Ventilation; Electrical Requirements - Thermo Scientific A 40B Manual

Thermostats & refrigerated bath circulators
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Section 3 Installation

Ventilation

The unit can operate with 0 clearance on two exhaust sides as long as the
third exhaust side has unrestricted air flow. Blocked ventilation will increase
the unit's temperature, reduce its cooling capacity and, on refrigerated units,
eventually lead to premature compressor failure.
Ventilation Options
Electrical
The unit construction provides protection against the risk of electrical
Requirements
shock by grounding appropriate metal parts. The protection will not
function unless the power cord is connected to a properly grounded
DANGER
outlet. It is the user's responsibility to assure a proper ground
connection is provided.
The unit is intended for use on a dedicated outlet. All thermostats are
equipped with automatic thermally-triggered 20 Amp circuit protector.
NOTE If the circuit protector activates allow the unit to cool before
resetting. Restart the unit. Contact us if it activates again.
The circuit protection is designed to protect the controller, and is not
intended as a substitute for branch circuit protection. Position the unit so it is
not difficult to operate the disconnecting device.
If the unit's power cord is used as the disconnecting device, it must be
CAUTION
easily accessible at all times.
Refer to the bath nameplate on the rear, upper-left-hand corner of the
bath for specific electrical requirements. Voltage deviations of ± 10%
are permissible. The outlet must be rated as suitable for the total power
consumption of the unit, see next page.
NOTE If a bath and thermostat were purchased separately, follow the elec-
trical requirements listed on the bath nameplate.
3-2
Thermo Scientific

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