ICP 8MPT Installation Insrtuctions

80+ gas furnace category i furnace, two-stage heating, variable speed, two-stage heating & supports two- stage cooling units

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User's information manual (10 pages)

User's information manual (10 pages)

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80+ GAS FURNACE

Category I Furnace

*8MPT

Two-Stage

Heating

*8MPV

Variable Speed, Two-Stage

Heating & Supports

Two- Stage Cooling Units

* Denotes

Brands (C, R, T)

See Section 5 for Category ! definition.

SAFETY

CONSIDERATIONS

Improper installation, adjustment,

alteration, service, maintenance,

or use can cause explosion, fire, electrical shock, or

other conditions which may cause death, personal injury, or property damage. Consult a qualified installer, service agency,

or your distributor or branch for information or assistance. The qualified installer or agency must use factory-authorized

kits

or accessories when modifying this product. Refer to the individual instructions packaged with the kits or accessories

when

installing.

Follow att safety codes. Wear safety glasses,

protective

clothing,

and work gloves.

Use quenching

cloth for brazing

operations.

Have fire extinguisher

available.

Read these

instructions

thoroughly

and follow all warnings

or cautions

included in literature and attached to the unit. Consult local building codes, the current editions of the National Fuel Gas

Code (NFCG) NFPA 54/ANSI Z223.1, and the National Electrical Code (NEC) NFPA 70.

In Canada refer to the current editions of the National standards of Canada CAN/CSA-B149.1

and .2 Natural Gas and

Propane Installation Codes, and Canadian Electrical Code CSA C22.1.

Recognize safety information. This is the safety-alert

symbol z_. When you see this symbol on the unit and in instructions

or manuals,

be alert to the potential for personal injury.

Understand

these signal words; DANGER,

WARNING,

and

CAUTION. These words are used with the safety-alert

symbol. DANGER identifies the most serious hazards which will

result in severe personal injury or death. WARNING

signifies hazards which could

result in personal injury or death.

CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage.

NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

International Comfort Products, LLC

Lewisburg,

TN.37091

1. Safe Installation Requirements ..................

2. Installation.................................

3. SideVenting................................

4. Combustion & Ventilation Air ...................

5. GasVentInstallation .........................

6. Horizontal V enting ...........................

7. Chimney AdapterVenting ......................

8. Gas Supplyand Piping ........................

9. ElectricalWiring .............................

INSTALLER:

Affix these instructions

on or

adjacent

to the furnace.

CONSUMER:

Retain these instructions

for

future reference.

Table of Contents

10. Ductwork and Filter (Upflow/Horizontal)

.........

11. Ductworkand Filter(Downflow) ...............

12. Checksand Adjustments ....................

13. FurnaceMaintenance .......................

14. Sequence of Operation& Diagnostic (*8MPT) .....

15. WiringDiagram (*8MPT) .....................

16. Sequence of Operation& Diagnostic (*8MPV) .....

17. WiringDiagram (*8MPV) .....................

18. Thermostat W iringGuide ....................

ELECTRIC SHOCK HAZARD

Failure to follow this warning

could result in personal injury

and/or death.

Turn Off All Power Before

Servicing.

CARBON MONOXIDE POISONING AND FIRE

HAZARD.

Failure to follow this warning could result in

personal injury, death and/or property dam-

age.

This furnace is not designed for use in mobile

homes, trailers or recreational vehicles.

Portions

of the text and tables are reprinted

from NFPA 54 / ANSi Z223.1-2006@,

with permission

of National

Fire Protection

Association,

Quincy, MA 02269 and American

Gas Association

Washington

DC 20001.

This reprinted

material is not the complete

and official position of the NFPA or ANSi

on the referenced

subject

which is represented

only

by the standard

in its

entirety.

Specificationsare subject to changewithout notice

441 01 202301 March2009

Table of Contents

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Summary of Contents for ICP 8MPT

Page 1: Table Of Contents
12. Checksand Adjustments ....4. Combustion & Ventilation Air ....13. FurnaceMaintenance ....... 5. GasVentInstallation ......14. Sequence of Operation& Diagnostic (*8MPT) ..6. Horizontal V enting ......15. WiringDiagram (*8MPT) ..... 7. Chimney AdapterVenting ...... 16. Sequence of Operation& Diagnostic (*8MPV) ..
Page 2 START-UP CHECK SHEET For PSC Models *8MPT (This sheet is optional. Keep for future reference.) Date of Start-Up:. Calculated Input (BTU) Rate: (See Checks and Adjust- ments Section). Dealer Name: Heating Check Measured Line Pressure During High Heat: Address: Measured Manifold Pressure:...
Page 3 START-UP CHECK SHEET For Variable Speed Models *8MPV (This sheet is optional. Keep for future reference.) Date of Start-Up:. Calculated Input (BTU) Rate: (See Checks and Adjust- ments Section). Dealer Name: Heating Check Address: Measured Line Pressure During High Heat: Measured Manifold Pressure: High Heat City, State(Province),...
Page 4: Safe Installation Requirements
1. Safe Installation Requirements Seal around supply and return air ducts. Install correct filter type and size. CARBON MONOXIDE FIRE, EXPLOSION, POISONING HAZARD Unit MUST be installed so electrical components are pro- Improper adjustment, alteration, service, tected from direct contact with water. maintenance or installation could result in personal injury, death and/or property damage.
Page 5: Installation
FrozenWater 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. If the structure wilt be unattended during cold weather you should take these precautions. WATER DAMAGE TO PROPERTY HAZARD Turn off the water supply to the structure and drain the water Failure to protect against the risk of freezing could...
Page 6 Inspect the rating plate to be certain the model number begins with This furnace can be installed in an upflow, horizontal (either teft or "*8MPV" or "*8MPT'. This identifies the unit as a multi-position right) or downflow airflow position. DO NOT install this furnace on furnace and can be installed in a Upflow, Horizontal Right, Hori- its back.
Page 7 (see Figure 3) The Multi-position furnace (*8MPT or*8MPV) may be installed in a downflow configuration, (see Figure 4). The minimum clear- Horizontally installed furnaces may be vented out the top of the ances to combustion MUST be maintained between the furnace unit or out the side facing up.
Page 8: Sideventing
PressureSwitch Relocation New labels for rightside-up application on outside of blower compartment door may be purchased in a kit from your dis- tributor to cover upside-down labels. If the furnace is installed in the upflow position, the pressure T ,ca, oown.ow.nsta.a.,on switch will remain in the same position as installed by the factory unless the inducer is rotated.
Page 9: Combustion & Ventilation Air
Venter as et iiiiiiii_iiiiii;iii!iiiiiiiiiii;iii_iii1iii_i1iiiii_i;iii!iiiii1iii!!_ii_iiiiIiiiiiiiii!iiiiiiiiiiii_iiii1;i1iiiiiiiiii_!i_iiii;1iii li/ l urnacew,t Screws iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii ..Vent Plate Replace venter gasket (part # 1013540, if needed) to venter assembly with adhesive in the same location as the old one. Rotate venter assembly 90 ° right or left from original location depending on venting configurations.
Page 10 Air Openings and Connecting Ducts Requirements Total maximum input ratings for all gas appliances in the Provide confined space with sufficient air for proper com- space MUST be considered when determining free area of bustion and ventilation of flue gases using horizontal or ver- openings.
Page 11 Free Area iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii Minimum Free AreaRequired f or Each Opening o r Duct toOutdoors BTUH (kW) Two Vertical D ucts or Round Duct Input Two Horizontal Ducts Single Opening Openings BTUH (kW) Rating BTUH (kW) BTUH (kW) BTUH (kW) in./4,000(6.5cm2/.18) in./2,000(1 cm2/.09) sq.
Page 12: Gasventinstallation
1 square inch of free area per 4,000 BTUH of total input rating Required Volume fan_ 15ft3 If an for all gas appliances in the space. 1000 BTUH • In spaces that use the Indoor Combustion Air Method, in- filtration should be adequate to provide air for combustion, ventilation and dilution of flue gases.
Page 13: Horizontal Venting
Ventingand CombustionAir Check VentCheck NOTE: When an existing Category ! furnace is removed or re- iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii ..placed, the original venting system may no longer be sized to properly vent the attached appliances, and to make sure there is Vent Pipe --_ Draft Hood adequate combustion air for all appliances,...
Page 14 Other than Direct Vent Termination Clearance ..-r .......... 25-24-65-2 AREA WHERE TERMINAL IS NOT PERMITED %X/' A R SUPPLY NLET VENTTERMINAL Item Clearance Descriptions Canadian Installation (1) U.S. Installation (2) Clearance above grade, veranda, porch, deck, balcony, or 12 inches (30cm) # 12 inches (30 cm) anticipated snow level...
Page 15 7. Masonry Chimney Venting If a clay tile-lined masonry chimney is being used and it is ex- Chimney Inspection posed to the outdoors below the roof line, relining might be re- All masonry chimney construction must conform to Standard quired. Chimneys shall conform to the Standard for Chimneys, NFPA 211-2006 and to any state or local codes applicable.
Page 16 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. The chimney should be relined with a listed metal liner, Type-B vent, or a listed chimney adapter ©...
Page 17 CHIMNEY INSPECTION CHART For additiona(requirements refer to the Nationa(Fue(Gas Code NFPA 54/ANSIZ223.1 2006 and NFPA 211 2006 Chimneys,Firep)aces,Vents, and So))d Fue)Burning App(iancesin the U.S.A. or to the Canadian InstallationCode CSA-B149.1 in Canada. Missing mortar Rebuild or brick? crown condition: with day tile liner? Reline (iner or top sea(...
Page 18: Gas Supplyand Piping
8. Gas Supply and Piping Gas Pressures i i ii,i.iii i._i_..iiiiiiii.ii..iiiii.i.i..iii.iii.iii.iii.iii.iii.iii.iii.iii.iii.iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii_ FIRE AND EXPLOSION HAZARD Gas Type Supply Pressure Failure to follow this warning could result Recommended Max. Min. personal injury, death and/or property damage. 14 in wc Natural 7 in wc 4.5 in wc (1744 Pa) (3487 Pa)
Page 19 Gas Valve with Elbows (*8MPT/*SMPV) FIRE HAZARD Failure to follow this warning could result in personal injury, death and/or property damage. Use wrench to hold furnace gas control valve when turning elbows and gas line to prevent damage to the gas control valve and furnace.
Page 20 Ensure furnace is equipped with the correct main burner orifices. Refer to Table 5 or Table 4 for correct orifice size and manifold pressure for a given heating value and specific gravity for natural CARBON MONOXIDE POISONING HAZARD and propane gas. Failure to follow this warning could result in per- sonal injury, death and/or property damage.
Page 21 MANIFOLDPRESSUREAND ORIFICE SIZE FOR HIGH ALTITUDEAPPLICATIONS NATURAL GAS MANIFOLD PRESSURE (in wc) MEAN ELEVATION FEET ABOVE SEA LEVEL if(m) iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii ..0 to2000 2001 to3000 3001to4000 4001 to5000 5001 to6000 6001 to 7000 7001to 8000 HEATING VALUE at (0to609.6) (609.9 to914.4) (914.7 to 1219.2) (1219.5 to 1524) (1524.3 t o 1828.8)
Page 22: Electricalwiring
FinalGas Piping Check Manifold FIRE OR EXPLOSION HAZARD Failure to follow this warning could result personal injury and/or death. Never test for gas leaks with an open flame. Use a commercially available soap solution made specifically for the detection of leaks to check all connections.
Page 23 The furnace control board has a dehumidification feature which reduces cooling airflow by 20% when the DEHUM terminal *8MPT [1/4" (6.4mm) male quick connect] is energized by 24VAC and there is a cooling call. DEHUM may be operated by a thermostat dehumidify...
Page 24 Connections motor. There are DIP switches (SW2) for continuous blower *8MPT adjust, heating blower adjust, cooling blower adjust and cooling on/off delay profiles. There is a jumper (J1) for slight blower NOTE:Junction Box can be mounted to eitherthe left or right side.
Page 25: Ductwork And Filter (Upflow/Horizontal)
10. Ductwork and Filter (Upflow/Horizontal) Duct InstallationRequirements When a furnace is installed so that supply ducts carry air cir- CARBON MONOXIDE POISONING HAZARD culated by the furnace to areas outside of the space con- Failure properly seal duct could result taining the furnace, the return air shall also be handled by personal injury or death.
Page 26 See Table 6 for required high-velocity filter sizes. NOTE: Disposable, low-velocity filters may be replaced with washable, high-velocity filters providing they meet the minimum size areas for 300 FPM or less. Washable, high-velocity filters High Velocity Air Filter Sizes (max. FPM) can be replaced ONLY with same type and size filter.
Page 27: Ductworkand Filter(Downflow)
Internal Filter in Bottom Return Installation Note: If filters are only suitable for heating application, advise homeowner that filter size may need to be increased if air condi- When installing _bottom-mounted filter inside the furnace, install tioning is added. the filter clips on the edge of the bottom duct opening with the wid- er end of the clips toward the blower, as shown in Figure 26.
Page 28 The Sub-base for Combustible Floors MUST be used when a downflow furnace is set on a combustible floor, even when the fur- nace is installed on a coil box. FIRE HAZARD Cut the opening in the floor according to the dimensions in Failure to install furnace on noncombustible...
Page 29 iiiM;_Miiii!iiiiiiii;iii!;jiIi_i;jiiii_iiii_iiii11iiiii_ji!!iiiiiIii1i!iijiiiiIi;1i!;ijiiii!i_iiiiIii1iiij};;;1iiii_!iii1iiii height of the subbase raises the downfiow coil off the floor to allow Sett,n t.e ase easy installation of the condensate drain iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii Furnace , /;- j \ z _.. Condensate Line Raised by Base Subbase Insulation Wood Floor Wood Screw Plenum --_\_-_-/z...
Page 30: Checksand Adjustments
• Non-combustible, flexible duct connectors are recom- • With a parallel flow arrangement, the dampers or other means used to control flow of air shall be adequate to pre- mended for return and supply connections to furnace. vent chilled air from entering the furnace. Chilled air going •...
Page 31 3,600 + 80 x .05 = 7.2 m3/h 2.25m3/h x 10.35 kWh/m3 = 23.28 Blower Motor Speed Taps for *8MPT Model Sizes 23.28 X 3.412 = 79,431 BTU Model Heat M LO M HI Sizes Stage BLUE Remove jumper wire from R to Wl and W2.
Page 32 Hard-Wired Continuous Fan BlowerAdjustments (*SMPT) A terminal is provided on the furnace control board located in the Changing Blower Speed circulating air blower compartment for operation of the continuous fan option. This connection is intended for the tow speed motor tap, and has a lower contact rating (8 amps) than the heat and cool taps.
Page 33: Furnacemaintenance
and DIP SW2 switch #2. EAC will be energized in this mode. Continuous- Fan using "G" NOTE: In heating, the fan will not turn off during furnace ignition Energizing the "G" terminal on the furnace control board provides and warm up. continuous fan operation.
Page 34 14. Sequence of Operation & Diagnostics for *8MPT The following is the normal operating sequence at factory default settings (SWl OFF/ON/OFF) Cooling (Y) Request: 24VAC signals applied to Y/Y2 & G terminals of FCB (furnace control board). • Cool motor speed is energized after 5 second Cool Fan On Delay time.
Page 35 Heating Request with Gas Shut Off: 24 VAC signal applied to Wl terminal of FCB. The FCB will attempt 4 cycles for ignition then go to soft lockout for 3 hours, and then try for ignition again as long as the heat call remains.
Page 36: Wiringdiagram (*8Mpt)
15. WiringDiagram*8MPT(TwoStageHeatingwith PSCMotor) FURNACE CONTROL HEAT DELAY THERMOSTAT TYPE COOL DELAY: 5 SEC =1, SWl COOL DELAY: HiGH STAGE DELAY SEC. STAGE coz_ HEAT DELAY SEC. 1.0A NEAT 0FF-DELAY HEAT 0FF-DELAY HEAT 0FF-DELAY H EAT 0FF-DELAY HEAT 0FFDELAY THERMOSTAT TYPE...
Page 37 16. Sequence of Operation & Diagnostics for *8MPV The following is the normal operating sequence at factory default settings (SWl OFF/ON/OFF, SW2 all OFF) NOTE: SW1 DIP switches (G, Y/Y2, W1, W2 thermostat terminals) and DEHUM (1/4" male quick connect terminal) are located on the FCB.
Page 38 Wl signal removed from FCB. • The gas valve de-energizes and the main burners go out. • The inducer runs at its present speed for a 15 second postpurge period. • The fan runs at its present speed. • The blower de-energizes after the selected Heat Fan Off Delay time expires timed from the gas valve de-energizing.
Page 39: Wiringdiagram (*8Mpt)
17. WiringDiagram*8MPV(VariableSpeedBlowerMotor) 441 01 202301 Specifications are subject to change without notice...
Page 40: Thermostat W Iringguide
18. Thermostat Wiring Guide These diagrams are for reference. See thermostat 24V HUM terminal on furnace control is used to power wiring instructions for specific terminal assignments, a humidifier (on call for heat and pressure switch connections or operation. closed) if no HUM thermostat option is available. Humidifier/humidistat is optional and not included DEHUM provides a 20% reduction in airflow (when Y1...
Page 41 No HUM and/or DEHUM Terminal available from thermostat. Humidifier Wiring (*MPT/MPV models) Dehumidify wiring (*MPV models only) TSI B NOTE5 NO CONNECTION NO CONNECTION TWO-STAGE or VS FURNACE CONTROL SINGLE-STAGE THERMOSTAT SINGLE-STAGE OPTIONAL AIR CONDITIONER DEHUMIDISTAT (*MPV Models Only) .... - -_ .....4_ql_ Connect 1 to Y/Y2 for NOTE...
Page 42 Two-Stage Thermostat with Two-Stage Furnace or Variable Speed Furnace (*MPT/MPV Models) and Single-Stage Air Conditioner TWO-STAGE THERMOSTAT TSIB NOTES SINGLE STAGE AIR CONDITIONER VS FURNACE CONTROL OPTIONAL DEHUMIDISTAT (*MPV Models Only) _ If no DEHUM from thermostat available Connect 1 to Y1 for2- stage AC-HP applications.

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ICP 8MPT Installation Insrtuctions

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