York PT8-UH Quick start guide

TECHNICAL GUIDE
AFFINITY
MODELS: PT8-UH
GAS-FIRED
HIGH EFFICIENCY TWO STAGE
UPFLOW/HORIZONTAL FURNACES
STANDARD & Low NOx
80% AFUE
NATURAL GAS
40 - 120 MBH INPUT
Due to continuous product improvement,
specifications are subject to change without notice.
Visit us on the web at www.york.com for the most
up-to-date technical information.
Additional rating information can be found at
www.gamanet.org.
EFFICIENCY
RATING
CERTIFIED
ISO 9001
Certified Quality
Management System
246755-YTG-D-0407
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
DESCRIPTION
These high efficiency, compact units employ induced com-
bustion, reliable hot surface ignition and high heat transfer
aluminized tubular heat exchangers. The units are factory
shipped for installation in upflow or horizontal applications.
These furnaces are designed for residential installation in a
basement, closet, alcove, attic, recreation room or garage
and are also ideal for commercial applications. All units are
factory assembled, wired and tested to assure safe depend-
able and economical installation and operation.
These units are Category I listed and may be common
vented with another gas appliance as allowed by the
National Fuel Gas Code.
WARRANTY
20-year limited warranty on the heat exchanger.
10-year heat exchanger warranty on commercial applica-
tions.
5-year limited parts warranty.
FEATURES
• Two stage heating operation includes:
- Two stage gas valve
- Two stage inducer operation
- Two speed blower operation
• Provides increased comfort level & very quiet unit oper-
ation
• Adjustable delay timer allows two stage operation with
single stage thermostat
• Compact, easy to install, ideal height 40" cabinet
• Blower-off delay for cooling SEER improvement.
• Easy to connect power/control wiring.
• Built-in, high level self diagnostics with fault code display.
• Low unit amp requirement for easy replacement applica-
tion.
• Integrated control module for reliable, economical opera-
tion.
• Electronic Hot Surface Ignition saves fuel cost with
increased dependability and reliability.
• Induced combustion system with inshot main burners for
quiet, efficient operation.
• 100% shut off main gas valve for extra safety.
• PSC -four speed, direct drive motor with large, quiet
blower.
• 24V, 40 VA control transformer and blower relay supplied
for add-on cooling.
• Hi-tech tubular aluminized steel primary heat exchanger.
• Timed on, adjustable off blower capability for maximum
comfort.
• Solid removable bottom panel allows easy application.
• Easy access from front of unit for cleaning, maintenance
or service.
• Insulated blower compartment for quiet operation.
• Independent door removal for greater durability and ease
of access.
• Low NOx models have been designed to meet specific
code requirements.
• Low NOx models may not be converted to propane unless
screens are removed.

246755-YTG-D-0407
2Unitary Products Group
Annual Fuel Utilization Efficiency (AFUE) numbers are determined in accordance with DOE Test procedures.
Wire size and over current protection must comply with the National Electrical Code (NFPA-70-latest edition) and all local codes.
The furnace shall be installed so that the electrical components are protected from water.
26-3/4
1-1/2
1-1/4
C
20 5/8
5/8
B
24-3/4
FRONT
BOTTOM IMAGE
RETURN END TOP IMAGE
SUPPLY END
D
4” Diameter
LEFT SIDE RIGHT SIDE
20
30-1/8
14-3/4
5-3/8
(VENT CONNECTIONS)
POWER WIRING
7/8” HOLE
2-1/2
ACCESS
WIRING
7/8” K.O.
16
8-3/4
T’STAT WIRING
7/8” K.O.
1-1/8
2-1/4
14
23-1/2
32-1/2
2
13-3/4
GAS INLET
1-1/4 x 2-1/2
4” Diameter
A
40
B3/4
CABINET AND DUCT DIMENSIONS
Models CFM Cabinet Size Cabinet Dimension
ABCD
PT8A12N040UH11 1200 A 14 1/2 13 1/4 11 1/2 10 1/8
PT8A12(N,L)060UH11 1200 A 14 1/2 13 1/4 11 1/2 10 1/8
PT8A12(N,L)080UH11 1200 A 14 1/2 13 1/4 11 1/2 10 1/8
PT8B16(N,L)080UH11 1600 B 17 1/2 16 1/4 14 1/2 11 5/8
PT8C16(N,L)080UH11 1600 C 21 19 3/4 18 13 3/8
PT8B12N100UH11 1200 B 17 1/2 16 1/4 14 1/2 11 5/8
PT8C20(N,L)100UH11 2000 C 21 19 3/4 18 13 3/8
PT8C16N120UH11 1600 C 21 19 3/4 18 13 3/8
PT8C20(N,L)120UH11 2000 C 21 19 3/4 18 13 3/8
RATINGS & PHYSICAL / ELECTRICAL DATA
Models Input/Cabinet
High/Low Output BTU/H High/Low Nominal Airflow Cabinet Width AFUE Blower Blower
Size
MBH MBH CFM In Hp Amps In
PT8A12N040UH11 40/26 32/21 1200 14-1/2 80.0 1/2 7.7 10 x 8
PT8A12(N,L)060UH11 57/42 46/34 1200 14-1/2 80.0 1/2 7.7 10 x 8
PT8A12(N,L)080UH11 80/59 64/48 1200 14 1/2 80.0 1/2 7.7 10 x 8
PT8B16(N,L)080UH11 80/59 64/48 1600 17-1/2 80.0 3/4 11.5 10 x 10
PT8C16(N,L)080UH11 80/59 64/48 1600 21 80.0 3/4 11.5 10 x 10
PT8B12N100UH11 100/65 80/53 1200 17 1/2 80.0 1/2 11.5 10 x 10
PT8C20(N,L)100UH11 100/65 80/53 2000 21 80.0 1 14 11 x 10
PT8C16N120UH11 120/78 96/64 1600 21 80.0 3/4 11.5 11 x 10
PT8C20(N,L)120UH11 120/78 96/64 2000 21 80.0 1 14 11 x 11
Models Input/Cabinet
High/Low Max. Outlet Air Temp Low Fire Air Temp. Rise High Fire Air Temp. Rise Unit
Amps
Max
Over-Current
Protect
Min. wire Size
(awg) @ 75 ft
one way
Operation
Weight
MBH °F °F °F Lbs
PT8A12N040UH11 40/26 150 15-45 20-50 9.0 20 14 107
PT8A12(N,L)060UH11 57/42 160 25-55 35-65 9.0 20 14 107
PT8A12(N,L)080UH11 80/52 175 30-60 40-70 9.0 20 14 117
PT8B16(N,L)080UH11 80/59 160 25-55 25-55 12.0 20 14 129
PT8C16(N,L)080UH11 80/59 160 25-55 25-55 12.0 20 14 130
PT8B12N100UH11 100/65 170 25-55 40-70 12.0 20 14 128
PT8C20(N,L)100UH11 100/65 170 25-55 40-70 12.0 20 14 145
PT8C16N120UH11 120/78 180 25-55 45-75 12.0 20 14 145
PT8C20(N,L)120UH11 120/78 170 25-55 35-65 14.0 20 12 147

246755-YTG-D-0407
Unitary Products Group 3
NOTES:
1. Airflow expressed in standard cubic feet per minute.
2. Motor voltage at 115 V.
BLOWER PERFORMANCE CFM - UPFLOW (WITHOUT FILTER) - BOTTOM RETURN
Models Speed
Bottom Airflow Data (SCFM)
Ext. Static Pressure (in. H2O)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
PT8A12N040UH11
High 1610 1540 1460 1360 1290 1200 1110 1020 900 760
Medium High 1430 1390 1330 1250 1190 1110 1030 940 840 710
Medium Low 1200 1180 1140 1100 1050 1000 930 850 750 620
Low 980 980 960 920 890 840 790 720 620 530
PT8A12(N,L)060UH11
High 1570 1490 1420 1340 1250 1180 1090 990 870 700
Medium High 1410 1360 1310 1250 1190 1090 1020 920 810 650
Medium Low 1200 1180 1150 1100 1050 990 920 830 700 580
Low 960 960 950 930 900 840 800 720 610 500
PT8A12(N,L)080UH11
High 1590 1520 1460 1380 1300 1240 1150 1050 930 800
Medium High 1400 1360 1310 1260 1200 1140 1070 960 860 740
Medium Low 1180 1160 1130 1090 1040 990 920 840 750 640
Low 940 940 940 920 880 840 790 710 630 530
PT8B16(N,L)080UH11 High 1850 1820 1790 1750 1690 1630 1570 1500 1430 1330 Medium 1470 1450 1440 1430 1390 1360 1310 1270 1220 1150
Low 1260 1260 1260 1260 1250 1200 1150 1110 1070 1010
PT8C16(N,L)080UH11 High 2077 1992 1922 1830 1727 1617 1507 1355 1219 1050
Medium 1729 1673 1631 1581 1507 1421 1293 1187 1053 907
Low 1448 1452 1432 1390 1324 1264 1176 1058 939 774
PT8B12N100UH11
High 1700 1620 1560 1480 1390 1300 1210 1110 970 820
Medium High 1430 1400 1350 1300 1230 1160 1080 980 870 710
Medium Low 1180 1170 1160 1130 1080 1030 1000 860 750 510
Low 950 950 930 920 880 840 790 720 620 530
PT8C20(N,L)100UH11
High 2590 2500 2400 2280 2180 2080 1970 1840 1720 1560
Medium High 2180 2120 2040 1980 1900 1810 1720 1600 1480 1320
Medium Low 1750 1720 1680 1640 1580 1520 1440 1350 1220 1060
Low 1450 1420 1380 1330 1300 1240 1160 1070 970 860
PT8C16N120UH11
High 2020 1930 1820 1730 1640 1540 1400 1250 1090 920
Medium 1750 1710 1650 1590 1490 1390 1290 1160 1010 810
Low 1540 1500 1460 1410 1350 1260 1180 1060 910 750
PT8C20(N,L)120UH11
High 2500 2400 2320 2220 2110 2000 1870 1750 1610 1450
Medium High 2130 2070 1990 1920 1840 1760 1660 1570 1460 1320
Medium Low 1700 1680 1650 1620 1560 1500 1410 1320 1210 1070
Low 1420 1390 1360 1330 1290 1240 1150 1060 950 840

246755-YTG-D-0407
4Unitary Products Group
NOTES:
1. Airflow expressed in standard cubic feet per minute.
2. Return air is through side opposite motor (left side).
3. Motor voltage at 115 V.
4. Airflow through motor side return (right side) maybe slightly less than shown above.
BLOWER PERFORMANCE CFM - UPFLOW (WITHOUT FILTER) - LEFT SIDE RETURN
Models Speed
Left Side Airflow Data (SCFM)
Ext. Static Pressure (in. H2O)
0.10.20.30.40.50.60.70.80.91.0
PT8A12N040UH11
High 1810 1730 1660 1570 1480 1390 1300 1200 1090 930
Medium High 1390 1390 1350 1320 1270 1210 1150 1080 970 790
Medium Low 1120 1120 1120 1110 1080 1080 1020 930 830 690
Low 880 910 920 920 910 870 820 740 650 510
PT8A12(N,L)060UH11
High 1770 1690 1630 1560 1490 1390 1290 1190 1050 920
Medium High 1400 1380 1350 1320 1280 1230 1160 1060 930 780
Medium Low 1120 1130 1150 1130 1120 1080 1000 950 790 630
Low 880 900 900 900 880 850 790 730 660 530
PT8A12(N,L)080UH11 High 1790 1720 1670 1590 1530 1450 1350 1260 1140 1000 Medium High 1420 1370 1350 1320 1280 1230 1170 1090 990 840
Medium Low 1080 1120 1110 1100 1080 1040 1000 920 820 690
PT8B16(N,L)080UH11
Low N/A 900 900 890 870 850 800 730 670 560
High 2000 1960 1930 1900 1800 1760 1710 1640 1550 1460
Medium 1440 1440 1430 1420 1400 1380 1340 1300 1220 1150
Low 1220 1230 1230 1230 1200 1190 1170 1160 1110 1050
PT8C16(N,L)080UH11 High 2172 2101 2028 1943 1854 1732 1621 1503 1344 1144
Medium 1640 1633 1626 1584 1518 1480 1378 1276 1125 965
Low 1388 1404 1412 1396 1362 1311 1222 1144 1001 827
PT8B12N100UH11
High 1780 1710 1640 1560 1490 1390 1290 1180 1030 820
Medium High 1430 1410 1370 1340 1280 1220 1140 1040 890 730
Medium Low 1140 1170 1150 1120 1080 1040 970 890 760 630
Low 920 940 950 940 920 890 850 770 660 560
PT8C20(N,L)100UH11
High 2770 2670 2610 2540 2450 2340 2210 2070 1890 1730
Medium High 2120 2060 2030 2000 1950 1880 1810 1720 1580 1370
Medium Low 1690 1660 1630 1610 1560 1490 1420 1350 1240 1070
Low 1390 1370 1330 1290 1250 1200 1120 1010 910 850
PT8C16N120UH11
High 2160 2070 1990 1900 1800 1690 1580 1430 1260 1000
Medium 1760 1720 1690 1630 1560 1480 1390 1250 1080 890
Low 1510 1490 1470 1440 1380 1300 1210 1110 950 780
PT8C20(N,L)120UH11
High 2740 2650 2560 2480 2380 2280 2170 1990 1840 1650
Medium High 2120 2090 2040 2000 1940 1870 1780 1680 1550 1370
Medium Low 1690 1670 1650 1610 1560 1510 1440 1310 1160 1030
Low 1390 1360 1330 1300 1250 1190 1100 1020 940 840

246755-YTG-D-0407
Unitary Products Group 5
HORIZONTAL SIDEWALL VENTING
For applications where vertical venting is not possible, the
only approved method of horizontal venting is the use of an
auxiliary power vent. Approved power venters are Fields
Controls Model SWG-4Y or the appropriate Tjernlund GPAK
model. Follow all application and installation details provided
by the manufacturer of the power vent. This unit may be hori-
zontally vented using 4” (10.2 cm) diameter pipe with a mini-
mum length of 4.5 feet (1.37 m) and a maximum length of
34.5 feet (10.82 m) with up to 4 elbows.
FILTER PERFORMANCE
The airflow capacity data published in the “Blower Perfor-
mance” table listed above represents blower performance
WITHOUT filters. To determine the approximate blower per-
formance of the system, apply the filter drop value for the fil-
ter being used or select an appropriate value from the “Filter
Performance” table shown below.
NOTE: The filter pressure drop values in the “Filter Perfor-
mance” table shown below are typical values for the type of
filter listed and should only be used as a guideline. Actual
pressure drop ratings for each filter type vary between filter
manufacturer.
NOTES:
1. Air velocity through throwaway type filters may not exceed 300
feet per minute. All velocities over this require the use of high
velocity filters.
2. Air flows above 1800 CFM require either return from two sides or
one side plus bottom.
RECOMMENDED FILTER SIZES
Cabinet Size Side (in) Bottom (in)
A 16 x 25 14 x 25
B 16 x 25 16 x 25
C (2) 16 x 25 20 x 25
FILTER PERFORMANCE - PRESSURE DROP INCHES W.C. AND (KPA)
Airflow Range Minimum
Opening Size Filter Type
Disposable Washable Fiber Pleated
CFM in2In W.C. In W.C. In W.C.
0 - 750 230 0.01 0.01 0.15
751 - 1000 330 0.05 0.05 0.20
1001 - 1250 330 0.10 0.10 0.20
1251 - 1500 330 0.10 0.10 0.25
1501 - 1750 380 0.15 0.14 0.30
1751 - 2000 380 0.19 0.18 0.30
2001 & Above 463 0.19 0.18 0.30
UNIT CLEARANCES TO COMBUSTIBLES (ALL DIMENSIONS IN INCHES, AND ALL SURFACES IDENTIFIED WITH THE
UNIT IN AN UPFLOW CONFIGURATION)
Application Top Front Rear Left
Side Right Side Flue Floor/
Bottom Closet Alcove Attic Line
Contact
Upflow 1 6 0 0 3 6 Combustible Yes Yes Yes No
Upflow B-Vent 1 3 0 0 0 1 Combustible Yes Yes Yes No
Horizontal 1 6 0 0 3 6 Combustible No Yes Yes Yes1
Horizontal B-Vent 1 3 0 0 0 1 Combustible No Yes Yes Yes1
1 Line contact only permitted between lines formed by the intersection of the rear panel and side panel (top in horizontal postion) of the furance jacket
and building joists, studs or framing.

246755-YTG-D-0407
6Unitary Products Group
APPLYING FILTER PRESSURE DROP TO
DETERMINE SYSTEM AIRFLOW
To determine the approximate airflow of the unit with a filter in
place, follow the steps below:
1. Select the filter type.
2. Select the number of return air openings or calculate the
return opening size in square inches to determine the
proper filter pressure drop.
3. Determine the External System Static Pressure (ESP)
without the filter.
4. Select a filter pressure drop from the table based upon
the number of return air openings or return air opening
size and add to the ESP from Step 3 to determine the
total system static.
5. If total system static matches a ESP value in the airflow
table (i.e. 0.20 w.c. (50 Pa), 0.60 w.c. (150 Pa), etc,) the
system airflow corresponds to the intersection of the
ESP column and Model/Blower Speed row.
6. If the total system static falls between ESP values in the
table (i.e. 0.58 w.c. (144 Pa), 0.75 w.c. (187 Pa), etc.),
the static pressure may be rounded to the nearest value
in the table determining the airflow using Step 5 or calcu-
late the airflow by using the following example.
Example: For a 60,000 BTUH (17.58 kW) furnace with a bot-
tom return opening and operating on high-speed blower, it is
found that total system static is 0.58” w.c. To determine the
system airflow, complete the following steps:
Obtain the airflow values at 0.50 w.c. (125 Pa) & 0.60 w.c.
(150 Pa) ESP.
Airflow @ 0.50”: 1250 CFM (35.4 m3/min)
Airflow @ 0.60”: 1180 CFM (33.4 m3/min)
Subtract the airflow @ 0.50 w.c. (125 Pa) from the airflow @
0.60 w.c. (150 Pa) to obtain airflow difference.
1180 - 1250 = -70 CFM (-12 m3/min)
Subtract the total system static from 0.50 w.c. (125 Pa) and
divide this difference by the difference in ESP values in the
table, 0.60 w.c. (150 Pa) - 0.50 w.c. (125 Pa), to obtain a
percentage.
(0.58 - 0.50) / (0.60 - 0.50) = 0.8
Multiply percentage by airflow difference to obtain airflow
reduction.
(0.8) X (-70) = -56
Subtract airflow reduction value to airflow @ 0.50 w.c. (125
Pa) to obtain actual airflow @ 0.58 in. w.c. (144 Pa) ESP.
1250 - 56 = 1194
ACCESSORIES
PROPANE (LP) CONVERSION KIT -
1NP0347 - All units
This accessory conversion kit may be used to convert natural
gas (N) units for propane (LP) operation. Conversions must
be made by qualified distributor or dealer personnel.
SIDE RETURN FILTER -
1SR0302 - All Models
1SR0200 - All Models
BOTTOM RETURN FILTER -
1BR0114 or 1BR0214 - For 14-1/2” cabinets
1BR0117 or 1BR0217 - For 17-1/2” cabinets
1BR0121 or 1BR0221 - For 21” cabinets
1BR0124 or 1BR0224 - For 24-1/2” cabinets
INTERNAL FILTER WITH FIBER FILTER -
1HF0801 - All Models
HIGH ALTITUDE PRESSURE SWITCHES -
For installation where the altitude is less than 8,000 feet it is
not required that the pressure switch be changed. For alti-
tudes above 8,000 feet see kits below. Conversion must be
made by qualified distributor or dealer personnel.
1PS0313 - 040, 060, 080, 100 MBH
1PS0314 - 120 MBH
ROOM THERMOSTATS - A wide selection of compatible
thermosets are available to provide optimum performance
and features for any installation.
1 Heat Stage only, manual, mechanical thermostat. Add sub-
base for 1H/1C.
1H/1C, manual change-over electronic non-programmable
thermostat.
1H/1C, auto/manual changeover, electronic programmable,
deluxe 7-day, thermostat.
1H/1C, auto/manual changeover, electronic programmable.
* For the most current accessory information, refer to the
price book or consult factory.

246755-YTG-D-0407
Unitary Products Group 7
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.
Thermostat Chart - AC
AC9 2 Stage Scroll A/C w/2 Stage Furnace, 2 Stage Cooling Ready- PT8/9; (F,L)*8/9T, (G,L)*8/9T, XYG8S-U, XYF8S-U / XYF8S-U*L
THERMOSTAT
*DP22U70124
C
24-Volt Common
Thermostat Installer Setup
Number 15 - Compressor
Protection - must be set to 5
Y2
Second Stage Cool
W2
Second Stage Heat
R
24-Volt Hot
R
24-Volt Hot
C
24-Volt Common
Y1
First Stage Cool
Y
First Stage Cool
C
24-Volt Common
R
24-Volt Hot
Y1
First Stage Cool
C
24-Volt Common C
24-Volt Common C
24-Volt Common
Y1
First Stage Cool
Comfort Alert
Interface
24V HUMIDIFIER
(Optional)
R
24-Volt Hot
G
Fan
R
24-Volt Hot
W2
Second Stage Heat
E/W1
First Stage Heat
W
First Stage Heat
W2
Second Stage Heat
Step 1 of Thermostat User
Configuration Menu must be
set to MS 2
Step 16 of Thermostat User
Configuration Menu must be set
to ON to use Comfort Alert
Features
HM
Humidistat
L
Malfunction Light
E/W1
First Stage Heat
G
Fan
G
Fan
Connection of the "C" Termainal,
24-Volt Common, is optional
when used with batteries
Thermostat Installer Setup
Number 1 - System Type -
must be set to 6 -
2 Heat/2 Cool Conventional
R
24-Volt Hot (Heat XFMR)
W2
Second Stage Heat
RC
24-Volt Hot (Cool XFMR)
E/W1
First Stage Heat
G
Fan
*DN22U00124
THERMOSTAT
Y2
Second Stage Cool
Y2
Second Stage Cool
Y
First Stage Cool
Y2
Second Stage Cool Y2
Second Stage Cool
Y/Y2
Single/Second Stage
Cool
Y1
First Stage Cool
Connection of the "C"
Termainal, 24-Volt Common,
is optional when used with
batteries
2 STAGE PSC
FURNACE CONTROL TWO STAGE
AIR CONDITIONING
*DN22C00124 *PP32U71124
THERMOSTAT
*PP32U72124
THERMOSTAT
Step 1 of Thermostat User
Configuration Menu must be set
to MLTI STG
W/W1
Single/First Stage Heat
C
24-Volt Common
THERMOSTAT
*PP32U70124
Thermostat Installer Setup
Number 0170 - System Type -
must be set to 8 - 2 Heat/2 Cool
Multistage Conventional
Y
First Stage Cool
Y2
Second Stage Cool
R
24-Volt Hot (Heat XFMR)
RC
24-Volt Hot (Cool XFMR)
G
Fan
W2
Second Stage Heat
Connection of the "C"
Termainal, 24-Volt Common,
is optional when used with
batteries
E/W1
First Stage Heat
W2
Second Stage Heat
G
Fan
Connection of the "C" Termainal,
24-Volt Common, is optional
when used with batteries

Subject to change without notice. Printed in U.S.A. 246755-YTG-D-0407
Copyright © by York International Corp. 2007. All rights reserved. Supersedes: 246755-YTG-C-0806
Unitary 5005 Norman
Products York OK
Group Drive 73069
Thermostat Chart - HP
HP23 Two Stage H/P - H*5B, YZE - w/Two Stage Furnace, 2 Stage Cooling Ready - PT8/9, (F,L)*8/9T, (G,L)*8/9T, XYG8S-U, XYF8S-U / XYF8S-U*L
W/031-01996- Series Demand Control; Hot Heat Pump Mode OR Conventional
Thermostat Installer Setup Number 0210 -
External Fossil Fuel Kit - must be set to 0 -
External Fossil Fuel Kit is Controlling
Heat Pump Backup Heat
Change FFuel Jumper on
Heat Pump to ON
Thermostat Installer Setup Number 0190 -
Reversing Valve (O/B) Operation - must be set to 0
- O/B Terminal Energized in Cooling
Step 1 of Thermostat User
Configuration Menu must be
set to Heat Pump 2
Thermostat Installer Setup Number 0200
- Backup Heat Source - must be set to 1 - Heat
Pump Backup Heat Source is Fossil Fuel
24V HUMIDIFIER
(Optional)
Thermostat Installer Setup Number 0170
- System Type - must be set to
12 - 3 Heat/2 Cool Heat Pump
Selection of GAS/ELEC switch on
thermostat not necessary Step 1 of Thermostat User Configuration
Menu must be set to Heat Pump 2 Set W2 Delay on furnace to OFF
HM
Humidistat BSG
Bonnet Sensor
Bonnet Sensor
(Optional) BS
Bonnet Sensor
W2
Second Stage Auxiliary Heat W2
Second Stage Auxiliary Heat
AUX
Auxiliary Heat E/W1
First Stage Auxiliary Heat E/W1
First Stage Auxiliary Heat W
Auxiliary Heat
Y2
Second Stage Heat/Cool Y2
Second Stage Heat/Cool Y2
Second Stage Heat/Cool Y2
Second Stage Heat/Cool
L
Malfunction Light L
Malfunction Light L
Malfunction Light X/L
Malfunction Light
O/B
Reversing Valve O
Reversing Valve–Energized in Cool O
Reversing Valve–Energized in Cool O
Reversing Valve–Energized in Cool
G
Fan G
Fan G
Fan G
Fan
W1 OUT
First Stage Auxiliary Heat Output
DHM
Dehumidistat W2
Second Stage Heat W2 OUT
Second Stage Auxiliary Heat Output
E
Emergency Heat W/W1
Single/First Stage Heat
Y2 OUT
Second Stage Cool Output
R
24-Volt Hot (Heat XFMR) R
24-Volt Hot R
24-Volt Hot R
24-Volt Hot R
24-Volt Hot
RC
24-Volt Hot (Cool XFMR) Y/Y2
Single/Second Stage Cool
C
24-Volt Common C
24-Volt Common
Y
First Stage Heat/Cool Y1
First Stage Heat/Cool Y1
First Stage Heat/Cool Y1
First Stage Cool Y1
First Stage Heat/Cool
*PP32U72124
C
24-Volt Common C
24-Volt Common C
24-Volt Common
TWO STAGE
HEAT PUMP
*PP32U70124 *DN22H00124 *PP32U71124
THERMOSTAT THERMOSTAT THERMOSTAT PSC-2 STAGE
COOLING READY
FURNACE CONTROL
*DP22U70124