Rudd ECO-135DVP Parts List

RHEEM TANKLESS PARTS & ACCESSORIES

TANKLESS

Parts & Accessories 2011

Parts and accessories for
residential and commercial
indoor direct vent and outdoor
eco-friendly tankless gas
water heating systems from

• Rheem

• Ruud

• Rheem-Ruud

• Richmond

• EcoSense

• Paloma

Tankless water heaters

Continuous hot water

Rheem Advantages

It is the goal of Rheem to set the standard for the plumbing industry we
serve, and to be the organization against which others are measured.
We are market driven, and will continue to explore products and services
that offer our customers a competitive advantage in the marketplace.

Technology

Rheem has significant research and development capability which allows us
to offer the latest technology and product reliability to our customers.

Patented Products

Rheem has a number of patented products that allow us to offer
the highest quality replacement parts.

Customer Service

Rheem has an industry-leading customer service team that can provide fast
and convenient answers to our customers’ questions.

Brand Equity

The Rheem and Ruud names are synonymous with quality and customer
service and allows Rheem Parts and our partners to capitalize on this brand
recognition with professional plumbers.

Business Partner

Rheem is a proven business partner to our customers.

Sales Professionals

Rheem Water Heating has an exceptional network of sales professionals
to help our customers sell replacement parts.

More Rheem water heaters have been installed in homes than any other
brand. Rheem has been providing reliable water heating to the world since
we invented the water heater over 100 years ago.

Premier Customer Experience – Priority One!

Rheem Water Heating will be the premier customer experience provider of
Rheem tankless water heaters. Rheem’s philosophy of speed, accuracy and
attentiveness will guide this initiative. This will be achieved through customer
education, internal and external training, and after sales service.

Rheem Tankless Parts and Accessories

A comprehensive catalog of approved replacement parts for
Rheem®, Ruud®, Rheem®-Ruud®,Richmond®, EcoSense™ and Paloma® tankless gas water heaters*.

General Terms and Conditions

Freight Allowance

Please see the Tankless Parts and
Accessories Price Sheet for Freight
Allowances.

Taxes

Prices are subject to the addition
of any tax imposed by any present
or future Federal, State, County or
Municipal law on the sale of such
material, unless we have a tax
exemption certicate on le.

Acceptance of Orders

All orders are subject to nal
approval on the terms and conditions
contained in our standard customer
acknowledgment form.

Materials Return

Saleable, current component parts
in a new or unused condition must
have prior authorization by the Parts
Packaging Supervisor or Customer
Service before being returned. Parts
may only be considered for return
within 90 days from the original
invoice date. Invoice numbers must
be provided to Customer Service prior
to obtaining a return authorization
number. All parts returned without
prior authorization will be destroyed
or sent back to the sender at their
expense. All returns will be subject to
our inspection and a 25% restocking
charge. Returned parts that are
damaged or in a condition that
prevents resale will not be credited.
Service/Warranty Parts returned
in accordance with warranty claim
provisions do not require prior
authorization, but will be subject to
our inspection. See Price Sheet for
Additional Conditions.

Accessories ......................................................................... 2

Manifold Systems ................................................................ 3

Vent Kits ............................................................................... 4

3”/5” Concentric Venting ..................................................... 5

RTG-53DV Parts .................................................................. 6

RTG-53X Parts ..................................................................... 8

RTG-53PV, RTG2-42PV Parts ............................................ 10

RTG-66DV Parts .................................................................. 12

RTG-66X Parts ..................................................................... 14

RTG-74DV & GT-199DV Parts ............................................. 16

RTG-74X & GT-199X ........................................................... 18

RTG-74PV & GT-199PV Parts .............................................. 20

RTG-95/84/64DV Parts ...................................................... 22

RTG-95/84/64X Parts ......................................................... 24

RTGH-95/84DV Parts ..................................................... 26

RTGH-95/84X Parts ......................................................... 28

Obsolete RTG-42PV Parts ................................................. 30

Brand/Model Cross Reference Chart ............................... 31

Notes Page .......................................................................... 32

Contact Information ............................................................ BC

* For Ruud, replace RTG with RUTG
* For Richmond, replace RTG with RMTG
* For EcoSense, see cross reference chart, page 31
* For Paloma, replace RTG with PTG

for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters | 1

Tankless accessories

Recess Boxes Pipe Covers Remote Controls

Recess Boxes enhance an outdoor
installation by protecting the tankless
unit from damage and tampering. It
also provides additional protection
from extreme weather. These boxes
come in an grey finish and can be
painted by the customer.

• RTG20226

For the RTGH-95X and RTGH-84X
Rough-in Dimensions:
46" High, 16-1/2" Wide, 9-1/2" Deep

• RTG20170

For the RTG-64X, RTG-84X, RTG-95X
and RTG-66X
Rough in Dimensions:
36-1/2" High, 14-3/4" Wide, 8-1/2"
Deep

Service Valves

Cosmetic Pipe Covers enhance an indoor or
outdoor installation by concealing the pipe
beneath the water heater. It provides protec­tion from tampering and weather conditions.
These covers come in an grey finish and can
be painted by the customer.

• RTG20227 (grey)

For the RTGH-95DV, RTGH-95X, RTGH­84DV, and RTGH-84X

• RTG20169DVG (grey)

For the RTG-64DV, RTG-84DV, RTG-95DV
and RTG-66DV

• RTG20217XG (grey)

For the RTG-95X, RTG-84X, RTG-64X and
RTG-66X

Relief Valve

• RTG20006DW

UMC-117 Main Remote Control

• RTG20006DU

USC1-117 Bath Remote Control

• RTG20006DV

USC2-117 Second Bath Remote
Control

• RTG20009-1

10 ft. Thermostat Wire
1 pair 18AWG

Flush Kit

• RTG20220

Webstone Service Valves,
includes Relief Valve

• RTG20111-1

Watts Service Valves,
includes Relief Valve

• AP12993C

Watts Pressure Relief
Valve,
rated at 150PSI.

• RTG20220AB

Webstone Service Valves,
Clean Brass for California Low
Lead Code, includes Relief Valve

2 | for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters

Connects easily to Tankless
Isolation Valves. Simple to use.

• RTG20124

Includes: 5-Gallon Bucket,
Submersible Pump, and
two Stainless Steel Hoses

Tankless manifold systems

EZ-Link™ Connect two tankless water heaters

EZ-Link™ Cable

• RTG20040

Connect two tankless water heaters together in
a Manifold*** †
This will allow two heaters to communicate
together and operate as a single unit. Perfect
for when one tankless is just not enough.

*** Only two units may be connected together with the

EZ-Link™ cable.

† Only RTG2-42, RTG-53 Models, RTG-66 or RTG-74,

GT-199 models that have a -1 or greater suffix and all
RTG-95, RTG-84, RTG-64, RTGH-84, and RTGH-95
models can be used with the EZ-Link Cable.

EZ-Link™

Cable

Enlarged
EZ-Link™
Cable
Connector

MIC-180 Manifold Controller System Connect Up to 20 tankless water heaters

MIC-180 Manifold Controller

• RTG20126A

Manifold and control up to 6 tankless models.*
Includes installation cabinet for indoor
or outdoor applications

MICS-180

MICS-180 Manifold Controller Expansion Card

• RTG20126B

Add on to the MIC-180 for up to 20 units in total.**
Installations of 7 to 20 require this expansion card.
Mounts inside the MIC-180 cabinet, includes cables
to connect to the MIC-180 board

MIC-180

Replacement Manifold Control Boards

• RTG20126J - MIC-180

• RTG20126W - MIC-185

* Only RTG-74 with a -1 or greater suffix on the model number, and all, RTG2-42, RTG-53, RTG-66, and GT-199 models.

Commercial models will be limited to 180°F in a manifold system. Residential models are limited to 140°F.

** This card provides control cable connection points for units 7 - 20 in multi-unit manifold.

Manifold Control Cables (Type K)

One required for each tankless water heater
installed in a manifold. Connects a single
tankless water heater to the MIC-180.
Note: These cables will not fit the MIC-6.

• RTG20126C

MIC-K-16 16 ft Control Cable

• RTG20126D

MIC-K-32 32 ft Control Cable

• RTG20126E

MIC-K-65 65 ft Control Cable

MIC-6 Manifold Controller System Connect Up to 6 tankless water heaters

MIC-6 Manifold Controller System

For the RTG-95, RTG-84, and RTG-64 Series models only. This kit
will not work on any model manufactured before Jan 2010.

• RTG20213A

Connect up to 6 tankless water heaters together in a Manifold
This kit mounts inside a single tankless unit and connects to up to 5
additional units for a total of 6.
Additional Type Q cables are necessary, listed below.

Manifold Control Cables (Type Q)

One required for each tankless water heater installed in a manifold.
Connects a single tankless water heater to the MIC-6.
Note: These cables will not fit the MIC-180.

• RTG20213B - MIC-Q-1 1 ft Control Cable

• RTG20213C - MIC-Q-6 6 ft Control Cable

• RTG20213D - MIC-Q-18 18 ft Control Cable

for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters | 3

‡

MIC-6 Kit

MIC-6 Installed

Tankless venting

PVC Vent Kits for RTGH-84DV, and RTGH-95DV

Horizontal Vent Termination

• SP20286 for 3-Inch PVC
RXGY-G01

• SP20285 for 2-Inch PVC
RXGY-G02

11-3/4” Wide, 8” Tall, 2-1/2” Deep
Fits PVC, ABS, piping.
Offers for a clean installation of the
intake and exhaust pipes of the
condensing tankless water heater.

Horizontal or Vertical
Concentric Vent Termination

• SP20245 for 3-Inch PVC
RXGY-E03A

11-3/4” Wide, 8” Tall, 2-1/2” Deep
Fits PVC, ABS, piping.
Offers for a clean installation of the
intake and exhaust pipes of the
condensing tankless water heater.

3”/5” Concentric Vent Kits for RTG-64DV, RTG-84DV, and RTG-95DV

Horizontal Vent Termination
Kit by Metal Fab, Inc.

• RTG20210

Contains: 94-Degree Elbow, Long
Termination, (1) 12” Wall Plates,
Screws.
For up to 10-inch walls.
Can be extended.

MF3CGPHK1

Direct Vent Kits for RTG-66DV and RTG-53DV

Horizontal Vent Termination
Kit by Metal Fab, Inc.

• RTG20147-1

Contains: Appliance Adapter, a
94-Degree Elbow, Long Termina­tion, (1) 12” Wall Plates, Screws.
For up to 10-inch walls.
Can be extended.

MF3CGPHK

4 | for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters

Vertical Vent Termination Kit
by Metal Fab, Inc.

• RTG20211

Contains: Storm Collar, 6/12 to 12/12
Pitched Cone Flashing, Vertical Termi­nation with Rain Cap

Does not include vertical vent pipe.

MF3CGVK1

Vertical Vent Termination Kit
by Metal Fab, Inc.

• RTG20184

Contains: Appliance Adapter with Inte­grated Condensate Collector, Conden­sate Drain Tube, Storm Collar, 6/12 to
12/12 Pitched Cone Flashing, Vertical
Termination with Rain Cap

Does not include vertical vent pipe.

MF3CGVK

Tankless venting

3"/5” Concentric Tankless Venting by Metal Fab, Inc.

6” Vent Length

• RTG20151W

5.66” overall length

MF3CG6

90-Degree
Elbow

• RTG20151A-1

8.1” rise - 8.1” run

MF3CG90L

12” Vent Length

• RTG20151R

11.66” overall length

MF3CG12

45-Degree
Elbow

• RTG20151B-1

8.6” rise - 3” run

MF3CG45L

24” Vent Length

• RTG20151C-1

23.66” overall length

MF3CG24

36” Vent Length

• RTG20151D-1

35.66” overall length

MF3CG36

Silicone Condensate
Drain Tube Kit

• RTG20150A

6’ high temperature
silicone tube, 2 clamps,
2 wire ties, instructions

Wall Thimble

• RTG20151X

12” Square
Up to 8” Deep Wall

MF3CGWPK

Adjustable
Vent Length

• RTG20151E-1

7.5” to 22” overall
length

MF3GVL22

Wall Hanger

• RTG20151H

2-point pivot
mounting

MF3CGWH1

Adjustable
Vent Length

• RTG20222

13” to 20” overall
length

MF3CGVAL20

Wall Support

• RTG20151G

3-point mounting

MF3CGWS1

Vertical Cap
Termination

• RTG20151P

12” overall height

MF3CGRVT

Appliance Adapter

• RTG20144-3

Fits RTG-66 or 53DV
5” overall length

MF3CGPA

Storm Collar

• RTG20151M-1

split ring
galvanized

MF3CGSC

Condensate Drain

• RTG20151S

horizontal and vertical

8.6” overall length

MF3CGVDS

6/12 to 12/12
Roof Flashing

• RTG20151L-1

15” square base
galvanized

MF3CGF-12

Horizontal
Termination

2/12 to 5/12
Roof Flashing

• RTG20151K-1

15” square base
galvanized

MF3CGF

Tall Cone
Roof Flashing

• RTG20151J-1

12” square base
galvanized

MF3CGFT

The components listed on this page are
manufactured by Metal Fab, Inc. and
are not compatible with venting compo­nents manufactured by Heat-Fab listed in
previous versions the Tankless Parts and
Accessories Catalog. Make no attempt to
use venting components manufactured by
different companies on a single installation.

Support Plate

• RTG20151T

17” square base
support/fire stop

MF3CGPS

• RTG20128-2

Short for 4” inch wall
horizontal only

MF3CGPHT

A limited number of 3” and 4” single
wall venting as well as various Heat-Fab
components are available, please contact
Customer Service for details.

for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters | 5

Parts for 53DV series

3

5

7

11

9 10

Rheem Part # Description RTG-53DV

8

2

Sea-Level Program Chip

RTG20074FN Program Chip - 0-3280 LP ●

RTG20074FS Program Chip - 0-3280 NAT ●

High Altitude Program Chips - 3281 - 6560 Feet

RTG20074FP Program Chip - 3281-6560 LP ●

RTG20074FT Program Chip - 3281-6560 NAT ●

Chips for installations above 6560 ft are not available for the 53DV Model

4

1

6

6 | for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters

Parts for 53DV series

Ref # Rheem Part # Description RTG-53DV

1 RTG20074DU Control Board ●

RTG20006CS Control Board Fuse (5A) ●
RTG20074EE Power Line Fuse (3A) ●

2 RTG20074AH Gas Valve LP ●

RTG20074GH Gas Valve NAT ●
3 RTG20074AS Burner Assembly LP ●
3 RTG20074AT Burner Assembly NAT ●

RTG20074DR Flame Rod Wire - White ●

RTG20074DS Flame Rod Wire - Red ●
4 RTG20074DM Ignitor Coil ●

RTG20074DN Flame Rod ●

RTG20074DL Ignitor Electrode ●
5 RTG20074DB Fan Assembly ●
6 RTG20074BA Burner Manifold ●
8 RTG20074BT Water Control Valve ●

RTG20006AR Inlet Thermistor - White ●

RTG20006BB Outlet Thermistor - Black ●

RTG20006BC Heat Exchanger Thermistor - Yellow ●

RTG20074CY Ambient Thermistor - Blue ●
9 RTG20006AL Water Inlet Connector 3/4 ●

10 RTG20006AS Inlet Water Filter ●
11 RTG20074CE Hot Outlet Connector ●

RTG20006AW Drain Relief Valve ●

RTG20074AA Mounting Brackets ●

RTG20074EH Gas Shut Off Valve 3/4 ●

RTG20074GJ Gas Inlet Connector 3/4 LP ●

RTG20074GK Gas Inlet Connector 3/4 NAT ●

RTG20074Y Mounting Brackets ●

RTG20006CW Door Screw ●

RTG20006CZ Chassis Screw ●

RTG20074AA Mounting Brackets ●

RTG20074EH Gas Shut Off Valve 3/4 ●

RTG20186 Replacement Screw Kit ●

RTG20206 Replacement O-Ring Kit ●

Accessories

Remote Controls RTG20006DW UMC-117 Main Remote Control

RTG20006DU USC1-117 Bath Remote Control

RTG20006DV USC2-117 Second Bath Remote Control
Pipe Cover RTG20063DV Pipe Cover
Service Valves RTG20111-1 Tankless Service Valve Kit with Relief Valve
Relief Valve AP12993C Pressure Relief Valve

EZ-Link™ Cable RTG20040 6FT EZ-Link™

For parts not listed, please contact Customer Service 1-800-621-5622

for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters | 7

Cable

Parts for 53X series

3

5

7

11

Rheem Part # Description RTG-53X

9 10

8

2

Sea-Level Program Chip

RTG20074FV Program Chip - 0-3280 LP ●

RTG20074FY Program Chip - 0-3280 NAT ●

High Altitude Program Chips - 3281 - 6560 Feet

RTG20074FW Program Chip - 3281-6560 LP ●

RTG20074FZ Program Chip - 3281-6560 NAT ●

Ultra High Altitude Program Chips - 6560 - 9840 Feet

RTG20074FX Program Chip - 6560-9840 LP ●

RTG20074GA Program Chip - 6560-9840 NAT ●

4

6

1

8 | for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters

Parts for 53X series

Ref # Rheem Part # Description RTG-53X

1 RTG20074DV Control Board ●

RTG20006CS Control Board Fuse (5A) ●
RTG20074EE Power Line Fuse (3A) ●

2 RTG20074AF Gas Valve LP ●

RTG20074AG Gas Valve NAT ●
3 RTG20074AU Burner Assembly LP ●
3 RTG20074AV Burner Assembly NAT ●

RTG20074DR Flame Rod Wire - White ●

RTG20074DS Flame Rod Wire - Red ●
4 RTG20074DM Ignitor Coil ●

RTG20074DN Flame Rod ●

RTG20074DL Ignitor Electrode ●
5 RTG20074DC Fan Assembly ●

RTG20074DF Fan Housing ●
6 RTG20074BC Burner Manifold LP ●

RTG20074BD Burner Manifold NAT ●
7 RTG20074GJ Gas Inlet Connector 3/4 LP ●

RTG20074GK Gas Inlet Connector 3/4 NAT ●
8 RTG20074BT Water Control Valve ●

RTG20006AR Inlet Thermistor - White ●

RTG20006BB Outlet Thermistor - Black ●

RTG20006BC Heat Exchanger Thermistor - Yellow ●

RTG20006UW Ambient Thermistor - Blue ●
9 RTG20006AL Water Inlet Connector 3/4 ●

10 RTG20006AS Inlet Water Filter ●
11 RTG20074CE Hot Outlet Connector ●

RTG20006AV Drain Relief Valve ●

RTG20074EH Gas Shut Off Valve 3/4 ●

RTG20074S Mounting Brackets ●

RTG20186 Replacement Screw Kit ●

RTG20206 Replacement O-Ring Kit ●

Accessories

Remote Controls RTG20006DW UMC-117 Main Remote Control

RTG20006DU USC1-117 Bath Remote Control

RTG20006DV USC2-117 Second Bath Remote Control
Pipe Cover RTG20063PV Pipe Cover (Beige)
Recess Box RTG20065 Recess Box (Beige)
Service Valves RTG20111-1 Tankless Service Valve Kit with Relief Valve
Relief Valve AP12993C Pressure Relief Valve

EZ-Link™ Cable RTG20040 6FT EZ-Link™ Cable

For parts not listed, please contact Customer Service 1-800-621-5622

for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters | 9

Parts for 53PV and 2-42PV series

13

3

5

7

11

Rheem Part # Description RTG2-42PV RTG-53PV

9 10

8

2

4

1

Sea-Level Program Chip

RTG20074GB Program Chip - 0-3280 LP ●

RTG20074GE Program Chip - 0-3280 NAT ●

RTG20074FK Program Chip - 0-3280 NAT ●

RTG20074FG Program Chip - 0-3280 LP ●

High Altitude Program Chips - 3281 - 6560 Feet

RTG20074GC Program Chip - 3281-6560 LP ●

RTG20074GF Program Chip - 3281-6560 NAT ●

RTG20074FH Program Chip - 3281-6560 LP ●

RTG20074FL Program Chip - 3281-6560 NAT ●

Ultra High Altitude Program Chips - 6560 - 9840 Feet

6

RTG20074GD Program Chip - 6560-9840 LP ●

RTG20074GG Program Chip - 6560-9840 NAT ●

Chips for installations above 6560 ft are not available for the 53PV Model

10 | for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters

Parts for 53PV and 2-42PV series

Ref # Rheem Part # Description RTG2-42PV RTG-53PV

1 RTG20074DU Control Board ● ●

RTG20006CS Control Board Fuse (5A) ● ●
RTG20074EE Power Line Fuse (3A) ● ●

2 RTG20074AF Gas Valve - LP ●
2 RTG20074AG Gas Valve - NAT ●
2 RTG20074AJ Gas Valve Nat & LP ●
3 RTG20074AP Burner Assembly - LP ● ●
3 RTG20074AR Burner Assembly - NAT ● ●

RTG20074DL Ignitor Electrode ● ●
RTG20074DN Flame Rod ● ●
RTG20074DR Flame Rod Wire - White ● ●

RTG20074DS Flame Rod Wire - Red ● ●
4 RTG20074DM Ignitor Coil ● ●
5 RTG20074DA Fan Assembly ● ●
6 RTG20074BA Burner Manifold LP ● ●
6 RTG20074BB Burner Manifold NAT ● ●
7 RTG20074GJ Gas Inlet Connector 3/4 LP ●
7 RTG20074GK Gas Inlet Connector 3/4 NAT ●

7 RTG20074GL Gas Inlet Connector 1/2 ●
8 RTG20074BT Water Control Valve ● ●

RTG20006AR Inlet Thermistor - White ● ●

RTG20006BB Outlet Thermistor - Black ● ●

RTG20006BC Heat Exchanger Thermistor - Yellow ● ●

RTG20074CU Ambient Thermistor - Blue ● ●
9 RTG20006AL Water Inlet Connector 3/4 ● ●

10 RTG20006AS Inlet Water Filter ● ●
11 RTG20074CE Hot Outlet Connector ● ●

RTG20006AW Drain Relief Valve ● ●

13 RTG20006C Door Filter Screen ● ●

RTG20074Y Mounting Brackets ● ●

RTG20074AA Mounting Brackets ● ●

RTG20074EJ Gas Shut Off Valve 1/2 ●

RTG20074EH Gas Shut Off Valve 3/4 ●

RTG20186 Replacement Screw Kit ● ●

RTG20206 Replacement O-Ring Kit ● ●

Accessories

Remote Controls RTG20006DW UMC-117 Main Remote Control

RTG20006DU USC1-117 Bath Remote Control

RTG20006DV USC2-117 Second Bath Remote Control
Pipe Cover RTG20063PV Pipe Cover (beige)
Service Valves RTG20111-1 Tankless Service Valve Kit with Relief Valve
Relief Valve AP12993C Pressure Relief Valve

EZ-Link™ Cable RTG20040 6FT EZ-Link™ Cable

For parts not listed, please contact Customer Service 1-800-621-5622

for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters | 11

Parts for 66DV series

11

14

9

10

3

4

8

7

5

8a

1

2

6

Rheem Part # Description RT-66DV RTG-66DV-1

Fuel Type Program Chips

RTG20164Y Program Chip - Natural Gas ● ●

RTG20164X Program Chip - LP Gas ● ●

Commercial Conversion Kits

RTG20192A Natural Gas Commercial Conversion Kit ● ●

RTG20192B LP Gas Commercial Conversion Kit ● ●

Only fuel specic chips are required for replacement of control boards. Altitude is controlled through dip switch settings
and does not require a program chip. See Use and Care for details.

Commercial Conversion Kits allow the 66DV models to operate at a higher water temperature for commercial applications.
The kit includes a program chip along with a commercial warranty and instructions. Each heater in a a commercial instal­lation would require a kit.

12 | for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters

Parts for 66DV series

Ref # Rheem Part # Description RTG-66DV RTG-66DV-1

1 RTG20164AL Control Board ● ●

RTG20074EE Power Line Fuse (3A) ● ●
RTG20164P Heat Exchanger Thermistor - Yellow ● ●

RTG20164R Ambient Thermistor - Blue ● ●
RTG20006AR Inlet Thermistor - White ● ●

RTG20006BB Outlet Thermistor - Black ● ●
2 RTG20164B Gas Valve - LP ● ●
2 RTG20164A Gas Valve - NAT ● ●

RTG20164N Gas Control Resistor ● ●
7 RTG20164K Gas Inlet Connector 3/4 ● ●
3 RTG20164C Burner Assembly ● ●
6 RTG20164D Burner Manifold - LP ● ●
6 RTG20164E Burner Manifold - NAT ● ●

RTG20164G Sensor Orce - LP ● ●

RTG20164F Sensor Orce - NAT ● ●
4 RTG20164U Ignitor Coil ● ●

RTG20164H Flame Rod ● ●

RTG20074DL Ignitor Electrode ● ●

RTG20074DR Flame Rod Wire Harness ● ●
5 RTG20164S Blower Motor ● ●

RTG20164T Blower Case ● ●
8 RTG20164L Water Control Valve ● ●

8a RTG20164M Water Bypass Valve ● ●

9 RTG20164J Water Inlet Connector 3/4 ● ●

14 RTG20164Z Terminal Block Wire Assy ● ●

RTG20164AA Remote Control Terminal Block ● ●

10 RTG20164AK Inlet Water Filter ● ●
11 RTG20074CE Hot Outlet Connector ● ●

RTG20006AW

RTG20006CW Door Screw ● ●

RTG20006CZ Chassis Screw ● ●

RTG20074Y Mounting Brackets ● ●

RTG20164AB Screw Pan FT 4x12 ● ●

RTG20186 Replacement Screw Kit ● ●

RTG20206 Replacement O-Ring Kit ● ●

Drain Relief Valve ● ●

Accessories

Remote Controls RTG20006DW UMC-117 Main Remote Control

RTG20006DU USC1-117 Bath Remote Control
RTG20006DV USC2-117 Second Bath Remote Control

Pipe Covers RTG200169DVG Pipe Cover (grey)

RTG200169DV Pipe Cover (beige)
Service Valves RTG20111-1 Tankless Service Valve Kit with Relief Valve
Relief Valve AP12993C Pressure Relief Valve

EZ-Link™ Cable RTG20040 6FT EZ-Link™ Cable

for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters | 13

Parts for 66X series

3

8

7

5

11

Rheem Part # Description RTG-66X RTG-66X-1

14

9

10

8a

1

2

6

4

Fuel Type Program Chips

RTG20164AH Program Chip - Natural Gas ● ●

RTG20164AJ Program Chip - LP Gas ● ●

Commercial Conversion Kits

RTG20192C Natural Gas Commercial Conversion Kit ● ●

RTG20192D LP Gas Commercial Conversion Kit ● ●

Only fuel specic chips are required for replacement of control boards. Altitude is controlled through dip switch settings
and does not require a program chip. See Use and Care for details.

Commercial Conversion Kits allow the 66X models to operate at a higher water temperature for commercial applications.
The kit includes a program chip along with a commercial warranty and instructions. Each heater in a a commercial instal­lation would require a kit.

14 | for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters

Parts for 66X series

Ref# RheemPart# Description RTG-66X RTG-66X-1

1 RTG20164AS Control Board ● ●
RTG20074EE Power Line Fuse(3A) ● ●
RTG20164P Heat Exchanger Thermistor - Yellow ● ●

RTG20074CU Ambient Thermistor - Blue ● ●

RTG20006AR Inlet Thermistor - White ● ●
RTG20006BB Outlet Thermistor - Black ● ●

2 RTG20164B Gas Valve - NAT and LP ● ●

RTG20164N Gas Control Resistor ● ●
7 RTG20164K Gas Inlet Connector 3/4 ● ●
3 RTG20164AC Burner Assembly ● ●
6 RTG20164AE Burner Manifold-LP ● ●
6 RTG20164AD Burner Manifold-NAT ● ●
4 RTG20164U Ignitor Coil ● ●

RTG20164H Flame Rod ● ●

RTG20074DL Ignitor Electrode ● ●
5 RTG20006CC Blower Motor ● ●

RTG20164T Blower Case ● ●
8 RTG20164L Water Control Valve ● ●

8a RTG20164M Water Bypass Valve ● ●

9 RTG20164J Water Inlet Connector 3/4 ● ●

14 RTG20164AA Remote Control Terminal Block ● ●

RTG20164Z Terminal Block Wire Assy ● ●

RTG20164AB Screw Pan FT4x12 ● ●

10 RTG20164AK Inlet Water Filter ● ●
11 RTG20074CE Hot Outlet Connector ● ●

RTG20006AV Drain Relief Valve ● ●
RTG20186 Replacement Screw Kit ● ●
RTG20206

Replacement O-Ring Kit ● ●

Accessories

Remote Controls RTG20006DW UMC-117 Main Remote Control

RTG20006DU USC1-117 Bath Remote Control

RTG20006DV USC2-117 Second Bath Remote Control
Pipe Covers RTG200169XG Pipe Cover (grey)
Recess Box RTG20170 Recess Box (beige)
Service Valves RTG20111-1 Tankless Service Valve Kit with Relief Valve
Relief Valve AP12993C Pressure Relief Valve

EZ-Link™ Cable RTG20040 6FT EZ-Link™ Cable

for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters | 15

Parts for 74DV and GT-199DV series

3

4

5

1

7

†

8

6

2

GT-199DV GT-199DV-1 GT-199DV-2

Fuel
Type

RTG-74DV

11 9 10

RTG-74DV-1

RTGL74DV-1

RTG-74DV-2
RTGL74DV

Sea-Level Program Chip

Natural RTG20006MY RTG20006PU RTG20006SM RTG20006PM RTG20006RA RTG20006SU
LP RTG20006MV RTG20006PX RTG20006SR RTG20006PR RTG20006RD RTG20006SX

High Altitude Program Chips - 3281 - 6560 Feet

Natural RTG20006MZ RTG20006PV RTG20006SN RTG20006PN RTG20006RB RTG20006SV
LP RTG20006MW RTG20006PY RTG20006SS RTG20006PS RTG20006RE RTG20006SY

Ultra High Altitude Program Chips - 6560 - 9840 Feet

Natural RTG20006NA RTG20006PW RTG20006SP RTG20006PT RTG20006RF RTG20006SZ
LP RTG20006MX RTG20006PZ RTG20006ST RTG20006PP RTG20006RC RTG20006SW

Accessories

Remote Controls RTG20006DW UMC-117 Main Remote Control

RTG20006DU USC1-117 Bath Remote Control
RTG20006DV USC2-117 Second Bath Remote Control

Pipe Covers RTG20037G Pipe Cover (grey)

RTG20037 Pipe Cover (beige)
Service Valves RTG20111-1 – Tankless Service Valve Kit with Relief Valve
Relief Valve AP12993C Pressure Relief Valve
EZ-Link RTG20040 6FT EZ-Link cable

16 | for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters

Parts for 74DV and GT-199DV series

Ref # Rheem Part # Description

†

RTG-74DV

RTG20006JC Control Board ● ●
1 RTG20006PG Control Board ● ● ● ●

RTG20006CS Control Board Fuse (5A) ● ● ● ● ● ●

RTG20074EE Power Line Fuse (3A) ● ● ● ● ● ●
2 RTG20006PA Gas Valve ● ● ● ● ● ●
3 RTG20006UH Burner Assembly - NAT / LP ●** ● ●** ●
3 RTG20006VL Burner Assembly - NAT ● ●* ● ●*
3 RTG20006VM Burner Assembly -LP ● ●* ● ●*

RTG20006N Burner Manifold - R LP ● ● ● ●

RTG20006P Burner Manifold - R NAT ● ● ● ●

RTG20006T Burner Manifold - L LP ● ● ● ●

RTG20006U Burner Manifold - L NAT ● ● ● ●

RTG20006UL Burner Manifold - R NAT ● ●

RTG20006UM Burner Manifold - R LP ● ●

RTG20006UR Burner Manifold - L NAT ● ●

RTG20006US Burner Manifold - L LP ● ●
4 RTG20006AA Ignitor Coil ● ● ● ●
4 RTG20006UT Ignitor Coil ● ●

RTG20006AC Flame Rod ● ● ● ●

RTG20006AD Ignitor Electrode ●

RTG20006UU Flame Rod ● ●
5 RTG20006CC Fan Assembly ● ● ● ● ● ●

RTG20006AR Inlet Thermistor - White ● ● ● ● ● ●

RTG20006BB Outlet Thermistor - Black ● ● ● ● ● ●

RTG20006BC Heat Exchanger Thermistor - Yellow ● ● ● ● ● ●

RTG20006BV Ambient Thermistor - Blue ● ● ● ● ● ●

RTG20006CB Transformer (120v to 100v) ● ● ● ●
7 RTG20006AN Gas Inlet Connector 3/4 ● ● ● ● ● ●
8 RTG20006AU Water Control Valve ●
8 RTG20006JA Water Control Valve ● ● ● ● ●
9 RTG20006AL Water Inlet Connector 3/4 ● ● ● ● ● ●

10 RTG20006AS Inlet Water Filter ● ● ● ● ● ●
11 RTG20006AF Hot Outlet Connector ● ● ● ● ● ●

RTG20006AW Drain Relief Valve ● ● ● ● ● ●

RTG20006VD Mounting Brackets ● ● ● ● ● ●

RTG20186 Replacement Screw Kit ● ● ● ● ● ●

RTG20206 Replacement O-Ring Kit ● ● ● ●

RTG-74DV-1

● ● ● ● ●

RTGL74DV-1

RTG-74DV-2

RTGL74DV

GT-199DV

GT-199DV-1

● ●

GT-199DV-2

* If Serial Number is 0906 or earlier

** If Serial Number is 1006 or newer

† The RTGL and ECO models that do ot have a sufx, such as a -1 or -2, are equivalent to the RTG -2 Series and uti-

lize the same parts. RTGL and ECO models with a sufx, such as -1, are equivalent to the models with a like sufx.

for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters | 17

Parts for 74X and GT-199X series

3

4

5

1

7

RTG-74X-2

RTGL74X

†

8

6

2

GT-199X GT-199X-1 GT-199X-2

Fuel

Type

RTG-74X

11 9 10

RTG-74X-1

RTGL74X-1

Sea-Level Program Chip

Natural RTG20006EN RTG20006RV RTG20006TN RTG20006JL RTG20006SB RTG20006TV
LP RTG20006EM RTG20006RY RTG20006TS RTG20006JK RTG20006SE RTG20006TY

High Altitude Program Chips - 3281 - 6560 Feet

Natural RTG20006EK RTG20006RW RTG20006TP RTG20006JN RTG20006SC RTG20006TW
LP RTG20006EH RTG20006RZ RTG20006TT RTG20006JM RTG20006SF RTG20006TZ

Ultra High Altitude Program Chips - 6560 - 9840 Feet

Natural RTG20006EL RTG20006RX RTG20006TR RTG20006JR RTG20006SD RTG20006TX
LP RTG20006EJ RTG20006SA RTG20006TU RTG20006JP RTG20006SG RTG20006UA

Accessories

Remote Controls RTG20006DW UMC-117 Main Remote Control

RTG20006DU USC1-117 Bath Remote Control
RTG20006DV USC2-117 Second Bath Remote Control

Pipe Covers RTG20037G Pipe Cover (grey)

RTG20037 Pipe Cover (beige)
Recess Box RTG20038 Recess Box (beige)
Service Valves RTG20220Tankless Service Valve Kit with Relief Valve
Relief Valve AP12993C Pressure Relief Valve

EZ-Link™ Cable RTG20040 6FT EZ-Link™ Cable

18 | for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters

Parts for 74X and GT-199X series

†

Ref # Rheem Part # Description

RTG-74X

1 RTG20006JB Control Board ● ●
1 RTG20006PF Control Board ● ● ● ●

RTG20006CS Control Board Fuse (5A) ● ● ● ● ● ●

RTG20074EE Power Line Fuse (3A) ● ● ● ● ● ●
2 RTG20006PA Gas Valve ● ● ● ● ● ●
3 RTG20006UE Burner Assembly - NAT/LP ●** ● ●** ●
3 RTG20006VK Burner Assembly -NAT/LP ● ●* ● ●*

RTG20006L Burner Manifold - R NAT ● ● ● ●

RTG20006M Burner Manifold - R LP ● ● ● ●

RTG20006R Burner Manifold - L NAT ● ● ● ●

RTG20006S Burner Manifold - L LP ● ● ● ●

RTG20006UJ Burner Manifold - R NAT ● ●

RTG20006UK Burner Manifold - R LP ● ●

RTG20006UN Burner Manifold - L NAT ● ●

RTG20006UP Burner Manifold - L LP ● ●
4 RTG20006AA Ignitor Coil ● ● ● ●

RTG20006AC Flame Rod ● ● ● ●

RTG20006AD Ignitor Electrode ● ● ● ● ● ●
4 RTG20006UT Ignitor Coil ● ●

RTG20006UU Flame Rod
5 RTG20006CC Fan Assembly ● ● ● ● ● ●

RTG20006AR Inlet Thermistor - White ● ● ● ● ● ●

RTG20006BB Outlet Thermistor - Black ● ● ● ● ● ●

RTG20006BC Heat Exchanger Thermistor - Yellow ● ● ● ● ● ●

RTG20006BV Ambient Thermistor - Blue ● ● ● ●

RTG20006CB Transformer (120v to 100v) ● ● ● ●

RTG20006UV Ambient Thermistor - Blue ● ●
7 RTG20006AN Gas Inlet Connector 3/4 ● ● ● ● ● ●
8 RTG20006AU Water Control Valve ●
8 RTG20006JA Water Control Valve ● ● ● ● ●
9 RTG20006AL Water Inlet Connector 3/4 ● ● ● ● ● ●

10 RTG20006AS Inlet Water Filter ● ● ● ● ● ●
11 RTG20006AF Hot Outlet Connector ● ● ● ● ● ●

RTG20006AV Drain Relief Valve ● ● ● ● ● ●

RTG20006CW Door Screw ● ● ●

RTG20006CZ Chassis Screw ● ● ●

RTG20006VD Mounting Brackets ● ● ● ● ● ●

RTG20186 Replacement Screw Kit ● ● ● ● ● ●

RTG20206

Replacement O-Ring Kit ● ● ● ● ● ●

RTG-74X-1

RTGL74X-1

RTGL74X

RTG-74X-2

● ●

GT-199X

GT-199X-1

GT-199X-2

* If Serial Number is 0906 or earlier

** If Serial Number is 1006 or newer

† The RTGL and ECO models that do not have a sufx, such as a -1 or -2, are equivalent to the RTG -2 Series and uti-

lize the same parts. RTGL and ECO models with a sufx, such as -1, are equivalent to the models with a like sufx.

for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters | 19

Parts for 74PV and GT-199PV series

13

3

4

12

1

6

Fuel
Type

RTG-74PV

11 9 10

RTG-74PV-1

RTGL74PV-1

7

RTG-74PV-2
RTGL74PV

5

8

2

†

GT-199PV GT-199PV-1 GT-199PV-2

Sea-Level Program Chip

Natural RTG20006DG RTG20006RG RTG20006TA RTG20006JE RTG20006RN RTG20006TG
LP RTG20006DF-1 RTG20006RK RTG20006TD RTG20006JD RTG20006RS RTG20006TK

High Altitude Program Chips - 3281 - 6560 Feet

Natural RTG20006DM-1 RTG20006RH RTG20006TB RTG20006JG RTG20006RP RTG20006TH
LP RTG20006DK-1 RTG20006RL RTG20006TE RTG20006JF RTG20006RT RTG20006TL

Ultra High Altitude Program Chips - 6560 - 9840 Feet

Natural RTG20006DN-1 RTG20006RJ RTG20006TC RTG20006JJ RTG20006RR RTG20006TJ
LP RTG20006DL-1 RTG20006RM RTG20006TF RTG20006JH RTG20006RU RTG20006TM

Accessories

Remote Controls RTG20006DW UMC-117 Main Remote Control

RTG20006DU USC1-117 Bath Remote Control
RTG20006DV USC2-117 Second Bath Remote Control

Pipe Covers RTG20037G Pipe Cover (grey)

RTG20037 Pipe Cover (beige)
Service Valves RTG20220 Tankless Service Valve Kit with Relief Valve
Relief Valve AP12993C Pressure Relief Valve

EZ-Link™ Cable RTG20040 6FT EZ-Link™ Cable

20 | for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters

Parts for 74PV and GT-199PV series

Ref # Rheem Part # Description

†

RTG-74PV

1 RTG20006JC Control Board ● ●
1 RTG20006PG Control Board ● ● ● ●

RTG20006CS Control Board Fuse (5A) ● ● ● ● ● ●

RTG20074EE Power Line Fuse (3A) ● ● ● ● ● ●
2 RTG20006PA Gas Valve ● ● ● ● ● ●
3 RTG20006UF Burner Assembly - NAT/LP ●** ●
3 RTG20006UG Burner Assembly -LP ● (LP) ● (LP)
3 RTG20006VJ Burner Assembly -NAT/LP ● ●* ● ●*

RTG20006N Burner Manifold - R LP ● ● ● ●

RTG20006P Burner Manifold - R NAT ● ● ● ●

RTG20006T Burner Manifold - L LP ● ● ● ●

RTG20006U Burner Manifold - L NAT ● ● ● ●

RTG20006UL Burner Manifold - R NAT ● ●

RTG20006UM Burner Manifold - R LP ● ●

RTG20006UR Burner Manifold - L NAT ● ●

RTG20006US Burner Manifold - L LP ● ●
4 RTG20006AA Ignitor Coil ● ● ● ●
4 RTG20006UT Ignitor Coil ● ●

RTG20006AC Flame Rod ● ● ● ●

RTG20006AD

RTG20006UU Flame Rod ● ●
5 RTG20006CC Fan Assembly ● ● ● ● ● ●

RTG20006AR Inlet Thermistor - White ● ● ● ● ● ●

RTG20006BB Outlet Thermistor - Black ● ● ● ● ● ●

RTG20006BC Heat Exchanger Thermistor - Yellow ● ● ● ● ● ●

RTG20006BV Ambient Thermistor - Blue ● ● ● ●

RTG20006CB Transformer (120v to 100v) ● ● ● ●

RTG20006UW Ambient Thermistor - Blue ● ●
7 RTG20006AN Gas Inlet Connector 3/4 ● ● ● ● ● ●
8 RTG20006AU Water Control Valve ●
8 RTG20006JA Water Control Valve ● ● ● ● ●
9 RTG20006AL Water Inlet Connector 3/4 ● ● ● ● ● ●

10 RTG20006AS Inlet Water Filter ● ● ● ● ● ●
11 RTG20006AF Hot Outlet Connector ● ● ● ● ● ●

RTG20006AW Drain Relief Valve ● ● ● ● ● ●

12 RTG20006CK Door Switch ● ● ● ● ● ●
13 RTG20006C Door Filter Screen ● ● ● ● ● ●

RTG20006VD Mounting Brackets ● ● ● ● ● ●

RTG20186 Replacement Screw Kit ● ● ● ● ● ●

RTG20206 Replacement O-Ring Kit ● ● ● ● ● ●

* If Serial Number is 0906 or earlier

** If Serial Number is 1006 or newer

† The RTGL and ECO models that do not have a sufx, such as a -1 or -2, are equivalent to the RTG -2 Series and

utilize the same parts. RTGL and ECO models with a sufx, such as -1, are equivalent to the models with a like sufx.

Ignitor Electrode ● ● ● ● ● ●

RTG-74PV-1

RTG-74PV-2

RTGL74PV-1

RTGL74PV

(NAT) ●** ● (NAT)

GT-199PV

GT-199PV-1

GT-199PV-2

for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters | 21

Parts for RTG-64DV, RTG-84DV, RTG-95DV series

15

13

3

8

7

5

11

Rheem Part # Description RTG-64DV RTG-84DV RTG-95DV

14

9

10

8a

1

2

6

Program Chip

RTG20212S Natural Gas Program Chip ●
RTG20212T LP Gas Program Chip ●

RTG20212AL Natural Gas Program Chip ●
RTG20212AM LP Gas Program Chip ●
RTG20212AV Natural Gas Program Chip ●
RTG20212AW LP Gas Program Chip ●

Commercial Conversion Kits

RTG20214A Natural Gas Commercial Conversion Kit ●

RTG20214B LP Gas Commercial Conversion Kit ●

RTG20216A Natural Gas Commercial Conversion Kit ●

RTG20216B LP Gas Commercial Conversion Kit ●

4

22 | for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters

Parts for RTG-64DV, RTG-84DV, RTG-95DV series

Ref # Rheem Part # Description RTG-64DV RTG-84DV RTG-95DV

1 RTG20212R Control Board ● ● ●

RTG20164R Thermistor (Blue) ● ● ●

RTG20164P Thermistor Assy ● ● ●

RTG20006AR Inlet Thermistor - White ● ● ●

RTG20006BB Outlet Thermistor - Black ● ● ●
2 RTG20212C Gas Valve Assy ● ● ●
3 RTG20212D Burner Assembly ● ● ●
6 RTG20212E Burner Manifold - NAT ● ● ●
6 RTG20212F Burner Manifold - LP ● ● ●

RTG20212G Flame Rod "FL" (Right) ● ● ●

RTG20212J Gas Control Resister ● ● ●

RTG20212H Flame Rod "Sensor" (Left) ● ● ●

RTG20212N Flame Rod Wire Harness ● ● ●

RTG20212P Flame Rod Connector ● ● ●
4 RTG20164U Ignitor Coil ● ● ●

RTG20212M Igniter Rod (Right) ● ● ●
5 RTG20212K Blower Motor ● ● ●

RTG20212L Blower Case ● ● ●
7 RTG20164K Gas Inlet Connector 3/4 ● ● ●
8 RTG20164L Water Control Valve ● ● ●

8a RTG20164M Water Bypass Valve ● ● ●

9 RTG20164J Water Inlet Connector 3/4 ● ● ●

11 RTG20074CE Hot Water Outlet Connector 3/4 ● ● ●
14 RTG20212U Remote Control Terminal ● ● ●

RTG20164AA Remote Control Terminal Block ● ● ●

RTG20006AW Drain Relief Valve ● ● ●

RTG20212A Top Mounting Bracket ● ● ●

RTG20212B Bottom Moutning Bracker ● ● ●

RTG20164AB Screw Pan FT 4X12 ● ● ●

10 RTG20164AK Inlet Water Filter ● ● ●
13 RTG20212BA Front Cover - No Labels or Branding ● ● ●
15 RTG20212BB

Concentric Vent Connector Assembly

● ● ●

Accessories

Remote Controls RTG20006DW UMC-117 Main Remote Control

RTG20006DU USC1-117 Bath Remote Control

RTG20006DV USC2-117 Second Bath Remote Control
Pipe Covers RTG20169DVG Pipe Cover (grey)
Recess Box RTG20170 Recess Box (beige)
Service Valves RTG20220 Tankless Service Valve Kit with Relief Valve
Relief Valve AP12993C Pressure Relief Valve

EZ-Link™ Cable RTG20040 6FT EZ-Link™ Cable

See Page 3 for Manifold Controller Information
See Page 4 for Venting

for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters | 23

Parts for RTG-64X, RTG-84X, RTG-95X series

13

3

4

8

7

5

11

Rheem Part # Description RTG-64X RTG-84X RTG-95X

14

9

10

8a

1

2

Program Chip

RTG20212AE Natural Gas Program Chip ●
RTG20212AH LP Gas Program Chip ●

RTG20212AN Natural Gas Program Chip ●
RTG20212AP LP Gas Program Chip ●
RTG20212AX Natural Gas Program Chip ●
RTG20212AY LP Gas Program Chip ●

Commercial Conversion Kits

RTG20214C Natural Gas Commercial Conversion Kit ●

RTG20214D LP Gas Commercial Conversion Kit ●

RTG20216C Natural Gas Commercial Conversion Kit ●

RTG20216D LP Gas Commercial Conversion Kit ●

6

24 | for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters

Parts for RTG-64X, RTG-84X, RTG-95X series

Ref # Rheem Part # Description RTG-64X RTG-84X RTG-95X

1 RTG20212AD Control Board ● ● ●

RTG20164P Thermistor Assy ● ● ●
RTG20006BB Outlet Thermistor - Black ● ● ●
RTG20006AR Inlet Thermistor - White ● ● ●
RTG20006UW Ambient Thermistor - Blue ● ● ●

2 RTG20212V Gas Valve Assy ● ● ●

RTG20212J Gas Control Resister ● ● ●

3 RTG20212W Burner Assembly ● ● ●

RTG20212G Flame Rod "FL" (Right) ● ● ●
RTG20212M Igniter Rod (Right) ● ● ●

RTG20212P Flame Rod Connector ● ● ●
4 RTG20164U Ignitor Coil ● ● ●
5 RTG20212AB Blower Motor ● ● ●

RTG20212AC Blower Case ● ● ●
6 RTG20212X Burner Manifold - NAT ● ● ●

RTG20212F Burner Manifold - LP ● ● ●
7 RTG20164K Gas Inlet Connector 3/4 ● ● ●
8 RTG20164L Water Control Valve ● ● ●

8a RTG20164M Water Bypass Valve ● ● ●

9 RTG20164J Water Inlet Connector 3/4 ● ● ●

RTG20006AV Drain Relief Valve ● ● ●

11 RTG20074CE Hot Water Outlet Connector 3/4 ● ● ●

RTG20212U Remote Control Terminal ● ● ●

RTG20164AA

RTG20164AB Screw Pan FT 4X12 ● ● ●

10 RTG20164AK Inlet Water Filter ● ● ●
13 RTG20212AZ Front Cover - No Labels or Branding ● ● ●

Remote Control Terminal Block ● ● ●

Accessories

Remote Controls RTG20006DW UMC-117 Main Remote Control

RTG20006DU USC1-117 Bath Remote Control

RTG20006DV USC2-117 Second Bath Remote Control
Pipe Covers RTG20217XG Pipe Cover (grey)
Recess Box RTG20170 Recess Box (beige)
Service Valves RTG20111-1 Tankless Service Valve Kit with Relief Valve
Relief Valve AP12993C Pressure Relief Valve

EZ-Link™ Cable RTG20040 6FT EZ-Link™ Cable

See Page 3 for Manifold Controller Information

for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters | 25

Parts for RTGH-84DV, RTGH-95DV series

Rheem Part # Description RTGH-84DV RTGH-95DV

Program Chip

RTG20228T Natural Gas Program Chip ●
RTG20228U LP Gas Program Chip ●

RTG20228N Natural Gas Program Chip ●
RTG20228P LP Gas Program Chip ●

Commercial Conversion Kits

RTG20225A Natural Gas Commercial Conversion Kit ●

RTG20225B LP Gas Commercial Conversion Kit ●

RTG20224A Natural Gas Commercial Conversion Kit ●

RTG20224B LP Gas Commercial Conversion Kit ●

Accessories

Venting SP20286 (RXGY-G01) 3-Inch Horizontal Termination Kit

SP20285 (RXGY-G02) 2-Inch Horizontal Termination Kit

SP20245 (RXGY-E02) 3-Inch Concentric Horiz/Vertontal Termination Kit
Remote Controls RTG20006DW UMC-117 Main Remote Control

RTG20006DU USC1-117 Bath Remote Control

RTG20006DV USC2-117 Second Bath Remote Control

26 | for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters

Parts for RTGH-84DV, RTGH-95DV series

Ref # Rheem Part # Description RTGH-84DV RTGH-95DV

1 RTG20223P Control Board ● ●

RTG20223D Inlet Thermistor - White ● ●

RTG20223G Heat Exchanger Thermistor - Green ● ●

RTG20223H Outlet Thermistor - Red ● ●

RTG20223J Ambient Thermistor - Blue ● ●

RTG20223L Thermostat Assembly ● ●

RTG20223W Thermistor Wiring Harness ● ●

2 RTG20212V Gas Control Valve ● ●

RTG20223V Gas Control Wiring Harness ● ●

3 RTG20212D Burner Assembly ● ●

RTG20164U Igniter Coil ● ●

RTG20212M Igniter Rod (IG) ● ●

4 RTG20212K Blower Motor ● ●

RTG20223K Blower Case ● ●

5 RTG20212F Burner Manifold LP ● ●

5 RTG20212X Burner Manifold NAT ● ●

RTG20212G Flame Rod FL-1 ● ●

RTG20212P Flame Rod Wire ● ●

RTG20223C Flame Rod FL-2 ● ●

RTG20223M Flame Rod Wire No.S ● ●

6 RTG20164K Gas Inlet Connector 3/4 ● ●

7 RTG20223E Water Control Body ● ●

RTG20164M Bypass Assembly ● ●

8 RTG20164J Water Inlet Connector 3/4 ● ●

10 RTG20074CE Hot Water Outlet Connector 3/4 ● ●

11 RTG20164AA Remote Control Terminal Block ● ●

RTG20212U Remote Control Terminal ● ●

12 RTG20223F Neutralization Replacement Kit ● ●

13 RTG20223B Front Cover - No Labels or Branding ●
14 RTG20223Y Exhaust Vent Outlet Connector - PVC ● ●

15 RTG20223X Air Intake Inlet Connector - PVC ● ●

●

Accessories

Pipe Covers RTG20227 Pipe Cover (grey)
Service Valves RTG20220 Tankless Service Valve Kit with Relief Valve

RTG20220AB Tankless Service Valve Kit with Relief Valve - California Code

Relief Valve AP12993C Pressure Relief Valve

EZ-Link™ Cable RTG20040 6FT EZ-Link™ Cable

See Page 3 for Manifold Controller Information
See Page 4 for Vent Termination Kits

for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters | 27

Parts for RTGH-84X, RTGH-95X series

Rheem Part # Description RTGH-84X RTGH-95X

Program Chip

RTG20228V Natural Gas Program Chip ●
RTG20228W LP Gas Program Chip ●
RTG20228R Natural Gas Program Chip ●
RTG20228S LP Gas Program Chip ●

Commercial Conversion Kits

RTG20225C Natural Gas Commercial Conversion Kit ●

RTG20225D LP Gas Commercial Conversion Kit ●

RTG20224C Natural Gas Commercial Conversion Kit ●

RTG20224D LP Gas Commercial Conversion Kit ●

Accessories

Remote Controls RTG20006DW UMC-117 Main Remote Control

RTG20006DU USC1-117 Bath Remote Control

RTG20006DV USC2-117 Second Bath Remote Control
Pipe Covers RTG20227 Pipe Cover (grey)
Recess Box RTG20226 Recess Box (grey)
Service Valves RTG20220 Tankless Service Valve Kit with Relief Valve

RTG20220AB Tankless Service Valve Kit with Relief Valve - California Code
Relief Valve AP12993C Pressure Relief Valve

EZ-Link™ Cable RTG20040 6FT EZ-Link™ Cable

28 | for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters

Parts for RTGH-84X, RTGH-95X series

Ref # Rheem Part # Description RTGH-84X RTGH-95X

1 RTG20223N Control Board ● ●

RTG20223D Inlet Thermistor - White ● ●
RTG20223G Heat Exchanger Thermistor - Green ● ●
RTG20223H Outlet Thermistor - Red ● ●
RTG20223J Ambient Thermistor - Blue ● ●
RTG20223W Wiring Assy ● ●

2 RTG20212V Gas Control Valve ● ●

RTG20223V Gas Control Wiring Harness ● ●

3 RTG20212W Burner Assembly ● ●

RTG20164U Igniter Coil ● ●
RTG20212M Igniter Rod (IG) ● ●

4 RTG20212AB Blower Motor ● ●

RTG20212AC Blower Case ● ●
5 RTG20212F Burner Manifold LP ● ●
5 RTG20212X Burner Manifold NAT ● ●

RTG20212G Flame Rod FL-1 ● ●

RTG20212P Flame Rod Wire ● ●
6 RTG20164K Gas Inlet Connector 3/4 ● ●
7 RTG20223E Water Control Body ● ●

RTG20164M Bypass Assembly ● ●
8 RTG20164J Water Inlet Connector 3/4 ● ●

10 RTG20074CE Hot Water Outlet Connector 3/4 ● ●
11 RTG20164AA Remote Control Terminal ● ●

RTG20212U Remote Control Terminal ● ●

12 RTG20223F Neutralization Kit Set ● ●
13 RTG20223A Front Cover - No Labels or Branding ● ●

See Page 3 for Manifold Controller Information

Condensing Tankless Model Cross Reference

Rheem RUUD Richmond EcoSense Paloma

RTGH-95DVN RUTGH-95DVN RMTGH95DVN ECOH200DVN PHH-32RDVN
RTGH-95DVP RUTGH-95DVP RMTGH95DVP ECOH200DVP PHH-32RDVP
RTGH-95XN RUTGH-95XN RMTGH95XN ECOH200XN PHH-32ROFN
RTGH-95XP RUTGH-95XP RMTGH95XP ECOH200XP PHH-32ROFP

RTGH-84DVN RUTGH-84DVN RMTGH84DVN ECOH160DVN PHH-25RDVN
RTGH-84DVP RUTGH-84DVP RMTGH84DVP ECOH160DVP PHH-25RDVP
RTGH-84XN RUTGH-84XN RMTGH84XN ECOH160XN PHH-25ROFN
RTGH-84XP RUTGH-84XP RMTGH84XP ECOH160XP PHH-25ROFP

Mid-Efficiency Tankless Model Cross Reference located on page 31.

for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters | 29

Parts for 42PV series (obsolete)

Parts for RTG-42PV First Generation series

Rheem Part # Description RTG-42PV

RTG20000BC Control Board ●
RTG20000BB Transformer (120v to 100v) ●

RTG20000BJ Transformer (Power Supply) ●
RTG20074EE Power Line Fuse (3A) ●
RTG20000Z Fuse Board Assembly ●
RTG20000AE Gas Valve - LP ●
RTG20000AF Gas Valve - Natural ●
RTG20000AW Gas Inlet Connector 1/2 ●
RTG20000AS Burner Assembly ●
RTG20000AP Burner Manifold - LP ●
RTG20000AR Burner Manifold - Natural ●
RTG20000BF Ignitor Electrode ●
RTG20000S High Limit Switch ●
RTG20000X Flame Rod ●
RTG20000BH Ignitor Coil ●
RTG20000AH Fan Assembly with Board ●
RTG20000BG Water Control Valve ●

RTG20006AS Inlet Water Filter ●
RTG20000AD Bypass Pipe ●

RTG20000AX Water Bypass ●
RTG20000T Heat Exchanger Thermistor - Yellow ●
RTG20000U Outlet Thermistor - Black ●
RTG20000V Inlet Thermistor - White ●
RTG20000BA Cold Inlet Connector ●
RTG20000AY Drain Plug ●
RTG20000AZ Hot Outlet Connector ●
RTG20000AB Door Filter Screen ●
RTG20000AC Door Switch ●
RTG20000AU Display Board ●
RTG20000AV Display Control Board ●
RTG20000BK Air Flow Switch ●
RTG20186 Replacement Screw Kit ●
RTG20206 Replacement O-Ring Kit ●

Rheem Part # Description RTG-42PV

Sea-Level Program Chip

RTG20000BD Program Chip - 0-3280 NAT ●
RTG20000BE Program Chip - 0-3280 LP ●

High Altitude Program Chips - 3281 - 6560 Feet

RTG20000AK Program Chip - 3281-6560 NAT ●
RTG20000AJ Program Chip - 3281-6560 LP ●

Ultra High Altitude Program Chips - 6560 - 9840 Feet

RTG20000AM Program Chip - 6560-9840 NAT ●
RTG20000AL Program Chip - 6560-9840 LP ●

30 | for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters

Tankless Model Cross Reference

Rheem RUUD Richmond EcoSense Paloma Retail Paloma

RTG2-42PVN RUTG2-42PVN RMTG2-42PVN NA PTG2-42PVN PH-16FISN
RTG2-42PVP RUTG2-42PVP RMTG2-42PVP NA PTG2-42PVP PH-16FISP

RTG-53PVN RUTG-53PVN RMTG-53PVN ECO-145PVN* PTG-53PVN PH-20RIFSN
RTG-53PVP RUTG-53PVP RMTG-53PVP ECO-141PVP* PTG-53PVP PH-20RIFSP
RTG-53XN RUTG-53XN RMTG-53XN ECO-141XN* PTG-53XN PH-20ROFN
RTG-53XP RUTG-53XP RMTG-53XP ECO-141XP* PTG-53XP PH-20ROFP
RTG-53DVN RUTG-53DVN RMTG-53DVN ECO-141DVN* PTG-53DVN PH-20RDVSN
RTG-53DVP RUTG-53DVP RMTG-53DVP ECO-135DVP* PTG-53DVP PH-20RDVSP

RTG-66DVN RUTG-66DVN RMTG-66DVN ECO-180DVN* PH-25RDVSN
RTG-66DVP RUTG-66DVP RMTG-66DVP ECO-180DVP* PH-25RDVSP
RTG-66XN RUTG-66XN RMTG-66XN ECO-180XN* PH-25ROFN
RTG-66XP RUTG-66XP RMTG-66XP ECO-180XP* PH-25ROFP

RTG-74PVN* RUTG-74PVN* RMTG-74PVN* PTG-74PVN* PH-28RIFSN
RTG-74PVP* RUTG-74PVP* RMTG-74PVP* PTG-74PVP* PH-28RIFSP
RTG-74XN* RUTG-74XN* RMTG-74XN* PTG-74XN* PH-28ROFN
RTG-74XP* RUTG-74XP* RMTG-74XP* PTG-74XP* PH-28ROFP
RTG-74DVN* RUTG-74DVN* RMTG-74DVN* PTG-74DVN* PH-28RDVSN
RTG-74DVP* RUTG-74DVP* RMTG-74DVP* PTG-74DVP* PH-28RDVSP

RTGL74PVN** RUTGL74PVN** RMTGL74PVN** ECO200PVN*
RTGL74PVP** RUTGL74PVP** RMTGL74PVP** ECO200PVP*
RTGL74XN** RUTGL74XN** RMTGL74XN** ECO200XN*
RTGL74XP** RUTGL74XP** RMTGL74XP** ECO200XP*
RTGL74DVN** RUTGL74DVN** RMTGL74DVN** ECO200DVN*
RTGL74DVP** RUTGL74DVP** RMTGL74DVP** ECO200DVP*

GT-199PVN* GT-199PVN* NA NA NA PH-28CIFSN
GT-199PVP* GT-199PVP* NA NA NA PH-28CIFSP
GT-199XN* GT-199XN* NA NA NA PH-28COFN
GT-199XP* GT-199XP* NA NA NA PH-28COFP
GT-199DVN* GT-199DVN* NA NA NA PH-28CDVSN
GT-199DVP* GT-199DVP* NA NA NA PH-28CDVSP

RTG-64DVN RUTG-64DVN RMTG64DVN ECO150DVN3 PH2-20RDVSN
RTG-64DVP RUTG-64DVP RMTG64DVP ECO150DVP3 PH2-20RDVSP
RTG-64XN RUTG-64XN RMTG64XN ECO150XN3 PH2-20ROFN
RTG-64XP RUTG-64XP RMTG64XP ECO150XP3 PH2-20ROFN

RTG-84DVN RUTG-84DVN RMTG84DVN ECO180DVN3 PH2-25RDVSN
RTG-84DVP RUTG-84DVP RMTG84DVP ECO180DVP3 PH2-25RDVSP
RTG-84XN RUTG-84XN RMTG84XN ECO180XN3 PH2-25ROFN
RTG-84XP RUTG-84XP RMTG84XP ECO180XP3 PH2-25ROFN

RTG-95DVN RUTG-95DVN RMTG95DVN ECO200DVN3 PH2-28RDVSN
RTG-95DVP RUTG-95DVP RMTG95DVP ECO200DVP3 PH2-28RDVSP
RTG-95XN RUTG-95XN RMTG95XN ECO200XN3 PH2-28ROFN
RTG-95XP RUTG-95XP RMTG95XP ECO200XP3 PH2-28ROFN

RTGH-95DVN RUTGH-95DVN RMTGH95DVN ECOH200DVN PHH-32RDV
RTGH-95DVP RUTGH-95DVP RMTGH95DVP ECOH200DVP PHH-32RDV
RTGH-95XN RUTGH-95XN RMTGH95XN ECOH200XN PHH-32ROF
RTGH-95XP RUTGH-95XP RMTGH95XP ECOH200XP PHH-32ROF

RTGH-84DVN RUTGH-84DVN RMTGH84DVN ECOH160DVN PHH-25RDV
RTGH-84DVP RUTGH-84DVP RMTGH84DVP ECOH160DVP PHH-25RDV
RTGH-84XN RUTGH-84XN RMTGH84XN ECOH160XN PHH-25ROF
RTGH-84XP RUTGH-84XP RMTGH84XP ECOH160XP PHH-25ROF

* Model may have an additional number attached such as a -1 or -2, these are generation designations. Model numbers with no

additional number are first generation, models with a -1 are second generation, models with a -2 are third generation, and so on.

**The RTGL and ECO models that do not have a suffix, such as a -1 or -2, are equivalent to the RTG Series -2 models and utilize

the same parts as the -2 models. RTGL and ECO models with a -1 suffix are equivalent to the RTG Series -1 models.

Condensing Tankless Model Cross Reference located on page 29.

for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters | 31

Tankless Parts Notes

32 | for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters

RHEEM CUSTOMER SERVICE

For more information,
call 1-866-720-2076
or visit rheemtankless.com

Division Office ...............................334-260-1500

Parts, Customer Service, Warranty ....1-800-621-5622

Fax .....................................1-800-535-9538

Email [e-mail]

Technical Service .........................1-800-HEATER3

(1-800-432-8373)

Email [e-mail]

Website ...................................www.rheem.com

In keeping with its policy of continuous progress and product improvement,
Rheem reserves the right to make changes without notice.

Tankless water heaters

Rheem Water Heating and Heating & Cooling Products
101 Bell Road • Montgomery, AL 36117-4305
1-866-720-2076 • www.rheem.com

Rheem Canada Ltd./Ltée • Water Heater Division
125 Edgeware Road, Unit 1, Brampton, Ontario L6Y 0P5

Printed in U.S.A. 12/10 WP TKPP-101-11

Endless hot water