AH-Passport I/O Control Operations Manual
Mounting the Optional Sensors
L-2232 ENGLISH
5
3.
Clean the mounting surface with
isopropyl alcohol only
(test alcohol on hidden portion of surface first), then secure
the display panel to a bulkhead with the adhesive strips provided. If the adhesive strips cannot be used directly on the
bulkhead, use the plastic bulkhead adapter. The bulkhead adapter (sold separately) mounts to the bulkhead with
screws and the display panel is secured to the adapter with adhesive strips. Do not use a screw gun and do not over-
tighten screws when mounting adapter.
M
OUNTING
THE
O
PTIONAL
S
ENSORS
R
EMOTE
A
IR
S
ENSOR
Install the optional remote air sensor if the display can not be mounted in a proper location for accurately sensing room
temperature. Installing the remote air sensor overrides the display’s built-in sensor. The standard cable length for the remote air
sensor is 7 feet (2.1m).
1.
Mount the remote air sensor in the return-air stream behind the opening of the return-air grille.
2.
Plug its cable (6-pin connector) into the “ALT AIR” socket #J4 in the upper-left corner of the circuit board.
O
UTSIDE
-A
IR
T
EMPERATURE
S
ENSOR
Install the optional outside-air temperature sensor to monitor the temperature outside the cabin. Outside-air sensor cables are
available in various lengths.
1.
Mount the sensor outside but not in direct sunlight.
2.
Plug its cable into the “OAT” socket #J3.
W
ATER
-I
NLET
S
ENSOR
Plug the water-inlet sensor cable into the “SERVICE/H2O” socket #J5. Attach the sensor to the chilled water inlet on the air
handler. Ensure that sensor makes good contact with the copper pipe. DO NOT attach to rubber or plastic hose.
OPERATION
O
PERATOR
C
ONTROLS
AND
D
ISPLAY
P
ANEL
Refer to Figure 1, page 3 for the button locations and display functions listed below.
D
ISPLAY
I
NDICATORS
•
Cool Mode Indicator
- The Cool Mode LED lights when the cool-only mode is selected or when the unit is in an
Automatic Mode cooling cycle.
•
Fan Indicator
- The Fan Indicator LED lights when a manual fan speed is selected.
•
Heat Mode Indicator
- The Heat Mode LED lights when the heat-only mode is selected or when the unit is in an
Automatic Mode heating cycle.
•
Digital Display
- The 3-digit, 7-segment digital display shows inside air temperature when the control is on. It displays
the set point when either the Up or Down button is pressed. The display also indicates program information and fault
codes. When the control resumes operation after a power interruption, "888" appears in the display and all the LEDs
light for one second. This is normal
Power-On Reset
operation.
B
UTTON
F
UNCTIONS
- S
INGLE
•
Power button
- Press and release to toggle between the On and Off Modes.
•
Up button
- Press and release to display the set point. Press and hold the Up button to increase the set point. Set
point increases one degree each time the button is pressed.
•
Down button
- Press and release to display the set point. Press and hold the Down button to decrease the set point.
Set point decreases one degree each time the button is pressed.
•
Fan button
- Press to advance through the available fan settings. One through six indicates Manual Fan Speeds. One
is the lowest fan speed and six is the highest fan speed. The letter “A” displays when automatic fan operation is
selected.
NOTE
Do not staple any sensor cables when mounting.
