Table of Contents
Advertisement
4.2.3.
Steam exchanger
In order to prevent dangerous WATER HAMMERING that
could rupture the exchanger and lead to the escape of
steam under pressure, you must:
- make sure that the Air Treatment Unit is level on
installation
- correctly size the flow control devices and the
condensate drains
- ensure the correct angle of inclination of the pipes
comprising the steam circuit.
Before starting up the system make sure that the heat
exchanger is correctly connected to it (fig. 19)
10
TCF installs steam batteries with angled or vertical pipes
(fig. 19) to ensure correct drainage of the condensate and
prevent it from accumulating inside the system. In Air
Treatment Units with this type of exchanger special care
must be taken to ensure that the base is level (see section
3.3.2.).
The steam system must be complete with all the
necessary regulating, filtration and safety devices, which
must be correctly sized.
Each heat exchanger must be fitted with a condensate
drain, which must be oversized to allow drainage of the
greater quantity of condensate that is formed during
system start-up.
Provision must also be made for the automatic shut-off of
the steam feed in the case of fan motor unit stop.
4.3.
CONNECTION OF HUMIDIFIER SECTIONS
4.3.1 .
Feed water
TCF recommends feeding the humidifier sections with
water that has a TOTAL HARDNESS of between 15°F and
25°F. Below 15°F the aggressiveness of the water could
damage the unit components, and the useful life of the
resins in the softening system would be drastically
shortened.
Over 25°F the efficiency of the humidifier system would
quickly diminish due to the build-up of scale.
Advertisement
Table of Contents
