SKGE3 Gas Fired Humidifier
Installation Instructions and User Manual
24
Stage 6 – Combustion Air Installation
CAUTION
Combustion and room ventilation air must conform to local codes and regulations.
Air for combustion MUST not be contaminated by halogens, ammonia, bromides,
chlorides, fluorides, iodides or dust. Excessive exposure of humidifier to these
contaminants will result in performance related problems.
A humidifier that may be operated in toxic environments must be equipped with
ducted combustion air installation.
The operation exhaust of fans such as ventilation fans or other combustion
appliances can create a negative pressure condition on the humidifier. Adequate air
supply must be provided for the ventilation devices, in addition to that required by the
humidifier.
Any installation work must be carried out by suitably qualified personnel.
With the exception of ducted combustion air installation, do not locate units in tightly
sealed rooms or small compartments.
Combustion and ventilation air must be supplied through one permanent low-level
and one permanent high-level opening communicating directly with the outside air.
Air intake(s) location must be at a sufficient height above ground level to prevent
blocking by accumulated debris.
The SKGE3 Steam Humidifier has filtered air openings through the front door.
Do not block or obstruct the air openings of the humidifier.
The humidifier is factory adjusted for correct performance. Do not alter throttle
setting or restrict blower combustion air inlet.
Combustion Air
Specification -
Natural
Ventilation
Model
Number
of
Modules
Natural Ventilation
Installation (2)
Minimum
Low level
opening -
inlet
(cm
2
)
Minimum
High level
opening -
outlet
(cm
2
)
SKGE3-0501 N/P
1
540
270
SKGE3-0701 N/P
1
558
549
SKGE3-0801 N/P
1
567
554
SKGE3-1001 N/P
1
743
641
SKGE3-1202 N/P
2
770
655
SKGE3-1502 N/P
2
954
747
SKGE3-1702 N/P
2
1031
785
SKGE3-2002 N/P
2
1215
878
SKGE3-2503 N/P
3
1427
983
SKGE3-2703 N/P
3
1503
1022
SKGE3-3003 N/P
3
1688
1114
SKGE3 3504 N/P
4
1899
1220
SKGE3-3704 N/P
4
1976
1258
SKGE3-4004 N/P
4
2160
1350
Note 1: Information of the above table is from BS6644, Specification for Installation
of gas-fired hot water boilers of rated inputs between 70 kW (net) and 1.8 MW.
Note 2: These minimum openings section are specified for the combustion air
requirement of the SKGE3 Humidifier. If other gas fired appliances are installed in
the same room, openings will have to be increased to be able to supply adequate
combustion air for all the appliances.
!
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