Bosch 1000P Manuel utilisateur

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CT-13

page 1 of 2

rev 10/06

Bosch Water Heating

340 Mad River Park, Waitsfield, VT 05673

©BBT NORTH AMERICA CORPORATION

Bosch Group

REMOVING AND CLEANING

BURNERS

MODELS: 1000P, 1600P, 1600H,

260PN, 425PN, 425HN

A. Removing pilot assembly

Model 1000P, 1600P, 260PN, 425PN (Fig 1):

1. Shut off gas and water to heater, then remove front

cover.

2. Remove wire clip holding top of pilot tube into

bracket.

3. Move lower end of pilot tube to left to release from

black clip on gas valve. Be sure to catch air screen

attached to base of pilot tube.

4. Pull upwards on upper end of pilot tube to release

from bracket.

5. Remove black clip from bracket to release spark elec-

trode.

6. Gently press down on top of thermocouple to release

it from bracket.

FIGURE 3

FIGURE 4

Model 1600H, 425HN (Fig. 2):

1. Shut off gas and water to heater, then remove front

cover.

2. Remove both pilot bracket screws and pilot shield from

front of burners.

3. Remove pilot assembly from burner bracket. Be sure

to catch air screen secured to base of pilot assembly.

B. Removing burners

1. Remove 2 burner set screws on the right side of the

gas valve. (Fig. 2)

2. Remove four screws from both right and left burner

brackets and set aside. (Fig. 3)

3. Push entire burner assembly up to seperate from the

gas valve.

4. Tilt right side of burners up and slide them out at an

angle to the left. (Fig. 3)

Burner bracket location

(425PN model shown)

FIGURE 2

Pilot shield

Pilot bracket

screws

Burners

Pilot air

screen

1600H, 425HN pilot assembly

1000P, 1600P, 260PN, 425PN pilot assembly

FIGURE 1

Pilot air screen

Pilot wire clip

Burners

Pilot tube

Thermocouple

lead

Pilot air

screen

Burner set

screws

CT-13

page 2 of 2

rev 10/06

Bosch Water Heating

340 Mad River Park, Waitsfield, VT 05673

©BBT NORTH AMERICA CORPORATION

Bosch Group

C. Cleaning burners

1. Use a soft wire brush across burner fins to loosen any

debris and then vacuum out.

2. Check to see that the 18 brass gas injectors in the

rear of the burner assembly are clean. To access,

remove 8 Philips head screws to the left and right of

the two center brass Philips head screws at the rear

of the burner. The burners should separate into two

halves exposing injectors. Blow clean with com-

pressed air or carburetor cleaner and wipe dry with

cloth. Do NOT poke injectors or attempt to clean with

drill bits, wires or other objects. Clean rear venturi

passages with a pipe cleaner and soapy water. Rinse

clean and let dry before reinstalling. Follow instruc-

tions in reverse to reconnect burner halves.

D. Reinstalling burners

1. Reinstall burners into burner area.

2. Reinstall set screws on right side of gas valve and

tighten.

3. Reinstall right and left burner brackets with the four

screws. The brass screws attach to frame.

E. Reinstalling pilot assembly and tube

Models 1000P, 1600P, 260PN, 425PN:

1. Reinsert thermocouple and snap into place. Thermo-

couple tip should sit 1/4” above the burner bed.

2. Put spark electrode into place and attach with clip.

3. Slide upper end of pilot tube into bracket on burner

assembly and reinsert pin.

4. Slide base of pilot tube to the right into clip. Ensure

pilot air screen is installed between pilot tube and pi-

lot orifice.

Models 1600H, 425HN:

1. Slide pilot air screen over pilot tube.

2. Slide pilot assembly into place. Reinsert pilot shield

and secure with screws to the burner assembly.

F. Returning heater to service

Models 1000P, 1600P, 260PN, 425PN:

1. Turn on gas and light pilot. Test for possible gas leaks

where burners connect to the gas valve.

Models 1600H, 425HN:

1. Turn on gas and check for leaks where the burners con-

nect to gas valve by applying leak detecting solution as

you initiate water flow to activate the heater. Allow

enough time to bleed all air in gas line. Bubbles are a

sign of a leak.

All models:

2. If there are bubbles at either connection immediately

shut off water and gas. Loosen the burner set screws

on the right side of gas valve. Remove the burners and

inspect the o-ring. Replace if damaged. Reseat burners

and tighten set screws. Check again for leaks.

3. Replace front cover when complete.

REMOVING AND CLEANING

BURNERS

FIGURE 5

Burners disassembled

Burner fins

Burner venturi passage

Gas injectors

Ce manuel convient aux modèles suivants

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