MARVEL Scientific 4EAF - Manual (Page 7)

ADJUSTING THE TEMPERATURE CONTROL
Adjusting the temperature control
The temperature control shaft is located behind the front grill on
the right side of the cabinet. (See Figure 1, on page 4). It can be
adjusted with a flat bladed screwdriver.
Initially set the control midway between the turning ranges.
Then adjust to the temperature that suits your application. The
more the shaft is turned clockwise, the cooler the temperature.
To turn off the refrigeration system turn the shaft counterclock-
wise until it stops.
Defrosting Instructions
Model 6EAR (all-refrigerator) automatically defrosts its cooling
plate during each compressor off cycle. No manual defrosting is
required.
The combination refrigerator / freezer (6ERF) and the freezer
(4EAF) are manual defrost models and require occasional de-
frosting. Never use a scraper or any tool that might scratch or
pierce the cooling plate. Follow these steps whenever 1/4 inch or
more of frost accumulates.
1. Set the temperature control to the “OFF” position by turn-
ing the temperature control shaft counterclockwise until it
stops. This will turn off the refrigeration system.
2. Remove the contents from the unit.
3. Place pans of hot water on the cooling plate if you wish to
speed up defrosting.
4. Wipe out the interior and replace the contents.
5. Set the temperature control to the desired level.
In the Event of a Power Failure
Minimize the number of door openings to prevent a gradual rise
in temperature while the power is off.
NOTE: If a power interruption occurs, the unit may take five (5) to
ten (10) minutes to restart.
Energy Saving Tips
The following suggestions will minimize the cost of oper-
ating your refrigeration appliance.
1. Do not install your appliance next to a hot appliance,
(cooker, dishwasher, etc.). heating air duct, or other heat
sources.
2. Install product out of direct sunlight.
3. Assure the toe grille vents at front of unit beneath door
are not obstructed and kept clean to allow ventilation
for the refrigeration system to expel heat.
4. Plug your appliance into a dedicated power circuit. (Not
shared with other appliances).
5. When initially loading your new product, or whenever
large quantities of warm contents are placed within
refrigerated storage compartment, minimize door open-
ings for the next 12 hours to allow contents to pull down
to compartment set-point temperature.
6. Maintaining a relatively full storage compartment will
require less appliance run time than an empty compart-
ment.
7. Assure door closing is not obstructed by contents stored
in your appliance.
8. Allow hot items to reach room temperature before plac-
ing in product.
9. Minimize door openings and duration of door openings.
10. Use the warmest temperature control set-point that
meets your personal preference and provides the proper
storage for your stored contents.
11. For wine storage products:
a. When serving temperatures are not required, re-
turn the compartment(s) set-point to the ideal red
and white wine long term storage temperature of
13
°C / 55°F.
b. For Dual-Zone product with two (2) independent
temperature controlled compartments, use the
lower compartment for the coldest storage /
serving temperature, (i.e.- red wines on top, white
wines in lower).
12. Minimize use of display lighting option on glass door
products, (light stays on with door closed).
13. When on vacation or away from home for extended pe-
riods, set the appliance to warmest acceptable tempera-
ture for the stored contents.
14. Set the control to the “off” position if cleaning the unit
requires the door to be open for an extended period of
time.
15) Annually clean condenser heat exchange coil located
on the back of the unit. See page 8.
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