Johnson Controls P70 20 Inch High Pressure Control Owner’s Manual

: June 22, 2024
: Johnson Controls

Table of Contents

Johnson Controls P70 20 Inch High Pressure Control
Product Information
Product Usage Instructions
Description
Features
Documents / Resources

Johnson Controls P70 20 Inch High Pressure Control

Product Information

Specifications

Product : Standard Electromechanical Pressure Controls
Code : LIT-1900171
Series : P70, P72, and P170
Applications : High Pressure Cut-out, Head-pressure Control, Condenser Fan Cycling
Compatible Refrigerants : Most common refrigerants, including Ammonia
Electrical Ratings : Various, up to 208-240V single-phase and 208-220V 3-phase motors
Enclosure : NEMA 1 standard on most models

Product Usage Instructions

Installation

Ensure power is switched off before installation.
Mount the pressure control securely in the desired location.
Connect the pressure control to the appropriate electrical supply.

Settings Adjustment

Refer to the product manual for specific pressure range and differential settings.
Use appropriate tools to adjust the pressure settings as needed.

Maintenance

Regularly check for any signs of wear or damage.
Clean the pressure control periodically to ensure proper functioning.

FAQ

Q: Can this pressure control be used with corrosive fluids?
- A: No, these controls are designed for non-corrosive fluid applications only.
Q: What is the maximum working pressure for the condenser fan cycling controls?
- A: The maximum working pressure is 475 psig (3,275 kPa).
Q: Are there manual reset lockout options available?
- A: Yes, certain models like P70DA-1C1 and P170DA-1C have manual reset lockout features.

Standard Electromechanical Pressure Controls
Code No. LIT-1900171
P70, P72, and P170 Series Controls for High Pressure Applications

Description

The P70, P72, and P170 Controls for high pressure applications are designed primarily for high pressure cut-out control, head-pressure control, and condenser fan cycling control on commercial refrigeration and air conditioning applications.

Controls are available in several pressure ranges and are compatible with most common refrigerants. They may also be used on other non-corrosive fluid applications. Ammonia compatible models are also available.

Several different electrical ratings and switch configurations are available. The P72 models provide direct control of 208-240 volt single-phase motors up to 3 horsepower, and 208-220 volt 3-phase motors up to 5 horsepower.

Refer to the P70, P72, and P170 Series Controls for High Pressure Applications Product/Technical Bulletin (LIT-125454) for important product application information.

Features

all-steel case and cover provides long lasting, rugged protection for internal components
sight-set calibrated pressure adjustment displays a visible pressure scale, fully adjustable through the range without removing the cover (on NEMA 1 enclosure models)
manual reset lockout option provides trip-free lockout that cannot be overridden or reset until pressure returns to specified level
variety of available pressure connection styles allows greater flexibility when mounting control and adapting pressure connections to field application requirements

Applications

P70C, P70D P170C and P170D models with single-pole, single-throw (SPST) Open High switch action are the most popular models, and are typically used for high-pressure cutout. The Cmodels are automatic reset. The D models have a manual reset lockout mechanism. Some P70C, P70D P170C and P170D models are UL Listed as refrigeration pressure limiting controls.
P70A and P170A models are available with SPST Open Low switch action, and typically are used for condenser fan cycling control.
P70 and P170 models with single-pole, double-throw (SPDT), or four-wire, two-circuit switch action allow users to install alarm devices or other control circuits.

P70CA-3 High Pressure Cutout Control

P72 models have a double-pole, single-throw (DPST) switch with load-carrying contacts that can provide direct control of 208-240 V single-phase motors up to 3 horsepower, and 208-220 V
3- phase motors up to 5 horsepower. See the DPST Electrical Ratings (P72A, B, C, and D Models) that follow.

NEMA 1 enclosures are standard on most models.

Repair Information
If the P70, P72, and P170 Series Controls for High Pressure Applications fail to operate within their specifications, replace the units. For a replacement control, contact the nearest Johnson Controls® representative.

Selection Chart (Part 1 of 2)

Product Code

Number

| Switch

Action

| Range

psi (kPa)

| Differential

psi (kPa)

| Pressure

Connection

| Max. Working

Pressure

---|---|---|---|---|---
Condenser Fan Cycling Controls (for Non-Corrosive Refrigerants)
P70AA- 118C| SPST Open Low| 100 to 400

(690 to 2,758)

| Minimum 35 (241) Maximum 200 (1,379)| 36 in. Capillary

with 1/4 in. Flare Nut

| 475 psig

(3,275 kPa)

(345 to 3,448)

| Minimum 60 (414); Maximum 150 (1,034)| 1/4 in. External Flare Connector| 525 psig

(3,620 kPa)

P70CA- 3C 1| 36 in. Capillary

with 1/4 in. Flare Nut

P70DA- 1C 1| Manual Reset Lockout
P70KA- 1C| Four-wire, Two-circuit

Line-M1 Close High Line-M2 Open High

Line-M1 Close High Line-M2 Open High

ALCO® Cross Reference

Temperature Controls

Product| #| Range| Differential| Switch| Capillary| Bulb| Cover| Notes
---|---|---|---|---|---|---|---|---
ALCO| TF115-S2 AE00| -20/60F| 3/30F ADJ| SPDT| NONE| COILED| NEMA 1|
ALCO| TSI-X2E 30/40| -20/60F| 3/30F ADJ| SPDT| NONE| COILED| NEMA 1|
PENN| A19BBC- 2C| – 30/100F| 3/12F ADJ| SPDT| None| Coiled| NEMA 1| (1)
PENN| A19BBC- 6C| – 30/100F| 3/12F ADJ| SPDT| None| Coiled| NEMA 1| (1)(2)
ALCO| TF115-S3 AE00| 15/95F| 3/30F ADJ| SPDT| NONE| COILED| NEMA 1|
ALCO| TSI-X3E 64/48| 15/95F| 3/30F ADJ| SPDT| NONE| COILED| NEMA 1|
PENN| A19BBC- 2C| – 30/100F| 3/12F ADJ| SPDT| None| Coiled| NEMA 1| (1)
PENN| A19BBC- 6C| – 30/100F| 3/12F ADJ| SPDT| None| Coiled| NEMA 1| (1)(2)
ALCO| TF115-S4 AF10| -20/95F| 5/35F ADJ| SPDT| 120″| 3/8×2-3/4| NEMA 1|
ALCO| TSI-X4F 32/41| -20/95F| 5/35F ADJ| SPDT| 120″| 3/8×2-3/4| NEMA 1|
PENN| A19ABC- 24C| – 30/100F| 3/12F ADJ| SPDT| 96″| 3/8×4| NEMA 1| (1)
PENN| A19ABC- 36C| – 30/100F| 3/12F ADJ| SPDT| 240″| 3/8×4| NEMA 1| (1)

Notes

Can use A419ABC-1, -30/212F range, 1/30F differential, SPDT, 78” lead, 0.25 x 2 PTC sensor, NEMA 1.
Knob assembly/concealed adjustment packed separately.

Pressure Controls

Product| #| Range| Differential| Switch| Capillary| Connection| Cover| Notes
---|---|---|---|---|---|---|---|---
ALCO| FF115-S1 BAK| 24″/42| 3/30 ADJ| SPDT| 36″| w/ Flare| NEMA 1|
ALCO| PS1-X1K 7/15| 24″/42| 3/30 ADJ| SPDT| 36″| w/ Flare| NEMA 1
PENN| P70AB- 12C| 12″/80| 5/35 ADJ| Open LO| 36″| w/ Flare| NEMA 1
ALCO| FF115-S3 BAK| 15″/100| 7/70 ADJ| SPDT| 36″| w/ Flare| NEMA 1|
ALCO| PS1-X3K 50/65| 15″/100| 7/70 ADJ| SPDT| 36″| w/ Flare| NEMA 1
PENN| P70AB- 2C| 20″/100| 7/50 ADJ| Open LO| 36″| w/ Flare| NEMA 1
ALCO| FF115-S3 BAA| 15″/100| 7/70 ADJ| SPDT| None| External Flare| NEMA 1|
ALCO| PS1-X3A 50/65| 15″/100| 7/70 ADJ| SPDT| None| External Flare| NEMA 1
PENN| P170AB- 2C| 20″/100| 7/50 ADJ| Open LO| None| External Flare| NEMA 1
ALCO| FF115-S4 BAK| 15/290| 15/145 ADJ| SPDT| 36″| w/ Flare| NEMA 1|
ALCO| PS1-X4K 115/145| 15/290| 15/145 ADJ| SPDT| 36″| w/ Flare| NEMA 1|
PENN| P70AA- 2C| 0/150| 12/40 ADJ| Open LO| 36″| w/ Flare| NEMA 1|
PENN| P70AA- 3C| 100/300| 25/75 ADJ| Open LO| 36″| w/ Flare| NEMA 1|
ALCO| FF115-S5 BAK| 90/450| 30/220| SPDT| 36″| w/ Flare| NEMA 1|
ALCO| PS1-X5K 230/290| 90/450| 30/220| SPDT| 36″| w/ Flare| NEMA 1|
PENN| P70AA- 118C| 100/400| 35/200| Open LO| 36″| w/ Flare| NEMA 1|
PENN| P70CA- 3C| 50/450| 60/150| Open HI| 36″| w/ Flare| NEMA 1|
ALCO| FF115-S5 BAA| 90/450| 30/220| SPDT| None| External Flare| NEMA 1|
ALCO| PS1-X5A 140/280| 90/450| 30/220| SPDT| None| External Flare| NEMA 1|
PENN| P170AA- 118C| 100/400| 35/200| Open LO| None| External Flare| NEMA 1|
PENN| P170CA- 3C| 50/450| 60/150| Open HI| None| External Flare| NEMA 1|
ALCO| FF115-S5 BRK| 90/450| Manual| SPDT| 36″| w/ Flare| NEMA 1|
ALCO| PS1-Y5K 230/290| 90/450| Manual| SPDT| 36″| w/ Flare| NEMA 1|
PENN| P70DA- 1C| 50/450| Manual| Open HI| 36″| w/ Flare| NEMA 1|
PENN| P70KA- 1C| 50/450| Manual| M- Block| 36″| w/ Flare| NEMA 1| (3)
ALCO| FF115-S5 BRA| 90/450| Manual| SPDT| None| External Flare| NEMA 1|
ALCO| PS1-Y5A 330/390| 90/450| Manual| SPDT| None| External Flare| NEMA 1
PENN| P170DA- 1C| 50/450| Manual| Open HI| None| External Flare| NEMA 1

Notes
(3) Main opens HI, auxilliary opens LO (primarily used for alarm circuit).

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. © 2015 Johnson Controls, Inc. www.johnsoncontrols.com

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Documents / Resources

| Johnson Controls P70 20 Inch High Pressure Control [pdf] Owner's Manual
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