Johnson Controls P266 Series, Installation Instructions Manual

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P266 Series Single-Phase Condenser Fan Speed Control Installation Instructions 4
Setup and Adjustments
All P266 Series controls ship with factory-set default
values and mode settings. In most applications, the
default values and modes do not require field
adjustment.
If your P266 Series control application requires you to
change the value or mode settings, you must:
1. Calculate the new values and determine the new
mode settings required for your application. (See
P266 Series Control Values and Modes .)
2. Change the existing settings on the control to the
new values and modes using the P266 Series
control setup interface. (See
Setting Values and
Modes .)
P266 Series Control Setup Interface
The P266 Series control setup interface consists of a
DIP switch block with eight binary switches, a push
button switch, and a green Light-Emitting Diode (LED)
(Figure 2). You can change the factory-set default
values and modes by repositioning the DIP switches
and saving the new settings. The number of LED
flashes (in sequence) indicates which value and/or
modes that you are saving. See Table 2 for more
information about LED flash sequences, values, and
modes.
During normal operation, the green LED is on. When
you
press and hold the push button, the LED goes off
for 3 seconds then flashes two times. The LED then
goes off again for 3 seconds and flashes three times,
and continues in this pattern until seven flashes or until
you release the push button.
Each sequence of flashes indicates a value or a value
and set of mode settings. Releasing the push button
after the desired flash sequence saves the value
and/or modes that are currently set on the DIP switch
block. See Table 2 for more information.
After you complete the setup, set all of the DIP
switches to the ON position to lock out the push button
operation.
P266 Series Control Values and Modes
P266 Series controls have up to ten values and modes
(in six flash sequences) that can be changed in the
field. See Table 2 for more information about flash
sequences and the associated values and modes.
Start Voltage Value
The start voltage (VAC) is the voltage delivered by the
P266 Series control to the fan motor to run the motor at
minimum speed in your application.
The Start Voltage value is a percentage of the P266
Series control’s input voltage. Use the following
formula to calculate the Start Voltage value for your
application.
Table 1: Product Type High-Voltage Wiring Options and Voltage Ranges
Product
Type
Number Split Winding/
Three Triac with
Low-Speed
Capacitor Two Triac with
Low-Speed Capacitor Single Triac
208/240 VAC 208/240 VAC 380/460 VAC 460/575 VAC 208/240 VAC 380/460 VAC 460/575 VAC
P266AA See Figure 3A See Figure 3B -- -- See Figure 3C -- --
P266AB See Figure 3A See Figure 3B -- -- See Figure 3C -- --
P266AC -- -- -- -- See Figure 3C -- --
P266AD -- -- -- -- See Figure 3C -- --
P266BC -- -- -- -- -- -- See Figure 3C
P266BD -- -- -- -- -- -- See Figure 3C
P266BG -- -- -- See Figure 3B -- -- See Figure 3C
P266BH -- -- -- See Figure 3B -- -- See Figure 3C
P266EA See Figure 4A See Figure 4B -- -- See Figure 4C -- --
P266EB See Figure 4A See Figure 4B -- -- See Figure 4C -- --
P266EC -- -- -- -- See Figure 4C -- --
P266ED -- -- -- -- See Figure 4C -- --
P266EE -- -- -- -- See Figure 4C -- --
P266EF -- -- -- -- See Figure 4C -- --
P266CH -- -- See Figure 3B -- -- See Figure 3C