Haier GE NF96DS User manual

31-5000729 Rev. 0 10-22 GEA
NF96DS
96% Downow Single Stage
Constant Torque Motor Gas Furnace
Service
Manual
READ CAREFULLY.
KEEP THESE INSTRUCTIONS.

Page 2 31-5000729 Rev. 0
SERVICE MANUAL
NF96DS Gas Furnace - Downow
Table of Contents
Technical Specications -NF96DS ..............................2
Parts Arrangement.......................................................5
Electrical......................................................................6
Placement & Installation............................................19
Joint Cementing Procedure.......................................20
Venting Practices.......................................................21
Vent Piping Guidelines ..............................................22
Condensate Piping ....................................................35
Start-Up .....................................................................39
Heating System Service Checks ...............................40
Typical Operating Characteristics..............................44
Maintenance..............................................................45
Wiring Diagram..........................................................48
Troubleshooting: Heating Sequence of Operation ....49
Troubleshooting: Heating Sequence of Operation
(Continued)................................................................50
Troubleshooting: Cooling Sequence of Operation.....51
Troubleshooting: Continuous Fan / Accessories
Sequence of Operation..............................................52
This is a safety alert symbol and should never be ignored. When you see this symbol on labels or in manuals, be alert to
the potential for personal injury or death.
Electric shock hazard.
Can cause injury or death. Before attempting
to perform any service or maintenance,
turn the electrical power to unit OFF at
disconnect switch(es). Unit may have
multiple power supplies.
WARNING
As with any mechanical equipment, contact with sharp
sheet metal edges can result in personal injury. Take
care while handling this equipment and wear gloves
and protective clothing.
CAUTION
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional HVAC installer (or
equivalent), service agency or the gas supplier.
WARNING

Page 3
31-5000729 Rev. 0
Technical Specications -NF96DS
PHYSICAL AND ELECTRICAL DATA
Model Input
(Btuh)
Output
(Btuh)
AFUE
(ICS)
Nominal
Cooling
Capacity
Gas
Inlet
(in.)
Volts/
Hz/
Phase
Max.
Time
Delay
Breaker
or Fuse
Nominal
F.L.A.
Trans.
(V.A.)
Approx.
Shipping
Weight
(lbs.)
Downow
NF96D045S3B 44,000 43,000 96.0% 3 Ton 1/2 120-60-1 15 6.8 40 131
NF96D070S4B 66,000 64,000 96.0% 4 Ton 1/2 120-60-1 15 8.4 40 144
NF96D090S4C 88,000 86,000 96.0% 4 Ton 1/2 120-60-1 15 8.4 40 160
Note: For vent length and clearances to combustibles, please reference installation instructions.
MODEL NUMBER GUIDE
MAJOR/MINOR REVISION
CABINET WIDTH
B - 17.5
C - 21
NOMINAL CFM
3 - 1200 CFM
4 - 1600 CFM
5 - 2000 CFM
DESIGN VARIANT
S - ECM, 1-STAGE
BRAND
N - GE
PRODUCT
F - FURNACE, GAS
AFUE
96 = 96% EFFICIENCY
APPLICATION
U - UPFLOW/HORIZONTAL, STANDARD EMISSION
D - DOWNFLOW, STANDARD EMISSION
HEATING INPUT (1000 BTU/HR)
45, 70, 90, 110
NNFF9696 DDSS55CCXXXX
110110

Page 4 31-5000729 Rev. 0
BLOWER PERFORMANCE DATA
NF96D045S3B Performance (Less Filter)
External
Static
Pressure
in. w.c.
Air Volume / Watts at Di󰀨erent Blower Speeds
Bottom Return Air, Side Return Air with Optional Return Air Base, Return Air from Both Sides or Return Air from
Bottom and One Side.
High Medium-High Medium Medium-Low Low
cfm watts cfm watts cfm watts cfm watts cfm watts
0.00 1455 370 1275 255 1175 190 920 90 865 85
0.10 1425 375 1250 260 1145 200 885 100 830 90
0.20 1395 380 1225 265 1115 210 850 110 795 95
0.30 1365 385 1195 275 1085 220 815 115 750 105
0.40 1325 385 1170 290 1045 230 770 130 700 110
0.50 1245 370 1130 300 1010 240 720 135 660 120
0.60 1180 360 1095 305 970 245 675 140 605 125
0.70 1100 330 1045 310 935 255 615 150 560 130
0.80 980 295 1000 290 895 260 580 155 505 135
NF96D070S4B Performance (Less Filter)
External
Static
Pressure
in. w.c.
Air Volume / Watts at Di󰀨erent Blower Speeds
Bottom Return Air, Side Return Air with Optional Return Air Base, Return Air from Both Sides or Return Air from
Bottom and One Side.
High Medium-High Medium Medium-Low Low
cfm watts cfm watts cfm watts cfm watts cfm watts
0.00 1720 510 1545 355 1340 235 1240 190 1020 95
0.10 1700 530 1505 360 1310 245 1195 200 955 110
0.20 1675 545 1465 370 1275 255 1155 205 895 115
0.30 1640 555 1420 380 1230 270 1120 215 835 125
0.40 1600 565 1380 395 1180 280 1060 225 785 135
0.50 1560 570 1340 400 1140 290 1015 235 715 145
0.60 1500 565 1300 420 1095 305 965 245 640 150
0.70 1405 540 1255 430 1040 315 910 255 585 160
0.80 1325 515 1215 445 990 320 865 265 525 170
NF96D090S4C Performance (Less Filter)
External
Static
Pressure
in. w.c.
Air Volume / Watts at Di󰀨erent Blower Speeds
Bottom Return Air, Side Return Air with Optional Return Air Base, Return Air from Both Sides or Return Air from
Bottom and One Side.
High Medium-High Medium Medium-Low Low
cfm watts cfm watts cfm watts cfm watts cfm watts
0.00 1760 435 1555 280 1405 230 1315 175 1190 135
0.10 1730 445 1515 300 1375 240 1280 190 1150 145
0.20 1700 455 1475 315 1350 250 1245 205 1115 155
0.30 1670 465 1445 330 1310 265 1200 220 1070 165
0.40 1640 480 1410 340 1265 275 1160 230 1025 175
0.50 1590 485 1380 345 1225 285 1125 235 985 185
0.60 1530 465 1340 360 1195 295 1085 245 945 195
0.70 1445 450 1315 370 1150 305 1065 255 895 200
0.80 1350 420 1280 375 1115 315 1015 265 860 210

Page 5
31-5000729 Rev. 0
ACCESSORIES
System Accessory Kit Number Description
Natural to LP Kit
11K50 1-Stage
11K45 High Altitude 1-Stage
Downow Combustible Flooring Base
11M60 17.5" B Width
11M61 21.0" C Width
Flush Mount Termination
(90% Furnaces Only) (US Only) 51W11 2" & 3" Vent Version
Concentric Vent Kit
(90% Furnaces Only) (US Only)
71M80 1-1/2" Vent Version
69M29 2" Vent Version
60L46 3" Vent Version
Concentric Vent Kit
(90% Furnaces Only) (Canada Only)
44W92 1-1/2" and 2" Vent Version
44W93 3" Vent Version
Twinning Kit 16W72 Constant Torque Gas Furnace Twinning Kit
Note: For vent length and clearances to combustibles, please reference installation instructions.