Rinnai REU-V2520FFUD User Manual

Operation / Installation Manual

To Suit Models:

........REU-V2520FFU

R53

.....REU-V2520FFUC

C53

REU-V2532FFU........

R85

REU-V2532FFUC......

C85

......REU-V2520FFUD

R53PLUS

REU-V2520FFUCD

C53PLUS

REU-V2532FFUD......

R85PLUS

REU-V2532FFUCD

C85PLUS

(Residential and Commercial indoor unit)

ANS Z21.10.3=CSA 4.3

WARNING: If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury or death.

–Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

–WHAT TO DO IF YOU SMELL GAS

•Do not try to light any appliance.

•Do not touch any electrical switch; do not use any phone in your building.

•Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions.

•If you cannot reach your gas supplier, call the fire department.

–Installation and service must be performed by a qualified installer, service agency or the gas supplier.

S P E C I F I C A T I O N S

Model		V2532FFU		V2532FFUC		V2520FFU		V2520FFUC
		V2532FFUD		V2532FFUCD		V2520FFUD		V2520FFUCD
Minimum Gas Consumption Btu/h					15,000
Maximum Gas Consumption Btu/h			180,000
Hot water capacity, (50°F rise)		0.6 to 6.5 GPM				0.6 to 5.3 GPM
Hot water capacity, (35°F rise)		0.6 to 8.5 GPM				0.6 to 5.3 GPM
Default Temperature Setting (no controller)		120°F		140°F		120°F		140°F
Controller Default Temperature Setting		104°F		140°F		104°F		140°F
Maximum Temperature Setting		140°F		185°F		140°F		185°F
Minimum Temperature Setting				98°F				120°F
Weight				49 Lbs.
Efficiency Rating					87%
Noise level				49 dB (A)
Electrical	Normal			75 watts
	Standby			5.5 watts
Consumption
	Anti-frost Protection			100 watts
By-Pass Control		Electronic				Fixed		None
Minimum	Natural Gas			6" W.C.
Gas Supply
	Propane			10" W.C.
Pressure
Maximum	Natural Gas			10.5" W.C.
Gas Supply
	Propane			13.5" W.C.
Pressure
Type of Appliance		Temperature controlled continuous flow gas hot water system.
Operation		With or without remote controls, mounted in kitchen, bathroom, ect.
Exhaust System				Direct Vent - Forced Combustion
Approved Gas Type		Natural Gas or Propane - Ensure unit matches gas type it's being installed on.
Connections		Gas Supply: 3/4" MNPT, Cold Water Inlet: 3/4" MNPT, Hot Water Outlet: 3/4" MNPT
Ignition System				Direct Electronic Ignition
Electric Connections		Appliance: AC 120 Volts, 60Hz.				Remote Control: DC 12 Volts (Digital)
Water Temperature Control				Simulation Feedforward and Feedback.
Water Supply Pressure		Minimum Water Pressure: 20 PSI (Recommended 30-80 PSI for maximum performance)
Maximum Water Supply Pressure				150 PSI
Remote Control Cable				Non-Polarized Two Core Cable
				Flame Failure - Flame Rod
				Boiling Protection - 210°F
			Remaining Flame (OHS) 207°F Bi-Metal Switch
Safety Devices
				Thermal Fuse 264°F
		Automatic Frost Protection - Bi-Metal Sensor & Anti-Frost Heaters
			Combustion Fan RPM Check - Integrated Circuit
				Over Current - Glass Fuse (3 amp)

NOTE: Rinnai is continually updating and improving products, therefore, specifications are subject to change without prior notice. Local, state, provincial and federal codes must be adhered to prior to installation.

Rinnai America

FF Models

L I M I T E D W A R R A N T Y

R i n n a i W a t e r H e a t e r	Warranty031705COMM-V2

WHAT IS COVERED?

This Warranty covers any defects in materials or workmanship when the product is installed and operated according to Rinnai written installation instructions, subject to the terms within this limited warranty document. This Warranty applies only to products that are installed by a state qualified or licensed contractor. Improper installation may void this Warranty. Rinnai strongly suggests

that you use an installer who has attended a Rinnai product knowledge class before installing this water heater. This Warranty extends to the original purchaser and subsequent owners, but only while the product remains at the site of the original installation. This Warranty only extends through the first installation of the product and terminates if the product is moved or reinstalled at a new location.

HOW LONG DOES COVERAGE LAST?

Item	Period of Coverage
	Commercial		Residential
Heat Exchanger	5 Years*		10 Years*
All other Parts and	5 Years*		5 Years*
Components
Reasonable Labor		1 Year

*Important

Period of coverage is 3 years from date of purchase when used as a circulating water heater within a hot water circulation loop, when the water heater is in series with a circulation system and all circulating water flows through the water heater.

WHAT WILL RINNAI DO?

Rinnai will repair or replace the product or any part or component that is defective in materials or workmanship, except as set forth below: Rinnai will pay reasonable labor and shipping costs to repair the product. All repairs must be performed using genuine Rinnai parts. All repairs or replacements must be performed by an individual or servicing company that is properly trained, state qualified or licensed to do this type of repair.

Replacement of the product or replacement of the heat exchanger may be authorized by Rinnai only. Rinnai does not authorize any person or company to assume for it any obligation or liability in connection with the replacement of a product or heat exchanger. If Rinnai determines that repair of a product is not possible, Rinnai will replace the product with a comparable product, at Rinnai’s discretion. If a component or product returned to Rinnai is found to be free of defects in material or workmanship, or damaged by improper installation or damaged during return shipping, the warranty claim for product, parts and labor may be denied.

Rinnai America

FF Models

L I M I T E D W A R R A N T Y

Rinnai Water Heater Warranty031705COMM-V2

HOW DO I GET SERVICE?

Simply contact a qualified Service Dealer or Installer for the repair of products under this Warranty.

Failure to use a qualified Service Dealer or Installer to provide repair service may void the

Warranty. For the name of the qualified Service Dealer or Installer nearest you, please contact the company that installed the water heater, or;

•Your local HVAC/plumbing dealer, gas service technician or place of purchase

•Visit the Rinnai website www.rinnai.us

•Call Rinnai at 1-800-621-9419 or write to Rinnai, 103 International Drive, Peachtree City, Georgia 30269

Proof of purchase is required to obtain warranty service. You can show proof of purchase with a dated sales receipt, by completing and mailing the enclosed Warranty registration card within 30 days of purchasing the product or by registering online at www.rinnai.us . Please complete the

Warranty registration either online or mail it to Rinnai at the address shown on the card.

Receipt of warranty registration by Rinnai will constitute proof-of-purchase for this product. However, Warranty registration is not necessary in order to validate this Warranty.

WHAT IS NOT COVERED?

This Warranty does not cover any failures or operating difficulties due to accident, abuse, misuse, alteration, misapplication, acts of God, improper installation, improper maintenance or service, inadequate water quality, scale buildup, freeze damage or for any other causes other than defects in materials or workmanship. This warranty does not apply to any product whose serial number or manufacture date has been defaced. This Warranty does not cover any product when used as a pool or spa heater. (See Water Quality in Care & Lime Section.)

Rinnai is not liable for any special, incidental, indirect or consequential damages that may arise, including damage to person or property, loss of use, failure to install drain pan under unit, or inconvenience. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation may not apply to you.

LIMITATION ON IMPLIED WARRANTIES

Any implied warranties of merchantability and fitness arising under state law are limited in duration to the period of coverage provided by this limited Warranty, unless the period provided by state law is less. Some states do not allow limitations on how long an implied Warranty lasts, so the above limitation may not apply to you.

This Warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

Rinnai America

FF Models

C O N T E N T S

Specifications................................................................................	2
Limited Warranty........................................................................	3,4
Owner’s Installation Information....................................................	6
Features of Your New Water Heater.............................................	7
Safety Issues.................................................................................	8
Basic Operation.............................................................................	9
About Hot Water.........................................................................	10
Scalds-First Aid...........................................................................	10
General Controller Information....................................................	11
Remote Controller Operation......................................................	12
Deluxe Controller.....................................................	13,14,15,16,17
Controllers Set Pattern/Temperature Tables...............................	18
Error Messages......................................................................	19,20
Maintenance & Service Information.......................................	21,22
Trouble Shooting and Common Questions.................................	23
For Your Safety Read Before Operating.....................................	23
Operating Instructions.................................................................	24
Care & Lime Condition Warning ................................................	24
Installer’s Instructions ...........................................................	25-50

Rinnai America

FF Models

O W N E R ’ S I N S T A L L A T I O N I N F O R M A T I O N

All Rinnai water heater(s) MUST be installed by a state qualified or licensed contractor. Failure to comply with state and local codes pertaining to water heater installations may void the warranty on your new water heater(s). It is the responsibility of the person having the water heater installed to ensure the installing contractor has proper licences and permits for installing water heater(s) in your location. In addition to licensing and permits, Rinnai encourages all installing contractors to attend a product knowledge class before installing any of our water heaters to help insure maximum customer satisfaction and maximum warranty coverage. Failure to comply with state and local codes may result in non-compliance and may void the warranty of the water heater(s).

This appliance must be installed in accordance with local codes, or in the absence of local codes, the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or the CSA B149.1, Natural Gas and Propane Installation Code.

Install this product indoors ONLY, DO NOT install outdoors.

Do Not use this appliance if any part has been underwater. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been underwater.

Detailed instructions on the proper installation practices to follow for the installation of your new hot water heater(s) are included at the back of this manual.

Rinnai America

FF Models

F E A T U R E S O F Y O U R N E W WATER HEATER

?The Rinnai Water Heater is one of the most advanced water heaters available. It supplies hot water continuously at the temperature preset in the unit or at the

temperature set on the optional remote controller(s). Installation of remote controller(s) are recommended for optimum performance.

?The Rinnai Water Heater never runs out of hot water. While electricity, water and gas supplies are connected, the Rinnai Water Heater produces hot water whenever the hot tap is open.

?The gas burner lights automatically when the hot water tap is opened, and goes out when the tap is closed. Ignition is electronic, there is no pilot light. When the hot water tap is off, no gas is used. You save energy and money with the Rinnai Water Heater.

?The temperature of the outgoing hot water is constantly monitored by a built in sensor. If the temperature of the outgoing water rises to more than 6 degrees above the selected temperature (shown on the digital remote control) the gas burner will automatically go out. The gas burner will re-ignite once the outgoing hot water temperature falls below the selected temperature.

?Built into the microprocessor of the Rinnai Water Heater is the ability to LIMIT THE MAXIMUM TEMPERATURE of the hot water supplied by the Rinnai Water Heaters.

Without the connection of a remote controller(s), the Rinnai Water Heater is preset to deliver water at 120OF (Residential) and 140OF (Commercial).

?Residential Unit: With the remote controller(s) the water temperature is adjustable from 98 to 140OF. The water temperature cannot be set to a temperature other than

120OF without the use of a remote controller unit.

?Commercial Unit: With the remote controller the water temperature is adjustable up to 185OF. The water temperature cannot be set to a temperature other than 140OF without the use of a remote controller unit.

?Error messages are displayed on the optional remote controller(s), simplifying service calls.

?The Rinnai Water Heater incorporates a device to minimize temperature fluctuations (cold water sandwich effect) when the water is off, then on again. This effect can be eliminated by installing the Rinnai Water Heaters with a circulation loop with a small storage tank.

?The sound (noise) level from the Rinnai Water Heaters is very low.

?The Rinnai Water Heater is a very compact direct vented device. It saves valuable floor and wall space.

Rinnai America

FF Models

	100oF
ON! COLD	140oF

HOT

S

O

L

V

E

N

T

	98oF
ON! COLD	110oF	ON! COLD

HOT

HOT

B A S I C O P E R A T I O N

1 Adjusting Temperature

The outlet water temperature of the Rinnai Water Heater can only be adjusted by

the user using the remote controller(s). To adjust the setpoint temperature of the Rinnai Water Heater, all hot water taps must be closed, and all circulating

pumps turned off (where applicable). The temperature displayed on this remote controller will also be displayed on all other remote controller(s).

NOTE: TEMPERATURE CANNOT BE ADJUSTED EXCEPT BETWEEN 98°F AND 110 °F WHEN ANY HOT WATER TAP IS OPEN.

2	To take control of the Rinnai Water Heater
	all hot water taps must be closed. Press
	the "Priority button" on the Controller you
	want to set the temperature with, and
	the green "Priority" indicator light will

	3	Simply press the	or	button
		until the required temperature is

displayed on the Digital Monitor.

There is a hot water scald potential if the thermostat is set to high.

NOTE: CHECK LOCAL CODES FOR THE MAXIMUM WATER TEMPERATURE SETTING ALLOWED WHEN USED IN NURSING HOMES, SCHOOL, DAY CARE CENTERS, AND ALL OTHER PUBLIC APPLICATIONS.

4

ON! COLD

HOT

glow. This indicates that the Rinnai Water Heater is ready to supply hot water at the set temperature as soon as a tap is opened.

Note: Rinnai Water Heater will not provide hot water instantly at the hot water fixtures. Any cold water existing in the hot water lines must be purged first.

CHECK WATER

TEMPERATURE BEFORE

ENTERING SHOWER OR

BATH.

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To operate the Rinnai Water Heater simply turn any hot water tap on. This will automatically light the burner providing hot water at the preset temperature. If the optional remote controller(s) have been installed, the red “IN USE” indicator will glow on all remote controller(s).

NOTE: If a newly installed unit has not been powered for at least six hours then the temperature will return to the default setting if power is interrupted.

FF Models

A B O U T H O T W A T E R

Hot Water Is Dangerous, especially for the young and the elderly or the infirm. The Rinnai Water Heater allows you to precisely control the temperature of your hot water, ensuring safe hot water temperatures.

Water Temperatures over 125°F can cause severe burns instantly or death from scalds.

Hot Water can cause first degree burns with exposure for as little as:

3 seconds at 140 °F

20 seconds at 130 °F

8 minutes at 120 °F

Test the temperature of the water with your elbow before placing a child in the bath or shower.

Do not leave a child or an infirm person in the bath unsupervised.

BURN

S c a l d s - F i r s t A i d

1)Remove clothing; Remove all wet clothing, quickly. Wet clothing retains the heat.

2)Apply cold water for 30 minutes; Immediately submerge the burnt area in cold water for 30 minutes to reduce the heat in the skin, preventing deeper burning. Never use butter, oils or ointment to cover the burn. They may retain the heat.

3)Keep the scalded person warm; Place a blanket around the person.

4)Seek Medical Advice; Call your medical advice hotline and describe the scald, follow their directions.

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FF Models

G E N E R A L C O N T R O L L E R I N F O R M AT I O N

REMOTE CONTROLLERS IDENTIFICATION

MC-91-1US (comes with the unit)

MC-100V-1US (optional)

BC-100V-1US (optional)

The controller(s) for the Rinnai Water Heater allow the customer to control the functions of the water heater and to diagnose certain fault conditions

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FF Models

R E M O T E C O N T R O L L E R O P E R AT I O N

DIAGNOSTIC USE OF CONTROLLER

1.To Display Maintenance Codes: Press ‘On/Off’ button. To sequence through stored maintenance codes, press ‘On/Off’ followed by the thermostat button.

2.To Display Water Flow through water heater: Press thermostat button, hold for 2 seconds and simultaneously press ‘On/Off’ button.

3.To display Outlet Water Temperature: Press

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FF Models

D E L U X E C O N T R O L L E R

ABOUT THE DELUXE CONTROLLER (MC-100V-1US)

Digital Monitor

Indicates the selected water temperature. Error messages flash in the event of a failure.

In Use Indicator

Indicates that a hot water tap is open and that control of the temperature is taken at another controller.

Water Temperature Indicator

Indicates the selected hot water temperature.

Clock

12 Hour AM / PM clock. In the event of a fault, codes for error messages will flash here.

Call

Allows user to contact another controller. Can be used as a communication channel for errands or in emergency situations.

Thermostat

Increases or decreases the desired water temperature.

Function

Enables the user to set the clock and sound volume functions.

Priority

Pressing takes control of the water temperature by this controller only when all taps are open.

ON/OFF

Used to switch the water heater on and off.

NOTE: With power interruption, water heater will automatically default to the ON position to provide hot water.

D E L U X E B AT H R O O M C O N T R O L L E R

A B O U T T H E T H E D E L U X E B AT H R O O M C O N T R O L L E R ( B C - 1 0 0 V- 1 U S )

In Use Indicator

Indicates that a hot water tap is open and that control of the temperature is taken at another controller.

Priority

Pressing takes control of the water temperature by this controller only when all taps are off.

Call

Allows user to contact another controller. Can be used as a communication channel for errands or in emergency situations.

Clock

12 Hour AM / PM clock. In the event of a fault, codes for error messages will flash here.

Water Smart / Bath Fill Indicator

Used to select Water Smart / Bath Fill Function.

ON/OFF

Used to switch the water heater on and off.

Water Smart / Bath Fill

Used to select Water Smart / Bath

Fill Function.

Power Save

Indicates that the remote is in the energy saving mode.

Thermostat	Sound Volume	Water Volume
Increases or decreases the desired	Used to select the voice prompt	Used to select Water Smart / Bath
water temperature.	volume.	Fill volumes.

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FF Models

D E L U X E B AT H R O O M C O N T R O L L E R

Setting the Sound Volume

The voice prompt sound volume for all Deluxe Controller(s) can be set individually. To do this, press the ‘Sound Vol.’ button. The default voice prompt sound volume is medium, each subsequent press of the ‘Sound Vol.’ will cycle through the available volume settings in the following order: High Voice - Off Voice (beep) - Off Sound (no beep) - Low Voice - Medium Voice.

Adjusting Temperature

Simply press the ‘Hot water temp.’ or

buttons until the required temperature is displayed on the Digital Monitor.

To Operate the hot water unit, open any hot water tap. This will automatically light the burner providing hot water. The red flame of the water heater ‘In Use Indicator’ will illuminate on the Temperature Controller.

Once the hot water is running, if the set temperature is either too hot or cold, press the

‘hot water temp. or buttons until the desired temperature is reached.

NOTE: TEMPERATURE CANNOT BE ADJUSTED EXCEPT BETWEEN 98°F AND 110°F WHEN ANY HOT WATER TAP IS OPEN.

CHECK WATER TEMPERATURE BEFORE USE.

A parent should always check the temperature before a child is placed in contact with hot water.

NOTE: Avoid getting water in the speaker as this may cause damage.

Rinnai America

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FF Models