Rinnai R75LSe, R63LSe, R94LSe, R98LSe User Manual

4.7 (3)

Outdoor Tankless Water Heater

Operation and Installation Manual

R63LSe ..............

REU-VA2024WD

R75LSe ..............

REU-VA2528WD(A)

R94LSe ..............

REU-VA2535WD

R98LSe ..............

REU-VA3237W

R98LSe-ASME ...

REU-VA3237W-ASME

Table of Contents......................

2

Consumer Safety Information ...

4

Operating Instructions ...............

5

Maintenance..............................

12

Error Codes...............................

13

Installation Instructions..............

17

Consumer Support ....................

38

ANS Z21.10.3

 

CSA 4.3

 

R98LSe-ASME

This model has been built in accordance with

 

the requirements of the ASME Boiler and

 

Pressure Vessel Code and have received the

 

Certificate of Authorization from the National

 

Board. The heat exchanger on this unit has

 

the NB and HLW stamps

Table of Contents

Specifications .....................................................

 

3

Consumer Safety Information

 

 

Safety Definitions.............................................

 

4

Safety Behaviors and Practices ......................

 

4

Safety Features ...............................................

 

4

Description of Operation ...................................

 

5

Operating Instructions

 

 

Features Available on Remote Controllers

...... 5

Remote Controllers - Models........................

 

6,7

Setting the Temperature..................................

 

8

Temperature Options Without

 

 

a Remote Controller ........................................

 

8

Temperature Ranges.......................................

 

9

Setting the Sound Volume(Voice Prompt)

 

...... 9

Setting the Clock .............................................

 

9

Using the Water Smart /Bath Fill Function

....

10

Overview ...................................................

 

10

Setting the Water Volume .........................

 

10

Filling the Tub ...........................................

 

11

Setting Controller to Mute..............................

 

11

Maintenance

 

 

Cleaning ....................................................

 

12

Air Intake and Exhaust..............................

 

12

Motors .......................................................

 

12

Remote Controller.....................................

 

12

Lime / Scale Buildup .................................

 

12

Snow Accumulation ..................................

 

12

Visual Inspection of Flame........................

 

12

Error Codes

 

 

Error Code Table ......................................

13,14

Troubleshooting for Common Issues ............

 

15

Accessing Operating Information ..................

 

15

Water Quality .................................................

 

15

Flushing the Heat Exchanger ........................

 

16

(Error Code: LC or 00)

 

 

Installation Instructions ....................................

17

General Instructions .......................................

17

Clearances from Appliance ............................

18

Attachment of the Water Heater.....................

18

Electrical Connection......................................

19

Gas Piping

 

General Instructions .................................

19

Pipe Sizing Procedure - Example ............

20

Water Piping

 

General Instructions .................................

21

Pressure Relief Valve...............................

21

Freeze Protection.....................................

21

Freeze Protection Piping ................................

22

Recommended Piping for Basic Installation...23

Recommended Piping for

 

Circulation Systems........................................

24

Optional Piping for Circulation Systems.........

25

Flue Terminal Clearances

 

(ANS Z21.10.3 CSA 4.3)......................

26, 27

Additional Clearances - Vent Trminal.............

28

High Altitude Installations ...............................

29

Connecting Multiple Water Heaters................

29

Remote Controller Installation

 

Location ....................................................

30

Configurations ..........................................

30

Cable Lengths and Size ...........................

30

Mounting on the wall ................................

31

Connecting to the R75LSe, R94LSe, R98LSe,

and R98LSe-ASME .....................................

31

Connecting to the R63LSe .......................

32

Operating Instructions ....................................

33

Technical Data

 

Pressure Drop Curve......................................

34

Outlet Flow Data.............................................

34

Space Heating ................................................

35

Dimensions .....................................................

36

Ladder Diagram..............................................

37

Consumer Support

 

Warranty Information......................................

38

Limited Warranty .....................................

38, 39

2

VA Series Outdoor LS Manual

Specifications

Model

R63LSe

R75LSe

R94LSe

R98LSe

 

R98LSe-

 

 

ASME

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Minimum Gas Consumption Btu/h

22,200

15,000

 

19,000

 

 

 

 

 

 

 

 

 

Maximum Gas Consumption Btu/h

150,000

180,000

199,000

237,000

 

Hot water capacity (Min - Max) *

0.6 - 6.3 GPM

0.6 - 7.5 GPM

0.6 - 9.4 GPM

0.6 - 9.8 GPM

(2.3 - 24 L/min)

(2.3 - 28 L/min)

(2.3 - 35.5 L/min)

(2.3 - 37 L/min)

 

 

 

 

 

 

 

 

 

 

Hot water capacity, (45ºF rise)

5.3 GPM

6.6 GPM

7.4 GPM

8.7 GPM

 

(20 L/min)

(25 L/min)

(28 L/min)

(33 L/min)

 

 

 

 

 

 

 

 

 

 

 

Default Temperature Setting (no controller)

 

 

120º F (49º C)

 

 

 

 

 

 

 

 

 

 

 

 

Remote Controller Default Temperature Setting

 

 

104º F (40º C)

 

 

 

 

 

 

 

 

 

 

 

 

Maximum Temp Setting (Commercial **)

160º F (71º C)

 

185º F (85º C)

 

Maximum Temp Setting (Residential)

 

 

140º F (60º C)

 

 

 

 

 

 

 

 

 

 

 

 

 

Minimum Temperature Setting

 

 

98º F (37º C)

 

 

 

 

Weight

 

36.4 lb

46 lb

 

55 lb

 

 

(17 kg)

(21 kg)

 

(25 kg)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Efficiency Rating

 

 

 

83.0%

 

 

 

 

Noise level

 

 

 

49 dB (A)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Normal

36 W

50 W

55 W

 

72 W

 

Electrical

Standby

 

 

2 W

 

 

 

 

Consumption

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Anti-frost Protection

74 W

100 W

 

116 W

 

By-Pass Control

 

Fixed

 

Electronic

 

 

 

 

 

 

 

 

 

 

 

 

Minimum Gas Supply

Natural Gas

 

 

5.0 inch W.C.

 

 

 

 

Pressure

Propane

 

 

8.0 inch W.C.

 

 

 

 

 

 

 

 

 

 

 

 

 

Maximum Gas Supply

Natural Gas

 

 

10.5 inch W.C.

 

 

 

 

Pressure

Propane

 

 

13.5 inch W.C.

 

 

 

 

 

 

 

 

 

 

 

 

Type of Appliance

 

Temperature controlled continuous flow gas hot water system.

 

Operation

 

With or without remote controls, mounted in kitchen, bathroom, etc.

 

 

 

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 (Minimum 22 AWG)

 

 

 

 

 

 

 

 

 

 

*Minimum flow may vary slightly depending on the temperature setting and the inlet water temperature.

**for commercial and hydronic applications requiring higher temperatures.

Rinnai is continually updating and improving products. Therefore, specifications are subject to change without prior notice.

The maximum inlet gas pressure must not exceed the value specified by the manufacturer. The minimum value listed is for the purpose of input adjustment.

VA Series Outdoor LS Manual

3

Consumer Safety Information

Safety Definitions

This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or hurt you and others.

DANGER

WARNING

CAUTION

Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury. It may also be used to alert against unsafe practices.

Safety Behaviors and Practices

 

 

Safety Features

Overheat: The appliance will automatically shut down when the appliance exceeds a predetermined temperature.

Flame Failure: The appliance will automatically shut down if the burner flame is extinguished.

Power Failure: The appliance will cut off the gas if it loses electrical power.

Power Surge Fuse: A glass fuse protects against overcurrent. If the fuse blows then all indicator lamps will be off.

Fusible Link: In case the overheat feature does not prevent the temperature from rising then the fusible link will break shutting off the appliance.

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VA Series Outdoor LS Manual

Description of Operation

The Rinnai water heater is one of the most advanced water heaters available. It provides a continuous supply of hot water at a preset temperature. This appliance is direct vent where air is brought in from the outside and combustion gases are exhausted to the outside.

While electricity, water, and gas supplies are connected, the Rinnai water heater produces hot water whenever a hot water tap is open.

Ignition is electronic. There is no pilot light consuming gas while the water heater is not being used. The gas burner lights automatically when the hot water tap is opened and goes out when the tap is closed.

Installation of the remote controller is highly recommended. The remote controller can set the temperature within a specific range and can provide error codes to diagnose any problems.

The temperature of the outgoing hot water is constantly monitored. The Rinnai water heater may adjust the water flow in order to maintain the temperature setting. The water flow may vary from summer to winter due to the difference in ground water temperature.

Operating Instructions

Features Available on Remote Controllers

The MC-91-1US remote controller is supplied with the appliance. Additional functions are available through the use of optional controllers.

Features

Call

Clock

Error Codes

Function

In Use Indicator

ON/OFF Button

Power Save

Priority Button /

Indicator

Sound Volume

Temperature Display

Thermostat

Water Smart / Bath Fill

Button / Indicator

Water Volume

91-MC

91-MCC

100-MC

100-BC

502-MC

 

 

 

 

 

Description

Sends a short series of beeps to all controllers in the system. It is not an intercom.

12 hour AM/PM clock.

When a fault is detected an error code flashes at the temperature display on models MC-91, MCC-91, and MC-502; and flashes at the clock display on models MC-100 and BC-100.

Used on this model to set the clock or sound volume.

Indicates that hot water is being supplied (i.e. a hot water tap is open)

Used to turn the water heater ON or OFF.

Allows the remote controller to be in an energy saving mode.

Indicates that this controller is setting the temperature . Priority can be switched to another controller by pressing its Priority Button when no hot water is running.

Used to adjust the voice prompt volume.

Shows the temperature setting.

Increases or decreases the temperature setting.

Used to select the Water Smart / Bath Fill Function to fill a bath with a predetermined volume of water.

Used to select the water volume for the Water Smart / Bath Fill Function.

VA Series Outdoor LS Manual

5

Remote Controllers - Models

MC-91-1US & MCC-91-1US

Dimensions (inches): 3.5 W x 4.75 H x 0.75 D

The MC-91 controller allows a maximum temperature setting of 140º F. The MCC-91 controller is for commercial and hydronic applications requiring higher temperatures. When the MCC-91 controller is connected, these higher temperatures are available on all controller models in the system. Refer to the section on temperature ranges.

In Use

Indicator

Priority

Indicator

Temperature

Display

Priority

Button

Thermostat

ON/OFF

Button

MC-502RC-1US-S * (Wireless)

Dimensions (inches): 4.33 W x 5.90 H x 1.16 D

Temperature

Display

Thermostat

ON/OFF

Button

*Requires the transceiver, MC-502RC-1US-M, to be connected to the water heater.

Priority

Indicator

In Use

Indicator

Priority

Button

Refer to the MC-502RC-1US-S manual and the Wireless Controller Installation Instructions for complete details on features, operation, and installation.

6

VA Series Outdoor LS Manual

Rinnai R75LSe, R63LSe, R94LSe, R98LSe User Manual

Remote Controllers - Models

BC-100V-1US

Dimensions (inches): 8.0 W x 4.125 H x 0.875 D

In Use

Temperature

Water Smart

Indicator

Display

Bath Fill Indicator

Priority

ON/OFF

Button and

Button

Indicator

 

 

Water Smart

Call

Bath Fill

 

Button

Clock

Power Save

 

 

Water Volume

Thermostat

Sound Volume

 

MC-100V-1US

Dimensions (inches): 5.0 W x 4.75 H x 0.75 D

Thermostat

In Use

Indicator

Function

Temperature

Display

 

Priority Button

Clock

and Indicator

 

ON/OFF

Call

Button

 

VA Series Outdoor LS Manual

7

Setting the Temperature

DANGER

1. Press the “Priority button” on the remote controller. The green Priority light will glow indicating that this controller is controlling the temperature and that the Rinnai water heater is ready to supply hot water.

The priority can only be changed while no hot water is running.

2.Press the or buttons to obtain the desired temperature setting.

All hot water sources are able to provide water at this temperature setting until it is changed again at this or another remote controller.

Temperature Options Without a Remote Controller

The default temperature setting for this appliance installed without a remote controller is 120º F (49º C). If desired the temperature setting can be changed to 140º F (60º C) by adjustment of a dip switch.

Set dip switch 5 to ON to obtain 140º F water temperature setting.

Set dip switch 5 to OFF (default) to obtain 120º F water temperature setting.

120º F (49º C)

140º F (60º C)

 

 

 

 

 

 

 

 

 

 

 

 

 

Switch No.

 

 

Switch No.

 

 

 

 

 

 

ON

 

 

 

 

 

 

ON

 

 

O

 

 

 

 

O

 

 

 

 

 

1

 

 

 

 

 

1

 

 

F

 

 

 

2

 

 

F

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

 

 

 

 

 

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

VA Series Outdoor LS Manual

Temperature Ranges

This water heater will attempt to provide hot water at the temperature even when the water flow is varied or when more than 1 tap is in use. The water heater can deliver water at only one temperature setting at a time. The available temperatures for a given model are provided below.

Model

 

 

 

Temperature Settings Available (ºF)

 

 

 

*

*

*

R63LSe

98

100

102

104

106

108

110

115

120

125

130

135

140

150

160

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R75LSe

98

100

102

104

106

108

110

115

120

125

130

135

140

150

160

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R94LSe

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R98LSe

98

100

102

104

106

108

110

115

120

125

130

135

140

150

160

185

R98LSe-ASME

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Temp in Celsius ºC

37

38

39

40

41

42

43

46

49

52

54

57

60

66

71

85

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*These settings require the MCC-91 controller. When the MCC-91 controller is connected, these higher temperature are available on all controller models in the system.

If a space heating application requires higher than 140º F then a mixing valve shall be installed to temper the water temperature to 140º F or less for domestic use.

Suggested temperatures are

Kitchen

120 ºF (49º C)

Shower

98º - 110º F (37º - 43º C)

Bath Fill

102º - 110º F (39º - 43º C)

These temperatures are suggestions only.

Temperature lower than 98º F (37º C) can be obtained at the tap by mixing with cold water.

To change the temperature scale from Celsius to Fahrenheit or vice versa, press and hold the “On/Off” button for 5 seconds while the water heater is OFF.

Setting the Sound Volume (Voice Prompt)

MC-100V Press the “Function” button to adjust the voice prompt volume. The default sound volume is set to Medium. Each subsequent press of the or button cycles through the volume levels in the order below.

BC-100V Press the “Sound Vol.” button to adjust the voice prompt volume. The default sound volume is set to Medium. Each subsequent press of the button cycles through the volume levels in the order below.

Setting the Clock

MC-100V Press the “Function” button twice within 10 seconds to set the clock. Press the or button to reach the desired time. The clock on the BC-100V automatically shows

the time which has been set on the MC-100V.

VA Series Outdoor LS Manual

9

Using the Water Smart / Bath Fill Function

Overview

This function is exclusive to the BC-100V remote controller. The bath fill function allows the consumer to fill a tub with a preset volume of water at a preset temperature. This is done by pressing the bath fill button on the BC-100V controller while no hot water is flowing and then opening only the hot water tap. The water heater will cease the hot water flow when the preset volume has been reached. The hot water tap should then be closed and the bath fill button pressed.

The temperature settings for the bath fill function are limited to those in the table below.

 

 

Bath Fill Temperature Settings Available

 

 

 

 

 

 

 

 

 

 

 

 

ºF

98

 

100

102

104

106

108

110

115

 

120

 

 

 

 

 

 

 

 

 

 

 

 

ºC

37

 

38

39

40

41

42

43

46

 

49

 

 

 

 

 

 

 

 

 

 

 

 

Setting the Water Volume

The default volume is set to 25 gallons. The volume can be set between 10 and 120 gallons.

1. Press the “Priority button” on the remote controller. The green Priority light will glow indicating that this controller is controlling the temperature and that the Rinnai water heater is ready to supply hot water.

2.Press the “Temp” or buttons to obtain the desired temperature

setting.

3.Press the “Water Vol.” or buttons to obtain the desired

water volume in gallons.

10

VA Series Outdoor LS Manual

Using the Water Smart / Bath Fill Function

Filling the Tub

ON! COLD

HOT

ON! COLD

HOT

1.Press the “Water Smart / Bath Fill” button once. The button will illuminate, a tone will sound, and the word “Bath” will appear next to the temperature setting.

2.The voice prompt will announce “The hot water system is ready. Open the hot water tap.”

Open the hot water tap. The “In Use” indicator will illuminate on all controllers. The hot water will begin to flow.

3.When the preset volume of water has been produced then

the water flow will cease

the “Water Smart / Bath Fill” button will flash

a tone will sound

the voice prompt will announce, “Bath fill is complete. Turn off the bath hot water tap and push the Bath Fill button.”

4. Turn off the bath hot water tap and push the Bath Fill button. The water heater will not allow hot water to flow from any source until the “Water Smart / Bath Fill” button is pushed.

The button light will go out and the word “Bath” will disappear from the display.

Setting Controller to Mute

Models MC-91 and MCC-91

To eliminate the beeps when keys are pressed or to turn the beeps back on, press and hold both the and buttons until a beep is heard (approximately 5 seconds).

VA Series Outdoor LS Manual

11

Maintenance

Repairs should be performed by a qualified service technician. The appliance should be inspected annually by a qualified service technician. Verify proper operation after servicing.

Cleaning

It is imperative that control compartments, burners, and circulating air passage ways of the appliance be kept clean.

Clean as follows:

1.Turn off and disconnect electrical power. Allow to cool.

2.Remove and clean the water inlet filter.

3.Remove the front panel by removing 4 screws.

4.Use pressurized air to remove dust from the main burner, heat exchanger, and fan blades. Do not use a wet cloth or spray cleaners on the burner. Do not use volatile substances such as benzene and thinners. They may ignite or fade the paint.

5.Use soft dry cloth to wipe cabinet.

Air Intake and Exhaust

The air intake and exhaust should be inspected at least annually for blockages or damage.

Motors

Motors are permanently lubricated and do not need periodic lubrication. Keep fan and motor free of dust and dirt by cleaning annually.

Remote Controller

Use a soft damp cloth to clean the remote controller. Do not use solvents.

Lime/Scale Buildup

If you receive Error Code “LC”, refer to the procedure,

Flushing the Heat Exchanger. Refer to the section on

Water Quality to see if your water needs to be treated or conditioned. (When checking maintenance code history “00” is substituted for “LC”.)

Snow Accumulation

Keep the area around flue terminal free of snow and ice. The appliance will not function properly if the intake air or exhaust is impeded (blocked or partially blocked) by obstructions.

Visual Inspection of Flame

The burner must flame evenly over the entire surface when operating correctly. The flame must burn with a clear, blue, stable flame. See the parts breakdown of the burner for the location of the view ports.

The flame pattern should be as shown in the figures below.

12

VA Series Outdoor LS Manual

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