Gas Information - Maytag MLG-30PDA Installation Manual

Gas Information _______________________

WARNING
!
Explosion Hazard
Use a new CSA International approved gas supply
line.
Install a shutoff valve.
Securely tighten all gas connections.
If connected to LP, have a qualified person make sure
gas pressure does not exceed 13" water column.
Examples of a qualified person include:
licensed heating personnel,
authorized gas company personnel, and
authorized service personnel.
Failure to do so can result in death, explosion, or fire.
Type of Gas
This dryer is equipped for use with natural gas. It is design-
certified by CSA International for L.P. (propane and butane)
gases with appropriate conversion (L.P. kit 887299). No
attempt shall be made to convert the dryer from the gas
specified on the serial/rating plate for use with a different
gas without consulting the serving gas supplier. Conversion
must be done by a qualified service technician.
It is your responsibility to have all plumbing connections,
materials, and workmanship conform to local and state
regulations or codes of the country of destination. In the
absence of such codes, all plumbing connections, materials,
and workmanship must conform to the applicable local
requirements. In the USA this is the National Fuel Gas Code
ANSI Z223.1-LATEST EDITION, or in Canada, the Canadian
Installation Codes CAN/CGA-B149.1-M91 (Natural Gas) or
CAN/CGAB149.2-M91 (L.P. Gas) or LATEST EDITION.
It is important that gas pressure regulators meet applicable
pressure requirements, and that gas meters be rated for the
total amount of all the dryer Btu being supplied.
For ease of service, the individual gas supply line of each
dryer must have its own manual shutoff valve.
The dryer must be isolated from the gas supply piping system
by closing its individual manual shutoff valve during any
pressure test of the gas supply system at test pressures
equal to or less than 1/2 psig (3.5 kPa).
The dryer and its individual shutoff valve must be
disconnected from the gas supply piping system during any
pressure testing of that system at test pressures in excess
of 1/2 psig (3.5 kPa).
Failure to isolate or disconnect the dryer from supply as noted
can cause irreparable damage to the gas valve, voiding the
warranty.
113543 -3
NOTE: Undersized gas piping will result in ignition
problems, slow drying, and increased use of energy.
The input ratings shown on the data label are for elevations
up to 2,000 feet (610 meters), unless elevation requirements
of over 2,000 feet (610 meters) were specified at the time the
dryer order was placed with the factory. The adjustment or
conversion of dryers in the field for elevations over 2,000 feet
(610 meters) is made by changing each burner orifice. If this
conversion is necessary, contact the distributor who sold the
dryer or contact the manufacturer.
IMPORTANT: If connection to this dryer is made with a
flexible hose, it must be suitable for the appliance
category in accordance with national installation
regulations of the country of destination, and if in doubt the
installer must contact the supplier. The manufacturer of
this dryer does not recommend the use of flexible gas
supply line/hose.
Pipe joint compounds that resist the action of natural,
propane, and butane gases must be used.
In the U.S.A.: An individual manual shutoff valve must be
installed within 6 feet (1.8 meters) of the dryer in accordance
with the National Fuel Gas Code, ANSI Z223.1.
In Canada: An individual manual shutoff valve must be
installed in accordance with the B149.1, Natural Gas and
Propane Installation Code. It is recommended that an
individual manual shutoff valve be installed within 6 feet (1.8
meters) of the dryer.
Natural Gas
Nominal
Supply
Heating
Pressure
Value
3
B tu /ft in WC
1,000 6.0-12.0
* Consult factory for elevations over 2,000 feet (609.6 meters) for correct
burner orifice size(s).
** Btu rating for both tumblers.
Gas Connections
Inlet connection ..... 1/2" M.N.P.T. (1 per pocket)
Inlet supply size .... 1/2" Pipe (minimum) (1 per pocket)
Combined top and bottom require a 3/4" supply (minimum)
Piping / Connections
The dryer is provided with two 1/2" N.P.T. inlet pipe connection
at the rear of the dryer. It is recommended that a gas shutoff
valve be provided to the gas supply line of each pocket for
ease in servicing.
The size of the main gas supply line (header) will vary
depending on the distance this line travels from the gas
meter. Specific information regarding supply line size should
be determined by the gas supplier.
NOTE: Undersized gas supply piping can create a low or
inconsistent pressure, which will result in erratic operation
of the burner ignition system.
Maytag Co.
Specifications**
Gross Orifice
Orifice
Heat Input Size*
(Injector)
Quantity
Btu/hr kW DMS mm
144,000 42.2 20 4.089
Burner
Pressure
in WC
2 3.5
11