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Manifold Electronic Control System (MECS)
Infinity units can be manifolded together (up to 25) by connecting them in parallel to enable
a greater hot water flow rate than is possible with a single unit. MECS is a totally integrated
system unique to Rinnai that links each Infinity unit in the system and will turn on each unit as
required.
The system is designed to ensure gas is not wasted and that an endless supply of hot water is
always available.
How it works
A master and sub-communication PCB is installed in the first unit and other subsequent units
have only the sub-communication PCB (slave cable) installed. The master communication PCB
receives information about flow rates from the PCB of each unit and balances the load on each
unit. Random selection of the units required to supply the flow demand means that all units
share the workload evenly.
All information is transmitted via communication cables to the slave units. The master control
also had an inbuilt fault detection system and will allocate a replacement unit should one fail.
MSB-C1, C2 and C3
This MECS system has the capability of joining up to 25 Infinity units and will replace the
previous Rinnai REU-SA2M/2S and REU-SA3M/3S MECS systems.
Description
Part number
Instruction book
REU-MSBM
MSB-C1
REU-MSBMB
MSB-C1
REU-MSBC1
MSB-C1
REU-MSBC2
MSB-C2
REU-MSBC3
MSB-C3
Rinnai New Zealand Limited
0800 746 624
MECS
Description
MESC master board for internal mounting inside Infinity to connect five
units
MECS master board for external mounting to connect five units
Slave cable to connect one additional unit
Joiner cable to daisy chain two MECS master boards together (up to a
maximum of five boards can be connected)
Slave cable as a spare part for the older REU-MSA2S MECS system
1
MSB-C1, MSB-C2,
MSB-C3
2011 MECS: MSB-C1, C2 and C3
01-11
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Related Manuals for Rinnai MSB-C3
Summary of Contents for Rinnai MSB-C3
- Page 1 Infinity units can be manifolded together (up to 25) by connecting them in parallel to enable a greater hot water flow rate than is possible with a single unit. MECS is a totally integrated system unique to Rinnai that links each Infinity unit in the system and will turn on each unit as required.
- Page 2 Decription Master Slave Joiner Location Inside Infinity External box Part number REU-MSBM REU-MSBMB REU-MSBC1 REU-MSBC2 No. of water heaters Refer Infinity model compatibility on next page Rinnai New Zealand Limited 2011 MECS: MSB-C1, C2 and C3 0800 746 624 01-11...
- Page 3 Can be used for all above models, and MUST be used for all HD200 (REU-VM2630WC), XR & VT domestic models and Efficiency24 (REU-K2430) Reduced warranty applies to domestic models used in commercial applications Rinnai New Zealand Limited 2011 MECS: MSB-C1, C2 and C3 0800 746 624 01-11...
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Page 4: Kit Components
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). - Page 5 System Operation For Units 2, 3, 4, and 5: • The temperature setting for all 5) Run the 4-pin connector of • The Control Board can of the connected water heaters Communication Cable B (9.8 ft, 3 m electronically connect up to 25 is controlled by the cable) up through the cable water heaters.
- Page 6 MSB-M should control 3 water heaters. which has an open connector. United States & Canada: For use with Rinnai Tankless Water Heaters (except for models V53e, V53i and R63LSe which must 2nd to 4th MSB board use pressure activation valves, PVA).
- Page 7 MSB-M should control 3 water heaters. Communication Cable A • United States & Canada: For use with Rinnai Tankless Water Heaters (except for models V53e, V53i and R63LSe which must 3) Connect the 4-pin connector use pressure activation valves, PVA).