14
XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
INSTALLATION
Field piping overview
OM-7973
Install
plumb
3/4" (DN20) drain piping up to
second drain connection
Supply valve, by installer
Drain hose and clamp*
Inlet strainer, by installer
Notes:
• Dashed lines indicate provided by installer.
• Two-cylinder model shown.
* Ships with humidifi er
Shock arrester
(by installer)
recommended
to reduce water
hammer
Floor
drain
Open drains required directly
below humidifi er drains to prevent
downstream drain line blockage
from causing water to back up into
cylinder. Refer to governing codes
for drain pipe size and maximum
discharge water temperature. Install
spill funnels plumb to fl oor drain.
Metallic water
supply line
3/8" (DN10) copper water supply line; water
pressure must be 25 to 80 psi (175 to 550 kPa).
Fill valve with 1/4" FIP
(3/8" BSP [DN10] in
Europe) supply water
connection
1¼" (DN32) drain piping after
second drain connection, or if
piping run is over 10’ (3 m).
1" (25 mm) air gap required to
isolate unit drain piping from sanitary
drain piping. Locate air gap only in
spaces with adequate temperature
and air movement to absorb fl ash
steam, or condensing on nearby
surfaces could occur.
Steam hose or tubing. DriSteem
recommends tubing for runs longer than
10' (3 m). See Table 26-1 for maximum
tubing lengths. Tubing must be grounded.
Pitch 1/8"/ft (1%) toward drain
Piping:
FIGURE 14-1: XT SERIES HUMIDIFIER FIELD PIPING OVERVIEW