428516-YUM-B-0908

4.Press the button for the zoning system parameter you want to change. The button label describes the current setting. When you press the button, the appropriate screen appears allowing you to change the value. Table 18 (CV/COB RTU) and Table 19 (VAV RTU) list these parameters and their ranges or possible selections.

Table 18: Zoning System Setup Parameters

Parameter

Parameter Range/Selections

Control Mode

Heating, Cooling, Fan Only, Off, Auto

 

 

Min Number of Requests to Change Mode

1 to 4

 

 

Min Number of Urgent Requests to Change Mode

1 to 4

 

 

Min Time Before Changeover

10 to 60 minutes

 

 

Static Pressure Setpoint

0.5 to 2.0 in. w.c.

 

 

Discharge Cooling Setpoint

45.0 to 60.0 Deg F

 

 

Discharge Heating Setpoint

85.0 to 130.0 Deg F

 

 

Number of Cooling Stages

Up to 4

 

 

Number of Heating Stages

Up to 3

 

 

Table 19: Zoning System Setup Parameters - VAV RTU

Parameter

Parameter Range/Selections

Control Mode

Auto or Off

 

 

Discharge Air Temp Setpoint

45.0 to 65.0 Deg F

 

 

Discharge Air Temp Strategy

Zone Air or Off

 

 

Duct Static Setpoint

0.50 to 4.50 in wc

 

 

Duct Static Setpoint Reset

Enabled or Disabled

 

 

Max Duct Static Setpoint Adjust

0.00 to 0.50 in wc

 

 

Morning Warm-up

Enabled or Disabled

 

 

Morning Warm-up Return Air Setpoint

50.0 to 85.0 Deg F

 

 

Representative Zone

<name of zone>

 

 

Max DAT1 Setpoint Adjust

0.0 to 5.0 Deg F

Unoccupied Heating/Cooling

Enabled or Disabled

 

 

Duct Static Shutdown Limit

0.50 to 4.50 in wc

 

 

 

 

 

 

1. Discharge air temperature.

 

5.After you complete the zoning system changes, press OK. The Zoning System Setup screen returns, reflecting the changes you made.

System Manager/Zone Coordinator User’s Manual

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York YK-ZCU4x0-0, YKSMU2x0-0, YK-ZCU2x0-0 user manual Zoning System Setup Parameters VAV RTU

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