Des Champs Technologies Air-Trap DMS Series Iom Manual

DMS-Series: IOM
Negative and/or Positive Pressure
Waterless Trap
This is a guide to the user of
a DMS-Series Air-Trap during
installation, commissioning,
operation, or periodic maintenance.
For use as condensate trap for
Mini-split and Fan-coil AC units.
Product Description
The DMS-Series Air-Trap allows water to drain from
HVAC equipment and simultaneously prevents air from
escaping from or entering the equipment by way of the
condensate drain line.
The DMS-Series Air-Trap does not require standing
water to prevent gas (typically air) from flowing through
the condensate drain line. With the occurrence of
condensate, or other water sources within the unit, the
water flows out of the HVAC unit, but no gas enters or
leaves. When there is no production of condensate or
water, there is no water in the trap and there is no gas
flow through the trap. Install the DMS-Series Air-Trap in a
vertical orientation.
Installation
When operating with
negative pressure (supply
fan drawing through the
coil) or positive pressure
(supply fan blowing
through the coil) install the
DMS Air-Trap in a vertical
orientation with the open
end of the connection
clips pointing upward
(TOP written on top end)
as shown in Figure 1.
Condensate enters the top
end of the trap.
DO NOT USE EXCESS CEMENT.
drain line to the trap connections, use
of too much cement could interfere with
connecting tabs or ball valve movement.
When connecting
Figure 1. DMS operation
is vertical
TOP
CONDENSATE
FLOW
clips pointing
upward
3/4" PVC
fitting
20 mm PVC
fitting
5/8" ID drain
hose