Specification

Flow curves apply only to incoming water temperatures of 70° F (21° C) or less.
For incoming water temperatures greater than 70° F (21° C), please contact Rinnai.
1
Minimum ow may vary slightly depending on the temperature seng and the inlet water temperature.
Minimum acvaon ow is 0.4 GPM (1.5 L/min).
2
The maximum gas supply pressure must not exceed the value specied by the manufacturer.
* 0 in. from vent components
** Clearance for servicing is 24 in. (610 mm) in front of water heater
*** Add 0.25 in. (6.35 mm) for recess box
in. (mm)
SPECIFICATION CU199i CU160i
Dimensions - w, h, d 18.5 in. x 26.4 in. x 11.4 in. (470 mm x 670 mm x 290 mm)
Minimum Gas
Consumpon Btu/h
15,000
Maximum Gas
Consumpon Btu/h
199,000 160,000
Flow Rate
1
(Min - Max)
0.26 - 9.8 GPM
(1.0 - 37 L/min)
0.26 - 8.0 GPM
(1.0 - 30 L/min)
Max Flow Rate with
Parameter Adjustment
11 GPM
(42 L/min)
9 GPM
(34 L/min)
Weight 64 lb (29 kg) 62 lb (28 kg)
Sound Level 49 dB 48 dB
Normal 84 W 52 W
Standby 1.3 W
Freeze Protecon 148 W
Max Current 4 Amps
Fuse 10 Amps
Temperature
• Minimum: 98° F (37° C) Default
• Maximum: 140° F (60° C) Default
185° F (85° C) With Parameter Adjustment
By-Pass Flow Control Electronic
Gas Supply Pressure
2
• Natural: 3.5 in. w.c. - 10.5 in. w.c.
• Propane: 8.0 in. w.c. - 13.5 in. w.c.
Ignion System Direct Electronic Ignion
Electronic Connecons
• Appliance: AC 120 Volts, 60Hz.
• Temperature Controller: DC 12 Volts (Digital)
Water Supply Pressure
• Minimum: 50 PSI (Recommended 60-80 PSI for max performance)
• Maximum: 150 PSI
Controller Cable Non-Polarized Two Core Cable (Minimum 22 AWG)
Service Connecons
• Gas Supply: 3/4 in. (19 mm) NPT
• Cold Water Inlet: 3/4 in. (19 mm) NPT
• Hot Water Outlet: 3/4 in. (19 mm) NPT
• Condensate Drain: 1/2 in. (13 mm) NPT
Clearances
Electrical
• Top: 2 in. (51 mm)*
• Boom/Ground: 12 in. (305 mm)
• Front: 0 in.**
• Back: 0 in.
• Sides: 2 in. (51 mm)***
• Vent: 0 in.
0 25 50 75 100 125 150
NOTE: Maximum ow rates may vary based
on set temperature, Delta T and altude.
Vent Connecon:
2 in. (51 mm)
nominal PVC/
Polypropylene or
3 in./5 in.
Concentric.
COLD
F 9.54 242
C 3.56 90
HOT
H 14.27 362
B 6.16 156
GAS
E 3.57 91
D 2.78 71
G 10.39 264
PRV
A 7.60 193
Connecon mm in.
SIDE
FRONT
BOTTOM