Trane CAB-PRC001-EN manual Controls Options, End Device Options

End Device

Controls Options

Control Valve

Two-Position Fresh Air Damper Actuator

End Device Options

All end device options are factory- installed and tested.

Two-Position Control Valves

Model Number Digits 27 and 28 = A - H Two-position valve options are available with either Tracer ZN.010, ZN.510, or ZN.520. Valves are spring-return type, sweat connections, and available as normally open or closed. The valves respond to a 24V signal and have 1/2-inch sweat connections. The two-way valve option will either fully open or close. The three-way valve option allows either full water flow through the coil or diverts waterflow through the bypass. If the control valve loses power, the valve returns to its de-energized position. All control valve options are factory installed in the leaving water piping downstream of the hydronic coil. The valve actuator is easily removable for service without removing the valve body from piping.

Modulating Control Valves (ZN.520) Model Number Digits 27 and 28 = J - R

These 1/2-inch sweat connect valves are three-wire floating point valves, equal percentage type. Modulating valves are available in four Cv sizes: 0.7, 1.5, 2.5, and

4.0.The valve responds to a 24V triac signal from the controller, which deter- mines the valve position by a control algorithm. If the valve loses power, it remains in the position that it was in

when the power loss occurred. All control valves are factory installed in the leaving water piping downstream of the hydronic coil.

Field-Supplied Valves

Model Number Digits 27 and 28 = X or Y When using field-supplied valves, this option allows the controller to be factory- configured for the normal position of the field-supplied valve.

Note: The Trane Company does not recommend wild coil applications.

Two-Position Fresh Air Damper Actuator Model Number Digit 13 = D, E, or F (Available with all control options except ZN.520)

This damper actuator uses a 24V signal and is factory-wired and mounted to the damper assembly. It allows zero to 50% fresh air. The damper will drive open to an adjustable mechanical stop-position whenever the fan is running during occupied mode and will spring-return closed when the fan turns off.

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