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Natco Fire-Coil Volume Water Heaters
GAP CLOSURE
DRAIN PLUG
DRAIN VALVE
REAR TILE
COVER
HEX HEAD
SCREWS
MANUAL RESET
HIGH LIMIT
SWITCH BOX
Figure 15. Heat exchanger reversal.
2-Stage/
Operating
Inlet
Controller
Header
Modulating (if installed)
Figure 16. Sensory bulb locations.
HEAT EXCHANGER
ASSEMBLY
Outlet
High Limit
REAR TILE COVER
FLOW SWITCH
CONDUIT
GAP CLOSURE
METAL CHANNEL
(FOR CAPILLARY TUBE)
TERMINAL STRIP
Retaining
Clip
Figure 17. Retaining clip removal.
Page 7
GROMMET
DRAIN
VALVE
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