Danfoss 077B0027 Thermostat Instruction Manual

1. はじめに

This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Danfoss 077B0027 Thermostat. Please read these instructions carefully before installation and use. Keep this manual for future reference.

2. 安全情報

重要： Installation and service must be performed by qualified personnel only. Disconnect power before servicing. Failure to follow these instructions could result in property damage, personal injury, or death.

• 地域および国の電気規則がすべて遵守されていることを確認してください。
• 部品が損傷している状態でサーモスタットを操作しないでください。
• Protect the capillary tube from sharp bends or mechanical damage.
• This device is designed for specific applications; do not use it for purposes other than those specified.

3.製品オーバーview

The Danfoss 077B0027 is a standard B0 type thermostat designed for temperature control in bottle coolers and similar refrigeration units. It features a capillary tube for sensing temperature and electrical contacts for controlling the cooling system.

図1: メイン view of the Danfoss 077B0027 Thermostat, showing the control unit and coiled capillary tube.

図2：上 view of the thermostat with its capillary tube coiled, ready for installation.

主な機能は次のとおりです。

• Model: 077B0027 (also compatible with 077B0033)
• Type: B0 Standard Thermostat
• Application: Bottle coolers
• キャピラリーチューブ長さ：1200mm

4. セットアップとインストール

Before beginning installation, ensure the power supply to the appliance is disconnected. Refer to the appliance's service manual for specific instructions regarding thermostat replacement.

4.1 サーモスタットの取り付け

1. Identify the mounting location within the appliance. The thermostat should be securely fastened to prevent vibration.
2. Ensure adequate space for the capillary tube and electrical connections.

4.2 Capillary Tube Placement

The capillary tube is crucial for accurate temperature sensing. Its placement directly impacts the thermostat's performance.

Figure 3: A hand holding the thermostat, illustrating the capillary tube extending from the unit. The tube should be handled carefully to avoid kinks.

• Carefully uncoil the 1200 mm capillary tube. Avoid sharp bends or kinks, as this can damage the sensor.
• Position the sensing bulb (end of the capillary tube) in the area where temperature control is required, typically within the refrigerated compartment.
• Ensure the capillary tube does not touch any hot surfaces or moving parts.

4.3電気接続

Connect the thermostat to the appliance's electrical system according to the wiring diagram provided with your appliance. The thermostat typically has terminals for power input and compressor control.

図4：詳細 view of the electrical terminals on the thermostat. Ensure correct wiring to these terminals.

Figure 5: An alternative angle showing the electrical connections, highlighting the numbered terminals (3, 4, 6).

• すべての接続が安全かつ適切に絶縁されていることを確認してください。
• 正しい極性と容量を確認してくださいtage before restoring power.

5. 操作手順

Once installed, the thermostat automatically regulates the temperature within the specified range. The temperature settings are factory-calibrated for optimal performance in bottle coolers.

• Hot Cut-in Value: 15.2℃
• Hot Cut-out Value: 9.0℃
• Cold Cut-in Value: 8.0℃
• Cold Cut-out Value: 0.5℃

The thermostat will cycle the compressor on and off to maintain the temperature within these parameters. No user adjustment is typically required for standard operation.

6. メンテナンス

The Danfoss 077B0027 Thermostat is designed for long-term, reliable operation with minimal maintenance. However, periodic checks can help ensure optimal performance.

• 目視検査: Periodically inspect the thermostat and capillary tube for any signs of physical damage, corrosion, or loose connections.
• クリーニング： Ensure the area around the thermostat and capillary tube is free from dust and debris, which could affect temperature sensing.
• 機能チェック: If the appliance is not maintaining temperature correctly, consult the troubleshooting section or a qualified technician.

7。 トラブルシューティング

If you experience issues with your refrigeration unit after installing the Danfoss 077B0027 Thermostat, consider the following common problems and solutions:

For problems not listed here, or if solutions do not resolve the issue, contact a qualified refrigeration technician.

8. 仕様

9. 保証とサポート

For warranty information and technical support, please refer to the documentation provided with your purchase or contact your Danfoss supplier. Keep your proof of purchase for warranty claims.