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O
rdering Information
Table 4: Ordering Information
Series Part
Pressure
Number
Connections*
P28AA
Style 13, Style 5,
or Style 15
P128AA
Style 5
P28AN
Style 15
P28DA
Style 13
P28DN
Style 15
P28GA
Style 13
P28NA
Style 13 or Style 5
P28PA
Style 5
* Style 5 connections are 1/4 in. / 6.4 mm SAE male flare connectors (no capillary tubing). Style 13 connections are 36 in. / 914 mm
capillary tubing and 1/4 in. / 6.4 mm flare nut. Style 15 connections are 1/4 in. / 6.4 mm female National Pipe Thread connectors.
S
pecifications
Product
Power Requirements
Pressure Specifications
Pressure Switch Units
Ambient Operating Conditions
Material
Mounting
Wiring Terminal
Agency Listings
Dimensions (H x W x D)
Shipping Weight
The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these specifications,
consult the local Johnson Controls Refrigeration Application Engineering at (414) 274-5535. Johnson Controls, Inc. shall not be liable for damages
resulting from misapplication or misuse of its products.
Controls Group
507 E. Michigan Street
P.O. Box 423
Milwaukee, WI 53201
8 P—P28 and P128 Series Lube Oil Controls with Built-in Time Delay Relay Product/Technical Bulletin
Reset Type
Refrigerant
Manual
Non-corrosive
All-range
Manual
Non-corrosive
All-range
Manual
Ammonia
Manual
Non-corrosive
All-range
Manual
Ammonia
Automatic
Non-corrosive
All-range
Manual
Non-corrosive
All-range
Manual
Non-corrosive
All-range
P28 and P128 Series Lube Oil Controls with Built-in Time Delay Relay
See Tables 1 and 2.
Adjustable Cut-out Pressure Difference: 8 to 70 psi (55 to 483 kPa)*
Maximum Differential:
Maximum Working Pressure:
Maximum Overpressure:
*The time delay relay is de-energized 3 to 5 psi (21 to 34 kPa) above the cut-out scale setting.
Enclosed Dust-protected Pennswitch
32 to 104°F / 0 to 40°C
Case: 0.062 in. / 1.6 mm Galvanized Steel
Cover: 0.028 in. / 0.7 mm Cold Rolled Steel (plated and painted)
Flat Surface or with a Universal Mounting Bracket (Part No. 271-51)
Large 8-32 x 1/4 in. Binder Head Screws
UL Guide No. SDFY; File SA516**
CSA Class No. 1222 01; File LR948**
**Most models. Contact Johnson Controls for a complete listing.
5.66 x 5.32 x 2.09 in. / 144 x 135 x 53 mm
3.0 lb / 1.36 kg
Time Delay
Alarm
Relay Voltage
Terminal
120/240 VAC
No
120/240 VAC
No
120/240 VAC
No
120/240 VAC
Yes
120/240 VAC
Yes
120/240 VAC
No
24 VAC/VDC
No
24 VAC/VDC
No
70 psi (483 kPa)
250 psig (1724 kPa) on the high side
325 psi (2240 kPa) oil and low side pressure
Runlight
Terminal
No
No
No
Yes
Yes
No
No
No
FAN 125
Master Catalog
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