N8000 Series Drop-In Installation and Operation Manual
For customer service, call (800) 733-8829, (800) 733-8821, Fax (989) 773-3210, www.delfield.com
12
Delfield
™
®
Operation N8100B, N8100NB & N8100-BR
N8100 Series mechanically cooled cold pans are adjusted
at the factory to provide proper operation without any further
adjustments. However, if it is necessary to adjust the
temperature, the control is located in the machine compartment.
Turn the knob clockwise as indicated on the control. Settings
are from 1 thru 7 (7 being the coldest). Adjustments should
be made gradually. Several small adjustments will be more
effective than one large adjustment. It may take an hour or
longer to realize the temperature change depending on the
application and location of the unit.
These units are not designed to cool warm food products. Items
should be placed in the unit pre-cooled at least to the desired
holding temperature, if not slightly colder. In some applications,
a gradual warming of product may occur, particularly at the
exposed top of the product. Stirring or rotation of the product
may be necessary to maintain overall temperature.
Warming of food product can occur very quickly outside of the
unit. When loading or rotating product, avoid leaving food items
in a non-refrigerated location for any length of time to prevent
warming or spoilage.
The temperature control is used to turn the unit on and off as
well as control the temperature of the cold pan. The settings
range from 1 through 7 (7 being the coldest). To turn the cold
pan off, turn the knob to the
OFF
position.
If the cold pan is to be used with ice, it is recommended that
the optional perforated bottoms be used. These will allow ice
to melt properly.
The unit must be turned off when not in use or overnight for
defrosting and cleaning.
Operation N8100-FA
N8100-FA Series forced air mechanically cooled cold pans come
equipped with 115-volt, 60 Hertz, single phase refrigeration
units. The refrigeration valves are open and ready to operate
as soon as the power supply cord is plugged into the standard
115-volt, grounded electrical outlet.
Pressure Control
The temperature is controlled by an adjustable pressure control
located in the machine compartment and adjustable control has
the word COLDER near the knob, with an arrow to indicate the
adjustment direction. This control is field adjustable and does
not require a service agent. If you have any questions, feel free
to contact the Delfield Service Department at (800) 733-8829.
In attempting to adjust the pressure control,
you can do damage to the unit by accidentally
adjusting the differential. Delfield is not
responsible for charges incurred while adjusting
the pressure control.
Food in the N8100-FA pans should not be loaded
in such a way as to interfere with the air curtain
flowing over the cold pans.
Ruby Tuesday Salad Bar Service and Installation Manual
For customer service, call (800) 733-8829, (800) 773-8821, Fax (989) 773-3210, www.delfield.com
8
DEFROST TIMER
Defrost Timer
Every 2 hours for 15 minutes.
18000 and CTP-NB Series Service and Installation Manual
5
For customer service, call (800) 733-8829, (800) 773-8821, Fax (989) 773-3210, www.delfi eld.com
Refrigerant Charges For 18000 Series Units:
18648-PTB . . . . . . . . . . . . . . . . . . . . . . .16 oz.
18660-PTB . . . . . . . . . . . . . . . . . . . . . . .24 oz.
18672-PTB . . . . . . . . . . . . . . . . . . . . . . .32 oz.
18691-PTB . . . . . . . . . . . . . . . . . . . . . . .32 oz.
18699-PTB . . . . . . . . . . . . . . . . . . . . . . .48 oz.
186114-PTB . . . . . . . . . . . . . . . . . . . . . .48 oz.
18648-BUC . . . . . . . . . . . . . . . . . . . . . . .16 oz.
18660-BUC . . . . . . . . . . . . . . . . . . . . . . .16 oz.
18672-BUC . . . . . . . . . . . . . . . . . . . . . . .16 oz.
18691-BUC . . . . . . . . . . . . . . . . . . . . . . .16 oz.
18699-BUC . . . . . . . . . . . . . . . . . . . . . . .24 oz.
186114-BUC . . . . . . . . . . . . . . . . . . . . . .24 oz.
Refrigerant Charges For CTP-NB Series Units:
CTP8146-NB . . . . . . . . . . . . . . . . . . . . . . .8 oz.
CTP8160-NB . . . . . . . . . . . . . . . . . . . . . . .8 oz.
CTP8175-NB . . . . . . . . . . . . . . . . . . . . . . .8 oz.
Pressure Control Settings
The factory recommended low-pressure control settings for 18000-PTB’s are:
55# cut-in and 30# cut-out to maintain
proper temperature for product in the rail. The interior temperature is controlled by the thermostat mounted on the
evaporator coil housing.
The factory recommended low-pressure control settings for 18000-BUC’s are:
82# cut-in and 57# cut-out to maintain
proper temperature.
REFRIGERANT CHARGES AND PRESSURE CONTROL SETTINGS
All Delfield refrigerated models come equipped with
115-volt, 60 cycle, single phase refrigeration units. The
refrigeration valves are open and ready to operate as soon
as the power supply cord is plugged into the standard 115-
volt, grounded electrical outlet.
Pressure Control
The temperature is controlled by an adjustable pressure
control located in the machine compartment. An adjustable
control has the word
COLDER
near the knob, with an arrow
to indicate the adjustment direction. These controls are
field adjustable and do not require a service agent. If you
have any questions, feel free to contact the Delfield Service
Department.
In attempting to adjust the pressure control,
you can do damage to your unit by accidentally
adjusting the differential. Please make small
incremental adjustments if a temperature
adjustment is necessary, please contact the
service department at Delfield (800) 733-8821
or your local service agent. Delfield is not
responsible for charges incurred while having
the pressure control adjusted.
PRESSURE CONTROL SETTINGS
30 psi (207 kPa) differential
80 psi (552 kPa) cut-in
50 psi (345 kPa) cut-out
