Johnson Controls 050, Установка, эксплуатация и обслуживание

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JOHNSON CONTROLS
67
FORM 100.50-NOM6
ISSUE DATE: 8/07/2017
5
UNIT TYPE
The Simplicity Control is capable of being configured
for either Constant Volume (CV) or Variable Air Vol-
ume (VAV) operation. To configure the unit for VAV
operation a 10,000 to 20,000 ohm resister must be in-
stalled on the P7 (CV/VAV) connector on the control
board. If no resister is installed the unit is configured
for CV operation. The control board should already be
configured from the factory based on the type of unit
that was ordered. However, this item should be verified
at the time of start up. This feature will also need to be
configured if a replacement control board is installed.
OCCUPIED / UNOCCUPIED MODE
The unit can be placed in the occupied or unoccupied
mode by four different methods:
1. Digital Input – A switch, external time clock, etc.
can be used to close a 24VAC circuit between the
“R” and “OCC” connection on the field con -
nection terminal block of the Simplicity control
board. When the circuit is closed, the unit is in the
Occupied mode. If the circuit is open, the unit is in
the unoccupied mode. In order to use this feature
“OCCUPIED INPUT ENABLED” must be en-
abled using Parameter 71 under the PROGRAM
key on the Simplicity control board or under the
SYSTEMS OPTIONS tab in the Simplicity PC
software package.
2. Internal Schedule – The Simplicity Control can
be programmed for a weekly schedule that allows
two occupied and two unoccupied times for each
day. The control can also be configured for up to
20 Holiday schedules. The start date, time, and
number of days can be programmed in for each
holiday. The weekly schedule can be programmed
using the WEEKLY SCHEDULE SETTINGS
tab in the Simplicity PC software package. The
holiday schedule can be programmed using the
HOLIDAY SCHEDULE tab in the Simplicity
PC software package. In order to use this feature
“OCCUPIED INPUT ENABLED”
must be dis-
abled using Parameter 71 under the PROGRAM
key on the Simplicity control board or under the
SYSTEMS OPTIONS tab in the Simplicity PC
software package.
SECTION 5 – SEQUENCE OF OPERATION
3. An
“Occupancy Command”
can be entered into
the Simplicity Control using the Modbus com-
munication feature. In order to use this feature
“OCCUPIED INPUT ENABLED” must be en-
abled using Parameter 71 under the PROGRAM
key on the Simplicity control board or under the
SYSTEMS OPTIONS tab in the Simplicity PC
software package.
4. Space Sensor with Unoccupied Override Button
– If the Override Button is pushed on the space
sensor the control will switch to the Occupied
mode until the Unoccupied Override Time has
expired. The Unoccupied Override Time can be
set between 0 and 240 minutes. The “UNOCCU-
PIED OVERRIDE TIME” can be programmed by
selecting Parameter 9 using the Simplicity control
board PROGRAM key or by using the SYSTEMS
OPTION tab in the Simplicity PC software pack-
age.
CONSTANT VOLUME MODE (CV)
A Constant Volume (CV) unit can be controlled by four
methods:
1. Stage thermostat
2. Communicated Space Temperature
3. Hardwired Space Temperature
4. Stand Alone
The control is self-configuring based on the inputs that
are present. The controls means are listed in their order
of priority. If the Simplicity Control sees a thermostat
input it will respond to that input regardless of the sta-
tus of the Space Temperature input. This feature allows
the Service Technician to easily energize a cooling or
heating function for troubleshooting regardless of a
space temperature input.
As long as the Simplicity Control is receiving a space
temperature input from the BAS system, it will use
the communicated value instead of a hard wired space
temperature input.
The following parameters must be programmed to al-
low cooling and/or heating operation:
•
“COOLING MODE OPERATION ENABLED”
– must be enabled using Parameter 53 under the
PROGRAM key on the Simplicity control board
or under the COOLING SETUP tab in the Sim-
plicity PC software package.