Nortec SE Series - Manual (Page 18)

15 | Installation
Boiler Steam and Boiler Condensate Return
Figure 10: SE Boiler Steam and Condensate Connection
Note:.

Pressurized steam line installation to be performed by a qualified installer.

Damage to SE heat exchanger will occur if it is exposed to pressure above 20 psi..
A safety relief valve must be installed to prevent the SE from being exposed to
pressure in excess of 15 psi when the SE is connected to a medium or high
pressure boiler via a pressure reducing valve.

The steam supply line must be designed to provide design pressure at the CV valve
when there is 100 % demand (CV valve completely open). Pressure losses in the
steam supply line will reduce SE output.

Condensate must be drained to a non-pressurized boiler condensate return line.

Pressurized condensate
header Not pressurized
condensate header
(slope down)
F&T Trap
Pressure
gauge (optional)
Isolation Valve
Wye Strainer
CV Valve
(see table 3)
Condensate Drain
Port (see table 3)
Boiler steam
inlet port
(see table 3)
Boiler steam supply
line. Max 15 psi, Min 5 psi
measured at CV Valve
6 in.
(15 cm)
Max
Actuator
Condensate drain line.
Gravity feed to boiler.
Use pump if condensate
must be lifted.
Note: Nortec supplies CV valve, actuator
and wye strainer. All other
components and fittings by others.
Boiler steam
inlet port location
on SE 1050
Slope
dow
n only