Product Overview

The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls office.
Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2009 Johnson Controls, Inc.
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P266 Series Single-Phase Condenser Fan Speed Control
Code No. LIT-1900595
Issued June 24, 2009
P266 Single-Phase Condenser
Fan Speed Control
Description
The P266 Single-Phase Condenser Fan
Speed Control is a cost-effective, weather-
resistant, durable motor speed control. The
P266 control is designed for approved single-
phase, Permanent Split-Capacitor (PSC)
motors commonly used in a wide variety of
refrigeration and air conditioning condenser
fan applications.
The P266 Series controls are designed to
replace the Johnson Controls® P66 Series
and P215 Series fan speed controls, providing
additional features and flexibility, greater
energy efficiency, and longer motor life in a
compact, rugged, weather-resistant package.
P266 models are available for 208 to 240 VAC
and 440 to 575 VAC range applications. P266
controls have current ratings from 4 to 12 A
depending on the voltage and model.
Some P266 models provide optional control of
up to three auxiliary (fixed-speed) fans or fan
stages. Also, some models provide two
additional high-voltage triacs, which allow you
to split the source power to the main and
auxiliary windings, and connect a low-speed
capacitor to increase efficiency at low speed
operation.
Refer to the P266 Series Single-Phase
Condenser Fan Speed Control Product
Bulletin (LIT-12011534) for important product
application information.
Features and Benefits
• One or two durable, accurate, stainless
steel, remote-mount pressure transducers
resist damage from physical shock,
vibration, pressure pulsation, and extreme
environmental conditions; eliminate
capillary tube breaks and greatly reduce
refrigerant loss potential; provide 1% total
error band; and are applicable to single
and multi-circuit condenser applications.
• Available in 208 to 240 VAC range (8 or 12
A) or 460-575 VAC range (4 A) at 50 or 60
Hz provides efficient PSC motor speed
control for a wide range of condenser fan
applications.
• Wide, adjustable pressure throttling range
enables application flexibility and allows
you to tune condenser operation to specific
pressure ranges and ambient
environments.
• Optional auxiliary fan control provides
control of up to three fixed-speed fans or
fan stages in conjunction with the speed
controlled fan or fan stage.
• Optional low-speed capacitor mode
enables cooler, quieter, and more efficient
fan motor operation at low speeds.
• NEMA 3R, (IP54) enclosure with integral
metal heat-sink and stand-off mounting
feet provides a rugged weather-resistant
fan control with good heat dissipation and
a sturdy mounting base.
Application
The P266 Single-Phase Condenser Fan
Speed Control, in conjunction with a P266
Electronic Pressure Transducer, is a
pressure-actuated, digital electronic motor
speed control designed for (approved) single-
phase, PSC motors used in a wide variety of
Heating, Ventilation, Air Conditioning, and
Refrigeration (HVACR) applications.
The P266 fan speed control regulates supply
voltage to the fan motor in response to the
condenser refrigerant pressure and maintains
the appropriate fan speed (air movement)
through the condenser regardless of the
ambient temperature or air delivery variations.
The P266 control is housed in a NEMA 3R
(IP54) rainproof enclosure for outdoor
applications.
The P266 fan speed control is an energy
efficient and effective alternative to On/Off
fan-cycling controls, multiple-speed motors,
temperature fan-speed controls, modulating
air-damper systems, condenser flood-back
systems, and other condenser pressure
control methods.
Some typical fan speed control applications
include:
• computer room air conditioning
• commercial refrigeration
• commercial air conditioning
Repair Information
If the P266 Series Single-Phase Condenser
Fan Speed Control fails to operate within its
specifications, replace the unit. For a
replacement condenser fan speed control,
contact the nearest Johnson Controls
representative.
Selection Charts
P266 Fan Speed Control Model and Kit Product Code Numbers, Descriptions, and Details
Product Code
Number
Description Transducer
Model Included
in Kit
Voltage
Range
(VAC)
Maximum
Output
Amperes
High
VAC
Triacs
Available
Auxiliary
Fan
Control
Circuits
P266AAA-100C
1
P266 Fan Speed Control (only) N/A 208 to 240 8 3 0
P266ABA-100C
1
P266 Fan Speed Control (only) N/A 208 to 240 8 3 3
P266ACA-100C
1
P266 Fan Speed Control (only) N/A 208 to 240 8 1 0
P266ADA-100C
1
P266 Fan Speed Control (only) N/A 208 to 240 8 1 3
P266BGA-100C
1
P266 Fan Speed Control (only) N/A 440 to 575 4 2 0
P266BHA-100C
1
P266 Fan Speed Control (only) N/A 440 to 575 4 2 3
P266BCA-100C
1
P266 Fan Speed Control (only) N/A 440 to 575 4 1 0
P266BDA-100C
1
P266 Fan Speed Control (only) N/A 440 to 575 4 1 3