Rinnai RSC199i User manual

Tankless Water Heater (With Pump)
Installation and Operation Manual
ANSI Z21.10.3  CSA 4.3
INTERNAL INDOOR MODELS:
RSCiREUNPFFUSA
RSCiREUNPFFUSA
EXTERNAL OUTDOOR MODELS:
RSCeREUNPWUSA
RSCeREUNPWUSA
CUS
U334-0777(00)
06000012350449

2 Rinnai Tankless Water Heater Installation and Operation Manual
WARNING
If the information in these instructions is not followed exactly, a re or explosion may result
causing property damage, personal injury, or death.
• 

• WHAT TO DO IF YOU SMELL GAS
– 
– 
– 

– 
• 

Assurez-vous de bien suivre les instructions données dans cette notice pour réduire au
minimum le risque d’incendie ou d’explosion ou pour éviter tout dommage matériel, toute
blessure ou la mort.
• 

• QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ :
– 
– 

– 

– 
• 

AVERTISSEMENT
Full-length French and Spanish versions available online at rinnai.us

Rinnai Tankless Water Heater Installation and Operation Manual 3
Contents
1. Welcome .......................................................................................................................................... 5
2. Safety ............................................................................................................................................... 6
  7
  7
3. About the Water Heater .................................................................................................................. 9
  9
  10
  11
  12
  13
  15
4. Install the Water Heater ................................................................................................................ 17
  17
  18
  19
  24
  26
  50
  51
  52
  54
  57
  60
  61
  63
5. Operation .......................................................................................................................................65
 65
 67
 68
 69
 70

4 Rinnai Tankless Water Heater Installation and Operation Manual
 72
 75
6. Maintenance .................................................................................................................................. 81
  81
  83
  85
  86
7. Appendices ................................................................................................................................... 87
  87
  89
  90
  91
  92
  93
8. Warranty ........................................................................................................................................ 94

Rinnai Tankless Water Heater Installation and Operation Manual 5
ANSI 
Institute
BTU 
DHW 
GPM 
LPG 
NG Natural Gas
PP 
PRV 
PSI 
WC 
To The Consumer
• 


• 
• 
-



• 

• -
-


Acronyms and Abbreviations








To The Installer
• 




• 

– 
– 

– 

– 

– 


• 



• 

• 



1.1. WelcomeWelcome


WARNING AVERTISSEMENT
6 Rinnai Tankless Water Heater Installation and Operation Manual
• -

-



• 
-


• QUE FAIRE SI VOUS SENTEZ UNE
ODEUR DE GAZ :
– 
– 


– 

-

– 


• 



• 



• 



• Do not store or use gasoline or other


• WHAT TO DO IF YOU SMELL GAS:
– 
– 

– 


– 

• -



• 


2.2. SafetySafety

WARNING
CAUTION
WARNING
Rinnai Tankless Water Heater Installation and Operation Manual 7
2.2 Safety Precautions



-

-


• -



• 



• -






• -

• -

– 󰀨

󰀨


– 󰀨-


– 󰀨


󰀨








DANGER










2.1 Safety Symbols

8 Rinnai Tankless Water Heater Installation and Operation Manual
• -

-


• 

-


• 

• Do not store or use gasoline or other


(Ne pas entreposer ni utiliser d’essence
ou ni d’autres vapeurs ou liquides inam-
mables à proximité de cet appareil ou de
tout autre appareil.)
• 

• 

• 

• 


• 




– -



-


• 



-


 (N’utilisez pas cet appareil s’il a été
plunge dans l’eau, même partiellement.
Faites inspecter l’appareil par un licence
professionnelle et remplacez toute partie
du système de contrôle et toute com-
mande qui ont été plongés dans l’eau.)
• 

• 
󰀨󰀨

 (En cas de surchaue ou si l’alimen-
tation en gaz ne s’arrête pas, fermez
manuellement le robinet d’arrêt de l’ad-
mission de gaz.)
• -


• 

• 


• 

• 
-









Rinnai Tankless Water Heater Installation and Operation Manual 9
3.3. About the Water HeaterAbout the Water Heater
3.1 Front View
Indoor Outdoor

• 
• 
• 
• 
• 
• 
Controller

Vent
 Exhaust

Figure 1: Front View

10 Rinnai Tankless Water Heater Installation and Operation Manual
3.2 Bottom View
Gas
Hot Water
Outlet
Cold Water
Inlet


Figure 2: Bottom View

Rinnai Tankless Water Heater Installation and Operation Manual 11
3.3 Components
Air Intake

Ignition Unit

Integrated



Flue Gas Exhaust
Air Inlet Filter

Venturi



Intake
Exhaust


Controller removed
for clarity.

Figure 3: Components

12 Rinnai Tankless Water Heater Installation and Operation Manual
3.4 Specifications
Indoor Units Outdoor Units
RSC199i RSC160i RSC199e RSC160e
Minimum Gas Consumption
Btu/h 
Maximum Gas
Consumption Btu/h    
Flow Rate1
(Min-Max) 
      
Max Flow Rate
with Parameter Adjustment    
Weight    
Sound Level    
Electrical Data
Normal 78 W 57 W 78 W 55 W
Standby 
Freeze Protection 150 W 172 W
Max Current 
Fuse 
Temperature Setting 

Bypass Flow Control 
Gas Supply Pressure2
Natural Gas 
Propane 
Type of Appliance 󰀩

Ignition System 
Electric Connections 

Water Supply Pressure 

Remote Control Cable 
ENERGY STAR® Qualied Yes
Complies with South Coast
Air Quality Management
District 14 ng/J or 20 ppm
NOx emission levels Yes
1

2 



Rinnai Tankless Water Heater Installation and Operation Manual 13
3.5 Dimensions

Indoor Models
(RSC199i and RSC160i)
       
Outdoor Models
(RSC199e and RSC160e)
       




Figure 4: Indoor Dimensions
Figure 5: Outdoor Dimensions

14 Rinnai Tankless Water Heater Installation and Operation Manual








Cold Inlet
Gas
Hot Outlet
Condensate
Drain 

 
Gas 
Cold Inlet 
Hot Outlet 
Condensate Drain 
 M33 Thread
3.5.1 Supply Connections




Figure 6: Supply Connections

Rinnai Tankless Water Heater Installation and Operation Manual 15
Product Product Description Image














Cartridge





-


Additional Controller

MC-601-W
MC-195T-US
MCC-91-2
MCC-601










-


-
-





3.6 Accessories






16 Rinnai Tankless Water Heater Installation and Operation Manual
Product Product Description Image










-


Motion Sensor


-
-




Rinnai Tankless Water Heater Installation and Operation Manual 17
4.4. Install the Water HeaterInstall the Water Heater
THIS SECTION IS INTENDED FOR THE
INSTALLER













4.1 Installation
Guidelines

guidelines:
• -


• -

-

• 





-




• 



-

• 
-





-
-
󰀨
• -



• 


-




• 
󰀨󰀨

 (En cas de surchaue ou si l’alimen-
tation en gaz ne s’arrête pas, fermez
manuellement le robinet d’arrêt de l’ad-
mission de gaz.)
• -

-



• Installation Guidelines
• 
• 
• Mount Water Heater to the Wall
• Vent Water Heater
• 
• 
• 
• 
• 
• 
• 
• 
• 

18 Rinnai Tankless Water Heater Installation and Operation Manual
DO NOT
• 


• -


• 




-
-



• 

• 

• 


• 

4.2 What You Will
Need
4.2.1 Items Included





• Rinnai Tankless Water Heater
• -

• 
• 


• 
• 
– Tankless Water Heater Installation

– 

– 

• 

• 





• 

4.2.2 Items Needed
(Field-Supplied)
• 
• 
• Wire Cutters
• 
• 
• 
• 
• 
• 

• 
• 
• 
Return)
• 
• 
• 
• 
• 
• 
• 
• Heat tape
• 
• 
• 
• 
• 
• 
• 
• Wire nuts
• 

Rinnai Tankless Water Heater Installation and Operation Manual 19
4.3 Choose an
Installation
Location









4.3.1 Water Quality
Guidelines











󰀨










SS
SS




󰀨

󰀨

4.3.2 Environment














󰀨





Regulation
Contaminant Maximum Level
Total Hardness 
 
Chlorides * 
Copper * 

Dioxide (CO2) 
Iron * 
Manganese * 
pH * 

Solids) * 
 


20 Rinnai Tankless Water Heater Installation and Operation Manual
4.3.3 Internal (Indoor) Water
Heaters
• 
-









• 




• 
-

• 
-



• 
-









4.3.4 External Water
Heaters and Vent
Terminations
• 


• 

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• 
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
• 
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
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