Trane A5AHC002A1B30A - External Switches and Accessories

18
18-GF81D1-1A-EN
External Switches and
Accessories
The following optional connections are available on the
mitigation control board (see hook-up diagrams Figure
2, p. 18):
• ACC1 and ACC2 accessory connections. Use when
connecting an accessory to the air handler that
could be considered a source of ignition (ex.
electronic air cleaner).
• Aoa/Aob audible alarm connections. Use when
configuring an audible alarm on the refrigerant
detection system of the air handler.
ACC1, ACC2, and Aoa/Aob are dry contacts and need
source voltage provided from either the accessory or
the unit's control wiring.
Connect using field-supplied 3/16" (Aoa/Aob) or 1/4"
(ACC1, ACC2) female spade connections.
Figure 2. Accessories Diagram
Thermostat Air Handler EAC
24 VAC HOT
FAN
ACCESSORY INTERLOCK 1A
ACCESSORY INTERLOCK 1B
AUDIBLE ALARM OUT A
AUDIBLE ALARM OUT B
EXTERNAL SWITCH A
EXTERNAL SWITCH B
24 VAC Common
R
G
B
G
R
R
G
B
W
ACC1a
ACC1b
Aoa
Aob
SWa
SWb
B
Blue
Thermostat Air Handler Alarm
24 VAC HOT
FAN
ACCESSORY INTERLOCK 1A
ACCESSORY INTERLOCK 1B
AUDIBLE ALARM OUT A
AUDIBLE ALARM OUT B
EXTERNAL SWITCH A
EXTERNAL SWITCH B
24 VAC Common
R
G
B
G
R
V+
V-
ACC1a
ACC1b
Aoa
Aob
SWa
SWb
B
Blue
Electronic Air Cleaner, typical
24VAC Audible Alarm, typical
Scan QR code to view instructional
videos on field wiring for CleanEffects
or AccuClean electronic air cleaners.
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