Installation Manual
Rinnai Tankless Rack System (TRS) Installation Manual     19 
Rack Frame - Specifications  
Frame Material 
14 Gauge Hot Rolled Steel  
1.5” Square Tube 
16 Gauge Stainless 
Steel 1.5” Square Tube 
Frame Finish 
Powder Coat  Stainless  
Color 
Gray  Stainless 
Water & Gas Connections      
Hot Water Trunk Line Diameter  1-1/2"  
Cold Water Trunk Line Diameter  1-1/2"  
Hot Water Trunk Line Material  Rigid Copper  
Cold Water Trunk Line Material  Rigid Copper  
Water Trunk Connection Type  1-1/2" PIPE  
Gas Trunk Line Diameter  1-1/4"  
Gas Trunk Connection Type  1-1/4” MNPT  
Gas Trunk Line Material  Sch 40 Steel  
Gas Branch Line Material  PVC Over CSST  
Electric Requirements  
Voltage  AC 120 Volts—60 Hz  
Maximum Current (Amperes)  8  
BTU and Flow Rates for RL94i, RLX94i, RL94e (NG/LP)  
Number of Tankless Water Heaters  2  2  2 
Flow rate @ 70°F rise (gpm)  9.5  9  9.5 
Flow rate @ 100°F rise (gpm)  6.6  6.3  6.6 
Minimum input rate (Btuh)  10,300  10,300  10,300 
Maximum input rate (Btuh)  398,000  384,000  398,000 
TRW02HE / TRW02HEX 
Model  TRW02HEi  TRW02HEXi  TRW02HEe 
Water Heater Model 
RL94i (NG/LP)  RLX94i (NG)  RL94e (NG/LP) 
Crate Dimensions (HxLxD) - in  66 x 67 x 35  
Weight - Fully Assembled - lbs  120  120  120 
Weight - Shipping (total) - lbs  334  334  334 
HE Series 2-Unit Wall-Hanging Frame (Connued) 










