Delfield D4448N-18M User Manual
4448n mega top, Models

Project __________________________________
Item ____________________________________
Quantity ________________________________
CSI Section 11400
Approved _______________________________
Date ____________________________________
980 S. Isabella Rd.
Mt. Pleasant, Michigan 48858
Phone: 800-733-8948 or 989-773-7981
Fax: 800-669-0619
www.delfield.com
Exterior top is one-piece 22-gauge stainless steel with 
integral 2.12” (5.4cm) square nosing on the front. Top of 
drawer unit has openings to accept eighteen 1/6 size plastic 
pans 4” (10cm) deep. Top of door unit has openings to accept 
eighteen 1/6 size plastic pans 4” or 6” (10cm or 15cm) deep. 
Adapter bars and 1/6 size pans are supplied by Delfield. Top 
has one telescoping lid is constructed of 20-gauge stainless 
steel. Temperature in top openings maintains 33°F (1°C) to 
41°F (5°C), with pans recessed 2.5” (6.4cm) at 86°F ambient 
room temperature, meeting NSF 7 requirements. One 48” x 8” 
x .5” (121.9cm x 20.3cm x 1.3cm) polyethylene cutting board 
treated with antimicrobial agent is mounted on the top at 
the front edge.
Dual level pan brackets allow the pans to be lowered an 
additional inch in the unit without tools to provide additional 
pan temperature holding performance.
Exterior back and bottom are two-piece 24-gauge galvanized 
steel. Exterior ends are stainless steel.
Interior sides are thermoformed ABS plastic with integral shelf 
supports. Base is fully insulated with high-density foamed in 
place environmentally friendly, Kyoto Protocol Compliant, Non 
ODP (Ozone Depletion Potential), Non GWP (Global Warming 
Potential) polyurethane.
Refrigeration system uses HFC-404A refrigerant. Compressor
is 1/5 H.P., with condenser coil and hot gas condensate 
evaporator mounted on rear of the cabinet. Evaporator coil 
is located on the interior rear wall of the cabinet. Refrigerant 
flow is controlled by a capillary tube. Cabinet maintains an 
interior cabinet temperature of 36°F to 40°F (2°C to 4°C).
ACT control: ACT electronic, solid state control, mounted on 
the exterior rear of the cabinet, allows unit to maintain precise 
temperatures in heavy duty conditions.
Electrical connections are 115 volt, 60 Hertz, single phase. 
Unit has a 6’ (1.8m) long electrical cord and NEMA 5-15P plug.
Casters: Equipment is mounted on 5” (13cm) diameter plate 
casters with front two locking. Equipment clearance above the 
floor is 2.5” (6cm).
Doors have a 24-gauge stainless steel exterior, with 
thermoformed ABS plastic interior liner. Cabinet has one 
adjustable epoxy-coated wire shelf per door opening.
Drawers have 24-gauge stainless steel exterior with 
thermoformed ABS plastic interior liner. Drawer frames are 
12-gauge stainless steel. Drawer slides are 11-gauge stainless 
steel with Delrin bearings. Each top drawer will hold one 
12” x 20” (30.5cm x 50.8cm) pan and three 1/9 size 4”-6” 
(10.1cm-15.2cm) deep pans. Each bottom drawer holds one 12” 
x 20” (30.5cm x 50.8cm) pan and three 1/9 size 4” (10.1cm) deep 
pans. Pans are supplied by others.
Specifications
Standard Features
Options & 
Accessories
• Patented air screen ensures product stays cold
without drying it out
• All 4400 Series units are 100% front breathing,
which allows the unit to be pushed against 
a wall or built into a cabinet or an existing 
line up
• Durable, rugged stainless steel sides, top and
front
• Features Delfield’s exclusive ABS interior (on
sides). ABS is extremely durable - it won’t dent, 
chip or corrode and is backed by a limited 
lifetime warranty
• Delfield supplies 1/6 size pans and positive
placement adapter bars for top opening
• Dual level pan brackets allow the pans to be
lowered an additional inch in the unit without 
tools to provide additional pan temperature 
holding performance
• Mega top refrigerators are standard with 8”
wide, dishwasher safe polyethylene cutting 
board treated with antimicrobial agent
• “D” prefix models feature Delfield’s new drawer
system. Drawers are backed by a 10-year 
warranty on the track assembly
•	 Environmentally friendly R404A refrigerant
•	 High density foamed in place environmentally 
friendly, Kyoto Protocol Compliant, Non ODP
•
4448N-18M
Two section with doors, eighteen pan capacity
•
D4448N-18M
Two section with drawers, eighteen pan capacity
Models
4448N Mega Top
Front-Breathing Self-Contained Mega Top Refrigerated 
Bases
4448N M
ega 
Top: F
ront
-Br
eathing S
elf-
Contained M
ega 
Top R
efr
igerat
ed Bases
(Ozone Depletion Potential), Non 
GWP (Global Warming Potential) 
polyurethane keeps energy costs low
•	 Black recessed quick grip handle
•	 Standard on 5” casters for easy 
cleaning and installation
•	 6’ cord and plug supplied
•	 One epoxy coated wire shelf standard, 
installed per door section
•	 ACT solid state electronic control
•	 Three year parts and labor warranty 
and an additional two year compressor 
parts warranty
•	 Flat lift off cover
•	 18” wide single tier overshelf
•	 Stainless steel finish on back
•	 Plastic laminate on front
•	 Additional wire shelves
•	 3” casters, 3.75” ride height
•	 Door lock 
•	 Exterior thermometer 
•	 220V/50 Hertz electrical system*
* Inclusion of this option will alter
electrical specifications of the unit
4448N-18M
