EMI CAC_36, Инструкция по установке, эксплуатации и обслуживанию

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Cassette Air Handler
22
EmI mICROpROCESSOR CONTROLLEd AIR HANdLER
OpERATION INSTRUCTIONS
seconds and thirty (30) seconds respec
-
tively.
The sixty (60) second post-purge timing
shall be reduced to fifteen (15) seconds
and the thirty (30) second stagger start
timing shall be reduced to seven and a half
(7.5) seconds.
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.
#2 LOUvER OSCILLATION ON/OFF
(APPliES To MoDElS CAhb24 AnD
CACb36 only)
DIP switch #2 is for Remote Thermostat
Mode only and will enable or disable lou
-
ver operation. By setting DIP switch #2 to
oN the louvers will oscillate while the fan
is on. Setting to off
will disable louver
oscillation. The louvers will remain fixed in
their last position.
#3 REMOTE FAN SpEED SELECTION
DIP switch #3 is for Remote Thermostat
Mode only and will allow the selection of
fan speed. By setting DIP switch #3 to
oN
the fan speed will be set at High. Setting to
off
the fan speed is set to Low.
#4 REMOTE THERMOSTAT OpERATION
The Cassette is capable of being controlled
though a remote thermostat or an optional
Infrared Hand Held Controller. For remote
thermostat operation set DIP switch #4 to
oN or REM STAT YES. While in Remote
Thermostat Mode, the Cassette control will
ignore all signals from the Infrared Hand
Held Controller. By setting to DIP switch
#4 to
oN
, this enables DIP switches #3
and #2. Also the clean filter time will de
-
fault to 1000 hrs.
UNIT MOUNTED KEY pAD INTERFACE
The Cassette User Interface uses Light
Emitting Diodes (LED’s) to display the
operational modes of the unit.
Figure #8
There are four (4) LED’s and one (1) Clear
filter Warning button. The Power LED
will illuminate to show the unit is on or in
stand-by awaiting commands depending
on the mode of operation. When the con
-
trol is configured for Remote Thermostat
Operation the Power LED will illuminate
constantly so long as power is applied to
the unit. When configured for the
optional
Infrared Hand Held Controller the power
LED will illuminate when the unit is in the
on Mode . When in the off Mode
the pow
-
er LED will be dark.
The Cooling LED will illuminate when the
system is operating in Cooling. The Heat
-
ing LED will illuminate when the unit is op
-
erating in Heating.
The Timer/Alarm LED will illuminate when
the unit is placed in
Sleep Timer Mode
through the optional
Infrared Hand Held
Controller. The Timer/Alarm LED will also
blink or flash different codes, indicating a
control fault or that the unit is Test Mode .
When the Clean Filter Alarm code is flash
-
ing the Timer/Alarm LED (4 blinks), push
-
ing the Clear filter Warning Button for
three (3) seconds will clear the alarm. The
control will respond with a beep to indicate
that the timer has been reset. At that time
the Cassette’s filter(s) should be removed
and cleaned.
NOTE:
When power is first applied to the
Cassette or after a power outage there is a
three (3) minute delay before the compressor
or electric heat will energize. This is to protect
the unit from short cycling.
SEqUENCE Of OpERATION