1. Product Overview
The Noritz RC-9018M is a commercial remote controller designed for use with Noritz NC199 and NCC199 tankless water heater models. This unit provides convenient control over water heater functions, including temperature adjustment, access to diagnostic information, and error code history. It also features a temperature lockout safety mechanism and can monitor up to six heaters simultaneously.
Figure 1: Noritz RC-9018M Commercial Remote Controller. The display shows the current temperature (120°F) and time (3:52 PM). Control buttons include ON/OFF, PROG (Program), and ALARM OFF. A warning about scalding is visible at the bottom.
2. Important Safety Information
Please read all instructions carefully before using this appliance. Failure to follow these instructions could result in property damage, personal injury, or death.
- WARNING: Always check the actual water temperature at the tap and the controller's set temperature to prevent scalding.
- WARNING: Hot water heater temperatures over 125°F (51.7°C) can cause severe burns instantly or death from scalding.
- Ensure proper installation by a qualified professional.
- Do not attempt to repair or modify the unit yourself. Contact qualified service personnel.
3. Setup and Installation
The RC-9018M remote controller is designed for indoor applications. It connects to compatible Noritz tankless water heaters using an RC-CORD10/26 cable or 18 AWG bell wire.
- Ensure the water heater is powered off before beginning installation.
- Mount the remote controller in a convenient indoor location, away from direct heat or moisture.
- Connect the remote controller to the water heater using the appropriate wiring (RC-CORD10/26 or 18 AWG bell wire) according to the water heater's installation manual.
- Verify all connections are secure before restoring power to the water heater.
4. Operating Instructions
4.1. Control Buttons
- ON/OFF: Press this button to turn the water heater system on or off. A light indicator above the button typically shows the power status.
- PROG (Program): Used to access programming menus, such as setting the desired water temperature, time, or other system parameters. Refer to the water heater's main manual for detailed programming steps.
- ALARM OFF: Press this button to silence or clear active alarm notifications from the water heater.
4.2. Digital Display
The digital display shows critical information about the water heater's operation:
- Temp: Indicates the current water temperature or the set temperature.
- Time: Displays the current time (e.g., PM 3:52).
- Error Codes: In case of a system malfunction, error codes will be displayed here. Refer to the troubleshooting section or the water heater manual for code definitions.
4.3. Temperature Adjustment
To adjust the desired water temperature, press the PROG button and follow the on-screen prompts. Use the up/down arrows (if present, or repeated PROG presses) to select the desired temperature. Confirm your selection to save the setting. Always be mindful of scalding risks when setting higher temperatures.
4.4. Monitoring Multiple Heaters
This controller is capable of monitoring up to six compatible Noritz water heaters simultaneously. Configuration for multi-unit monitoring typically involves specific settings within the PROG menu and may require professional setup. Consult your water heater's installation and operation manual for detailed instructions on multi-unit system integration.
5. Maintenance
The Noritz RC-9018M remote controller requires minimal maintenance. Keep the unit clean and dry. Avoid using abrasive cleaners or solvents. Periodically check the wiring connections for any signs of wear or damage. For any internal issues, contact a qualified service technician.
6. Troubleshooting
The RC-9018M provides access to unit diagnostics and error code history, which can assist in troubleshooting. If an issue arises:
- Check Display: Note any error codes or unusual messages on the digital display.
- Access Diagnostics: Use the PROG button to navigate to the diagnostic menu to view system status and historical error codes.
- Consult Water Heater Manual: Refer to the specific Noritz water heater manual (NC199/NCC199) for detailed explanations of error codes and troubleshooting steps.
- Power Cycle: If the controller is unresponsive, try turning the water heater system off and then on again using the ON/OFF button.
- Contact Support: If the problem persists, contact Noritz customer support or a qualified service technician.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | RC-9018M |
| Compatibility | Noritz NC199, NCC199 Tankless Water Heaters |
| Application | Commercial, Indoor |
| Connectivity | RC-CORD10/26 or 18 AWG bell wire |
| Functions | Temperature adjustment, diagnostics, error code history, temperature lockout |
| Multi-Heater Monitoring | Up to six heaters |
| Item Weight | 9.6 ounces |
| Product Dimensions | 11 x 6 x 6.5 inches |
| Special Feature | Ergonomic |
8. Warranty Information
The Noritz RC-9018M Commercial Remote Controller comes with a 1-year manufacturer's warranty. Please retain your proof of purchase for warranty claims. For detailed terms and conditions, refer to the warranty documentation included with your product or visit the official Noritz website.
9. Customer Support
For technical assistance, troubleshooting, or warranty service, please contact Noritz customer support. You can find contact information on the official Noritz website or in the documentation provided with your water heater.
