Lochinvar 402 - 2072 service manual Parameter table a Boiler Operation, Only

Page 13

Copper-fin II/IIE Boiler and Water Heater Service Manual

1 Service (continued)

Parameter table A - Boiler Operation

Table 1D_This table lists SMART SYSTEM control module parameters and where to access them for boiler operation

ONLY

GENERAL

TEMPERATURESETTINGS

DATALOGGING

FUNCTIONS

DHWSETTINGS

RESETOUTDOOR

Menu

Sub

Description

See

User Access

Installer Access

Item

Page

Display

Modify

Display

Modify

 

 

 

1

User Code

17

Yes

Yes

Yes

Yes

 

2

Date and Time

17

Yes

Yes

Yes

Yes

 

3

Software Version (Software Ver)

17

Yes

No

Yes

Yes

A

4

Temperature Units (Temp Units)

17

Yes

Yes

Yes

Yes

5

SH Night Setback Offset (SH NSB Temp)

17

Yes

Yes

Yes

Yes

 

 

6

SH Night Setback Times (SH NSB Time)

17

Yes

Yes

Yes

Yes

 

7

DHW Night Setback Offset (DHW NSB Temp)

17

Yes

Yes

Yes

Yes

 

8

DHW Night Setback Times (DHW NSB Time)

17

Yes

Yes

Yes

Yes

 

1

SH Setpoint (SH Setpoint)

17

Yes

Yes

Yes

Yes

 

2

SH Minimum Setpoint (SH Min Setpt)

17

No

No

Yes

Yes

 

3

SH Maximum Setpoint (SH Max Setpt)

18

No

No

Yes

Yes

B

4

SH Offset

18

No

No

Yes

Yes

 

5

SH Differential (SH Differentl)

18

No

No

Yes

Yes

 

6

Manual Reset High Limit (Man Res Hi Lim)

18

Yes

Yes

Yes

Yes

 

7

Auto Reset High Limit (Aut Res Hi Lim)

18

Yes

Yes

Yes

Yes

 

1

Hours Running SH (Hours Run SH)

18

No

No

Yes

Yes

C

2

Hours Running DHW (Hours Run DHW)

18

No

No

Yes

Yes

3

Ignition Attempts (Ign Attempts)

18

No

No

Yes

Yes

 

 

4

Last 10 Lockouts

18

No

No

Yes

Yes

 

1

Clear Error Log (Clr Error Log)

18

No

No

Yes

Yes

 

2

Service Mode Delay (Service Delay)

18

No

No

Yes

Yes

 

3

Display Timeout (Display Time)

18

No

No

Yes

Yes

D

4

Bypass Valve Time (Bypass V Time)

18

No

No

Yes

Yes

 

5

Freeze Protection Pump On (Freeze Pump)

19

No

No

Yes

Yes

 

6

Freeze Protection Burner On (Freeze Burn)

19

No

No

Yes

Yes

 

7

Freeze Protection Differential (Freeze Differ)

19

No

No

Yes

Yes

 

1

Tank Setpoint

19

Yes

Yes

Yes

Yes

 

2

DHW Boiler Setpoint (DHW Blr Setp)

19

Yes

Yes

Yes

Yes

E

3

SH/DHW Switching Time (SH/DHW Switch)

19

Yes

Yes

Yes

Yes

 

4

DHW/SH Switching Time (DHW/SH Switch)

19

Yes

Yes

Yes

Yes

 

5

DHW Tank Differential (DHW Tank Diff)

19

No

No

Yes

Yes

 

1

Minimum Outdoor Temperature (Min Air Temp)

20

No

No

Yes

Yes

 

2

Maximum Outdoor Temperature (Max Air Temp)

20

No

No

Yes

Yes

 

3

Maximum SH Setpoint (Max SH Setpt)

20

No

No

Yes

Yes

F

4

Minimum SH Setpoint (Min SH Setpt)

20

No

No

Yes

Yes

5

Outdoor Shutdown Setpoint (Outdoor Shtdn)

20

Yes

Yes

Yes

Yes

 

6

Outdoor Shutdown Differential (Shutdown Diff)

21

Yes

Yes

Yes

Yes

 

7

Shift Reset Curve (Shift Reset)

21

No

No

Yes

Yes

 

8

Boost Temperature (Boost Temp)

21

Yes

Yes

Yes

Yes

 

9

Boost Time

21

Yes

Yes

Yes

Yes

13

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Page 12 Page 14
Contents Copper-fin II/IIE Boiler and Water Heater Models 402 Contents Handling ceramic fiber materials Please read before proceedingNiosh stated First Aid Service What is in this manual?Maintenance TroubleshootingCopper-fin display ServiceControl inputs Control outputs How the appliance operates General OperationHow the control module operates Sequence of operationOUT 123.8F129 Sequence of operationHTR Postpurge Display panel menu access Display panel parameter access Only Parameter table a Boiler OperationAnti-cycle Time Anti Cycl Tm Parameter table B Water Heater Operation BMS Service Notification Pumps Viewable and changeable control parameters Temperature settingsFunctions Data loggingDHW settings Outdoor air reset boiler only Anti-cycling Control modes Cascade Building Management System BMSCirculation pumps Service NotificationService technician Maintenance Maintenance and annual startupOwner maintenance See the User’s Information Manual for instructionsMaintenance Inspect/replace hot surface igniters Check relief valveInspect/replace hot surface igniter Check control settings Check all wiringInspect and clean burner Perform start-up and checks2Adjusting air shutter 399,999 750,000 Btu/ hr Models Checking manifold gas pressure Adjusting combustion air pressureValve Fitting Control Knob Review with owner Inspect and clean the heat exchangerOiled bearing circulators Before troubleshooting TroubleshootingCheck control module fuses Check the followingNo Burner No DisplayOperation Unit DoesResistance Temperature Checking temperature sensorsTemperature Resistance No Pump NoisyOperation Boiler Pump System Pump DHW PumpFlame Sequence Flow SwitchAnti-cycling No Flame Ign ErrorHSI Current Low Flame CKTNo Flame Auto ResetRunning High LimitInlet Low Manual ResetSensor Open Sensor ShortedTank Open Louver ProvingAPS Open APS ClosedRem Ctrl Flt Temp O/ShootParameters Progr Watch Dog Error Service BlkNo Error Stored Low Voltage
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402 - 2072 specifications

The Lochinvar 402 - 2072 is a versatile and highly efficient boiler designed to meet the heating demands of modern residential and commercial applications. This model stands out due to its innovative technologies, advanced features, and a high level of reliability, making it an ideal choice for consumers looking for an enduring and economical heating solution.

One of the primary characteristics of the Lochinvar 402 - 2072 is its impressive energy efficiency. With an exceptional annual fuel utilization efficiency (AFUE) rating, this boiler ensures minimal energy waste, allowing homeowners and business operators to save significantly on their energy bills. The model incorporates advanced condensing technology that enables it to extract heat from the combustion gases, maximizing heat transfer and reducing emissions.

The Lochinvar 402 - 2072 is built with a robust stainless steel construction that enhances durability and resilience against corrosion and other environmental factors. This material not only prolongs the lifespan of the unit but also contributes to its outstanding thermal efficiency. Additionally, the boiler's compact design allows for flexible installation options, making it suitable for various spaces, including tight utility rooms and basements.

Equipped with a user-friendly control interface, the Lochinvar 402 - 2072 allows for easy monitoring and adjustment of settings. Its advanced digital display provides real-time data on system performance, ensuring the operator can maintain optimal performance and efficiency.

Another noteworthy feature is the unit's quiet operation. The design includes sound-dampening insulation and high-efficiency circulators, keeping noise to a minimum, which is an essential trait for both residential and commercial settings.

The Lochinvar 402 - 2072 is also designed with safety in mind. It incorporates multiple safety features including an automated vent damper, low water cutoff, and a comprehensive control system that monitors various operating conditions. This proactive approach to safety ensures that potential issues are identified and addressed before they become critical.

In conclusion, the Lochinvar 402 - 2072 boiler presents an exceptional combination of efficiency, durability, and user-friendly features. Its advanced condensing technology, stainless steel construction, and focus on safety make it a leading choice in the competitive boiler market, catering to the heating needs of a diverse range of applications while ensuring environmental responsibility. For those in search of a dependable and efficient heating solution, the Lochinvar 402 - 2072 is certainly worth considering.
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