Veris Industries VH7200 SERIES Install - Manual (Page 7)

7
Programming and status display instructions
Status display
The Humidistat features a two-line, eight-character display. There is a low level back-light level that is always
active and can only be seen at night.
When left unattended, the Humidistat has an auto scrolling display that shows the actual status of the system.
There is an option in the configuration menu to lockout the scrolling display and to only present the room humidity
and conditional outdoor humidity to the user. With this option enabled, no local status is given of mode, schedule
and relative humidity.
Each item is scrolled one by one with the back lighting off. Pressing any key will cause the back light to come on.
When left unattended for 10 seconds after changes are made, the display will resume automatic status display
scrolling.
To turn on the back light, press any key on the front panel. The back lit display will turn off when the humidistat is
left unattended for 45 seconds.
Sequence of auto-scroll status display:
Humidity Effective RH Setpoint System Mode Outdoor Temperature Alarms
Humidity RH reset Sys mode Outdoor Service
xx %RH xx %RH off x.x °C or°F
Sys mode
auto Canister
Sys mode
Humid
Sys mode
Dehumid
Humidity
Displayed value is either the internal humidity sensor or will automatically switch to display the value of a remote
sensor if one is connected on terminal HS
Effective RH Setpoint
This conditional display prompt will show the actual reset value of the humidification setpoint if:
• The humidistat is not in dehumidification
• The outdoor temperature sensor is connected
• The outdoor temperature humidification setpoint reset function is used
• The outdoor temperature value is below the reset RH higher outside humidity setpoint
parameter
System Mode
Displayed and available system modes are dependent on the configured sequence of operation parameter.
Selected sequence of operation Modes available
Default
mode
0 = Ahu 0-10V Analog humidification only Off - Humid Humid
1 = 2Phu 2 position On-Off humidification Off - Humid Humid
2 = 2Pdh 2 position On-Off dehumid only Off - Dehumid Dehumid
3 = Ahu 2Pdh Analog humidification & 2 position On-Off dehumidification Off – Humid – Dehumid - Auto Auto
4 = 2Phu2Pdh 2 position On-Off humidification & 2 position On-Off
dehumidification Off – Humid – Dehumid - Auto Auto
Outdoor Temperature
Is displayed only when an outdoor temperature sensor is connected or a valid network value is received.
Alarms
This conditional prompt will display alarms when they are detected
• Alarms will automatically be displayed at the end of the status display scroll.
• During an alarm message display, the back lit screen will light up at the same time as the message and shut
off during the rest of the status display scroll.
• Two alarms maximum can appear at any given time. The priority for the alarms is as follows:
Service Indicates that there is a service alarm as per one of the programmable binary input ( BI)
Canister Indicates that the canister is dirty as per one of the programmable binary input ( BI)