Lochinvar 1.0- 1.3- 1.5 Installation / Replacement Procedure, Lockout Codes Input Registers 30016

Page 19

Modbus Instructions

6Troubleshooting (continued)

Lockout Codes (Input Registers 30016 and 30025)

1.

Turn OFF the main electrical power to the appliance.

161 = EEPROM code Parameters not Re-Programmed by

2. Turn OFF the main manual gas shutoff to the appliance.

 

 

Lochinvar

3.

Unplug the three (3) wire harnesses on the MTR01 control

164 = EEPROM code No Reset Allowed (> 15 minutes)

 

board (see FIG. 6-1).

166 = EEPROM code Auto Reset High Limit

4.

Unscrew the four (4) mounting nuts on the MTR01 control

167 = EEPROM code Blocked Drain

 

board and set aside. Remove the MTR01 control board (see

168 = EEPROM code Louver Proving

 

 

FIG. 6-2).

169 = EEPROM code Gas Pressure Sw

 

 

 

170 = EEPROM code Flow Switch

5.

Replace / install the new MTR01 control board.

177 = Sensor 3 short (Flue Sensor)

6. Replace the four (4) mounting nuts removed in Step 4.

178 = Sensor 3 open (Flue Sensor)

7.

Reconnect all three (3) wire harnesses unplugged in Step 3.

179 = Sensor 2 short (Inlet Sensor)

180 = Sensor 2 open (Inlet Sensor)

8.

Turn on the main electrical power and the main manual gas

192 = Sensor 1 short (Outlet Sensor)

 

shutoff to the appliance.

193 = Sensor 1 open (Outlet Sensor)

 

9. Configure the MTR01 control board and unit controls per

204 = CRC EEPROM failed

 

this manual and resume operation.

205 = EEPROM programmed (display shows “PP”)

 

 

 

206 = EEPROM error in programming

Figure 6-2_Control Panel w/MTR01 Control Board

207 = Write error EEPROM

 

 

229 = EEPROM code Watch Dog

 

 

230 = EEPROM code fan low (should be high)

 

 

231 = EEPROM code fan high (should be low)

 

 

232 = EEPROM code no flame when running

 

 

233 = EEPROM code no flame after ignition

 

 

234 = EEPROM code simultaneous output APS and Fan

 

 

235 = EEPROM code APS active not Closed

 

 

236 = EEPROM code APS active not Open

 

 

237 = EEPROM code flame out of sequence

 

 

239 = EEPROM code when gas valve relay test fails

 

UNSCREW THE FOUR (4)

240 = EEPROM code MRHL

 

MOUNTING NUTS ON THE MODBUS

32767 = Code not present

CONTROL BOARD (MTR01) AND SET

 

 

ASIDE TO SECURE THE

Installation / Replacement Procedure

 

NEW MTR01 CONTROL BOARD

 

TO THE CONTROL PANEL

Figure 6-1_MTR01 Control Board

1UNPLUG THREE (3) WIRE HARNESSES

 

2

3

19

 

Image 19
Contents Sync Models 1.0 1.3 Modbus Communication InstructionsContents Addressing ConfigurationParity Timing SpecificationsData Transmission Mode Modbus Board DiagnosticsDec Modbus Function SetName Modbus Exception CodesPrimary Data Tables Memory MapSync Boiler Memory Map Holding Registers Configuration BitsPhysical Wiring Wiring RequirementsSecondary Secondary Smart Touch Control Module Primary 4Control Location Typical Boiler System WiringPhysical Configuration Cascade with individual Monitoring Unit Operation Demand ConfigurationUnit Operation with Modbus Communications DHW with direct control Hot Water GenerationCascade DHW with remote controlMonitoring Only Deg C Deg F Voltages Rate and Temperature ConversionsTemperature RateTroubleshooting Lockout Codes Input Registers 30016 Installation / Replacement ProcedureLOW Voltage 120 VAC High Voltage Diagrams2Ladder DiagramPart 3Wiring Diagram

1.0- 1.3- 1.5 specifications

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