46
VAPOR-LOGIC
®
VERSION 6 INSTALLATION AND OPERATION MANUAL
OPERATION
Status LED (Vapor-logic control board)
STATUS LED (VAPOR-LOGIC CONTROL BOARD)
The Vapor-logic control board includes a diagnostic Status LED that shows multiple humidifier control conditions. The
Status LED blinks in a 3-stage cycle over approximately four seconds. The Status LED is always “blinking”. It will be
easy to see that the board is powered and operating because, at a minimum, it is running the Status LED.
The blinking will be in a 3-stage cycle starting from being dark with the LED brightness illuminating up to the first stage
of indication.
Timing of the 3-stage cycle will be over approximately four seconds.
See "Vapor-logic control board LED indicators" on page 47.
FIRST BLINK: FAULTS
A yellow first LED blink indicates there is one (or more) of four conditions present that will prevent the humidifier from
operating. These conditions can be viewed as a message through the Vapor-logic display:
1. The interlock switch on cabinet or tank is open (connected at ISW input on control board).
2. There is no airflow.
3. The duct humidity high limit has been exceeded.
4. The Master Enable input is open (P20 input on control board).
A red Status LED blink indicates there is an active fault preventing the unit from operating. These conditions can be
viewed as alerts through the Vapor-logic display.
If the first Status LED blink is blue, the unit is set to Standby or Test mode. Unit must be set to Auto Mode to enable
operation. The Mode can be set through the touchscreen, or through an associated building automation system (BAS).
A green Status LED blinks Auto mode with no faults.
SECOND BLINK: COMMUNICATION STATUS
For single-tank installations, green or red indicates communications status to the associated touchscreen display.
If the humidifier is part of a multi-tank system, Green indicates communications is occurring between the controller and
other controllers and/or the touchscreen display. Red indicates there is no communications occurring. If the Status LED
is red, check the communications wiring between the master and other slave units.
THIRD BLINK: HUMIDIFICATION DEMAND
Without humidification demand the humidifier will not run, and the third blink in the Status LED sequence will be blue.
Demand is created through a connected humidistat, humidity transmitter, or through an external source such as building
automation system (BAS). When there is a call for humidification (demand), the third Status LED blink sequence will be
green.
To Next Page
Loading...
