Carrier 30GK 用户手册

27

The table below summarises the unit control type and stop or
go status with regard to the following parameters.
-

Operating type: this is selected using the start/stop button
on the front of the user interface.

Remote start/stop contacts: these contacts are used when
the unit is in remote operating type (rEM). See sections
3.6.2 and 3.6.3.

CHIL_S_S: this network command relates to the chiller
start/stop when the unit is in CCN control (CCn). Vari-
able forced to disable: the unit is halted. Variable forced to
Enable: the unit runs in accordance with schedule 1.

Start/Stop schedule: occupied or unoccupied status of the
unit as determined by the chiller start/stop program
(Schedule #1). Used when the unit is equipped with an
optional CCN/clock board, otherwise the chiller occupied
mode is forced to occupied all the time.

Master control type. This parameter is used when the
unit is the master unit in a two chiller lead/lag arrange-
ment. The master control type determines whether the unit
is to be controlled locally, remotely or through CCN (this
parameter is a Service configuration).

CCN emergency shutdown: if this CCN command is
activated, it shuts the unit down whatever the active
operating type.

General alarm: the unit is totally stopped due to failure.

The current heat/cool operating mode on the unit is indicated
by item 4 in the Information menu and by the heat/cool LEDs
on the summary interface.

Off

On

On

On

On

On

On

-

Local

Local

Remote

Remote

CCN

CCN

-

Cooling

Heating

-

-

-

-

-

-

-

Cooling mode

Heating mode

-

-

-

-

-

-

-

Cooling

Heating

-

-

-

-

-

-

-

-

-

-

Enable

-

-

Off

-

-

-

-

-

-

-

-

-.

-.

-

Yes

-

Off

Active -

-

-

-

-

-

-

-

-

-

-

Local

Off

-

-

Active

-

-

-

-

-

-

Unoccupied

-

-

Local

Off

-

-

-

Active

-

-

-

Off

-

-

-

-

Remote

Off

-

-

-

Active

-

-

-

-

-

Unoccupied

-

-

Remote

Off

-

-

-

-

Active

-

Disable

-

-

-

-

-

CCN

Off

-

-

-

-

Active

-

-

-

-

Unoccupied

-

-

CCN

Off

-

-

-

-

-

Active

-

-

Local

Unoccupied

-

-

Local

Off

-

-

-

-

-

Active

-

Off

Remote

-

-

-

Remote

Off

-

-

-

-

-

Active

-

-

Remote

Unoccupied

-

-

Remote

Off

-

-

-

-

-

Active

Disable

-

CCN

-

-

-

CCN

Off

-

-

-

-

-

Active

-

-

CCN

Unoccupied

-

-

CCN

Off

-

Active

-

-

-

-

-

-

-

-

Disable

No

Local

On

-

-

Active

-

-

-

-

-

-

Occupied

Disable

No

Local

On

-

-

-

Active

-

-

-

On

-

Occupied

Dsable

No

Remote

On

-

-

-

-

Active

-

Enable

-

-

Occupied

Disable

No

CCN

On

-

-

-

-

-

Active

-

-

Local

Occupied

Disable

No

Local

On

-

-

-

-

-

Active

-

On

Remote

Occupied

Disable

No

Remote

On

-

-

-

-

-

Active

Enable

-

CCN

Occupied

Disable

No

CCN

On

On heat pumps, heating/cooling selection can be controlled
differently depending on the active operating type:
•

Locally on the unit, using operating types L-C1, L-C2,
LC1r and LC2r (for cooling) and L-H (for heating).

•

Remotely using the heat/cool selection volt-free contact
when the unit is in Remote operating type (rEM).

•

Via a CCN command when the unit is in CCN operating
type (CCn).