ICP NTG3/FBF Series Installation Instructions Manual
ICP NTG3/FBF Series Installation Instructions Manual

ICP NTG3/FBF Series Installation Instructions Manual

Upflow/horizontal series
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NTG3/FBF
NTN3/NBF(NOxModels)
Upflow/Horizontal
Series
SAFETY
REQUIREMENTS
/X
Recognize safety information.
This is the safety-alert
symbol _.
When you see this symbol on the furnace and in instructions
manuals be alert to the potential for personal injury.
Understand the signal words DANGER,
WARNING, or CAUTION.
These words are used with the safety-alert
symbol.
DANGER
identifies the most serious hazards, those that will result in severe personal injury or death. WARNING signifies a hazard that could
result in personal injury or death. CAUTION is used to identify unsafe practices that could result in minor personal injury or prod uct and
property damage.
Installing and servicing heating equipment can be hazardous due to gas and electrical components.
Only trained and qualified person-
nel should install, repair, or service heating equipment.
Untrained service personnel can perform basic maintenance functions such as cleaning and replacing air filters. All other operations
must be performed by trained service personnel.
When working on heating equipment,
observe precautions in the literature, on tags,
and on labels attached to or shipped with the unit and other safety precautions that may apply.
Follow all safety codes. In the United States, follow all safety codes including the current edition National Fuel Gas Code (NFGC) NFPA
No. 54/ANStZ223.1.
In Canada, refer to the current edition of the National Standard Canada CAN/CGA-B149.1
- and .2-M91 Natural
Gas and Propane Installation Codes (NSCNGPI C). Wear safety glasses and work gloves. Have fire extinguisher available during start-
up and adjustment
procedures and service calls.
These instructions cover minimum requirements
and conform to existing national standards and safety codes.
In some instances,
these instructions exceed certain local codes and ordinances,
especially those that may not have kept up with changing residential
construction
practices.
We require these instructions as a minimum for a safe installation.
Design Certified
byAGA
Manufactured
by:
International
Comfort
Products
Corporation
(USA)
Lewisburg,
TN USA 37091
Table of Contents
1. Installation...............................
2
4
3. GasVent Installation .......................
6
4. Horizontal V enting .........................
7
5.GasSupplyand Piping ......................
8
6. MasonryChimney Venting ...................
8
7. Gas Supply and Piping ...................
8. ElectricalWiring ........................
9. Ductworkand Filter ......................
10. ChecksandAdjustments.................
11. FurnaceMaintenance ...................
9
12
13
14
16
This furnace is not designed for use in mobile
homes, trailers or recreational
vehicles. Such
use could result in property damage, bodily in-
jury and/or death.
LP1
7/29/98
441 01 2601 04
Replaces 441 01 2601 03 (6/98)

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Summary of Contents for ICP NTG3/FBF Series

  • Page 1: Table Of Contents

    NTG3/FBF NTN3/NBF(NOxModels) Upflow/Horizontal Series SAFETY REQUIREMENTS Recognize safety information. This is the safety-alert symbol _. When you see this symbol on the furnace and in instructions manuals be alert to the potential for personal injury. Understand the signal words DANGER, WARNING, or CAUTION.
  • Page 2: Installation

    1. Installation The U.S. Consumer Product Safety Commission recom- mends that users of gas-burning appliances install carbon Installation or repairs made unqualified monoxide detectors. There can be various sources of car- persons can result in hazards to you and others. bon monoxide in a building or dwelling.
  • Page 3 Have someone check t hestructure frequently during c old Location and Clearances weather tomake sureit iswarm enough t oprevent pipes from freezing. Suggest they call q ualified service agency, if If furnace is a replacement, it is usually best to install the furnace required.
  • Page 4 should be attached to the furnace with sheet metal screws and to Install the vent pipes as short as practical. (See Gas Vent Installation section). the rafters or joists with bolts. The preferred method is to use an angle iron frame bolted to the rafters or joists. Do NOT install furnace directly on carpeting, tile or other combustible material other than wood flooring.
  • Page 5: Combustion& Ventilationair

    2. Combustion& VentilationAir Confined Space Installation NOTE: A confined space is defined as an area with less than 50 Poison carbon monoxide gas hazard. cubic feet(1.4m 3) per 1,000 BTUH input rating for all gas ap- pliances installed in the area. Use methods described here to provide combus- tion and ventilation air.
  • Page 6 Outside Air (This is ONLY a guide. Subject to codes of country having jurisdiction.) This installation NOT approved in Canada Gas Vent . GableVent,/ - Optional InletAir (1) I ' ' So%',t e.t 11 4 ut'°t'irl'' II Soffit Vent Outlet i N iii Inlet ..
  • Page 7: Gasvent Installation

    Ventilation Air Unusually tight construction is defined as: Construction with Walls and ceilings exposed to the outside have a continuous, sealed vapor barrier. Openings are gasketed or sealed and Some provincial codes and local municipalities require ventilation Doors and openable windows are weather stripped and or make-up air be brought into the conditioned space as replace- ment air.
  • Page 8: Horizontalventing

    Use the United States National Fuel Gas Code or NFGC Tables Vent Check to size the chimney or vent. Dedicated venting of one fan as= sisted furnace into any masonry chimney is restricted.The chimney must first be lined with either type B vent sized in accor- dance with a listed single wall, metal lining system, sized in accor- Vent Pipe "-_ Draft Hood...
  • Page 9: Gas Supplyand Piping

    7. Install draft h ood assy. tocasing u sing f our s crews previously 11.Locate f urnace's main limit. Detach wire with insulated termi- setaside, nal f rom oneside ofmain limit. 12. Route wire harness assy. from vent limit switch to main limit. Attach f ield connect box todraft h ood a ssy.
  • Page 10 decreased 2%(Natural) or 4%(LP) for each 1000' above sea lev- Example el. This may be accomplished by a simple adjustment of manifold pressure or an orifice change, or a combination of a pressure ad- Natural Gas No. of Seconds Time Per Cubic BTU Per BTU Content Per Hour...
  • Page 11 Reassemble all parts in reverse order as removed. Be sure to Changing Orifices engage the main burner orifices in the proper opening in the burners. After disconnecting power and gas supply to the furnace, re- move the access door, exposing the burner compartment. After reassembling, turn gas on and check all joints for gas leaks using a soapy solution.
  • Page 12: Electricalwiring

    a. If test pressure does not exceed PSIG, isolate the fur- 1/2" nace by closing its individual manual shutoff valve. b. If test pressure exceeds 1/2" PSlG, the furnace and its indi- Fire or explosion hazard. vidual shutoff valve must be disconnected from the gas sup- Gas connector must be properly installed, cannot ply system.
  • Page 13: Ductworkand Filter

    CAUTION NOTE: The humidifier will be powered when the furnace is fired and the circulating air blower comes on. The electronic air cleaner Do NOT exceed 115V/0.8 amp maximum current load will be powered anytime the thermostat calls for air movement. for both the EAC terminal and the HUM terminal com- However, the electronic air cleaner is NOT energized during con- bined.
  • Page 14: Checksandadjustments

    inthe side panel and fasten t he filter rack inplace w ith sheet metal Filters Installed on Two Sides screws. SeeFigure 12. CAUTION If filters are only suitable for heating application, vise homeowner that filter size need to be in- creased if air conditioning is added.
  • Page 15 With gas OFF, Connect U-Tube manometer to tapped open- Main Burner ing on gas valve. Use manometer with a 0 to min. 12" water column range. Burner Face Turn gas ON and remove adjustment screw cover on gas valve. Turn counterclockwise to decrease pressure clockwise to increase.
  • Page 16: Furnacemaintenance

    Continuous Fan Operation Table Blower Speed Chart Wire Color A terminal is provided on the electronic fan control located in the Motor Speed circulating blower compartment for operation of the continuous Black High fan option. This connection is intended for the low speed motor Orange* Med-High tap, and has a lower contact rating (8 amps) than the heat and...

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