Trane Symbio 210 Installation, Operation And Maintenance Manual page 20

Wiring Installation
Item
Symbio 500 Board
24 Vdc Supply
Binary Outputs (Relay and
TRIAC)
BO1 to BO3
BO4 to BO9
Below is an example calculation for a cooling-only box current requirements:
Description
• Symbio 500 no I/O
• Setpoint and Zone Temperature
• Flow
• Occupancy Input
• Binary for Air Damper (only one energized at a time,
not including
• actuator draw)
• Total
With a Trane F Series Box:
(a) See device connected to DC supply for current draw.
•
•
Table 11. Binary load values
Style
F - Style Actuator
Air Valve Actuator C through E Style
Fan Power Fan Output
Hot Water Proportional
Hot Water 2 Position
Electric Heater Magnetic Contactor
Electric Heater Mercury Contactor
Note: VariTrane cooling-only Series D and E models consume 20 VA (12 VA for the actuator and 8 VA
20
Sub
Symbio 500 (No I/O)
5 x AI
2 x UI
2 x PI
3 x BI
2 x AO
3 x BO (Relay)
6 x BO (TRIAC)
200 mA (a)
Draw
• 8 VA
• 0.4 VA
• 0.13 VA
• 0.17 VA
• 0.34 ςΑ
• 9.2 VA (Plus air damper draw)
Replace the control box cover after field wiring to prevent any electromagnetic interference.
Review the table below for factory-installed components and voltage amperage.
for the board). The heating output ratings remain the same.
VA Draw Per I/O (24 Vac)
0.2 VA per AI
0.13 VA per UI
0.13 VA per PI
0.17 VA per BI
1 VA Per AO
1 VA Per Relay (No Load)
0.34 VA Per TRIAC (No Load)
1 VA Per 25 mA DC
See "Device Connections," p. 14
0.5 A- 12 VA@ 24 Vac
13.2 VA Total
Volt Amps
4 VA
12 VA
6 VA
4 VA
6.5 VA
10 VA
12 VA
Vac)
8 VA
1 VA
0.25 VA
0.25 VA
0.5 VA
2 VA
3 VA
1 VA
Subtotal for Symbio 500; 16 VA
8 VA
Total for Symbio 500; 24 VA
See "Device Connections," p. 14
12 VA Maximum
BAS-SVX091A-EN