998659-YIM-C-0614
Johnson Controls Unitary Products
29
Options/Accessories
Electric Heat
Electric heaters are available as factory-installed options or
field-installed accessories. Refer to electric heat instructions for
installation. These heaters mount in the heat compartment with
the heating elements extending into the supply air chamber. All
electric heaters are fused and intended for use with single point
power supply.
Motorized Outdoor Damper
The Motorized Outdoor Damper can be a factory installed
option or a field installed accessory. If factory installed, refer to
the instructions included with the outdoor air hood to complete
the assembly. Field installed Motorized Outdoor Damper
accessories include complete instructions for installation.
Economizer
The Economizer can be a factory installed option or a field
installed accessory. If factory installed, refer to the instructions
included with the outdoor air hood to complete the assembly.
Field installed Economizer accessories include complete
instructions for installation.
There are two Economizer options:
1.
Down Flow application with barometric relief hood standard.
2.
Horizontal Flow application that requires the purchase of a
barometric relief hood.
Power Exhaust
The Power Exhaust can be a factory installed option or a field
installed accessory. If factory installed, refer to the instructions
included with the outdoor air hood to complete the assembly.
Field installed Power Exhaust accessories include complete
instructions for installation.
The Power Exhaust factory installed option is for Down Flow
application only.
There are two field installed Power Exhaust accessories:
1.
Down Flow application.
2.
Horizontal Flow application that requires the purchase of a
barometric relief hood.
Rain Hood
All of the hood components, including the filters, the gasketing
and the hardware for assembling, are packaged and located
between the condenser coil section and the main unit cabinet, if
the unit has factory installed options. If field installed
accessories are being installed all parts necessary for the
installation comes in the accessory.
Economizer Interface Overview
This section describes how to use the Economizer’s user
interface for:
• Keypad and menu navigation
• Settings and parameter changes
• Menu structure and selection
User Interface
The user interface consists of an LCD display and a 4-button
keypad on the front of the Economizer module. The LCD is a 16
character by 2 line dot matrix display.
Figure 25: Economizer LCD and Keypad Layout.
Keypad
The four navigation buttons illustrated in Fig. 25 are used to
scroll through the menus and menu items, select menu items,
and to change parameter and configuration settings.
Using the Keypad with Menus
To use the keypad when working with menus:
• Press the
button to move to the previous menu.
• Press the
button to move to the next menu.
• Press the
button (Enter) to display the first item in the
currently displayed menu.
• Press the
button (Menu up) to exit a menu’s item and
return to the list of menus.
Using the Keypad with Settings and Parameters
To use the keypad when working with Setpoints, System and
Advanced Settings, Checkout tests, and Alarms:
• Navigate to the desired menu.
• Press the
button (Enter) to display the first item in
the currently displayed menu.
• Use the
and
buttons to scroll to the desired
parameter.
• Press the
button (Enter) to display the value of the
MENU UP
(EXIT)
BUTTON
SCROLL
(UP/DOWN)
BUTTONS
SELECT (ENTER)
BUTTONS
2 LINE
LCD
