York sunline 2000 Installation Manual

Also see for Sunline 2000: Installation instruction Installation instructions Installation instructions Technical guide Technical guide

Contents

York sunline 2000 Installation Manual Manual pdf 12 page image

362242-YIM-B-010912 Johnson Controls Unitary ProductsPOWER EXHAUST DAMPER SETPOINT (WITH OR WITH-OUT POWER EXHAUST)• With no power exhaust option, adjust the ExhaustAir Adjustment Screw fully clockwise.• With power exhaust option, each building pressur-ization requirement will be different. The point atwhich the power exhaust comes on is determinedby the economizer damper position (PercentOpen). The Exhaust Air Adjustment Screw shouldbe set at the Percent Open of the economizerdamper at which the power exhaust is needed. Itcan be set from 0 to 100% damper open.INDOOR AIR QUALITYIndoor air quality (indoor sensor input): Terminal AQaccepts a +2 to +10 Vdc signal with respect to the(AQ1) terminal. When the signal is below it's setpoint,the actuator is allowed to modulate normally in accor-dance with the enthalpy and mixed air sensor inputs.When the AQ signal exceeds it's setpoint setting andthere is no call for free cooling, the actuator is propor-tionately modulated from the 2 to 10 Vdc signal, with 2Vdc corresponding to full closed and 10 Vdc corre-sponding to full open. When there is no call for freecooling, the damper position is limited by the IAQ Maxdamper position setting. When the signal exceeds it'ssetpoint (Demand Control Ventilation Setpoint) settingand there is a call for free cooling, the actuator modu-lates from the minimum position to the full open posi-tion based on the highest call from either the mixed airsensor input or the AQ voltage input.• Optional CO 2 Space Sensor Kit Part #2AQ04700324• Optional CO2 Unit Sensor Kit Part # 2AQ04700424Replace the economizer access panel.