User's Manual

Installation

September 2013 4-42 P/N 81-CO2MAN-001

Figure 4-32. Tandem Pneumatic Control Head

4-4.11 Nitrogen Actuation Station

4-4.11.1 INSTALLATION OF NITROGEN CYLINDER, P/N WK-877940-000, AND MOUNTING BRACKET,

P/N WK-877845-000

1. Locate the nitrogen cylinder mounting bracket in an area where the cylinder valve

assembly and control head will be protected from inclement weather by a suitable total or

partial enclosure.

2. Install the mounting bracket clamps and hardware. Install the nitrogen cylinder in position

in a mounting bracket; tighten sufficiently to hold the cylinder in place while allowing the

cylinder enough free play to be rotated.

3. Turn the cylinder until the cylinder valve discharge outlet is in the desired position. The

nitrogen cylinder must be positioned so that control head is readily accessible during

manual operation.

4. Securely tighten the mounting bracket clamps and hardware.

5. If the cylinder is being used to drive a pressure operated siren, P/N 90-981574-001, then

the add-on label P/N 06-231866-518 (supplied with the cylinder) should be affixed over

the area at the center of the cylinder main label (bounded by a dotted line). This ensures

the cylinder function is adequately indicated.

3/16 in. X 17 in (432 mm) LONG

COPPER TUBING P/N 802366

CABLE BLOCK

3/16 in. COPPER TUBING

CONNECTION

3/16 in. TUBING TEE (SUPPLIED)

WITH TANDEM CONTROL HEAD

CABLE

3/8 in. PIPE OR

ALTERNATE

ASSEMBLY

TANDEM PNEUMATIC

CONTROL HEAD (NO VENT)

PRIMARY PNEUMATIC

CONTROL HEAD (VENTED)

CABLE HOUSING

CYLINDER CENTERS