HEVAC CONTROL AGENCIES PTY LTD. 7/54 HOWLEYS RD.
NOTTINGHILL, VIC. 95627888
www.hevac.com.au
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8
USER INTERFACE
The controllers face plate has four push buttons to access & edit controller settings.
“
ENTER
” ACTS AS THE SAVE OR MENU OPEN BUTTON
“
ESC
” ACTS AS THE EXIT OR JUMP BACK TO PREVIOUS MENU BUTTON
“
UP
& “
DOWN
” BUTTONS ADJUST SETPOINT, SCROLL MENUS & TO EDIT VALUES.
The controller has a backlit (16x2) LCD screen & 5 red LED’s to give
controller
input & output
status. The LCD screen will automatically cycle through relevant screens displaying applicable
information as per the users programmed use of the controller ie : Room Temperature,
Setpoint, System “On By”, Time & Date, Analogue Output Values, Outside Air Temperature,
CO2 ppm levels, Supply Air temperature
, analogue output levels
etc.
To access the menu list as shown on page 7
,
press the
ENTER
button & use the
UP
&
DOWN
arrow buttons to scroll through the menu
s
, pressing
ENTER
to open a particular menu to edit.
The relay assignments are user programmable and as such the relay “use identifier” text box
above each LED is not factory marked and is for optional labeling by the commissioning
technician. The factory default settings for these relays, from left to right is : COMP3, COMP2,
COMP1, R/V HEAT, FAN
, b
ut could for example be assigned and marked as per
the labeling
shown bottom of this page
. The analogue outputs Y1 & Y2 if used, are shown as a LCD
display screen.
The keyboard can be set in three
lock levels
, level 0 is unlocked, level 1 allows setpoint
adjustment only, level 2 allows no adjustment. To access the lock levels press & hold all four
button for 5 seconds & release to display the existing level, adjust using the
UP
or
DOWN
arrow buttons and press the
ENTER
button to set & return to the running screen.
The LCD screens will automatically cycle through each relevant display
.
*
example of optional identification of
output relays by installation contractor
*
*
*
*
