Vendo HFD000002 Operators Manual

SANDENVENDO AMERICA INC

HFDC00001

HOT FOOD DISPLAY

Technical Servi c e Ma nu al

MODELS HFD000001, 2, 3, 4, 5

HFDC00001

Table of Contents

Commitment to Safety…….….…..….…2

Safety Warnings…….……..……............3

Parts..…….…………………………….....4

Operation……………………..……….....6

Troubleshooting……………..…….…...9

Schematic…………………..…..….……10

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SANDENVENDO AMERICA INC

A COMMITMENT TO SAFETY

The SandenVendo is committed to safety in every aspect of our product design.
SandenVendo is committed to alerting every user to the possible dangers involved in
improper handling or maintenance of our equipment. The servicing of any electrical or
mechanical device involves potential hazards, both to those servicing the equipment
and to users of the equipment. These hazards can arise because of improper
maintenance techniques. The purpose of this manual is to alert everyone servicing
SandenVendo equipment of potentially hazardous areas, and to provide basic safety
guidelines for proper mai nte nance.

This manual contains various warnings that should be carefully read to minimize the risk
of personal injury to service personnel. This manual also contains service information
to insure that proper methods are followed to avoid damaging the Hot Food Display
(HFD) or making it unsafe. It is also important to understand these warnings are not
exhaustive. SandenVendo could not possibly know, evaluate, or advise of all of the
conceivable ways in which service might be done, nor can SandenVendo predict all of
the possible hazardous results. The safety precautions outlined in this manual provide
the basis for an effective safety program. Use these precautions, along with the service
manual, when installing or servicing the HFD.

We strongly recommend a similar commitment to safety by every servicing organization.
Only properly trained personnel should have access to the interior of the machine. This
will minimize the potential hazards that are inherent in electrical and mechanical
devices. SandenVendo has no control over the machine once it leaves the premises. It
is the owner or lessor’s responsibility to maintain the Hot Food Display in a safe
condition. Follow all Safety Rules and Safety Warnings in this manual. If you have any
questions, please contact the Technical Services Department of SandenVendo.

SAFETY RULES

• Read the Safety Warnings before ins tal lation or service.

• Test for proper grounding before installing to reduce the risk of electrical shock and

fire.

• Turn off power switch and disconnect power cord from wall outlet before servicing.

• Use only fully-trained service technicians f or Power-On servicing.

• Use adequate equipment when moving the HFD.

• Use only authorized replacement parts.

• Be aware of inherent dangers in rocking or tipping the HFD.

• Always turn power off before plugging or unplugging HFD to wall outlet.

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SANDENVENDO AMERICA INC

SAFETY WARNINGS

The HFD is for indoor use only. Do not use near water or in condensing humidity.
To prevent electric shock or fire, do not kink, pull, or pinch the power cord, and insure no

equipment is resting on the power cord. If the power cord is damaged, unplug and replace.
Do not connect with other plugs. Do not use an extension cord.
When unplugging, first turn off the power switch. Then pull the plug at the end of the power

cord, not by pulling the power cord, since the cord can be damaged, overheat, and cause a fire.
Do not spray water on the HFD. It may cause an electric shock or fire.
Do not touch the power plug, switches, or other electrical parts with wet hands. It can cause an

electric shock.
Periodically check that the plug is pushed in all the way.
To prevent injuries due to falling objects, liquid spills, electric shock or fire, do not place heavy

objects or liquid-filled objects on top of the HFD.
To prevent electric shock or fire, do not use volatile or flammable products in or near the HFD.

When moving the HFD: turn the HFD off, unplug, and allow the unit to cool. To prevent glass
breakage and injury, do not push on the glass. Also, use proper equipment and lifting
techniques. Insure the product doesn’t tip while it is being moved.

If a lamp or any glass cracks or breaks, turn off the power and discard all food in the HFD.
Replace lamp and / or glass. Remove all glass fragments. Carefully inspect all surfaces,
corners, and gaskets to insure all glass fragments have been removed before returning HFD to
service.

Keep HFD out of direct sunlight and away from heat sources.
Do not hang from the door – this may cause injury or electric shock.
Turn off and unplug HFD before servicing, and let HFD cool before cleaning or servicing.
Use proper tools while servicing.
Use only authorized replacement parts.
The HFD temperatures are factory set to meet NSF food safety requirements. Changing

temperature settings may adversely impact food safety.
The lamps are an integral part of the food heating system. If a lamp is not illuminated, the

temperatures may not be maintained for food safety.

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Shelf edge gasket
Controller Membrane Pad

Lamp
Socket

Lamp

Rear door

Bottom

Gasket

Bottom

Heater

Gasket

Controller

Breaker
Power cord

Front door gaskets

Shelf assemblies

Item Part # Description

22 1180812 Fan, HFD (HFD 5 only)

1 2 3 1 6 7 10 9 8

11

12

15

16 4 17

18

19

14

13

Shelf Assembly Connector Colors

10 Blue Shelf Asy, Upper Right

20

21

22

See schematic for wiring harness part numbers

Plate
Front

PARTS

SANDENVENDO AMERICA INC

1 1158489 Gasket, Door, Side
2 1158477 Gasket, Door, Upper
3 1158491 Gasket, Door, Lower
4 1153225 Controller
5 1187519 Heater Kit (not shown)
6 1173478 Shelf Assembly, Upper Left
7 1173508 Shelf Assembly, Middle Left
8 1173455 Shelf Assembly, Bottom
9 1173522 Shelf Assembly, Middle Right
10 1173492 Shelf Assembly, Upper Right
11 1158685 Gasket A
12 1158696 Gasket B
13 1159513 Lamp Socket
14 1159525 Xenon Heating Lamp
15 1162225 Power Cord Plug
16 1161921 Circuit Breaker, 15 Amp
17 1194238 Rear Door, HFD
18 1158673 Slide Rail, Lower (Horizont al)
19 1158969 Slide Rail, Side ( Ver t ic a l)

Heater
Plate
Side

20 1153213 Controller Membrane Pad
21 1159604 Shelf Edge Gasket

(same each shelf)

switch

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and slides

Item Connector Color Description

6 White Shelf Asy, Upper Left
7 Black Shelf Asy, Middle Left
8 Red (left) Green (right) Shelf Asy, Bottom Shelf
9 Yellow Shelf Asy, Middle Right

(Vertical slide rail
same each side)

SANDENVENDO AMERICA INC

Combo Serve Front Door & Shelf Parts

9 1201311 Shelf Guard (4x)

1 2 6

5 7 8 9 3

4

Combo Serve HFD

HFDC00001

Item Part # Description

1 1200392 Left Door Assembly
2 1200392-1 Right Door Assembly
3 1185603-1 Frame Gasket (Horizontal, 2x)
4 1185603-2 Frame Gasket (Vertical, 2x)
5 1187405 Damper (one each side)
6 1202273 Extension Spring (one each side)
7 1199716 Rack, Top/Middle Shelf (not shown, 4x)
8 1199728 Rack, Bottom Shelf (not shown, 2x)

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SANDENVENDO AMERICA INC

LED Display

Upper Left

Middle Left Shelf Timers

Lower Left Shelf Timers

Upper Right

Shelf Timers

Lower Right Shelf Timers

Power Button

Time Button

OPERATION

Shelf Timers

Display and Keypad

Shelf Timers

SD card slot

Middle Right

Timer Setting and Operati on

Note: to help prevent keypad damage, push keypad buttons only with finger or thumb; do not

use fingernail, utensil, tool, pen, or other object.

Circulation fans may be turned on or off by the switch at the top rear of the cabinet.
Normal Operation

Pressing the power button turns the HFD on or off. When controller is off, all lamps, heaters,

displays and indicators are off.

Timers
When a timer is off, pressing the timer button once sets the countdown timer to the value

preprogrammed into the controller.

Pressing the timer button again within three seconds activates the timer adjustment mode and

sets the timer to one hour.
Each successive press (within three seconds) adds one hour to the time, up to four hours.
At four hours, the next button press cycles the timer back to one hour again.
Once the timer is activated, the LED next to the shelf timer button becomes green.
The display then reverts to HFD internal ambient temperature display.
While a timer is on, pressing a timer button once displays the remaining time for 4 seconds,

then shelf temperature for 4 seconds, and then the display reverts to the internal ambient

temperature display.
At 14 minutes remaining time, the LED blinks yellow.
When no time remains, the LED blinks red, plus a brief audible alarm sounds.
Pressing the timer button next to the blinking red LED clears the alarm and restarts the timer.
Holding down the Time button, then pressing a timer key, turns off the timer.

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SANDENVENDO AMERICA INC

Converting Temperature from °F to °C (or °C to °F)

1. Controller must be off.

2. While holding down the TIME button, press the On/Off button. Software revision will be
displayed.

3. Press and release the TIME button once to change from °F to ° C (or °C to °F)

4. Wait 5 seconds.

5. Press any timer key once to verify the change.

5. Press the On/Off button to turn the unit on.

6. Verify the display indicates the desired temperature units (°F or °C).

Front Door

If the front door is opened, the controller turns off only the lights. The display reads "OPEn".

After closing the front door, the lights turn on, and the display reverts to internal ambient

temperature.

Heater Temperature Adjustment
With controller power off, hold down the Time button, then press & release the Power button.
The left timer button for a shelf decreases the temperature setpoint.
The right timer button for a shelf increases the temperature setpoint.
To exit heater temperature adjustment mode, press the power button.

Error Codes
E30 I nside ambient thermistor error (open circuit)
E60 Upper left shelf thermistor error (open circuit) (E61)
E61 Middle left shelf thermistor error (open circuit) (E64)
E62 Lower left shelf thermistor error (open circuit) (E67)
E63 Upper r ight shelf thermistor error (open circuit) (E60)
E64 Middle right shelf thermistor error (open circuit) (E63)
E65 Lower right shelf thermistor error (open circuit) (E66)
E90 Unable to read SD card
(Error codes in italics reflect codes on some controllers)

Clear error codes by pressing any key (except for E90 error).
Clearing an error code turns that shelf's heater off.
Clear the E90 error by unplugging the HFD, plugging it in again, and then pressing the power

button.

SD Card Programming
The SD card must be formatted in FAT32, preferably by Windows XP instead of Vista. It must

contain a single file, and the file name does not matter. 512MB or 1GB cards only. The
contents must be ASCII text as follows, in exactly the format shown:

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