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P266 Series Single-Phase Condenser Fan Speed Control Product Bulletin 1

The P266 Series Single-Phase Condenser Fan Speed

Control is a cost-effective, weather-resistant, durable

motor speed control. The P266 Series controls are

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 Series controls are available for 208 through

575 VAC 50/60 Hz range applications. P266 Series

controls have current ratings from 4 to 12 A, depending

on the voltage and model.

Some P266 Series controls provide optional control of

up to three auxiliary (fixed-speed) fans or fan stages. In

addition, some models provide two additional

high-voltage triacs that 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.

Figure 1: P266 Series Single-Phase

Condenser Fan Speed Control

Table 1: Features and Benefits

Features 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 208/240 VAC (8 or 12 A),

380/460 VAC (4 A), or 460/575 VAC (4 A)

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.

NEMA3R, (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.

P266 Series Single-Phase Condenser Fan Speed Control

Product Bulletin

P266xxx-x

Code No. LIT-12011534

Issued August 27, 2010

Supersedes April 8, 2010

Summary of content (7 pages)

PAGE 1
P266 Series Single-Phase Condenser Fan Speed Control Product Bulletin Code No. LIT-12011534 P266xxx-x Issued August 27, 2010 Supersedes April 8, 2010 The P266 Series Single-Phase Condenser Fan Speed Control is a cost-effective, weather-resistant, durable motor speed control. The P266 Series controls are designed for approved single-phase, Permanent Split-Capacitor (PSC) motors commonly used in a wide variety of refrigeration and air conditioning condenser fan applications.
PAGE 2
Application IMPORTANT: Use this P266 Series Single-Phase Condenser Fan Speed Control only as an operating control. Where failure or malfunction of the P266 Series Fan Speed Control could lead to personal injury or property damage to the controlled equipment or other property, additional precautions must be designed into the control system.
PAGE 3
End Voltage Pressure at Sensor Figure 2: Relationship between Some P266 Series Fan Speed Control Values and Modes Split Winding Mode enables the M2 Triac on the P266 Series control, which allows you to split the motor’s main windings from the auxiliary windings (and the M1 Triac) and power the main windings with the M2 Triac. Split winding operation increases fan motor efficiency. Note: Split Winding Mode is available for only 240 VAC single-phase PSC motors that have split winding wire leads.
PAGE 4
Auxiliary Fan Overlap determines the pressure range overlap (as a percentage of the total pressure range) between the fan stages set up on the P266 Series control. The fan overlap value is equal for all auxiliary fan stages set up on the control. Increasing the Auxiliary Fan Overlap value decreases the (On/Off) cycling rate of the auxiliary fans and increases the pressure differential between auxiliary fan stages (which increases the pressure range of each auxiliary fan stage).
PAGE 5
Table 2: P266 Series Fan Speed Control Model and Kit Product Code Numbers, Descriptions, and Details (Part 2 of 3) Product Code Number Description Transducer Model Included in Kit Voltage (in VAC) Maximum Output Amperes High VAC Triacs Available Auxiliary Fan Control Circuits1 P266ABA-3K2 P266 Fan Speed Control with one P266 Pressure Transducer and one 2 m (6.
PAGE 6
Table 2: P266 Series Fan Speed Control Model and Kit Product Code Numbers, Descriptions, and Details (Part 3 of 3) Product Code Number Description Transducer Model Included in Kit Voltage (in VAC) Maximum Output Amperes High VAC Triacs Available Auxiliary Fan Control Circuits1 P266EDA-1K2 P266 Fan Speed Control with Internal Transformer and one P266 Pressure Transducer and one 2 m (6.
PAGE 7
Technical Specifications P266xxx-x Series Single Phase Condenser Fan Speed Controls Input Supply Power 208/240 VAC 50/60 Hz, 380/460 VAC 50/60 Hz, or 460/575 VAC 50/60 Hz, depending on the model (Refer to the label inside the P266 Series control housing cover for rated voltage range and model-specific wiring diagram.) Short Circuit Current Rating Suitable For Use On A Circuit Capable Of Delivering Not More Than 5,000 rms Symmetrical Amperes, 600 Volts Maximum When Protected By Class H Fuses.