Rinnai installation instructions Kit Components, For Unit, MSB-M MSB-C1

Page 1

U306-1030(00)

070 00012 32035 9

Manifold Electronic Control System

Installation Instructions

MSB-M

MSB-C1

Note:

Up to 5 water heaters can be connected together using the MSB-M and MSB-C1 kits.

When over 5 water heaters are connected together, MSB-M units are connected using MSB-C2 kits.

If multiple MSB-M are used, then at least three water heaters should be connected to each MSB-M.

Ex: With 7 water heaters, one MSB-M should control 4 water heaters and the other MSB-M should control 3 water heaters.

United States & Canada: For use with Rinnai Tankless Water Heaters (except for models V53e, V53i and R63LSe which must use pressure activation valves, PVA).

Please contact Rinnai if you have further questions on the applicable water heater models.

WARNING

Disconnect all water heaters from their power source before carrying out the following installation procedures.

NOTE: The front cover panels of each water heater must be removed prior to completing the following installation procedures.

Kit Components

 

 

 

 

 

MSB-M (Pack A)

 

 

 

 

 

 

MSB-C1 (Pack B)

 

 

 

 

(For wiring Units 1 and 2)

 

 

 

 

(For wiring Units 3, 4 and 5)

 

 

 

 

 

 

 

Parts List

 

 

 

 

 

 

 

 

Parts List

 

 

Part

Qty

Part

 

 

 

 

 

 

Qty

 

Control Board

1

 

Communication Cable B

1

 

Communication Cable A

1

 

(9.8 ft, 3 m)

 

 

 

 

 

 

 

 

(18 in, 450 mm)

 

 

 

Cable tie bracket

 

 

 

 

 

 

2

 

Communication Cable B

1

 

Cable tie

 

 

 

 

 

 

2

 

(9.8 ft, 3 m)

 

 

 

Instruction Sheet

 

 

 

 

 

 

1

 

Cable tie bracket

2

 

Note: One MSB-C1 is required

 

Cable tie

2

 

for each water heater (Units 3, 4,

 

Instruction Sheet

1

 

and 5)

 

 

 

 

 

 

 

 

bracket

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Screw

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Master

 

 

 

 

 

 

 

 

 

Communication Cable A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2nd

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3rd

 

 

 

 

 

 

 

 

 

 

 

 

 

Water Heater

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4th

Communication Cables B

Control Board

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MSB Communication cable (MSB-C2)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5th

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

On the 2nd to 5th MSB boards, set to 1 unit ready.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

For Unit 1:

1)Remove the screw from the sheet metal reinforcement plate located at the bottom of the water heater cabinet, and then use it to secure the Control Board to the water heater cabinet.

If installing on a condensing water heater, refer to the addi- tional instruction showing below. *

2) Connect the connector

from Communication Cable A (18 inch, 450 mm cable) to socket No. 1 on Control Board.

Ground wire of

Communication Cable A

3)Connect the connector from Communication Cable A to the

4-pin socket located at the top of the water heater control board. Communication Cable A ground wire terminal should be grounded with the PC board ground wire.

Ground wire of

Communication Cable A

4)Attach the cable tie bracket to the bottom of the water heater cabinet using the existing screw. Loosely secure the cable tie through the bracket and around the communication cable. DO NOT TIGHTEN THE CABLE TIE AT THIS TIME - the Communication Cables B from the other water heaters must be secured by this cable tie.

*These condensing water heaters require a bracket for the control board:

RC98HPi (REU-KA3237FFUD)/RC98HPe (REU-KA3237WD) /RC80HPi (REU-KA2530FFUD)/RC80HPe (REU-KA2530WD)

/REU-KM3237FFUD/REU-KM3237WD/ REU-KM2635FFUD

/REU-KM2635WD

Attach the control board to this bracket with one screw in Step 1.

Install the bracket

Attach the control board

Install the bracket with one screw as shown above and continue with the rest of the installation.

Image 1
Contents For Unit Kit ComponentsMSB-M MSB-C1 REU-KM3237FFUD/REU-KM3237WD/ REU-KM2635FFUD REU-KM2635WDSystem Operation For Units 2, 3, 4,Dip SW table for open water flow servo valve LED

MSB-M, MSB-C1 specifications

The Rinnai MSB-C1 and MSB-M are cutting-edge gas condensing boilers designed to deliver exceptional heating and hot water performance for residential and commercial applications. Rinnai, a leading manufacturer known for its innovation in heating technology, has equipped these models with advanced features that enhance energy efficiency and user comfort.

One of the standout features of the MSB-C1 and MSB-M is their ability to provide high energy efficiency ratings. These condensing boilers utilize a heat exchanger that captures and reuses exhaust gases, maximizing energy output while minimizing waste. This innovative design not only reduces fuel consumption but also lowers greenhouse gas emissions, making these models an environmentally friendly choice.

The MSB-C1 and MSB-M are equipped with intelligent control systems that allow users to easily manage heating and hot water needs. The integrated control panel offers user-friendly operation, enabling precise temperature adjustments and scheduling options. This level of control ensures that users can optimize energy usage based on their specific requirements.

Safety is a top priority in Rinnai’s designs, and both models come with numerous safety features. The built-in pressure relief valve and flame failure safety mechanism provide peace of mind, ensuring the boilers operate safely under various conditions. Moreover, the models are constructed with durable materials that enhance longevity while minimizing maintenance needs.

The Rinnai MSB-C1 is ideal for larger homes or commercial spaces, offering a robust output to efficiently meet significant heating demands. Conversely, the MSB-M is designed for smaller environments, providing flexibility without compromising on performance. Each model is capable of delivering hot water on demand, reducing the waiting time for users and ensuring comfort at all times.

Installation has been simplified with the MSB-C1 and MSB-M models, as their compact design allows for versatile placement within buildings. They can be easily integrated into existing heating systems, facilitating upgrades without extensive modifications.

In summary, the Rinnai MSB-C1 and MSB-M are sophisticated condensing boilers that combine efficiency, safety, and user-friendly features. Their advanced technology and environmentally conscious design make them an excellent choice for those seeking reliable and sustainable heating solutions. These systems not only fulfill heating requirements but also promote energy conservation, making them a forward-thinking option for any space.