IM-P481-04
CTLS Issue 4
12
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TRANSLATION RUN OVER
We recommend that you use the service and
support of a Spirax Sarco commissioning engineer.
Details of this service can be found by contacting
Spirax Sarco.
Note:
Pre commissioning requirements:
-
In most new installations, dirt collects in the
steam pipeline during construction of the
system. It is essential to flush this out prior to
commissioning.
-
Ensure the secondary (cold side) of the system
is charged and all air is bled from the system.
-
Ensure that all main isolation valves for both
steam and water are isolated.
-
Ensure that the electrical supply to the Spirax
Sarco EasiHeat
TM
is isolated.
-
Double check that all steam, condensate and
water connections are correctly connected to
the Spirax Sarco EasiHeat
TM
.
-
Check all flange bolts are tight.
Fig. 6
Handwheel
Travel
indicator
Travel indicator
Air inlet
Fig. 7
4.1 Mechanical commissioning
procedure:
-
Check that all of the electrical connections are
secure and as per the wiring diagram (Section
3.3, Figure 2).
-
Dry commissioning valve stroke check - An
initial valve stroke check should be carried out
to ensure free movement of the valve stem.
1.
For the electric actuated control valve, use the
manual override on top of the actuator to raise
and lower the actuator spindle between the
two travel indicators located on the side of the
pillar (Figure 6).
2.
For the pneumatic actuated control valve,
remove the existing air supply and connect an
independent air supply to the actuator (pressure
not to exceed 6 bar g
[
87 psi g
]
), allow the valve
to fully open, remove the air supply from the
actuator allowing the valve to close. Reconnect
the original pipework (Figure 7).
-
Open the secondary (cold side) isolating valves
downstream of the Spirax Sarco EasiHeat
TM
.
-
Start the main secondary water circulating
pump(s) if fitted.
-
Check and confirm there is secondary
water circulation through the Spirax Sarco
EasiHeat
TM
.
-
If the circulation is okay, switch on the main
power to the control panel (local isolator).
-
Turn the control panel isolation switch to ‘ON’.
-
Follow the quick start-up guide (Section 4.4)
before opening the steam isolations valves.
4. Commissioning
