York AFFINITY PS8 Owner's manual

TECHNICAL GUIDE
AFFINITY
MODELS: PS8
GAS-FIRED
HIGH EFFICIENCY SINGLE STAGE
DOWNFLOW FURNACES
80% AFUE
NATURAL GAS
40 - 130 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
This product was manufactured
in a plant whose quality system
is certified/registered as being
in conformity with ISO 9001.
036-21610-002 Rev. A (1104)
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
DESCRIPTION
These high efficiency, dedicated downflow compact units
employ induced combustion, reliable hot surface ignition and
high heat transfer tubular heat exchangers.
These furnaces are designed for residential installation in a
closet, attic or garage and are ideal for commercial applica-
tions. All units are factory assembled, wired and tested to
assure safe dependable 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 ANSI Z223.1 (latest edition).
WARRANTY
20-year limited warranty on the heat exchanger.
10-year heat exchanger warranty on commercial applica-
tions.
5-year limited parts warranty.
FEATURES
• Dedicated downflow models may be easily applied with-
out any field conversion
• Top vent connection allows installation in narrow loca-
tions
• Electronic hot surface ignition with high reliability and
dependability
• 100% shut off main gas valve for added safety
• High velocity filter provided for field installation
• "Diamond Tough" hot surface igniter
• High quality inducer motor for quiet operation
• Standard terminals for controlling humidifiers & EAC's
• 40 VA control transformer, fuse protected
• Easy to connect power and control wiring
• Efficiency ratings of 80 AFUE attained by using tubular
heat exchangers
• Cooling relay standard for easy installation of add-on
cooling
• Blower off-delay for cooling SEER improvement
• Multi-speed PSC, direct-drive blower motors to match
cooling requirements
• Adjustable fan-off settings to eliminate "cold-blow"
• Compact 40-in height allows installation in small space
confines
• All models are propane convertible

036-21610-002 Rev. A (1104)
2Unitary Products Group
3/4
FRONT LEFT SIDE RIGHT SIDE
GAS INLET
1-1/4" X 2-1/2"
D
(Vent Connection)
5-3/4
2-1/2
ALT. GAS INLET
1-1/4" X 2-1/2"
T'STAT WIRING
7/8" K.O.
31-1/8
28-1/2
20
B
40
A
TOP IMAGE
Vent Connection
(vent size)
D
20
B
BOTTOM IMAGE
1-1/8
20
FRONT
1-1/8
Power
Wiring
7/8" K.O.
A
C
7-3/8
FRONT
E
5
F
1-7/8
CABINET AND DUCT DIMENSIONS
Models Cabinet
Width In. Cabinet Size Cabinet Dimension
ABCDEF
PS8A12N040DN11 14-1/2 A 14 1/2 13 1/4 10 1/8 4.0 10 1/8 3 3/4
PS8A12N060DN11 14-1/2 A 14 1/2 13 1/4 10 1/8 4.0 10 1/8 3 3/4
PS8A12N080DN11 14-1/2 A 14 1/2 13 1/4 10 1/8 4.0 10 1/8 3 3/4
PS8B16N080DN11 17 1/2 B 17 1/2 16 1/4 13 1/8 4.0 11 5/8 3 3/4
PS8B12N100DN11 17 1/2 B 17 1/2 16 1/4 13 1/8 4.0 11 5/8 3 3/4
PS8C20N100DN11 21 C 21 19 3/4 16 5/8 4.0 13 3/8 3 3/4
PS8C16N115DN11 21 C 21 19 3/4 16 5/8 4.0 13 3/8 3 3/4
PS8C20N115DN11 21 C 21 19 3/4 16 5/8 4.0 13 3/8 3 3/4
PS8D20N130DN11 24-1/2 D 24 1/2 23 1/4 20 1/8 4.0 15 1/8 3 3/4
HORIZONTAL SIDEWALL VENTING CLEARANCES - MUST USE FIELDS CONTROL MODELS SWG-4Y OR TJERENLAND
MODEL GPAK-JT FIELD SUPPLIED POWER VENTING KITS
Models
Horizontal Vent Length Ft with 4 Elbows
Pipe Size Min. Vent Length Max. Vent Length
Inches Feet Feet
PS8A12N040DN11 4 4.5 34.5
PS8A12N060DN11 4 4.5 34.5
PS8A12N080DN11 4 4.5 34.5
PS8B16N080DN11 4 4.5 34.5
PS8B12N100DN11 4 4.5 34.5
PS8C20N100DN11 4 4.5 34.5
PS8C16N115DN11 4 4.5 34.5
PS8C20N115DN11 4 4.5 34.5
PS8D20N130DN11 4 4.5 34.5

036-21610-002 Rev. A (1104)
Unitary Products Group 3
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.
Annual Fuel Utilization Efficiency (AFUE) numbers are determined in accordance with DOE Test procedures.
* ESP (External Static Pressure) .5" WG is at furnace outlet ahead of cooling coil.
NOTES:
1. All filters must be high velocity cleanable type.
RATINGS & PHYSICAL / ELECTRICAL DATA
Models Input
MBH Output MBH Nominal CFM AFUE Air Temp.
Rise °F
PS8A12N040DN11 40 32 1200 80.0 20-50
PS8A12N060DN11 57 48 1200 80.0 25-55
PS8A12N080DN11 80 64 1200 80.0 35-65
PS8B16N080DN11 80 64 1600 80.0 25-55
PS8B12N100DN11 100 80 1200 80.0 40-70
PS8C20N100DN11 100 80 2000 80.0 25-55
PS8C16N115DN11 115 92 1600 80.0 35-65
PS8C20N115DN11 115 92 2000 80.0 30-60
PS8D20N130DN11 130 104 2000 80.0 40-70
Models Max. Outlet
Air Temp °F
Blower Blower
Size In. Total Unit Amps
Max
Over-current
protect
Min.
Wire Size (awg)
@ 75 ft. one way
Operation
WGT. LBS
Hp Amps
PS8A12N040DN11 150 1/3 6.2 10 x 8 9.0 15 14 100
PS8A12N060DN11 155 1/3 6.2 10 x 8 9.0 15 14 110
PS8A12N080DN11 165 1/3 6.2 10 x 8 9.0 15 14 120
PS8B16N080DN11 160 3/4 11.0 11 x10 12.0 15 14 130
PS8B12N100DN11 170 1/2 7.0 10 x 8 12.0 15 14 125
PS8C20N100DN11 155 1 12.2 11 x 10 14.0 20 12 140
PS8C16N115DN11 165 3/4 11.0 11 x 10 12.0 15 14 150
PS8C20N115DN11 160 1 12.2 11 x 10 14.0 20 12 150
PS8D20N130DN11 170 1 12.2 11 x 10 14.0 20 12 160
FILTER SIZES
Models Cabinet Size Top Return Filter (in)
PS8A12N040DN11 A (2) 14 x 20
PS8A12N060DN11 A (2) 14 x 20
PS8A12N080DN11 A (2) 14 x 20
PS8B16N080DN11 B (2) 14 x 20
PS8B12N100DN11 B (2) 14 x 20
PS8C20N100DN11 C (2) 14 x 20
PS8C16N115DN11 C (2) 14 x 20
PS8C20N115DN11 C (2) 14 x 20
PS8D20N130DN11 D (2) 14 x 20

036-21610-002 Rev. A (1104)
4Unitary Products Group
NOTES:
1. Airflow expressed in standard cubic feet per minute (CFM).
2. Motor voltage at 115 V.
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.
BLOWER PERFORMANCE CFM - (WITHOUT FILTER)
MODELS Speed
Airflow Data
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
PS8A12N040DN11
High 1620 1590 1480 1400 1310 1240 1140 1040 910 760
Medium High 1430 1390 1340 1280 1220 1140 1050 960 820 710
Medium Low 1210 1210 1190 1200 1100 1020 940 850 730 620
Low 980 980 970 950 920 870 810 720 620 520
PS8A12N060DN11
High 1500 1470 1390 1320 1240 1170 1070 960 830 700
Medium High 1380 1340 1280 1210 1150 1060 970 870 760 610
Medium Low 1220 1200 1160 1110 1050 990 910 820 700 600
Low 960 950 940 920 890 840 770 710 630 530
PS8A12N080DN11
High 1550 1480 1410 1330 1250 1150 1050 940 810 700
Medium High 1400 1360 1290 1220 1150 1060 970 860 730 590
Medium Low 1230 1210 1170 1120 1060 990 910 810 680 560
Low 980 970 960 930 890 830 760 680 550 450
PS8B16N080DN11 High 2070 2000 1930 1850 1770 1670 1580 1470 1360 1250 Medium 1650 1630 1610 1560 1490 1420 1360 1270 1170 1040
Low 1410 1400 1370 1340 1320 1270 1210 1140 1050 950
PS8B12N100DN11
High 1710 1650 1580 1510 1420 1330 1260 1160 1090 930
Medium High 1480 1440 1380 1330 1270 1180 1090 980 790 630
Medium Low 1240 1230 1200 1170 1110 1030 950 850 710 600
Low 980 980 980 970 930 890 800 720 630 530
PS8C20N100DN11
High 2400 2330 2240 2130 2030 1960 1820 1710 1570 1390
Medium High 2130 2070 2000 1940 1840 1760 1660 1540 1420 1230
Medium Low 1800 1760 1730 1650 1580 1510 1430 1300 1200 1030
Low 1480 1450 1390 1360 1300 1240 1180 1080 960 860
PS8C16N115DN11 High 2210 2160 2100 2030 1940 1850 1750 1640 1520 1400 Medium 1640 1640 1620 1590 1530 1500 1430 1360 1270 1160
Low 1410 1410 1370 1360 1300 1260 1210 1150 1090 1010
PS8C20N115DN11
High 2400 2310 2220 2120 2010 1910 1800 1660 1520 1350
Medium High 2090 2030 1970 1880 1790 1730 1640 1520 1370 1190
Medium Low 1720 1690 1650 1600 1550 1460 1370 1270 1150 980
Low 1440 1430 1400 1340 1280 1220 1140 1040 930 830
PS8D20N130DN11
High 2530 2420 2340 2250 2110 2020 1920 1750 1590 1410
Medium High 2190 2150 2070 1970 1910 1790 1680 1550 1400 1250
Medium Low 1800 1760 1720 1680 1610 1490 1410 1300 1160 1040
Low 1450 1440 1410 1360 1310 1250 1170 1080 980 860
Line Wiring Connection
BLK
WHT
GRN
BLK (HOT)
WHT (NEUTRAL)
GRN
NOMINAL
120 VOLT

036-21610-002 Rev. A (1104)
Unitary Products Group 5
* Washable Fiber are the type supplied with furnace (if supplied).
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. 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
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, 0.60, etc,) the system airflow corre-
sponds 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, 0.75, etc.), the static pressure may be
rounded to the nearest value in the table determining the
airflow using Step 5 or calculate the airflow by using the
following example.
Example: For a 130,000 Btuh furnace with 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:
1. Obtain the airflow values at 0.50" & 0.60" ESP.
Airflow @ 0.50": 2110 CFM
Airflow @ 0.60": 2020 CFM
2. Subtract the airflow @ 0.60" from the airflow @ 0.5" to
obtain airflow difference.
2020 - 2110 = -90 CFM
3. Subtract the total system static from 0.50" and divide this
difference by the difference in ESP values in the table,
0.60" - 0.50", to obtain a percentage.
(0.58 - 0.50) / (0.60 - 0.50) = 0.8
4. Multiply percentage by airflow difference to obtain airflow
reduction.
(0.8)x(-90) = -72
5. Subract airflow reduction value to airflow @ 0.50" to
obtain actual airflow @ 0.58" ESP.
2110 - 72 = 2038
FILTER PERFORMANCE - PRESSURE DROP INCHES W.C.
Airflow Range Minimum
Opening Size
Filter Type
Disposable WASHABLE
FIBER* Pleated
1 Opening 1 Opening 1 Opening 1 Opening
CFM In³ inwc inwc inwc
0 - 750 230 0.01 0.01 0.15
751 - 1000 330 0.05 0.05 0.2
1001 - 1250 330 0.1 0.1 0.2
1251 - 1500 330 0.1 0.1 0.25
1501 - 1750 380 0.15 0.14 0.3
1751 - 2000 380 0.19 0.18 0.3
2001 & Above 463 0.19 0.18 0.3
UNIT CLEARANCES TO COMBUSTIBLES
APPLICATION TOP FRONT REAR LEFT SIDE RIGHT SIDE FLUE FLOOR/
BOTTOM CLOSET ALCOVE ATTIC LINE
CONTACT
In. In. In. In. In. In.
DOWNFLOW 1 6 0 0 3 6 11YES YES YES NO
DOWNFLOW B-VENT 1 3 0 0 0 1 11YES YES YES NO
1 Special floor base or air conditioning coil required for use on combustible floor.

036-21610-002 Rev. A (1104)
6Unitary Products Group
ACCESSORIES
PROPANE
CONVERSION KIT -- 1NP0347 (32, 64 & 80 MBH)
1NP0348 (48, 92,& 104 MBH)
This accessory conversion kit may be used to convert natural
gas units for propane (LP) operation at altitudes up to 2,000
ft. Conversion should be made by qualified distributor or
dealer personnel.
COMBUSTIBLE FLOOR BASE
1CB0314 = For 14-1/4" cabinet models
1CB0317 = For 17-1/2" cabinet models
1CB0321 = For 21" cabinet models
1CB0324 = For 24-1/2" cabinet models
HIGH ALTITUDE PRESSURE SWITCH
These accessory kits may be used to convert units for high
altitude operation. Conversion must be made by qualified dis-
tributor or dealer personnel.
HIGH PRESSURE SWITCH
Input
(MBH) Output (MBH) 2,000 to 5,500 Ft. >5,500 to 10,000 Ft.
40 32 1PS0301 1PS0301
57 48 1PS0301 1PS0301
80 64 1PS0302 1PS0302
100 80 1PS0312 1PS0311
115 92 1PS0312 1PS0311
130 104 1PS0312 1PS0311
FIELD INSTALLED ACCESSORIES - ELECTRICAL
MODEL NO. DESCRIPTION USED WITH
2TB17700424 SUBBASE (24V) -One-stage Heat / Cool. Manual changeover.
System Switch: Cool-Off-Heat. Fan Switch: Auto-On. ALL MODELS
2TH13700424 THERMOSTAT-One-stage Heat. Deluxe 24V with heat only subbase, does not include fan switch. NOTE: For one-stage cool or one-stage
heat/cool, must be used with subbase 2TB17700424. ALL MODELS
2ET03700324 THERMOSTAT- Hardwired, 1 Heat / 1 Cool. Manual changeover, Sys-
tem Switch: Cool-Off-Heat. Fan Switch: Auto-On. ALL MODELS
2ET03701224 THERMOSTAT-PowerStealing,1Heat /1 Cool. Manualchangeover,
System Switch: Cool-Off-Heat. Fan Switch: Auto-On. ALL MODELS
2ET03700124 THERMOSTAT-Hardwired, 1 Heat / 1Cool. Programmable, Auto
changeover. System Switch: Cool-Off-Heat. Fan Switch: Auto-On. ALL MODELS
2ET03701024 THERMOSTAT-Power Stealing, 1 Heat / 1 Cool. Programmable, Auto
changeover. System Switch:Cool-Off-Heat. Fan Switch: Auto-On. ALL MODELS
6TT03701124 TALKING THERMOSTAT 1Heat/1Cool ALL MODELS

036-21610-002 Rev. A (1104)
Unitary Products Group 7
NOTES

Subject to change without notice. Printed in U.S.A. 036-21610-002 Rev. A (1104)
Copyright © by York International Corp. 2004. All rights reserved. Supersedes: 036-21610-001 Rev. A (0804)
Unitary 5005 Norman
Products York OK
Group Drive 73069
NOTES