Trane VAV-UCM 4.2, Инструкция по установке и обслуживанию, Страница: 66 / 88

66 VAV-SVX01C-EN
Troubleshooting
Note: When checking signal strength, both LED1 and LED3 on the receiver and sensor should
illuminate in unison if the sensor and receiver are associated. Use this feature to confirm
association. If not associated, see setup procedures in Wireless chapter. If unit still does not
work proceed in checking Receiver and sensor with testing procedures below.
2. Procedure for Testing the Receiver
• Make sure the receiver is powered.
• Set the receiver address to 000 to force the zone temperature output and zone temperature
setpoint output to their test mode values (see
Table 19, p. 66 ).
Press Test
Button (SS)
LED1:Off
LED2:Off
LED3:On
Displays for 5 seconds, then constantly off
Poor signal quality
* Unreliable communication.
* Strongly recommend moving the sensor or receiver to
a better location.
Figure 37.
Table 19. Output failure modes of operation
Situation Zone Temperature Output Zone Setpoint Output
Receiver address = 000
11.17 k Ω , 72.5
o
F (22.5
o
C),
indefinitely
451 Ω , 72.5
o
F (22.5
o
C), indefinitely
Receiver address = 001 to 999
Receiver has powered up, but has not
received a communication from
sensor.
11.17 k Ω , 72.5
o
F (22.5
o
C) 451 Ω , 72.5
o
F (22.5
o
C)
Receiver address = 001 to 999
Receiver does not receive a
communication within 35 minutes
from the sensor it is associated with
Open Open
Receiver has no power Open Open
Thermistor in sensor has failed to
either open or close
Open Normal value
Setpoint potentiometer has failed to
either open or close
Normal value Open
Table 18. Signal quality: LED1, LED2, LED3 on the sensor (continued)
User Action LED Display Indicates…