1. はじめに
The HEATIT ET-72 is a digital programmable thermostat designed for electric floor heating systems. It features a large LCD display for clear temperature and schedule viewing, and offers advanced programming options to optimize energy consumption and comfort. This manual provides detailed instructions for the safe installation, operation, and maintenance of your ET-72 thermostat.

図1: 前面 view of the HEATIT ET-72 Digital Programmable Thermostat, displaying current temperature, set temperature, time, and day.
2. 安全情報
Please read all instructions carefully before installation and operation. Improper installation or use can lead to electrical shock, fire, or damage to the thermostat and heating system. All wiring should be performed by a qualified electrician in accordance with local electrical codes.
- Disconnect power at the circuit breaker before installing or servicing the thermostat.
- The ET-72 is designed for 120V/240V systems up to 15A. Ensure your system's voltageとcurrentは互換性があります。
- The thermostat includes a built-in Class A GFCI (Ground Fault Circuit Interrupter) for protection against electric shock. Test the GFCI monthly as instructed in the Maintenance section.
- サーモスタットを水に浸したり、過度の湿気にさらしたりしないでください。
3. セットアップとインストール
3.1 パッケージ内容
- HEATIT ET-72 Thermostat Unit
- フロアセンサー
- 取り付けネジ
- ユーザーマニュアル

Figure 2: Included components: thermostat, manual, floor sensor, and mounting hardware.
3.2配線手順
The ET-72 thermostat is designed for easy installation to control your floor heating system. It supports dual voltage 120V/240V. Refer to the wiring diagram below and consult a qualified electrician for proper installation.
- メイン電気パネルで加熱回路への電源をオフにします。
- Connect the Line (L1, L) wires from your power supply to the corresponding terminals on the thermostat.
- Connect the Load (N, L) wires from your floor heating system to the corresponding terminals on the thermostat.
- Connect the floor sensor wires to the IN/SNR terminals. Ensure proper polarity if specified.
- すべての接続をしっかりと固定します。

Figure 3: Thermostat dimensions and wiring diagram for Line, Load, and Sensor connections.
3.3 取り付け
Mount the thermostat in a standard electrical box using the provided screws. Ensure the thermostat is level and securely fastened to the wall.
4. 操作手順
4.1 初期電源投入と表示
After installation and restoring power, the thermostat's large LCD display will illuminate. It typically shows the current room temperature, the set temperature, the current time, and the day of the week. Use the touch controls (left arrow, up arrow, down arrow, OK) located at the bottom of the display to navigate menus and adjust settings.
4.2 時刻と日付の設定
Access the settings menu to adjust the current time and day. Follow the on-screen prompts, using the up/down arrows to change values and the OK button to confirm.
4.3 7日間スケジュールのプログラミング
The ET-72 allows for a 7-day programmable schedule with 4 or 2 stages per day. This feature enables you to set different temperatures for various times of the day and days of the week, optimizing comfort and energy efficiency.
- Enter the programming mode via the menu.
- プログラムする日または日のグループを選択します。
- 各sについてtage (e.g., Wake, Leave, Return, Sleep), set the desired start time and temperature.
- Confirm settings for each stage and day.
4.4 Sensor Applications
The thermostat offers three sensor application modes:
- 部屋: Controls room temperature based solely on the built-in sensor.
- 床: Controls the floor temperature based solely on the external floor sensor.
- 部屋の制限: Controls the room temperature based on the built-in sensor while simultaneously monitoring the floor temperature to ensure it does not exceed a user-defined upper limit. This mode provides both ambient comfort and floor protection.
Select the appropriate sensor mode from the thermostat's settings menu based on your heating system configuration and preferences.
5. メンテナンス
5.1 Monthly GFCI Test
It is crucial to test the built-in GFCI function monthly to ensure proper operation and continued protection against electric shock. Follow these steps:
- Press the 'TEST' button on the thermostat. The GFCI should trip, and the power to the heating system should cut off.
- Press the 'RESET' button to restore power.
- If the GFCI does not trip or reset correctly, discontinue use and contact a qualified electrician immediately.
5.2 クリーニング
サーモスタットのディスプレイを清掃し、asingを柔らかく、damp 布で拭いてください。研磨剤入りの洗剤や溶剤は表面を傷つける恐れがあるため使用しないでください。
6。 トラブルシューティング
If you encounter issues with your HEATIT ET-72 thermostat, refer to the following common problems and solutions:
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| サーモスタットの表示が空白 | No power, tripped circuit breaker, or loose wiring. | 回路ブレーカーを確認してください。すべての配線接続が確実に行われていることを確認してください。 |
| GFCIが頻繁に作動する | Ground fault in the heating system or thermostat. | Perform GFCI test. If it continues to trip, consult a qualified electrician to inspect the heating system and wiring. |
| Error Code E2 (Faulty Probe) | Floor sensor is disconnected or damaged. | Check the floor sensor connections. If the error persists, the sensor may need replacement. |
| 温度の測定値が不正確 | Sensor placement issues or calibration needed. | Ensure sensors are correctly placed and not obstructed. Refer to advanced settings for calibration if available. |
| 暖房システムが反応しない | Thermostat in OFF mode, programming error, or system fault. | Verify thermostat is in an active heating mode. Check programmed schedule. Ensure GFCI is not tripped. |
これらの解決策を試しても問題が解決しない場合は、カスタマー サポートにお問い合わせください。
7. 仕様
| 特徴 | 仕様 |
|---|---|
| ブランド | それを加熱する |
| モデル名 | ET-72 |
| コントローラータイプ | 触る |
| 特集 | プログラム可能 |
| 巻tage | 120V/240V |
| マックス Amp怒る | 15A |
| GFCI保護 | Built-in Class A |
| 表示タイプ | 液晶 |
| プログラミング | 7-day, 4 or 2 stag1 日あたり |
| Sensor Applications | Room, Floor, Room.Limit |
| 取り付けタイプ | 壁掛け |
| アイテム重量 | 15.5オンス |
| パッケージ寸法 | 6.18 x 4.8 x 2.4インチ |
| 認証 | ETL承認済み |
8. 保証情報
The HEATIT ET-72 Digital Programmable Thermostat comes with a 4年間の限定保証本保証は、通常の使用状況における材料および製造上の欠陥を対象としています。保証請求の際は、購入証明書を保管してください。具体的な条件については、製品に付属の保証書を参照するか、カスタマーサポートにお問い合わせください。
9. カスタマーサポート
For technical assistance, troubleshooting, or warranty inquiries, please contact HEATIT customer support. Refer to the contact information provided in your product packaging or visit the official HEATIT webサイト。
オンラインリソース: Visit the HEATIT Store on Amazon





