Table of Contents
SingleStage
YES NOE
Keep
This page for future reference
YES
Safety Rules
Location and Clearances
Installation
FrozenWater Pipe Hazard
Typical Downflow Installation
Installation Requirements
Typical Upflow Installation
Dimensions & Clearances
Leveling
Requirements
Air Openings and Connecting Ducts
Combustion Ventilation Air
Unusually Tight Construction
Venting and Combustion Air Check
Example
Ventilation Air
Single Pipe N9MP1 Models
For Two Pipe Installation
Vent and Combustion Air Piping
Direct Vent N9MP2 Models
Contaminated Combustion Air
TocompensateforoxygenburnedSee.Confined Space Installa
Piping Insulation Guidelines
Vent and Combustion Air Piping Guidelines
Vent Termination Clearances
Sizing Combustion Air and Vent Pipe
N9MP1 & *9MPD Models
Carbon Monoxide POISONING, Fire and Explosion Hazard
440O1102004
Clearance Description
15cmforappliances10,OOOBTUH3kW,12
CondensateDrain Trap
Condensate Drain Trap Freeze Protection
Upflow Installations Top Vent
Upflow Installations Top Vent See Figure
Switch
UpflowInstallationsVentthru LeftSide
Upflow Installations Vent thru Left Side See Figure
Side View
Only
All ModelsVentthru RightSide
All Models Vent thru Right Side See Figure
Inlet 4=
Downflow Left Side Vent and Trap SeeFigure
PVC 3/4
Downflow Right Side Vent and Trap
Downflow Right Side Vent and Trap See Figure
Coupling & Clamps 112ID Drain Hose On Some
Horizontal Left Thru Top
Horizontal Left-Thru Top See
Horizontal Left-Side Vent See Figure
Horizontal Left-Side Vent
16ID Rubber Tube\\
Horizontal Right thru Top
Yellowor black
Relief Tube Extension
HorizontalRight-SideVent
Horizontal Right Side Vent SeeFigure
Open Tee
Connecting Tee Trap to Condensate Trap and Main Drain Line
Connecting Vent and Combustion Air Piping
Tee Trap
Vent Pipe Connection
Connecting Vent Pipes and Termination
Proper Sealing Procedure for Combustion
Fire Hazard
Vertical Termination
Using Exterior Risers
Horizontal Termination
Vent Termination Shielding
Sidewall Inlet Vent and Exhaust Air Termination
Multi Vent Termination Clearances
Concentric Vent and Combustion Air Sidewall Termination
CmbustincncentricRoof -AirTerminationventand
Gas Supply Pressure
Manifold Gas Pressure Adjustment
Supply Pressure
IAIternate Input Ratings, USA only
For the 50,000, 75,000, 100,000 and 125,000 Btuh Models
Natural
Pressure
Tai
Electrical SHOCK, Fire or Explosion Hazard
High Altitude Air Pressure Switch
General Derating Rules
Changing Orifices
Low Pressure
Gas Piping Requirements
Manual shut- off
Valve
Power SupplyWiring
Electrical Wiring
Installations
Humidifier/Electronic Air Cleaner
Reduced Furnacelife Hazard
Fan Delay DIP Switch Settings
Fan Timer Connections
Mountedto eithertheleftorright
Sizing
Installation
Ductwork and Filter
Insulation
Combustible Floor Installation
Filter Installation using Optional Filter Rack
Downflow Furnace Installation
Downflow applications, unless installing on non
Furnace Subbase
SubbasesforCombustibleFloorsDimensions
FloorDimensions
Gas SupplyPressure
Checks and Adjustments
Adjust Pilot Burner
Startup
Changing Blower Speed
Temperature Rise Check
Heating and Continuous BlowerSpeed Same
Reduced Furnace Life Hazard
Furnace Maintenance
FIRE, EXPLOSION, or Carbon Monoxide Hazards
Heating Request with Gas Supply Line Shut Off
Circulating Fan G Request
Heating W Request
OFF
Gas Valve Diagnostic Codes See Figure
Typical Gas Valve Honeywell
Than
Honeywell SV9541M Smart Valve Sequence of Operation
LED
Honeywell SV9541M Smart Valve Trouble shooting
Flashes Flashes + I Flash
Indicates
Concentric Vent Termination Kit #
Concentric Termination
Vent Termination Clearances
LED INDICATESCHECK/REPAIR
Requiredtocompletetheinstallation
TicalterminationispreferredFieldsuppliedpipeandfittingsare
Table for N9MP2 Models 50,000 & 80,000 Btuh Furnaces
Rain Cap to Vent Pipe Assembly
Concentric Vent and Combustion Air Side Termination
Roof Overhang
25-22-02
Concentric Vent Sidewall Attachment
Air Elbow
Denotes Brand
N9MP2075B12B1 N9MP2080F16B1
N9MP2100F14B1 N9MP2100J20B1 N9MP2125J20B1
25-23-30
General
Model Specifications
Specifications N9MP1
Specifications N9MP2
Gas & Ignition
Specifications 9MPD
BlowerData
For 100 Models Ton 19 & 22314 Units
For 050 Models 3 Ton Units
For 075 Models 3 Ton Units
For 080 Models 4 Ton 19 & 22314 Units
Data
Ilttl
Neutral t
UI I BKw
25-23-95
125J
Key Description Part
Functional
100J 125J
14B 20B
Non-Functional
1GB
12B 16B 14B
No. Non-Functional
16B 14B 20B 12B
Part not Illustrated
Key Description
N9MP1 N9MP2 Osob
NAHF002LP
100J20B 128L20B
9MPD
Number 080F12B 075F12B 080J16B 100J14B
Capacitor,7.SMfd.,370V
Number 050F12B 078F12B 080J16B 100J14B 100J2OB
Parts *gMPD
KeyDescription No.Non- Functional
125L20B
Number 050F12B 075F12B
Part GMPD
Non- Functional
080J16B
050F12B 075F12B 080J16B 100J14B
1013816 + Order from Service Parts 44001
Non- Functional Number
IOOJ20B