Noritz N-0931M-DV Installation Manual Download Page 14

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Gas Line Sizing for a Noritz N-0931M-DV

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

Pipe

Size

Pipe

Size

1/2"

3/4"

1 1/4"

1 1/2"

2 1/2"

3 1/2"

10'

20'

30'

40'

50'

60'

70'

80'

90'

100'

125'

10'

20'

30'

40'

50'

60'

70'

80'

90'

100'

125'

150'

200'

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

200
377

775

1161
2235
3563
6299
9222

12,847

Adapted from UPC 1997

171
323
663

993

1913
3049
5391
7893

10,995

152
286
588
880

1696
2703
4778
6995
9745

138
259

532
798

1536
2449
4329
6338
8830

127
239
490
734

1413

2253
3983
5831

8123

118

111

104

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

196
378
771

1181
2205

185
346

724

1086
2047

173
322

677

1023
1921

162
307

630
976

1811

146
275

567
866

1606

132
252

511
787

1496

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 1/4"
1 1/2"

10'

20'

30'

40'

50'

60'

70'

80'

90'

100'

150'

200'

206
383
614

1261
2934

147
269
418
888

2078

121
218
334
723

1698

105
188
284
625

1472

168
251
559

1317

153
227
509

1203

141
209

471

1114

132

194

440

1042

125

181

415
983

118

171
393

933

137
320
762

116
277
661

Maximum Capacity of Flex TracPipe in Thousands of Btuh

Liquified Petroleum

( 0.5" WC Pressure Drop)

Length in Feet

Pipe

Size

3/4"

1 1/4"
1 1/2"

10'

20'

30'

40'

50'

60'

70'

80'

90'

100'

150'

200'

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

143

217
506

1205

129

183

438

1045

** 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 1/4"

12"

24"

36"

48"

60"

72"

180

150
290
581

1470

125
255
512

1200

106
215
442

1130

197
397
960

173
347
930

Length in Inches

Pipe

Size

1/2"
3/4"

1 1/4"

12"

24"

36"

48"

60"

72"

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.

Summary of Contents for N-0931M-DV

Page 1: ...ucted in this manual are not covered by the warranty Check that the installation was done properly in accordance with this Installation Manual upon completion After completing installation please eith...

Page 2: ...te Controller Cord 10ft 1 2 Optional Accessories The accessories listed below are not included with the units but may be necessary for installation Q ty Shape Part Part Shape Q ty Flue Terminal VT4 TL...

Page 3: ...etween the two units When connecting two units use only a single remote controller Note Connect the remote controller to only one of the units System Diagram Insulate the hot water piping to prevent h...

Page 4: ...solar pre heater can lead to unpredictable output temperatures and possibly scalding If absolutely necessary use mixing valves to ensure output temperatures do not get to scalding levels Do not use a...

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: ...ing to the National Fuel Gas Code ANSI Z223 1 State of California The water heater must be braced anchored or strapped to avoid moving during an earthquake Contact local utilities for code requirement...

Page 7: ...s restriction will not be applied to an area where an effective shield makes a clearance of 24 or more in front of the exhaust outlet Check Illustration If possible leave 8 or more on either side of t...

Page 8: ...ter regulator assembly 3 within a height 15 above meter regulator assembly I Service regulator vent outlet 3 J Nonmechanical air supply inlet or combustion air inlet to any other appliance 12 36 K Mec...

Page 9: ...Locating Screw Holes Mounting Structure When installing with bare hands take caution to not inflict injury Be careful not to hit electrical wiring gas or water piping while drilling holes Item CAUTIO...

Page 10: ...oo far Snow drift Tree Avoid installing the terminal where obstacles will block it Clearance from vent terminal If multiple units are installed terminals must be separated by 12 or more in a plain vie...

Page 11: ...in bad combustion If possible don t install the vent pipe through any enclosed areas If necessary consult the pipe manufacturer s instructions for clearances Install the vent terminal so that all exh...

Page 12: ...straight upwards Always have a horizontal section of venting Install a condensation drain in the horizontal section of the venting Appliance Adapter Firestop Firestop Support Roof Flashing RainCap Exh...

Page 13: ...the gas line consult local codes or the National Fuel Gas Code ANSI Z223 1 Natural Gas Meter See next page for the pipe capacity charts Noritz N 0931M DV 250 000 Btuh Clothes Dryer 35 000 Btuh Barbecu...

Page 14: ...c 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 10 20 30 40 50 60 70 80 90 100 150 200 206 383 614 1261 2934 147 269 418 888 2078...

Page 15: ...em 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 mixin...

Page 16: ...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 17: ...Heater Optional Sediment Filter Water Treatment Device Shutoff Valve Type of Water Hardness Level Treatment Device Flush Frequency Type of Water Hardness Level Treatment Device Flush Frequency Soft 0...

Page 18: ...ulation pump For pumps larger than 85W a relay connection must be used If the Pump Control Signal is not used an Aquastat may be used to control the pump 3 Use an Aquastat if the water heater is not c...

Page 19: ...e water heater Putting the redundant length of cord inside the water heater may cause electrical interference and faulty operation Disconnect Power Electrical Shock Hazard Do not turn power on until e...

Page 20: ...e controller 2 Disconnect electrical power to the water heater 3 Remove the front cover of the water heater 4 screws 4 Connect WATER TEMPERATURE ADJUSTMENT CONNECTOR tag connector to 180 F tag connect...

Page 21: ...and cause problems Be sure to hand tighten when screwing to the terminal block Power tools may cause damage to the terminal block 1 Check to make sure that the remote controller cord has plenty of sl...

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: ...1 4 26 2 1 1 3 9 4 3 7 23 1 0 4 0 4 1 6 120VAC WIRING THROUGHWAY WIRING THROUGHWAYS COLD WATER INLET WATER DRAIN VALVE WATER FILTER HOT WATER OUTLET WATER DRAIN VALVE GAS INLET 17 7 AIR INLET FLUE CO...

Page 27: ...Pipe Hot Water Return Line Size the water supply piping to allow for maximum flow rates of the units Hot Water 1 1 4 2 Water supply Also disconnect this connector on units 2 6 Disconnect this Connecto...

Page 28: ...n parallel The system controller will stop the units from heating when the tank is up to temperature and the unit will cut the flow through it to 2 6 GPM Install the plumbing so that a change in flow...

Page 29: ...onnect this Connector Disconnect this Connector Disconnect for system controller Disconnect for system controller Disconnect this Connector Remote Controller Cord PCB Power PCB PCB Power PCB Disconnec...

Page 30: ...otes on the Installation Location The remote should be installed in an easily accessible location Avoid installing in a place where water or steam can come into contact with the controller Avoid locat...

Page 31: ...ord Phillips Roundhead Wood Screw Wall Anchor 3 Remove the cover of the remote control mark the location of the screw holes and drill holes for the wall anchors 4 Insert the wall anchors screw the rem...

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