RelaDyne LubriMist IVT, Инструкция по установке и эксплуатации

Страница: 43 / 256

LubriMist ® Model IVT
Oil Mist Generating System
Installation and Operating Manual
Page 43
of 256
Cold Ambient Option (Air Preheating and Cabinet Heating) for ATEX constructions
The Cold Ambient Option (Air Preheating and Cabinet Heating) option for ATEX constructions is
recommended when the IVT Oil Mist Generator is installed in geographical locations where the
minimum ambient temperature falls below -10
°
C (15
°
F). This option is REQUIRED where the
ambient temperature drops below -20
°
C (-4
°
F) to maintain the ATEX certification. See page 15
for more information regarding permissible ambient temperatures.
The IVT Air Pre-heater system is designed to insure that during cold ambient conditions, proper
air and oil temperatures are maintained at the oil mist generator. The pre-heater is installed in the
incoming air supply. A sensor at the inlet of the heater senses the inlet air temperature. When the
inlet air temperature falls below 5
°
C (40
°
F), the pre-heater is activated. The discharge
temperature from the pre-heater is supplied to the mist head and air/oil heater at a controlled
16
°
C (60
°
F). A second sensor provides heater control and high-low alarm input signals. A third
sensor is used for high temperature heater cutout. The IVT cabinet enclosure is insulated to
retain radiated heat from the air pre-heater and discharge tubing.
When the IVT Oil Mist Generator is equipped at the factory with the air preheating system, no
additional user connections or installation is required.
Inlet Air
Connection
Inlet Air Temperature
Sensor
Heater Control And Cutout
Sensors Are Located In The
Heater Discharge
Air Preheater