BASO BGAH96 User Manual

Installation Instructions BGA171/H96 Issue Date August 24, 2011

BGA171/H96 Series BASOTROL®

CE Approved Class B Shutoff Gas Valve

Applications

The BGA171/H96 Series shutoff gas valve is an electrically operated shutoff valve that automatically open and close on a demand signal from a thermostat or other controlling device. Typical applications include heaters, wall furnaces, commercial cooking equipment, and similar applications. The BGA171/H96 can be used with natural gas and LP gas at pressures up to 0.5 psi. Its compact size permits installation in space restrictive applications.

WARNING: Risk of Explosion, Fire, or

Electric Shock. Label all wires before they are

disconnected when replacing or servicing the BGA171/H96. Wiring errors can cause improper or dangerous operation and may result in an explosion, fire, or electric shock leading to severe personal

injury or death.

Installation

IMPORTANT: Only qualified personnel should

install or service BASO® Gas Products. These instructions are a guide for such personnel. Carefully follow all instructions in this document and all

instructions for the appliance.

IMPORTANT: Make all gas installations in

accordance with applicable local, national, and

regional regulations.

CAUTION: Risk of Electric Shock.

Disconnect power supply before making electrical

connections to avoid electric shock.

WARNING: Risk of Explosion or Fire.

Shut off the gas supply at the main manual shutoff valve before installing or servicing the BGA171/H96. Failure to shut off the gas supply can result in the release of gas during installation or servicing, which can lead to an explosion or fire, and may result in

severe personal injury or death.

IMPORTANT: Verify that the valve is installed

only in applications where the specified maximum ambient (surface) temperature and maximum operating pressure does not exceed the limits in the

Technical Specifications section.

To install the BGA171/H96 valve:

1. Shut off power to the appliance.

2. Shut off the gas at the main manual shutoff valve.

3. Label each wire with the correct terminal designation prior to disconnection.

4. Compare the voltage on the valve with the power source voltage to ensure the correct unit is being installed. For valves with 25-volt coils, use a National Electrical Code (NEC), Class 2 transformer.

Note: The transformer must be mounted to a

grounded metal enclosure.

5. Ensure that the gas flows through the valve body in the direction indicated by the “IN” and “OUT” on the valve body. If the valve is installed with the gas flow in the opposite direction, leakage can occur.

IMPORTANT: Do not use a wrench on any

surface other than the casting flats provided at the inlet and outlet ends of the valve body. The BGA171/H96 may be damaged in the mounting process if a wrench is used on any other surface.

Using a wrench incorrectly may void the warranty.

Part No. BASO-INS-BGA171/H96, Rev. C www.baso.com

6. The BGA171/H96 valve may be mounted on a horizontal manifold with the solenoid coils pointed up (vertical) or in any position not exceeding 90° from the vertical. The valve may also be mounted on a vertical manifold in any position around its axis (see Figure 1). Do not install the solenoid coil upside down. Install vertically wherever possible.

WARNING: Risk of Explosion or Fire.

Verify that there are no gas leaks by testing with appropriate equipment. Never use a match or lighter to test for the presence of gas. Failure to test properly can lead to an explosion or fire and may

result in severe personal injury or death.

90° Maximum

from Vertical

Limited Horizontal and Vertical

PRESS

T P

OUTIN

Vertical mounting may be

360º around its axis

with the gas flow either

up or down.

90° Maximum from Vertical

Figure 1: BGA171/H96 Mounting Positions

7. Installer must be a trained, experienced, flame

safeguard control technician. Threads of the pipe and nipples must be smooth and free of tears and burrs. Steam clean all piping to remove foreign substances such as cutting oil or thread chips. A sediment trap should also be installed in accordance with the National Fuel Gas Code NFPA 54 (see Figure 3). Mount the valve to the pipework, use a quality rated pipe tape, UL listed seal material rated for gasoline, propane, and other gases. If not available, a quality grade pipe dope, a light amount on the male threads, starting two threads away from the first engaging thread. If pipe dope lodges on the valve seat, it will prevent proper closure. Remove excess compound after mounting the valve to the pipework.

8. Check for leakage:

a. Shut off the gas at the main manual shutoff

valve and open the pressure connection between the manual shutoff valve and the BGA171/H96 valve.

b. Connect air tubing with a maximum pressure

of 1-1/2 times the valve’s maximum operating pressure (as indicated on the valve) to the opened pressure connection.

c. Paint all valve body connections with a rich

soap and water solution.

If bubbles occur, this is an indication of a leak. To stop a leak, tighten joints and connections. Replace the part if the leak cannot be stopped.

If bubbles do not occur, remove the air tubing and close the pressure connection.

9. Make wiring connections. Refer to the Wiring

section for specific wiring instructions.

10. Perform the Checkout section before leaving the

installation.

2 BASOTROL CE Approved Class B Shutoff Gas Valve Installation Instructions

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