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Laboratory Refrigerators - LR Series

Puffer Hubbard laboratory refrigerators, shown with optional casters.

Models LR450A left; LR430A, right; and undercounter LR45A, foreground. Temperature recorders, alarms, double pane glass doors and casters are optional; see Accessories


Cabinet Capacity: Seven sizes from 5.4 to 78.8 cu.ft. (153 to 2231 liters).

Operating Temperature: Adjustable, +1°C to +8°C, factory pre-set to +4°C.

CryoLogic™ Control System: Key-operated power switch for security; includes digital display, graphic thermometer, automatic defrost system, alarm/monitor for overtemp, door ajar, power failure, low alarm battery and maintenance alert.

Inventory System: Zinc-plated, open wire shelves, adjustable in 1" increments; no tools required.

Refrigeration System: Heavy-duty industrial compressor, hermetically sealed; extra sound insulation to minimize noise. Positive, forced-air circulation maintains uniform temperature throughout cabinet. CFC-free refrigerants are standard.

Defrost: Automatic, upon demand, no defrost timer required. A built-in condensate evaporator eliminates need for a drain line.

Cabinet Construction: Foamed-in-place, CFC-free urethane insulation protects against ambient temperature changes and minimizes operating cost. Adjustable leveling feet, standard; casters are optional.

Door(s): Spring-loaded doors close against non-porous peripheral gasket for positive seal.

Lights: Interior mounted, door activated lights on 12 cu. ft. model only. Independent switch on external control panel is also standard on 23.3 cu.ft. and larger models.

Finish: Interior and exterior surfaces are finished with a high impact powder coat paint.

Optional Accesories: Stainless steel interior or exterior, validation testing.


Specifications
+4°C Operating Temperature, CryoLogic™ Control System

Model

Voltage/Hz

Amps/
Breaker

Cu.Ft./
Liters

Int. Dimensions
inches/cm

Ext. Dimensions
inches/cm

Door(s)

Shelves

LR44A**

115/60

4.3/15

5.4/
153

21"H x 21.75"F-B x 20"W
53.3cm x 55.2cm x 50.8cm

34.5"H x 24"F-B x 24"W
87.6cm x 61cm x 61cm

1

2

LR412A

115/60

5.8/15

11.5/
325

52.4"H x 21.75" F-B x 20"W
133.1cm x 55.3cm x 50.8cm

71.9"H x 28.75" F-B x 24" W
182.6cm x 73cm x 61cm

1

4

LR423A
LR423D

115/60
208-230/60

12.0/15
8.5/15

23.3/
659

58"H x 29"F-B x 24"W
147.3cm x 73.7cm x 61cm

77.5"H x 36.2"F-B x 28"W
196.9cm x 92cm x 71.1cm

1

4

LR430A
LR430D

115/60
208-230/60

12.0/15
8.5/15

29.2/
826

58"H x 29"F-B x 30"W
147.3cm x 73.7cm x 76.2cm

77.5"H x 36.2"F-B x 34"W
196.9cm x 92cm x 86.4cm

1

4

LR445A
LR445D

115/60
208-230/60

12.0/15
8.5/15

45.8/
1297

58"H x 26"F-B x 52.5"W
147.3cm x 66cm x 133.4cm

77.5"H x 33"F-B x 56.5"W
196.9cm x 83.8cm x 143.5cm

2*

8

LR450A
LR450D

115/60
208-230/60

12.0/15
7.5/15

51.1/
1447

58"H x 29"F-B x 52.5"W
147.3cm x 73.7cm x 133.4cm

77.5"H x 36.2"F-B x 56.5"W
196.9cm x 92cm x 143.5cm

2

8

LR475A
LR475D

115/60
208-230/60

12.0/20
8.5/15

78.8/
2231

58"H x 29"F-B x 81"W
147.3cm x 73.7cm x 205.7cm

77.5"H x 36.2"F-B x 85"W
196.9cm x 92cm x 215.9cm

3

12

*Sliding Glass Doors
** 5 cu.ft. only does not feature the CryoLogic™ Control System

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