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Installation & Operation Manual

22

First Hour Rating - 180°F Boiler Loop Water

(Universal Sizing - 45,000 - 295,000 Btu/hr)

Model

SIT030

SIT040

SIT050

Circulator Flow 

GPM

5

8

12

16

20

5

8

12

16

20

5

8

12

16

20

Domestic Outlet

115 140 115 140 115 140 115 140 115 140 115 140 115 140 115 140 115 140 115 140 115 140 115 140 115 140 115 140 115 140

45,000

108 83 108 83

122 97 122 97

135 110 135 110

60,000

136 103 136 103

150 118 150 118

164 131 164 131

75,000

165 123 165 123

179 138 179 138

194 151 194 151

95,000

171 128 191 142 202 150

217 165 217 165 217 165

233 179 233 179 233 179

115,000

171 128 191 142 223 165 240 177

217 165 252 189 252 189 252 189

233 179 268 204 273 207 273 207

140,000

191 142 223 165 240 177 267 196

252 189 267 200 282 211 286 208

268 204 292 221 307 232 322 242

165,000

240 177 267 196

267 200 282 211 286 213

292 221 307 232 334 251

195,000

334 251

225,000

260,000

295,000

MAX BTU INPUT

77008

89165

105532

114761

129676

92998

112972

123331

129574

132764

94115

114116

125111

134044

146207

Table 8C First Hour Rating -  180°F Boiler Loop Water (Universal Sizing)

8  

Performance data 

(continued)

Boiler Heating Capacity

First Hour Rating - 180°F Boiler Loop Water

(Universal Sizing - 45,000 - 295,000 Btu/hr)

Model

SIT065

SIT080

SIT119

Circulator Flow 

GPM

5

8

12

16

20

5

8

12

16

20

5

8

12

16

20

Domestic Outlet

115 140 115 140 115 140 115 140 115 140 115 140 115 140 115 140 115 140 115 140 115 140 115 140 115 140 115 140 115 140

45,000

153 128 153 128

163 138 163 138

197 172 197 172

60,000

183 149 183 149

193 159 193 159

226 193 226 193

75,000

213 170 213 170

222 180 222 180

255 213 255 213

95,000

252 197 252 197 252 197

261 207 261 207 261 207

294 241 294 241 294 241

115,000

291 226 291 226 291 226 291 226

300 235 300 235 300 235 300 235

333 268 333 268 333 268 333 268

140,000

305 235 319 245 338 259 338 259 338 259 304 238 347 268 347 268 347 268 347 268 384 302 382 302 382 302 382 302 382 302

165,000

305 235 319 245 356 271 386 293 388 294 304 238 349 270 374 288 395 302 395 302 387 306 429 337 429 337 429 337 429 337

195,000

319 245 356 271 386 293 388 294

349 270 374 288 409 312 424 323

483 375 485 376 485 376 485 376

225,000

356 271 386 293 388 294

374 288 409 312 424 323

501 388 548 421 541 416

260,000

388 294

424 323

573 438 596 454

295,000

596 454

MAX BTU INPUT

118488

129139

146864

163768

167924

115860

139106

154002

171229

181544

141419

190161

204795

237649

253504

Boiler Heating Capacity

Summary of Contents for SQUIRE SIT030

Page 1: ...d result in severe personal injury death or substantial property damage WARNING Save this manual for future reference SIT I O Rev H CAUTION The heat transfer medium must be water or other nontoxic flu...

Page 2: ...EFORE PROCEEDING 3 1 GENERAL INFORMATION Operating Restrictions 4 Single Wall Heat Exchanger 4 2 PRE INSTALLATION Locating the Tank 5 Recommended Clearances 5 3 BOILER SIDE PIPING Zone with Circulator...

Page 3: ...AS Do not try to light any appliance Do not touch any electric switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instruc...

Page 4: ...PT SEE NOTE 1 2 SIT030 SIT119 PART NO A in B in C in D in E in F in SIT030 SIT040 SIT050 SIT065 SIT080 SIT119 3 1 16 3 1 16 3 5 8 3 5 16 3 5 16 3 5 16 8 3 16 8 3 16 9 1 8 9 1 8 9 1 8 9 3 8 21 3 4 25 1...

Page 5: ...or appliance and must also be kept vertical on a level surface 2 Keep distance between boiler and water heater to a minimum to a reduce piping heat loss b provide minimal friction loss 3 Figure 1 1 on...

Page 6: ...s properly sized piping and a properly sized pump The system shown in FIG s 3 1 thru 3 4 are described below Zone with circulator to Aquastat This system is like the circulator zone system on a straig...

Page 7: ...EXCEED 4 PIPE DIA OR A MAXIMUM OF 12 APART TANK SENSOR AQUASTAT RELIEF VALVE Y STRAINER DRAIN FIELD SUPPLY HOT WATER OUT ANTI SCALD MIXING VALVE RECIRCULATION PUMP CHECK VALVE DRAIN ZONE 1 ZONE 2 ZONE...

Page 8: ...D SYSTEM CIRCULATOR SYSTEM SUPPLY SENSOR WHEN USED NOT TO EXCEED 4 PIPE DIA OR A MAXIMUM OF 12 APART TANK SENSOR AQUASTAT RELIEF VALVE Y STRAINER DRAIN FIELD SUPPLY RECIRCULATION PUMP CHECK VALVE DRAI...

Page 9: ...IN POINT TYPICAL MAKE UP WATER FROM SYSTEM BOILER CIRCULATOR SYSTEM CIRCULATOR TO SYSTEM SYSTEM SUPPLY SENSOR DRAIN DRAIN FIELD SUPPLY RECIRCULATION PUMP TANK SENSOR AQUASTAT Y STRAINER RECOMMENDED HO...

Page 10: ...RELIEF VALVE TYPICAL TANK SENSOR AQUASTAT TYPICAL CHECK VALVE SQUIRE SQUIRE BACKFLOW PREVENTER PRESSURE REDUCING VALVE PRESSURE GAUGE AIR SEPARATOR EXPANSION TANK BALL VALVE TYPICAL MAKE UP WATER FROM...

Page 11: ...reverse return piping layout see FIG 3 4 Each tank must have its own T P valve It is recommended that each tank be equipped with its own isolation valves unions and drains so that one tank may be rem...

Page 12: ...sed with water heaters are also called tempering valves or mixing valves An anti scald valve mixes cold water in with the outgoing hot water to assure that hot water reaching a building fixture is at...

Page 13: ...of piping can reduce discharge capacity directly connected to a drain Refer to local codes subject to freezing WARNING Do not install any valve between the T P relief valve and the tank connection or...

Page 14: ...VALVE SHUT OFF VALVE ANTI SCALD MIXING VALVE DRAIN FIELD SUPPLY RECIRCULATION PUMP TO BOILER FROM BOILER CHECK VALVE TANK SENSOR AQUASTAT SQUIRE Figure 4 2 Recommended Domestic Water Piping Please not...

Page 15: ...sensor has a built in high temperature limit set at 194 F NOTICE The sensor supplied contains an Auto Reset High Limit 194 F 3 The Knight boiler will automatically read the sensor and default the tank...

Page 16: ...ntrol TST20016 can be ordered from your local Lochinvar distributor 2 Connect Aquastat to the zone controller for the Indirect Water Heater Zone 3 Adjust Aquastat to the desired temperature INDIRECT T...

Page 17: ...xtended period of time after installation Flush the indirect water heater by drawing at least three times its volume from the tank 3 Make sure that all electrical connections are made correctly and th...

Page 18: ...s to allow air to escape from the system 4 When a steady stream of water flows from the faucets the water heater is filled Close the faucets and check for water leaks at the water heater drain valve c...

Page 19: ...IT030 27 0 1 1 1 5 160 183 99 000 14 0 3 9 SIT040 40 0 1 6 0 9 181 208 115 000 14 0 4 5 SIT050 51 6 1 7 0 8 209 255 133 000 14 0 5 3 SIT065 67 0 1 9 0 7 263 327 154 000 14 0 5 7 SIT080 81 5 2 1 0 6 26...

Page 20: ...Hour Rating of no less than 165 gallons Fixture Count Guide To quickly estimate the minimum gallons of hot water required based on a family size number of baths and hot water appliances the First Hour...

Page 21: ...9574 132764 94115 114116 125111 134044 146207 Boiler Heating Capacity Table 8B First Hour Rating 180 F Boiler Loop Water Knight Boiler First Hour Rating 180 F Boiler Loop Water Knight Boiler SIT065 SI...

Page 22: ...ler Heating Capacity First Hour Rating 180 F Boiler Loop Water Universal Sizing 45 000 295 000 Btu hr Model SIT065 SIT080 SIT119 Circulator Flow GPM 5 8 12 16 20 5 8 12 16 20 5 8 12 16 20 Domestic Out...

Page 23: ...Heating Capacity First Hour Rating 200 F Boiler Loop Water Universal Sizing 45 000 295 000 Model SIT065 SIT080 SIT119 Circulator Flow GPM 5 8 12 16 20 5 8 12 16 20 5 8 12 16 20 Domestic Outlet 115 14...

Page 24: ...for section 3 Boiler Side Piping FIG 3 1 3 4 a new image for section 4 Domestic Side Tank Piping FIG 4 2 and the update of the Pressure Drop chart on page 6 Revision E ECO C06035 reflects the update o...

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