ENG
4.1 Installing P-traps on header drains
A condensate trap should be installed on the ¾" pipe connection
provided on the bottom of each header. The connection is ¾" male NPT
for North American markets and ¾" Gas for the other regions (for the SA0
single-pipe: ½" GAS or ½" NPT). Given the minimal pressure inside the
header, a P-trap is generally suitable for the header drains. The fi ttings
and pipe for the P-trap (shown in Fig.3.a) are not included with the
ultimateSAM distributor.
If P-traps are used on the drains, the seal height should be suffi cient such
that the water column creates a pressure at least 500 Pa (50 mm or 2"
H2O) greater than the static pressure in the header. (Refer to the design
manual for more information on static pressure of the header.) While a
seal height of 150mm (6") is adequate for most installations where the
condensate trap drains into a sump inside the duct, check the design
manual for details on the back pressure generated by distributor being
installed.
Nota: Check local requirements regarding the minimum
recommended seal height and drop height for the installation.
SAB/SAT Models
Drop
Height
SA0 Models
Drop
Height
Note: The fi ttings and pipe for the condensate drain shown in
Fig.3.a and 3.b are not included with the ultimateSAM distributor.
If the P-trap empties outside the duct or AHU as shown in Fig.3.a, the seal
height and drop height must allow for the static pressure inside the duct
or AHU in addition to the static pressure in the header. If the space limits
the seal height for the condensate drain, a diff erent type of trap, e.g.,
F&T (fl oat and thermostatic) trap could be used, or a distributor having a
lower backpressure could be selected.
"ultimateSAM - user" +0300070ES - rel. 1.0 - 23.05.2013
4. DRAIN CONNECTIONS
Seal Height
Fig. 4.m
Seal Height
Fig. 4.n
4.2 Trap, strainer, and separator kits for
distributor inlets connected to
pressurized steam supplies
For installations in which the ultimateSAM distributor is supplied with
pressurized steam, a trap and strainer are required at the inlet of the
control valve. A variety of trap and strainer kits are available as accessories.
(Fig.3.b-c)
1
3
3
4
Actuator
Valve
Y Strainer/Filter
Float and Thermostatic trap
The system for identifying trap, strainer, and drain accessories is shown
in Table 3.a.
Nota: Not all of the possible combinations shown on the table are
available.
16
2
4
Fig. 4.o
1
2
Fig. 4.p