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FLOW AND RETURN LINE LAYOUT
Ensure that the combined length of the flow and return piping for each collector set is approximately the
same. This will result in even flow to all collectors and optimise performance.
NOTE
cold flow to collector
heated flow from collector
cold flow manifold
heated flow manifold
Pipework to collectors is ½". Pipe sizing for manifolds shown in the section 'Pipe And Pump Sizing' on page 14.
COLLECTOR SPACING REQUIREMENTS
Number of collectors
per storage tank
30
40
50
Rinnai
A
B
C
80
Collector
1 x EVT30A
2 x EVT20A
2 x EVT25A
25
INSTALLATION - EVACUATED TUBES
Temperature sensor
lead fitted to header
on one set of collectors
DIM A
-
3664
4444
EVT DD Solar Pre Heat System Operation and Installation Manual
200
DIM B
DIM C
-
2472
3464
1692
4244
2082
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