Alto Shaam 1000-MR1 Service Manual

#8410/11 • 3/2001

PRINTED IN U.S .A .

OPERATION and CARE MANUAL

COOK/HOLD/SERVE SYSTEMS

W164 N9221 Water Street ●P.O. Box 450 ●Menomonee Falls, Wisconsin 53052-0450 U.S.A.

PHONE: [phone] FAX: [phone] • 800.329.8744 U.S.A. ONLY WEBSITE:

800.558.8744

U.S.A./CANADA 262.251.1907 INTERNATIONAL www.alto-shaam.com

Mobile Refrigerated Cart

Models: 1000-MR1

1000-MR2

®

1.0 INTRODUCTION

This technical manual provides information
on the installation, operation, maintenance,
and inspection of this unit. A complete parts
breakdown is provided.

1.1 EQUIPMENT DESCRIPTION

The unit consists of the following:

Storage Compartment: The insulated food
storage compartment is clear storage area.
Included in this area are the adjustable
shelves and cooling coil.

Doors: Access to the storage compartment is
through a hinged-mounted insulated door.

Condensing Unit Compartment: This area
contains the condensing unit along with the
necessary controls.

Evaporator Coil: The evaporator coil is
located in the storage compartment and is
responsible for distributing the cold air
associated with the refrigeration system.

Cabinet: The cabinet is the enclosure in
which all of the above items are housed.

1.2 EQUIPMENT SUPPLIED

The unit is shipped from the factory fully
assembled except the adjustable shelving that
will require positioning on the side racks.
The complete assembly is palletized and
crated to reduce the possibility of damage in
shipping and storage.

1.3 LEADING PARTICULARS

Refrigerant: 134a

Electrical:

1000-MR1 1000-MR2

115VAC 115VAC
60 Hz, 1ø 60 Hz, 1ø

8.7 Amps 10.8 Amps

220-240VAC 220-240VA
50 Hz, 1ø 50 Hz, 1ø

4.4 Amps 6.3 Amps

Weight:

Net 410 lb (186 kg) 800 lb (363kg)
Shipping 671 lb (304kg) 1210 lb (549kg)

2.0 FUNCTIONAL DESCRIPTION

This unit is a self-contained, automatically
controlled, continuous duty perishable food
storage system. It is designed with the intent
and purpose of storing cold food items. The
operating temperature is automatically
monitored by controls that are factory-set to
maintain a predetermined, adequate
condition.

The unit consists of two basic compartment
assemblies:

a.

Condensing Unit Compartment which
includes the condensing unit, the electrical
control panel with power switch and
terminal box, and a heated condensation
evaporator.

b. Storage Compartment which consists of the

insulated clear storage area for perishable
food items requiring a temperature range
of 37° to 40°F (3° to 4°C). The clear
storage area includes adjustable shelving.

2.1 SYSTEM OPERATION

The primary focus for the design of the
refrigerated cabinet is for the safe storage of
food products which require refrigeration.
Considerable engineering attention was
placed on the qualities of function and
serviceability.

The refrigeration system is a closed loop
system. Unless the system develops a leak,
adding additional refrigerant is not necessary.

3.0 START-UP PROCEDURE

The refrigeration system is completely factory­assembled, precharged and ready for operation.
The control has been set to display temperature
in degrees Fahrenheit or degrees Celsius as
specified on the original order.

To energize the system, it is only necessary to
locate the power supply cord and connect it to a
proper electrical supply source. Once the
supply cord has been connected to a power
source, the unit can be started by switching the
power control switch to the “

ON” position.

3.1 SHUT-DOWN PROCEDURE

To shut-down, place the power control in the
"OFF" position and open the door to allow the
cabinet interior temperature to equalize with
the room temperature.

Use a mild detergent diluted in warm water to
wash the interior and exterior surfaces of the
cabinet.

Operation and Care Manual #8410/11 • 1

Alto-Shaam Mobile Refrigerated Carts

NEMA 5-15P

15A, 125V Plug

NEMA 5-15P

15A, 125V Plug

NEMA 6-15P

15A, 250V Plug

NEMA 6-15P

15A, 250V Plug

PROCEDURES

NAME

Thermostat

Suction Valve

Discharge Valve

Power Control Switch

(

ON/OFF)

LCD Display

TYPE

Contact Points

Service Valve

Service Valve

Contact Points

FUNCTION

Cycles the refrigeration

system (automatic)

Isolate suction at the

compressor.

Isolate discharge at

the receiver.

Terminates power to

the unit.

Indicates continuous

cabinet temperature.

CONTROLS AND INDICATORS

OPERATION

Activate system by inserting

electrical service cord into electrical

supply source. Turn power switch to

the “ON” position.

With the door closed and the

storage area empty of product, wait

for a period of 1 hour.

Verify correct operating

temperature.

Begin stocking the containment

area when the proper operating

temperature has been reached.

RESULTS

The compressor should immediately

come on-line and the condenser fan

and evaporator fan activate.

The temperature in the storage area

will begin to decrease.

Cabinet will have reached the

proper operating temperature of

36°F ±3°F (2°C, ±1°C).

START-UP PROCEDURE

3.3 EXTENDED PERIOD OF INACTIVITY

This unit is designed for continued use at
automatically cycled intervals. In case of an
extended shut-down, the food storage
compartment must be cleaned and wiped dry to
minimize the potential of odor build-up during
shutdown.

Operation and Care Manual #8410/11 • 2

Ensure the

available

power
source

matches the

voltage

stamped on

unit

nameplate

.

OUTSIDE DIMENSIONS

1000-MR2

1000-MR1

PUSH
HANDLE
24-1/4" (617mm)
length

29-3/4" (749mm)

24-1/2" (622mm)

53" (1346mm)

C

2°

1-3/8" (35mm)

21-1/4"

(540mm)

29-1/2" (749mm)

WITH BUMPER

26-1/2" (673mm)

on l

POWER

off o

36-1/2" (927mm)

FULL
PERIMETER
BUMPER

1-3/8" (35mm)

39-1/4" (997mm)

56-5/8" (1438mm)

29-1/2" (749mm)

1-1/2" (35mm)

68" (1727mm)

27-1/2"

(699mm)

C

2°

WITH BUMPER

67-1/2" (1714mm)

64-1/2" (1638mm)

on l

POWER

off o

27-1/2"

(699mm)

54-1/4" (1378mm)

FULL
PERIMETER
BUMPER

68" (1727mm)

Operation and Care Manual #8410/11 • 3

4.0 OPERATING PROCEDURES

The purpose of this mobile refrigerator is to

maintain cold foods at proper serving

temperatures. The unit should be used for

the intended purpose only.

a. Adjust the position of the shelves to

accommodate required storage needs.

b. Switch the power to the “ON” position.

c. Prechill the cabinet to the full, factory

preset temperature of 36°F ±3°F (2°C).

d. Load the refrigerator with chilled foods

only. Before loading, use a food

thermometer to make certain all products

are at a temperature of 41°F (5°C)

maximum or less. Cover foods to reduce

moisture build-up on the inside wall of

the cabinet. To maintain the proper

refrigerated food temperature, open the

door only when necessary. The mobile

refrigerator door may be locked if

required.

5.0 CLEANING and MAINTENANCE

A thorough, periodic maintenance schedule is

required to ensure the longest and most

trouble free operation. Maintenance

schedules should be aimed at maximizing the

efficient use of maintenance personnel,

reducing down-time, and providing the

orderly acquisition of spare parts support.

5.1 CLEANING

Follow appropriate state

and local health (hygiene)

regulations regarding all

applicable cleaning and

sanitation requirements

for food service equipment.

DAILY:

Wipe all spills at once.

WEEKLY:

a. Remove the wire shelves and side-rack

shelf supports. Clean these items

separately using a mild, non-abrasive

detergent and soft cloth.

b. With a mild, non-abrasive detergent and

water, use a soft cloth to wipe the interior

liner of the storage compartment. Begin

at the top and work down. Wipe the

gasket surrounding the storage

compartment opening.

c. Using a mild detergent and water, wipe

the vinyl door gasket. Make certain to

wipe under the gasket to remove any

mildew or residue.

d. Wipe interior surfaces with a clean cloth

and sanitizing solution for use on metal

and vinyl food contact surfaces. This is

an important step to control the build-up

of unwanted mildew and mold on the

evaporator coil and fan.

e. Vacuum right, left and back panel grill

vents to maintain maximum air flow.

e. Wipe the exterior of the unit with a mild

detergent and water. Always wipe with

the grain of the stainless steel to prevent

scratching the finish.

OPERATION/CLEANING

SWITCH UNIT POWER “OFF” AND

DISCONNECT THE POWER SUPPLY

CORD BEFORE CLEANING,

SERVICING, OR PERFORMING

SCHEDULED MAINTENANCE.

SCHEDULED MAINTENANCE

6.0 MAINTENANCE

Remember to de-energize the unit by

switching the toggle switch located on the

control panel to the “OFF” position.

Disconnect the unit from the power source.

6.1 MONTHLY INSPECTION & SERVICE

CHECK THE INLET AND OUTLET ENDS OF
THE DRAIN LINE to make certain there are
no obstructions. If an obstruction is found:

Use compressed air to unblock an obstructed
drain line in a forced air evaporator model.
Remove the drain line at the evaporator coil
and attach an air line using 60 pounds of
pressure. The use of chemicals to clear a

clogged drain is not recommended.

6.2 YEARLY INSPECTION & SERVICE

1. INSPECT THE DOOR GASKET for cracks,
splits, and dryness.

2. INSPECT THE MOVING PARTS OF THE
DOOR LATCH assembly for signs of wear.
Check the screw tightness on both latch
and strike.

3. CHECK THE HINGES by opening the
door to a 90-degree angle to the cabinet.
With minimum pressure, lift up on the
outer edge of the door. Replace the hinges
if there is an upward movement of 1/2-inch
(12,7mm) or more.

6.3 THERMOSTAT ADJUSTMENT

Before making any adjustment to the
thermostat, check the door gasket for proper
seal. Proper adjustment can be tested by
pulling a dollar bill through the gasket seal
and feeling a slight resistance. If it is
determined a proper seal is maintained
around the full perimeter of the gasket, a
thermostat adjustment may be necessary.

1. Remove all shelves and remove the left-hand
side rack.

2. Remove the interior back wall of the unit by
lifting up and out.

3. The thermostat is located behind the back
wall in the upper left corner of the unit and
is clearly marked for adjustment purposes.
To adjust the temperature, turn the
thermostat counter-clockwise one or two
increments for colder operation. Turn the
thermostat clockwise one or two increments
for warmer operation. To avoid an unsafe
temperature or freezing, make small
adjustments only.

4. Replace back wall, side rack and wire
shelves. Close the cabinet door and allow
the unit to operate without interruption for
a period of one hour.

5. At the end of one hour, check the
temperature in the display. Repeat
adjustment as necessary.

6.4 CONDENSER FAN & MOTOR REPLACEMENT

1. Disconnect all electrical power to the unit.

2. Remove the ventilation grill. Lift the grill
vertically 1-inch (25mm) while pulling out on
the bottom and lowering the grill from the
retainer angles.

3. Remove the mounting bolts on the
condensing unit base and slide the
refrigeration assembly out.

4. Remove the protective shroud from around
the motor.

5. Remove the mounting screws at the motor
base.

6. Using an allen wrench, loosen the set screw
on the blade hub and slide blade from the
shaft.

7. Install the new condenser fan by reversing
the process.

8. Install the motor by reversing the process.

Operation and Care Manual #8410/11 • 4