Amana ACV9, AMV9 installation instructions Gas Piping Connections

of the furnace. The rigid pipe must be long enough to reach the outside of the cabinet so as to seal the grommet cabinet penetration. A semi-rigid connector to the gas piping can be used outside the cabinet per local codes.

shipped from the factory. Maximum torque for the gas valve connection is 375 in-lbs; excessive over-tightening may damage the gas valve.

•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. In order to seal the grommet cabinet penetration, rigid pipe must be used to reach the outside of the cabinet. A semi-rigid connector to the gas piping may be used from there.

•Use listed gas appliance connectors in accordance with their instructions. Connectors must be fully in the same room as the furnace.

•Protect connectors and semirigid 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.

CAUTION

EDGES OF SHEET METAL HOLES MAY BE SHARP. USE GLOVES A PRECAUTION WHEN REMOVING HOLE PLUGS.

DIRECT/STANDARD INLET PIPING

When gas piping enters directly to the gas valve through the stan- dard inlet hole, the installer must supply straight pipe with a ground joint union to reach the exterior of the furnace. The rigid pipe must be long enough to reach the outside of the cabinet to seal the grommet cabinet penetration. A semi-rigid connector to the gas piping can be used outside the cabinet per local codes.

INDIRECT/ALTERNATE INLET PIPING

When gas piping enters indirectly to the gas valve through the alternate gas inlet hole the following fittings (starting from the gas valve) to reach the outside of the cabinet must be supplied:

•Coupling.

•90 degree elbow.

•2 inch close nipple.

•90 degree elbow.

•Straight pipe, with a ground joint union, to reach the exterior

GAS VALVE

MANIFOLD BURNERS

ALTERNATE

GAS LINE

LOCATION

PLUG IN

ALTERNATE

GAS LINE

HOLE

GROUND JOINT

PIPE UNION

	MANUAL
	SHUT OFF VALVE
MANUAL	(UPSTREAM FROM	ALTERNATE
	GROUND JOINT	GAS LINE
SHUT OFF VALVE	PIPE UNION)	LOCATION
(UPSTREAM FROM
GROUND JOINT
PIPE UNION)
	HEIGHT REQUIRED	PLUG IN
		ALTERNATE
HEIGHT REQUIRED	BY LOCAL CODE
		GAS LINE
BY LOCAL CODE		HOLE

GROMMET
IN STANDARD	*
GAS LINE HOLE
GROMMET	GAS VALVE
IN STANDARD
GAS LINE HOLE	MANIFOLD

	DRIP LEG
DRIP LEG	B URNERS
	GROUND JOINT
	PIPE UNION

GAS PIPING CHECKS

Before placing unit in operation, leak test the unit and gas connec- tions.

WARNING

TO AVOID THE POSSIBILITY OF EXPLOSION OR FIRE, NEVER USE A MATCH OR OPEN FLAME TO TEST FOR LEAKS.

	UPFLOW		COUNTERFLOW
	MANUAL SHUT-OFF VALVE		MANUAL SHUT-OFF VALVE
	(UPSTREAM FROM GROUND
	JOINT PIPE UNION)		(UPSTREAM FROM GROUND
		GROUND JOINT	JOINT PIPE UNION)
GROUND JOINT		PIPE UNION
PIPE UNION
	DRIP LEG		DRIP LEG
GAS VALVE	GROMMET IN STANDARD	GAS VALVE	GROMMET IN STANDARD
	GAS LINE HOLE		GAS LINE HOLE
BURNERS		BURNERS

						DRAIN TRAP					DRAIN TRAP
										MANIFOLD	PLUG IN ALTERNATE
							ALTERNATE				GAS LINE HOLE
			MANIFOLD		PLUG IN ALTERNATE		GAS LINE LOCATION
ALTERNATE GAS					GAS LINE HOLE
LINE LOCATION										HORIZONTAL[COUNTERFLOW]
		HORIZONTAL [UPFLOW MODEL]
	NOTES: 1. WHEN GAS LINE IS IN THE ALTERNATE							2. DRIP LEG MAY TERMINATE WITH
				LOCATION, SWAP THE POSITION OF					A 1/2" X 1/8" PIPE PLUG TO
				THE PLUG AND GROMMET.					ACCOMMODATE LINE GAS
									PRESSURE MEASUREMENT.

Gas Piping Connections

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

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 pres- sures in excess of 1/2 psig (3.48 kPa).

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

PROPANE GAS TANKS AND PIPING

WARNING

PROPANE GAS IS HEAVIER THAN AIR AND ANY LEAKING GAS CAN SETTLE IN ANY LOW AREAS OR CONFINED SPACES. TO PREVENT PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH DUE TO FIRE OR EXPLOSION CAUSED BY A PROPANE GAS LEAK, INSTALL A GAS DETECTION WARNING DEVICE.

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

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