16
STS INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Outdoor Enclosure
DC-1110
Flush
14"
(356 mm)
OM-1095
Curb
INSTALLATION
MOUNTING (CONTINUED)
• There are four knockouts on the right and left side of the enclosure. It is
recommended that electrical power is run into enclosure at these knockouts.
• Outdoor Enclosure is designed for lifting by two methods:
– Preferred method of lifting is by forklift. This is only possible if the forks
extend across entire unit. Forks that do not extend across entire unit
could cause tipping, resulting in unsafe conditions or damage to the
unit.
– Alternative method of lifting is through unit’s channel base frame and/
or special lifting lug hooks installed on the unit. Use a load spreader of
suffi cient width to ensure that lifting cables clear sides of unit. If such a
spreader is not available, insert wood strips between cables and unit
where necessary. All four lifting points must be used; they are marked
“lift here” on the unit.
In both cases it must be lifted from the bottom base and kept level, and
it must not tip, fall, or twist. If unit is severely twisted during handling,
permanent damage could occur. It is installer’s responsibility to verify
handling equipment’s capability to safely handle Outdoor Enclosure.
• Outdoor Enclosure has two available steam distribution confi gurations:
– Standard
confi guration is a steam outlet on one side of enclosure for
connecting to steam dispersion unit piping.
– Optional internal confi guration routes steam within Outdoor Enclosure
and down through pipe chase into building.
See the drawings beginning on Page 12.
• Pipe chase is inside enclosure. Cover for pipe chase is provided to maintain
proper pressure in enclosure if this opening is not utilized. However, it is
recommended that this pipe chase be used for both supply water piping
and drain piping, in which case pipe chase cover should be removed.
Install insulation rated for 212 °F (100 °C) to completely fi ll area around
pipes to maintain proper enclosure pressure.
• When enclosure is pad mounted or when pipe chase cannot be used,
supply water and drain piping can be run through the knockouts —
preferably on side opposite utility connections.
• When ordered with heater package, two thermostat-controlled strip heaters
are provided to keep enclosure at constant minimum temperature: one
heater is in control cabinet section, and one heater is in front section.
• Enclosure drain is provided. In case of water leak, water will drain from
enclosure through this drain.
FIGURE 16-1: OUTDOOR ENCLOSURE
MOUNTING OPTIONS
