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15

Maximum Natur

Natural Gas Delivery Capacity in Cubic Feet per Hour (0.60 Specific Gravity, 0.5" WC Pressure Drop) 

Contact the Gas Supplier for Btu/Cubic Ft. of the Supplied Gas.  1000 BTU/Cubic Ft. is a Typical Value

Maximum Liquified P

Liquified Petroleum (Undiluted) Delivery Capacity in Thousands of Btuh (0.5" WC Pressure Drop)

Length in Feet

Length in Feet

Pipe

Size

Pipe

Size

1/2"

1/2"

3/4"

3/4"

1"

1"

1 1/4"

1 1/4"

1 1/2"

1 1/2"

2"

2"

2 1/2"

3"

3 1/2"

4"

174

363
684

1404
2103

4050

6455

11,412
16,709
23,277

119
249
470
965

1445
2784
4437

7843

11,484
15,998

96

200
377

775

1161
2235
3563
6299
9222

12,847

Adapted from UPC 1997

82

171
323
663

993

1913
3049
5391
7893

10,995

73

152
286
588
880

1696
2703
4778
6995
9745

66

138
259

532
798

1536
2449
4329
6338
8830

61

127
239
490
734

1413

2253
3983
5831

8123

56

53

50

44

118

111

104

93

222

208

197

174

456

683

1315

2096
3705
5425
7557

428
641

1234

1966

3476
5090
7091

404
605

1165

1857
3284
4808
6698

358
536

1033
1646
2910
4261
5936

275
567

1071

2205
3307
6221

189
393
732

1496
2299
4331

152

315
590

1212
1858

3465

129
267
504

1039
1559
2992

114
237
448
913

1417
2646

103
217
409
834

1275

2394

96

196
378
771

1181
2205

89

185
346

724

1086
2047

83

173
322

677

1023
1921

78

162
307

630
976

1811

69

146
275

567
866

1606

63

132
252

511
787

1496

55

112
213

440
675

1260

Maximum Capacity of Flex TracPipe  in Cubic Feet per Hour of 

Natural Gas

 

(0.60 Specific Gravity, 0.5" WC Pressure Drop) 

Length in Feet

Pipe

Size

3/4"

1"

1 1/4"
1 1/2"

2"

206
383
614

1261
2934

147
269
418
888

2078

121
218
334
723

1698

105
188
284
625

1472

94

168
251
559

1317

86

153
227
509

1203

80

141
209

471

1114

75

132

194

440

1042

71

125

181

415
983

67

118

171
393

933

55

94

137
320
762

48

82

116
277
661

R

Maximum Capacity of Flex TracPipe  in Thousands of Btuh 

Liquified Petroleum

 

( 0.5" WC Pressure Drop) 

Length in Feet

Pipe

Size

3/4"

1"

1 1/4"
1 1/2"

2"

325
605
971

1993
4638

232
425
661

1404
3285

191
344
528

1143
2684

166
297
449
988

2327

149
265
397
884

2082

136

241
359
805

1902

126

222
330

745

1761

118

208

307

696

1647

112

197

286

656

1554

106

186

270

621

1475

87

143

217
506

1205

76

129

183

438

1045

R

** For reference only.  Please consult gas pipe manufacturer for actual pipe capacities.

** For reference only.  Please consult gas pipe manufacturer for actual pipe capacities.

Maximum Capacity for Gas Flex Connectors in Cubic Feet per Hour of 

Natural Gas

 

(0.60 Specific Gravity, 0.5" WC Pressure Drop) 

Length in Inches

Pipe

Size

1/2"
3/4"

1"

1 1/4"

180

150
290
581

1470

125
255
512

1200

106
215
442

1130

93

197
397
960

86

173
347
930

Length in Inches

Pipe

Size

1/2"
3/4"

1"

1 1/4"

288

240
465
930

2352

200
409
825

1920

169
344
708

1808

149
315
638

1536

137

278
556

1488

Maximum Capacity for Gas Flex Connectors in Thousands of Btuh 

Liquified Petroleum

 

( 0.5" WC Pressure Drop) 

** For reference only.  Please consult gas pipe manufacturer for actual pipe capacities.

TracPipe® is a registered trademark of Omega Flex.

3m (10')

6m (20')

9m (30')

12m (40')

15m (50')

18m (60')

21m (70')

24m (80')

27m (90')

37.5m (125')

30m (100')

3m (10') 6m (20')

9m (30')

12m (40')

15m (50') 18m (60') 21m (70')

24m (80')

27m (90') 30m (100')

60m (200')

37.5m (125') 45m (150')

60m (200')

3m (10')

6m (20')

9m (30')

12m (40')

15m (50')

18m (60')

21m (70')

24m (80')

27m (90')

30m (100') 45m (150')

60m (200')

3m (10')

6m (20')

9m (30')

12m (40')

15m (50')

18m (60')

21m (70')

24m (80')

27m (90')

30m (100') 45m (150')

300mm (12")

600mm (24")

900mm (36")

1200mm (48")

1500mm (60")

1800mm (72")

300mm (12")

600mm (24")

900mm (36")

1200mm (48")

1500mm (60")

1800mm (72")

Gas Line Sizing for a Noritz Tankless Gas Water Heater

Summary of Contents for NR98-DVC-CA

Page 1: ...roperly in accordance with this Installation Manual upon completion After completing installation please either place this Installation Manual in a plastic pouch and attach it to the side of the water...

Page 2: ...ide Warranty Installation Manual this document Part No Description 4 CVP 4STR 12 CVP 12STR 24 CVP 24STR 36 CVP 36STR Adjustable Part No Description CVT S Flange Adapter HorizontalTermination Flange El...

Page 3: ...y one of the units System Diagram Insulate the hot water piping to prevent heat loss Insulate and apply heating materials to the cold water supply piping to prevent heat loss and freezing of pipes whe...

Page 4: ...lectric shock Use Extreme Caution if Using With a Solar Pre Heater Using this unit with a solar pre heater can lead to unpredictable output temperatures and possibly scalding If absolutely necessary u...

Page 5: ...as a result Avoid installation in places where special chemical agents e g hair spray or spray detergent are used Ignition failures and malfunction may occur as a result Carbon Monoxide Poisoning Haza...

Page 6: ...nal noises while it is running Before installing make sure that the exhaust flue termination will have the proper clearances according to the National Fuel Gas Code ANSI Z223 1 State of California The...

Page 7: ...a where an effective shield makes a clearance of 600mm 24 or more in front of the exhaust outlet Check Illustration If possible leave 200mm 8 or more on either side of the unit to facilitate inspectio...

Page 8: ...ht 4 5m 15 above meter regulator assembly I Service regulator vent outlet 0 9m 3 J Nonmechanical air supply inlet or combustion air inlet to any other appliance K Mechanical air supply inlet L Above p...

Page 9: ...tor labeled High Elevation Disconnect as illustrated on the right This con nector is located inside the unit H IG H E L E V A T IO N D IS C O N N E C T Mounting Bracket upper Location of Screw Hole Lo...

Page 10: ...ntric type vent pipe specified by Noritz America Do not attempt to use materials that are not specified for use on this appliance WARNING Be sure to do CARBON MONOXIDE POISONING Follow all vent system...

Page 11: ...liance will be reduced by up to 8 Maximum Vent Length Adjustment Connector Two 90 elbows maximum length 3 m 9 ft with connector installed Two 90 elbows maximum length 9 m 29 ft with connector removed...

Page 12: ...termination from blockage by snow drifts or dam age from snow falling off of roofs Support the vent pipe with hangers at a minimum of every 7 Make the vertical pipe as short as possible Do not common...

Page 13: ...ent penetrates a floor or ceiling and is not running in a fire rated shaft a firestop and support is required When the vent termination is located not less than 8 from a vertical wall or similar obstr...

Page 14: ...I Z223 1 Natural Gas Meter See next page for the pipe capacity charts Noritz Tankless Gas Water Heater 199 900 Btuh Clothes Dryer 35 000 Btuh Barbecue 50 000 Btuh Gas Range Stove 65 000 Btuh 3m 10 3m...

Page 15: ...1 1114 75 132 194 440 1042 71 125 181 415 983 67 118 171 393 933 55 94 137 320 762 48 82 116 277 661 R Maximum Capacity of Flex TracPipe in Thousands of Btuh Liquified Petroleum 0 5 WC Pressure Drop L...

Page 16: ...stem or components previously used with a nonpotable water heating appliance When water is required in one part of the system at a higher temperature than in the rest of the system means such as a mix...

Page 17: ...wet the floor If neces sary provide drain piping or use a drain hose to remove the water Hot water piping Do not use lead PVC iron or any piping which has been treated with chromates boiler seal or ot...

Page 18: ...alve Type of Water Hardness Level Treatment Device Flush Frequency Type of Water Hardness Level Treatment Device Flush Frequency Soft 0 1 gpg 1 3 gpg 0 17 mg L None None None None None None Slightly H...

Page 19: ...t included with the pump 4 Set the flow switch to deactivate the Air Handler when the domestic hot water flow reaches 11 3 L min 3 GPM Adjust as necessary to prevent cycling 5 If the system requires w...

Page 20: ...ng in possible freezing damage Do not let the power cord contact the gas piping Tie the redundant power cord out side the water heater Putting the redundant length of cord inside the water heater may...

Page 21: ...isplay When setting the maximum temperature to 55 83 C 130 180 F 1 Turn the water heater off by pressing the ON OFF button on the remote controller 2 Disconnect electrical power to the water heater 3...

Page 22: ...m a wall circuit to the pump 5 Replace the front cover Pump Wiring This feature is not available when using the Quick Con nect Multi System feature Relay connection with larger pumps 85 W 1 Locate and...

Page 23: ...lack 3 White 4 Green 5 Blue 6 Blue 1 White 2 Green 3 Red 4 Black 5 Blue 6 Blue Connecting the Quick Connect Cord to the two units 1 Turn off the power 2 Remove the front cover of the heater 4 screws 3...

Page 24: ...r a proper blue color and consistency If the flame does not appear normal the burner may need to be cleaned If the burner needs to be cleaned it must be performed by a qualified service technician Do...

Page 25: ...ower to the unit 8 The unit will now operate whenever hot water is called for If the unit will not operate follow the shutdown instructions and call a service technician Shutdown Instructions 1 Stop a...

Page 26: ...6 13mm 0 5 HEIGHT OF EACH FITTINGS FROM BOTTOM OF CASE 56mm 2 2 NR98 DVC CA HOT WATER OUTLET COLD WATER INLET GAS INLET 10 45mm 0 4 1 8 336mm 13 2 127mm 5 0 79mm 3 1 350mm 13 8 334mm 13 1 FLUE COLLAR...

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