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CI-900 Instruction Manual 8/10/2015
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49
To connect a gas control to the terminal block of the CI-900, first pull off the removable portion of
the terminal block (pull straight out). The piece in the figure below will separate from the CI-900.
Slide the wire from what is going to be controlled through the opening for pin 4 or pin 5. Use a
screw driver to tighten and clamp onto the wire, creating a connection. The removable section of
the terminal block is designed to stay with the fan or gas control so, if the CI-900 needs to be
moved, the terminal block can be disconnected easily.
Figure 17: The removable piece of the CI-900 terminal block.
The 10 pins of the terminal block have the following designations:
PIN
Function
1 and 2
Ground
3
Plus 5 volts (limited through 4.7 ohm resistor)
4
Gas valve control (5 V)
5
Ready signal (5V)
6
Alarm or error indicator
7 and 8
Analog outputs (4-20 mA)
9 and 10
Analog inputs(4-20 mA)
Setup Board
The Setup Board Menu should only be changed by a CID Technician. This menu allows the user the
select the type of hardware platform that the unit operates on, and should only be changed at
installation, or if hardware is upgraded.
Summary of Contents for CI-900
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