Lochinvar 151 - 801 service manual Maintenance Maintenance and annual startup, Service technician

Page 19

Service Manual

2Maintenance

Maintenance and annual startup

Table 2A Service and Maintenance Schedules

Service technician

(see the following pages for instructions)

 

General:

 

 

 

 

 

• Address reported problems

 

 

• Inspect interior; clean and vacuum if

 

necessary;

 

 

 

 

• Clean condensate trap and fill with fresh

 

water

 

 

 

 

 

• Check

for

leaks

(water, gas,

flue,

 

condensate)

 

 

 

 

• Verify flue and air lines in good condition

UP

and sealed tight

 

 

• Check

system water pressure/system

START-

piping/expansion tank

 

 

 

 

• Check control settings

 

ANNUAL

• Check ignition and flame sense electrodes

(sand

off

any

deposits;

clean

 

 

and reposition)

 

 

 

• Check wiring and connections

 

 

• Perform

start-up

checkout

and

 

performance verification per Section 10

 

in the Armor Installation and Operation

 

Manual.

 

 

 

 

 

• Flame inspection (stable, uniform)

 

 

• Flame signal (at least 10 microamps at

 

high fire)

 

 

 

 

• Clean

the

heat

exchanger if

flue

 

temperature is more than 54°F above

 

return water temperature.

 

 

• Check Delta T (Temperature Rise)

 

If combustion or performance indicate need:

•Clean heat exchanger

•Remove and clean burner using compressed air only

•Clean the blower wheel

Owner maintenance

 

 

 

• Check water heater area

 

• Check pressure/temperature

 

gauge

 

 

 

Daily

 

 

 

 

 

 

 

 

• Check vent piping

 

 

• Check air piping

 

Monthly

• Check

air and vent

termination

 

screens

 

 

 

• Check relief valve

 

 

• Check condensate drain system

 

• Check air vents

 

 

• Check

Delta

T (Temperature

 

Rise)

 

 

 

 

 

 

 

 

Every

 

 

 

 

6 months

• Check

water

heater

piping (gas

 

and water) for leaks

 

 

• Operate relief valve

 

 

 

 

 

 

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Contents Models 151 Contents Handling ceramic fiber materials Please read before proceedingNiosh stated First Aid Troubleshooting What is in this manual?Service MaintenanceArmor water heater display ServiceControl inputs Smart System Control BoardControl outputs Smart System Control BoardSequence of operation Access modesGeneral Operation How the water heater operatesOperation Display Button Screen Operation Display Status Display panel menu accessDisplay panel parameter access General Parameter tableModes Viewable and changeable control parameters Anti-Cycling DHW SettingsData Logging FunctionsControl modes Circulation pumps Minimum On/Off TimeService Notification Service technician Maintenance Maintenance and annual startupOwner maintenance Maintenance Check water heater relief valve Flue vent system and air pipingCheck water system Check expansion tankPerform start-up and checks Check ignition ground wiringCheck all water heater wiring Check control settingsOiled bearing circulators Check flame signalCleaning heat exchanger Review with ownerCheck the following TroubleshootingBefore troubleshooting Check control module fusesUnit Does Not No DisplayNo Burner OperationResistance Temperature Checking temperature sensorsTemperature F Resistance Ω Wire Color R/BK and Y Wire Color G and YOpening NoisyNo Pump Relief ValveFlow Switch Fault Description Corrective ActionFlame Fail Ign Anti-cyclingRunning No FlameHigh Limit Auto ResetManual Reset Flame SequenceFail Fan LowFan Speed Low GV/RelayDelta T High Sensor ShortedLouver Proving Flue Temp HighOutlet Temp High Service BlkRem Ctrl Flt Low 24 VAC Watch Dog ErrorNo Error Stored Fatal ErrorGas Supply Pressure Combustion Analysis ProcedureGas Valve Adjustment Or ObstructionModels 151 Gas valve adjustment procedureModel Models 601 4Gas Valve Adjustment Model

151 - 801 specifications

Lochinvar 151 - 801 is a high-efficiency commercial water heater designed to meet the demanding needs of various applications in the hospitality, healthcare, and educational sectors. This advanced system provides reliable hot water with enhanced performance while promoting energy conservation and sustainability.

One of the standout features of the Lochinvar 151 - 801 is its powerful heating capability. With a robust heating input of up to 150,000 BTU per hour, it ensures a steady supply of hot water even during peak demand times. The efficient heat exchanger design optimizes thermal performance, allowing for quicker recovery rates, which is essential for facilities requiring substantial hot water usage.

This model integrates cutting-edge technologies to maximize energy efficiency. Utilized in the Lochinvar 151 - 801 is the Smart System control technology, which provides precise temperature management and diagnostics. This feature not only enhances operation efficiency but simplifies service and maintenance by providing real-time data and alerts, leading to reduced downtime.

Additionally, the Lochinvar 151 - 801 employs a stainless-steel tank construction that promotes durability and robustness. The tank is adequately insulated to minimize heat loss, thus keeping energy costs down. Its compact design also allows for easy installation in various spaces, including those with limited footprints.

Moreover, the unit features advanced combustion technology, including a modulating gas valve that adjusts the flame size according to demand, promoting even greater efficiency. This ensures that the water heater operates at optimum performance levels, reducing fuel consumption while ensuring a consistent supply of hot water.

Safety is a primary concern for Lochinvar, and the 151 - 801 model includes several integrated safety features, such as an ignition safety shutoff and a temperature/pressure relief valve. These systems work together to provide peace of mind while ensuring the unit operates safely within its designated parameters.

In conclusion, the Lochinvar 151 - 801 is an exemplary choice for commercial applications, offering powerful performance, efficient technologies, durable construction, and enhanced safety features. With its combination of high output and advanced monitoring capabilities, it stands as a reliable solution for organizations seeking an effective hot water heating solution.
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