548086-XIM-C-0814
10
Johnson Controls Unitary Products
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.
FIGURE 12:
Thermostat Chart - Single Stage AC with PSC Furnace
SINGLE STAGE
AIR
CONDITIONER
*PP32U70124
SINGLE STAGE
AIR CONDITIONER
Single Stage Air Conditioner - Single Stage PSC Furnace
Y
Compressor Contactor
Y
Compressor Contactor
R
24 - Volt Hot
(Heat XFMR)
R
24 - Volt Hot
(Heat XFMR)
E/W1
Emergency Heat
E/W1
Emergency Heat
AUX
Auxiliary Heat
R
24 - Volt Hot
(Cool XFMR)
Y2
Second Stage
Compressor
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
A0161-001
A0161-001
SINGLE STAGE
PSC
FURNACE
SINGLE STAGE
PSC
FURNACE CONTROL
W
Full Stage Heat
Y
Single Stage
Compressor
YG8S
C
24 - Volt Common
C
24 - Volt Common
R
24-Volt Hot
G
Fan
C
24 - Volt Common
Y1
First Stage
Compressor
G
Fan
24VAC Humidifier
Relay
(Optional)
External Humidistat
(Optional)
Open on Humidity Rise
