Instructions / Assembly

whl-004 Rev. 000 Rel. 013 Date 5.1.18

NUMBER DESCRIPTION PART NUMBER NUMBER DESCRIPTION PART NUMBER

31 Heat Exchanger Assembly 7850P-032 36 Flame Detector Sensor 7850P-031

31-1 Exhaust Pipe Assembly (Upper) 7850P-033 37 Mixing Valve 7850P-054

31-2 Exhaust Temperature Sensor 7850P-070 38 HX Temperature Sensor 7850P-081

31-3 Exhaust Gasket 1 7850P-071 39 HX Overheat Switch 7850P-051

31-4

Exhaust Pipe Assembly (Down)

w/ Condensate Collector Pan

7850P-034 40 DHW Outlet Pipe 7850P-049

31-5 Exhaust H/X Gasket 7850P-072 41 Water Piping Clip 7850P-055

31-6 N/A N/A 42 DHW Inlet Pipe 7850P-048

32 Fan Assembly 7850P-006 43 Ceramic Heater 7850P-076

32-1 Fan 7850P-002 44 Gas Valve Pipe (Upper) 7855P-039

32-2 Blower O-Ring 7850P-003 45 Gas Valve Pipe (Lower) 7850P-040

32-3 AGM (Actuator) 7850P-004 46 Gas Valve Adapter (Straight) 7850P-077

33 Silencer Elbow 7850P-036 47 Gas Valve Assembly w/ Plug 7850P-078

34 Silencer Body 7850P-035 47-1 Gas Valve 7850P-012

35 Burner Assembly 7850P-011 47-2 Gas Valve Plug 7850P-013

35-1 Burner Head 7850P-007 48 Gas Valve Adapter (90 Degree) 7850P-079

35-2 Ignition Rod Bracket 7850P-010 49 Gas Valve Bracket 7850P-080

35-3 Ignition Rod 7850P-008 50 Bottom Heat Exchanger Brackets (Left) 7850P-028

35-4 Blower Head Bracket 7850P-074 51

Bottom Heat Exchanger Brackets

(Right)

7850P-091

35-5 Overheat Sensor (Burner) 7850P-009 52 Top Heat Exchanger Brackets 7850P-082

35-6 Metal Fiber Assembly 7850P-075

Table 44 - 199 Model Heat Exchanger Replacement Parts

Figure 65 - 199 Model Heat Exchanger Replacement Parts