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Figure 1

INSTALLATION

LACEMENT OF THE CAS UNIT

The motorized CAS unit should be located on a flat horizontal surface near the

combustion air intake of the appliance. Two mounting brackets are provided for

securing the unit against a solid structure, such as a wall, column, or the side of the

appliance itself. Use the included screws to attach the brackets to the CAS housing

as shown in Figure 1. Secure the brackets to a solid structure with appropriate

fasteners. It is not required to use the brackets as long as the unit is located so that it

may not be bumped, moved, or tipped over.

NTAKE AIR STARKAP LOCATION

The StarKap should be located on an outside wall or roof

maintaining clearances to other intake and exhaust vents

in accordance with the National Fuel Gas Code, ANSI

Z223.1, manufacturer's recommendations and/ors local

codes which are applicable. The StarKap should be

located at least 10 feet from a building exhaust outlet,

equipment vent, or chimney termination.

Figure 2

NSTALLATION OF INTAKE AIR STARKAP

After determining the location of the StarKap, cut an

appropriately sized hole in the wall or roof, taking

precautions to avoid interference with wiring or other

plumbing in the structure to be cut. Pre-attach a short

length of duct to the StarKap if necessary. Insert the

StarKap and secure with appropriate fasteners. Flash in

the opening in accordance with local building codes.

NSTALLATION OF DUCT

Refer to Diagram A or B to determine what size pipe is

needed. Connect the duct pipe from the top of the CAS

unit to the StarKap. If using pipe of different diameter than

the CAS component connections, attach increaser/reducer

fittings as close to the CAS unit and to the StarKap as

possible. The duct should be supported with appropriate

mounting straps from floor joists, walls, or other solid

structures. The straps should be placed so as to keep the

duct work out of passageways (See Figure 2). For best

performance, install elbows or tees no closer than 3 pipe

diameters from the inlet of the CAS unit.

Figure 3

WIRING

Wire the CAS unit in accordance with the National Electric

Code and applicable local codes. UNIT MUST BE

GROUNDED. Check the ground circuit to make certain

that the unit has been properly grounded. The wiring

should be protected by an over-current circuit device rated

at 20 amperes. CAUTION must be taken to ensure that

the wiring does not come in contact with any heat source.

All line voltage and control circuits between the CAS unit

and the appliance MUST be wired in accordance with the

National Electrical Code for Class I wiring or higher,

according to the installation environment.

1. Remove the wiring access cover to access the wiring

terminals.

2. Select the appropriate control relay for the appliance control system voltage from the two relays supplied with the

CAS system (see illustration) Use the 24VAC relay for a 24V control system (typical gas-fired), or the 120VAC relay

for a 120V control system (typical oil-fired). Install the selected relay into the socket provided on the wiring panel, and

secure with the wire retaining clip.

3. Use the enclosed conduit connectors or like connectors to route the appropriate wires through the CAS housing. The

incoming ground wire must be attached to the green grounding screw located near the wire terminals. The following

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