ICP N8MPN Installation Instructions Manual

Hide thumbs Also See for N8MPN:

User's information manual (10 pages)

User's information manual (10 pages)

Installation instructions manual (44 pages)

Table of Contents

Quick Links

Need help?

Do you have a question about the N8MPN and is the answer not in the manual?

Questions and answers

Summary of Contents for ICP N8MPN

Page 1: Table Of Contents
N8MPN & N8MPL *8MPN & *8MPL * Denotes Brands (C, H, T) See section 5 for Category I definition. SAFETY REQUIREMENTS Recognize safety information. This is the safety--alert symbol . When you see this symbol on the furnace and in instruction manuals be alert to the potential for personal injury.
Page 2 START- -UP CHECK SHEET (Keep this page for future reference) Recommended, but not required. Checklist DOES NOT apply in Canada Dealer Name: Address: Business Card Here City, State(Province), Zip or Postal Code: Phone: Owner Name: Manual Gas Shut--Off Upstream of Furnace/Drip--Leg? Address: City, State(Province), Zip or Postal Code: Drip--Leg Upstream of Gas Valve?
Page 3: Safe Installation Requirements
1. Safe Installation Requirements WARNING · This furnace is not to be used for temporary heating of buildings or structures under construction. See “2. Installation, Item 10”. FIRE, EXPLOSION, AND ASPHIXIATION HAZARD · This furnace is NOT approved for installation in mo- Improper adjustment, alteration,...
Page 4: Installation
Frozen Water Pipe Hazard If your furnace remains off for an extended time, the pipes in your home could freeze and burst, resulting in serious water damage. WARNING If the structure will be unattended during cold weather you should take these precautions. FROZEN AND BURST WATER PIPE HAZARD Turn off the water supply to the structure and drain the water FaiIure to protect against the risk of freezing could...
Page 5 Dimensions and Clearances (N8MPN/L) Figure 1 MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS FOR ALL FURNACES...
Page 6: Furnace Installation
Figure 2 Dimensions and Clearances (*8MPN/L Models) MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS FOR ALL UNITS REAR FRONT (combustion air openings 3² in furnace and structure) Required For Service 24² ALL SIDES Of SUPPLY PLENUM 1² 30² Min. SIDES VENT Single--Wall Vent 6²...
Page 7 The horizontal furnaces may be installed directly on combustible Typical Upflow Installation Figure 3 wood flooring or supports, however, it is recommended for further fire protection cement board or sheet metal is placed between the furnace and the combustible wood floor and extend 12² beyond SUPPLY the front of the furnace louver door.
Page 8: Side Venting
When drilling the 2 holes make sure to keep the switch and tubing far enough away from the burners or hot sur- N8MPN/L, C8MPN/L, H8MPN/L faces as to not melt the hose, switch, or wires. To prevent possible kinking of the pressure switch hose, trim the hose to remove ex- 1.
Page 9: Combustion & Ventilation Air
4. Replace venter gasket (part # 1013540, if needed) to venter Venter Gasket assembly with adhesive in the same location as the old one. Figure 7 5. Rotate venter assembly 90° right or left from original location depending on venting configurations. Entry 6.
Page 10 Requirements air when two permanent openings, one inlet and one outlet, are used. 1. Provide the space with sufficient air for proper combustion and One opening MUST commence within 12² of the floor ventilation of flue gases using horizontal or vertical ducts or and the second opening MUST commence within 12²...
Page 11 Indoor Combustion Air The Standard Method may be used, if the space has no less vol- ume than 50 cubic feet per 1,000 BTUH of the maximum input rat- Standard and Known- - Air- - Infiltration Rate Methods ings for all gas appliances installed in the space. The standard method permits indoor air to be used for combustion and ventila- ã...
Page 12: Gas Vent Installation
5. Gas Vent Installation WARNING 8. Rigidly support all horizontal portions of the venting system ev- ery 6¢ or less using proper clamps and metal straps to prevent sagging and ensure there is no movement after installation. CARBON MONOXIDE POISONING, FIRE AND EXPLOSION HAZARD.
Page 13 Venting and Combustion Air Check Figure 9 Vent Check NOTE: When an existing Category I furnace is removed or re- placed, the original venting system may no longer be sized to prop- erly vent the attached appliances, and to make sure there is Vent Pipe Draft Hood adequate combustion air for all appliances, MAKE THE FOL-...
Page 14: Horizontal Venting
6. Horizontal Venting Category I Furnaces With External Power Vent Termination Venters Venting Through a Non- - Combustible and Combustible Wall In order to maintain a Category I classification of fan--assisted fur- Consult External Power Venter manufacturer instructions. naces when vented horizontally with sidewall termination, a power venter is REQUIRED to maintain a negative pressure in the vent- Select the power venter to match the Btuh input of the furnace be- ing system.
Page 15 Other than Direct Vent Termination Clearance Figure 10 25--24--65--2 AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITED VENT TERMINAL Item Clearance Descriptions Canadian Installation (1) U.S. Installation (2) Clearance above grade, veranda, porch, deck, balcony, or 12² (30cm) # 12²...
Page 16: Masonry Chimney Venting
7. Masonry Chimney Venting Chimney Inspection If a clay tile--lined masonry chimney is being used and it is exposed to the outdoors below the roof line, relining might be required. All masonry chimney construction must conform to Standard Chimneys shall conform to the Standard for Chimneys, Fire- ANSI/NFPA 211--2003 and to any state or local codes applicable.
Page 17 Figure 11 CHIMNEY INSPECTION CHART Foradditional requirementsreferto the National Fuel GasCode NFPA 54/ANSI Z223.1--2002 and ANSI/NFPA 211--2003 Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances in the U.S.A. or to the Canadian Installation Code CSA B149.1--00 in Canada. Crown condition: Rebuild Missing mortar crown...
Page 18 If the inspection of a previously used tile--lined chimney: Exterior Masonry Chimney, Shows signs of vent gas condensation, the chimney should FAN+NAT Installations with be relined in accordance with local codes and the authority Type- -B Double- -Wall Vent Connectors having jurisdiction.
Page 19: Gas Supply And Piping
Vent dampers on any appliance connected to the common vent can cause condensation and corrosion in the venting system. Do not use vent dampers on appliances common vented with this fur- nace. 8. Gas Supply and Piping WARNING WARNING CARBON MONOXIDE POISONING, FIRE AND FIRE HAZARD EXPLOSION HAZARD.
Page 20: Failure To Follow Safety Warnings
Right Side Gas Supply Piping (N8MP) Figure 15 Gas Valve with Elbows (N8MP) Gas line can be installed directly to the gas valve through the hole provided in the right side of the cabinet. See Figure 12 Left Side Gas Supply Piping (N8MP) Two(2) 90°...
Page 21: Damage
WARNING Piping with Street Elbows Assemble the elbows so that the outlet of one(1) elbow is 90° FIRE OR EXPLOSION HAZARD. from the inlet of the other. The elbows should be tight enough Failure to properly install metal gas connector could to be leak proof.
Page 22: Electrical Wiring
J- Box Relocation Electrical Connections Figure 19 N8MPN and N8MPL Models The J--box is installed in blower compartment on left side of casing. An alternate J--box location on right side can be used. Remove bag containing two hole plugs and two self--tapping screws from loose parts bag in blower compartment.
Page 23: Ductwork And Filter (Upflow/Horizontal)
Fan Control Figure 20 Fan Timer Connections The fan control is preset at the factory with ON delay of 30 seconds in the heating mode. The blower OFF timing is preset at 140 sec- onds. If desired, the fan OFF delay can be reset to obtain the lon- gest delay times while still maintaining comfort levels.
Page 24 CAUTION · Installation of locking-type dampers is recommended in all branches, or in individual ducts to balance system’s air flows. RISK OF REDUCED FURNACE LIFE · Non--combustible, flexible duct connectors are recom- mended for return and supply connections to furnace. ailure to follow these Caution may result in premature furnace component failure.
Page 25: Ductwork And Filter (Downflow)
Figure 25 Bottom Mounted Filter Figure 23 Side Return Filter Rack Center Clip side--to--side 9² 25--24--18--1 Filter 25--23--05--4a Figure 26 Filter Clip Construction ² 3² Figure 24 Filters Installed on Two Sides ² Using Two Filter Racks 26 Ga. Galvanized Steel ²...
Page 26 WARNING Sub- - Bases for Combustible Floors - - Furnace Only Note: When using the subbase for combustible floors, the dis- BURN HAZARD. charge air duct flanges on the furnace MUST be broken down to provide proper fit up to the subbase. Use duct pliers to bend the The vent may be hot.
Page 27 Exploded View of Sub- -Base for Exploded View of Sub- -Base for Figure 27 Figure 29 Furnace ONLY Downflow Cased Coil Plenum Plenum 2² ² ² ² 2² ² ² ² 1² ² ² ² 1² ² ² ² Combustible Combustible Floor Base Floor Base...
Page 28 removing the knockout panel in the furnace base. Return air con- · Ductwork installed in attic or exposed to outside tempera- nection through the side(s) or back of the furnace is NOT allowed. tures requires a minimum of 2² of insulation with outdoor type vapor barrier.
Page 29: Checks And Adjustments
NOTE: If filters are only suitable for heating application, ad- Figure 32 Top Mounted Internal Filter vise homeowner that filter size may need to be increased if air conditioning is added. 9² Addition Of Air Conditioning When a refrigeration coil is used in conjunction with this furnace, it must be installed on the discharge side of the furnace to avoid con- densation on the heat exchanger.
Page 30 Orifice Sizing Turn gas ON. Operate the furnace by using a jumper wire on the R to W thermostat connections on the fan board. Remove manifold pressure adjustment screw cover on fur- NOTE: Factory sized orifices for natural and LP gas are listed in nace gas control valve.
Page 31 MANIFOLD PRESSURE AND ORIFICE SIZE FOR HIGH ALTITUDE APPLICATIONS NATURAL GAS MANIFOLD PRESSURE (² ² ² ² w.c.) Table 7 Table 7 MEAN ELEVATION FEET ABOVE SEA LEVEL 0 to 2001 to 3001 to 4001 to 5001 to 6001 to 7001 to HEATING 2000...
Page 32: Main Burner Flame Check
Measure from face of orifice to the YES for setting air temperature rise. back side of the manifold. +1.5 Blower Motor Speed Taps for 29.3 --1.1 N8MPN/L and *8MPN/L Model Sizes 1.21² M LO M HI Model Sizes 1.11² BLUE...
Page 33: Furnace Maintenance
Changing Blower Speed If the same speed must be used for both heating and cooling, remove the undesired motor speed lead from the “Heat” or WARNING “Cool” terminal and connect that lead to the open terminal at “Unused Motor Lead” location or tape off. Attach a jumper between the “Heat”...
Page 34: Sequence Of Operation & Diagnostics
14. Sequence of Operation & Diagnostics The following is the normal operating sequence. Cooling (Y) Request: 24 VAC signals applied to Y & G terminals of EFT (electronic fan timer) control. · Cool motor speed is energized after 5 second Cool Fan On Delay time. Y &...
Page 35 Gas Control Valve Diagnostic Codes (See Figure 40) = Control not powered Heartbeat = Normal Operation (Standby or call for heat) 1 Flash = Not used 2 Flashes = Low Pressure switch closed when should be open 3 Flashes = Low Pressure switch circuit was still sensed as open 30 seconds after the inducer was energized. System is in 5 minute delay mode, with inducer off.
Page 36 441 01 2611 06...
Page 37 Save This Manual For Future Reference Models N8MPN050B12A1 N8MPL050B12A1 N8MPN075B12A1 N8MPL075B12A1 N8MPN075F16A1 N8MPL075F16A1 N8MPN100F14A1 N8MPL100F20A1 N8MPN100F20A1 N8MPL100J22A1 N8MPN100J22A1 N8MPL125J20A1 N8MPN125J20A1 N8MPL125J22A1 N8MPN125J22A1 *8MPN050B12A1 *8MPL050B12A1 *8MPN075B12A1 *8MPL075B12A1 *8MPN075F16A1 *8MPL075F16A1 *8MPN100F14A1 *8MPL100F20A1 *8MPN100F20A1 *8MPL100J20A1 *8MPN100J20A1 *8MPL125J20A1 *8MPN125J20A1 *8MPN150J20A1 * Denotes Brand International Comfort Products, LLC Lewisburg, TN 37091 Ò...
Page 38: Specifications
Model Specifications Manufacturers Number (Mfr No - - See Rating Plate) ALL Models (N8MPN) Specifications N8MPN N8MPN N8MPN N8MPN N8MPN N8MPN N8MPN N8MPN 050B12 075B12 075F16 100F14 100F20 100J22 125J20 125J22 General Input (Btuh) 50,000 75,000 75,000 100,000 100,000 100,000...
Page 39 Manufacturers Number (Mfr No - - See Rating Plate) ALL Models (N8MPL) Specifications N8MPL N8MPL N8MPL N8MPL N8MPL N8MPL N8MPL 050B12 075B12 075F16 100F20 100J22 125J20 125J22 General Input (Btuh) 50,000 75,000 75,000 100,000 100,000 125,000 125,000 Output (Btuh) 40,000 60,000 60,000 80,000...
Page 40 Manufacturers Number (Mfr No - - See Rating Plate) ALL Models (*8MPN) Specifications *8MPN *8MPN *8MPN *8MPN *8MPN *8MPN *8MPN *8MPN 050B12 075B12 075F16 100F14 100F20 100J20 125J20 150J20 General Input (Btuh) 50,000 75,000 75,000 100,000 100,000 100,000 125,000 150,000 Output (Btuh) 40,000 60,000...
Page 41 Manufacturers Number (Mfr No - - See Rating Plate) ALL Models (*8MPL) Specifications *8MPL *8MPL *8MPL *8MPL *8MPL *8MPL 050B12 075B12 075F16 100F20 100J20 125J20 General Input (Btuh) 50,000 75,000 75,000 100,000 100,000 125,000 Output (Btuh) 40,000 60,000 60,000 81,000 81,000 101,000 °...
Page 42 NOTE: 075F16 -- Reduce airflow by 5% if bottom return only 100F20 -- Reduce airflow by 10% if bottom return only NOTE: N8MPN/L125J22 -- Reduce airflow by 10% if bottom return only 125J20 -- Reduce airflow by 5% if bottom return only...
Page 43 Wiring Diagram N8MPN/L, *8MPN/L 441 01 2611 06...
Page 44 Parts for N8MPN/L 25--24--32a--1 441 01 2611 06...
Page 45 Replacement Parts - N8MPN (Natural Gas) Models -- N8MPN050B12A1, N8MPN075B12A1, N8MPN075F16A1, N8MPN100F14A1, N8MPN100F20A1, N8MPN100J22A1, N8MPN125J20A1, N8MPN125J22A1 Replacement part supplied will be current active part. For parts not listed, consult place of purchase. N8MPN Description Description Part Part 050B 075B 075F...
Page 46 Replacement Parts - N8MPN (Natural Gas) Models -- N8MPN050B12A1, N8MPN075B12A1, N8MPN075F16A1, N8MPN100F14A1, N8MPN100F20A1, N8MPN100J22A1, N8MPN125J20A1, N8MPN125J22A1 Replacement part supplied will be current active part. For parts not listed, consult place of purchase. N8MPN Description Description Part Part 050B 075B 075F...
Page 47 Replacement Parts - N8MPN (Natural Gas) Models -- N8MPN050B12A1, N8MPN075B12A1, N8MPN075F16A1, N8MPN100F14A1, N8MPN100F20A1, N8MPN100J22A1, N8MPN125J20A1, N8MPN125J22A1 Replacement part supplied will be current active part. For parts not listed, consult place of purchase. N8MPN Description Description Part Part 050B 075B 075F...
Page 48 Replacement Parts - N8MPL (Natural Gas) Models -- N8MPL050B12A1, N8MPL075B12A1, N8MPL075F16A1, N8MPL100F20A1, N8MPL100J22A1, N8MPL125J20A1, N8MPL125J22A1 Replacement part supplied will be current active part. For parts not listed, consult place of purchase. N8MPL Description Description Part Part Functional Number 050B12A1 075B12A1 075F16A1 100F20A1 100J22A1 125J20A1...
Page 49 Replacement Parts - N8MPL (Natural Gas) Models -- N8MPL050B12A1, N8MPL075B12A1, N8MPL075F16A1, N8MPL100F20A1, N8MPL100J20A1, N8MPL100J22A1, N8MPL125J20A1, N8MPL125J22A1 Replacement part supplied will be current active part. For parts not listed, consult place of purchase. N8MPL Description Description Part Part 050B 075B 075F 100F 100J 125J...
Page 50 Replacement Parts - N8MPL (Natural Gas) Models -- N8MPL050B12A1, N8MPL075B12A1, N8MPL075F16A1, N8MPL100F20A1, N8MPL100J20A1, N8MPL100J22A1, N8MPL125J20A1, N8MPL125J22A1 Replacement part supplied will be current active part. For parts not listed, consult place of purchase. N8MPL Description Description Part Part 050B 075B 075F 100F 100J 100J...
Page 51 Parts for *8MPN/L 25--23--49a 441 01 2611 06...
Page 52 Replacement Parts - *8MPN (Natural Gas) Models -- *8MPN050B12A1, *8MPN075B12A1, *8MPN075F16A1, *8MPN100F14A1, *8MPN100F20A1, *8MPN100J20A1, *8MPN125J20A1, *8MPN150J20A1 Replacement part supplied will be current active part. For parts not listed, consult place of purchase. *8MPN Description Description Part Part 050B 075B 075F 100F 100F 100J...
Page 53 Replacement Parts - *8MPN (Natural Gas) Models -- *8MPN050B12A1, *8MPN075B12A1, *8MPN075F16A1, *8MPN100F14A1, *8MPN100F20A1, *8MPN100J20A1, *8MPN125J20A1, *8MPN150J20A1 Replacement part supplied will be current active part. For parts not listed, consult place of purchase. *8MPN Description Description Part Part 050B 075B 075F 100F 100F 100J...
Page 54 Replacement Parts - *8MPN (Natural Gas) Models -- *8MPN050B12A1, *8MPN075B12A1, *8MPN075F16A1, *8MPN100F14A1, *8MPN100F20A1, *8MPN100J20A1, *8MPN125J20A1, *8MPN150J20A1 Replacement part supplied will be current active part. For parts not listed, consult place of purchase. *8MPN Description Description Part Part 050B 075B 075F 100F 100F 100J...
Page 55 Replacement Parts - *8MPL (Natural Gas) Models -- *8MPL050B12A1, *8MPL075B12A1, *8MPL075F16A1, *8MPL100F20A1, *8MPL100J20A1, *8MPL125J20A1 Replacement part supplied will be current active part. For parts not listed, consult place of purchase. *8MPL Description Description Part Part 050B 075B 075F 100F 100J 125J Functional Number...
Page 56 Replacement Parts - *8MPL (Natural Gas) Models -- *8MPL050B12A1, *8MPL075B12A1, *8MPL075F16A1, *8MPL100F20A1, *8MPL100J20A1, *8MPL125J20A1 Replacement part supplied will be current active part. For parts not listed, consult place of purchase. *8MPL Description Description Part Part 050B *075B 075F 100F 100J 125J Functional Number...
Page 57 Replacement Parts - *8MPL (Natural Gas) Models -- *8MPL050B12A1, *8MPL075B12A1, *8MPL075F16A1, *8MPL100F20A1, *8MPL100J20A1, *8MPL125J20A1 Replacement part supplied will be current active part. For parts not listed, consult place of purchase. *8MPL Description Description Part Part 050B *075B 075F 100F 100J 125J Functional Number...

This manual is also suitable for:

N8mpl H8mpn T8mpn C8mpl H8mpl T8mpl ... Show all

ICP N8MPN Installation Instructions Manual

Quick Links

Table of Contents

Need help?

Questions and answers

Related Manuals for ICP N8MPN

Summary of Contents for ICP N8MPN

This manual is also suitable for:

Table of Contents