309 B/C – 03/03 A – page
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Schematic Diagrams
Heat Pump Version (M4AC080CR/100CR/120CR/150CR)
Ref r i ger ant Fl ow Di r ect i on When Heat i ng
7? Heat i ng Cap. Tube
11? Wat er Pump
3? Accumul at or
Ref r i ger ant Fl ow Di r ect i on When Cool i ng
1? Compr essor
9? Recei ver
LEGEND
2? Four Way Val ve
6? Cool i ng Cap. Tube
10? BPHE
12? Wat er Fl ow Swi t ch
4? Copper Tube Al umi ni um Fi n
Heat Exchanger
8? Check Val ve
Chi l l ed Wat er
I n
Chi l l ed Wat er
Out