HEVAC CONTROL AGENCIES PTY LTD. 7/54 HOWLEYS RD.
NOTTINGHILL, VIC. 95627888
www.hevac.com.au
06/11
/19
R5 FAN CONTROL METHOD
15/2
8
Another update with this latest version of the ENDEAVOUR is the ability to choose, whilst this air
conditioning system is enabled to run (whether that be "ON BY" : Time Switch, Run Timer or set to
operate by Manual on/off switch), that the fan relay - R5, can be set to remain ON continuously
(default) during the ON running period of the system
or
for the fan (R5) be set to cycle on & off when a
relay programmed as a heating or cooling temperature control stage enables. To set the fan control
method of R5, press the fascia button labeled “
ENTER
” and scroll down through the menu tree until “
R5
FAN CONTROL METHOD
” is displayed. Press the “
ENTER
” button to open this menu. The existing
method is displayed. The fan cycle method is a typical mode of fan operation in a domestic installation to
save on power & noise but in commercial buildings typically regulations call for the fan to remain on
continuously whilst the building is occupied to meet minimum building ventilation requirements, if
however minimum ventilation is achieved by some other means, it may be preferable to have the fan
cycle with the heating or cooling as required to reduce drafts & noise when the temperature is
comfortable.
To set or edit the two analogue outputs (Y1 & Y2) for mode of operation and output characteristics,
Press the fascia button labeled “
ENTER
” to have the LCD display jump to the 1st menu item in the
menu
tree..“
SET
CLOCK
”, scroll down through the menu tree with the “
DOWN
” arrow button until
“Y1 & Y2 ANALOGUE PROGRAMMING
” is displayed. Press the “
ENTER”
button to open this menu. A
summary screen is then displayed for Analogue output Y1, The other analogue output Y2 summary
screen can be seen by simply scrolling down this sub menu using the “
DOWN
” arrow button. To edit the
parameters for a particular analogue output, whilst at its summary screen press the “
ENTER
” button to
display its 1st item to edit which is “
MODE
” of operation -: the analogue outputs can be set as a
HEATING ONLY
,
COOLING ONLY
, “
BOTH
” mode output or
DISABLED
. Both means the analogue
output will function as both a heating and a cooling output with its parameters mirrored to operate on
either side of the controller’s setpoint: if for example the deadband is set to 1 degree, then the analogue
output will start to produce a DC output voltage from 1 degree above and 1 degree below setpoint. If an
analogue output is not needed it can be set to “DISABLED”. If both Y1 & Y2 are both disabled they will
not appear in the scrolling running display screens. It is also now possible to set each Y outputs min & max
O/P values, but note the minimum value is overridden and set to 0v when the controller is in the OFF mode.
Y1 & Y2 ANALOG
UE
(OUTPUTS) PROGRAMMING
