Rheem Water Heater 000 User Guide

RHEEM RESIDENTIAL TANKLESS  
74 TANKLESS SERIES  
Endless hot water for 3 bathroom homes  
RTG-74PV indoor, RTG-74X outdoor and RTG-74DV  
indoor direct vent natural and LP models –  
19,000 - 199,900 BTU max.  
8.5 gal./min at 35° F rise max., 7.4 gal./min. at 45° F rise  
Limited Warranty:  
12-Year on heat exchanger, 5-Year on parts, 1-Year on labor  
See Residential Warranty Information Brochure for complete warranty information.  
UMC-117 remote control is included and can be set from  
the out-of-the-box 120 degrees – up to a 140 degree maximum  
(additional remote control thermostats are available – sold separately)  
EZ-Linkcable available for high demand applications to connect two tankless  
units to operate as one  
Exclusive! Guardian SBTsensing burner technology  
Exclusive! Guardian OFWoverheat film wrap  
Exclusive! Two high-altitude options – up to 6,560 or 9,840 ft. elevations  
above sea level (altitude chip required – sold separately)  
199,900 BTU  
INDOOR DIRECT VENT  
Exclusive! All Rheem models can be linked in up to 20 unit manifold installations  
by using the optional MIC-180 and MICS-180 manifold control assembly  
All Rheem tankless models are third-party efficiency certified by GAMA  
Continuous hot water, energy saving and compact, space saving design  
Intelligent electronic controls designed to increase energy efficiency and safety  
Self diagnostic program  
Digital display shows temperature setting and maintenance codes  
Built-in electric blower  
Indoor units use Category III stainless steel vents and vent horizontally  
or vertically  
199,900 BTU  
OUTDOOR  
Indoor models supplied with a 120 volt power cord  
Environmentally friendly Low NOx burner meets SCAQMD rule 1146  
requirements  
Installation vent kits available – sold separately  
Indoor and outdoor models feature freeze protection to -30°F  
199,900 BTU  
INDOOR  
Tankless water heaters  
Endless hot water  
See reverse for specifications.  
 

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