Noritz NRC663-FSV User Manual

Model NRC663-FSV (EZTR40) Series

Residential Condensing Tankless Water Heater

Specification Sheet

• Standard Input- Gas consumption ranges from 15,000 BTUh to 120,000 BTUh

• Capacity Range- Flow rates from 0.5 GPM up to 6.6 GPM

• Compact Design- ANSI Z21.10.3/CSA 4.3 certified design for indoor

wall-mounting

• Durable Steel Casing with Polyester Coating

• Venting Options- Indoor venting only. N-Flex Kit (included) is designed for the

installation inside of B-Vent as a sleeve.

• Direct Electronic Ignition

• Energy Factor- 0.91(NG) 0.91(LP)

• Temperature Controls- Includes built in display that can preset the output

temperature to either 120°F, 135°F, or 140°F

• Power Cord Installation Kit- 6’ power cord is included and attached

• Safety Devices- Flame Sensor, Overheat Prevention Device, Lighting Protection

Device, Freeze Protection, Condensate Overfill, Fan Rotation Detector

• Additional Features - Temperature Lockout, High Elevation Adjustment

• 12-Year* Limited Heat Exchanger Warranty for Standard Residential Use

• 5-Year Limited Parts Warranty

• Gas Line- Use new or existing 1/2” gas line. For supply gas pressure <8” W.C. use

gas line up to 10’, for supply pressure >= 8” W.C. use gas line up to 100’.

• Approvals- CSA, UPC**, NSF, Low NOx Approved by SCAQMD [<14 ng/J or
20ppm]

NRC663-FSV

NRC663-FSV - ____

Remote Controller (#RC-7651M)

Condensate Neutralizer (#NC-1)

Isolation Valves (#IK-WV-200-1(-LF))*

Remote Controller Cord (#RC-CORD10)

Remote Controller Cord (#RC-CORD26)

Vent Kit (#N-FlexKit2”-35)*

*Included In Box with EZTR40

LOW-LEAD

* 12 Years replacement on the heat exchanger when the product is used in a single family dwelling. 3 Years replacement on heat exchanger when the product is used for

commercial capacity, if it is used in other than a single family dwelling, or if the product is supplied with pre-heated or circulated water (an aquastat being the minimum
pump control requirement). Refer to the Noritz Limited Warranty for complete coverage details.

** This product complies with California AB 1953 Low Lead Law and Section 1417(d) of the Safe Drinking Water Act.

NORITZ AMERICA CORPORATION

11160 Grace Avenue, Fount ain Valley, CA 92708 Tel. 1-866-7NORITZ www.noritz.com

Dimensions

Φ0.5"(Φ13mm)

4×

6×0.24"×0.4"(6×10mm)OBLONG HOLE

6.7"(170mm)

5.5"(140mm)

3.9"(100mm)

2.8"(70mm)

1.4"(36mm)

29.1"(740mm)

1.4"(36mm)

2.8"(70mm)

3.9"(100mm)

5.5"(140mm)

6.7"(170mm)

6×0.24"×0.4"(6×10mm)OBLONG HOLE

4×Φ0.5"(Φ13mm)

0.4"(10mm) 7.8"(197mm)

0.4"(10mm)

1.5"(38mm)

1.6"(40mm)

2.8"(71mm)

(26.0")

661

Temperature
Rise (°F)

Flow Rate

(GPM)

9.4"(240mm)

30

6.6

4.7"(120mm)

1.0"(25mm)

AIR INLET

HOT WATER OUTLET(3/4")

WATER DRAIN VALVE

40

5.5

FLUE COLLAR

27.2"(690mm)

3.3"(83mm)

(VIEW FROM TOP)

45

4.9

18.3"(464mm)

17.7"(450mm)

(FRONT VIEW)

17.7"(450mm)

15.6"(397mm)

2.2"(56mm)

Flow Rates

50

4.4

60

3.7703.2

10.9"(278mm)

O.D.Φ3.9"(Φ99.5mm)

I.D.Φ2.4"(Φ60.8mm)

DISPLAY WINDOW

2.2"(55mm)

COLD WATER INLET(3/4"
WATER DRAIN VA
(WATER FILTER)

LVE

80

2.8

HEIGHT OF EACH FITTING FROM CASE

HOT WATER OUTLET

COLD WATER INLET

CONDENSATE DRAIN

GAS INLET

(VIEW FROM BOTTOM)

E DRAIN(1/2")CONDENSAT

6.6"(168mm)

)

1.9"(49mm)

14.6"(372mm)

15.4"(390mm)

90

2.6

100

2.2

TOP

1.9"(48mm)

TOP

2.4"(61mm)

BOTTOM

BOTTOM

VALVEWATER DRAIN

VALVETER DRAIN WA

2.0"(51mm)

WIRING THOROUGH

(AC120V)

GAS INLET(1/2"

0.8"(20mm)

2.0"(50mm)

6.3"(161mm)

)

WA

Y

40

35

30

25

20

Pressure loss [psi]

15

10

5

0

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0

Pressure Loss Characteristics

Flow rate [GPM]

90

80

70

60

50

40

Pressure loss [Ft. of head]

30

20

10

0

Specifications

Model Name

Weight

Water Holding Capacity

Connection
Sizes

Power

Freeze Protection

Temperature Settings with
Optional Remote Controller

Default Temperature Options

Water Inlet

Hot Water Outlet

Gas Inlet

Condensate Drain

Supply

Consumption

NG: 83W LP: 80W Freeze Prevention 129W

°F Mode

°C Mode
°F Mode
°C Mode

NRC663-FSV (EZTR40)

50 (pounds)

0.2 Gallon (0.9 L)

3/4"

3/4"

1/2"

1/2"

120VAC (6 0Hz)

Outdoor: -4

115-140°F (In 5°F intervals) (6 Options)

46, 47, 48, 50, 55, 60°C (6 Options)

120, 1 30, 135, 14 0°F (De fault is 120°F)

50, 55, 57, 60°C (Default is 50°C)

°F

ut notice.

Rev.

3/15