GE Hydran 201i, Instruction Manual

Page: 163 / 300

Verification of Operation Prior to Installation
Part 17997 Rev. 6, March 2011 8-3
8.2.1 Preparation
To verify its operation, the Hydran 201C i -1 must first be connected to a functional
Hydran 201T i via a supervisory link cable. One end of this cable is already connected to
the H201T i . For details on commissioning the H201T i , see Chapter 6. Proceed as follows:
1. Connect a three-wire power cord to the ac Power 3-Terminal Block on the H201T i
(item 8 in Figure 2-4 on page 2-8): The live side to L1/L , the other side to L2/N , and
the ground to E/G . For additional wiring details, see Table D-1 on page D-1.
2. Connect the second end of the three-pair supervisory link cable coming out of the
H201T
i to the main terminal block on the H201C i -1 (item 6 in Figure 3-6 on
page 3-11).
3. Power On the H201T i .
4. Ensure the H201T i is operating normally and no gas or fail alarms are present, by
looking at the small LED indicators on the right side of the I/O module (refer to
Section 2.4.6.3 on page 2-11).
5. Connect a power cord to the terminals 1 and 2 on the main terminal block of the
H201C
i -1 (item 6 in Figure 3-6 on page 3-11), and connect the E/G wire to the
enclosure chassis.
6. Power On the H201C i -1.
8.2.2 Initial Observations
1. Verify the Hydran 201C i -1’s display is not blank. If it remains blank, the possible
causes are as follows:
• If the fail alarm is triggered, read the alarm message on the Hydran 201T i ’s display to
identify the cause of the alarm. Then see Chapter 12.
• Verify the connections at both ends of the supervisory link cable.
• Verify the fuse(s) and the ac power supply of the H201C
i -1 and H201T i .
• Verify the operation of the H201C i -1’s display.
2. Verify the H201C i -1’s display shows the same ppm value as the H201T i ’s scrolling
gas level display. A discrepancy of ± 2 ppm is acceptable.