Tube Assembly and Mounting. Brant Radiant Heaters HLV-170, HLV-80, HLV-50, HLV-90, HLV-140, HLV-60, HLV-100, HLV-175, HLV-75, HLV-180

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Tube Assembly and Mounting. Brant Radiant Heaters HLV-170, HLV-80, HLV-50, HLV-90, HLV-140, HLV-60, HLV-100, HLV-175, HLV-75, HLV-180 | Manualzz



System Start-Up and Damper Adjustment

HLV Series

System Start-Up Prechecks

• Confirm all gas piping, electrical wiring, etc. are properly installed.

• Preset the primary and secondary damper(s) to half-open.

• If applicable, unassisted combustion air ducts must be installed before start-up.

• If applicable, fan assisted outside combustion air ducts must not be connected to burner control box

upon initial start-up.

Damper Adjustment


The system must run for 20 minutes in

high fire mode before setting the dampers. Confirm all operational indicator lights (located on the burner control box) are on.


All system dampers are preset to half-open. If a burner fails to stay lit or does not light, the damper serving that burner must be adjusted until the burner is continually lit throughout the initial 20 minute start-up.


Using a manometer with an adequate range, measure the vacuum pressure (Figure 4.2) at the burner furthest from the vacuum pump. Adjust the primary damper at the pump until the manometer reaches the specified reading shown in Chart 4.2.

NOTE: If proper box static pressure cannot be achieved, it may be necessary to remove one, two or all three baffle sections (P. 27). Consult factory following basic troubleshooting (i.e. proper pump rotation, check for blockages, baffle installed correctly, control box covers are secured, etc.).

Figure 4.2 • Burner Control Box Vacuum Port

NOTE: Remove the plug on vacuum port to measure box pressure. Ensure burner box lid is tightened securely.

Vacuum Port


If secondary dampers are installed in the system, connect manometer to each applicable burner and set applicable secondary damper to the specified reading (Chart 4.2).


Once each damper has been adjusted, burner pressures must be checked to confirm initial setpoints did not change. Readjust dampers as necessary in the same order. Lock dampers in place.


If fan assisted outside air ducts are used, connect to control box after initial start-up is complete;

Adjust supply dampers (supplied with powered air inlet P/N: V-PAI - sold separately) until the required pressures are achieved.

Chart 4.2 • Burner Box Pressure Setpoints

Burner Box Input (BTU/H) Box Pressure (inches W.C.)

40,000 to 60,000 -0.51 +/- .01

75,000 to 110,000 -0.19 +/- .01

120,000 to 180,000


-0.22 +/- .01

-0.19 +/- .01

The system must operate in high fire for 20 minutes before adjusting the dampers.

Each system damper must be adjusted to the box pressure setpoints listed above.

44 45

HLV Series


Maintenance •

Routine Inspection





Personal injury or death may result if maintenance is not performed by properly trained gas installer or service personnel. Contact the installing distributor or place of purchase for service. Do not operate heating system if repairs are necessary.

Allow heater to cool prior to servicing.

Disconnect power to heater before servicing.

Use protective glasses when maintaining the heater.

Routine Inspection:

At least once per year, the heating system should be inspected and serviced by trained gas installation and service personnel only. This inspection should be performed at the beginning of the heating season to insure that all heater components are in proper working order and that the heating system operates at peak performance. Particular attention should be paid to the following items.

• Vent pipe system: Check the outside termination and the connections at the heater. Inspect the vent exhausts for leakage, damage, fatigue, corrosion and obstructions. If dirt becomes a problem, installation of outside air intake ducts for combustion is recommended.

• Combustion air intake system (when applicable): Check for blockage and/or leakage. Check the outside termination and the connection at the heater.

• Heat exchangers: Check the integrity of the heat exchangers and tailpipe. Replace if there are signs of structural failure. Check for corrosion and/or buildup within the tube exchanger passageways.

• Burner: Check for proper ignition, burner flame and flame sense. Flame should extend directly outward from burner without floating or lifting.

• Exhauster: Inspect the exhauster system for abnormal noise and/or vibrations. Consult factory for troubleshooting.

• Wiring: Check electrical connections for tightness and/or corrosion. Check wires for damage.

• Gas Connection: Inspect the integrity of the gas connection to the heater. Check for leaks, damage, fatigue or corrosion. Do not operate if repairs are necessary and turn off gas supply to the heater.

Contact service personnel.

Reflectors: To maintain effective infrared heating, always keep both sides of the reflector clean.

Maintenance can vary significantly depending on the environment. Dirt and dust can be vacuumed or wiped with a soap and water solution. Use metal polish if the reflectors are severely dirty.

Contact service personnel if repairs are necessary. Do not operate unit.



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