Viking VCWB300 User Manual 2

SERVICE NOTEBOOK

VCWB300 PROFESSONAL MODEL

BUILT-IN FULL HEIGHT WINE COOLER

Table of Contents

Technical Information--------------------------------------------------------------------- 4 Sealed System------------------------------------------------------------------------------ 5 Control Panel Assembly------------------------------------------------------------------- 6

Mode of Operation------------------------------------------------------------------------ 6 Temperature Readout and Setting----------------------------------------------- 7

Display Off------------------------------------------------------------------------- 7 Compressor Protection------------------------------------------------------------ 7 Fan Operation---------------------------------------------------------------------- 7 Alarm Security--------------------------------------------------------------------- 8 Holiday Mode---------------------------------------------------------------------- 8 Service Mode----------------------------------------------------------------------- 8 Display Interface Board----------------------------------------------------------- 8 Glass Mullion Shelf---------------------------------------------------------------- 9

Electronic Function Description-------------------------------------------------------- 10 Display Panel Keyboard---------------------------------------------------------- 10

Power Disconnect Switch--------------------------------------------------------- 10 Showroom Switch----------------------------------------------------------------- 10

Display Panel Operation----------------------------------------------------------------- 11 Keyboard Entry Tone------------------------------------------------------------- 11

Zone Pad---------------------------------------------------------------------------- 11 Lower Temp Pad------------------------------------------------------------------- 11 Higher Temp Pad------------------------------------------------------------------ 11 Lights-------------------------------------------------------------------------------- 11 Display Pad------------------------------------------------------------------------- 12 Alarm-------------------------------------------------------------------------------- 12 Wine Cooler Leveling---------------------------------------------------------------------- 12 Door Stop Adjustment---------------------------------------------------------------------- 13 Hinge Adjustment--------------------------------------------------------------------------- 13

Diagnostic Check Points------------------------------------------------------------------ 14 E1 – Display Board Output------------------------------------------------------- 14

E2 – Touch Switch Inputs-------------------------------------------------------- 14 E3 – Outputs and Line Voltage Inputs------------------------------------------ 14 E4 – Thermistor Inputs------------------------------------------------------------ 15 Compressor Relay------------------------------------------------------------------ 15 Alarm Wires------------------------------------------------------------------------- 15 Display Board----------------------------------------------------------------------- 15 Compressor (General Information)-------------------------------------------------------- 16 Thermister Resistance Reading------------------------------------------------------------- 17 Solenoid Valve / Evaporator Fan----------------------------------------------------------- 18 Wiring Schematic---------------------------------------------------------------------------- 19 Wiring Diagram------------------------------------------------------------------------------ 20

VCWB300

DDWB300 DESIGNER – DFWB300 FULL OVERLAY

BUILT-IN FULL HEIGHT WINE COOLER

VIKING TECHNICAL INFORMATION

DUE TO POSSIBLITY OF PERSONAL INJURY OR PROPERTY DAMAGE, ALWAYS CONTACT AN AUTHORIZED TECHNICIAN FOR SERVICING OR REPAIR OF THIS WINE COOLER.

The Viking Built-in Full Height 30” W. wine cooler (VCWB series) is designed to meet the needs of the upscale wine connoisseur while also meeting Viking Range Corporation’s stringent product standards. The product is 30” (76.2cm) wide and 84” (213.4cm) tall. The product has adjustable leveling legs to allow the height to be adjusted from 82 1/2” TO 84 3/4” (209.6 to2120.7cm). The sealed system is located on the top of the product.

The product has commercial type construction and is available with various features and color options.

General Specifications

Model VCWB300#

Internal Volume Capacity 150 Bottles Electrical Requirements 115VAC, 60 HZ and 15 Amps Maximum Amp Usage 2.0 Amps Refrigerant Type HFC – 134a Refrigerant Charge See Rating Label Overall Width 30 inches (76.2cm) Overall Depth without Handle Includes Door Extrusions 24” (Designer DDWB300) 24 ½” (Full Overlay DFWB300) 24 ¾” to Front of Grille Overall Height (Rollers to Top of Air Grille) 82 ½” to 83 ¾”

SEALED SYSTEM

The sealed system consists of the following components (listed in order of refrigerant flow):

1 condenser coil 1 dryer assembly 3 solenoid valves 3 heat exchangers 3 evaporators 1 compressor 1 discharge tube 1 drain pan heater 1 pre-condenser loop

Refrigerant Type – HFC 134a

Refrigerant Charge – 7.3 oz.

Evaporator Temperature Range 14°F to - 31°F

Expanding Device – Cap tube

Compressor Cooling: LBP 32° C Ambient temp 98 to 140V LBP 43° C Ambient temp 98 to 140V

Maximum Condensing Pressures: Operating 230 psig Peak 293 psig

Electrical Data: Normal Voltage 115VAC / 60Hz Start Winding Resistance – 21.20Ω (at 77°F) ± 8%.

Run Winding Resistance – 7.90Ω (at 77°F) ± 8%. Locked Rotor Amps (60Hz) – 9.80

Amps.

Full Load Amps (60Hz) – 1.20 Amps.

CONTROL PANEL ASSEMBLY

The wine cooler is equipped with a control panel conveniently located in the top front of the top compartment of the wine cooler. From this point the user can operate all functions of the wine cooler’s temperature management and various electronic features. The control panel housing is constructed of injected molded plastic. A glass keyboard is fastened to the housing by means of snap clips that are incorporated into the molded housing. The keyboard is then secured in place with an adhesive. The keypad utilizes a special technology that senses mass. When the user places a finger on the glass surface at designated “button” locations the control recognizes this and converts this to an electronic signal. This signal is then processed by the wine cooler’s control that promptly results in a change of temperature settings or some of the other wine cooler electronic features.

On the underside of the control panel a means for attaching two light bulbs is molded in place. The light tubes are installed into a separate lamp holder, which is then attached to the control panel by four “molded in” clips and four screws.

Mode of operation: Microprocessor based 3 – channel temperature / logic control.

Normal cooling operation: Control will independently read and regulate the average

temperatures of each chamber to its corresponding set point as shown on the vacuum florescent display (“VFD”). When cooling is called for, the zone valve will energize and the compressor will energize 60 seconds later. Only one zone valve / fan can be energized at a time. Chamber 1 will take precedence over chamber 2, which will take precedence over chamber 3 in the event that more than one chamber is calling for cooling at the same time. Each chamber will run for a maximum of 10 minutes after which it will switch to the next chamber requiring cooling. When a chamber reaches 1º below set temperature the zone valve is de-energized. The control will energize the compressor

and appropriate zone valve based upon the temperature at the evaporator thermistor and will turn off the zone valve based upon the temperature at the chamber thermistor.

Temperature readout and setting: Pressing the zone button will change which chamber is selected for adjustments. The selected chamber will have a bar displayed over the temperature reading on the VFD. Pressing the higher or lower buttons will raise or lower the set point of the selected chamber in one degree F increments. Every time any set point is changed a “set time” delay will start. When the “set time” delay is completed without another change in the temperature the currently displayed number will become the new set point. The new set point will be stored in non-volatile memory. The unit will begin controlling the particular chamber to the new set point, and the actual chamber temperature will be displayed. Temperature can be displayed in either Degrees F (default) or in Degrees C. It can be changed from one to the other by pressing and holding both the display on/off and the display alarm buttons simultaneously for 5 seconds. The display will show “F” or “C” appropriately. This setting will be stored in non-volatile memory and will be saved during period of power loss.

Display off: To turn the display off, momentarily press the display. The display will turn off as soon as the button is released.

To turn the display on, momentarily press the display button. The display will turn on as soon as the button is released.

Compressor protection: At any time the compressor needs to start, including that power up the appropriate zone valve will energize for 60 seconds before the compressor is allowed to start. This is intended to allow to discharge any pressures in the system so that the compressor will not start under heavy load. Any time that all chambers reach set temperatures(s), the compressor will continue to run for an additional 30 seconds. This is intended to reduce compressor start / stop cycles as the various chambers call for cooling.

Fan operation: The evaporator fans, if running will shut off whenever the door switch opens and turns back on when the door switch closes. When operating in Holiday Mode the Fan(s) will not turn off, if running, when the door switch opens.

Chamber lighting: The light inside the chambers can be always on, or only on when the door switch is open. Pressing the lights button on the front panel toggles this setting. Also see holiday mode.

Alarm security: Alarm operation can be toggled on or off by pressing the alarm front panel button for 2 seconds. When the temperature inside any chamber is higher than the set temperature by more than 5 degrees F for longer than the “2 hours” delay, the display will flash on and off and an audible signal will sound. When the alarm mode is active, an enunciator will appear in the display. Upon initial power-up, the alarm will be disabled for a start-up delay to allow for the unit to reach temperature. The alarm can be disabled by pressing the alarm off button. A door alarm is provided that will sound if the door switch is open for longer than the door alarm delay. The alarm will shut off upon reclosing the door and the delay time will be reset. Temperature alarm operation will be inhibited in show room mode. Home security contacts will transfer during an alarm condition. When operating in Holiday Mode, the high temperature alarm and door alarms are disabled.

Showroom mode: This mode, selected by closing the showroom switch is intended to simulate normal operation in all ways except the cooling and temperature alarm functions. Closure of this switch will over-ride normal cooling. Temperature displayed for the chambers will be the last temperatures stored in memory, or the factory defaults setting if they have not been changed. Lights and functions will occur as in normal cooling operation described above.

Holiday mode (Sabbath mode): Pressing and holding the display button continuously for 10 seconds accesses this mode. (Note: The Display must be “on” before entering Holiday Mode.) To cancel Holiday Mode, press and hold the display button continuously for 10 seconds. When Holiday Mode is selected, a random time delay of 15 to 25 seconds will be applied to the compressor relay start and stop. The chamber lights relay will remain de-energized. The display will not be illuminated. Audible sound (beep) from the control will be disabled. Fan outputs will not be affected by opening or closing of the door switch. All front panel buttons will be inoperative except a 10 second press of the display button causing the control to exit Holiday Mode. All other functions will continue as in normal cooling described above. The Alarm sounds is disabled and the home security relay will not transfer.

Service mode: This mode, selected by pressing and holding zone, higher temp and lights buttons simultaneously for 5 seconds is intended for manual operation of the compressor, valves and fans for purposed of servicing / diagnosing and repair. When put in to this mode, valve 1 will energize for 10 seconds to relieve any pressures in the system. The compressor will then energize and continue to run continuously while in service mode. Pressing the zone button will change which chamber is active as indicated on the display. The solenoid valve and evaporator fan will energize in the chamber that is active. To leave the service mode, press and hold the zone higher temperature and lights buttons simultaneously for 5 seconds, normal operation will then resume.

Charge mode: Pressing the lower temp button while in service mode selects charge mode. In this mode all zone valves are open and all other functions are “off”. This is to vacuum, evacuate and charge the sealed system. To exit charge mode the power must be removed, turn “off” the power switch or unplug the product.

Display interface board: Mode of operation: Interface board for Vacuum fluorescent display module.

During normal operation, temperatures in all three chambers are displayed and the red lens is blinking approximately once per second when the RS-232 signal is being received. A “bar” symbol is displayed over the “active” temperature reading. The “adjusted” temperature will be displayed as blinking, approximately .5 seconds on .5 seconds off.

When the “alarm mode enabled” signal is being received the “alarm” symbol will be displayed. If the “alarm” signal is being received, the “alarm” word will be displayed for approximately 4 seconds and the chamber temperature will be displayed for the next 4 seconds. The piezoelectric sounder will turn on for 100 milliseconds, approximately every 8 seconds. The display will be on, even if the “display blank” command is being received

GLASS MULLION SHELF

Each compartment is separated be a fixed glass shelf (“Mullion” – two per wine cooler). These glass shelves are uniquely designed such that they act not only as an insulated divider wall, but also provides a means of draining the condensate water from the top and middle compartments and as a means of attaching and supporting the light tubes for the middle compartment.

The bottom trim of the shelf has holes for mounting the assembly to the cabinet of the wine cooler. This is accomplished through the use of “L” brackets that are attached to the liner walls of the cabinet and then attached to the shelf at an angle of 90° with respect to the walls of the wine cooler. Two of these “L” brackets are used: one on each side.

The condensate drain nozzle is tapered so that a drain tube can be interference free onto the outer diameter of the nozzle. The drain tube directs condensate water to a desired location. For the top compartment, the tube directs water to the middle compartments mullion drain sump. For the middle compartment, the drain tube directs water to the sump in the liner bottom.

Each mullion shelf has two “flanges” and two screw bosses located at the front bottom of the device. The two light tubes for the middle compartment are snapped into the flanges at each end and are then secured in place at each end with a screw and a light tube clamp. The wires for the light tubes are then routed along the left side of the shelf and secured and covered with an extruded wire channel.

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