Bosch Evolution 500 Series Referenzhandbuch

Models: 715ES, C800ES, 2400ES, 2700ES, Evolution 500, Integra 500

Replacing the control unit

Service Bulletin G3-24

Introduction

Tools needed:

Phillips head screw driver

Small flat head screw driver

Needle-nosed pliers

Note: Avoid touching printed circuit board (PCB) as static discharge

may damage circuitry.

Preparation

Push power button to “OFF” and unplug power cord.

Loosen two Phillips head screws on bottom rear of front cover.

Pull cover bottom outwards then lift cover upwards to remove.

Removing control unit

Remove three Phillips screws on front of control unit. (Fig. 2,

pos. 1)

Turn control unit to expose the rear. (Fig. 2, pos. 2).

Locate and remove 6 Phillips head screws on back of control

unit (Fig. 2, pos. 3).

control unit front

Figure 2

Remove rear cover from control unit to expose circuit board

electrical connections. Slide wire restraints out of control unit.

(Fig. 3, pos. 1).

Remove two large electrical strip connectors by pulling them

away from board. (Fig. 3, pos. 2).

Remove medium sized electrical strip connector by pulling it

outwards. (Fig. 3, pos. 3).

Remove small electrical strip connector by pulling it outwards.

(Fig. 3, pos. 4).

Remove two large ignition wires by pulling them outwards.

(Fig. 3, pos. 5).

Remove yellow/green striped ground wire spade connection by

depressing tab on connector and pulling it gently off the board.

(Fig. 3, pos. 6).

Loosen two small flat head screws on terminal block for power

cord. Pull black and white wires free from terminal block and

control unit. (Fig. 3, pos. 7).

Loosen Phillips head screw and remove green ground wire con-

nection for power cord. (Fig. 3, pos. 8).

Figure 3

1 1

Remove control unit from the water heater.

Appliance evaluation for PCB jumper location

Please evaluate the following prior to installation of the replacement

PCB:

|G3-24 | 715ES, C800ES, 2400ES, 2700ES, Evolution 500, Integra 500 Service bulletin

Data subject to change without notice | Printed in the USA | BTC 710002318 D | 06.2012 Bosch Thermotechnology Corp.

Bosch Thermotechnology Corp.

50 Wentworth Avenue

Londonderry, NH 03053

Tel: 1-800-642-3111

Fax: 1-603-965-7581

www.bosch-climate.us

Locate rating plate sticker on right side of heater cover.

Determine model number (Fig.1, pos.A) and gas type (Fig.1,

pos.B).

Figure 1

PCB jumper installation

In order for the appliance to work correctly, the proper jumpers

must be installed on the PCB board. (Fig.4)

Backside of control unit

ackside o

control uni

Figure 4

Based on your model and gas type, jumpers should be installed

on the PCB in the following arrangement:

Model 2400 ES:

Natural

Gas

atura

Gas

Figure 5

Liquid

Propane

Models: C 1050 ES, 940 ES/ESO, 2700 ES, C 800 ES, 715 ES,

Evolution 500 (WTD 27), or Integra 500 (WTD 30)

Figure 7

Natural

Gas

Liquid

Propane

Replacing control unit

Once the appropriate jumpers have been determined, remove

rear cover of replacement control unit.

Install jumpers in the proper location on PCB.

Connect green ground wire from power cord to replacement

control board with Phillips head screw. (Fig. 3, pos. 8).

Reconnect black and white power cord wires to terminal

block on replacement control unit; Black -L (Load), White - N

(Neutral). Secure to terminal block by tightening flat head

screws. (Fig. 3, pos. 7).5. Reconnect yellow/green striped

ground wire to spade connection on replacement control

board. (Fig. 3, pos. 6).

Reattach large ignition wires to replacement control board (no

polarity). (Fig. 3, pos. 5).

Reconnect small electrical strip connector to replacement con-

trol board. (Fig. 3, pos. 4).

Reconnect medium sized electrical strip connector to replace-

ment control board. (Fig. 3, pos. 3).

Reconnect two large electrical strip connectors to replacement

control board. (Fig. 3, pos. 2).

Reseat rubber wire restraints in control unit. (Fig. 3, pos. 1).

Replace rear cover on unit using 6 Phillips screw (Fig. 2, pos.3).

Place control unit back into water heater and secure with 3

Phillips head screws. (Fig. 2, pos. 1).

Plug water heater power cord back into electrical outlet and

push On/Off button on water heater to “ON”.

Dieses Handbuch passt für folgende Modelle

Andere Bosch Boiler Handbücher

Bosch

Bosch 715ES Referenzhandbuch

Bosch

Bosch AQUASTAR 125B LPL operati Bedienungsanleitung

Bosch

Bosch Exxcel 1400 Benutzerhandbuch

Bosch

Bosch GWH 1600 P NG Bedienungsanleitung

Bosch

Bosch WR8 series Technisches Dokument

Bosch

Bosch Compress 3000 Bedienungsanleitung

Bosch

Bosch 940ESO Bedienungsanleitung

Bosch

Bosch WR 11 B Technisches Dokument

Bosch

Bosch US3 Technisches Dokument

Bosch

Bosch 425HN Referenzhandbuch

Bosch

Bosch HydroPower TF250-8G(10H) Technisches Dokument

Bosch

Bosch Comfort Plus TR 4000 Bedienungsanleitung

Bosch

Bosch 715ES Referenzhandbuch

Bosch

Bosch WR430-7K Montageanleitung

Bosch

Bosch BC3200RA Bedienungsanleitung

Bosch

Bosch DHW Tank QWST120 O Bedienungsanleitung

Bosch

Bosch Highflow 17e Bedienungsanleitung

Bosch

Bosch Acu Tank AT 200 Technisches Datenblatt

Bosch

Bosch TR5500T Series Bedienungsanleitung

Bosch

Bosch TRONIC 3000C Pro US7 Technisches Dokument

Bosch

Bosch WR11B series Bedienungsanleitung

Bosch

Bosch GWH C 800 ES Bedienungsanleitung

Bosch

Bosch TR7000R 18/21 DESOAB Bedienungsanleitung

Bosch

Bosch TR4000 Bedienungsanleitung

Beliebte Boiler Handbücher anderer Marken

Kenmore

Kenmore 153.582400 Bedienungsanleitung

Applimo

Applimo Edel AIR Bedienungsanleitung

STIEBEL ELTRON

STIEBEL ELTRON Eltronom SHU 5 S Bedienungsanleitung

clage

clage E-Mini Series Bedienungsanleitung

Toyotomi

Toyotomi Oil Miser OM-180 Bedienungsanleitung

Bradford White

Bradford White EF Series Bedienungsanleitung

Eccotemp

Eccotemp 40-H Bedienungsanleitung

Dimplex

Dimplex ECSd125-580 Leitfaden

Dux

Dux 32FCR6N Bedienungsanleitung

Toyotomi

Toyotomi Oil Miser OM-148 (Type D) Fehlerbehebungshandbuch

Noritz

Noritz N-132M Gebrauchsanweisung

TESY

TESY GCV7/4S 10047 Technisches Datenblatt

A.O. Smith

A.O. Smith Gphe 50 Bedienungsanleitung

Koryo

Koryo KWHZF15Y Bedienungsanleitung

Pentair

Pentair PSC-14-4-02 Bedienungsanleitung

GE 40M06AAG Montageanleitung

Thermor

Thermor AEROMAX SPLIT 2 Bedienungsanleitung

American Hometec

American Hometec AHQ-B03X Bedienungsanleitung