Service Manual

3Troubleshooting

Table 3D Troubleshooting Chart - Noisy System

FAULT

 

 

 

CAUSE

 

 

 

CORRECTIVE ACTION

 

 

 

 

 

 

 

 

 

- Supply gas problem. Natural gas pressures

 

 

 

 

 

 

should be

between

4

inches

w.c.

and

• Refer to Section 7 - Gas

Connections of

the Armor

 

14

inches

w.c.

LP

gas

pressures should

Water Heater Installation and Operation Manual for

 

be

between

8

inches

w.c.

and

detailed information concerning the gas supply.

 

14 inches w.c.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Refer to

the

Gas Valve

Adjustment Procedure on

 

 

 

 

 

 

 

 

 

page 33 of this manual for the proper gas valve setting.

 

- Gas/air mixture problem.

 

 

 

Verify that the vent/air intake lengths do not exceed the

 

 

 

 

 

 

 

 

 

maximum listed in the General Venting section of the

Noisy

 

 

 

 

 

 

 

 

Armor Water Heater Installation and Operation Manual.

 

 

 

 

 

 

 

 

 

 

 

 

 

Operation

 

 

 

 

 

 

 

 

• Refer to page 19 in this manual for the burner removal

 

- Dirty/damaged burner.

 

 

 

and inspection procedure.

Clean or replace the burner

 

 

 

 

 

 

 

 

 

as necessary.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Refer to Section 6 - System Piping of the Armor Water

 

- Low water flow through the heat exchanger.

Heater Installation and Operation Manual for minimum

 

 

 

 

 

 

 

 

 

flow rates.

 

 

 

 

 

 

 

 

 

 

 

- Air in the piping system.

 

 

 

• Properly purge all air from the piping system.

 

 

 

 

 

 

 

- Low system water pressure.

 

 

• Verify system pressure is a minimum of 12 PSI.

 

 

 

 

 

 

 

 

 

 

 

- Blown fuse.

 

 

 

 

 

• Replace fuse F5 on the control board, see page 21 of

 

 

 

 

 

 

this manual.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No Pump

 

 

 

 

 

 

 

 

 

- Faulty pump.

 

 

 

 

 

• Replace pump.

 

 

Operation

 

 

 

 

 

 

 

 

 

 

 

 

 

- Faulty pump relay.

 

 

 

 

• Replace pump relay.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- Internal fault on control board.

 

 

• Replace main control board.

 

 

 

 

Relief Valve

- System pressure exceeds relief valve

• Lower the system pressure below the 150 PSI rating of

Opening

setting.

 

 

 

 

 

 

the supplied relief valve.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Check the wiring connections to switch. Wires should

 

 

 

 

 

 

 

 

 

be connected to the common and normally closed

 

 

 

 

 

 

 

 

 

terminals.

 

 

 

 

 

 

 

 

 

 

 

 

• Air intake lengths exceed the maximum allowed

APS

 

 

 

 

 

 

 

 

lengths. Refer to Section 3 - General Venting of the

 

 

 

 

 

 

 

 

Armor Water Heater Installation and Operation Manual

Open

 

 

 

 

 

 

 

 

for proper lengths.

 

 

(will require a

 

 

 

 

 

 

 

 

• Check

for

obstruction

or blockage in the air

manual reset once the

 

 

 

 

 

 

 

 

intake pipes or at terminations.

 

condition has been

Air pressure switch contacts are open.

 

• Check reference hoses connected to the air pressure

corrected. Press the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

switch for blockage or obstruction.

 

RESET button on the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Inspect the burner. Reference page 19 of this manual

SMART SYSTEM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

for removal

and cleaning procedures.

Replace if

display to reset.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

necessary.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Inspect the heat exchanger. Reference page 20 of this

 

 

 

 

 

 

 

 

 

manual for removal and cleaning procedures. Replace

 

 

 

 

 

 

 

 

 

if necessary.

 

 

 

 

 

 

 

 

 

 

 

 

• Faulty air pressure switch. Replace switch.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24

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Lochinvar 150 - 500 service manual Noisy Operation, No Pump, Relief Valve, Opening
Page 23 Page 25

150 - 500 specifications

Lochinvar has established itself as a leader in the field of hydronic heating solutions, and the Lochinvar 150 - 500 series is a prime example of its commitment to innovation and efficiency. Designed primarily for commercial applications, this line of high-efficiency boilers is engineered to provide optimized performance, reliability, and cost-effectiveness.

One of the standout features of the Lochinvar 150 - 500 series is its robust construction. Built with a durable stainless-steel heat exchanger, these boilers offer superior resistance to corrosion, ensuring a longer lifespan and consistent performance over time. The advanced design of the heat exchanger also maximizes heat transfer, contributing to higher efficiency ratings.

In terms of technology, the Lochinvar 150 - 500 series incorporates the Concentric Venting System, which allows for flexible installation options and reduces the overall footprint required for the boiler setup. This system is particularly advantageous in commercial settings where space can be limited. The boilers are equipped with smart controls that provide real-time monitoring and diagnostics, allowing for easier maintenance and reducing downtime.

The series features a comprehensive modulation range, allowing the boilers to adjust their output based on the heating demand. This capability not only enhances efficiency but also lowers energy consumption, making it an eco-friendly choice for businesses seeking to reduce their environmental impact. The Lochinvar 150 - 500 boilers utilize innovative combustion technologies, including an integrated burner that ensures optimal combustion efficiency and reduced emissions.

Safety is a priority with the Lochinvar 150 - 500 series, which includes multiple safety features such as lockout protection, pressure switches, and high-temperature limit controls. These measures ensure that the unit operates safely under varying conditions, providing peace of mind for operators.

Additionally, the compact design of the Lochinvar 150 - 500 series allows for easy transportation and installation. Its lightweight structure enables it to be maneuvered through tight spaces typically found in commercial buildings, making it a versatile option for installers.

In summary, the Lochinvar 150 - 500 series is an excellent choice for anyone seeking a reliable, efficient, and technologically advanced boiler solution. With its durable construction, advanced features, and commitment to safety and efficiency, this series stands out as a trusted option in the competitive market of hydronic heating systems.
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