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Minivap
Nozzle Installation
General positioning:
The position of the nozzle in the air-conditioning system
relative to other items- bends, filters, heat exchangers,
etc., is critical and must be decided by the design
engineer responsible for the project.
DO's
DO obtain project engineer's instruction/drawing for
chosen location of pipe.
DO obtain project engineer's instruction/drawing for pipe
position relative to the top & bottom of the duct (or sides
if airflow is vertical).
Steam Hose Connection
DO's
DO use steam hose/copper pipe of equivalent size to the
steam cylinder outlet dia. 22mm (7/8").
DO use Vapac steam hose or well insulated copper pipe.
DO keep steam hose as short as possible - under 2m
(6ft) for max efficiency.
DO arrange to have a vertical rise immediately over the
unit of 300 mm (l ft).
DO use the full height available between unit and steam
nozzle to provide maximum slope (min 12-20% for
condensate to drain back to the steam cylinder (or down
to a condensate separator). Always provide a continuous
slope.
DO provide adequate support to prevent sagging.
- fit pipe clips every 30-50cm (12"-20") support straight
lengths on cable trays or in heat resistant plastic pipe.
DO use a Vapac condensate separator or simple trapped
pipe connection to drain off condensate from extended
steam lines.
DO ensure radius hose bends are fully supported to
prevent kinks developing when in service.
DO add extra insulation to steam hose for longer runs
(2m-5m (6ft-1 5ft) and in cold ambient conditions to avoid
excess condensate and reduction in delivered output.
DO arrange for the condensate from the steam nozzle to
be discharged into the tundish installed for the drain
water from the humidifier. Use 6mm (1/4) diameter
(1OO°C / 212°F rated) tubing to connect to 6mm (1/4")
copper pipe or to discharge direct into the tundish.
DON'Ts
DON'T allow steam hose to develop kinks or sags.
DON'T include horizontal runs or 900 elbows in the
steam line.
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