Install Instructions

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IX. System Piping (continued)
Figure 9.1: Near Boiler Piping
CAUTION
Do not reverse supply/inlet and return/outlet piping. Reverse piping will cause premature heat exchanger
failure. Positively assure supply/inlet and return/outlet pipes are properly connected as shown in this manual.
B. Standard Piping Installation Requirements (continued)
11. Low Water Cut-off (may be required by local jurisdiction)
Auto Reset Low Water Cut-off: Kit (P/N 105591-01) is available. Alternatively, use Hydrolevel Safgard 1100,
Taco LTR Series or equivalent.
• Manual Reset Low Water Cut-off: Kit (P/N 108182-01) is available. Alternatively, use Hydrolevel Safgard
1100M.
LWCO plugs into the low voltage wire harness (refer to Section X "Wiring"). Install the low water cut-off in a tee
above the top of the heat exchanger. See Figure 9.2 for LWCO location.
12. CSD-1 Kit (P/N 108183-01) Contains manual reset high limit and manual reset LWCO.