Avantco MC34 User manual

Commercial School Milk Cooler
User’s Manual
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User Manual
Commercial School Milk Coolers:
MC34, MC49, MC58
Please read the manual thoroughly prior to equipment set-up,
operation and maintenance.
04/2015

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User Manual
Exploded Parts Diagram

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User Manual
*Consult Factory for Part Number
Item
No.
Parts Name CSP Part #
1Compressor 17810635
2 Power cord protector 20 *
3 Power cord protector 33 *
4Caster 17819301
Caster with brake 17816412
5 Cover of condenser fan motor *
6 Filter fixer *
7Condenser 17811611
8Condenser fan motor 17819194
Condenser Fan Blade 17814791
9 Front door gasket for MC34 178GSK T18747
Front door gasket for MC49 178GSKT17662
Front door gasket for MC58 178GSKT14156
10 Cover of temperature sensor *
11 Clasper *
12 Hook *
13 Hook Axis *
14 Cover of hook axis *
15 Drain hose *
16 Drain nut *
17 Cover for junction box *
18 Cover of Digital controller *
19 Assembling panel of
Compressor unit of MC34
*
Assembling panel of
Compressor unit of MC49
*
Assembling panel of
Compressor unit of MC58
*
20 Stopper 1 *
21 Right-angled connector *
22 Lock *
23 Lock Clasper *
24 Stopper 2 *
25 Top lid gasket for MC34 178GSKT17075
Top lid gasket for MC49 178GSKT11692
Top lid gasket for MC58 178GSKT14968
26 Front door for MC34 *
Front door for MC49 *
Front door for MC58 *
27 Transformer
28 Door connector 178HINGMC
29 Top lid for MC34 *
Top lid for MC49 *
Top lid for MC58 *
30 Shelf for MC34 *
Shelf for MC49 *
Shelf for MC58 *
31 Digital controller 17815350
32 Back grill for MC34 *
Back grill for MC49 *
Back grill for MC58 *
33 Cabinet N/A
34 Supporter for assembling
board
*
35 Bottom gasket for MC34 178GSKT19365
Bottom gasket for MC49 178GSKT10903
Bottom gasket for MC58 178GSKT19991
36 Top door for MC34 *
Top door for MC49 *
Top door for MC58 *
37 Top door gasket for MC34 178GSKT14381
Top door gasket for MC49 178GSKT15094
Top door gasket for MC58 178GSKT19480
38 Filter *
39 Screw *
40 Compressor pad *
41 Compressor pad sleeve *
42 Transformer Fixer *
43 Junction box *
44 Power cord *
45 Clip for power cord 17810175

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User Manual
Please read this manual thoroughly prior to equipment set-up, operation and maintenance.
Inspection
When the equipment is received, all items should be carefully checked against the bill of landing
to insure all crates and cartons have been received. All units should be inspected for concealed
damage by uncrating the units immediately. If any damage is found, it should be reported to the
carrier at once, and a claim should be filed with the carrier. This equipment has been inspected and
tested in the Avantco Refrigeration. Facility and has been crated in accordance with transportation
rules and guidelines. Manufacturer is not responsible for freight loss or damage.
Installation
GENERAL
Take care when removing the skid, so that it will not damage the cooler’s finish. Do not tip cabinet to
install casters or legs. Insure that the casters or legs are screwed all the way into the base.
LOCATION
The self contained refrigeration system located at the bottom of the cabinet requires free air access
for proper operation. The back of the cabinet may be positioned against a wall, however, there must
be a minimum four inch clearance between the sides and a wall. It is necessary to properly level
cooler to provide adequate drainage and efficient functioning of the unit.
ELECTRICAL
Check the proposed outlet to be used to insure that the voltage, phase, and current carrying
capacity of the circuit from the electrical panel correspond to the requirements of the cabinet. Plug
all standard models into a 110 volts A.C.60 cycle outlet. NEVER use an extension cord to power
any unit. All wiring between the electrical panel and the unit must be done in accordance with the
National Electric Code and all state and local codes. Refer to the Serial Tag for all pertinent electrical
information.

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User Manual
General Operation
The milk coolers are cooled entirely by convection as a result of copper coils completely encircling
the perimeter of the storage compartment. During the refrigeration process, heat is removed through
the evaporator tubing and expelled through the condensing unit. It is important that the flow of air
through the side louvers is not restricted in order to ensure the condensing unit operates properly.
Under normal operating conditions, any frost that might accumulate on the walls during the “on”
cycle of the condensing unit may melt during the “off” cycle. Drains are installed in all milk coolers to
accommodate melting frost.
The refrigeration system on this cabinet uses a temperature thermostat that senses the cut-in and
cut-out temperatures of the cold wall evaporator coil. The temperature can be adjusted by turning the
thermostat control knob which is located behind the louvered side panel.
General Maintenance
PERIODIC CLEANING
Beginning with the initial installation, the interior surfaces of the cabinet should be periodically
wiped down with a solution of warm water and baking soda. This solution will remove any odors
from spillage that has occurred. The exterior of the cabinet should also be cleaned frequently with a
commercial grade glass cleaner or with mild soap and water. Never, under any circumstances, use
an abrasive cleaner or alkaline solution.
Monthly cleaning of the condenser will aid the heat transfer characteristics of the refrigeration system
and increase its efficiency. To accomplish this, remove the louvered panel from the cabinet and use
a wire brush to loosen any dirt particles that are attached to the fins. After this is accomplished, use
a vacuum cleaner to remove the loosened particles.

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User Manual
Troubleshooting
Compressor Will Not Start, No Hum
Service cord unplugged Plug in service cord
Fuse blown or removed Determine reasons and correct
Control stuck open Repair or replace
Wiring incorrect Check wiring against the diagram
Compressor Will Not Start, Hums but Trips Overload Protector
Improperly wired Check against the wiring diagram
Low voltage to unit Determine the reason and correct
Starting capacitor defective Determine the reason and replace
Relay failing to close Determine the reason, correct or replace
Compressor Starts & Runs but Short Cycles on Overload Protector
Low voltage to unit Determine the reason and correct
Overload defective Check current, replace overload protector
Excessive head pressure Check ventilation or restriction in refrigeration system
Compressor hot-return gas hot Check refrigeration charge, fix leak if necessary