Alliance Laundry Systems 907003062 Manuale Utente

70420801 (EN)

Gas Requirements

IMPORTANT: Any product revisions or conversions

must be made by the Manufacturer’s Authorized

Dealers, Distributors or local service personnel.

IMPORTANT: The installation must comply with

local codes or, in the absence of local codes:

 with the latest edition of the “National Fuel

Gas Code,” ANSI Z223.1/NFPA 54 in the

U.S.A.

 with CAN/CSA-B149.1 Natural Gas and

Propane Installation Code in Canada

 and Gas Installations Standard AS/NZS 5601

Part 1: General Installations in Australia and

New Zealand

Obtain specific gas service pipe size from the gas

supplier. Refer to Table 7 for general pipe size.

The following must be furnished and installed by the

customer for the gas service line to each tumble dryer.

Refer to Figure 10.

 Sediment traps
 Shut-off valves
 Supply pressure taps

It is important that equal pressure be maintained at all

tumble dryer gas connections. This can be done by

installing a one inch (25 mm) pipe gas loop. Refer to

Figure 11.

NATURAL GAS recommended line pressure is 6.5

water column inches (1.62 kPa), with no less than 5

water column inches (1.24 kPa) and no more than 10.5

water column inches (2.61 kPa), with all gas

appliances running (tumble dryers, water heaters,

space heaters, furnace, etc.). An in-line pressure

regulator may be required if the line pressure exceeds

10.5 water column inches (2.61 kPa) with all gas

appliances running.
LIQUID PETROLEUM GAS (L.P.) line pressure must

be maintained at 11 water column inches (2.74 kPa),

with no less than 10 water column inches (2.49 kPa)

and no more than 13 water column inches (3.23kPa),

with all gas appliances running (tumble dryers, water

heaters, space heaters, furnace, etc.).
For converting Non-CE Models from Natural Gas to

L.P. Gas:

120 Pound Models - M4973P3

170 Pound Models - M4974P3
CE GASES refers to Installing CE Gas Drying

Tumble Dryers section, the above data does not apply

to the CE.

WARNING

To reduce the risk of fire or explosion, DO

NOT CONNECT THE GAS LINE TO THE

TUMBLE DRYER IF THE GAS SERVICE IS

NOT THE SAME AS THAT SPECIFIED ON

THE TUMBLE DRYER SERIAL PLATE! It

will first be necessary to convert the gas

burner orifice and gas valve. Appropriate

conversion kits are available.

W060R1

WARNING

The tumbler and its individual shut-off

valve must be disconnected from the gas

supply piping system during any

pressure testing of that system at test

pressures in excess of 0.5 psig (3.45 kPa).
The tumbler must be isolated from the

gas supply piping system by closing its

individual manual shut-off valve during

any pressure testing of the gas supply

piping system at test pressure equal to or

less than 0.5 psig (3.45 kPa).

W061R2

WARNING

To reduce the risk of fire or explosion, if

the tumble dryer is to be connected to

Liquefied Petroleum (L.P.) gas, a vent to

the outdoors must be provided in the

room where the tumble dryer is installed.

W062R1