Rinnai MC-100V-1-S User's Manual

Rinnai Water Heater User's Manual - MC-100V-1-S.
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HYDRONIC 
FURNACES

DIRECT VENT

WALL FURNACES

THE RINNAI LUXURY SERIES 

TANKLESS WATER HEATERS

ENERGY-EFFICIENT HOT WATER NEVER LOOKED SO GOOD

WHOLE-HOUSE ANd COMMERCIAL TANkLESS WATER HEATING SOLUTIONS

R-CNWH-E-12r10  © 2011 Rinnai America Corporation 5M 04/2011

FOR MORE INFORMATION ON RINNAI pROdUCTS

OTHER RINNAI LITERATURE AvAILABLE

Rinnai America Corporation

103 International Drive

Peachtree City, GA 30269

Toll Free 1-800-621-9419

Phone: 678-829-1700 • Fax: 678-364-8643

Visit our Website www.rinnai.us 

E-mail: marketing@rinnai.us

RINNAI 

GREEN ADVANTAGES

MC-100V-1-S 
Deluxe Digital 
Controller 

BC-100V-1US-S Bath-Fill 
Digital Controller 

MC-91-1-S Digital 
Controller Integrated in 
Internal Unit; Standard 
Digital Controller for 
Exterior Unit

More Than 30 Million Installations Worldwide Make Rinnai #1!
At  Rinnai,  we’ve  sold  more  tankless  water  heaters  worldwide  than  anyone  else.  Our  complete 
commitment to safety, quality, support and the environment has also made us #1 in the U.S. market.
Tomorrow’s Innovation Today
As the leading manufacturer of gas heating products worldwide, Rinnai continues innovating 
to ensure a greener environment. Rinnai’s superior heating and hot water technologies deliver 
greater  effi ciency  and  reliability,  so  everyone  benefi ts  –  with  environmental  preservation  and 
energy conservation that results in a better planet for us all. 

INTERIOR ROOF OR WALL VENTING 

The Rinnai can be vented vertically or horizontally.

CUSTOM INSTALLATIONS to blend 
in with the interior (shown at left with 
optional pipe cover) or to be recessed on 
an exterior wall of the home.

 

EXTERIOR WALL-MOUNT 
installations require no 
additional venting accessories.

Accessories
Rinnai’s  line  of  digital  controllers  allows  you  to  set  water 
temperature precisely for multiple locations in your home, analyze 
and  troubleshoot  the  water  heater,  and  even  automatically  fi ll 
your bath to a pre-set temperature and volume. (Note: the MC-91 
controller is integrated on the front panel of the RL Series interior 
units and comes standard with all RL Series exterior units.)
Flexible Installation
For interior installation, Rinnai units use a concentric venting 
system
  –  a  single  vent  assembly  featuring  an  inner,  metal 
vent  for  exhaust  gases  and  an  outer  PVC  or  metal  tube 
for  bringing  combustion  air  from  outdoors.  The  result:  a 
direct-vent,  sealed-combustion  system  that  offers  optimum 
safety, performance and ease of installation.
Exterior units can be installed in a recessed enclosure, which can be 
painted or textured to match your home’s panel or brick siding.
Multiple Units 
If you need more than one unit for your larger home, spa or 
body spray shower, Rinnai’s EZConnect® feature allows you to 
link two units with a simple cord. For even larger applications, 
your installer can place up to 25 units in parallel.

Other benefi ts include:
• Integrated Condensate 
  Collector: ensures 

condensation doesn’t drain 
back into unit, and reduces 
cost of venting.

• High-Altitude Operation: all 

RL Series units can be adjusted 
for use up to 10,200 ft.

Rinnai is continually updating and improving products; therefore, specifi cations are subject to change without 
prior notice. Local, state, provincial and federal codes must be adhered to prior to and upon installation.

0

1

2

3

4

5

6

7

8

9

1 0

Tankless Water Heater - Maximum Flow Curves

0

25

50

75

100

125

Temperature Rise (˚F)

Ho

t W

ate

r F

low

 Ra

te 

(gp

m)

150

RL94i/e (NG)

RL94i (LP)

RL75i/e

**  Units come with a default maximum temperature of 120° F for increased safety and code compliance. An option to increase 

the max temp to 140° F is also available.

***  To achieve temperatures over 140° F, an MCC-91 commercial controller must be purchased separately.
†   0.4 GPM activation rate for RL Series

fl exibility + control

HOT WATER FLOW CHART

MODEL NO.

RL94i/e

RL75i/e

TEMP. RISE (°F)

GPM

GPM

140

2.4

2.1

135

2.5

2.2

130

2.6

2.3

125

2.7

2.4

120

2.8

2.5

115

2.9

2.6

110

3.0

2.7

105

3.2

2.9

100

3.3

3.0

95

3.5

3.2

90

3.7

3.3

85

3.9

3.5

80

4.2

3.8

75

4.4

4.0

70

4.7

4.3

65

5.1

4.6

60

5.5

5.0

55

6.0

5.5

50

6.6

6.0

45

7.4

6.7

40

8.3

7.5

35

9.4

7.5

30

9.4

7.5

25

9.4

7.5

20

9.4

7.5

 

Interior Residential/Commercial Models 
Models available in Natural Gas or Propane 

RL75i 

RL94i 

Dimensions

14” W x 23” H x 10“ D

14” W x 23” H x 10“ D

Weight

51 lbs

53 lbs

Maximum/Minimum Gas Rate 

(Input BTU’s)

180,000 /9,900 (NG)

180,000/10,300 (LP)

199,000/9,900 (NG) 

190,000/10,300 (LP)

Hot Water Capacity Range

0.26 to 7.5 GPM†

0.26 to 9.4 GPM†

Energy Factor (NG and LP)

.82

.82

Thermal Effi ciency (NG and LP)

NA

NA

Temperature Range (Min - Max) 

Residential**

Commercial***

98° F - 140° F

98° F - 160° F

98° F - 140° F

98° F - 185° F

Standard Digital Controller

MC-91-1

Optional Controller

MC-100V-1, BC100V-1, MCC-91-1

Exterior Residential/Commercial Models
Models available in Natural Gas or Propane 

RL75e

RL94e 

Dimensions

14” W x 23” H x 10“ D

14” W x 23” H x 10“ D

Weight

51 lbs

51 lbs

Maximum/Minimum Gas Rate 

(Input BTU’s)

180,000 /9,900 (NG)

180,000/10,300 (LP)

199,000/9,900 (NG)

199,000/10,300 (LP)

Hot Water Capacity Range

0.26 to 7.5 GPM†

0.26 to 9.4 GPM†

Energy Factor (NG and LP)

.82

. 82

Thermal Effi ciency (NG and LP)

NA

NA

Temperature Range (Min - Max) 

Residential**

Commercial***

98° F - 140° F

98° F - 160° F

98° F - 140° F

98° F - 185° F

Standard Digital Controller

MC-91-1

Optional Controller

MC-100V-1, BC100V-1, MCC-91-1

endless options

Luxury Series Warranty

RL75i

RL75e

RL94e

Warranty  (some  restrictions  apply):  Heat  exchanger  limited 
warranty 12 years residential; 3 years when used in certain recirculating 
systems; 10 years when used with a Rinnai hydronic furnace; 5 years 
in commercial applications. All other parts: 5 years. *Labor: 5 years 
residential  and  2  years  commercial  for  Luxury/Ultra  models  when 
registered within 30 days of installation, 1 year all other applications. 
For more warranty details, visit www.rinnai.us or call 1-800-621-9419.

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