Installation Instructions BGA158
Issue Date August 24, 2011
BGA158 Series CE Approved Class A
Shutoff Gas Valve
Applications
The BGA158 Series shutoff gas valve is an electrically
operated gas 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 BGA158 can
be used with natural gas and LP gas at pressures up
to 2 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
BGA158. 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 BGA158.
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.
1. To install the BGA158 valve:
2. Shut off power to the appliance.
3. Shut off the gas at the main manual shutoff valve.
4. Label each wire with the correct terminal
designation prior to disconnection.
5. 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.
6. 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 BGA158
may be damaged in the mounting process if a wrench
is used on any other surface. Using a wrench
incorrectly may void the warranty.
7. The BGA158 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.
90° Maximum
from Vertical
Limited Horizontal and Vertica l
Vertica l mounti ng may be
360º aroun d its axis
with the gas flow either
up or do wn.
90° Maximum
from Vertical
Figure 1: BGA158 Valve Mounting Positions
8. 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 engageing thread.
If pipe dope lodges on the valve seat, it will
prevent proper closure. Remove excess
compound after mounting the valve to the
pipework.
!
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.
9. 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
BGA158 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.
10. Make wiring connections. Refer to the Wiring
section for specific wiring instructions.
11. Perform the Checkout section before leaving the
installation.
2 BGA158 SeriesCE Approved Class A Shutoff Gas Valve Installation Instructions
Wiring
!
WARNING:Risk of Shock.
Disconnect the power supply before making
electrical connections to avoid electrical shock or
equipment damage. Ensure that the operating
voltage is identical to the information on the product
identification label.
!
CAUTION:Risk of Equipment Damage.
For 12 VDC, 25 VDC and 25 VAC applications, the
ground wire must not be connected to prevent
possible grounding of the 12 VDC or 25 VDC power
supply or 25 VAC transformer secondary.
The BGA158 valve is supplied with 3-tab and 2-tab
electrical connections. The tabs of the solenoid coil are
male tag terminals, and electrical connections should
be made using 1/4 in. (6.35 x 0.8 mm) female, fully
insulated push-on terminals. The earth ground terminal
is clearly labeled with the earth ground symbol (see
Figure 2).
Setup and Adjustments
Checkout
IMPORTANT: All adjustments must be made
in conjunction with the gas appliance and in
accordance with the appliance manufacturer’s
instructions. Only authorized personnel should make
adjustments.
!
WARNING:Risk of Explosion or Fire.
Follow this or an equivalent checkout procedure
after installation. Before leaving the installation,
verify that the gas valve functions properly and that
the system has no gas leaks. Gas leaks can lead to
an explosion or fire, and may result in severe
personal injury or death.
Make sure all components are functioning properly by
performing the following test.
1. Test all joints and connections for leaks with a rich
soap and water solution. If leaks occur, see Step 8
in the Installation section.
Note: Electrical connections can also be made using
pre-wired electrical plugs (DIN 43650 [ISO 4400]).
2. Close the main manual shutoff valve and wait at
least 5 minutes for unburned gas to escape from
the appliance, and then reopen the shutoff valve.
3. Turn on the main electrical power switch and close
the thermostat contacts. The appliance should
operate in accordance with the manufacturer’s
specified sequence of operation.
4. Turn the thermostat to a low dial setting to open
the contacts. All burner flames should be
extinguished. Repeat Steps 3 and 4 in this section
at least three times.
5. Return the thermostat to a normal setting before
leaving the installation.
BGA158 Series CE Approved Class A Shutoff Gas Valve Installation Instructions 3
Non-Polarity Sensitive
Connections
1
L1 (Hot)
L2 (Neu)
Limit(s)
1
Power supply provid e disconnect
means and overload pr otection
as required.
Figure 2: 3-Tab Electrical Connections
X
indicates possible
locations f or other controls.
BGA158
Gas Valve
X
Burner
25 VDC, 25 V, 120V and 240V Only
Ground Tab
24 Volt
Thermostat
Safety
Control
Gas Flow
Shutoff Valve
Direction
of Flow
X
76.2 mm (3 in.)
Minimum
Sediment
Trap
Figure 3: Typical BGA158 Installation
4 BGA158 SeriesCE Approved Class A Shutoff Gas Valve Installation Instructions
12 VDC; 2-tab 15 VA Coil
25 VAC; 50/60 Hz; 3-tab 15 VA Coil
25 VDC; 3-tab 17 VA Coil
120 VAC; 50/60 Hz; 3-tab 15 VA Coil
240 VAC; 50/60 Hz; 3-tab 15 VA Coil
!
WARNING: Risk of Explosion, Fire, or
Electric Shock. Label all wires before they are
disconnected when replacing or servicing the
BGA158. 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.
!
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 BGA158.
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.
Field repairs must not be made to the BGA158 valve.
Any attempt to repair this assembly voids the
manufacturer’s warranty. For a replacement valve,
contact the original equipment manufacturer or the
nearest BASO Gas Products distributor.
BGA158 Series CE Approved Class A Shutoff Gas Valve Installation Instructions 5
Technical Data
Product BGA158 Series CE Approved Class A Shutoff Gas Valve
Types of Gas 2nd (Natural Gas) or 3rd (LP Gas) Family Gases
Permissible Ambient
(Surface) Temperature
Electrical Ratings 25 VAC, 50/60 Hz, 0.595A,
Maximum Operating
Pressure
Reverse Pressure Ratings 150 mbar (15 kPa) (60 in. W.C.); Class A (EN 161)
Inlet Pipe Size 1/8, 1/4, 3/8, or 1/2 NPT, 1/8, 1/4, 3/8, or 1/2 BSPP (Thread ISO 7-Rp)
Outlet Pipe Size 1/8, 1/4, 3/8, or 1/2 NPT, 1/8, 1/4, 3/8, or 1/2 BSPP (Thread ISO 7-Rp)
Valve Torsion Group Group 2 (EN 161)
Pressure Connection 1/8 NPT left, right, left and right, left and bottom, right and bottom, or bottom
Dirt Strainer 0.9 mm (0.036”) Mesh
Operating Time Rating 100% Continuous
Valve Timings Closing Time
Power Ratings 15 VA per Coil (except 25 VDC, 17 VA)
Electrical Connections 3-Tab Solenoid Coil
Coil Insulation Class Class F
Packaging Bulk pack supplied to original equipment manufacturer (individual pack option al).
Bulk Pack Quantity 80 per carton
Bulk Pack Weight 36 kg (79 lb) per carton
Agency Listings CSA (AGA/CGA) Certificate Number 229521-1656058
Specification Standards EN 161
Performance specifications are nominal and conform to acceptable industry standards. All agency certification of BASO products is performed
under dry and controlled indoor environmental conditions. Use of BASO products beyond these conditions is not recommended and may void
the warranty. Product must be protected if exposed to water (dripping, spraying, rain, etc.) or other harsh environments. The original
equipment manufacturer or end user is responsible for the correct application of BASO products. Consult BASO Gas Products LLC for
questionable applications. BASO Gas Products LLC shall not be liable for damages or product malfunctions resulting from misapplication or
misuse of its products.
Refer to the BGA158 Series CE Approved Class A Shutoff Gas Valve Product Bulletin (BASO-PB-BGA158) for necessary information on
operating and performance specifications of this product.