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Operation

7 .3 Programming the Passport Control

Read the following important points before
programming the Passport control:

• If your air-conditioning unit has a Shaded-Pole (SP)

fan motor instead of a Split-Capacitor (SC) High-
Velocity (HV) fan motor, program SP into the fan
motor type parameter before operating the Passport
control. SP units are recognizable by an overhanging
blower motor. The SC motor of an HV unit is inside
the blower, and the unit has VTD or HV as part of the
model number. Only reprogram the fan motor type
parameter if you do not have an HV blower.

• Standard air handlers come equipped with chilled-

water bypass valves. However, for “no-valve” air
handlers, the fan must be set to cycle with the fan in
programming parameter P-14. Verify that the installed
air handlers have bypass valves; if not, change
parameter P-14 to “CYC.”

Use the parameter settings to program and fine-tune
the system for the most efficient operation within an
installation and to adjust operating parameters for your
particular needs. After new values are entered and
memorized, the factory defaults are overwritten and the
new parameters become the default values.

The Passport controls have a non-volatile memory that
requires no batteries or battery backup. The Passport
control retains all operating parameters during a loss of
power. When power is restored, the Passport control
lights all indicators for one second and flashes “888” on
the display, then resumes operating according to the last
program settings.

The Passport control has factory default values stored in
permanent memory (memorized factory default settings)
that are available for recall if you have any programming
difficulties. You can restore the original factory default
parameters manually. See “DISPLAY INDICATORS”
on page 22 for a summary of the parameters, the
permitted values, and original factory default settings.

Entering Programming Mode

7 .3 .1 Entering Programming Mode

1. Place the Passport control in the OFF mode.

2. Press and hold the

Power

button approximately five

seconds. “P” appears on the display, then “P1,” then
the current setting for parameter P-1.

3. Press and release the

Fan

button to increment

through the available parameters (P-1 through P-23).

4. Use the

and

Down

buttons to adjust the selected

parameter’s settings.

If no programming is attempted for one minute, the
Passport control exits Programming mode and returns to
OFF mode.

Any programming changes made while in Programming
mode will be saved and put into operation after
exiting Programming mode and returning the Passport
control to the ON mode. If you want the programming
changes to become the new defaults, see “Setting New
Parameter Values” on page 16.

7 .3 .2 Setting New Parameter Values

To save a new parameter value as the default setting:

1. Enter Programming mode. See “Entering

Programming Mode” on page 16.

2. Adjust the desired parameter.

3. Press the

and

Down

buttons simultaneously.

The system memorizes the new setting and exits
Programming mode.