Rinnai R75LSI Manuel D’Utilisation

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VA Series Indoor LS Manual 
Specifications 
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. 
Model 
R50LSi 
R75LSi 
R94LSi 
R98LSi 
R98LSi-
ASME 
Minimum Gas Consumption Btu/h  
15,000  
19,000 
Maximum Gas Consumption Btu/h  
150,000 
180,000 
237,000 
Hot water capacity (Min - Max) * 
0.6 - 5.0 GPM 
(2.3 - 18.9 L/min) 
0.6 - 7.5 GPM 
(2.3 - 28.4 L/min) 
0.6 - 9.4 GPM 
(2.3 - 35.5 L/min) 
0.6 - 9.8 GPM 
(2.3 - 37 L/min) 
Hot water capacity (45°F rise)  
5.0 GPM 
(18.9 L/min) 
6.7 GPM 
(25.4 L/min)  
8.5 GPM 
(32.2 L/min) 
Default Temperature Setting (no controller)  
120º F (49º C) 
Temperature Controller Default Setting 
104º F (40º C) 
Maximum Temp Setting (commercial **) 
160º F (71º C)   
185º F (85º C)   
Maximum Temp Setting (residential)  
see Temperature Ranges for more information 
140º F (60º C) 
Minimum Temperature Setting  
98º F (37º C) 
Weight  
50 lb (23 kg) 
55 lb (25 kg) 
Efficiency Rating  
Noise level  
49 dB  
Electrical 
Consumption  
Normal  
 
79 W 
99 W 
Standby  
2 W 
Anti-frost Protection  
 
100 W 
116 W 
By-Pass Control  
Fixed 
Electronic 
Minimum Gas Supply 
Pressure  
Natural Gas  
5.0 inch W.C. 
Propane  
8.0 inch W.C. 
Maximum Gas Supply 
Pressure  
Natural Gas  
10.5 inch W.C. 
Propane  
13.5 inch W.C. 
Type of Appliance  
Direct Vent, 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 supplied at the installation location. 
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) 
84.0%  
199,000 Natural 
Gas 
190,000 Propane 
7.1 GPM 
(27.0 L/min)  
* Minimum flow may vary slightly depending on the temperature setting and the inlet water temperature. 
** for commercial and hydronic applications requiring higher temperatures