York MILLENNIUM Y22, Installation Manual

Page: 106 / 140

102777-YIM-E-0206
106 Unitary Products Group
SIMPLICITY PROGRAMMING OPTIONS
The paragraphs below provide a definition of, and specify the
function related to, each of the parameters that are field-
adjustable using the interfaces available. The Millennium Unit
is shipped from the factory with the necessary options pre-
programmed as indicated by the model nomenclature. It is
always a good practice, though, to verify that the correct
parameters are properly configured for the unit you are com-
missioning. You can find a complete list of field-adjustable
parameters in the “
Settable System Parameters ”.
For a description of the parameters, see the Settable Sys-
tem Parameters below and Table 52.
INTERACTING THROUGH THE MILLENNIUM SIM-
PLICITY
SET THE CLOCK
• Power up the unit.
• Press the Program button [upper left].
• Press the Test/Up button [upper right]. Hold it in and it
will step through the parameters, or push in to advance
one parameter at a time. Advance to parameter 63,
Hours.
• Press Change [lower left] Press Up [upper right] or Down
[lower right] to the correct hour [24 hour time].
• Press Change to enter the new value.
• Press Up to get to parameter 64, Minutes.
• Press Change.
• Press Up or Down to get to the correct minute value.
Press Change to enter the new value.
• If you are done changing parameters, press Program to
exit the program mode.
PARAMETER SETTING
The buttons allow the operator to go to a specific parameter
and to view and change the data in that parameter.
• To enter the parameter setting mode, press the Pro-
gram button. The control will display the current
parameter number in the two-digit display, and the
present value of that parameter in the four-digit dis-
play.
• To change to another parameter, press the /Up or
/Down button to move to the address of the desired
parameter. The present value of that parameter will
display.
• To change the data, press the /Change button. The
value will flash. While it is flashing, press the /Up or
/Down button to increase or decrease the value.
• When the desired new value is showing, press the
/Change Data button again to tell the control to store
the new value. You can verify that the new value is
in place when the value stops flashing.
• To exit Program mode, press the Program button
again.
INITIAL STARTUP OPTIONS
Commissioning a new Millennium installation requires some
field adjustments to the Simplicity control program. Most of
these adjustments simply involve setting up the various set-
points that are specific to your customer’s needs (i.e. building
pressure) or enabling some extended options that are inte-
grated into the Simplicity control. Also, if there are field
changes, i.e. a modulating power exhaust option, the control
configuration will need to be modified for the new option.
METRIC OPERATION (ENGLISH)
The factory default for this option is OFF. The metric (SI) con-
versions are part of the controller software; when the Metric
parameter is selected, temperature setpoints and readings
will convert to Centigrade (°C).
SETTABLE SYSTEM PARAMETERS
The following headings list each parameter’s name and its
default setting. The control is set at the factory for the options
of the specific unit; if a replacement control is being installed,
the entire parameter set must be matched to the unit. The
number in (parentheses) is the value of a parameter in an un-
configured control.
Compressors - (2) - This tells the control the number of com-
pressors available. The Factory Default [the value in an
unconfigured replacement control] is 2 and can be adjusted
from 1 to 4.
Heat Stages - (2) - This tells the control the number of heat-
ing stages available. This parameter may be set from 0 to 3.
The default setting is 2 stages of heat.
Hydronic Heat - (OFF) - This tells the control that a Hot
Water Coil is installed. If the control is going to modulate the
Hot Water Valve it will also turn on the Heat One output. This
is to energize the VAV heat relay for the VAV boxes. The
default is OFF for this option. If this parameter is enabled,
remember to set the Hydronic Heat First and Second Stage
Setpoints and the Economizer Loading Setpoint found in the
”Simplicity Setpoints”.
Stage 1 Hydronic Heat SAT Setpoint - (120 ° F) - When the
Hydronic Heat option is enabled, the control will maintain this
SAT setpoint for a call for first stage Heating, by modulating
the Hot Water Valve. This is the reset temperature when
operating a
VAV unit in the Heating mode. The reset range
for SAT setpoint is from 80°F to 180°F with 120°F shipped as
the default.
Hydronic Heat Reverse Actuated Valve - (OFF) - This set-
ting is to allow convenient use of reverse acting water valves;
setting this parameter to (ON) will change the signal to 2VDC
= open, 10 VDC = closed.