Trane BAYECON355 Series, Installation Manual

Page: 9 / 24

RT-SVN044A-EN 9
Table 3. Economizer module - right hand terminal
blocks
Label
Type
Description
Top Right Terminal Block
n/a The first pin is not used
AUX2 I 24 Vac IN Shut Down (SD) or Heat (W)
Conventional only or Heat Pump
Changeover (O/B) in Heat Pump mode
OCC 24 Vac IN Occupied / Unoccupied Input
E-GND EGND Earth Ground - System Required
EXH1 24 Vac OUT Exhaust Fan 1 Output
AUX1 O 24 Vac OUT Programmable: Exhaust fan 2 Output or
ERV or System Alarm output
Bottom Right Terminal Block
Y2-I 24 Vac IN Y2 in - Cooling Stage 2 Input from
Space Thermostat
Y2-O 24 Vac OUT
Y2 out - Cooling Stage 2 Output to
Stage 2 Mechanical Cooling
Y1-I 24 Vac IN Y1 in - Cooling Stage 1 Input from
Space Thermostat
Y1-O 24 Vac OUT Y1 out - Cooling Stage 1 Output to
Stage 1 Mechanical Cooling
C COM 24 Vac Common
R 24 Vac 24 Vac Power (Hot)
Use of the Keypad When Working with
Menus
• 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 currently displayed item.
• Press the ∆ button to increase (change) the
displayed parameter value.
• Press the ∇ button to decrease (change) the
displayed parameter value.
N No otte e:: When values are displayed, pressing and
holding the ∆ or ∇ buttons causes the display
to automatically increment.
• Press the button to accept the displayed value
and store it in non-volatile RAM.
• ‘CHANGE STORED’ displays.
• Press the button (Menu Up) to return to the menu
list.
Time-out and Screensaver
When no buttons have been pressed for 10 minutes,
the LCD displays a screensaver, which cycles through
the Status items. Each Status item displays in turn and
cycles to the next item after 5 seconds.
Controller Menu Structure
IIm mp po orrtta an ntt:: Table 4, p. 10 illustrates the complete
hierarchy. Your menu parameters will be
different depending on your configuration.
For example if you do not have a DCV (CO
2
)
sensor, then none of the DCV parameters
appear and only MIN POS will display. If
you have a CO
2
sensor, the DCV MIN and
DCV MAX will appear AND if you have 2
speed fan DCV MIN (high and low speed)
and DCV MAX (high and low speed) will
appear.
The menus in display order are:
• STATUS
• SETPOINTS
• SYSTEM SETUP
• ADVANCED SETUP
• CHECKOUT
• ALARMS
E Ecco on no om miizze err C Co on nttrro olllle err