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A1-A2-A3 DRY CONTACT CLOSURE
Not
S upply
Used
Air
S ensor
Use #18 gauge cable between the
damper or equipment to be controlled. Cables do not
need to be shielded.
The A1-A2-A3 terminals are an isolated set of dry
contacts rated 1 Amp at 24 VAC.
Connect the cable to the appropriate terminals marked
A1-A2-A3. Connect the other end to the damper or
equipment to be controlled as needed.
The default operation for A1-A2 is open during "oc-
cupied" period and closed during "unoccupied" period.
A2-A3 is closed during "Occupied" period and open
during "unoccupied" period.
Note: Alternatively, these contacts can be controlled
remotely via the Internet. See Appendix A.
WIRING DIAGRAM
Non-twisted Pair #18 AWG Wire
A
A
A
1
2
3
Rem ote
Room
Tem perature
(& Hum idity )
1 Amp
S ensor
(Max) @
24VAC
500 feet (maximum)
(not supplied)
A1-A2-A3 Relay: Normal
position indicated.
Contacts reverse during
Unoccupied (night) mode
Or, via OFF signal from
website.
Dry contacts
are isolated .
e-Stat
14
May be
used for
night shutdown
of dampers or
other equipment
A1-A2 =
Normally Open
(N.O) Contacts
A2-A3 =
Normally Closed
(N.C) Contacts
and the
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