EMI WLHA - Manual (Page 22)

www.enviromaster.com WLCA/WLHA High Wall Evaporator 22
sleep timer
The
SLEEP TIMER feature allows the
user, with the push of a single button, to
have the unit switch off using the preset tim-
er. When the control is in the “On” mode,
pressing the “TIMER” will enter or exit the
Sleep Timer mode. When in Sleep Timer
mode, the word “TIMER” will appear on the
LCD display. The unit will continue to oper-
ate for thirty (30) minutes then switch off.
test mode
Test mode is a feature where by all
timers are reduced or eliminated. Test
mode is intended to aid the technician
while checking system operation after in-
stallation or during trouble shooting. Test
mode is not intended for the end user or
for normal operation. Also test mode is
not available while in Remote Wall Ther-
mostat mode”.
To enter Test mode the control must
first be in the Off mode. Then by press-
ing the “ON/OFF”, “PROG” and “TIME”
buttons simultaneously for three seconds
the unit will enter the Test mode. While in
Test mode the display will flash “tSt” pe-
riodically. The operation of the unit can
be checked without having to wait out the
delays. To exit the Test mode press the
“ON/OFF”, “PROG” and “TIME” buttons
simultaneously again or by cycling off the
main power to the control.
CAUtion:
Do not cycle the unit
on and off repeatedly while in Test
mode as this will cause damage to
the compressor. Do not leave the
unit in Test mode
sEqUEnCE of opErAtion – Unit moUntEd KEy pAd modE
sEqUEnCE of opErAtion – WALL moUntEd tHErmostAt modE
For Wall mounted thermostat op-
eration the control must be configured
through the Configuration mode. Be sure
to select Remote – ON in the configura-
tion menu. (See Configuration mode)
In Remote Thermostat mode the unit
mounted keypad will have limited capabil-
ity. Some of the buttons will not be oper-
able. Only the FAN and TIME buttons will
function. The ability to clear the FILTER
CHECK warning will also be available by
pressing the MODE and FAN buttons si-
multaneously.
Choosing a Thermostat:
EMI offers several remote thermostats
that are compatible with the Ductless split
system air handlers. See the latest price
list for a list of available thermostats. It is
important to choose a thermostat that will
match the equipment that you have se-
lected. For single stage cooling or heart-
ing choose a single stage Heat/Cool ther-
mostat. If you have selected an outdoor
heat pump unit and an indoor unit with
electric heat then chose a two-stage heat-
ing, single-stage cooling thermostat.
Selecting a thermostat “by others”
When selecting a thermostat other than
those offered by EMI, it is important to
choose a 24V thermostat that matches
your application. EMI equipment is com-
patible with most mercury bulb, digital or
power steeling thermostats.
Cooling Only:
Select a thermostat that is compatible
with a cooling system. The thermostat
should have “R”, “Y” and “G” terminals
and may also have a “C” terminal.
Cooling only with Electric Heat:
Select a thermostat that is compatible
with a cooling - electric heat system. The
thermostat should have “R”, “Y”, “W” and
“G” terminals. The thermostat may also
have a “C” terminal.