INSTALLATION, OPERATION and MAINTENANCE MANUAL | 53
Startup process (suffix C is for Cold liquid circuit; H is for Hot liquid circuit)
STEP COLD MEDIUM HOT MEDIUM
1 Start pump (1C)
2
Open inlet valve (2C) slowly, building
inlet pressure at a rate of less than 1.7
bar (25 psig) every 10 seconds. Monitor
(7) and record pressure in at least these
intervals.
3 Vent (3C) then close (3C)
4 Start pump (1H)
5
Open inlet valve (2H) slowly, building
pressure at a rate of less than 1.7 bar
(25 psig) every 10 seconds. Monitor (7)
and record pressure in at least these
intervals.
Temperature increase should be limited
to 10C (18F) per minute. Therefore, it is
necessary to increase the hot medium
pressure (and flow) in small steps to
comply. Seek written advice for your
specific application if this temperature
change restriction cannot be met.
6 Vent (3H) then close (3H)
7 Continue steady state operation Continue steady state operation
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