CONTROLLER PROGRAMMING MENU
1)
Make sure the unit has
power.
2)
Press the power button
“OFF”.
3)
Press the following buttons in sequence
“
S-U-D-
S”
(
S
elect
—
U
p arrow
—
D
own arrow
—
S
elect)
4)
The display will begin flashing P1 and a number.
If there is no display, repeat the sequence,
making sure the unit has power, but is turned OFF.
5)
To adjust any program feature, press the
ARROW UP
▲
or
ARROW DOWN
▼
button
until the desired value is displayed.
6)
Use the “
MODE
” button to scroll through the programmable settings P1 through P16.
7)
If no buttons are pressed, the display will then return to the “
OFF
” position after
about 50 seconds.
PROGRAM SETTINGS
P1
—
High Fan Speed Limit Setting. 56 - 85
P2
—
Low Fan Speed Limit Setting, 30 - 55
P4
—
Temperature Sensor Calibration, +/- 10°
P10
—
Temperature Display, °F or °C
P13
—
Supply Fan Operation, Cycling or Continuous
P1, P2
- To adjust fan speed settings, P1 represents the high fan speed parameter, while
P2 represents the low fan speed parameter. When using nozzle kits, discharge duct
adapters and evaporator plenums, setting P1 to 85 will help to avoid freeze ups.
P4
- Adjust the P4 setting to match the actual INSIDE room temperature, if needed.
P10
- Use this parameter to display temperatures in the desired units.
P13
- To cycle the evaporator fan with the compressor, access code P-13. Press the up or
down button to switch to “
CYC
”, which means cycle the fan with the compressor. The
factory default setting is “
CON
”, which means continuous fan operation.
8)
Press
POWER
—
you should see an alphanumeric code.
Press
POWER
and the unit will start at the new settings.
18
FAN SPEED
—
The operator can select between
AUTO or MANUAL
fan speed
control. Pressing the
FAN SPEED
button will switch speed from
AUTO to MANU
AL.
In
MANUAL
mode, pressing the
FAN SPEED
button will change fan speed from low
to high. In
AUTO
mode, the fan speed is controlled automatically. In cooling mode,
the controller automatically adjusts the fan speed to high, and as the inside tempera-
ture approaches the set point, the fan speed will reduce. In heat mode, the fan speed
adjusts from low to high as the temperature reaches the set point
TEMP SELECT
—
Allows the operator to view the controller temperatures
INSIDE
= return air temperature,
DISCHARGE
= supply air temperature,
SET POINT
can be seen and adjusted by pressing
▲
or
▼
.
Summary of Contents for 2OACH Series
Page 26: ...24 PIPING SCHEMATIC...
Page 27: ...25 WIRING SCHEMATIC FOR 2OACH12 18 and 24...
Page 28: ...26 WIRING SCHEMATIC FOR 2OACH3612...
Page 29: ...27 WIRING SCHEMATIC FOR 2OACH6012 DISCHARGE TEMP SENSOR...
Page 30: ...THREE PHASE MONITOR 28...
Page 31: ...29 WIRING SCHEMATIC FOR 2OACH3632...
Page 32: ...30 WIRING SCHEMATIC FOR 2OACH3634...
Page 33: ...31 WIRING SCHEMATIC FOR 2OACH6032...