DriSteem Vapor-Logic Guía de instalación descargar pdf (Pagina 17)

DRI-STEEM GTS Humidifier Installation, Operation, and Maintenance Manual • Page 15

O u t d o o r e n c l o s u r e m o u n t i n g

( c o n t i n u e d )

Figure 15-1:

Outdoor enclosure installation detail

GTS humidiﬁer in

outdoor enclosure

installed on roof top

Open to drain

Vent with check

valve (by installer)

Disconnect (by installer); see Detail A

120 V supply (230 V in Europe)

Open drain

(See Note 4)

Heated building interior

Normally open (fail open) min ½"

electric valve (by installer)

Optional water seal (P-trap) drain

line, min. 1½" (DN40) (See Note 3)

Roof decking

Detail A

120 V

(230 V in

Europe)

To valves (by

installer) (See

Note 1)

To GTS humidiﬁer

OM-4045

Drain line, min. 1½" electric valve

(See Note 3)

Domestic water, 80 psig

(582 kPa) maximum

Normally closed

(fail closed) min

3/8" electric valve

(by installer)

Normally closed ﬁll

valve (by factory)

Disconnect

box

120 V (230 V in

Europe) from unit

disconnect or other

source (See Note 1)

Make-up water supply piping

(by installer) (See Note 2)

Piping notes:

1. Insulate supply water piping to avoid dripping from condensation. To ensure that water does not remain in the fill line and freeze if there is a

loss of power, DRI-STEEM recommends field installing additional valves upstream of the fill valve in a conditioned space. Power these valves

on the same circuit as the GTS; if the power goes off, water drains out of the fill line to prevent freezing (see Figure 15-1). Supply power

for these valves from the same circuit that supplies the GTS.

2. Ensure that water lines are protected from freezing conditions.

• Install heat tracing and insulation on fill piping inside the outdoor enclosure.

• In extreme or critical applications in which the unlikely event of a water leak could cause severe damage, DRI-STEEM recommends a

thermostat with a remote sensor on the fill line to cut power to the GTS and safety valves to stop fill water to the GTS and drain the fill

piping when the temperature is below freezing.

3. DRI-STEEM recommends copper or iron drain piping for outdoor enclosures. On a loss of power the tank water will drain, but not be cooled

by the Drane-kooler because of the field supplied safety shut-off valves. If it is critical to keep the Drane-kooler functional in the case of a

power loss, disconnect the Drane-kooler and relocate it down inside the conditioned space of the building. Pipe the supply water for the

Drane-kooler before the safety shut-off valves.

4. If copper or iron piping is used for both the fill and drain piping, these drains may be tied together.

Open drain

(See Note 4)

Installation

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DriSteem Vapor-Logic Guía de instalación Pagina 17

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