Specification

Type of Appliance
Rinnai model number
Operation / Installation
Minimum/Maximum Gas Rate (Input)
Electrical
Electrical Consumption
Amperage
Ignition System
Hot Water Capacity
Temperature (with remote)
Temperature (without remote)
Approved Gas Types
Uniform Energy Factor (UEF)
Service Connections
Water Flow Control
Minimum/Maximum Water Supply Pressure
High Altitude Capability
Condensing, Tankless, Temperature controlled, continuous flow,
gas hot water system, Energy Star Qualified
REU-KCM2528W-US
Forced combustion; outdoor only; Certified for installation in
Manufactured (Mobile) Homes
10,300 - 160,000 BTU/h
Appliance: AC 120 Volts - 60 Hz
Temperature Controller: DC 12 Volts
Normal: 61 w Standby: 1.3 w Anti-frost protection: 140 w
Max: 2.3A Fuse: 10A
Direct electronic ignition
Minimum flow rate: 0.26 GPM (1 l/min)
Minimum activation flow rate: 0.4 GPM (1.5 l/min)
Maximum flow rate: 7.5 GPM (28.4 l/min)
120° - 140° F (49°- 60°C)
120° F (49°C), 125° F (49°C), 135° F (57°C), or 140° F (60°C)
Natural or Propane (ensure unit matches gas type)
0.90
Gas supply: 3/4 inch (19mm) MNPT
Cold water inlet: 3/4 inch (19mm) MNPT
Hot water outlet: 3/4 inch (19mm) MNPT
Water flow sensor, electronic water control and fixed by-pass
50 - 150 PSI (345-1035 KPa) ( recommended 60 - 80 PSI (414 - 552
KPa) for optimal performance)
Up to 5,400 ft (1646 m) elevation above sea level
FLOW TABLE
RUS75e (KCM2528W)
Water Flow gpm (l/min)
delta T - Temperature Rise ºF (ºC)
© 2017 Rinnai Corporation
RUS75e-SP-2 5/2017
SANITATION
C US
Low Lead Content
NSF/ANSI 372
25 (13.9) 50 (27.8) 75 (41.6) 100 (55.6) 125 (69.4) 150 (83.3)
(37.9)
10.0
(34.1)
(26.5)
(30.3)
(19.0)
(22.7)
(15.1)
0.0
9.0
8.0
(7.6)
2.0
(3.8)
1.0
6.0
7.0
4.0
5.0
(11.4)
3.0
Rinnai is continually updating and improving products; therefore, specifications are subject to change without prior
notice. Local, state, provincial and federal codes must be adhered to prior to installation.