外表长得一样,但里面不一样 3 N5 `: w3 R) B% k2 h1 U0 ?% _6 o/ k6 u! E! b
one stage T-STAT has "w" wire terminal 9 ?, o f& `$ y3 b! Ftwo stage T-STAT has "w1" and "w2" wire terminal, H5 k y+ ^; t% u, a5 \# y. o
2 ~7 O2 J4 D' o8 g; V: |) ^" c4 j: ^
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