Damper Application. 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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Damper Application. Brant Radiant Heaters HLV-170, HLV-80, HLV-50, HLV-90, HLV-140, HLV-60, HLV-100, HLV-175, HLV-75, HLV-180 | Manualzz

3.0

Installation • Gas Supply

HLV Series

!

WARNING

An approved connector, suitable for the environment of equipment usage, is required.

Visible or excessive swaying, flexing and vibration of the gas connections must be avoided to prevent failure. In no case shall the gas or electrical supply support the weight of the heater.

IMPORTANT! The heating system will expand and contract during operation. Allowances for

expansion must be made between the connection to the heater and the gas supply. Excessive bending, kinks, twists or vibration must be avoided. A flexible gas connection of approved type is required. A type 1 rubber gas connectors installed in one plane, and without sharp bends, kinks or twists.

The gas pipe and connection

must be supported independently. Do not install gas supply line in a manner that bears the weight of the heater. Connect the main gas supply line with an approved flexible connector

(Figures 3.26-3.27) or, if national or local codes require rigid piping, a swing joint. Heater shall not be connected to the building piping system with rigid pipe or semi-rigid metallic tubing, including copper.

When using such material, an intermediate connection device that allows for heater expansion must be used.

The gas outlet must be in the same room as the appliance and accessible. It may not be concealed within or run through any wall, floor or partition. When installing the heater in a corrosive environment (or near corrosive substances), use a gas connector suitable for the environment. Do not use the gas piping system to electrically ground the heater.

1

Install a sediment trap / drip leg if condensation may occur at any point of the gas supply line or as required. This decreases the possibility of loose scale or dirt in the supply line entering the heater’s control system and causing a malfunction.

NOTE: High pressure gas above 14 Inches W.C.. (water column pressure) requires a high pressure regulator and ball valve.

2

Form the Type 1 rubber gas hose into a smooth U-shape allowing a maximum of 14 in. between the flexible connector’s end nuts (Figures 3.26-3.27).

3

Attach the ball valve to the gas supply pipe. Apply pipe compound to NPT adapter threads to seal the joint. Use only a pipe compound resistant to LP.

NOTE: Provide a 1/8 in. NPT plugged tapping accessible for test gauge connection immediately upstream of gas connection to the heater (provided on ball valve).

4

Attach the flexible connector to the adapter and burner control box inlet. Seal the joints.

Note: Excessive torque on the manifold may misalign the orifice. Always use two wrenches to tighten mating pipe connections.

5

Final assembly must be tested for gas leaks according to NFPA 54 and all local codes and/or Standards.

!

WARNING

Testing for gas leaks with an open flame or other sources of ignition may lead to a fire or explosion and cause serious injury or death. Test in accordance with relevant codes of practice.

40 41

HLV Series

Figure 3.26

• Flexible Gas Connection • Side View

Ball Valve / Inlet Tap

Adapter

Elbow

Elbow

Adapter

Drip Leg/

Sediment Trap

3.0

Installation

Gas Supply

Heater Movement*

Burner

Control Box

Side View

7”-14”

Type 1 Hose Gas Connector, formed into a U-bend

Figure 3.27

• Flexible Gas Connection • Rear View

Ball Valve / Inlet Tap

Burner Control Box

End View

Hose connections must be installed inline in the same direction as heater expansion

NOTE: Do not exceed 14 Inches W.C. to the appliance.

41

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