Brochure

Note:
Explanation of Part Numbers—For specific model numbers, add i or e (for external / internal) water heaters
and N or P (for Natural Gas or LP). Example: TRW02iN, 2-unit wall-mount rack with interior Natural Gas
RU98 tankless units.
WALLHANGING RACK
* When using cascade controller
(REU-MSB)
** For complete information and details
regarding Rinnai’s warranty, visit rinnai.us.
*** Pre-Wired Power Outlet and Junction
Box is integrated on interior units only.
†
GPH represents flow rate delivered
as GPH, not storage GPH.
WALLHANGING
CU Series SE+ Series with ThermaCirc360®
Rack Model Number
TRW02CU TRW03CU TRW02ST TRW03ST
Tankless Model Number
CU199 RUR 199 and RU199
Thermal Eciency (TE)
Ratings not certified by AHRI /
Uniform Energy Factor (UEF) AHRI Certified
97% TE / .93 UEF 0.93 UEF
Number of Tankless Units
2 3 2 3
Max Input (BTU/h)
398,000 597,000 398,000 597,000
Min Input (BTU/h)*
15,200
Shipping Dimensions - w x h x d inches (mm)
70 x 66 x 35 (1,778 x 1,676 x 889)
Product Dimensions - w x h x d inches (mm)
44 x 54.8 x 14.1
(1,117 x 1,392 x 358)
65 x 54.8 x 14.1
(1,651 x 1,392 x 358)
44 x 58 x 14.1
(1,117 x 1,473 x 358)
65 x 58 x 14.1
(1,651 x 1,473 x 358)
Shipping Weight (lbs/kg)
380/172 469/213 399/181 476/216
Fully Assembled Weight (lbs/kg)
170/77 248/112 178/81 258/117
Gas Manifold (dia.) (in./mm)
1-1/4"/32mm 1-1/4"/32mm 1-1/4"/32mm 1-1/4"/32mm
Water Manifold (dia.) (in./mm)
2"/51mm 2"/51mm 2"/51mm 2"/51mm
Flow Rate @ 70° F
∆
T (GPM/GPH)
†
10.8/648 16.2/972 10.8/648 16.2/972
Flow Rate @ 100° F
∆
T (GPM/GPH)
†
7.6/456 11.4/684 7.6/456 11.4/684
Max. Current (Amperes)
8 12 8 12
Electrical Requirements
Ac 120 Volts - 60 Hz Ac 120 Volts - 60 Hz
Frame Material
14 Gauge Hot Rolled Steel-Indoor/
Stainless-Exterior
14 Gauge Hot Rolled Steel-Indoor/
Stailess-Exterior
Water Manifold Material
Rigid Copper Rigid Copper
Water Branch Line (dia.)
3/4" 3/4"
Gas Manifold Material
Sch 40 Steel Sch 40 Steel
Gas Branch Line Material
PVC over CSST PVC over CSST
Warranty - Commercial**
Heat Exchanger: 8 yrs or 12,000 operation hours, whichever occurs first, All other parts: 5 yrs, Reasonable Labor: 1 yr
Warranty - Residential**
Heat Exchanger: 15 yrs or 12,000 operation hours, whichever occurs first, All other parts: 5 yrs, Reasonable Labor: 1 yr
High Alt. Approval
Yes Yes
PVC/CPVC
Yes Yes
Common Vent (Vertical, Horizontal and Side Wall Intake
Vertical Exhaust)
Yes Yes
Room Air Common Vent (Vertical Exhaust)
Yes Yes
Room Air Common Vent (Horizontal Exhaust)
Yes Yes
CU199 Certifications
CSA No
Wi-Fi Capable
Yes Yes
Pre-Wired Power Outlet & Junction Box***
No No
TANKLESS RACK SYSTEM™ CONFIGURATIONS
WALLHANGING
NO DESCRIPTION NO DESCRIPTION
1 Rinnai Tankless Indoor or Outdoor Unit 5 ¾” Dirt Leg
2 Manifold, Hot Water 6 3/4” FNPT Brass Ball Valve – Gas
3 Manifold, Cold Water 7 Pressure Relief Valve (PRV)
4 Manifold, Gas
1
2
5
6 7
3
4
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