1. Einleitung
This manual provides essential information for the proper installation, operation, and maintenance of the Bunn 4623-GTLU0087 Thermostat Kit 200F-COTHERM. This genuine OEM replacement part is designed to ensure accurate temperature control in compatible Bunn equipment. Please read this manual thoroughly before proceeding with installation or operation.
2. Sicherheitshinweise
WARNING: Risk of Electric Shock and Burns.
- Always disconnect power to the equipment before installing, servicing, or removing the thermostat.
- Installation und Wartung dürfen nur von qualifiziertem Personal durchgeführt werden.
- Stellen Sie sicher, dass alle Kabelverbindungen sicher sind und den örtlichen Elektrovorschriften entsprechen.
- The thermostat operates at high temperatures. Allow equipment to cool before handling components.
- Sicherheitsvorrichtungen dürfen nicht umgangen oder verändert werden.
3. Produktüberschreitungview
The Bunn 4623-GTLU0087 Thermostat Kit 200F-COTHERM is a critical component for maintaining precise temperature within Bunn commercial beverage equipment. It is designed to regulate heating elements to achieve and maintain a target temperature of 200°F (93°C).

Abbildung 1: Bunn 4623-GTLU0087 Thermostat Kit. This image displays the complete thermostat kit, including the main control unit with electrical terminals, the temperature sensing bulb, and the capillary tube. The bulb is typically inserted into the liquid or air path to monitor temperature, and the capillary tube connects it to the control unit, which then activates or deactivates the heating element based on the set temperature.
4. Einrichtung und Installation
This thermostat kit is a direct replacement part. Refer to your specific Bunn equipment's service manual for detailed installation instructions. The following are general steps:
- Stromversorgung trennen: Ensure the equipment is completely disconnected from its power source.
- Zugangsthermostat: Locate and access the existing thermostat within the equipment. This may require removing panels or covers.
- Dokumentenverdrahtung: Carefully note or photograph the wiring connections to the old thermostat before removal.
- Alten Thermostat entfernen: Disconnect wires and carefully remove the old thermostat, including its sensing bulb and capillary tube.
- Neuen Thermostat einbauen: Mount the new Bunn 4623-GTLU0087 thermostat in the same location. Ensure the sensing bulb is correctly positioned in the designated temperature-sensing area.
- Verkabelung anschließen: Reconnect the electrical wires to the new thermostat terminals, matching the documented configuration. Ensure all connections are tight and secure.
- Sichere Komponenten: Ensure the capillary tube is routed without kinks or sharp bends and secured to prevent damage.
- Strom wiederherstellen: Once installation is complete and all covers are replaced, restore power to the equipment.
- Testbetrieb: Verify proper function by monitoring the equipment's temperature and ensuring the thermostat cycles the heating element as expected.
5. Bedienungsanleitung
The Bunn 4623-GTLU0087 Thermostat is a fixed-temperature device, pre-calibrated to maintain a temperature of 200°F (93°C). It operates automatically to regulate the heating cycle of the connected equipment. There are no user-adjustable settings on this specific thermostat model.
- Upon power-up, the thermostat will sense the current temperature.
- If the temperature is below 200°F, the thermostat will engage the heating element.
- Once the temperature reaches 200°F, the thermostat will disengage the heating element.
- The thermostat will cycle on and off as needed to maintain the target temperature.
6. Wartung
Regular inspection of the thermostat and its connections is recommended to ensure continued reliable operation.
- Sichtprüfung: Periodically inspect the thermostat, wiring, and capillary tube for any signs of damage, corrosion, or loose connections.
- Reinigung: Ensure the area around the thermostat and sensing bulb is free from debris, dust, or buildup that could impede accurate temperature sensing. Disconnect power before cleaning.
- Funktionsprüfung: If the equipment is not maintaining the correct temperature, or if the heating element is constantly on or off, the thermostat may require further inspection or replacement.
Note: Do not attempt to repair a faulty thermostat. Replace it with a genuine Bunn OEM part if it is not functioning correctly.
7. Fehlerbehebung
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Equipment not heating | No power to equipment Fehlerhaftes Heizelement Fehlerhafter Thermostat Wackelkontakt | Stromversorgung prüfen Test heating element (qualified personnel) Test thermostat continuity (qualified personnel) Verkabelung prüfen und sichern |
| Equipment overheating | Faulty thermostat (stuck closed) Sensing bulb improperly seated | Thermostat ersetzen Ensure sensing bulb is correctly positioned |
| Uneinheitliche Temperatur | Sensing bulb not making good contact Thermostat cycling too frequently/infrequently | Verify sensing bulb placement Replace thermostat if cycling is abnormal |
If troubleshooting steps do not resolve the issue, contact a qualified service technician or the product manufacturer for assistance.
8. Spezifikationen
- Teilenummer: 4623-GTLU0087
- Typ: Thermostat-Kit
- Temperatureinstellung: 200°F (93°C)
- Markenkompatibilität: Bunn
- Hersteller: Fits Bunn (OEM Part)
9. Garantieinformationen
As a genuine OEM part, this thermostat kit is typically covered by the original equipment manufacturer's warranty for replacement parts. Please refer to the warranty documentation provided with your Bunn equipment or contact the seller/manufacturer for specific warranty terms and conditions.
10. Kundendienst
For technical assistance, replacement parts, or further inquiries regarding the Bunn 4623-GTLU0087 Thermostat Kit, please contact your authorized Bunn service provider or the original seller of the product. When contacting support, please have your equipment model number and the thermostat part number (4623-GTLU0087) available.





