Emerson VH User Manual

Press the MENU/ESC key to display the Main Menu. The Menu selections include:

• VIEW/SET ALARMS
• OPERATING STATUS
• VIEW/SET CONTROL SETPOINTS
• SYSTEM SETUP
• RUN DIAGNOSTICS
• DATE AND TIME
• PLOT GRAPHS
• ANALOG/DIGITAL INPUTS
• VIEW RUN HOURS LOG

Pressing the MENU/ESC key while the Main Menu is displayed will return the screen to the Status 

Display.

The normal status screen is divided into two sections, a right half and a left half. The left half displays 

the return air temperature and humidity readings in large characters. 

The right half of the screen is divided into four quadrants (top to bottom). In the four quadrants, six 

different graphic symbols may be displayed depending on the unit status. When an alarm is present, 

a hammer striking a bell appears at the top of the screen. The word “Alarm” appears beside the ham-

mer and bell. The second quadrant down displays a rotating fan when the unit is turned on and the 

fan is running. The words “Unit on” appear next to the fan symbol. The third quadrant may display 

one of two symbols relating to heating or cooling. If the control is calling for cooling, a growing snow-

flake is shown next to the word “Cooling.” If the control is calling for heating, three moving heat rays 

are displayed next to the word “Heating.” In the bottom quadrant, there may be one of two symbols 

relating to humidification and dehumidification. If the control is calling for humidification, a growing 

water drop is shown next to the word “Humidification.” If the control is calling for dehumidification, a 

shrinking water drop is shown next to the word “Dehumidification”. 

Selecting VIEW/SET ALARMS will step to the following menu: 

• ACTIVE ALARMS
• ALARM HISTORY LOG
• SETUP ALARMS
• SETUP CUSTOM ALARMS
• VIEW WATER DETECT FLOOR PLAN
• SETUP WATER DETECT FLOOR PLAN

This screen displays any active alarm. The alarms are numbered, #1 being the most recent. The type 

of alarm (Urgent or Warning) is also displayed. If there are no active alarms, then “NO ALARMS 

PRESENT” will be displayed.

A history of the sixty (60) most recent alarms is kept in nonvolatile memory along with the type of 

alarm, the alarm name, and the date and time of its occurrence. The first alarm in the history is the 

most recent and the last (up to 60) is the oldest. If the Alarm History is full (60 alarms) and a new 

alarm occurs, the oldest is lost and the newest is saved in alarm history location 1. The rest are moved 

down the list by 1. Alarm history on new units may show the results of factory testing.

NOTE
The display can also be set to display the temperature and humidity setpoints.