Johnson Controls A19 Series Data Sheet

A19 Series

Action on Increase

of Temperature

A19 Series

Terminal Arrangement for Single-Pole,

Double-Throw (SPDT)

a19.eps

A19ABC-24 Remote Bulb Control

A19 Series Remote Bulb Control

Description

The A19 Series Controls are single-stage temperature controls that incorporate environmentally friendly liquid-filled sensing elements.

Refer to the A19 Series Hot Water Heating

Controls Well Immersion Product Bulletin

(LIT-125025) for important product application

information.

Features

• wide temperature ranges available

• constant differential throughout the entire range

• compact enclosure

• fixed or adjustable differential available

• variety of sensing element styles

• unaffected by cross-ambient conditions

Applications

The A19 is suitable for temperature control in HVAC/R applications.

Selection Charts

A19 Series Remote Bulb Control1

Product Code Number

A19ABA-40C

A19ABC-4C SPDT 50 to 130 (10 to 55) 3-1/2 to 14 (1.9 to 8) 3/8 in. x 5 in., 8 ft. capillary WEL14A-603R Knob 170 (77)

A19ABC-24C A19ABC-36C SPDT -30 to 100 (-34 to 38) 3 to 12 (1.7 to 6.7) 3/8 in. x 4 in., 20 ft. capillary WEL14A-602R Convertible 140 (60) A19ABC-37C SPDT -30 to 100 (-34 to 38) 3 to 12 (1.7 to 6.7) 3/8 in. x 4 in., 10 ft. capillary WEL14A-602R Screwdriver slot 140 (60) A19ABC-74C SPDT -30 to 100 (-34 to 38) 3 to 12 (1.7 to 6.7) 3/8 in. x 4 in., 6 ft. capillary WEL14A-602R Screwdriver slot 140 (60)

A19AAF-12C SPDT 25 to 225 (-4 to 107) 3-1/2 (1.9) 3/8 in. x 3 in., 10 ft. capillary WEL14A-602R Screwdriver slot 275 (135)

A19AAC-4C SPDT 0 to 80 (-18 to 27) 5 (2.8) 3/8 in. x 4 in., 6 ft. capillary WEL14A-602R Screwdriver slot 140 (60) A19AAD-12C SPST

A19AAD-5C A19AAF-20C SPDT -30 to 100 (-34 to 38) 2-1/2 (1.4) 3/8 in. x 4 in., 6 ft. capillary WEL14A-602R Screwdriver slot 140 (60)

A19AAF-21C SPDT 40 to 90 (4 to 32) 1-1/2 (0.8) 3/8 in. x 5-3/4 in., 6 ft. capillary WEL14A-603R Screwdriver slot 140 (60)

A19ACA-14C SPST

A19ACA-15C SPST

A19ADB-1C SPST

A19ADB-38C SPST

1. Specify the control model code number, packing nut code number (if required), and bulb well code number (if required).

2. Replaces White-Rodgers® 1609-101

3. Replaces White-Rodgers 1609-12, -13; Ranco® 010-1408, -1409, - 1410, -1490, 060-110; Honeywell® L6018C-1006, L6021A-1005, T675A-1011, -1508, -1516,

-1821, T4301A-1008, T6031A-1011, T6031A-1029

4. Case-Compensated

The performance specifications are nomina l and con form to accep table ind ustry stand ards. For applicati ons at con ditions be yond these specification s, consult th Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2015 Johnson Controls, Inc.

Switch Action

Single-Pole, Single-Throw (SPST) Open low

SPDT -30 to 100 (-34 to 38) 3 to 12 (1.7 to 6.7) 3/8 in. x 4 in., 8 ft. capillary WEL14A-602R Convertible 140 (60)

Open low

SPST Open low

Open low

Open high

Single-Stage Electromechanical Temperature Controls

Range °F (°C)

Differential F° (C°)

Bulb and Capillary

Bulb Well No. (Order

Code No. LIT-1927010

Range Adjuster

Max. Bulb Temp. °F (°C)

Separately)

Adjustable Differential (Wide Range)

-30 to 100 (-34 to 38) 3 to 12 (1.7 to 6.7) 3/8 in. x 4 in., 6 ft. capillary WEL14A-602R Screwdriver Slot 140 (60)

Fixed Differential

Fixed Differential (Case Compensated)

-30 to 50 (-34 to 10) 2-1/2 (1.4) 3/8 in. x 4 in., 7 ft. capillary WEL14A-602R Screwdriver slot 140 (60)

Fixed Differential (Close)

30 to 50 (-1 to 10) (Bulk Milk Cooler)

2-1/2 (1.4) 3/8 in. x 2-5/8 in.,

6 ft. capillary

WEL16A-601R Screwdriver slot 190 (88)

Manual Reset

-30 to 100 (-34 to 38)

100 to 240 (38 to 116)

Manual reset 3/8 in. x 4 in.

Manual reset 3/8 in. x 3-1/2 in.

Manual reset 3/8 in. x 4 in.

6 ft capillary

10 ft capillary

6 ft capillary

WEL14A-602R Screwdriver slot 140 (60)

WEL14A-602R Knob 290 (143)

WEL14A-602R Screwdriver slot 290 (143)

R-19

Single-Stage Electromechanical Temperature Controls

A19 Series Remote Bulb Control (Continued)

Replacement Parts

Product Code Number Description

CVR28A-617R Concealed adjustment cover CVR28A-618R Visible scale cover KNB20A-602R Replacement Knob Kit

Accessories

A packing nut is available for closed tank application. Specify the code number FTG13A-600R.

Bulb wells (WEL14A Series) are available for liquid immersion applications. See the selection chart or the Bulb Wells Catalog Page (LIT-1922135).

Technical Specifications

Electrical Ratings

Motor Ratings VAC 120 208 240

Wide Range – Adjustable Differential

AC Full Load A 16.0 9.2 8.0 AC Locked Rotor A 96.0 55.2 48.0

Non-Inductive A Pilot Duty 125 VA, 24 to 600 VAC

AC Full Load A 6.0 3.4 3.0 AC Locked Rotor A 36.0 20.4 18.0 Non-Inductive A 10 A, 24 to 277 VAC Pilot Duty 125 VA, 24 to 277 VAC

AC Full Load A 16.0 9.2 8.0 AC Locked Rotor A 96.0 55.2 48.0

Non-Inductive A Pilot Duty 125 VA, 24 to 600 VAC

AC Full Load A 6.0 3.4 3.0 AC Locked Rotor A 36.0 20.4 18.0 Non-Inductive A 10 A, 24 to 277 VAC Pilot Duty 125 VA, 24 to 277 VAC

AC Full Load A 16.0 9.2 8.0 AC Locked Rotor A 96.0 55.2 48.0 Non-Inductive A 16.0 9.2 8.0 Pilot Duty 125 VA, 24 to 600 VAC

1. SPST and N.O. contact of SPDT control; SPDT N.C. contact- 16 amperes 120 to 277 VAC

22 A, 120 to 277 VAC

Fixed Differential and Close Differential

Case Compensated – Fixed Differential A19AAC-4

22 A, 120 to 277 VAC

A19AAD-12

Manual Reset

The performance specifications are no minal and co nform t o acceptab le ind ustry standar ds. For appl ications at condition s beyond these specifica tions, consult th Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2015 Johnson Controls, Inc.

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