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carbon dioxide content. (Do not attempt to determine content by using A pressure gauge.) See instructions for removal of cylinders, page 20 before proceeding,  The tare (empty) weight and full weight are stamped on the cylinder valve body. (These weights do not include the weight of discharge heads or control heads.) If the resulting net weight has decreased from the proper gas charge by more than 10%, the cylinder must be recharged to its full rated capacity. Record the net weight of gas each cylinder on weight record on inside back cover.

ONCE EVERY TWO YEARS

Blow out all distributing piping with air or carbon dioxide to make sure that it is not stopped up. Before blowing out system, remove the dirt traps from the ends of the distributing piping to allow any foreign matter to blow clear.

If carbon dioxide is to be used for blowing out piping, disconnect the discharge heads from all cylinders not intended for use. On installations with two control heads disconnect one control head from the cylinder valve. Operate the connected control head to discharge the gas.

CAUTION: DO NOT use water or oxygen for blowing out the
                   pipe lines. The use of oxygen is especially
                   dangerous as the possible presence of even a
                   minute quantity of oil may cause an explosion.

Restore the system to normal by following instructions as outlined under "After System Has Operated."

INSTRUCTIONS FOR REMOVAL OF CYLINDERS

These instructions are to be carefully observed in the order given below when any cylinder or group of cylinders is to be removed at any time.

CAUTION: When removing charged cylinders, always disconnect
                   the discharge heads first. This will eliminate the
                   possibility of discharging the carbon dioxide with
                   possible injury to personnel.

1. Remove discharge heads from all cylinder valves by loosening mounting nuts (right-hand thread). On two or more cylinder installations swing discharge head and loop away from cylinder and allow to hang.

2. Remove all control heads from the cylinder valves. To do this, loosen  mounting nut (right-hand thread).

3. Screw large top protection cap to threads on top of cylinder valve. Cap control head outlet by screwing on side protection cap.

  4. Remove cylinder racks.

5. Remove cylinder. For 35, 50 and 75 Lb. capacity cylinders, it is recommended  that the cylinder cap be screwed on to prevent damage to cylinder valve during removal. (This cap is not included in the empty weight of the cylinder.)

RECHARGING INFORMATION

Kidde cylinders should be recharged with "bone-dry" carbon dioxide, arrangements for which can be made by calling your "Walter Kidde Sales Agency" in your telephone directory. Cylinders in the vicinity of New York can be recharged at our plant, 675 Main Street, Belleville, New Jersey.

Recharge adapter Part No. 933537 is required in the recharging of an empty or partially filled cylinder. For additional safety discs order Part No. 902048 for 10, 15, 20 and 25 lb. cylinders marked ICC-3A-1, 35 and 50 lb. capacity cylinders marked ICC-3A-2015 and Part No. 903684 for 75 lb. capacity cylinders marked 1CC-3A-2300.

WARNING : Always remove discharge head before attempting
                      to recharge cylinder.

INSTRUCTIONS FOR REINSTALLATION OF CYLINDERS

These instructions are to be carefully observed in the order given below when any cylinder or group of cylinders is to be reinstalled at any time.
1. Place fully recharged cylinder in cylinder rack before removing the cylinder cap. (See sketch for identification of parts.)

2. Install the cylinder racks and tighten  bolts only enough to allow for turning of cylinder as may be required later.

3. Remove the cylinder cap and the top protection cap from the cylinder valve. Remove the side protection caps from the cylinder valves to be equipped with control heads.

4. Turn cylinder so that the control head outlet points in the proper direction; then tighten the bolts of the cylinder racks securely.

5. Make certain all control heads have been reset as follows:

(a) Insert screwdriver in reset stem and turn clockwise until stem locks in position, with arrow on reset stem lined up with "set" arrow on nameplate. (Slight resistance will be met just before stem locks.) The plunger should fully recede into control head body.

(b) Replace locking pin and new seal wire.

NOTE:  When two control heads are connected in tandem,
               make certain both are completely reset before
               assembling to cylinder valves.

6. Reinstall control head to cylinder valve, tightening mounting nut.


7. IMPORTANT: Before mounting the discharge head on the
                             cylinder valve, examine the two "0" rings
                             in the discharge head to make certain they
                              are  intact. Do not remove.

8. Connect discharge head to cylinder valve. Tighten mounting nut securely.

AFTER SYSTEM HAS OPERATED

Open all doors, ports, ventilators, and other openings to allow for thorough ventilation.

CAUTION: DO NOT approach the hazard with an open flame
                   or a lighted cigarette as the possible presence
                   of flammable vapors may cause an explosion.

In order to renew the protection given by the Kidde system, proceed as follows:

1. Remove the Empty cylinders and have them recharged immediately. See page  20.

2. Unscrew the caps on the dirt traps located at the ends of the piping and remove any foreign matter. Replace the caps wrench tight.

3. If the system has been operated by means of a remote control pull box, work the control handle and cable back and forth several times to make certain that there is no binding. Reset control handle and replace plastic shield. Order Part No. 200863.

4. Make certain the orifices of the discharge nozzles are clear. Do not attempt to remove any nozzle throat from its bowl horn.

5. Reinstall the fully-charged cylinders.