SKG3 Gas Fired Humidifier
Installation Instructions and User Manual
22
Stage 5 – Water Drain Connection
Water drain installation must conform to local codes and regulations.
Any installation work must be carried out by suitably qualified personnel.
Water Drain
Specification
Water drain temperature: 140
˚F (+60˚C)
Model
Main Drain Outlet
Connection size
Pan Drain outlet
connection size
SKG3-110 to 210
Ø
¾’’ (20mm)
Ø
½’’ (15mm)
SKG3-265 to 810
Ø
1 ½’’ (40mm)
Water Drain
Installation
Water drain outlet connection must be connected to drain pipe of sufficient size.
Minimum water drain pipe gradient must be
¼’’ (6.5mm) per foot (300mm) horizontal
run.
No drain trap is required.
Pan drain connection must be connected to drain pipe through separated line.
Drain connection - Fig. 32
Pan Drain
Connection on
Weather Proof
Enclosure
Weather proof enclosure is provided with a pan drain at the base of the SKG3
humidifier.
Weather proof enclosure base pan drain outlet dimension - Fig. 33
(dimensions in bracket are in mm)
Weather Proof
Enclosure
Water Drain Valve
The weather proof enclosure is equipped with a normally open valve, enabling the
humidifier to drain all water during a power failure, in order to prevent water from
freezing within the unit. During normal operation, the humidifier reduces drain water
temperature to 140°F (60°C).
CAUTION:
During a power failure, the drain water temperature is not reduced.
Installed drain piping must be rated to 212°F (100°C).
!
SKG3
4'
’ (102)
Ø 1½'
’ (38)
minimum
Main Drain
Pan drain
24
'’
(61
0)
12
'’
(30
5)
1/2
xU
U
Pan drain outlet
ؽ'’ (15)
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