User Guide

RH180 Manual 31
Parts Breakdown
ITEM
NO.
DESCRIPTION OF ENGINE PARTS
2 EXHAUST DUCT BOX
3 OVERHEAT SWITCH
4 HEAT EXCHANGER
5 THERMAL FUSE
6 ELECTRODE
7 FLAME ROD
8 MANIFOLD ASSEMBLY
9 P.C.B.
10 IGNITER
11 SURGE PROTECTOR
12 GAS CONTROL ASSEMBLY
13 GAS CONNECTION
14 DRAIN VALVE
15 HOT WATER OUTLET
17 COMBUSTION FAN
18 WATER INLET
19 WATER FILTER ASSEMBLY
20 WATER FLOW SENSOR
21 WATER FLOW CONTROL DEVICE
23 OPERATION UNIT
24 COMBUSTION AIR ASSEMBLY
25 FLAMMABLE VAPOR ASSEMBLY
26 BURNER THERMISTOR
27 COMBUSTION CHAMBER FRONT PLATE ASSEMBLY
28 OUTGOING WATER THERMISTOR
29 WALL INSTALLATION BRACKET
30 CO SENSOR
31 EXHAUST OUTLET ASSEMBLY
32 FRONT PANNEL ASSEMBLY
33 MAIN BURNER
32
33
1
2
3
4
7
14
5
13
16
11
18
17
10
15
19
12
8
6
9
ITEM
NO.
DESCRIPTION OF TANK PARTS
1 ENGINE
2 PUMP
2*
ALTERNATIVE PUMP WITHOUT FLANGE
(OPTIONAL)
3 T & P VALVE
4 ANODE
5 J-TUBE
6 DIPTUBE
7 OUTLET NIPPLE
8 DRAIN VALVE
9 THERMOSTAT BRACKET
10 THERMOSTAT BRACKET
11 FLEXIBLE HOSE
12 FLEXIBLE HOSE
13 FRONT COVER
14 SIDE TRIM
15 THERMISTOR
16 SHOE-HORSE GROMMET
17
HEXAGONAL REDUCING BUSHING
18 CLOSE NIPPLE
2*
(Oponal aluminum anode part # is 107000127)