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12/10/2019
12:12:53
Device Instance: 1610101
Downloaded by: AppLoader AppLoader 12/10/19 05:53 AI654321
Application Software Version: PRG:vav_rtu_open_20180828
Flash Archive Status: Valid on 12/10/19 07:03:07
1 PRGs initialized.
1 PRGs running.
Module status:
Firmware sections validated in flash memory
--------------------------------------------
--------------------------------------------
Boot16-H_IAR
- v2.10:001
RTU-OPEH DRIVER
- v6.02:028
Fig. 20 — Example Modstat
Power
Rx
Tx
BO#
If Run LED shows...
2 flashes per second
2 flashes per second
2 flashes per second
2 flashes per second
2 flashes per second
5 flashes per second
5 flashes per second
7 flashes per second
14 flashes per second
On
POINT NAME
Safety Chain
Fire Shutdown
Gas Valve
Supply Fan
Supply Fan in Hand
Compressor Status
Space Temp Sensor
ZS Sensor
ZS Configuration
Supply Air Temp Sensor
Local OAT Sensor
CM: 1
Apr 18 2013
Jan
4 2017
The LEDs on the RTU Open controller show the status of certain functions
The Run and Error LED' indicate control module and network status
And Error LED shows...
Off
2 flashes, alternating with Run LED
3 flashes, then off
4 flashes, then pause
On
On
Off
7 flashes per second, alternating with Run LED
14 flashes per second, alternating with Run LED Brownout
On
Table 4 — VAV-RTU Open Alarms
ACTION TAKEN BY
CONTROL
Immediate Shutdown
Immediate Shutdown
Immediately operate fan at
highest speed
Immediately disable Operation Automatic
Ramp down Operations
Alert Generated
Ramp down Operations
Alert Generated
Alert Generated
Ramp down Operations
May cause Economizer and
Low ambient DX cooling
lockout to be disabled
Communication LEDs
The LEDs indicate if the controller is speaking to the devices on
the network. The LEDs should reflect communication traffic
based on the baud rate set. The higher the baud rate the more solid
the LEDs will appear. See Table 3.
Table 3 — LEDs
The VAV-RTU Open has power
The VAV-RTU Open is receiving data from the network segment
The VAV-RTU Open is transmitting data over the network segment
The binary output is active
RESET METHOD
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
30
Status is...
Normal
Five minute auto-restart delay after system error
Control module has just been formatted
Two or more devices on this network have the
same MSTP network address
Exec halted after frequent system errors or
control programs halted
Exec start-up aborted, Boot is running
Firmware transfer in progress, Boot is running
Ten second recovery period after brownout
Failure. Try the following solutions:
- Turn the VAV-RTU Open off, then on.
- Format the VAV-RTU Open.
- Download memory to the VAV-RTU Open.
- Replace the VAV-RTU Open.
PROBABLE CAUSE
Over load Indoor Fan or Electric Heater overheat
Smoke detected by smoke detector or
configuration incorrect
Gas valve stuck open after heating cycle, causing
heat to continue to operate.
Tripped Circuit Breaker, Broken belt, Bad indoor
fan motor, Configuration incorrect, Bad fan status
switch.
Bad Fan Status Switch, Configuration incorrect.
Compressor would not start
Bad sensor, bad wiring, failure to receive Network
or Linkage Space Temp value, or sensor
configured incorrectly.
This alarm indicates a communication failure of a
connected ZS sensor that previously had been
actively communicating.
This alarm indicates that at least one ZS sensor is
configured in the Sensor Binder properties and is
not actually communicating.
Faulty, shorted, or open thermistor caused by
wiring error or loose connection.
Faulty, shorted, or open thermistor caused by
wiring error or loose connection.
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