and Council

The undersigned company ZANOTTI SPA – VAT NUMBER 01856570203 declares under its own responsibility that the pre-loaded machineries it manufactures contain hydrofluorocarbons contained in the quota system of the Union indicated in Chapter IV of the EU regulation no. 517/2014 as: □A. it is holder of authorizations issued in compliance with article 18, paragraph 2, of the

regulation no. 517/2014 and registered in the register indicated in article 7 of such regulation, at the moment of release for free circulation for the use of the quota of a manufacturer or importer of hydrofluorocarbons, without prejudice to article 15 of the EU regulation no. 517/2014, for the quantity of hydrofluorocarbons contained in the equipment. □B. the hydrofluorocarbons contained in the machineries have been placed on the market of the Union, subsequently exported and loaded in the machineries outside the Union, and that the company which has placed the hydrofluorocarbons on the market has issued a declaration in which it states that the quantity of hydrofluorocarbons has been or will be marked as placed on the market of the Union and that it has not been and will not be marked as supply designed for export pursuant article 15, paragraph 2, letter c), of the EU regulation no. 517/2014 and of the point 5C of the annex of the EU Implementing Regulation no. 517/2014 of the Commission. □C. the hydrofluorocarbons loaded in the machineries have been placed on the market by a manufacturer or importer of hydrofluorocarbons to which article 15 of the EU regulation no. 517/2014 applies.

Pegognaga, 01/01/2017 Chief Executive Officer39

Neutre = Terre = Phase Phase Phase

"SB.M./UP" key: in programming mode it is used to increase the values displayed. If pressed for more than 5 seconds it enables manual defrost to be carried out.

COMPRESSOR M 2 THERMISTOR

COMPRESSOR M 3 THERMISTOR

PREHEATING INDICATOR LAMP ( Comp. M 1 )

AUX.RELAY(heating-cycle)