IM-P661-02-US
TES Issue 2
10
We strongly 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 SpiraHeat
TM
is isolated.
-
Double check that all steam, condensate and water connections are correctly connected to
the Spirax SpiraHeat
TM
.
-
Check all flange bolts are tight.
4.1 Mechanical commissioning procedure:
-
Check that all of the electrical connections
are secure and as per the wiring diagram
(Section 3.3, Figure 4).
-
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). Siemens
electric valves can be manually opened
by pressing and turning the handwheel
clockwise.
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 85 psi g (6 bar 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 SpiraHeat
TM
.
-
Start the main secondary water circulating
pump(s), if fitted.
-
Check and confirm there is secondary water
circulation through the Spirax SpiraHeat
TM
.
-
Once circulation is confirmed, switch on
the main power to the control panel (local
isolator).
-
Turn the control panel isolation switch to ‘ON’.
4. Commissioning
Travel
indicator
Handwheel
Travel
indicator
Air inlet
Fig. 6
Fig. 7
Summary of Contents for SpiraHeat
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