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HOME HEATING & WATER HEATING 
POWERED BY TANKLESS TECHNOLOGY

RHEEM RESIDENTIAL TANKLESS

84 TANKLESS SERIES

Continuous hot water for 2-3 bathroom homes*

RTG-84DV indoor direct vent and RTG-84X outdoor 

 natural and LP models – 11,000 - 180,000 BTU max.

8.4 gal./min at 35° F rise max., 6.7 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.

New! 3"/5" Concentric Vent System with Integrated Condensate Collector

Connects to Metal Fab Inc., 3"/5" Concentric Venting without an adapter

New! Next Generation Burner Technology

Industry Best! .26 GPM Minimum Flow Rate, .40 GPM Minimum 

Activation Flow Rate

UMC-117 remote control and 10 ft. of thermostat wire is included

EZ-Link™ cable available for high demand applications to connect two tankless

units to operate as one

New! Manifold up to 6 units with an optional MIC-6 manifold control board

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

High-altitude capability – up to 9,840 ft. elevation above sea level

(no chip required)

Exclusive! Guardian OFW™ overheat film wrap

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 System

Digital display shows temperature setting and maintenance codes

Built-in electric blower

Supplied with a 120 volt power cord

Environmentally friendly Low NOx burner meets SCAQMD rule 1146

 requirements

Freeze protection to -30° F

Product appearance may differ.
* Based on simultaneous showers using 2.5 gallons per minute. Flow rates vary depending 

on temperature of cold water supply.

Tankless water heaters

Continuous hot water

See reverse for specifications.

180,000 BTU

INDOOR DIRECT VENT 

180,000 BTU

OUTDOOR

The 84 Series Tankless models can be

 converted for Commercial Installations

See Commercial Warranty Brochure for details.

NEW!

SPRING 2010

Features of the Hydronic Air Handler

•  Low profile 34-inch design is lighter, easier to handle and leaves 

room for optional accessories

•  Left or right side electric connections

•  Integrated control board features diagnostics, manages all opera-

tional functions and provides hookups for humidifier and electronic 
air cleaner

•  An insulated blower compartment makes it one of the quietest 

hydronic air handlers on the market today

•  Pre-paint galvanized steel cabinet

•  Molded permanent filter(s)

•  Transformer and control fuse protection

•  Solid bottom is standard

•  A variety of cooling coils and plenums designed to use with the 

Hydronic Air Handler are available as optional accessories for air 
conditioning models

Features of the Tankless Water Heater

•  

Industry best!

  Minimum flow rate of .26 GPM, minimum activa-

tion flow rate of .40 GPM

•   3"/5" concentric vent system with integrated condensate  

collector

•   Connects to Metal-Fab, Inc., 3"/5" concentric venting without an 

adapter

•  Next generation burner technology

•   UMC-117 remote control and 10 ft. of thermostat wire is included

•   EZ-Link™ cable available for high demand applications to connect 

two tankless units to operate as one

•   High-altitude capability – up to 9,840 ft. elevation above  

sea level (no chip required)

•   Intelligent electronic controls designed to increase energy  

efficiency and safety

•   Self Diagnostic System

AIR HANDLER MODEL:

RHWB- Series

• 

Nominal Heating Capacities from 

   32,000 to 90,000 BTUH [9.38 to 26.39 kW]

TANKLESS WATER HEATER MODELS:

RTG-64DV indoor direct vent and RTG-64X outdoor

• Natural and LP models – 11,000 - 150,000 BTU max.
• 6.4 gal./min at 35° F rise max., 5.6 gal./min. at 45° F rise    

RTG-84DV indoor direct vent and RTG-84X outdoor

• Natural and LP models – 11,000 - 180,000 BTU max.
• 8.4 gal./min at 35° F rise max., 6.7 gal./min. at 45° F rise

RTG-95DV indoor direct vent and RTG-95X outdoor

• Natural and LP models – 11,000 - 199,900 BTU max.
• 9.5 gal./min at 35° F rise max., 7.4 gal./min. at 45° F rise

92-24161-94-00

INSTALLATION INSTRUCTIONS

HYDRONIC AIR HANDLER

RHWB-

DO NOT DESTROY THIS MANUAL. PLEASE READ CAREFULLY AND KEEP

IN A SAFE PLACE FOR FUTURE REFERENCE BY QUALIFIED SERVICE PERSONNEL.

ISO 9001:2008

92-24161-94-00

INSTALLATION INSTRUCTIONS

HYDRONIC AIR HANDLER

RHWB-

DO NOT DESTROY THIS MANUAL. PLEASE READ CAREFULLY AND KEEP

IN A SAFE PLACE FOR FUTURE REFERENCE BY QUALIFIED SERVICE PERSONNEL.

ISO 9001:2008

INTEGRATED HVAC

& WATER HEATING

Summary of Contents for RHWB series

Page 1: ...r Handler Low profile 34 inch design is lighter easier to handle and leaves room for optional accessories Left or right side electric connections Integrated control board features diagnostics manages...

Page 2: ...ween the tankless water heater and the hydronic coil 3 COOLING COIL In cooling mode the cooling coil operates the same as any other Rheem heating and cooling system STANDARD EQUIPMENT Completely assem...

Page 3: ...major design change in the product line i e capacity Nominal Heating Capacity BTU HR 06W 60 000 08W 80 000 10W 100 000 Revision A Rev 0 Blower Size M 11x7 R 11x10 Variations P PSC Motor 48 15 1700 CF...

Page 4: ...11 32 593 225 8 575 7 8 22 600 2025 32 528 0 0 0 1 25 2 51 10WR 241 2 622 2311 32 593 225 8 575 7 8 22 600 2025 32 528 0 0 0 1 25 2 51 UPFLOW MODELS Designates Metric Conversions FIGURE 4 CLEARANCE TO...

Page 5: ...77 1246 1210 1161 1090 1019 High 1841 1795 1747 1681 1622 1560 1500 1420 1358 1288 Low 1319 1307 1300 1240 1236 1210 1177 1149 1100 1032 M Lo 1484 1480 1471 1463 1418 1385 1359 1314 1246 1166 RHWB 08W...

Page 6: ...assembly High altitude capability up to 9 840 ft elevation above sea level no chip required Exclusive Guardian OFW overheat film wrap All Rheem tankless models are third party efficiency certified by...

Page 7: ...and maintenance codes Built in electric blower Supplied with a 120 volt power cord Environmentally friendly Low NOx burner meets SCAQMD rule 1146 requirements Freeze protection to 30 F Product appeara...

Page 8: ...etting and maintenance codes Built in electric blower Supplied with a 120 volt power cord Environmentally friendly Low NOx burner meets SCAQMD rule 1146 requirements Freeze protection to 30 F Product...

Page 9: ...ay be used or a suitable 1 25 4 mm filter Designates Metric Conversions Rheem Heating Cooling and Water Heating 7 FILTER RACK FILTER SIZES INCHES mm MODEL RXGF CB BOTTOM RHWB 04WMAES 153 4 x 25 400 x...

Page 10: ...heem Heating Cooling and Water Heating TYPICAL PIPING ARRANGEMENT FOR DIRECT SPACE HEATING AND DOMESTIC WATER SUPPLY WITH TANKLESS All piping to be 3 4 inch BV DV Evaporator Coil Air Separator Flow Sw...

Page 11: ...Rheem Heating Cooling and Water Heating 11...

Page 12: ...S A 04 10 DC FORM NO H11 534 Supersedes Form No G11 450 Rev 16 Rheem Heating Cooling and Water Heating 5 Designates Metric Conversions GENERAL TERMS OF LIMITED WARRANTY Rheem will furnish a replacemen...

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