Chapter 3 Matters needing attention
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Service Manual
Order No. TL1206S003V1.1
Issue
Rev.
3
The exhaust system should be inspected and cleaned a minimum of every 12
months with normal usage. The more the dryer is used the more often you
should check the exhaust system and vent hood for proper operation.
6. In Canada, that the exhaust duct shall be 102 mm in diameter. In the United
States, the required exhaust duct diameter;
7. The total length of flexible metal duct shall not exceed 2.4 m.
RECOMMENDED MAXIMUM
Exhaust Hood Types
Recommended
Use only for short run installations
No. of 90º elbows
Rigid Metal
Rigid Metal
0
90 ft.
60 ft.
1
60 ft.
45 ft.
2
45 ft.
35 ft.
3
35 ft.
25 ft.
Note: Exhausting refers to removal of moist air from the drying compartment.
Gas supply requirements
WARNING
Replace copper connecting pipe that is not plastic-coated. Stainless steel or
plastic-coated brass MUST be used.
1.Installation MUST conform with local codes. In the absence of local codes, installation must
conform with the National Fuel Gas Code, ANSI Z223.1 (latest edition) or in Canada, the
current CAN/CGA B149.1
2. The gas supply line should be 1/2 inch (1.27cm) pipe.
3. If codes allow, flexible metal tubing may be used to connect your dryer to the gas supply line.
The tubing MUST be constructed of stainless steel or plastic-coated brass.
4. The gas supply line MUST have an individual manual shutoff valve installed within 6 feet
(183cm) of the dryer in accordance with the National Fuel Gas Code, ANSI Z223.1/NFPA 54.
In Canada, an individual manual shut-off valve MUST be installed in accordance with the
B149.1, Natural Gas and Propane Installation Code.
5. A 1/8 inch (0.32cm) N.P.T. plugged tapping, accessible for test gauge connection, MUST be
installed immediately upstream of the gas supply connection to the dryer.
6. The dryer MUST be disconnected from the gas supply piping system during any pressure
testing of the gas supply piping system at test pressures in excess of 1/2 psig (3.45kPa).
7. The dryer MUST be isolated from the gas supply piping system during any pressure testing of
the gas supply piping system at test pressures equal to or less than 1/2 psig (3.45 kPa).