Rinnai RU98e (REU-KB3237WD-US) Specification Sheet
Type of Appliance
Rinnai model number
Operation / Installation
Minimum/Maximum Gas Rate (Input)
Electrical
Electrical Consumption
Ignition System
Hot Water Capacity
Temperature
Temperature (without remote)
Approved Gas Types
Energy Factor (EF)
Service Connections
Isolation & Pressure Relief Valves Included
Water Flow Control
Minimum/Maximum Water Supply Pressure
Condensing, Tankless, Temperature controlled, continuous flow,
gas hot water system, Energy Star Qualified
REU-KB3237WD-US
Forced combustion; outdoor only
15,200 - 199,000 BTU/h
Appliance:
AC 120 Volts - 60 Hz
Temperature Controller:
DC 12 Volts
Normal: 63 w Standby: 2 w Anti-frost protection: 168 w
Direct electronic ignition
Minimum flow rate: 0.26 GPM
Minimum activation flow rate: 0.4 GPM
Maximum flow rate: 9.8 GPM
98° - 120° F (factory default) Maximum temperature is selectable at
120° F or at 140° F; 98° - 185° F available with the MCC-91-2
controller for commercial and hydronic applications
120° F (factory default) or 140° F
Natural or Propane (ensure unit matches gas type)
Natural Gas: 0.95
Propane: 0.95
Gas supply: 3/4 inch MNPT
Cold water inlet: 3/4 inch MNPT
Hot water outlet: 3/4 inch MNPT
Heavy duty forged brass Webstone Isolator valves EXP E2, certified
to NSF/ANSI 61-8 for potable water
Water flow sensor, electronic water control and by-pass control
15 - 150 PSI (50 PSI or above is recommended for maximum flow)
© 2012 Rinnai Corporation
RU98e SP 3/2012
FLOW TABLE
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
0
25
50
75
100
125
150
Water Flow (gpm)
delta T - Temperature Rise (ºF)
RU98e (KB3237WD)
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.
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