background image

19

IO-247A

     12/04

• Install a drip leg to trap dirt and moisture before it can enter

the gas valve.  The drip leg must be a minimum of three
inches long.

• Install a 1/8" NPT pipe plug fitting, accessible for test gage

connection, immediately upstream of the gas supply
connection to the furnace.

• Use two pipe wrenches when making connection to the gas

valve to keep it from turning.  The orientation of the gas
valve on the manifold must be maintained as shipped from
the factory.

• Install a manual shutoff valve between the gas meter and

unit within six feet of the unit.  If a union is installed, the
union must be downstream of the manual shutoff valve,
between the shutoff valve and the furnace.

• Tighten all joints securely.
• Connect the furnace to the building piping by one of the

following methods:

Rigid metallic pipe and fittings.

Semi-rigid metallic tubing and metallic fittings.

Aluminum alloy tubing must not be used in exterior
locations.

Use listed gas appliance connectors in accordance with

their instructions.  Connectors must be fully in the same
room as the furnace.

Protect connectors and semi-rigid tubing against

physical and thermal damage when installed.  Ensure
aluminum-alloy tubing and connectors are coated to
protect against external corrosion when in contact with
masonry, plaster, or insulation, or subjected to repeated
wetting by liquids such as water (except rain water),
detergents, or sewage.

``

Location of Manual Valve
(Installed Ahead of Ground
Joint Pipe Union)

Height Required
By Local Code

Ground Joint Pipe Union
To Be Installed Ahead Of 
Gas Valve

Drip Leg

Reducing Coupling
1/2" x 1/8" with 1/8"
Pipe Plug To Measure
Line Gas Pressure

General Furnace Layout

U

PFLOW

 I

NSTALLATIONS

When the gas piping enters through the right side of the furnace

,

the installer must supply the following fittings (starting from the gas
valve):

• 90 degree elbows (2).
• Close nipple.
• Straight pipe to reach the exterior of the furnace .

A ground joint union, drip leg, and manual shutoff valve must also
be supplied by the installer. In some cases, the installer may also

need to supply a transition piece from 1/2" to another pipe size.

When the gas piping enters through the left side of the furnace,
the installer must supply the following fittings (starting from the
gas valve):

• Straight pipe to reach the exterior of the furnace.
• A ground joint union, drip leg, and manual shutoff valve must

also be supplied by the installer. In some cases, the installer
may also need to supply a transition piece from 1/2 inch to
another pipe size.

G

AS

 P

IPING

 C

HECKS

Before placing unit in operation, leak test the unit and gas
connections.

WARNING

T

O AVOID THE POSSIBILITY OF EXPLOSION OR FIRE, NEVER USE A MATCH OR

OPEN FLAME TO TEST FOR LEAKS.

Check for leaks using an approved chloride-free soap and water
solution, an electronic combustible gas detector, or other approved
testing methods.

CAUTION

T

O PREVENT PROPERTY DAMAGE OR PERSONAL INJURY DUE TO FIRE, THE

FOLLOWING INSTRUCTIONS MUST BE PERFORMED REGARDING GAS

CONNECTIONS, PRESSURE TESTING, LOCATION OF SHUTOFF VALVE AND

INSTALLATION OF GAS PIPING.

NOTE:

  Never exceed specified pressures for testing.  Higher

pressure may damage the gas valve and cause subsequent
overfiring, resulting in heat exchanger failure.

Disconnect this unit and shutoff valve from the gas supply piping
system before pressure testing the supply piping system with
pressures in excess of 1/2 psig (3.48 kPa).

This unit must be isolated from the gas supply system by closing
its manual shutoff valve before pressure testing of gas supply piping
system with test pressures equal to or less than 1/2 psig (3.48
kPa).

P

ROPANE

 G

AS

 T

ANKS

 

AND

 P

IPING

WARNING

I

F THE  G AS FURNACE  IS INS TALLED  IN A  BAS EME NT, AN E XCAV ATED

ARE A O R A CO NFINED  SP ACE ,  IT IS S TRONG LY RE COM M ENDE D TO

CONTACT A P ROP ANE SUPP LIE R TO INSTALL A GAS  DE TECTING

WARNING  DEVICE  IN  CASE  OF  A GAS  LE AK. 

• 

S

INCE  P ROPANE  G AS  IS  HE AVIER THAN  AIR, ANY  LE AKING G AS  CAN

  S ETTLE  IN ANY  LOW  ARE AS  O R CONFINE D S PACE S. 

• 

P

ROP ANE GAS  O DORANT M AY FADE,  M AKING  THE GAS UNDETE CTABLE

  E XCE PT  WITH A W ARNING  DEV ICE.

A gas detecting warning system is the only reliable way to detect a
propane gas leak. Rust can reduce the level of odorant in propane
gas.  Do not rely on your sense of smell.  Contact a local propane
gas supplier about installing a gas detecting warning system.  If
the presence of gas is suspected, follow the instructions on Page
4 of this manual.

All propane gas equipment must conform to the safety standards
of the National Board of Fire Underwriters, NBFU Manual 58.

Содержание AMV8

Страница 1: ...than when the unit is in operation Remember it is your responsibility to install the product safely and to know it well enough to be able to instruct a customer in its safe use Safety is a matter of...

Страница 2: ...INSTALLATION 13 FIX 1 LINER TERMINATION 13 FIX 2 CHANGE VENTING ARRANGEMENTS 13 FIX 3 REBUILD THE CROWN 13 FIX 4 RELINING 13 VIII Electrical Connections 14 WIRING HARNESS 14 115 VOLT LINE CONNECTIONS...

Страница 3: ...7 ANNUAL INSPECTION 27 FILTERS 27 FILTER MAINTENANCE 27 FILTER REMOVAL 27 UPRIGHT FILTER REMOVAL 27 INDUCED DRAFT AND CIRCULATOR BLOWER MOTORS 28 FLAME SENSOR QUALIFIED SERVICER ONLY 28 IGNITER QUALIF...

Страница 4: ...mponent failures could result in heating system operational problems TO THE INSTALLER Before installing this unit please read this manual thoroughly to familiarize yourself with specific items which m...

Страница 5: ...uring grounding will be discharged 3 Service integrated control module or connecting wiring following the discharge process in step 2 Use caution not to recharge your body with static electricity i e...

Страница 6: ...s permitted when installed in the horizontal configuration Line contact is defined as the portion of the cabinet that is formed by the intersection of the top and side National Fire Protection Associa...

Страница 7: ...nting system are not in operation a Seal any unused openings in the venting system b Inspect the venting system for proper size and horizontal pitch as required by the National Fuel Gas Code ANSI Z223...

Страница 8: ...AM AGE PERSONAL INJURY OR DEATH SUFFICIENT FRESH AIR FO R PROPER COM BUSTION AND VENTILATION OF FLUE G ASES M UST BE SUPPLIED MO ST HOM ES REQ UIRE OUTSIDE AIR BE SUPPLIED INTO THE FURNACE AREA Improv...

Страница 9: ...input rating of all equipment in the enclosure Furnace Water Heater Chimney or Gas Vent NOTE The air duct openings must have a free area of not less than one square inch per 2000 BTU of the total inp...

Страница 10: ...W 70 4 Inch 90 4 Inch 115 N A 140 N A MODEL Under some conditions larger vents than those shown above may be required or allowed When an existing furnace is removed from a venting system serving other...

Страница 11: ...ter Water Heater Vent Connector Basement Floor F A F Vent Connector Figure 8 Typical Multiple Flue Clay Tile Chimney CHECKLIST SUMMARY This checklist serves as a summary of the items to be checked bef...

Страница 12: ...must be removed and replaced Fix 4 Next gently tap the inside of the liner with a Phillips screwdriver If the screwdriver perforates the liner or if the tapping does not sound like metal hitting metal...

Страница 13: ...acturer s instructions In some cases a shorter extension above the roof may be possible with a liner than would be required with a masonry chimney For further information on relining see Fix 4 FIX 2 C...

Страница 14: ...s that have the junction box located in the include indoor swimming pools and chlorine bleaches paint strippers adhesives paints varnishes sealers waxes which are not yet dried and solvents used durin...

Страница 15: ...switch 24 VOLT THERMOSTAT WIRING NOTE Wire routing must not interfere with circulator blower operation filter removal or routine maintenance As a two stage furnace the furnace integrated control modul...

Страница 16: ...furnace integrated control module 4 Secure the dehumidistat ground wire typically the green lead to the ground screw on the furnace junction box NOTE Ground wire may not be present on all dehumidista...

Страница 17: ...own on the rating plate Overfiring of the furnace can result in premature heat exchanger failure Gas pressures in excess of 13 inches water column can also cause permanent damage to the gas valve IMPO...

Страница 18: ...pressure switch kits PROPANE GAS CONVERSION WARNING POSSIBLE PROPERTY DAMAGE PERSONAL INJURY OR DEATH MAY OCCUR IF THE CORRECT CONVERSION KITS ARE NOT INSTALLED THE APPROPRIATE KITS MUST BE APPLIED TO...

Страница 19: ...h the left side of the furnace the installer must supply the following fittings starting from the gas valve Straight pipe to reach the exterior of the furnace A ground joint union drip leg and manual...

Страница 20: ...9 1 559 50 18 37 79 131 198 376 114 237 448 913 1 417 60 16 35 72 121 187 340 103 217 409 834 1 275 80 13 29 62 104 155 289 89 185 346 724 1 066 100 11 26 55 90 138 255 78 162 307 630 976 125 10 24 48...

Страница 21: ...waits call from thermostat NORMAL HEATING SEQUENCE R and W1 or R and W1 W2 thermostat contacts close initiating a call for heat Integrated control module performs safety circuit checks Induced draft b...

Страница 22: ...blower requires 30 seconds to ramp up to full speed Electronic air cleaner terminals are energized with circulator blower Furnace circulator blower and outdoor cooling unit run their appropriate spee...

Страница 23: ...Installation s gas heating HTG value 1 000 BTU ft3 Obtained from gas supplier Installation s seconds per cubic foot 34 sec ft3 Conversion Factor hours to seconds 3600 sec hr Input Htg value x 3600 sec...

Страница 24: ...r the cooling system Most cooling systems are designed to work with air flows between 350 and 450 CFM per ton Most manufacturers recommend an air flow of about 400 CFM per ton Example 2 5 tons X 400 C...

Страница 25: ...ormance to be optimized for the particular homeowner s needs O F F O F F 8 7 4 3 2 1 O F F O N 4 3 2 1 O N O F F 4 3 2 1 O N O N 4 3 2 1 Cooling Speed Tap A Cooling Speed Tap B Cooling Speed Tap C Coo...

Страница 26: ...ontrol will reset and allow the furnace to resume normal operation WARNING TO PREVENT PREMATURE FAILURE OF HEAT EXCHANGER PROPERTY DAMAGE PERSONAL INJURY OR DEATH DO NOT ADJUST THE LIMIT CONTROL FACTO...

Страница 27: ...n determining the cause XVI MAINTENANCE WARNING TO AVOID ELECTRICAL SHOCK INJURY OR DEATH DISCONNECT ELECTRICAL POWER BEFORE PERFORMING ANY MAINTENANCE IF YOU MUST HANDLE THE IGNITER HANDLE WITH CARE...

Страница 28: ...VENT PERSONAL INJURY OR DEATH DO NOT REMOVE ANY INTERNAL COMPARTMENT COVERS OR ATTEMPT ANY ADJUSTMENT ELECTRICAL COMPONENTS ARE CONTAINED IN BOTH COMPARTMENTS CONTACT A QUALIFIED SERVICE AGENT AT ONCE...

Страница 29: ...circuit Inspect pressure switch hose Repair if necessary Inspect flue for blockage proper length elbows and termination Correct pressure switch setpoint or contact motion Tighten or correct wiring con...

Страница 30: ...spect for proper sensor alignment Check inlet air piping for blockage proper length elbows and termination Compare current gas pressure to rating plate info Adjust as needed Turn power OFF prior to re...

Страница 31: ...MIT CONTROL WIRING TO UNIT MUST BE PROPERLY ON S OME M O DE LS IN DU CTO R COI L P R ES SU R E SWI TC H LO W FIR E Y L RD BK WH IN D U CED B R GN D WH WH BK BR RD GN BU BR WH AU XI LIA RY LI M I T C O...

Страница 32: ...of product failure They are simple to service and forgiving to operate We use quality materials and components Finally every unit is run tested before it leaves the factory That s why we know There s...

Отзывы: