Rinnai Water Heater REU KA2530FFUD US User Guide

RC80HPi (KA2530FFUD)  
Condensing, Tankless, Temperature controlled, continuous flow,  
gas hot water system, Energy Star Qualified  
Type of Appliance  
REU-KA2530FFUD-US  
Rinnai model number  
Operation / Installation  
Minimum/Maximum Gas Rate (Input)  
Electrical  
Forced combustion; indoor only  
9,500 (Natural Gas), 10,300 (Propane) - 157,000 BTU/h  
Appliance:  
Temperature Controller:  
AC 120 Volts - 60 Hz  
DC 12 Volts  
Normal  
Standby  
63 watts  
2 watts  
Electrical Consumption  
Anti-frost protection  
220 watts  
Direct electronic ignition  
Ignition System  
Hot Water Capacity  
Temperature  
0.4 to 6.0 GPM (50° F rise)  
0.4 to 8.0 GPM (35° F rise)  
98° - 120° F (factory default) Maximum temperature is selectable at  
120° F or at 140° F; 98° - 185° F available with the MCC-91  
controller for commercial and hydronic applications  
120° F (factory default)  
Temperature (without remote)  
Approved Gas Types  
Thermal Efficiency  
Natural or Propane (ensure unit matches gas type)  
Natural Gas: 97%  
Natural Gas: 0.96  
Propane: 97%  
Propane: 0.96  
Energy Factor (EF)  
Gas supply: 3/4 inch MNPT  
Service Connections  
Cold water inlet: 3/4 inch MNPT  
Hot water outlet: 3/4 inch MNPT  
Water flow sensor, electronic water control and by-pass control  
15 - 150 PSI (50 PSI or above is recommended for maximum flow)  
Water Flow Control  
Minimum/Maximum Water Supply Pressure  
10.0  
9.0  
8.0  
7.0  
6.0  
5.0  
4.0  
3.0  
2.0  
1.0  
0.0  
0
25  
50  
75  
100  
125  
150  
delta T - Temperature Rise (ºF)  
RC80HPi-SP  
8/2010  
© 2010 Rinnai Corporation  
 

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