Rinnai REU-VA3237FFU High Altitude Installations, Connecting Multiple Water Heaters, Guidelines

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High Altitude Installations

Set dip switches 2 and 3 to the values shown in table below for your altitude. The default setting for the appliance is 0-2000 ft (0-610 m) with switches No. 2 and No 3 in the OFF position.

			0-2000 ft								2001-5200 ft										5201-7800 ft									7801-10200 ft
		(0-610 m)									(610-1585 m)										(1585-2377 m)									(2378-3109 m)

Switch No. 2					OFF									OFF										ON									ON

Switch No. 3					OFF									ON										OFF									ON


		Switch No.									Switch No.										Switch No.									Switch No.
															ON																			ON
						ON																			ON
						ON					O														ON					O
		O					1									1					O					1									1
		O					1									1					O					1									1
		F									F					2					F					2				F					2


		F					2				F										F									F
							3									3										3									3


							4									4										4									4


							5									5										5									5



							6									6										6									6


							7									7										7									7
																										7									7
																										8									8
							8									8
							8									8

Connecting Multiple Water Heaters

The EZConnect cable is an optional accessory that connects 2 water heaters and allows them to function as one hot water source.

The MSA-2M and MSA-2S packs are optional accessories that connects 2 to 5 water heaters and allows them to function as one hot water source.

Refer to the instructions that come with the accessory for complete installation information.

Guidelines

•Do not install both the EZConnect and the MSA packs because they are not designed to operate together.

•Water heaters connected with the EZConnect Cable or the MSA-2M and MSA-2S packs cannot be used for the Bath Fill function.

•Water heaters should be installed less than 18 inches apart so that the cables will reach between units and to prevent temperature fluctuations (cold water sandwich effect) when the water is shut off and turned back on.

•Temperature settings can only be changed on the controller for the primary unit.

	Number of Connected Water Heaters:		Accessories Necessary:

	2		(1) EZConnect Cable or (1) MSA-2M

	3		(1) MSA-2M and (1) MSA-2S

	4		(1) MSA-2M and (2) MSA-2S

	5		(1) MSA-2M and (3) MSA-2S

34		VA Series Indoor LS Manual

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Contents REU-VA3237FFU ANS Z21.10.3 CSATable of Contents Specifications R98LSiSafety Definitions Consumer Safety InformationSafety Behavior and Practices Safety Features Description of Operation Features Available on Remote ControllersFeatures Operating InstructionsRemote Controllers Models MC-91-1US & MCC-91-1USBC-100V-1US Setting the Temperature Temperature Options Without a Remote ControllerSetting the Clock Temperature RangesSetting the Sound Volume Voice Prompt Model Temperature Settings Available ºFSetting the Water Volume Using the Water Smart / Bath Fill FunctionOverview Filling the Tub Setting Controller to MuteModels MC-91 and MCC-91 Maintenance Error Code Table Error CodesError Fault Remedy Code Accessing Operating Information Trouble Shooting for Common IssuesWater Quality Flushing the Heat Exchange Error Code LC or Rinnai Water HeaterInstallation Instructions General InstructionsClearances from Appliance Attachment of the Water HeaterGas Piping Electrical ConnectionGeneral Instructions Pipe Sizing Procedure Example Pressure Relief Valve Water PipingFreeze Protection Freeze Protection Piping Rinnai Water HeaterRecommended Piping for Basic Installation QTYRecommended Piping for Circulation Systems For this applicationOptional Piping for Circulation Systems Years On Heat Exchanger Years On PartsIntake / Exhaust Guidelines Venting InstructionsCondensate Maximum Vent Length Manufacturer Product Parts Vent ProductsTermination Area Where Bterminal is not Permittted Flue Terminal Clearances ANS Z21.10.3 CSAAdditional Clearances Vent Terminal Inside CornerFlue Installation Concentric Venting R50LSi, R75LSi, R94LSi Exhaust Pipe Assembly Flue Installation R98LSi, R98LSi-ASMEAir Intake Assembly Venting Clearances to CombustiblesHorizontal with Concentric Termination Vertical TerminationsNumber of Connected Water Heaters Accessories Necessary High Altitude InstallationsConnecting Multiple Water Heaters GuidelinesLocation Remote Controller InstallationConfigurations Cable Lengths and SizeSecuring screw Wiring hole 21/32 For Your Safety Read Before Operating Operating InstructionsPressure Drop Curve Technical DataOutlet Flow Data Space Heating Dimensions R50LSi, R75LSi, R94LSi R98LSi, R98LSi-ASMELadder Diagram HOTConsumer Support Warranty InformationLimited Warranty VA LS Series Period of Coverage from date of purchaseWhat will Rinnai do? Rinnai’s other fine products 103 International Drive

REU-VA3237FFU specifications

The Rinnai REU-VA3237FFU is a high-efficiency gas continuous flow water heater designed to provide instant hot water on demand. It is particularly well-suited for households that require a reliable source of hot water while maximizing energy savings. This unit boasts impressive features that set it apart in the market, catering to both residential and commercial applications.

One of the standout characteristics of the REU-VA3237FFU is its energy-efficient design. With an impressive energy factor of 0.89, this model delivers exceptional performance, maximizing energy use and minimizing waste. The continuous flow technology means that there is virtually no wait time for hot water, making it ideal for busy households with multiple points of use.

The REU-VA3237FFU employs advanced temperature control technology. It features an intelligent digital controller that allows users to easily set their desired water temperature. This ensures consistent delivery of hot water at the desired temperature, enhancing comfort while also promoting safety by reducing the risk of scalding. The model also incorporates a safety lock function that can prevent accidental changes to the temperature setting.

In terms of durability and design, the Rinnai REU-VA3237FFU showcases high-quality build materials that contribute to its longevity. The stainless steel heat exchanger is resistant to corrosion, ensuring a long life expectancy and reliable performance over time. Additionally, the compact design makes it easy to install in tight spaces, whether indoors or outdoors, adapting to various installation environments.

Moreover, the Rinnai REU-VA3237FFU features a low NOx emission system, aligning with environmental standards and regulations. This eco-friendly technology makes it an excellent choice for environmentally conscious consumers looking to reduce their carbon footprint while enjoying the benefits of modern hot water systems.

The Rinnai REU-VA3237FFU is also equipped with a self-diagnostic system, which allows for easier maintenance and troubleshooting. This feature increases the unit's reliability by monitoring its performance and alerting users to any potential issues before they develop into significant problems.

In summary, the Rinnai REU-VA3237FFU is a standout continuous flow water heater that combines energy efficiency, durability, and advanced technology. With its smart temperature control, compact design, and environmentally friendly features, it is an outstanding choice for anyone seeking a dependable and efficient hot water solution.