10.Any distributor longer than 3 feet (1 meter) should be supported at its end with a threaded rod through top or bottom of duct. See Figure #10.
11.It is recommended that single distributors are mounted near the bottom of the duct to ensure the steam is dispersed into the majority of the air flow. See Figure #12.
Figure #12
Single Steam Distributor Installation
12.Using duct mounting template provided, cut a hole in side of duct just large enough to admit steam manifold and condensate drain pipe assembly. Use four sheet metal screws to attach mounting plate to side of duct. See Figure #11 and #12.
13.With multiple steam distributors, the top steam distributor should be at least 8" below top of duct to avoid possible condensation on surface of duct. The remainder of space
Figure #13
Multiple Steam Distributors
8" | Steam Header |
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below is proportioned accordingly. See Figure #14. For short steam absorption systems see Figure #13.
Figure #14
Multiple Steam Distributors for Better Mixing
MIN. H = 16" |
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8" |
| 4" | 4" | 4" |
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4" |
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4" |
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2/5 |
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H |
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2/5 |
| Min. W = 12" | ||
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1/5 |
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| H 20" |
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| W 17" |
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1/3 | 1/3 | 1/3 |
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PLUMBING |
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All water supply and drain line connections should be installed in accordance with local plumbing codes.
WATER SUPPLY LINE
1.Humidifier is intended to operate on potable (cold) tap water.
2.If the raw water is very hard, Liebert can provide longer cylinder life on softened water. However, softened water is more conductive and more corrosive. Some hardware and/or software changes may be required, at time of order or in the field. Consult local representative.
3.DO NOT use a hot water supply to humidifier. Minerals will adhere more easily to surfaces and the fill valve’s small flow regulating orifice could become plugged.
4.Standard fill valves are sized for water pressure ranging from 30 to 150 psig. For other pressures, consult local representative. This pressure should be measured at the humidifier if the water pressure is suspect.
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