036-21560-002 Rev. A (1204)
Heating Air Conditioning
TECHNICAL GUIDE
MODELS: GY9
GAS-FIRED
CONDENSING / HIGH EFFICIENCY
DOWNFLOW/HORIZONTAL FURNACES
91% AFUE
NATURAL GAS
40 - 120 MBH INPUT
EFFICIENCY
RATING
CERTIFIED
ISO 9001
Certified Quality
Management System
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.
R
DESCRIPTION
These Category IV, highly efficient, compact, condensing
type furnaces are designed for residential and commercial
installations in a basement, closet, alcove, recreation room or
garage where the ambient temperature is above 32°F, or
higher. They may be either side wall or thru-roof vented using
approved plastic type combustion air and vent piping. All
units are factory assembled, wired and tested to assure
dependable and economical installation and operation.
WARRANTY
Lifetime limited warranty on the heat exchanger.
10-year warranty on the heat exchanger in commercial
applications.
5-year limited parts warranty.
FEATURES
• 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 application.
• Integrated control module for reliable, economical operation.
• May be installed as either two-pipe (sealed combustion)
or single pipe vent (using indoor combustion air)
• Top intake & vent connection allows downflow installation in narrow locations.
• Electronic Hot Surface Ignition saves fuel cost with
increased dependability and reliability.
• Induced combustion system with inshot main burners for
quiet, efficient operation.
• No special vent termination kit required.
• 100% shut off main gas valve for extra safety.
• PSC -four speed, direct drive motor with large, quiet
blower.
• 24V , 40 V A control transformer and blower relay supplied
for add-on cooling.
• Hi-tech tubular aluminized steel primary heat exchanger.
• Secondary (condensing) heat exchanger of 29-4C highgrade stainless steel.
• Timed on, adjustable off blower capability for maximum
comfort.
• Easy access from front of unit for cleaning, maintenance
or service.
• Protection from intake, exhaust or condensate blockage.
• High velocity filters and filter racks provided for field
installation.
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
036-21560-002 Rev. A (1204)
28-1/2
26-1/2
21-5/8
T’STAT WIRING
7/8” K.O.
HORIZONTAL
CONDENSATE
DRAIN 2” K.O.
7/8” JUNCTION
BOX HOLE
1-1/2” GAS
PIPE ENTRY
CONDENSATE
DRAIN 7/8” K.O.
24-5/8
1-1/4
18-1/2
11-11/16
7-1/2
19-1/4
C
BOTTOM IMAGE
SUPPLY END
21-7/8
A
D
2-1/4
40
29
21-9/16
18-1/2
23-5/8
B
20
23-1/4
TOP IMAGE
RETURN END
9-1/8
5/8
8-1/2
5/8
29
1-1/4
26-1/2
21-15/16
T’STAT WIRING
7/8” K.O.
HORIZONTAL
CONDENSATE
DRAIN 2” K.O.
7/8” JUNCTION
BOX HOLE
1-1/2” GAS
PIPE ENTRY
CONDENSATE
DRAIN 7/8” K.O.
25-3/8
Model Number CFM
Cabinet
Size
A (in.) B (in.) C (in.) D (in.)
Cabinet Dimension
GY9S040A12DH11 1200 A 14-1/2 13-1/4 12 1-3/4
GY9S060B12DH11 1200 B 17-1/2 16-1/4 15 1-3/4
GY9S080B12DH11 1200 B 17-1/2 16-1/4 15 1-3/4
GY9S080C16DH11 1600 C 21 19-3/4 18-1/2 2-1/8
GY9S100C16DH11 1600 C 21 19-3/4 18-1/2 2-1/8
GY9S100C20DH11 2000 C 21 19-3/4 18-1/2 2-1/8
GY9S120D20DH11 2000 D 24-1/2 23-1/4 22 2-1/2
COMBUSTION AIR SUPPLY AND VENT PIPING
MAXIMUM ELBOWS AND VENT LENGTHS
Models Input
BTUH
Pipe Size
Inches
1 2 3 4 5 6 7 8
40,000 1-1/2 25 20 15 10 N/A N/A N/A N/A 5
40,000 2 60555045403020N/A 5
40,000 3 8580757065605040 20
60,000 1-1/2 15 10 N/A N/A N/A N/A N/A N/A 5
60,000 2 6055504540352515 5
60,000 3 8580757065605040 20
80,000/1200 2 60 55 50 45 40 35 25 15 5
80,000/1200 3 85 80 75 70 65 60 50 40 20
80,000/1600 2 60 55 50 45 40 35 25 15 5
80,000/1600 3 85 80 75 70 65 60 50 40 20
100,000 2 25 20 15 10 N/A N/A N/A N/A 5
100,000 3 80 75 70 65 60 55 45 35 5
120,000 3 55 50 45 40 35 25 15 N/A 5
Three elbows (two in vent pipe and one in the air intake pipe) are already accounted for and need not be included in the elbow count
from the Table above.
Maximum Number of Elbows*
Minimum
Length
2 Unitary Products Group
ELECTRICAL AND PERFORMANCE DATA
ROOM
THERMOSTAT
FURNACE
CONTROL
CONDENSING
UNIT
TO AIR CONDITIONER
CONTROLS
R
W
G
Y
C
R
W
G
Y
C
036-21560-002 Rev. A (1204)
MODEL
NUMBER
Input Output
Nominal
Airflow
MBH MBH CFM In. °F
Cabinet
Width
Cabinet
Size
Air Temp.
Rise
APPROX.
OPER. WEIGHT
TOP RETURN
FILTER IN.
GY9S040A12DH11 40 37 1200 14-1/2 A 35 - 65 120 (2) 14 x 20
GY9S060B12DH11 60 55 1200 17-1/2 B 35 - 65 130 (2) 14 x 20
GY9S080B12DH11 80 74 1200 17-1/2 B 35 - 65 145 (2) 14 x 20
GY9S080C16DH11 80 74 1600 21 C 35 - 65 155 (2) 14 x 20
GY9S100C16DH11 100 93 1600 21 C 35 - 65 170 (2) 14 x 20
GY9S100C20DH11 100 93 2000 21 C 35 - 65 175 (2) 20 x 20
GY9S120D20DH11 120 112 2000 24-1/2 D 35 - 65 180 (2) 20 x 20
MODEL
NUMBER
Max.
AFUE
Outlet
Blower
Air Temp.
%°FHPAmpsIn.Amps
Blower
Size
Tot al Unit
Max.
Over-current
Protect
Min. Wire Size
(awg) @ 75 ft.
One Way
GY9S040A12DH11 91 165 1/2 7.0 11 x 8 9 20 14
GY9S060B12DH11 91 165 1/2 7.0 11 x 8 9 20 14
GY9S080B12DH11 91 165 1/2 7.0 11 x 8 9 20 14
GY9S080C16DH11 91 165 3/4 10.2 11 x 10 12 20 14
GY9S100C16DH11 91 165 3/4 10.2 11 x 10 12 20 14
GY9S100C20DH11 91 165 1 12.7 11 x 11 14 20 12
GY9S120D20DH11 91 165 1 12.7 11 x 11 14 20 12
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.
* Wire size and overcurrent protection must comply with the National Electric Code.
NOTES:
1. For altitudes above 2000 ft. reduce capacity 4% for each 1000 ft. above sea level.
2. Wire size based on copper conductors, 60°C, 3% voltage drop.
3. Continuous return air temperature must not be below 55°F.
4. All filters must be high velocity cleanable type.
FIELD WIRING DIAGRAMS POWER WIRING
BLK
WHT
GRN
Unitary Products Group 3
BLK (HOT)
WHT (NEUTRAL)
GRD
NOMINAL
115 VOLT
036-21560-002 Rev. A (1204)
BLOWER PERFORMANCE CFM
AIRFLOW WITH TOP RETURN
MODEL
NUMBER
GY9S040A12DH11
GY9S060B12DH11
GY9S080B12DH11
GY9S080C16DH11
GY9S100C16DH11
GY9S100C20DH11
GY9S120D20DH11
* ESP (External Static Pressure) .5" WG is at furnace outlet ahead of cooling coil.
NOTES:
1. Airflow expressed in standard cubic fee t per mi nute (CFM) and in cubic meters per minute (m3/min).
2. Motor voltage at 115 V.
3. NR = Operation at this static pressure is not recommended.
Speed
Tap
High 1635 1590 1535 1480 1415 1340 1280 1185 NR NR
Medium High 1179 1170 1160 1140 1135 1098 1048 1026 NR NR
Medium Low 969 967 967 959 938 905 860 802 NR NR
Low 774 753 745 726 698 674 652 612 NR NR
High
Medium High
Medium Low
Low
High
Medium High
Medium Low
Low
High
Medium High
Medium Low
Low
High
Medium High
Medium Low
Low
High
Medium High
Medium Low 1626 1581 1531 1488 1418 1363 1291 1225 1123 964
Low
High 2520 2432 2353 2251 2152 2042 1947 1815 1701 1525
Medium High
Medium Low 1586 1545 1501 1457 1407 1351 1287 1216 1081 926
Low
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
CFM CFM CFM CFM CFM CFM CFM CFM CFM CFM
1687 1652 1631 1595 1557 1511 1456 1382 1313 1211
1193 1183 1173 1162 1142 1115 1076 1036 982 950
933 933 921 911 902 872 825 793 771 712
752 745 731 718 698 652 602 580 536 496
1686 1658 1623 1572 1534 1465 1391 1305 1202 1091
1257 1223 1218 1203 1177 1142 1094 1026 939 874
977 982 976 955 934 899 843 791 738 686
775 777 757 733 698 663 627 584 549 490
2071 2026 1981 1935 1864 1796 1713 1625 1532 1401
1583 1590 1569 1554 1532 1502 1457 1409 1327 1221
1256 1275 1275 1288 1275 1265 1232 1187 1126 1023
937 939 936 945 942 936 912 874 810 726
1996 1961 1938 1896 1836 1779 1707 1625 1531 1399
1449 1480 1495 1488 1488 1449 1417 1368 1299 1208
1167 1192 1192 1187 1202 1192 1182 1140 1097 1018
932 900 871 840 805 761 710 663 641 623
2404 2320 2225 2138 2034 1924 1816 1692 1559 1422
2018 1955 1883 1815 1750 1670 1586 1497 1394 1246
1336 1291 1249 1205 1155 1091 1018 951 884 759
2018 1979 1945 1911 1863 1779 1705 1599 1493 1353
1321 1266 1213 1163 1111 1071 987 864 763 700
EXTERNAL STATIC PRESSURE, INCHES W.C. (kPa)
FILTER PERFORMANCE
The airflow capacity data published in the “Blower Performance” table listed above represents blower performance
WITHOUT filters. To determine the approximate blower performance of the system, apply the filter drop value for the fil-
NOTE: The filter pressure drop values in the “Filter Performance” table shown 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.
ter being used or select an appropriate value from the “Filter
Performance” table shown.
4 Unitary Products Group
FILTER PERFORMANCE - PRESSURE DROP INCHES W.C. AND (KPA)
036-21560-002 Rev. A (1204)
AIRFLOW RANGE
CFM
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
*. Washable fibers are the type supplied with furnace (if supplied).
MINIMUM
OPENING SIZE
2
in
DISPOSABLE
In W.C. In W.C. In W.C..
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. Determine the External System Static Pressure (ESP)
without the filter.
3. 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.
4. If total system static matches a ESP value in the airflow
table (i.e. 0.20, 0.60, etc,) the system airflow corresponds to the intersection of the ESP column and Model/
Blower Speed row .
5. 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.
FILTER TYPE
WASHABLE FIBER
*
Example: For a 130,000 Btuh furnace 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": 2125 CFM
Airflow @ 0.60": 2035 CFM
2. Subtract the airflow @ 0.50" from the airflow @ 0.60" to
obtain airflow difference.
2035 - 2125 = -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.
2125 - 72 = 2053
PLEATED
UNIT CLEARANCES TO COMBUSTIBLES
APPLICATION TOP FRONT REAR
DOWNFLOW130000
HORIZONTAL030110COMBUSTIBLENOYESYES
*. Special floor base or air conditioning coil required for use on combustible floor.
†. Line contact only permitted between lines formed by the intersection of the rear panel and side panel (top in horizontal position) of
the furnace jacket and building joists, studs or framing.
LEFT
SIDE
RIGHT
SIDE
FLUE
FLOOR/
BOTTOM
*
1"
CLOSET ALCOVE ATTIC
YES YES YES NO
LINE
CONTACT
†
YES
Unitary Products Group 5
036-21560-002 Rev. A (1204)
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.
CONCENTRIC VENT TERMINATION -
1CT0302 (2")
1CT0303 (3")
HORIZONTAL SIDEWALL VENT TERMINATION -
1HT0901 (2")
For use through rooftop, sidewall. Allows combustion air to
enter and exhaust to exit through single common hole. Eliminates unslightly elbows for a cleaner installation.
COMBUSTIBLE FLOOR BASE -
1CB0314 - 14 1/2” Cabinet
1CB0317 - 17 1/2” Cabinet
1CB0321 - 21” Cabinet
1CB0324 - 24” Cabinet
COIL TRANSITION KIT -
1TK0914 - 14” Furnace
1TK0917 - 17” Furnace
1TK0921 - 21” Furnace
1TK0924 - 24” Furnace
Required in downflow applications when using G*FD series
coils.
CONDENSATE NEUTRALIZER KIT - 1NK0301
Neutralizer cartidge has a 1/2" plastic tube fittings for installation in the drain line. Calcium carbonate refill media is also
avaiable from the Source 1 Parts (p/n 026-30228-000).
HIGH ALTITUDE PRESSURE SWITCHES -
These accessory kits may be used to convert units for high
altitude operation. Conversion must be made by qualified distributor or dealer personnel.
HIGH ALTITUDE PRESSURE SWITCH APPLICATION
Input (MBH)
DF/HZ Models
40/1200 1PS0904
60/1200 1PS0901
80/1200 1PS0902
80/1600 1PS0903
100/1600 1PS0901
100/2000 1PS0901
120/2000 1PS0901
NOTE: For high altitude conversion, an orifice change may
also be required. See Application Instructions.
4,500 To 10,000 Ft.
FIELD INSTALLED ACCESSORIES - ELECTRICAL
MODEL NO. DESCRIPTION
2ET03700324
2TH13700424
2TB17700424
2ET03701024
2ET03700024
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.
SUBBASE (24V) - One-stage heat/cool. Manual changeover, integral
System Switch: Cool-Off-Heat. Fan Switch: Auto-On. Power Stealing
THERMOSTAT- Electronic Non-Programmable.
One-stage Heat/Cool. Manual Changeover, Integral Subbase.
System Switch: Cool-Off-Heat. Fan Switch: Auto-On.
subbase. System Switch: Cool-Off-Heat. Fan Switch: Auto-On.
THERMOSTAT- Electronic 7 Day Programmable.
One Heat/One Cool. Auto Changeover, Integral Subbase.
(TS) THERMOSTAT- Electronic 7 Day Programmable.
Two Heat/Two Cool. Auto Changeover, Integral Sub-base.
System Switch: Cool-Off-Heat. Fan Switch: Auto-On.
6 Unitary Products Group
NOTES
036-21560-002 Rev. A (1204)
Unitary Products Group 7
NOTES
Subject to change without notice. Printed in U.S.A. 036-21560-002 Rev. A (1204)
Copyright © by York International Corp. 2004. All rights reserved. Supersedes: 036-21560-001 Rev. A (0204)
Unitary 5005 Norman
Products York OK
Group Drive 73069
Loading...