P266 Series Single-Phase Condenser Fan Speed Control Installation Instructions
11
P266 Electronic Pressure Transducers
P266 controls are designed to reference either one or
two Johnson Controls P266 Electronic Pressure
Transducers to monitor condenser pressure.
P266 transducers are specialized versions of the
P499 Series Electronic Pressure Transducers
designed for use with P266 fan speed controls. See
Table 3 for the available P266 transducer models.
Note:
On P266 control applications that use two
P266 transducers, the P266 control always references
the transducer that is sensing the highest pressure.
Refer to the
P499 Series Electronic Pressure
Transducers Product/Technical Bulletin (LIT-12011190)
for information on installing P266 transducers.
Technical Specifications
The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these
specifications, consult Johnson Controls Application Engineering at (414) 524-5535. Johnson Controls, Inc. shall not be liable for damages
resulting from misapplication or misuse of its products.
IMPORTANT:
When two P266 transducers are
connected to a P266 control, the transducers must
be the same model (product code number). Failure
to connect the same P266 transducer models to the
P266 control can result in erratic control behavior.
Table 3: P266SNR Electronic Pressure
Transducers
Product
Code
Number
Description
P266SNR-1C
Electronic Pressure Transducer:
0 to 35 bar (0 to 508 psi)
total range
with a 1/4 in. SAE Female Flare
connection and a 2 meter (3.1 ft) cable.
P266SNR-2C
Electronic Pressure Transducer:
0 to 52 bar (0 to 754 psi)
total range
with a 1/4 in. SAE Female Flare
connection and a 2 meter (3.1 ft) cable.
P266xxx-x
Product
P266xxx-x Single Phase Condenser Fan Speed Control
Input Supply Power
208-240 VAC 50/60 Hz or 480-575 VAC 50/60 Hz depending on model
(Refer to the label inside the P266 control housing cover for rated voltage range and
model-specific wiring diagram.)
Low-Voltage Power Supply
P266A and P266B Types: External 24 VAC Class 2, 20 VA Supply Transformer
P266Exx Types: Low-voltage power for P266 control is provided by an onboard
transformer.
Note:
When auxiliary fan starters are connected to P266E type controls, you must
provide an external Safety Extra-Low Voltage (SELV) AC supply to power the fan starters
(Figure 2).
Ambient Operating Conditions
Temperature:
-20 to 60
°
C (-4 to 140
°
F)
Humidity:
Up to 95% RH non-condensing; Maximum Dew Point 29
°
C (85
°
F)
Ambient Shipping and Storage
Conditions
Temperature:
-40 to 85
°
C (-40 to 185
°
F)
Humidity:
Up to 95% RH non-condensing; Maximum Dew Point 29
°
C (85
°
F)
Low-Voltage Connections
1/4 in. Quick-Connect terminals, 30 m (100 ft) maximum wiring runs
Input Transducer
P266SNR-x Pressure Transducer: 5 VDC for 0.5 to 4.5 VDC ratio metric analog signal
Enclosure Type
NEMA 3R, IP54
Case Construction
Aluminum Die Casting
Cover Construction
UV Stabilized Polycarbonate/ABS
Dimensions (HxWxD)
159 x 177 x 70 mm (6-1/4 x 7 x 2-3/4 in.)
Weight
Heaviest Model Weight: 1.0 kg (2.2 lb)
Approximate Shipping Weight: 1.2 kg (2.6 lb)
Compliance
Europe:
Mark: CE Compliant; CENELEC EN 60947-1 & 4-2;
RoHS Directive (2002/95/EC); WEEE Directive (2002/96/EC)
North America:
ETL, UL508C; cETL C22.2 No. 107.1;
FCC Compliant to CFR47, Part 15, Subpart B, Class B
Industry Canada (IC) Compliant to Canadian ICES-003, Class B limits
Australia:
C-Tick Compliant (N1813)
Summary of Contents for ACWC-180-EM-DR-LT-0-5
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