Condair HE2, Инструкция по установке и эксплуатации

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3.3.5 Step 4 - Install Drain Pipework
The Evaporative Module features a gravity drain and overflow which must be connected to the main building
drain with 28mm copper or stainless pipework. The normally open drain assembly can be reversed to face in
the opposite direction to suit either left or right feed pipe-work. This drain assembly should be connected to
the main building drain via the 28mm push fit connection (with an appropriate fall for gravity drain) and must
be trapped to a suitable depth in accordance with the operating pressure of the AHU.
Please note: HE2 XL Systems do not have a combined drain and overflow. The system is supplied with drain
plumbing and a separate 32mm push fit elbow on the overflow. They should NOT be combined to ensure
adequate flow rate.
Drain Installation
When installing the drain, please allow an adequate fall for gravity drain.
NOTE: The drain connection must be made via an air gap.
Drain Trap Assembly
(Not supplied)
Drain Trap
For negative pressure AHU systems drain must be isolated. DO NOT com-
mon with AHU drains as backflow into humidifier may occur.
Drain Trap Sizing: Allow a depth of 25 mm (1”) for every 250 Pa (1”Wg) of
duct pressure (eg 1000 mm (4”) for 1000 Pa (4”Wg) duct pressure).