Orion-system VCC-X Controller Instrukcja Użytkownika Pobierz pdf (Strona 32)

Zone

VCC-X CONFIGURATION

VCC-X Operator Interface SD

Conﬁ guration Screen #39 - Exhaust Fan

Output

VCC-X Cnfg ID #

Exh Fan Volts

Min Volts: 0.0VDC

Max Volts: 10.0VDC

This conﬁ guration option is available if Modulating Building Pres-

sure Control was conﬁ gured on a previous screen. The following

will set the output voltage range for both Direct and Reverse Acting

Building Pressure Control. Defaults are 0 VDC Min Volts and 10

VDC Max Volts. Available options are:

 Min Volts—Voltage at which the signal to exhaust fan,

exhaust damper, or OA damper will be at 0% for either

Direct or Reverse Acting Building Pressure control.

 Max Volts—Voltage at which the signal to exhaust fan,

exhaust damper, or OA damper will be at 100% for

either Direct or Reverse Acting Building Pressure

control.

Description Minimum Default Maximum

Minimum Position Volts 0.0 0.0 10.0

Maximum Position Volts 0.0 10.0 10.0

Conﬁ guration Screen #40 - Dehumidiﬁ cation

Control

VCC-X Cnfg ID #

Dehum. Control:

None

USE < or > TO CHANGE

If using Dehumidiﬁ cation choose the appropriate Dehumidiﬁ cation

option. Default is None. Available options are:

 None—The unit does not have a Dehumidiﬁ cation

Mode.

 Only Occupied Vent—The unit can only enter

Dehumidiﬁ cation during the Occupied Vent Mode (when

there is no call for Cooling or Heating).

 Only Vent Anytime—The unit can only enter

Dehumidiﬁ cation during the Vent Mode (when there

is no call for Cooling or Heating) in both the Occupied

and Unoccupied operation.

 All Modes Occupied—This is Occupied Mode

Dehumidiﬁ cation Priority. The unit can enter

Dehumidiﬁ cation during Cooling, Heating, or Vent

Modes, but only while in Occupied operation.

VCC-X Conﬁ guration Screens

 All Modes Anytime—This is Occupied and

Unoccupied Dehumidiﬁ cation Priority. The unit can

enter Dehumidiﬁ cation during Cooling, Heating, or Vent

Modes while in Occupied or Unoccupied operation.

For units controlled by space humidity sensors, Dehumidiﬁ cation

is initiated based on an Indoor Humidity Setpoint. For 100% OA

units (MUA), Occupied Dehumidiﬁ cation is initiated based on

an Outdoor Air Dewpoint Setpoint. For MUA units, Unoccupied

Dehumidiﬁ cation can only occur if the unit is conﬁ gured for Night

Setback recirculating operation and has a Space Humidity sensor

and a Space Humidity Setpoint.

Conﬁ guration Screen #41 - Humidity Control

Sensor Type

VCC-X Cnfg ID #

Humidity Control

Sensor: Space

USE < or > TO CHANGE

Select Space, Return, or Outdoor if an E-BUS Humidity Sensor is

installed. Default is Space.

Conﬁ guration Screen #42 - Reheat Type

VCC-X Cnfg ID #

Reheat Control

None

USE < or > TO CHANGE

This conﬁ guration option is available if Dehumidiﬁ cation has been

conﬁ gured. If you need Reheat in the Dehumidiﬁ cation mode, this

screen allows you to conﬁ gure what kind of reheat will be used.

The output(s) will be staged or modulated to maintain the Active

Supply Air Setpoint. Default is None.

Select the type of reheat that

will be used during dehumidiﬁ cation.

 None—No reheat.

 On/Off HGR Relay—Single On/Off Reheat stage

(Reheat Relay).

 Mod HGR—Modulating Hot Gas Reheat (MHGR)

 Unit Heat—Using the unit’s heat as Reheat when Hot

Gas Reheat is not available.

 Mod HGR + Unit Heat—Using MHGR as the 1

form of Reheat, supplemented by unit Heat if necessary.

 On/Off HGR + Unit Heat—Using “Reheat Relay”

stage as the 1

form of Reheat, supplemented by unit

Heat if necessary.

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