•FILTER OPTIONS - Standard units are shipped with 2” throw-away filters installed. 2” pleated and 4” pleated filters are offered as a factory installed option.
•CONVENIENCE OUTLET - This 110 volt outlet can be “powered” by the unit with a stepdown transformer or you may order the unit with a “non-powered” convenience outlet that can be wired in the field.
•DISCONNECT SWITCH - For gas heat units and cooling units with electric heat, a HACR breaker sized to the unit is provided. For cooling only units, a switch sized to the largest electric heat available for the particular unit is provided. Factory installed option only.
•DOUBLE WALL CONSTRUCTION - Optional double wall construction is available to provide smooth inner surfaces for easy and effective cleaning to reduce risk of dirt and bacterial accumulation. Fiberglass insulation is sandwiched between heavy gauge steel sheets to form a durable, rigid casing to withstand higher working pressures and impact forces. The heavy-duty construction provides excellent acoustic and thermal insulation and eliminates erosion of insulation material and contamination of the air stream.
•BAS - Building Automation System Controls (available on two-system cooling product only).
Simplicity® INTELLI-Comfort™ CONTROL - The York® Simplicity® INTELLI-Comfort™ control is factory installed. It includes a supply air sensor, a return air sensor, and an out- side air sensor. There are provisions for a field installed dirty filter indicator switch, an air-proving switch, an Outside Air Humidity sensor, a Return Air Humidity sensor, an Inside IAQ sensor, and an Outside Air IAQ sensor. Construction mode operation, 365-day real time clock with 7 day programming plus holiday scheduling is built-in. Two different modes of demand ventilation are achieved through the INTELLI-Com- fort™ using CO2 sensors. It uses an inside CO2 sensor to perform Demand Ventilation. It can also use an Outside CO2 sensor to perform Differential Demand Ventilation. It uses a Patented Comfort Ventilation algorithm to provide comfort- able ventilation air temperature. The patented economizer- loading algorithm will protect the equipment when harsh operating conditions exist. Humidity in the occupied space or return duct can be monitored and controlled via humidity sensors and the on-board connection for hot gas re-heat system. It uses the INTELLI-Start™ algorithm to maximize energy savings by recovering the building from the Unoccu- pied Setpoints to the Occupied Setpoints just in time for the Occupied Time Period to begin. The Simplicity® INTELLI- Comfort™ balances space temperature, ventilation air tem- perature, CO2 and humidity for ultimate comfort. Simplicity® INTELLI-Comfort™ with ModLINC CON- TROL - The York® Simplicity® INTELLI-Comfort™ with ModLINC control is factory installed. It includes all the fea- tures of the INTELLI-Comfort™ control with an additional control to translate communications from MODBUS to the BACnet MSTP protocol.
Novar® BAS CONTROL - The Novar® ETC-3 building automation system controller is factory installed. Includes
supply air sensor, return air sensor, dirty filter indicator switch, and air proving switch.
JOHNSON CONTROLS BAS CONTROL - The Johnson Control YK-UNT-1126 building automation system control- ler is factory installed. Includes supply air sensor, return air sensor, dirty filter indicator switch, and air proving switch.
CPC BAS CONTROL - The Computer Process Controls Model 810-3060 ARTC Advanced Rooftop building auto- mation system controller is factory installed. Includes sup- ply air sensor, return air sensor, dirty filter indicator switch and air proving switch.
HONEYWELL BAS CONTROL - The Honeywell W7750C building automation system controller is factory installed. Includes air supply sensor, return air sensor, dirty filter indicator switch, and air proving switch.
•COIL GUARD - Customers can purchase a coil guard kit to protect the condenser coil from damage. This is not a hail guard kit.
•SMOKE DETECTORS - (supply air & return air) The smoke detectors stop operation of the unit by interrupting power to the control board if smoke is detected within the air compartment.
Factory installed smoke detectors in the return air, may be subjected to freezing temperatures during “off” times due to out side air infiltration. these smoke detectors have an operational limit of 32°F to 131°F. smoke detectors installed in areas that could be out side those limitations will have to be moved to prevent having false alarms.
•STAINLESS STEEL HEAT EXCHANGER - For applications in corrosive environments, this option provides a full stainless steel heat exchanger assembly.
•STAINLESS STEEL DRAIN PAN - An optional rust-proof stainless steel drain pan is available to provide years of trouble-free operation in corrosive environments.
•PHASE MONITORS - Designed to prevent unit damage. The phase monitor will shut the unit down in an out-of- phase condition.
•HIGH STATIC DRIVE - May include a belt, blower pulley, motor pulley or a motor change to enhance blower performance.
•LOW STATIC DRIVE - May include a belt, blower pulley, motor pulley or a motor change when standard airflow is not required. (WR300 & WR240 only)
•DIRTY FILTER SWITCH - This kit includes a differential pressure switch that energizes the fault light on the unit thermostat, indicating that there is an abnormally high pressure drop across the filters. Factory installed option or field installed accessory.
•HINGED FILTER DOOR/”TOOL FREE” BLOWER AND ACCESS PANELS (not hinged) - This option allows for easy access and maintenance.