Cabinet Replacement Parts (Diagram 1) |
| Item # |
Description |
Part # |
| 15 |
Exhaust Duct (Assembly) |
7855P-002 |
| 15-1 |
Exhaust / Intake Duct Clamps |
7855P-332* |
| 15-2 |
Exhaust / Intake Gasket |
7855P-210* |
| 15-3 |
Exhaust Duct |
7855P-333* |
| 15-4 |
Combustion Analyzer Port Plug O-Ring |
7855P-334* |
| 15-5 |
Combustion Analyzer Port Plug |
7855P-335 |
| 15-6 |
Intake / Exhaust Adapter O-Ring (85) |
7855P-256 |
| 15-7 |
Exhaust Duct Inner Adapter |
7855P-004* |
| 15-8 |
Exhaust Adapter O-Ring |
7855P-254 |
| 16 |
Air Intake Assembly |
7855P-411* |
| 16-1 |
Air Intake Cap |
7855P-337* |
| 17 |
Air Vent |
7855P-063 |
| 18 |
Air Vent Grommet |
7855P-339* |
| 19 |
PRV Ring |
7855P-269* |
| 19-1 |
PRV Rubber Pad |
7855P-339* |
| 20 |
Air Pressure Switch |
7855P-262 |
| 21 |
Control Panel Bracket |
7855P-412* |
| 22 |
Display Panel |
7855P-012 (new # 7865P-032) |
| 23 |
Display Panel Bracket |
7855P-413* |
| 24 |
Ignition Transformer |
7855P-007 |
| 25 |
Universal Control Board FT |
7855P-268 |
| 26 |
Terminal Block Bracket |
7855P-271* |
| 27 |
Manual Power Switch |
7855P-014* |
| 28 |
Terminal Block 6P - Combi |
7855P-272* |
| 29 |
Condensate Block APS |
7855P-017 |
| 30 |
Front Cover |
7855P-289* |
| 31 |
Display Panel Cover |
7855P-023* |
| 32 |
Exhaust Adapter Gasket |
7850P-041 |
| 33 |
Top Wall Mount Bracket |
7850P-068 |
| 34 |
Cabinet |
7855P-274* |
| 35 |
Bottom Wall Mount Bracket |
7855P-092 |
| 36 |
Wire Gland |
7855P-348* |
| 37 |
CH Pressure Gauge |
7855P-135 |
| . |
|
|
Water Piping Replacement Parts (Diagram 2) |
| Item # |
Description |
Part # |
| 38 |
DHW Outlet Pipe |
7855P-275* |
| 38-1 |
3/4 in. Pipe Gasket |
7855P-073 |
| 38-2 |
P-18 O-Ring |
7855P-047 |
| 38-3 |
1/2 in. Pipe Clip |
7855P-246 |
| 39 |
DHW Inner Block |
7855P-251 |
| 39-1 |
P22A O-Ring |
7855P-276* |
| 39-2 |
Pipe Adapter Clip |
7855P-277* |
| 40 |
DHW Outlet Adapter |
7855P-225 |
| 41 |
DHW Temperature Sensor |
7855P-094 |
| 42 |
DHW Inlet Pipe |
7855P-241* |
| 43 |
DHW Flow Sensor |
7855P-083 |
| 44 |
Mixing Valve |
7855P-043 |
| 44-1 |
Flow Sensor Clip |
7855P-278 |
| 44-2 |
P15 O-Ring |
7855P-044 |
| 45 |
DHW Outer Block |
7855P-259 |
| 46 |
DHW Inlet Filter Block |
7855P-279 |
| 47 |
Flow Restrictor |
7855P-280* |
| 48 |
DHW Inlet Filter |
7855P-281 |
| 48-1 |
P20 O-Ring |
7855P-282 |
| 49 |
DWH Inlet Block Cap |
7855P-283 |
| 50 |
DHW Inlet Adapter |
7855P-203* |
| 51 |
CH Block Cap |
7855P-283 |
| 52 |
CH Return Block With Filter |
7855P-248 |
| 52-2 |
P22 O-Ring |
7855P-276* |
| 53 |
CH Return Block with Filter Clips |
7855P-284 |
| 54 |
Pressure Gauge Clip |
7855P-285* |
| 55 |
CH Return Adapter |
7855P-227* |
| 56 |
Filter for CH Return Block |
7855P-265 |
| 57 |
CH Filter Clip |
7855P-286* |
| 58 |
CH Return Pipe |
7855P-287* |
| 58-1 |
3/4 in. Pipe Gasket |
7855P-073 |
| 59 |
CH Return Temperature Sensor |
7855P-097 |
| 60 |
3 Way Valve Assembly |
7855P-247 |
| 60-1 |
P25 O-Ring |
7855P-288 |
| 60-2 |
Pump Clip |
7855P-263* |
| 61 |
CH Supply Lower Pipe |
7855P-290* |
| 61-1 |
3/4 in. Pipe Gasket |
7855P-073 |
| 62 |
Internal Grundfos Pump / DHW Storage Pump |
7855P-456 |
| . |
|
|
Heat Exchanger Replacement Parts (Diagram 3) |
| Item # |
Description |
Part # |
| 63 |
Exhaust Temperature Sensor O-Ring |
7855P-092 |
| 63-1 |
Exhaust Temperature Sensor |
7855P-092 |
| 64 |
Exhaust Temperature Sensor Clip |
7855P-349 |
| 65 |
Exhaust Pipe Assembly |
7855P-415 |
| 66 |
Exhaust Pipe Gasket |
7855P-418 |
| 67 |
Storage Tank Clamp |
7855P-291* |
| 68 |
Storage Tank Bracket |
7855P-292* |
| 69 |
CH Supply Pipe |
7855P-293* |
| 69-1 |
3/4 in. CH Supply Pipe Gasket |
7855P-073 |
| 69-2 |
1 in. CH Supply Pipe Gasket |
7855P-074 |
| 70 |
Storage Tank |
7855P-294* |
| 71 |
CH Supply Temperature Sensor |
7855P-030 |
| 72 |
Water Level Detection Sensor (Low Water Cutoff) |
7855P-029 |
| 73 |
Flame Sensor Bracket |
7855P-356 |
| 74 |
Flame Sensor |
7855P-031 |
| 75 |
Flame Sensor Cover |
7855P-357 |
| 76 |
Heat Exchanger Assembly |
7855P-416 |
| 76-1 |
Burner Body Assembly |
7855P-417 (no longer available) |
| 76-2 |
Burner Body |
7855P-606* |
| 76-3 |
Burner Gasket |
7855P-419 |
| 76-4 |
Ceramic Fiber Burner |
7855P-420 (new # 7855P-438) |
| 76-5 |
Ignition Rod |
7855P-607 |
| 76-6 |
Ignitor Gasket |
7855P-252 |
| 76-7 |
Burner Overheat Switch |
7855P-066 |
| 76-8 |
Heat Exchanger Top |
7855P-619 (no longer available) |
| 76-9 |
Burner Refractory |
7855P-612 (no longer available) |
| 77 |
Condensate Trap Assembly |
7855P-605 |
| 77-1 |
Condensate Trap O-Ring (P22A) |
7855P-276 |
| 94 |
Sight Glass Assembly |
7855P-401 |
| . |
|
|
Combustion Chamber Replacement Parts (Diagram 4) |
| Item # |
Description |
Part # |
| 78 |
Burner Inlet Chanel (with Damper) |
7855P-424 |
| 79 |
Air Damper |
7855P-618 |
| 80 |
Air Damper Guide |
7855P-369 |
| 81 |
Fan Outlet Gasket |
7855P-425 |
| 82 |
Burner Inlet Chanel Gasket |
7855P-426 |
| 83 |
Fan and Mixer Assembly |
7855P-427 |
| 83-1 |
Fan |
7855P-025 |
| 83-2 |
Fan O-Ring |
7855P-371 |
| 83-3 |
Air-Gas Mixer (Inner Part) |
7855P-609* |
| 83-4 |
Air-Gas Mixer Gasket |
7855P-428* |
| 83-5 |
Air-Gas Mixer (Outer Part) |
7855P-608* |
| 84 |
Air Intake Hose Top Clamp |
7855P-429 |
| 85 |
Air Intake Hose |
7855P-430 |
| 86 |
Air Intake Hose Bottom Clamp |
7855P-429 |
| 87 |
APS Hose Fitting |
7855P-375* |
| 88 |
Gas Valve Assembly |
7855P-431 |
| 88-1 |
Gas Valve Outlet Adapter |
7855P-232 |
| 88-2 |
Gas Valve O-Ring |
7855P-076 |
| 88-3 |
Gas Valve |
7855P-034 |
| 88-4 |
Gas Valve Bracket |
7855P-436* |
| 89 |
1/2 in. Gas Pipe Gasket |
7855P-221 |
| 90 |
Gas Orifice |
|
| |
- Natural Gas 8.3 mm |
7855P-610 |
| |
- Propane (LP) 6.3 mm |
7855P-435 |
| 91 |
Gas Pipe (to Mixer) |
7855P-432* |
| 92 |
Gas Pipe (to Gas Valve) |
7855P-295* |
| 93 |
Gas Inlet Adapter 3/4 in. |
7855P-382 |
Nuts and Bolts (Not Shown) |
| Item # |
Description |
Part # |
| B-1 |
M3 X 6 PH + MS |
7855P-384 |
| B-2 |
M4 X 8 PH + Self Taping |
7855P-385 (purchase from local hardware store) |
| B-3 |
M4 X 8 TH + Self Taping |
7855P-386 (purchase from local hardware store) |
| B-4 |
M4 X 8 TH + MS |
7855P-387 |
| B-5 |
M4 X 10 FH + M/S |
7855P-388 (purchase from local hardware store) |
| B-6 |
M4 X 10 TH + Self Taping |
7855P-389 (purchase from local hardware store) |
| B-7 |
M4 X 10 TH + M/S |
7855P-390 |
| B-8 |
M4 X 10 Flat Head |
7855P-391 (purchase from local hardware store) |
| B-9 |
M4 X 12 PH + M/S |
7855P-392 (purchase from local hardware store) |
| B-10 |
M4 X 12 TH + M/S |
7855P-393 (purchase from local hardware store) |
| B-11 |
M4 X 14 PH + Self Taping |
7855P-394 |
| B-12 |
M4 X 15 PW + M/S |
7855P-395 (purchase from local hardware store) |
| B-13 |
M4 X 20 TH + Self Taping |
7855P-396 (purchase from local hardware store) |
| B-14 |
M5 X 14 Flange Bolts M/S |
7855P-397 (purchase from local hardware store) |
| B-15 |
M5 X 10 TH+ M/S |
7855P-453 (purchase from local hardware store) |
| B-16 |
M4 X 9 PH.PW + Self Taping |
7855P-296 (purchase from local hardware store) |
| N-1 |
M4 Nut |
7855P-398 |
| N-2 |
M5 Nut |
7855P-399 |
| . |