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5011492-XIM-B-0815
18
Johnson Controls Unitary Products
• 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.
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.
Figure 9: Single Enthalpy Curve And Boundaries
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.
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.
TEMPERATURE
RATEMP
AB
SOLUTE H
U
MIDITY
ES4
ES5
ES3
ES2
ES1
HL
DUAL ENTHALPY
HIGH LIMIT
ECONOMIZING
SINGLE ENTHALPY
AVAILABLE
NOT AVAILABLE
P2 (T,RH)
P1 (T,RH)
ENTHALPY
RA
H
UM
(%
RH
)
Table 6:
Single Enthalpy and Dual Enthalpy High Limit Curves.
Enthalpy
Curve
Temp.
Dry-Bulb (°F)
Temp.
Dewpoint (°F)
Enthalpy
(btu/lb/da)
Point P1
Point P2
Temp. °F
Humidity %RH
Temp. °F
Humidity %RH
ES1
80.0
60.0
28.0
80.0
36.8
66.3
80.1
ES2
75.0
57.0
26.0
75.0
39.6
63.3
80.0
ES3
70.0
54.0
24.0
70.0
42.3
59.7
81.4
ES4
65.0
51.0
22.0
65.0
44.8
55.7
84.2
ES5
60.0
48.0
20.0
60.0
46.9
51.3
88.5
HL
86.0
66.0
32.4
86.0
38.9
72.4
80.3