Thermostat Chart - Single Stage Ac With Psc Furnace - York GCGA SERIES Installation Manual

548086-XIM-C-0814
For additional connection diagrams for all UPG equipment refer to "Low Voltage System Wiring" document available online at www.upgnet.com in the
Product Catalog Section.
*PP32U70124
C
24 - Volt Common
Y1
First Stage
Compressor
R R
24 - Volt Hot 24 - Volt Hot
(Heat XFMR) (Heat XFMR)
G
Fan
E/W1 E/W1
Emergency Heat Emergency Heat
AUX
Auxiliary Heat
R
24 - Volt Hot
(Cool XFMR)
Y2
Second Stage
Compressor
External Humidistat
(Optional)
Open on Humidity Rise
24VAC Humidifier
Relay
(Optional)
Connection of the "C"
terminal, 24-Volt common
is optional when used with
batteries
Thermostat Installer Setup
0170-System Type-must
be set to 1-1 Heat/1 Cool
Conventional
FIGURE 12: Thermostat Chart - Single Stage AC with PSC Furnace
10
Single Stage Air Conditioner - Single Stage PSC Furnace
YG8S
SINGLE STAGE
FURNACE CONTROL
24 - Volt Common
PSC
FURNACE
SINGLE STAGE
PSC
C
Y
Single Stage
Compressor
R
24-Volt Hot
G
Fan
W
Full Stage Heat
SINGLE STAGE
AIR
CONDITIONER
SINGLE STAGE
AIR CONDITIONER
C
24 - Volt Common
Y Y
Compressor Contactor Compressor Contactor
A0161-001 A0161-001
Johnson Controls Unitary Products