Rinnai MC-601 - User Manual

To Next Page

CONTROLLER LOCATIONS

 The temperature controller should be out of reach of small children.

 Avoid locations where the temperature controller may become hot (near an oven or radiant heater).

 Avoid locations in direct sunlight. The digital display may be dicult to read in direct sunlight.

 DO NOT install controller against any metal material unless properly grounded per local electrical codes.

 Avoid locations where the temperature controller could be splashed with liquids and/or chemicals.

 DO NOT install in locations where the temperature controller can be adjusted by the public.

CABLE LENGTHS AND SIZES

The cable for the temperature controller should be a non-polarized two-core cable with a minimum gauge of 22 AWG. The

maximum cable length from each temperature controller to the water heater depends on the total number of wired

controllers connected to the water heater. (Refer to the installation and operation manual of the water heater for more

detailed information regarding additional controllers.)

U344-0662X01(00) K

Controller

Part Numbers:

Residential Applications:

Commercial Applications:

Rinnai

°F /°C

MC-601-US-BK, MC-601-US-W

MCC-601-US-W

For use in United States and Canada

Installation and Operation Instructions

Before installation, please make sure that all parts are located inside the product box. If any items are missing or

damaged, contact your local dealer/distributor or call Rinnai Customer Care at 1-800-621-9419.

Item # Item Qty

1 Controller 1

2 Screw 2

3 Wall Anchor 2

4 Clamp (Large) 1

5 Clamp (Small) 1

6 Wire Nut 2

7 Connector 1

ITEMS INSIDE PRODUCT BOX

TOOLS/MATERIALS REQUIRED

 Phillips head screwdriver  Drill  Wire Stripper/Crimper  Additional Wire (22 AWG Minimum)

MC-601 Controller

Other manuals for Rinnai MC-601

Operation & Installation Manual4 pages

Need help?

Do you have a question about the Rinnai MC-601 and is the answer not in the manual?

Summary

Product Box Contents and Required Tools

Items Inside Product Box

Lists components included in the MC-601 controller product box.

Tools and Materials Required

Specifies necessary tools and materials for installation.

Controller Installation Guide

Controller Mounting Instructions

Details on how to securely mount the controller to the wall.

Wire Routing to PC Board

Guidance on connecting the controller's wiring to the water heater's PC board.

Controller Operation and Configuration

Basic Controller Operation

Explains how to turn the controller on/off and adjust temperature settings.

Installing and Configuring Multiple Controllers

Instructions for setting up and synchronizing four MC-601 controllers.

Safety Precautions and Controller Specifications

Hot Water Safety Warnings

Critical safety information regarding hot water temperatures and scald risks.

Controller Dimensions and Template

Provides physical dimensions and a template for controller installation.

Summary

Product Box Contents and Required Tools

Items Inside Product Box

Lists components included in the MC-601 controller product box.

Tools and Materials Required

Specifies necessary tools and materials for installation.

Controller Installation Guide

Controller Mounting Instructions

Details on how to securely mount the controller to the wall.

Wire Routing to PC Board

Guidance on connecting the controller's wiring to the water heater's PC board.

Controller Operation and Configuration

Basic Controller Operation

Explains how to turn the controller on/off and adjust temperature settings.

Installing and Configuring Multiple Controllers

Instructions for setting up and synchronizing four MC-601 controllers.

Safety Precautions and Controller Specifications

Hot Water Safety Warnings

Critical safety information regarding hot water temperatures and scald risks.

Controller Dimensions and Template

Provides physical dimensions and a template for controller installation.

The Rinnai MC-601 Controller is a device designed for managing the temperature and operation of Rinnai water heaters in both residential and commercial settings. It serves as an interface for users to set desired water temperatures and control the water heater's on/off state.

Function Description:

The MC-601 Controller allows users to directly interact with their Rinnai water heater. Its primary function is to enable temperature setting, turn the water heater on or off, and, in multi-controller setups, establish priority for temperature control. When the water heater is off, pressing the "On/Off" button activates it. The "Priority" button is crucial in installations with multiple controllers, allowing one controller to take precedence in setting the water temperature. A green "Priority" light indicates when a controller is actively managing the temperature and the water heater is ready to supply hot water. This priority can only be changed when no hot water is running. Users can adjust the temperature setting using the Up and Down arrow buttons. Once a temperature is set, all hot water sources connected to the water heater will provide water at that temperature until it is changed again from any connected controller. The "In Use" indicator illuminates when a hot water fixture is open, signifying that the water heater is actively providing hot water.

Important Technical Specifications:

Part Numbers:
- Residential Applications: MC-601-US-BK (Black), MC-601-US-W (White)
- Commercial Applications: MCC-601-US-W (White)
Cable Requirements: Non-polarized two-core cable with a minimum gauge of 22 AWG.
Maximum Cable Length (per controller to water heater):
- 1 Controller: 328 ft. (100 m)
- 2 Controllers: 164 ft. (50 m)
- 3 or 4 Controllers: 65 ft. (20 m)
Wiring: Controllers can only be wired in parallel; they cannot be wired in series.
Overall Controller Dimensions:
- Width (W): 3.54 in.
- Height (H): 4.72 in.
- Depth (D): 0.70 in.
Mounting Hole Dimensions:
- Securing Screw Holes: Ø.20
- Wiring Hole: Ø.50

Usage Features:

Temperature Control: Users can precisely set the desired water temperature using intuitive Up/Down arrow buttons.
On/Off Functionality: A dedicated "On/Off" button allows for easy activation and deactivation of the water heater.
Priority Setting (Multi-Controller Systems): The "Priority" button enables a specific controller to take control of the temperature setting in installations with multiple MC-601 units. This feature ensures coordinated temperature management.
"In Use" Indicator: A visual indicator on the display informs the user when the water heater is actively supplying hot water.
Display: The controller features a digital display showing the current temperature setting and operational status.
Installation Flexibility: The controller is designed for wall mounting and includes necessary hardware (screws, wall anchors).
Compatibility: Designed for use in the United States and Canada.
Multi-Controller Installation: Up to four MC-601 controllers can be installed. Special steps are required for initializing four controllers simultaneously, involving pressing "Priority" and "On/Off" buttons on the fourth controller until a beep sounds. This ensures all displays are lit and show the temperature setting.
Integration with Rinnai Control-R™ Module: In applications where a Rinnai Control-R™ module replaces a fourth controller, specific setup procedures apply depending on the "Recirculation" setting in the mobile app.

Maintenance Features:

Easy Installation: The manual provides clear instructions for mounting the controller, including a template for drilling holes.
Wiring Guidelines: Emphasizes adherence to National Electrical Code (NEC) wiring guidelines for safe and correct installation.
Troubleshooting: Instructions for checking controller displays in multi-controller setups (e.g., if two dashes appear, repeat initialization steps).
Replacement Procedures: If a controller is replaced, the initialization steps for multi-controller systems should be repeated for the new unit.
Safety Warnings: The manual includes critical safety warnings regarding hot water scald potential, advising users to test water temperature before use, especially for children, the elderly, or infirm individuals. It also provides a table of burn times at various temperatures.
Location Guidelines: Provides recommendations for optimal controller placement, such as avoiding direct sunlight, hot locations (near ovens), and areas prone to splashes, and ensuring it's out of reach of small children. It also warns against installing the controller against metal material unless properly grounded.

The MC-601 Controller is an essential component for efficient and safe operation of Rinnai water heaters, offering user-friendly controls and robust safety features.