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For additional connection diagrams for all UPG equipment refer to "Line Voltage System Wiring" document available on-line at
www.upgnet.com in the Product Catalog Section.
AC 26A
Two Stage Air Conditioner – Variable Speed Modulating Furnace
THERMOSTAT
*DN22U00124
C
24 – Volt Common
Y1
First Stage Compressor
R
24 – Volt Hot
(Heat XFMR)
G
Fan
E/W1
First Stage Heat
W2
Second Stage 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
1-System Type-must
be set to 6-2 Heat/2 Cool
Multistage Conventional
Thermostat Installer Setup
15-Compressor Protection
-must be set to 5
2
Thermostat Chart -
Unitary Products Group
THERMOSTAT
*PP32U70124
C
24 – Volt Common
Y1
First Stage Compressor
R
24 – Volt Hot
(Heat XFMR)
G
Fan
E/W1
Emergency Heat
AUX
Auxiliary Heat
R
24 – Volt Hot
(Cool XFMR)
Y2
Second Stage
Compressor
2
2
External Humidistat
(Optional)
Open on Humidity Rise
24VAC Humidifier
(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 8-2 Heat/2 Cool
Multistage Conventional
Part Number:
S1-2HU16700124
ID MODELS
PC9
FC9C
FL9C
VARIABLE SPEED
MODULATING
FURNACE
VARIABLE SPEED
MODULATING
FURNACE CONTROL
C
24 – Volt Common
Y1
Single Stage Compressor
R
24 – Volt Hot
G
Fan
W
Modulating Heat
Y/Y2
Second or Full
Stage Compressor
External Humidistat
HUM
(Optional)
Dehumidification-
Open on Humidity Rise
Open on Humidity Rise
Move HUMIDISTAT
jumper to "YES"
if humidistat is to be used.
Part Numbers:
SAP =
171334 = 031-09153
246815-YTG-D-0108
TWO STAGE
CONDITIONER
1
24 – Volt Common
First Stage Compressor
1
Legacy
AIR
C
Y1
R
24 – Volt Hot
Y2
Second Stage
Compressor
5
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