ഉൽപ്പന്നം കഴിഞ്ഞുview
The Johnson Controls A19D Series Surface Mounted Temperature Controls are designed for reliable and durable On/Off temperature regulation. These controls feature line-voltage single-pole, double-throw (SPDT) switches, making them suitable for various commercial and industrial applications, particularly in fluid piping systems.
The A19DAF-2C model offers a temperature range of 200 to 240°F with a differential of 3-1/2°F (+/- 2.0°F) and a concealed range scale. It includes adjustable mounting straps for direct pipe installation.
An image showing the Johnson Controls A19DAF-2C temperature control unit, a gray rectangular box with a temperature dial on the front, and a metal mounting strap assembly beside it. The unit is designed for surface mounting, typically on pipes.
പ്രധാന സവിശേഷതകൾ:
- SPDT Switch Action: Provides either high or low temperature detection.
- Sealed, Dust-Protected Switch: Ensures reliable and durable On/Off control for commercial and industrial applications.
- Color-Coded Electrical Terminals: Simplifies wiring procedures.
- Insulated Sensing Element: Minimizes the effects of ambient temperature on the control set point.
- Convertible Range Adjuster Kit: Offers knob, screwdriver, or concealed adjustment options.
സുരക്ഷാ വിവരങ്ങൾ
Read all instructions carefully before installing or operating this device. Failure to follow these instructions could result in property damage, personal injury, or death.
- Always disconnect power before installing or servicing the control.
- Installation and wiring must comply with all local and national electrical codes.
- This device is intended for use by qualified personnel only.
- Do not exceed the specified electrical ratings.
- വൈദ്യുതാഘാതം തടയാൻ ശരിയായ ഗ്രൗണ്ടിംഗ് ഉറപ്പാക്കുക.
പാക്കേജ് ഉള്ളടക്കം
Upon opening the package, verify that all components are present and undamaged. The package for the A19DAF-2C typically includes:
- Johnson Controls A19DAF-2C Temperature Control Unit
- Adjustable Mounting Straps (2)
- നിർദ്ദേശ ഷീറ്റ് (ഈ മാനുവൽ)
Note: "Light" was listed in the original product data, but this is likely a generic placeholder. The actual product is a temperature control, not a light fixture. The above list is based on typical components for such a device.
സജ്ജീകരണവും ഇൻസ്റ്റാളേഷനും
The A19DAF-2C is designed for surface mounting, primarily on pipes. Follow these general steps for installation:
- വൈദ്യുതി വിച്ഛേദിക്കൽ: Ensure all power to the circuit where the control will be installed is disconnected at the main breaker or fuse box.
- മൗണ്ടിംഗ് ലൊക്കേഷൻ: Select a suitable location on the pipe or surface that is representative of the temperature to be controlled and allows for easy access for wiring and adjustment.
- നിയന്ത്രണം മൌണ്ട് ചെയ്യുന്നു: Use the provided adjustable mounting straps to securely fasten the control unit to the pipe. Ensure the sensing element is in good thermal contact with the pipe surface.
- വയറിംഗ്: Refer to the wiring diagram provided with the unit (not included in this general manual) and connect the line voltage wires to the color-coded electrical terminals. Ensure all connections are secure and comply with local electrical codes. The SPDT switch allows for various wiring configurations depending on whether you need to activate a device when the temperature rises or falls.
- Insulation (Optional): If necessary, insulate the pipe and the sensing element to ensure accurate temperature sensing and minimize ambient temperature effects.
- വൈദ്യുതി പുനഃസ്ഥാപിക്കൽ: Once installation and wiring are complete and verified, restore power to the circuit.
പ്രവർത്തന നിർദ്ദേശങ്ങൾ
The A19DAF-2C temperature control operates by sensing the temperature of the surface it is mounted on and activating or deactivating a connected device based on the set point.
- താപനില ക്രമീകരണം: The control features a concealed range scale. To adjust the set point, you may need to remove a cover or use a screwdriver, depending on the specific configuration of your unit's convertible range adjuster kit. Rotate the adjustment dial to the desired temperature within the 200 to 240°F range.
- Understanding SPDT Action: The Single-Pole, Double-Throw (SPDT) switch has three terminals: Common (C), Normally Open (NO), and Normally Closed (NC).
- When the sensed temperature is below the set point, the Common terminal is connected to the Normally Closed (NC) terminal.
- When the sensed temperature rises above the set point (plus differential), the Common terminal switches connection to the Normally Open (NO) terminal.
- വ്യത്യാസം: The control has a fixed differential of 3-1/2°F (+/- 2.0°F). This means there is a temperature band around the set point within which the switch will not change state, preventing rapid cycling. For example, if the set point is 220°F and the differential is 3.5°F, the switch might turn on at 220°F and turn off at 216.5°F (or vice-versa, depending on wiring).
മെയിൻ്റനൻസ്
The Johnson Controls A19DAF-2C is designed for durability and requires minimal maintenance. However, periodic checks can ensure optimal performance and longevity.
- വൃത്തിയാക്കൽ: Keep the exterior of the control unit clean and free of dust and debris. Use a soft, dry cloth. Do not use abrasive cleaners or solvents.
- കണക്ഷനുകൾ: Periodically inspect electrical connections to ensure they remain tight and free from corrosion.
- സെൻസിംഗ് ഘടകം: Ensure the sensing element remains securely attached and in good thermal contact with the surface being monitored.
- പരിസ്ഥിതി വ്യവസ്ഥകൾ: Ensure the operating environment remains within the specified temperature and humidity limits for the device.
Warning: Always disconnect power before performing any maintenance or inspection.
ട്രബിൾഷൂട്ടിംഗ്
If the A19DAF-2C temperature control is not functioning as expected, consider the following common issues and solutions:
| പ്രശ്നം | സാധ്യമായ കാരണം | പരിഹാരം |
|---|---|---|
| Control not activating connected device. | No power to the control; Incorrect wiring; Set point not reached. | Check power supply and circuit breaker. Verify wiring against diagram. Ensure sensed temperature is within operating range and has crossed the set point (considering differential). |
| Inaccurate temperature readings or erratic operation. | Poor thermal contact with pipe; Ambient temperature interference; Damaged sensing element. | Ensure sensing element is tightly secured and has good contact. Insulate the control and pipe if ambient temperatures are extreme. Inspect for physical damage. |
| Device cycles too frequently. | Rapid temperature fluctuations; Differential too small (not adjustable on this model). | Ensure the environment provides stable temperature. While differential is fixed, ensure the application is suitable for the control's specifications. |
If problems persist after attempting these solutions, contact a qualified technician or Johnson Controls customer support.
സ്പെസിഫിക്കേഷനുകൾ
| മോഡൽ നമ്പർ | A19DAF-2C |
| ബ്രാൻഡ് | ജോൺസൺ കൺട്രോൾസ് |
| താപനില പരിധി | 200 മുതൽ 240°F വരെ |
| ഡിഫറൻഷ്യൽ | 3-1/2°F (+/- 2.0°F) |
| സ്വിച്ച് തരം | Single-Pole, Double-Throw (SPDT) |
| മൗണ്ടിംഗ് തരം | Surface Mounted (with adjustable straps) |
| ഉൽപ്പന്ന അളവുകൾ | 6 x 3.5 x 3.5 ഇഞ്ച് |
| ഇനത്തിൻ്റെ ഭാരം | 1.6 ഔൺസ് |
| നിറം | ചാരനിറം |
| മെറ്റീരിയൽ | കോൾഡ് റോൾഡ് സ്റ്റീൽ |
| നിർമ്മാതാവ് | Johnson Controls Inc |
വാറൻ്റിയും പിന്തുണയും
Johnson Controls products are manufactured to high-quality standards. For specific warranty information regarding your A19DAF-2C temperature control, please refer to the warranty card included with your purchase or visit the official Johnson Controls webസൈറ്റ്.
For technical support, troubleshooting assistance beyond what is provided in this manual, or to inquire about replacement parts, please contact Johnson Controls customer service. Contact information can typically be found on their official webസൈറ്റ് അല്ലെങ്കിൽ ഉൽപ്പന്ന പാക്കേജിംഗിൽ.
It is recommended to have the model number (A19DAF-2C) and serial number (if applicable) ready when contacting support.
