MSC-10
Page
7
ELECTRICAL CONNECTIONS
2.
Electrical Power.
Locate the power source of your building and
install the MSC-10 in the most convenient location. Protection from electrical
surges should be included in the planning of each installation. The MSC-10
electrical power default is a 230 VAC/60 Hz power source. It is also capable
of running on a 115 VAC/60 Hz.
3.
Electrical Power 3 Phase, 208 VAC/Variable Speed Fan.
In order
to control the speed of a variable speed fan, the MSC-10 must be
synchronized with the power source of the variable fan.
NOTE
Only the variable speed fan requires the same power lines as
the MSC-10, all other components can use a separate power
source.
4.
Electrical Cables.
All electrical cables must be installed according to
local wiring code. Each control module must be connected to the master
control unit using two-wire low voltage cable. It is recommended to use
shielded wire cable to interconnect the different modules to the MSC-10. The
shielded wire cable is very efficient to protect the MSC-10 against any
electromagnetic interference generated by a thunderstorm or other operating
machinery. This principle applies specifically when the cable is longer than 10
feet and for any probe extensions of the same length or longer.
CHAPTER 2
INSTALLATION GUIDELINES
AND SAFETY PROCEDURES
Set the line voltage switch inside the MSC-10 to the correct value before
attempting to operate the multistage computer.
Ensure that the same phases supplying the MSC-10 are the same as the two
power lines of the variable fan (s). Otherwise the control signal of the MSC-10
will be too early or too late and the fan will not rotate as expected.
CAUTION
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