Lynxspring ONYXX LX BZ424-LX User Manual

[MSV-25] is configured for Constant, the VAV will change from heating to cooling mode,
When the ChangeOver Switching Type [MSV-25] is configured for None, the VAV will remain in cooling mode [MSV-26]. [MSV-26] is writable from BACnet to change mode
externally at priority 9 or higher.
Sequence of Operation
Standby Cooling control
When a motion sensor is c
onfigured on an AI or a TZ200 room sensor is used with a PIR sensor, and motion is not sensed in the space for 60 min (cfg) Cooling will be
maintaining the
Cooling Setpoint
plus the standby cooling offset.
Standby Heating control
When a motion sensor is configured on an AI or a TZ200 room sensor is used with a PIR sensor, and motion is not sensed in the space for 60 min (cfg) Heating will be
maintaining the
Heating Setpoint
minus the standby heating offset.
Changeover Mode
*Requires Upstream T° sensor
When the Upstream T° sensor is installed, and the
ChangeOver Switching Type
Regardless of room temp vs. s
etpoint, when the supply air from the primary unit is less than 75.2 °F (cfg).
When the Upstream T° sensor is installed, and the
ChangeOver Switching Type
[MSV-25] is set to RoomT°+Offset, the VAV will change from heating to cooling mode,
regardless of room temp vs. setpoint; when the supply air from the unit is less than Room, the VAV will change from heating to cooling mode, regardless of room temp vs.
setpoint, when the supply air from the unit is less than RoomT°+ Offset value 1°F (cfg).
Demand Limiting
Heating outputs can be limited to reduce energy consumption during peak times. The
Aux Output A-E Authorization
can be set to
MaxPower
or Fan+MaxPower.
When placed in this mode, the outputs will be allowed to modulate or cycle from 0-100% (100%). A network variable can modify this setpoint.
Fan Status
The fan status of the primary unit can be used as proof of airflow as status or to prevent outputs from operating when no airflow is detected. Set
Aux Output A-E Authorization Fan Status
or Fan+MaxPwr.
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Lynxspring ONYXX LX BZ424-LX Specifications

Power

power supply voltage	24 VAC/VDC ± 15%
current consumption	5 VA
maximum current consumption	48 VA
voltage range	0 - 10 Vdc
current range	0 - 20 mA

Mechanical

dimensions	4.9” x 8.5” x 2.5”
dimensions (metric)	123 mm X 215 mm X 63 mm
weight	744 g / 1.5 lb
noise level	35 dB(A)
shaft diameter	1/4” to 5/8” [6mm to 16mm]

Operating Environment

stocking temperature range	-30 °C to 50 °C / -22 °F to 122 °F
operating temperature range	-25 °C to 45 °C / -13 °F to 113 °F
operating humidity range	10% to 90% H.R. without condensation

Internal Components

microprocessor	STM32 (ARM CortexTM M3) 32 bits
cpu speed	72MHz
memory	768 KB non-volatile Flash
ram	96 KB RAM