Electronic Thermostat Installation - Geostar ASTON Series Installation Manual

Electronic Thermostat Installation

Position the thermostat subbase against the wall so that
it is level and the thermostat wires protrude through
the middle of the subbase. Mark the position of the
subbase mounting holes and drill holes with a 3/16-inch
bit. Install supplied anchors and secure base to the wall.
Thermostat wire must be 8-conductor (4 or 5 conductor
for communicating thermostats), 20-AWG (minimum)
wire. Strip the wires back 1/4-inch (longer strip lengths
may cause shorts) and insert the thermostat wires into
the connector as shown. Tighten the screws to ensure
secure connections. The thermostat has the same type
connectors, requiring the same wiring. See instructions
enclosed in the thermostat for detailed installation and
operation information.
NOTE: Aurora Base Control (ABC) DIP switch SW2-7 is
required to be in the "OFF" position for the control to
operate with FaultFlash or ComforTalk thermostats. SW2-
7 in the "ON" position configures the control to operate
with typical thermostats (continuous lockout signal).
There must be a wire connecting Y2 on the Aurora
controller to 2nd stage compressor on the thermostat for
proper operation.
Thermostat Wiring for Dual Fuel Applications
Thermostat
Y1
Y2
O
Fossil Fuel
L
Furnace
C
C
Common
R R
24 VAC
W
Auxiliary Heat Relay
G
G
Fan
W
Auxiliary Heat Relay
Note: Field installed SPST dual fuel relay
(Required for dual fuel installation)
or use TP32U03 or TP32U04
ASTON & ASTON ADVANCED DUAL-CAPACITY OUTDOOR SPLIT SERIES INSTALLATION MANUAL
5 Series Split
1st Stage Compressor
Y1
2nd Stage Compressor
Y2
Reversing Valve
O
P1
Fault Signal
LO
Common
C
24 VAC
R
Shut
P2
Down
Auxiliary
Heat Relay
= chassis
Standard Non-Communicating Control Option A
Field low voltage point to point wiring:
From
Thermostat
C
R
G
O
Y1
Y2
W2
L
Air Handler transformer must be 75VA.
Communicating Thermostat Control Option A
Field low voltage point to point wiring:
From To ABC P7 in
Communicating Compressor
Thermostat
C
R
-
+
Air Handler transformer must be
75VA.
Non-Communicating Thermostat Control Option C
Field low voltage point to point wiring:
To ABC in
From
Compressor
Thermostat
Section
C
R
G
O
Y1
Y2
W2
L
Air Handler transformer must be 100VA.
Communicating Thermostat Control Option C
Field low voltage point to point wiring:
From
Communicating
Thermostat
C
R
-
+
Air Handler transformer must be 100VA.
13
To Air To Compressor
Handler
C
R
G
O
Y1
Y2
W
L
From ABC
Section
Outputs
C
C
R
R
-
+ G
CC
CC2
EH1
From ABC
P7 in
Compressor
Section
C C
R R
G -
O +
Y1
Y2
W
L
To Compressor
To Air
Handler PB3
ABC Board
C
R
-
+
Section
C
R
O
Y1
Y2
L
5/3/2017
To Air
Handler
C
R
G
Y1
Y2
W
O
L
5/3/2017
To PB2
in Air
Handler
C
R
-
+
3/7/2017
Section
C
R
-
+
1/10/2017