DCS REFRIGERATED DRAWERS Service manual Model RF24D 1
TABLE OF CONTENTS 1. Introduction 1.1 Unit Specifications 3 1.2 Serial Nameplate 3 1.3 Before Servicing 3 1.4 Basic Refrigeration Tools 4 1.5 Installation 4 1.6 Electrical Requirements 4 2. Installation 2.1 Essential Requirements -Power 5 2.2 Essential Requirements -Select Location 5 2.3 Essential Requirements -Cabinet Clearance 5 2.4 Essential Requirements -Stability 5 2.
TABLE OF CONTENTS 7. Interior Components 7.1 Lights 7.2 Drawers (for Refrigerated Drawers) 7.3 Glides (for Refrigerated Drawers) 7.4 Divider/Center Section (for Refrigerated Drawers) 7.5 Heater Strip (for Refrigerated Drawers) 7.6 Circulation Fan Assembly 8. Wiring Diagram 9. Ordering Parts 10. Troubleshooting Guide 12.
Introduction 1.1 Unit Specifications Table A: Refrigerated Drawers Unit Cabinet Dimensions (in) Height 34 Width 29-7/8 Depth 24-1/4 Weight (lbs) 195 Capacity Gross (cu. ft.) 5.8 Electrical Requirements 120VAC/ 60 Hz 3.3 Amp Power Cord Length (ft) 7 Compressor Specifications Piston type 120Vac 60 Hz Refrigerant Charge (oz) 3.
Introduction 1.4 Basic Refrigeration Tools The following list contains some of the tools required for basic refrigeration repairs: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15.
INSTALLATION – ESSENTIAL REQUIREMENTS 2.1 Power •• The appliance must be installed so the power plug is accessible. •• To ensure that the appliance is not accidentally switched off, connect your refrigerated drawer to its own power point. Do not plug in any other appliance at this power point or use extension cords, or double adapters, as the combined weight of both power cords can pull the double adapter from a wall outlet socket.
INSTALLATION – ESSENTIAL REQUIREMENTS •• See anti- tip bracket installations (page 9 and 10). 2.5 Before Placing Food in the Fresh Food Compartments •• Remove all packaging. Ensure that all transit tape is removed from the refrigerated drawer. •• Clean the inside of the appliance with warm water and a little liquid detergent to remove manufacturing and transportation dust. •• Allow the refrigerated drawer to run empty for 2 - 3 hours to allow each compartment to cool to the appropriate temperature.
INSTALLATION HOW TO INSTALL YOUR OUTDOOR REFRIGERATED DRAWER 2.6 Electrical connection Check serial plate for correct power supply. Use only electrical power supply as specified on your appliance serial nameplate. Do not use an extension cord! WARNING! Do not splash or spray water from a hose onto the refrigerated drawer! Doing so may cause an electrical shock, which may result in severe injury or death. 2.
INSTALLATION HOW TO INSTALL YOUR OUTDOOR REFRIGERATED DRAWER 2.9 Select Location The proper location will ensure peak performance of your appliance. Choose a location where the unit will be out of direct sunlight, away from heat sources and moisture. Units with fan cooled condensers can be built in. Unit should be operated in a properly ventilated area with ambient temperatures above 40 degrees and below 100 degrees Fahrenheit.
INSTALLATION ANTI-TIP INSTALLATION INSTRUCTIONS A free standing refrigerated drawer must have an anti-tip device installed as per these instructions. If the drawer is removed from its location for any reason, make sure that the device is properly engaged when you push the drawer back into the original location. If device is not properly engaged, there is a risk of the drawer tipping over, causing property or personal injury if you or a child stand, sit, or lean on an open drawer. WARNING 2.
INSTALLATION ANTI-TIP INSTALLATION INSTRUCTIONS 2.14 WALL MOUNT To Drawer Refrigerator 1. Remove the bracket from its original shipping position on the back of the unit (Fig. 2.9 and 2.10). 2. Reattach the bracket to the back of the unit using the existing screws from the unit’s back panel (Fig 2.11). 3. Push the unit against the wall so the bracket is flush with the wall adjacent to the back panel. 4.
Sealed System 3.1 Introduction The following should always be practiced with any sealed system that has been opened. ONLY OPEN THE SEALED SYSTEM AS A LAST RESORT AND AS A FINAL DIAGNOSIS. Always check other areas of operation such as wiring, airflow, thermostat, etc. before opening up the sealed system. Many times these areas can resemble sealed system problems. The diagnosis of a sealed system can be determined by accurate pressure and temperature measurements.
Sealed System 3.6 Evaporator Frost Pattern Checking the evaporator frost pattern is a good way to quickly diagnose simple sealed system problems. This can be done by allowing the unit to run (at least 10 minutes) with the door open for at least 5 minutes. This will help speed up the normal frosting of the evaporator plate. By visually inspecting the evaporator and feeling it with your hands, you will see and feel frost across the plate.
Sealed System If low side pressure is below pressure in Table B, check for the following: 1. 2. 3. A system leak Capillary tube or evaporator is restricted Insufficient compressor (does not pump properly) If low side pressure is above pressure in Table B, check for the following: 1. 2. 3. 4. 5. Restricted air flow Dirty condenser coil Overcharged system Low side leak Inefficient compressor 3.8 Re-charging Re-charging of the unit should be done only after diagnosing and repairing the system.
Sealed System COMPONENTS 4.1 Gaining Access to Mechanical Baseplate The mechanical baseplate is located in the rear of the unit. Most major mechanical and electrical components on the unit mount directly to the baseplate. This creates easy access for servicing of the sealed system and mechanical/electrical components. To gain access to the mechanical baseplate, remove the screws that hold the lower shroud in place and then remove the shroud (see Figure 4.1).
Sealed System 4.2 Compressor The compressor is the heart of the refrigeration system (see Figure 4.4). However, it relies on other parts of the system to function. Make certain that the other parts of the system are functioning correctly before determining that the compressor is faulty. Compressor Drier Figure 4.4 The following should be observed before concluding the compressor is faulty: 1. 2. 3.
Sealed System Installing the Compressor: 1. 2. 3. 4. 5. 6. 7. 8. 9. Install the four rubber grommets in the bottom of the new compressor and install the three sleeves where the carriage bolts will be located. Mount the new compressor and install the three washers and lock nuts and tighten to 45 in-lbs. DO NOT REMOVE THE RUBBER PLUGS AT THE TUBE STUBS ON THE COMPRESSOR AT THIS TIME. Install and braze new drier assembly to condenser. Then install and braze capillary tube to drier.
Sealed System 4.3 Condenser The condenser is a steel tube serpentine with copper alloy fins that removes heat from hot, high pressure vapor from the compressor (see Figure 4.8). The most common trouble is lack of airflow from either a restricted intake or exhaust opening in the front of the unit. Lint, dust, hair, and dirt build-up needs to be removed from the condenser periodically to allow the unit to perform properly. Figure 4.
Sealed System 4.4 Evaporator The evaporator uses evaporating refrigerant to remove heat from the inside of the unit ultimately making the interior cold. The shape and size of the evaporator may vary among the models covered by this service manual but the fundamentals are the same (see Figures 4.9). The RF24D uses a vertical right angle evaporator plate. It is normal for the evaporator to frost up during its run cycle.
System COMPONENTS 5.1 Condenser Fan The condenser fan is used to force air over the condenser coil. The fan will cycle on and off with the compressor which means that when the compressor is running so is the fan and when the compressor is not running neither is the fan (see Figure 5.1). Figure 5.1 To check the condenser fan: • • • • Make sure the motor shaft turns freely. This can be done by rotating the fan blade by hand and observing any excessive resistance. Check for resistance between terminals.
System COMPONENTS 5.2 Thermistors The refrigerated drawers utilize two thermistors: one is known as the evaporator thermistor and the other as the display thermistor. Each thermistor has a different function for input to the electronic control. Evaporator thermistor: The evaporator thermistor turns the unit on and off. It is secured to the evaporator or cabinet liner.
System COMPONENTS Removing the Evaporator Thermistor: 1. 2. 3. 4. 5. Disconnect power. Remove back panel and lower shroud. Disconnect the evaporator thermistor connector at the electronic controller. Remove evaporator thermistor by removing the screw securing it. Feed the thermistor wire out through the opening in the back of the unit. Installing the Evaporator Thermistor: Reverse the removal procedure for installation (see above).
User Interface Panel and Control System Refrigeration Monitor ON SET WARMER COOLER OFF FAULT F/C Power Failure +/ Temp Alarms Off Press ON/OFF to Reset PRESS and HOLD Figure 6.1 6.1 Introduction DCS’s control system refrigeration monitor governs the intuitive user interface panel. The control system informs you if the unit is not working properly through both visual and audible alerts. The LED display panel displays a steady green light when the control system is enabled. See Figures 6.
User Interface Panel and Control System Refrigeration Monitor 6.6 Holiday Mode The unit is equipped with a Holiday Mode of operation. When Holiday Mode is enabled, the displays, audible alarms, lights, and all options are disabled. The user interface buttons remain enabled with audible key tones disabled. Enabling Holiday Mode: Press and hold the “SET” button while pressing the “F/C” button four (4) times within seven (7) seconds.
User Interface Panel and Control SysteM Refrigeration Monitor 6.9 Show Room Mode Show Room Mode is used mainly by salespersons and distributors. When the unit is in Show Room Mode, it will operate as if functioning normally; however, the internal components will not run. Enabling Show Room Mode: To enable Show Room Mode, press and hold the “ON/OFF” button while performing a “Power On Reset” (POR), i.e. - disconnect and reconnect the power supply to the unit.
User Interface Panel and Control System Refrigeration Monitor After entering Service Mode, the first number that you will see indicates the software model number for the particular unit you are servicing. Model Description Software Model Number RF242D 24 inch Refrigerated Drawers 17 The second number you will see indicates the software version release. For example, if you see 39 on the display panel it indicates software version 3.9 and 41 indicates software version 4.1.
Interior Components 7.1 Lights For Refrigerated Drawers: The refrigerated drawers are equipped with two lights: one on the inside top of the drawer and one in the divider. Replacing the Top Light: 1. 2. 3. 4. 5. 6. Loosen the screws to the control housing. You do not need to remove them. Pull the control housing forward out of the screw slots. Look inside the control housing and remove the wire connector to the light. Press down and out on the LED bulb and lens.
Interior Components 7.5 Heater Strip The refrigerated drawers ship from the factory with the heater strip unplugged. If the drawers develop condensation on the divider, the heater option can be turned on to stop this from happening. Turning on the Heater Strip: 1. 2. 3. Remove the front grill. Connect the red and orange wire connectors (in the lower right hand side) together. Reinstall the front grill. Turning off the Heater Strip: Reverse the turn on procedure above to turn off the heater strip. 7.
WIRING DIAGRAM 28 23
Ordering Parts The following information will need to be given when inquiring about service parts: 1. 2. 3. 4. Model and serial number located on the serial nameplate (see Section 1.2, Serial Nameplate) Color of the model Metal or plastic grill Type of door To order parts, call or write: Fisher & Paykel Appliances, Inc. Attention: DCS Customer Care 5900 Skylab Road Huntington Beach, CA 92647 phone: 888.936.7872 www.dcsappliances.
Troubleshooting Guide PROBLEM POSSIBLE CAUSE 1. The unit is unplugged. Unit does not operate. CORRECTION Plug in the unit. 2. Did not hold the “ON/OFF” button Press and hold the “ON/OFF” button long enough on the display panel. for five seconds. 1. Did not press the “F/C” button on the display panel. Press the “F/C” button to toggle between F and C. 1. Did not press and hold the “SET” button on the display panel while pressing either the “WARMER” or “COOLER” button.
Troubleshooting Guide PROBLEM POSSIBLE CAUSE CORRECTION 1. Compressor wires disconnected. Check wiring diagram on back of unit and reconnect wires. 2. Faulty compressor. Replace compressor. 3. Faulty control. Replace control. 4. Faulty compressor overload. Replace overload. 5. Faulty compressor PTC starter. Replace PTC starter. E2 error code on display panel and audible alarm sounding six times every minute (Condenser fan motor fault high/low amps). 1. Condenser fan motor wires disconnected.
WARRANTY Limited Warranty When you purchase any new DCS Refrigeration Product, you automatically receive a One Year Limited Warranty covering parts and labor for servicing within the 48 mainland United States, Hawaii, Washington, D.C. and Canada. In Alaska the Limited Warranty is the same except that you must pay to ship the Product to the service shop or for the service technician’s travel to your home.
WARRANTY 6. Unauthorized modifications of the Product. 7. Noise and vibration that is considered normal e.g. drain sounds, regeneration noises and user warning beeps. 8. Correcting damage caused by pests e.g. rats, cockroaches etc. 9. Used in commercial applications. B. Defects caused by factors other than: 1. Normal domestic use or 2. Use in accordance with the Product’s Use and Care Guide. C. Defects to the Product caused by accident, neglect, misuses, fire, flood or Act of God. D.
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Fisher & Paykel Appliances, Inc. 5900 Skylab Road, Huntington Beach, CA 92647 Customer Care: 888.936.7872 Fax: 714.372.7003 www.dcsappliances.com As product improvement is an ongoing process, we reserve the right to change specifications or design without notice. P/N 243199 Rev.
