Specifications

OM-4008
Duct
Distribution tube
Humidifier
Secure and seal
face plates
Mounting nut
3/8” - 16
Tube pitch: 2”/ft (15%)
Steam hose; do not exceed
10’ (3 m) in length. Use copper
tube if additional length is
required.
Hose pitch: 2”/ft (15%)
FIGURE 16 – Distribution Tube Installation
90-915
FIGURE 17
4.5” minimum from
tube to duct ceiling
Distribution tube
Face Plates
3/8” - 16 Threaded rod
4.5” minimum from tube
to duct ceiling
23