Johnson Controls York AYK550 - Application Macros; Macro Overview and Selection

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Macros change a group of parameters to new, predefined values designed for
specific applications. Use macros to minimize the need for manual editing of
parameters. Selecting a macro sets all other parameters to their default values,
except:
• Group 99: Start-up Data parameters
• The
PARAMETER LOCK 1602
• The
PARAM SAVE 1607
• Groups 50…52 serial communication parameters
• Group 29: Maintenance triggers
After selecting a macro, additional parameter changes can be made manually using
the control panel.
Application macros are enabled by setting the value for parameter 9902
APPLIC
MACRO
. By default, HVAC default (value 1) is the enabled macro.
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The following considerations apply for all macros:
• When using a direct speed reference in AUTO mode, connect the speed
reference to analog input 1 (AI1), and provide the START command using digital
input 1 (DI1). In HAND/OFF mode, the control panel provides the speed
reference and START command.
• When using process PID, connect the feedback signal to analog input 2 (AI2). As
a default, the control panel sets the Setpoint, but analog input 1 can be used as
an alternate source. You can set up process PID using parameters (Group 40) or
using the PID control assistant (recommended).
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This section describes the following macros:
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1 HVAC default
8 Internal timer
2 Supply fan
9 Internal timer with constant speeds
3 Return fan
10 Floating point
4 Cooling tower fan
11 Dual setpoint PID
5 Condenser 12 Dual setpoint PID with constant speeds
6 Booster pump 13 E-bypass
7 Pump alternation
14 Hand Control