DriSteem Vapor-logic3 Instrucciones de operaciones descargar pdf (Pagina 59)

57

 Open, shorted, or

incorrect wiring of

humidistat

 Signal by others is

incorrect, out of

range, or miswired.

 Control signal by

others has exceeded

the range limits.

 Open, shorted, or

incorrect wiring of

transmitter

 Open, shorted, or

incorrect wiring of

transmitter

 Sensor improperly

located

 When in the fill

sequence,

VAPOR-LOGIC

3

allows 40 minutes

for the water to reach

the maximum proper

level.

 If the water does not

reach the designated

level, and the probe

system is not

satisfied, a fault will

be indicated.

Operation

Operation:

Troubleshooting guide

Troubleshooting guide.

Problem

number

Problem Possible cause Action

Humidistat fault

VAV humidity

transmitter fault

Temp comp

transmitter fault

Fill fault

 Check wiring terminals

(VAPOR-LOGIC

®

3

terminal J26) for

correct wiring and voltages.

 Check wiring terminals

(VAPOR-LOGIC

3

terminal J26) for

correct wiring and voltages.

 Correct control signal to 0-20 mA,

0-135 ohms, or 0-15 VDC.

 Check wiring terminals

(VAPOR-LOGIC

3

terminal J27) for

correct wiring and voltages.

 Check wiring terminals

(VAPOR-LOGIC

3

terminal J28) for

correct wiring and voltages.

 Transmitter must be on inside window

glass only.

 Check water supply shut-off valve. If it

is closed, open the valve.

 Check if the in-line strainer or valves

are plugged. Clean them as needed.

 Check if there is 24 VAC present at

control board terminals 1 and 2. If yes,

replace valve.

 Verify proper fill valve wiring.

 Clean or replace probe.

 Verify drain valve is closed.

 Verify proper water pressure,

minimum 25 psi.

6

7

8

9

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