Technical data

Energy Technology
Ltd.
25
16.0 hydraulic system
design
System type 1
Typical Typical Single MICROMAT EC boiler installation serving heating only where the boiler’s own in-built circulating
pump is used to circulate the water around the system (used only where system index resistance <1 metre). Flow
temperature may be fixed/constant or weather variable.
Condensate
Micromat EC
boiler
IV
Safety Valve
Flow to
system
OS
C
LSV
DOC DOC
CWM
IV
IV
Strainer
Return from
system
DOC
Expansion Vessel
OS = Outside air temperature sensor, used where
direct-on-boiler weather compensated flow
temperatures are required.
C = Room temperature controls e.g. RE2132
modulating room unit from RVR Ltd., or,
separate time clock & room thermostat.