Micromod MOD: Modcell 2050R Users Guide User Manual
Page 13
IB-23C650
INSTALLATION
MOUNTING
The controller must be installed in an approved enclosure or installed in a
means acceptable to the authority having jurisdiction for electrical installations.
Select a mounting location where there is minimum vibration. The ambient
temperature must be between 32 and 131°F (0 and 55°C) with a relative
humidity of 25-95% RH (noncondensing). The panel must provide rigid
support for the 3.2-pound (1.45 kg) controller and any other panel devices.
Assure that electrical wiring routing and support are planned. The front face of
the controller is designed to NEMA 4 environment.
Mount the controller as follows:
1.
Prepare the panel as indicated in Figure 1.
2.
Draw a 1/4" boundry around cutout for reference when caulking. Apply
a 1/4“ bead of silicon caulking (Loctite # 59530 or equivalent) on the
panel around the cutout.
NOTE: If NEMA 4 is not required, the controller can be installed
without the gasket or the caulking.
3.
Slide instrument housing only into panel cutout.
4.
Insert brackets into slots in top and bottom of instrument housing.
Be sure the housing gasket is not pinched or twisted between the
instrument housing and the front of the panel.
5.
Tighten retaining screws to a torque of 5 inch-pounds (0.6 Nm) or 1-1/2
turns after contact is made with the back of the panel.
6.
Wipe the excess silicon caulking to form a smooth fill and allow it to
dry for 24 hours.
7.
After the caulking has dried, insert the instrument into the housing and
tighten the two jack screws to 7 to 10 inch-pounds (0.8 to 1.1 Nm) or
1-1/2 turns after the front face draws into the gasket.
PURGING
When necessary, the controller can be air purged to control its ambient
environment. It must be mounted in a sealed container with suitable air purge
connections and purge pressure regulating equipment. For rapid air volume
exchange during startup, the controller can withstand a purge pressure of 5
inches of water for 10 minutes. For normal operation, the controller can
withstand a sustained purge pressure of 2 inches of water indefinitely.
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