Onicon System-30 BTU Manual de usuario descargar pdf (Pagina 21)

11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax (727) 442-5699 • [email protected]

System-30 BTU Measurement System Manual 05/14 - 0667-2 / 18335 Page 21

COMMISSIONING WORKSHEET - ONICON BTU METERS

Please read all installation instructions carefully prior to proceeding with these steps. Wiring

diagrams are located in the appendix. Use the following worksheet for checking off the

commissioning steps and recording measured values:

Step Test/Measurement S/N: S/N: S/N: S/N:

1. Meter location

2. Supply voltage veried

3. Verify diagnostic LED’s

are ashing.

4. Note and record

temperature readings

for T1, T2 and delta-T.

5. Note and record ow rate.

6. Conrm contact closure

output operation for

Mode 1 & Mode 2.

TROUBLESHOOTING GUIDE FOR ONICON SYSTEM-30 BTU MEASUREMENT SYSTEMS

NOTE: Also refer to the COMMISSIONING GUIDE located on the preceding page.

Reported Problem Possible Solutions

No ow signal/ energy signal

(While hydronic system is active)

• Verify 24 VAC supply voltage to the

System-30.

• Verify correct wiring to the System-30 (see

wiring diagram).

• Check turbine for clogging due to debris.

• If none of the above, double check hydronic

system to ensure that ow is really present in

the line.

• NOTE: Flow meter function cannot be veried

by blowing on the turbine. The sensing

system requires a conductive liquid to

operate.

Displayed ow rate too high or too low • Verify that System-30 isolation valves are

fully open and bypass valve is fully closed (if

bypass is used).

• Check turbine(s) for debris.

• Verify supply voltages.

Displayed temperature(s) too high or too low vs.

expected values

• Verify that thermowell is inserted into the

ow stream and that the temperature sensor is

completely inserted into the thermowell.

Data not available at the control system • Verify that the wiring to the building control

system is correct.

For technical assistance, contact ONICON at (727) 447-6140.

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