Brochure
Table Of Contents
- Refrigeration Products Catalog, PUBL-5510
- Product Catagories
- Table of Contents
- Code Number Index
- Single-Stage Electromechanical Temperature Controls
- A11 Series Low Temperature Cutout Controls
- A19 Series Remote Bulb Control
- A19 Series High Range Temperature Control
- A19 Series Thermostat for Crop Drying
- A19 Series Hot Water Temperature Control (Well Immersion)
- A19 Temperature Control Less Enclosure (SPDT, Close Differential
- A19 Series Thermostat for Hazardous Locations
- A19 Series Coiled Bulb Space Thermostat
- A19 Thermostat for Portable Heaters (Chain Mount and Drop Cord Electrical Connection)
- A19 Thermostat for Portable Cooling Applications (Chain Mount and Drop Cord Electrical Connection)
- A19 Series Automatic Changeover with Strap-On Mounting
- A19D Series Surface Mounted Temperature Control
- A19 Flange Mounted Duct Thermostat
- A19 Series Fan or Cutout Control (Liquid Expansion Bulb)
- A19ANC-1 Temperature Control with Rainproof Enclosure
- A19 Agricultural/Industrial Thermostat with NEMA 4X Enclosure
- A19 Industrial Thermostat (Watertight and Dusttight)
- A19 Temperature Control with NEMA 4X Enclosure (Remote Bulb)
- A19 Water Chiller Control with Locked Cut-Out/Adjustable Cut-In
- A19 Defrost Duration and Fan Delay Control
- A25 Series Warm Air Limit Control with Manual Reset
- A70 Series Four-Wire, Two-Circuit Temperature Control
- A72 Series Two-Pole Heavy Duty Temperature Controls (Adjustable Differential)
- A72 Series Cooling Tower or Evaporative Condenser Controls (Single-Stage Temperature Control with Outdoor Enclosure)
- A72AA Coiled Bulb Space Thermostat (Cooling)
- Single-Stage Electronic Temperature Controls
- A421 Series Electronic Temperature Controls
- A421 Series Electronic Temperature Controls with Integral Power Cord
- A421 Series Electronic Temperature Controls with Off-Cycle Defrost
- A421 Series Electronic Temperature Controls with Integral Cycle Timer
- MR Series Defrost Control Modules
- MR4PMUHV Electronic Temperature/Defrost Control with Relay Pack
- Multi-Stage Electromechanical Temperature Controls
- A28 Series Two-Stage Temperature Control
- A28 Series Two-Stage Flange Mounted Duct Thermostat
- A28 Two-Stage Industrial Thermostat (Watertight and Dusttight)
- A28 Two-Stage Temperature Control with Weatherproof Enclosure
- A28 Two-Stage Agricultural Thermostat with NEMA 4X Enclosure
- A36 Series Four-Stage Remote Bulb Thermostats
- S26 Series Switching Subbase
- T22/T25/T26 Series Line Voltage Wall Thermostat (Heating, Cooling, or Heating and Cooling)
- Typical Wiring Diagrams and Electrical Ratings for Line Voltage Thermostats
- T23 Series Fan Coil Thermostat (with Fan and System Selectors)
- T28 Series Fan Coil Thermostat (with or without Fan Selector Switches)
- T46 Series Fan Coil Thermostat
- Multi-Stage Electronic Temperature Controls
- Temperature Control Sensors and Accessories
- Standard Electromechanical Pressure Controls
- P10 Series Low Pressure Control
- P20 Series Air Conditioning/Pressure Cutout Control
- P29 Series Low Pressure Control with Time Delay
- P47 Series Steam Pressure Limit Control
- P67 Series Low Pressure Control
- P70, P72 Approximate Low Pressure Settings for Typical Applications
- P70, P72, and P170 Series Controls for Low Pressure Applications
- P70, P72, and P170 Series Controls for High Pressure Applications
- P70, P72, and P170 Series Controls for Dual Pressure Applications
- Single-Stage Electronic Pressure Controls
- Electromechanical Lube Oil and Differential Pressure Controls
- Electronic Lube Oil and Differential Pressure Controls
- Pressure Sensors and Accessories
- Refrigerant Sensors/Monitors
- Liquid Level and Flow Controls
- Motor Speed Controls
- Valves and Valve Accessories
- V43/V243 Series Pressure-Actuated Water-Regulating Valves
- V46 Series Pressure Actuated Water Regulating Valve
- V46N Series Reverse Acting Valve
- V46 Series Valve Sizing Information-90% Open Method
- V46 Series Valve Dimensions
- V47 Series Temperature Actuated Modulating Valve
- V47N Series Reverse Acting Valve
- V48 Series Three-Way Water Regulating Valve
- V146 Series Two-Way Pressure-Actuated Water-Regulating Valves
- V148 Series Three-Way Pressure-Actuated Water-Regulating Valves
- V246 Series Two-Way Pressure-Actuated Water-Regulating Valves for High-Pressure Refrigerants
- V248 Series Three-Way Pressure-Actuated Water-Regulating Valves for High-Pressure Refrigerants
- STT Water Valve Renewal Kit for V46, V47, and V48 Series Valves
- Companion Flanges and Gaskets for V43, V46, and V47 Series Valves
- Relays and Transformers
- System 450 Control Series
- System 450™ Series Modular Controls
- System 450™ Series Control Module with Network Communications
- System 450™ Reset Control Modules with Real-Time Clock and Relay Output
- System 450™ Control Modules with Analog Output
- System 450™ Control Modules with Relay Output
- System 450™ Control Module with Hybrid Analog Output
- System 450™ Expansion Modules with Analog Output
- System 450™ Expansion Modules with Relay Output
- System 450™ Power Module
- System 450™ Compatible Sensors, Transducers, and Accessories
- Cross-Reference
- HVACR Product Offerings
- Sales Contact Information
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
R-30
A19D Series Surface Mounted Temperature Controls
Description
The A19D Series Surface Mounted
Temperature Controls are reliable, durable
On/Off temperature controls with line-voltage
single-pole, double-throw (SPDT) switches.
The A19D Series Controls are designed
primarily for fluid piping applications and
include two adjustable mounting straps for
mounting the control directly to a pipe.
Refer to the A19D Series Surface Mounted
Temperature Controls Product Bulletin
(LIT-125070) for important product application
information.
Features
• SPDT switch action provides either high or
low temperature detection.
• sealed, dust-protected switch provides
reliable and durable On/Off control for
commercial and industrial applications.
• color-coded electrical terminals simplify
wiring the controls.
• sensing element insulated from the control
case minimizes the effects of ambient
temperature on the control setpoint.
• convertible range adjuster kit provides
knob, screwdriver, or concealed
adjustment options.
• multi-position mounting capability allows
you to mount the control in any position on
horizontal, vertical, or angled pipes.
• NEMA 1 enclosure provides protection
against contact with the control’s electrical
components and protects the switch and
electrical terminals from incidental contact.
Applications
Typical A19D control applications include high
temperature detection on boiler applications
and low temperature detection on unit heaters
coil applications.
Selection Chart
Product Code
Number
Description
A19DAC-1C 100 to 240°F Temperature Range and Scale, 10 F° (± 2.8 F°) Differential, Visible Range Scale
A19DAC-9C 40 to 120°C Temperature Range and Scale, 6 C° (± 1.0 C°) Differential, Visible Range Scale
A19DAC-10C 40 to 120°C Temperature Range and Scale, 6 C° (± 1.0 C°) Differential, Concealed Range Scale
A19DAC-12C 100 to 240°F Temperature Range and Scale, 10 F° (± 2.8 F°) Differential, Concealed Range Scale
A19DAF-2C 200 to 240°F Temperature Range and Scale, 3-1/2 F° (± 2.0 F°) Differential, Concealed Range Scale
Technical Specifications
A19D Series Surface Mount Temperature Controls
Product Code Number A19DAC: SPDT switch, standard differential
A19DAF: SPDT switch, narrow differential
Adjustable Temperature Range A19DAC: 100 to 240°F or 40 to 120°C
A19DAF: 200 to 240°F (95 to 120°C)
Fixed Temperature Differential A19DAC: 10 F° or 6.0 C°
A19DAF: 3-1/2 F° (1.9 C°)
Maximum Ambient Operating
Temperature
Controller Housing: 140°F (60°C)
Sensor Element: 250°F (121°C)
Switch Contact Action SPDT, Snap Acting, Enclosed Dust Protected Pennswitch
Red to Yellow Terminal Contacts Close on Temperature Increase
Red to Blue Terminal Contacts Open on Temperature Increase
Terminal Screws No. 8-32 x 1/4 in. Binder Head with Cup Washers
Electrical Ratings A19DAC: Standard Differential
A19DAF: Narrow Differential
Motor Rating VAC 120 240 120 240
Full Load Amperes 10.0 6.0 6.0 3.4
Locked Rotor Amperes 60.0 36.0 36.0 20.4
Non-Inductive Amperes 10.0 6.0 6.0 3.4
Pilot Duty 125 VA, 24 to 277 VAC 125 VA, 24 to 277 VAC
Enclosure NEMA Type 1 General Purpose; Cold Rolled Steel, Gray Baked Enamel
Mounting Clamp-On (Straps Included)
Shipping Weight 1-1/5 lb (.54 kg)
Compliance UL Guide No. XAPX, File E6688
CSA Class No. 4813 02, File LR948
C-Tick
Single-Stage Electromechanical Temperature Controls
A19D Series Temperature Control
Repair Information
If the A19D Series Surface Mounted Temperature
Control fails to operate within its specifications,
replace the unit. For a replacement control,
contact the nearest Johnson
Controls®
representative.
Y
B
R
FIG:6SPDT_chngHI
Switch Action 6
Y-R is op en
B-R is closed
Y-R cl oses
B-R opens
At Setpoint
On Increase
SPDT Switch
A19D Series Control Switch Action
Code No. LIT-1927065