Installing the Zone Ctrl II
Zone Ctrl II and
VAV Zone II Secondary Duct Installation and Start-up Guide
CARRIER CORPORATION ©2019
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14
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To set up the Airflow Control microblock
The Zone Ctrl II's control program must include one Airflow Control microblock for a single duct system or two of
the microblocks for a dual duct system. You must set up the Airflow Control microblock for each flow sensor when
creating a program in Snap.
NOTE
The Airflow Control microblock is already set up and adjusted in all of the EquipmentBuilder programs for
this controller. You do not need to adjust the Airflow settings at all when using one of them. For a list of
EquipmentBuilder control programs, see
To use an EquipmentBuilder control program
(page 29).
In a single duct system
1
In the i-Vu® interface, select
Properties
>
Service Configuration
>
Flow Control
.
NOTE
You can also access the control program's Airflow Control microblock on the
Logic
page.
2
On the
Details
tab in the
Flow Sensor
field under
Hardware Configuration
, select
Integral - onboard
.
3
In the
Damper Actuator
field, select
Integral - onboard
.
In a dual duct system
1
In the i-Vu® interface, select
Properties
>
Service Configuration
>
Cold Deck Flow Control
.
NOTE
You can also access the control program's Cold Deck Airflow Control microblock on the
Logic
page.
2
On the
Details
tab under
Hardware Configuration
,
in the
Flow Sensor
field, select
Integral - onboard
.
3
In the
Damper Actuator
field, select
Integral - onboard
.
4
On the
Logic
page, select the Airflow Control microblock for Flow #2.
NOTE
The secondary Airflow microblock is not listed on the Properties page in the i-Vu® interface.
5
On the
Details
tab under
Hardware
Configuration
in the
Flow Sensor
field, select
Integral - remote
.
6
In the
Damper Actuator
field, select
Integral - remote
.
NOTES
•
When performing test and balance, follow the steps under
Test and Balance
on the Airflow Control
microblock's
Properties
page
Details
tab.
•
If you are using a version of the Snap application that is prior to v7.0, you must change the
Damper Motor
Travel Time
to 154 seconds.