Introduction
The dual line regulator 4000 Series Medical Gas Manifold has been cleaned, tested and prepared at the factory for the
specific gas indicated. The unit complies with the National Fire Protection Association (NFPA) standard 99 “Health
Care Facilities”. All critical connections are gas specific and are designed to eliminate supply gas errors.
This manual is supplied to give the health care facility personnel installation, operation and maintenance instructions.
Keep this manual with the manifold for convenient reference.
The dual line regulator/single vent 4000 Series Medical Gas Manifold will need right and left header bars and pigtails
that must be ordered separately. The installed system will automatically switch to the reserve bank when the primary
bank is depleted. When the depleted cylinders are replaced with full ones the system will automatically reset itself in
preparation for the next bank change. The primary side is the bank in use and the reserve side is the bank on
“Reserve”. This designation will automatically change from left to right and right to left as each bank is depleted and, in
turn, refitted with full gas cylinders.
The empty LED indicator will show a depleted bank by turning red. When the system is reset, by replacing the depleted
cylinders, the indicator will turn yellow. If the manifold is connected to the health care facility’s central alarm system that
will also indicate that the bank was depleted and, in turn, reset.
The only manual activity the 4000 Series Medical Gas Manifold requires is the changing of the depleted cylinders.
The 4000 Series Manifold is available in five standard models, each specifically designed for its gas service. The gas
standard services offered are: oxygen, nitrogen, nitrous oxide, medical air and carbon dioxide.
Manifolds may be obtained in these gas services as standard units. The manifold unit and header bar sections can be
ordered complete by calling your Allied Sales Representative. Header bar sections can also be obtained by ordering the
number and type needed to complete the manifold from the list on Page 15. NFPA requires at least the number of
cylinders for an average twenty-four (24) hour day’s supply per bank, with a minimum of two cylinders per bank.
There are two methods of mounting the 4000 Series Manifold; either floor or wall (standard) systems. With the wall
type, the manifold is attached to a wall bracket and cylinders stand next to the wall. The floor type may stand free, in
the center of a room, with the manifold supported on a stand. The customer is responsible for design and
manufacturing of the floor type stand.
Three pressure gauges on the front of the control cabinet indicate left bank, right bank and line pressures.
Primary pressure regulator heaters are included on nitrous oxide and carbon dioxide 4000 Series Manifolds.Regulator
frosting may cause pressure fluctuations.
REGULATORS MAY FREEZE UP IF THEY ARE USED AT HIGH FLOW RATES OR IN LOW
TEMPERATURES WITHOUT A HEATER.
Definitions
Is intended to indicate a requirement as stipulated by a standard or code.
Is intended to indicate a recommendation or a suggestion or an item of advice, but not required.
Is intended to indicate additional information that will be helpful.
Is intended to indicate that there is a slight chance of bodily injury or property damage. There is also the possibility
of a manifold shutdown if the “Caution” is not heeded. This will be highlighted by an outline box.
Is intended to indicate that there is a moderate chance of bodily injury, death or property damage. This will be
highlighted by an outline box.
1
