©Johnstone Supply eCatalog 216

REFRIGERATION & AIR CONDITIONING Commercial Pressure Controls

Approximate Low Pressure Settings for Typical Applications

-------------------------------------------Pressure — PSIG -------------------------------------------

--Approximate Temp °F--

----------R-12 ----------

---------- R-22 ----------

---------- R-502 ----------

---------- R-134A ----------

Application

Cutout

Cut-in

Cutout

Cut-in

Cutout

Cut-in

Cutout

Cut-in

Cutout

Cut-in

Walk In, Defrost Cycle Reach In, Defrost Cycle

9

37 39 38 45 37 38 28 38

14 19 13 16 15 17 11 10 (7)

34 36 35 42 34 35 27 35

32 40 30 35 34 37 27 26

64 68 66 77 64 66 53 66 17

40 48 38 44 42 45 35 33

75 78 77 89 75 77 63 77 24

12 16 10 14 12 15

32 36 34 40 32 34 25 34

20

Vegetable Display, Defrost Cycle

7

Vegetable Display Case — Open Type 12

Beverage Cooler, Blower Dry Type Meat Display Case — Defrost Cycle Meat Display Case — Open Type

11 19

4 2

8

Dairy Case — Open Type Frozen Food — Open Type

16 10

-32

-9

5

4

8

3

Source: Johnson Controls, Inc.

Low Pressure Controls • Automatic reset operation

• B10-513 , B10-514 suitable for R12, R134a and R500 • B13-243 universal control suitable for use with all CFC, HCFC and HFC refrigerants

• 120/240VAC — 24 FLA; 144 LRA; maximum resistive load 24A; maximum pilot duty 720VA • B10-528 specifically for use with R22 and R502

Each

Order # Mfg. #

Switch Action

Pressure Range PSIG Diff. PSIG Conn. Size

B10-513 B10-514

O10-1401 SPST Open Low 12" to 50 O10-1402 SPST Open Low 12" to 50

5 to 35 Male Flare

279.00 269.00 235.00 285.00 299.00 275.00

5 to 35 36" Cap. w/ Flare Nut 10 to 40 36" Cap. w/ Flare Nut 5 to 38 36" Cap. w/ Flare Nut

B10-528 O10-1483 SPST Open Low 10" to 100

B13-243 B14-263 B14-265

O16-624 SPST Open Low 12" to 80

O16-107 SPDT O16-527 SPDT

10" to 100 10" to 100

10 to 40 —

10 to 40 36" Cap. w/ Flare Nut

Low Pressure Controls • For air conditioning and refrigeration applications • Visible snap action contacts with manual trip “Finger Tip Test” for contact operation • Wide screen with large readable scale • Adjustable by standard refrigeration wrench • Suitable for most refrigerants

• Automatic reset operation • 120/240VAC — 24 FLA; 144 LRA; maximum resistance load 24A; maximum pilot duty 720VA Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Low Pressure Diff. PSIG

High Range PSIG

Fitting Size

Capillary Length

Reset Type Switch Action

Pressure Range PSIG

Diff. PSIG Conn. Size

Low Range PSIG}

Each

Length

Order #

Mfg. #

Application

B14-738

060-5233 Low Pressure Auto SPDT

6" to 108 10 to 58 36" Cap. w/ Flare Nut 6" to 108 10 to 58 6" to 108 36" 1/4" 36"

205.00

B14-739 060-5237 Low Pressure Auto SPST Open Low 6" to 72.5 6 to 30 1/4" Male Flare Conn. 6" to 72.5 6 to 30 6" to 72.5 — 1/4" Flare 179.00 B14-740 060-5235 Low Pressure Auto SPST Open Low 6" to 72.5 6 to 30 36" Cap. w/ Flare Nut 6" to 72.5 6 to 30 6" to 72.5 36" 1/4" 36" 205.00

Lube Oil Protection Controls • Protects against major compressor breakdown by guarding against low lube oil pressure • Built-in time delay switch avoids nuisance shutdowns on short pressure drops during the running cycle • Manual reset operation • Ambient compensated for uniform time delay

• 120/240VAC, maximum pilot duty 750VA • B15-404 is for Copeland applications • B15-406 is for Carlyle applications • B15-405 is for Bitzer applications Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Each

Fig. Order #

Mfg. #

Switch Action Pressure Range PSIG Conn. Size

B11-774 B11-775

A A B B B

P28AA-1C P28AA-17C

— —

8 to 70 8 to 70

36" Cap. w/Flare Nut 36" Cap. w/Flare Nut

749.00 749.00 1045.00 629.00 609.00 615.00

— L51-068

P145NCB-12C SPST P545NCB-22C — P545NCB-25C — P545NCB-82C —

—

—

B15-404 B15-405 B15-406

12.75 Fixed

40" Cable w/Copeland Sensor 48" Cable w/Bitzer Sensor 40" Cable w/Carlyle Sensor

A

B

10 Fixed 7 Fixed

1305

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