TANKLESS RACK SYSTEM (TRS) SUBMITTAL SHEET - Rinnai
TANKLESS RACK SYSTEM (TRS) SUBMITTAL SHEET - Rinnai
TANKLESS RACK SYSTEM (TRS) SUBMITTAL SHEET - Rinnai
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MSB Control System and EZConnect<strong>TANKLESS</strong> <strong>RACK</strong> <strong>SYSTEM</strong> (TRS)• Each MSB-M board will connect up to 5 waterheaters using the MSB-C1 kits.• Up to 5 MSB-M boards can be connected togetherwith communication cables (MSB-C2 kits) allowingup to 25 water heaters to operate as a singlesystem.• An MSB system could have an operating range of15,200 BTU to as great as 5 million BTU. In termsof flow rate, 0.4 gpm to 245 gpm.• When multiple water heaters are operating, they willattempt to supply equal amounts of hot water.• The temperature setting for all of the connectedwater heaters is controlled by the temperaturecontroller connected to the water heater with theMaster MSB Board. Temperature controllersconnected to the other units will providemaintenance codes for their respective units.• If a water temperature over 140 degree F isdesired, then an MCC-91-2 controller needs to beconnected to Master Control Board• The order in which each water heater operates isoccasionally rotated to ensure equal usage amongthe entire system.• Detailed installation instructions are provided witheach of the kits.NOTE: For tankless only systems, reference MSBinstallation instructions to ensure distancebetween racks do not exceed MSBcommunication cable length.* The <strong>Rinnai</strong> EZConnect is specifically designedfor connecting only 2 water heaters.Number of ComponentsRequiredNo. ofwater MSB-M MSB-C1 MSB-C2heaters2* 1 NA NA3 1 1 NA4 1 2 NA5 1 3 NA6 2 2 17 2 3 18 2 4 19 2 5 110 2 6 111 3 5 212 3 6 213 3 7 214 3 8 215 3 9 216 4 8 317 4 9 318 4 10 319 4 11 320 4 12 321 5 11 422 5 12 423 5 13 424 5 14 425 5 15 4MSB-M kit includes• Control board• Cable A (23 in, 585 mm)• Cable B (9.8 ft, 3 m)• Brackets, ties, and screws• InstructionsMSB-C1 kit includes• Cable B (9.8 ft, 3 m)• Brackets, ties, and screws• InstructionsMSB-C2 kit includes• MSB Cable (13.1 ft, 4 m)• Terminal connectors• Instructions<strong>Rinnai</strong> Corporation • 103 International Drive • Peachtree City, GA 30269 • Toll-Free: 1-800-621-9419 • Fax: 678-829-1666 • www.rinnai.us11 SP-TRS
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