Single Enthalpy And Dual Enthalpy High Limit Curves; Single Enthalpy Curve And Boundaries - York DM036 Installation Manual

5011492-XIM-B-0815
• CHANGE STORED displays.
• Press the  button (MenuUp/Exit) to return to the
previous menu.
Menu Structure
The Menus in display order are:
• STATUS
• SETPOINTS
• SYSTEM SETUP
• ADVANCED SETUP
• CHECKOUT
• ALARMS
NOTE: Your menu parameters will be different depending on
your configuration. See the JADE™ Economizer
Module accessory instruction P/N 1150208-UAI-A-0514
included in this instruction packet for additional menu
information.
ECONOMIZING
AVAILABLE
NOT AVAILABLE
TEMPERATURE
Figure 9: Single Enthalpy Curve And Boundaries
Table 6: Single Enthalpy and Dual Enthalpy High Limit Curves.
Enthalpy Temp.
Curve Dry-Bulb (°F)
80.0
ES1
75.0
ES2
70.0
ES3
65.0
ES4
60.0
ES5
86.0
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Enthalpy Settings
When the OA temperature, enthalpy and dew point are below
the respective setpoints, the Outdoor Air can be used for
economizing. Fig. 9 shows the new single enthalpy boundaries
in the W7220. There are 5 boundaries (setpoints ES1 through
ES5), which are defined by dry bulb temperature, enthalpy and
dew point.
18
Temp. Enthalpy
Dewpoint (°F) (btu/lb/da)
60.0 28.0
57.0 26.0
54.0 24.0
51.0 22.0
48.0 20.0
66.0 32.4
Economizer Setup And Configuration
Before being placed into service, the JADE™ Economizer
module must be setup and configured for the installed system.
NOTE: During setup, the Economizer module is live at all
times.
The setup process uses a hierarchical menu structure that is
easy to use. You press the  and  arrow buttons to move
forward and backward through the menus and press the 
button to select and confirm setup item changes.
Time-out and Screensaver
When no buttons have been pressed for 10 minutes, the LCD
displays a screen saver, which cycles through the Status items.
Each Status items displays in turn and cycles to the next item
after 5 seconds.
P2 (T,RH)
ES5
Point P1
Temp. °F Humidity %RH
80.0 36.8
75.0 39.6
70.0 42.3
65.0 44.8
60.0 46.9
86.0 38.9
Refer to Table 6 for the ENTH CURVE setpoint values.
To use enthalpy the W7220 must have a C7400S Sylkbus
sensor for OA. The W7220 calculates the enthalpy and dew
point using the OA temperature and humidity input from the OA
sensor. When the OA temperature, OA humidity and OA dew
point are all below the selected boundary, the economizer sets
the economizing mode to YES, economizing is available.
DUAL ENTHALPY
HIGH LIMIT
SINGLE ENTHALPY
P1 (T,RH)
ES4 ES3 ES2 ES1
Point P2
Temp. °F Humidity %RH
66.3 80.1
63.3 80.0
59.7 81.4
55.7 84.2
51.3 88.5
72.4 80.3
Johnson Controls Unitary Products
HL