Intermediate Storage; Room Ventilation; Use With Air Exhaust Systems - Thermo Scientific Heratherm OGS Series Operating Instructions Manual

Installation

Intermediate Storage

• Place the oven on a floor stand (option; to be ordered separately), never on the lab floor.
• Consider installing one dedicated upstream circuit breaker per oven to avoid multiple
device failures in case of an electrical fault.
Intermediate Storage
When the oven is placed in intermediate storage, which is permissible for a maximum of
four weeks, make sure that the ambient temperature is between 20°C to 60°C (68°F to
140°F) and the maximum relative humidity does not exceed 90%, non-condensing.

Room Ventilation

Heat dissipating from the oven during continuous operation may cause a change in the
room climate.
Therefore, the oven must only be installed in rooms with sufficient ventilation.
Do not install the oven in room recesses without ventilation.
When several devices are to be placed in the same room, additional ventilation may have to
be provided as necessary.
To avoid any impact of the heat dissipated by the oven on the ambient climate the room
must be vented by means of a laboratory-grade ventilation system that complies with
applicable local and national health and safety regulations and has sufficient capacity.
If excessive temperatures tend to occur in the operating room, be sure to provide a thermal
protection means that cuts out the power supply to mitigate the impact of overtemperature
scenarios.

Use with Air Exhaust Systems

When the oven is connected to an air exhaust system be sure to adjust its air flow so the
temperature distribution pattern throughout the oven's workspace remains unchanged and
precision temperature control is maintained.
Also, be sure to interlock the oven and its exhaust system so both start and run at the same
time. The oven may be unable to overcome the extra flow resistance introduced by the idle
air exhaust system, which may cause the exhaust air to be vented into the surrounding lab
room.
Before using existing piping in the building to exhaust hot air from the oven, be sure that
such exhaust piping is made of heat-resistant material, so it will not overheat, melt and/or
cause a fire.
The oven's outer surfaces and its air exhaust piping may become hot, so be sure to maintain
the proper spacing from walls and ceilings specified by local building codes and/or fire
protection regulations.
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