Trane Zone Panel Installation Manual page 14

12
Mount the Zone Panel 24V Power Supply
A separate, field-supplied 24 volt transformer is required
to power the Zone Panel, communicating sensors
and dampers. VA sizing of the transformer will be
dependant on the total VA of all installed zone panels,
communicating sensors and zone dampers. Connect this
dedicated 24 volt source to the R and B terminals.
NOTE: To prevent possible communication errors,
connect the B/common of the field-supplied Zone Panel
transformer to the indoor unit B/common or equipment
ground.
EXAMPLE:
Transformer Sizing Example (8 Zone System, 1 Damper per Zone)
Component
Zone Panel
Zone Dampers*
Communicating
Sensor
Minimum Transformer VA Required
*Add the VA of each communicating sensor
13
Connect the Dampers
The dampers will have the same terminal
designation as the Zone Panel.
For each damper:
• Connect Common from the damper to
Common on the Zone Panel.
• Connect PO/Open from the damper to
PO/Open on the Zone Panel.
• Connect PC/Close from the damper to
PC/Close on the Zone panel.
Repeat this for each damper installed (see
the damper installer's guide).
14
Qty VA (ea)
2 2
8 1.5
4 2
1 - 4
5 - 8
D B D B
Reserved
Indoor/ Comm
Relay Panel
Outdoor
Reserved
Reserved
Common
PO/Open
PC/Closed
Common
PO/Open
PC/Closed
Common
PO/Open
PC/Closed
Common
PO/Open
PC/Closed
Power Supply Connections
Terminal
Name
R
B
1 - 4
5 - 8
Total VA
4
D
Reserved
12
Indoor/
Relay Panel
Reserved
8
Reserved
24
Common
PO/Open
PC/Closed
Common
PO/Open
PC/Closed
Common
PO/Open
Terminal Name
PC/Closed
Reserved
Common
Reserved
PO/Open
Reserved
PC/Closed
Common
D R B R B
PO/Open
24V
PC/Close
Comm Zone Sensor/
Trans.
2nd Zone Panel
Common
PO/Open
PC/Close
Common
PO/Open
PC/Close
Common
PO/Open
PC/Close
* Zones 5–8 are only when a second zone panel is used.
NOTES:
•
60 second drive dampers are the default. 15-60 second dampers
Comm
can be used, timing must be set at the 950/1050 Control.
•
Up to 4 dampers may be used per zone (6 VA Max.).
•
Mixing dampers from multiple manufacturers in the same zone is
not permitted.
Description Color Used:
24V Hot
Common
B D B D B
R
Comm
Comm Zone Sensor/
Outdoor
2nd Zone Panel
Zone Dampers
Description Color Used:
Common
Comm
Power Open
Power Close
Common
Power Open
Gnd/Grn
Power Close
Signal/Blk
Common
+5V/Red
Power Open
Discharge Air
Power Close
Discharge Air
Common
Return Air
Power Open
Return Air
Power Close
Mixed Air
Common
Mixed Air
Power Open
Zone 1 or 5
Power Close
Zone 1 or 5
Zone 2 or 6
Zone 2 or 6
Zone 3 or 7
Zone 3 or 7
Zone 4 or 8
Zone 4 or 8
R B
Gnd/Grn
24V
Signal/Blk
Trans.
+5V/Red
Discharge Air
Discharge Air
Return Air
Return Air
Mixed Air
Mixed Air
Zone 1 or 5
Zone 1 or 5
Zone 2 or 6
Zone 2 or 6
Zone 3 or 7
Zone 3 or 7
Zone 4 or 8
Zone 4 or 8
18-HD66D1-4