Rheem RTG-53PV, RTG-53X, RTG-53DV User Manual

RHEEM RESIDENTIAL TANKLESS

42†& 53 TANKLESS SERIES

Endless hot water for 1-2 bathroom homes

RTG2-42PV†indoor natural and LP models –
21,500 - 118,000 BTU max.

5.5 gal./min at 35° F rise max., 4.2 gal./min. at 45° F rise

Limited Warranty:

10-Year on heat exchanger, 3-Year on parts

See Residential Warranty Information Brochure for complete warranty information.

RTG-53PV indoor and RTG-53DV indoor direct vent
natural and LP models – 20,000 - 145,000 BTU max.*

6.8 gal./min at 35° F rise max., 5.3 gal./min. at 45° F rise

RTG-53X outdoor natural and LP models –
19,000 - 141,000 BTU max.*

6.8 gal./min at 35° F rise max., 5.3 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.

145,000 BTU
INDOOR DIRECT VENT

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

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units to operate as one
Exclusive! Guardian SBT™sensing burner technology

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Exclusive! Guardian OFW™overheat film wrap

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Exclusive! Two high-altitude options – up to 6,560 or 9,840 ft.** elevations

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above sea level
Exclusive! All Rheem models can be linked in up to 20 unit manifold installations

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by using the optional MIC-180 and MICS-180 manifold control assembly
All Rheem tankless models are third-party efficiency certified by GAMA

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Continuous hot water, energy saving and compact, space saving design

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Indoor units use Category III stainless steel vents and vent horizontally

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or vertically
Indoor models supplied with a 120 volt power cord

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Environmentally friendly Low NOx burner meets SCAQMD rule 1146

•

requirements
Installation vent kits available – sold separately

•

Indoor and outdoor models feature freeze protection to -20°F

•

* BTU varies by model and field type. See specifications for details.

** Not available on all models.

† Limited availability in Canada.

(altitude chip required – sold separately)

Tankless water heaters

141,000 BTU
OUTDOOR

118,000 & 145,000 BTU
INDOOR

Endless hot water

See reverse for specifications.

42 & 53 TANKLESS SERIES

Water Heater Flow Rate Curves

0

1

2

3

4

5

6

7

10 15 20 25 30 35 40 45 50 55 60 70 80 90 100

Delta-T

GPM

53 Max Flow

42 Max Flow

®

Specifications

D

ESCRIPTION FEATURES ROUGHING IN DIMENSIONS (SHOWN IN INCHES) ENERGY INFO.

M

ODEL INPUT TEMP.

NUMBER BTU/HR. TYPE RANGE

R

HEEM TANKLESS WATER HEATERS FOR 1-2 BATHROOM HOMES

RTG2-42PVN†

RTG-53PVN

RTG-53XN

RTG-53DVN

GAS WATER FLOW RATE VENT SHIP. D.O.E. ANN.

21,500 ­118,000 140° F

21,500 ­145,000 140° F

19,000 ­141,000 140° F

20,000 ­141,000

Indoor

Indoor

Outdoor

Indoor

DirectVent

G

PM @ 77° GPM @ 45° GPM @ 35°

RISE MAX. RISE MAX. RISE MAX. WATER GAS

100° to

100° to

100° to

100° to
140° F

2.5 4.2 5.5 3/4 3/4 20-1/2 13-3/4 6-1/4 3 35 .83 $220/$369

3.1 5.3 6.8 3/4 3/4 20-1/2 13-3/4 6-1/4 3 36 .82 $223/$374

3.0 5.3 6.8 3/4 3/4 20-1/2 13-3/4 6-1/4 N/A 36 .82 $223/$374

3.0 5.3 6.8 3/4 3/4 23 13-3/4 7-1/4

C

ONNECTION DIAMETER WEIGHT ENERGY OP. COST

HEIGHT WIDTH DEPTH (INCHES) (LBS.) FACTOR NAT/LP

3 by 5

CONCENTRIC

39 .82 $223/$374

All models are available in Natural Gas and Propane (LP).
For Propane replace the N with P when ordering.

135,000 for Propane model.

*

• Factory set maximum temperature is 120° F. See Use and Care Manual for setting.

• For installations above 3,280 feet, a high altitude chip is required. Refer to Rheem price list or consult
factory for details.

Consult factory for information on sizing the application.

•

Installation Vent Kits available separately: 3" diameter for RTG2-42PV† and RTG-53PV models.
Vent Termination Kits are required for Direct Vent models. Contact your distributor for details.

Proper gas pressure must be ensured to supply tankless gas water heaters – up to 118,000 BTU for
RTG2-42† models, and up to 145,000 BTU for RTG-53 models. (Consult your gas supplier)

Temperature Rise (°F)

Model Number 35°

45° 50° 60° 70° 77° 80° 90° 100°
RTG2-42† Water Flow (GPM) 5.5 4.2 3.8 3.2 2.7 2.5 2.4 2.1 1.9
RTG-53 Water Flow (GPM) 6.8 5.3 4.7 3.9 3.4 3.1 3.0 2.6 2.4

Above estimates are for sizing purposes only.

Energy Factor and Average Annual Operating Costs based on D.O.E.
(Department of Energy) test procedures. D.O.E. national average fuel rate
natural gas $1.218/therm; LP $1.87/gallon

.

† Limited availability in Canada.

These units are designed to meet or exceed ANSI (American National Standards Institute)
requirements and have been tested according to D.O.E. test procedures and meet or
exceed the energy efficiency requirements of NAECA, ASHRAE standard 90, ICC Code and
all state energy efficiency performance criteria for energy consuming appliances.

Before purchasing this appliance, read important energy cost and efficiency information
available from your supplier.

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

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

Rheem Canada Ltd./Ltée • Water Heater Division
128 Barton Street West, Hamilton, Ontario L8N 3P3

Rheem manufactures residential & commercial heating,
cooling & water heating products.

Printed in U.S.A. 07/08 WP Form No. 101-50-53CAN