AquaStar 125B NGS specifications Interior Components Diagram Parts List 125BS

Page 19

Fig. 11

INTERIOR COMPONENTS DIAGRAM

AND PARTS LIST 125BS

1

Cover

8 705 421 033

 

2

Cap cover

8 703 304 011

 

3

Water connection gasket

8 710 103 043

 

4

Draft divertor

8 705 505 354

 

5

Heat exchanger

8 705 406 189

 

6

Hot water pipe

8 700 705 431

 

7

Cold water pipe

8 700 705 294

 

8

Heat exchanger washer

8 710 103 045

 

9

Overheat sensor (ECO)

8 707 206 017

 

10

Main burner assembly

8 708 120 296

LP

 

Main burner assembly

8 708 120 298

NG

11

Pilot burner assembly

8 718 105 051

 

11a

Pilot filter screen

8 700 507 055

 

12

Piezo electrode

8 708 107 002

 

13

Pilot orifice

8 708 200 005

NG

 

Pilot orifice

8 748 200 173

LP

14

Pilot Tube

8 710 707 166

 

15

Thermocouple

8 747 202 083

 

16

Burner assembly washer

8 710 103 060

 

17

Gas valve

8 707 011 467

LP

 

Gas valve

8 707 011 469

NG

18

Gas supply pipe

8 700 705 464

 

19

Electromagnet

8 747 201 094

 

20

Electromagnet washer

8 700 103 144

 

21

Gas filter

8 700 507 051

 

22

Thermocable

8 747 202 078

 

23

Thermostat

8 707 206 039

 

24

O ring Thermostat

8 700 205 101

 

25

O ring Thermostat

8 700 205 041

 

26

Water valve assembly

8 707 002 393

 

27

Pushrod

8 703 406 204

 

28

Water valve diaphragm

8 700 503 050

 

29

Slow ignition valve

8 708 503 062

 

30

Water valve setting screw

8 703 404 092

 

31

O ring setting screw

8 700 205 050

 

32

Water valve venturi

8 708 205 235

 

33

Water valve piston assembly

8 708 500 230

 

34

Water inlet filter

8 700 507 059

 

35

Water elbow fitting

8 700 703 114

 

36

Water valve set screw

8 703 401 051

 

6 720 606 518

19

Image 19
Contents Table of Contents For Your SafetyUnpacking the Aquastar Heater FeaturesRequired Natural Gas Pressure at inlet tap Model 125BS Front View Side ViewTOP a Front B Back Sides Floor C Vent Diameter General Rules to Follow For Safe Operation Proper Location for Installing Your HeaterClearances Combustion AIR RequirementsAquastar 125 B S is design certified for mounting on a wall Mounting InstallationFigure a VentingFigure C 720 606 Masonry Chimneys6 Adaptor Used on High Altitude Vent Adaptor for High Altitude InstallationsColumn GAS Line Sizing For Natural GASFor LP GAS Maximum Capacity of Semi-RigidAbove 4.500 ft consult your local gas supplier Maximum Inlet GAS Flow Pressure SettingGAS Line Sizing Water ConnectionsTo Turn OFF GAS to Appliance For Your Safety Read Before Lighting the PilotOperating Instructions What to do if YOU Smell GASPilot burner with air screen/ pilot orifice Maintenance and ServicePilot Light will not Light Pilot Lights but Flame Goes OUT When Button is ReleasedAir in the Gas Line Water is not HOT Enough Burners do not Ignite When HOT Water is Turned onGas pressure too low Water is TOO HOTUnbalanced pressure in waterlines HOT Water Temperature Fluctuates / Unit DeactivatedDiagram of AquaStar 125 BS Interior Components Diagram and Parts List Interior Components Diagram Parts List 125BS Flow chart of Aquastar 125 BS General Limited Warranty720 606 720 606 BBT North AMERICA, Waitsfield, VT all rights reserved Bosch Group