Thermo Scientific Ultima II Instrução De Instalação

Do not exceed the electrical and temperature ratings printed on 
the dataplate located on the lower left side of the unit.

Improper operation of the equipment 

could result in dangerous conditions. To preclude 
hazard and minimize risk, follow all instructions and 
operate within the design limits noted on the dataplate.

Install the unit in a level, well-ventilated area free from vibration, 

with a minimum of six inches of space on the sides and 12 inches 
behind the rear. Refer to Section 5.3 for further instructions on 
leveling cabinets. Allow enough clearance so that the lid can 

swing open at least 90 degrees.

Do not position the equipment in direct sunlight or near heating 
diffusers, radiators, or other sources of heat. The ambient 
temperature range at the location must be 59 to 77ºF 
(15 to 25ºC). 

To allow for proper air flow, a minimum 

of 12 inches of clearance space is required behind the 
freezer. 

FLAMMABLE REFRIGERANT! 

Cryogenic models with voltage M, R, V and W use 
small quantities of the refrigerant R600a, which can 
form a combustible mixture when combined with 
oxygen. In order to conform with safety regulations, it 
is important to locate your freezer in a large enough 
space to minimize danger of combustion even in 
worst-case conditions (no ventilation, no air exchange, 
a steady refrigerant leak). Under these conditions the 
minimum free volume requirements would be at least 
86 m

3

 or 3006 ft

3

.

Connect the equipment to the correct 

power source. Incorrect voltage can result in severe 
damage to the equipment.

For personal safety and trouble-free 

operation, this unit must be properly grounded before 
it is used. Failure to ground the equipment may cause 
personal injury or damage to the equipment. Always 
conform to the National Electrical Code and local 
codes. Do not connect the unit to overloaded power 
lines.

Your freezer is equipped with the plug style shown in Figure 1, 

unless it is a 50Hz or 3-phase model. The standard NEMA plug 
meets UL requirements.

Always connect the freezer to a dedicated (separate) circuit. Each 
freezer is equipped with a service cord and plug designed to 
connect it to a power outlet which delivers the correct voltage. 
Supply voltage must be within +10%, -5% of the freezer rated 
voltage.

3-phase or 50Hz models require hard wiring to a disconnect 
panel.

Never cut the grounding prong from the 

service cord plug. If the prong is removed, the 
warranty is invalidated.

The unit must be level both front to back and side to side. 

To level chest models, leave the casters in place and shim the low 
wheel(s) with strips of sheet metal cut at least 1/2 in. wider than 

the caster.

30A-250V

NEMA 6-30P