6-3
DIAGRAMS
VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS
ITEM # DESCRIPTION PART # QTY
5 Fan NRG 137 240-048 1
10 O-Ring 150-073 1
15 Fan Adapter Plate 180-023 1
20 Screw, M4x10 Tapping, Flat
Head, Equipped w/Fan
3
25 Air Intake Base 180-017 1
30 Swirl Plate 180-020 1
35 Air Intake Cover 180-018 1
40 Gas Valve 180-022 1
45 Spacer, #8, 1/8” Thick, 1/4” OD 150-092 3
50 Screw, M4 x 30, Tapping,
Equipped w/Gas Valve
3
55 Screw #10-32 x 7/8” Hex Head 150-110 4
60 Gasket, Fan - Fan Coupler 250-381 2
65 Fan Coupler Spacer 250-370 1
70 Nut, #10-32, With External Tooth
Washer
150-111 4
75 Switch, Snap Disk, Manual Reset,
230F
240-030 1
80 Switch, Snap Disk, Auto-reset,
203F
240-032 1
85 Mounting Plate, Snap Disk 250-333 1
90 Ignition Module (alternate
Capable Controls 240-049)
240-004B 1
95 Screw, Sheet Metal, #8 x 3/4” 150-102 2
100 Sensor, Water Pressure 240-006 2
105 Enclosure 250-312 1
110 Mounting Bracket, Gas Valve 250-316 1
115 Sensor, Air Pressure 240-003 1
120 Transformer 240-008 1
125 Side Cover, Controller 250-327 1
130 Screw, #6-32 x 3/8” 150-014 6
135 Chassis, Controller 250-107 1
140 PCB, Controller 230-001 1
145 Spacer, Male-Female, #6-32 x
3/4”
150-096 4
150 Front Cover, Controller 250-108 1
155 Pipe Clamp 150-039 3
160 2” ABS Intake Assembly 1
165 Clip Nut, M10, 19mm Center 150-105 4
170 Heat Exchanger 170-009 1
175 Refractory, Outer 250-287 1
180 Refractory, Inner 250-306 1
185 Gasket, Heat Exchanger Lid 250-328 1
190 Lid, Heat Exchanger 250-284 1
195 Screw, M10 x 55, Hex Head 150-106 4
200 Washer, Fender, M10 150-104 4
205 Ignitor 240-002 1
210 Gasket, Ignitor 250-050 1
ITEM # DESCRIPTION PART # QTY
215 Screw, M4 x 8 150-091 4
220 Sight Glass Holder 250-309 1
225 Gasket, Sight Glass 250-060 2
230 Sight Glass 250-059 1
235 Gasket, Burner 250-308 2
240 Burner 180-021 1
245 V-Clamp 150-071 1
250 Fan Coupler 250-280 1
280 Front Cover, VFC 225 250-315 1