CODE

DESCRIPTION

231

Lead Lag CH setpoint was invalid

232

Lead Lag CH time of day setpoint was invalid

233

LL outdoor temperature was invalid

234

Lead Lag ODR time of day setpoint was invalid

235

Lead Lag ODR time of day setpoint exceeded

 

normal setpoint

236

Lead Lag ODR max outdoor temperature was

 

invalid

237

Lead Lag ODR min outdoor temperature was

 

invalid

238

Lead Lag ODR low water temperature was invalid

239

Lead Lag ODR outdoor temperature range was

 

too small (minimum 12°C / 22°F)

240

Lead Lag ODR water temperature range was too

 

small (minimum 12°C / 22°F)

241

Lead Lag DHW setpoint was invalid

242

Lead Lag Mix setpoint was invalid

243

Lead Lag CH demand switch was invalid

244

Lead Lag CH setpoint source was invalid

245

RESERVED

246

CH setpoint was invalid

247

CH time of day setpoint was invalid

248

CH outdoor temperature was invalid

249

CH ODR time of day setpoint was invalid

250

CH ODR time of day setpoint exceeds normal

 

setpoint

251

CH max outdoor setpoint was invalid

252

CH min outdoor setpoint was invalid

253

CH min water setpoint was invalid

254

CH outdoor temperature range was too small

255

CH water temperature range was too small

256

Steam setpoint was invalid

257

Steam time of day setpoint was invalid

258

Steam minimum pressure was invalid

259

CH ODR min water temperature was invalid

260

RESERVED

261

DHW setpoint was invalid

262

DHW time of day setpoint was invalid

263

DHW storage setpoint was invalid

264

STAT may not be a DHW demand source when

 

Remote Stat is enabled

265-266

RESERVED

267

STAT may not be a CH demand source when

 

Remote Stat is enabled

268

CH 4mA water temperature setting was invalid

269

CH 20mA water temperature setting was invalid

270

Steam 4mA water temperature setting was invalid

271

Steam 20mA water temperature setting was invalid

272

Abnormal Recycle: Pressure sensor fault

273

Abnormal Recycle: Safety relay drive test failed

CODE

DESCRIPTION

274

Abnormal Recycle: Demand off during Pilot Flame

 

Establishing Period

275

Abnormal Recycle: LCI off during Drive to Purge

 

Rate

276

Abnormal Recycle: LCI off during Measured Purge

 

Time

277

Abnormal Recycle: LCI off during Drive to Lightoff

 

Rate

278

Abnormal Recycle: LCI off during Pre-Ignition test

279

Abnormal Recycle: LCI off during Pre-Ignition time

280

Abnormal Recycle: LCI off during Main Flame

 

Establishing Period

281

Abnormal Recycle: LCI off during Ignition period

282

Abnormal Recycle: Demand off during Drive to

 

Purge Rate

283

Abnormal Recycle: Demand off during Measured

 

Purge Time

284

Abnormal Recycle: Demand off during Drive to

 

Lightoff Rate

285

Abnormal Recycle: Demand off during Pre-Ignition

 

test

286

Abnormal Recycle: Demand off during Pre-Ignition

 

time

287

Abnormal Recycle: Flame was on during Safe

 

Check

288

Abnormal Recycle: Flame was on during Drive to

 

Purge Rate

289

Abnormal Recycle: Flame was on during

 

Measured Purge Time

290

Abnormal Recycle: Flame was on during Drive to

 

Lightoff Rate

291

Abnormal Recycle: Flame was not on at end of

 

Ignition period

292

Abnormal Recycle: Flame was lost during Main

 

Flame Establishing Period

293

Abnormal Recycle: Flame was lost early in Run

294

Abnormal Recycle: Flame was lost during Run

295

Abnormal Recycle: Leakage test failed

296

Abnormal Recycle: Interrupted air flow switch was

 

off during Drive to Purge Rate

297

Abnormal Recycle: Interrupted air flow switch was

 

off during Measured Purge Time

298

Abnormal Recycle: Interrupted air flow switch was

 

off during Drive to Lightoff Rate

299

Abnormal Recycle: Interrupted air flow switch was

 

off during Pre-Ignition test

300

Abnormal Recycle: Interrupted air flow switch was

 

off during Pre-Ignition time

301

Abnormal Recycle: Interrupted air flow switch was

 

off during Main Flame Establishing Period

302

Abnormal Recycle: Ignition failed due to

 

interrupted air flow switch was off

303

Abnormal Recycle: ILK off during Drive to Purge

 

Rate

72

Page 72
Image 72
A.O. Smith 3400, 2600, 1700, 2000 instruction manual Steam 20mA water temperature setting was invalid

3400, 1700, 2000, 2600 specifications

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