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Posted by HeatPro on November 19, 2008 at 23:58:44:
In Reply to: HONEYWELL L8148A-1017 AQUASTAT posted by pete on November 19, 2008 at 19:25:49:
From Terry Love's board someone answered:
1090 IS 180-240 DEGREES WITH 15 DEG DIFFERENTIAL
1017 IS 140-240 DEGREES WITH 8 DEG DIFF.
If so, there shouldn't be a problem if you need the high limit to limit at 180F water.
You are asking the question as if there is no system to limit. A system with some kinds of plastic tubing or a floor radiant system wouldn't want water over 140F.