9/2
8
S
ET *START BY* METHOD
(
A/C START / STOP CONTROL
)
To set the A/C system "START BY" method, press the fascia button labeled “
ENTER
”
then press the DOWN arrow button once to have the LCD display show the 2nd item in the
menu tree (after
SET
CLOCK) : “
SET START BY METHOD
"
Press the
ENTER
button to open this menu & see the existing setting, use the UP &
DOWN buttons to cycle through the 3 choices :
“
MANUAL
”, “
TIME SWITCH
” or “
RUN TIMER
”
.
Select your choice by pressing the “
ENTER
” button. The display will then return to this
parent menu. Exit to the normal running screens by pressing the “
ESC
” button or scroll to
another main menu item to edit or check using the “
UP
” or “
DOWN
” arrow buttons.
1.)
MANUAL
- S
ystem ON/OFF
state set
only
by an external “System Switch” or
external
interlock wired in parallel with the 2 sensor wires connected to
our
passive
temperature
sensor
or
alternatively shorting the controllers D1 & M
terminals which has the same affect,
results in a “System Off” mode, with all
relays and analogue outputs de-energized, Opening the switch allows 24/7
operation until the switch or interlock is closed again.
2.)
TIME SWITCH
(1)
System
enabled by
the controllers internal main 7 day Time Switch,
which can be
programmed
for a total of 18 possible switching events for
individual or groups of days (allowing multiple on/off times per day).
3.)
RUN
(for)
TIMER
System
operation triggered by a momentary on/off pulse from a
switch wired in parallel with the 2 (passive) sensor wires or across the
controllers D1 & M terminals. Adjust the timer for the required time i.e. 8 hours.
HEVAC CONTROL AGENCIES PTY LTD. 7/54 HOWLEYS RD.
NOTTINGHILL, VIC. 95627888
www.hevac.com.au
2
2
/10/19
