Alliance Laundry Systems Stacked Drying Tumbler User Manual

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Installation Instructions
M412060
18
Gas Requirements (Gas Drying Tumblers)
Before connecting the gas piping to the tumbler, make 
certain that gas service is the same as that specified on 
the serial plate.
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 in the U.S.A.
- with CAN1-B149.1 or CAN1-B149.2 in Canada
- and Australian Gas Association/Australian L.P. 
Gas Association requirements in Australia
The size of gas service pipe is dependent upon many 
variables (lengths, tees, etc.). Specific pipe size 
information should be obtained from the gas supplier. 
Refer to table in Figure 7 for general pipe size.
A dirt and water vapor pipe trap must be furnished and 
installed by customer. Refer to Figure 6.
It is important that equal pressure be maintained at all 
tumbler gas connections. This can best be done by 
installing a one inch (2.54 cm) pipe gas loop as shown 
in Figures 8 and 9.
Before connecting the gas piping to the tumbler, make 
certain gas service is the same as that specified on the 
serial plate. 
NATURAL GAS service must be supplied at 6-1/2 ± 
1-1/2 inch water column pressure (1.62 ± .37 kPa).
L.P. GAS service must be supplied at 11 ±.3 inch 
water column pressure (2.74 ±.07 kPa).
Pressure checks can be made at the shut-off valve. 
Refer to Figure 6.
To reduce the risk of fire or explosion, DO 
NOT CONNECT THE GAS LINE TO THE 
TUMBLER IF THE GAS SERVICE IS NOT 
THE SAME AS THAT SPECIFIED ON THE 
TUMBLER SERIAL PLATE! It will  first be 
necessary to convert the gas burner orifice 
and gas valve. Appropriate conversion kits 
are available.
W060
WARNING
To reduce the risk of fire or explosion, if the 
tumbler is to be connected to Liquefied 
Petroleum (L.P.) gas, a floor level vent to 
the outdoors must be provided in the room 
where the tumbler is installed.
W098
WARNING
Figure 6
TMB215
8
N
1/8 in (.32 cm) N.P.T. plugged 
tapping accessible for 
pressure testing. Gauge 
connection located upstream 
from dryer main manual 
shut-off
Gas Line to 
Dryer Controls
1/2 in Reduced 
to 3/8 in
1/2 in Gas 
Supply Piping 
System
Gas “T”
Fitting
6 Inches (15.2 cm) 
Minimum Gas 
Pipe
Gas 
Pipe Cap
Shut-Off 
Valve
Dirt and 
Water Vapor 
Trap