Lochinvar 2.5, 1.5, 3 Parameter table, Menu, Sub Parameter Name See Min Max Default User Installer

Page 13

Service Manual

1 Service (continued)

Parameter table

Table 1B This table lists SMART TOUCH control module parameters and where to access them

Menu

SETUP

A

INITIAL

 

SETPOINTS

B

 

RESET

 

OUTDOOR

C

 

Sub

Parameter Name

See

Min

Max

Default

User

Installer

 

 

 

 

 

Item

(as shown on the LCD screen)

Page

Value

Value

Value

Access

Access

1

Clock

18

N/A

N/A

N/A

Yes

Yes

 

 

 

 

 

 

 

 

2

Date

18

N/A

N/A

N/A

Yes

Yes

 

 

 

 

 

 

 

 

3

SH Setpoint

18

32

185

120

Yes

Yes

 

 

 

 

 

 

 

 

4

HWG Tank Setpoint

18

32

185

120

Yes

Yes

 

 

 

 

 

 

 

 

5

MRHL Setpoint

18

32

205

205

Yes

Yes

 

 

 

 

 

 

 

 

6

ARHL Setpoint

18

32

200

200

Yes

Yes

 

 

 

 

 

 

 

 

7

SH Setpoint at Low Outdoor Temp.

19

32

185

180

Yes

Yes

 

 

 

 

 

 

 

 

8

SH Setpoint at High Outdoor Temp.

19

32

185

68

Yes

Yes

 

 

 

 

 

 

 

 

9

Low Outdoor Temperature

19

-22

86

23

Yes

Yes

 

 

 

 

 

 

 

 

10

High Outdoor Temperature

19

-22

86

86

Yes

Yes

 

 

 

 

 

 

 

 

11

Boiler Pump Mode

24

N/A

N/A

N/A

No

Yes

 

 

 

 

 

 

 

 

12

System Pump Mode

24

N/A

N/A

N/A

No

Yes

1

SH Min User Setpoint

18

32

185

32

No

Yes

 

 

 

 

 

 

 

 

2

SH Max User Setpoint

18

32

185

185

No

Yes

 

 

 

 

 

 

 

 

3

SH Setpoint

18

32

185

125

Yes

Yes

 

 

 

 

 

 

 

 

4

SH Offset

18

0

36

9.9

No

Yes

 

 

 

 

 

 

 

 

5

SH Differential

18

0

72

19.8

No

Yes

 

 

 

 

 

 

 

 

6

HWG Tank Setpoint

18

32

185

120

Yes

Yes

 

 

 

 

 

 

 

 

7

HWG Tank Differential

18

0

10

6.3

No

Yes

 

 

 

 

 

 

 

 

8

MRHL Setting

18

32

205

204.8

Yes

Yes

 

 

 

 

 

 

 

 

9

ARHL Setting

18

32

200

199.4

Yes

Yes

 

 

 

 

 

 

 

 

10

HWG Minimum User Setpoint

19

32

185

60

No

Yes

 

 

 

 

 

 

 

 

11

HWG Maximum User Setpoint

19

32

185

185

No

Yes

 

 

 

 

 

 

 

 

12

HWG Boiler Setpoint

19

32

185

180

No

Yes

 

 

 

 

 

 

 

 

13

HWG Boiler Offset

19

0

36

9.9

No

Yes

 

 

 

 

 

 

 

 

14

HWG Boiler Differential

19

0

72

185

No

Yes

1

SH Setpoint at Low Outdoor Temp.

19

32

185

180

Yes

Yes

 

 

 

 

 

 

 

 

2

SH Setpoint at High Outdoor Temp

19

32

185

68

Yes

Yes

 

 

 

 

 

 

 

 

3

Low Outdoor Temperature

19

-22

86

23

Yes

Yes

 

 

 

 

 

 

 

 

4

High Outdoor Temperature

19

-22

86

86

Yes

Yes

 

 

 

 

 

 

 

 

5

Outdoor Air Shutdown

19

32

122

79.7

No

Yes

 

 

 

 

 

 

 

 

6

OA Shutdown Differential

20

32

122

79.7

No

Yes

 

 

 

 

 

 

 

 

13

Image 13
Contents Models 1.5 2.0 2.5 3.0 Contents Handling ceramic fiber materials Please read before proceedingNiosh stated First Aid When servicing boiler Service What is in this manual?Maintenance TroubleshootingBoiler piping ServiceHome Screen Control inputs Smart Control ModuleStrip Control outputsGeneral Operation Access modesHow the boiler operates How the control modules operateTo adjust and save parameters reference FIG Sequence of operation Value Access Sub Parameter Name See Min Max Default User InstallerParameter table MenuDelay Ramp BMS Setup Setback HWG Night Pumps Viewable and changeable control parameters Initial SetupSet Points Outdoor Reset Ramp Delay Advanced Setup SH/HWG Night Setback Cascade ModBusCascade Offset Minimum On/Off TimePumps Service Notification in Months Service NotificationService Notification Running Hours Service Notification Cycles8Cascade Screen Service Cascade Screen9Graph ScreenParameter Selection Graph Screen11History ScreenLockout Faults Service History Screen13History ScreenRuntime History 14Service Screen Service ScreenService technician Maintenance Maintenance and annual startupOwner maintenance See the Crest User’s Information Manual for InstructionsMaintenance Check water system Flue vent system and air pipingCheck expansion tank Check boiler relief valveCheck all boiler wiring Check ignition ground wiringCheck control settings Check flame signalReview with owner Cleaning boiler heat exchangerBefore troubleshooting TroubleshootingCheck the following Check control module fusesTroubleshooting Checking temperature sensors No Pump Cutoff Open Low WaterFlame Failure Anti-cyclingIgnition Flame Out Flame Out SequenceRunning Unit was running and lost the flame Gas Valve / Relay FailureManual Reset Auto ResetHigh Limit High Limit OpenFault Description Corrective Action Flue Temp High Louver Proving Sw OpenDelta T High Outlet TempOutlet Temp High Service BlkRem Ctrl Flt Parameters SavedSensor Open Switch OpenSensor Shorted Flue SensorBurner Supply TemperatureDifferential Internal Fault Resets Try LaterToo Many Writing toNo Error Stored Watch Dog ErrorWrite EEProm CRC ParametersGas Valve Adjustment Combustion Analysis ProcedureOr Obstruction Gas Supply Pressure2Gas Valve Adjustment Models 1.5 Gas valve adjustment procedurePage
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3, 2, 3.5, 2.5, 1.5 specifications

Lochinvar is a leader in manufacturing high-efficiency water heating solutions, and their Lochinvar 1.5, 1.3, and 1.0 models exemplify the company's commitment to innovation and performance. These advanced heating systems are designed to meet the diverse needs of commercial and residential applications, providing reliable hot water while ensuring energy efficiency and environmental sustainability.

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