Electronic Thermostat Installation - York YAZS022 Installation Manual

Electrical Connections cont.
Pump Power Wiring
See Figure 11 for electrical connections from control box
to pumps.
FC1/FC2 style flow centers with fixed speed pumps connect to
PB1 in the control box.

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
counductor 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. The W1 terminal
on TPCM32U03YRK and TPCM32U04YRK communicating
thermostats may be hard wired to provide aux/emergency heat in
the event communication is lost between the thermostat and the
ABC microprocessor.
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.
AFFINITY INDOOR SPLIT SERIES INSTALLATION MANUAL
Figure 11: Pump Wiring 208-230/60/1
PB1
External
Loop Pump(s)
208-230/60/1
1/2 hp Max
Figure 12: Thermostat Wiring (Y1 Style Signals)
R
C
Y1
Y2
W
O
G
L
15
24VAC (Hot)
24VAC (Common)
Compressor (1st Stage)
Compressor (2nd Stage)
Aux. Heat
Reversing Valve
Blower Relay
System Monitor
CB