Telco Envirotrols Inc.

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P128 and P145 Series

Lube Oil Pressure Controls

Description

The P128 and P145 series controls provide dependable low pressure lube oil cut-out for pressure lubricated refrigeration compressors.  The P128 Series offer adjustable range settings.

Teh P128 and P145 controls feature a 1/4 in. male flare pressure connection which may be used with a refrigerant hose or cap tube such as SEC99 UltraCap.

Applications

Use these controls for lube oil cutout on hermetic and semi-hermetic compressors used in commercial air-conditioning and commercial and industrial refrigeration systems.

Features

  • ambient compensated time delay relay
  • trip-free manual reset
  • industry standard
  • P128 is fully adjustable throughout its range
  • P145 is factory set to compressor manufacturer's specifications

Accessories

Some controls are supplied less mounting brackets.  If brackets are required, order kit number BKT38A-600R, which contains five 271-51 angle mounting brackets with screws; or BKT38A-601R which contains one mounting bracket with screws.

Technical Specifications

Pressure controls P128 and P145 are designed to be used with SEC99 UltraCap.  Product specifications fro P128 are the same as P28 model, refer to P28 Series Lube Oil Pressure Cutout Control; and product specifications for P145 are the same as P45 model, refer to P45 Series Lube Oil Pressure Cutout Control (With Time Delay).

Selection Chart

Code Number Time Delay Heater Circuit VAC Type of Reset Range1 psig (kPa) Refrigerant (R) Pressure Connection
Adjustable Non-adjustable
P128AA-1C1 90 sec 120/240 Manual 8 to 70

(55 to 483)

- Non-Corrosive 1/4 in. Male Flare
P128AA-2C2 60 sec 120/240 Manual 8 to 70

(55 to 483)

  Non-Corrosive 1/4 in. Male Flare
P128AA-17C3 120 sec 120/240 Manual 8 to 70

(55 to 483)

  Non-Corrosive 1/4 in. Male Flare
P145NCA-12C4 120 sec 120/240 Manual   Factory Set 9 (62) Non-Corrosive 1/4 in. Male Flare
P145NCA-82C5 45 sec 120/240 Manual   Factory Set 6.5 (45) Non-Corrosive 1/4 in. Male Flare
P145NCB-12C6 120 sec 120/240 Manual   Factory Set 9 (62) Non-Corrosive 1/4 in. Male Flare
P145NCB-82C7 45 sec 120/240 Manual   Factory Set 6.5 (45) Non-Corrosive 1/4 in. Male Flare

1.    Replacement for P28AA-1* Replaces Ranco P30-3701

2.    Replacement for P28AA-2* Replaces Ranco P30-3601

3.    Replacement for P28AA-17* Replaces Ranco P30-3801

4.    Replacement for P45NCA-12* (Copeland Model) Replaces Ranco P30-5826

5.   Replacement for P45NCA-822* (Carlyle Model)

6.    Copeland model with alarm circuit

7.    Carlyle model with alarm circuit

* SEC99 UltraCap hose must be ordered separately.

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Last modified: 05/07/08