Orion-system VCC-X Controller Instrukcja Użytkownika Pobierz pdf (Strona 29)

VCC-X Operator Interface SD

VCC-X CONFIGURATION

Conﬁ guration Screen #22 - Fan Starting Delay

VCC-X Cnfg ID #

Fan Starting

Delay: -1s

[-1 = Unit Addr x 5]

Enter the number of seconds you want the fan to delay starting. This is

the Supply Fan Starting Delay initiated whenever the VCC-X initiates

Supply Fan operation upon going occupied or after power-up. This is

useful when you are using multiple VCC-X-controlled HVAC units and

want to be sure that all the units do not start at exactly the same time

when the Occupied schedule occurs. Each VCC-X should be set with

staggered Fan Starting Delay Setpoint values. When the -1 value is used,

it multiplies each VCC-X Controller’s address by 5 and uses this value

in seconds as the Fan Starting Delay. This provides a staggered start for

each VCC-X Controller on the system without having to individually set

each VCC-X Controller for its own time delay.

For an MUA unit, this

should be set to a minimum of 60 seconds to let the OA Damper

open.

Default is -1 second.

Description Minimum Default Maximum

Fan Start Delay Timer -1 Sec -1 Sec 240 Sec

Conﬁ guration Screen #23 - Purge Mode Delay

VCC-X Cnfg ID #

Purge Mode

Delay: 10s

[ 0 - 900 Seconds ]

Enter the number of seconds you want the unit to stay in Purge Mode

before going into Occupied Mode. In Purge Mode, the fan runs with the

Economizer closed and all Cooling and Heating is de-energized.

For an

MUA unit, this should be set to 0 seconds to prevent a Purge Mode

(which is a damper closed operation).

Default is 10 seconds.

Conﬁ guration Screen #24 - Heat Type

VCC-X Cnfg ID #

Heat Type

No Heat

USE < or > TO CHANGE

Default is No Heat. Available options are:



No Heat

—The unit has no Heat.



Staged Only

—On/Off Hot Water or ﬁ xed stage(s) of Heat.



Mod Heat Only

—Only fully modulating forms of

Heat which would be Modulating Hot Water or Steam Heat

or Modulating SCR Electric Heat. Does not include

Modulating Gas using the AAON

MODGAS-X

Controller.

VCC-X Conﬁ guration Screens



Mod Heat Then Staged

—Fully modulating Heat as the

form of Heat and Stage(s) of Heat as the 2

form of

Heat.

 Mod Gas Heat Only—Only Modulating Gas Heat

controlled by the AAON

MODGAS-X Controller.

 Mod Gas Then Staged—ModGas Heat as the 1

form

of Heat and Stage(s) of Heat as the 2

form of Heat.

See the VCC-X Controller Technical Guide for a more detailed descrip-

tion of these operations.

Conﬁ guration Screen #25 - Modulating Heat

Output Signal

VCC-X Cnfg ID #

Mod Heat Volt Output

Min Pos Volts: 0.0

Max Pos Volts: 10.0

Enter a value between 0.0 and 10.0 VDC for the Modulating Heat

minimum and maximum output voltage. When performing reverse

acting heating, the minimum position volts will be the highest value.

Defaults are 0 VDC Min and 10 VDC Max.

Description Minimum Default Maximum

Minimum Position Volts 0 0 10

Maximum Position Volts 0 10 10

Conﬁ guration Screen #26 - Cool Type

VCC-X Cnfg ID #

Cool Type

Refrigeration Module

USE < or > TO CHANGE

Default is Refrigeration Module. Available options are:

 Refrigeration Module—A Refrigeration Module is

installed and conﬁ gured.

 Staged Only—On/Off Chilled Water or ﬁ xed stage(s)

DX Cooling only and no Compressor Dehumidiﬁ cation.

 Mod Only— Modulating Chilled Water

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 95 96

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