Bosch 7736502494, 7736502492, 7736502491, 7736502493 User Manual

Gas continuous flow water heaters

6720808877-00.1V

OptiFlow Professional

GWH12 1 CTD E23/31 F3 OL

Operating Manual

Read installation manual prior to installation of this appliance! Read user manual before putting this unit in operation!

Observe the warnings in the manuals! The installation location must meet the requirements for sufficient ventilation!

Installation by an authorised person only!

6 720 813 938 (2016/06) AU

2 | Index

Index

1 Key to symbols and safety instructions . . . . . . . . . . 3

1.1 Key to symbols . . . . . . . . . . . . . . . . . . . . . . . 3

1.2 General safety instructions . . . . . . . . . . . . . . 3

2 Product details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1 Declaration of Conformity . . . . . . . . . . . . . . 4

2.2 Type overview . . . . . . . . . . . . . . . . . . . . . . . . 4

2.3 Included items . . . . . . . . . . . . . . . . . . . . . . . . 5

2.4 Rating plate . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.5 Description of appliance . . . . . . . . . . . . . . . . 5

2.6 Accessory . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.7 Appliance layout . . . . . . . . . . . . . . . . . . . . . . 6

3 Operation instructions . . . . . . . . . . . . . . . . . . . . . . . . 7

3.1 Digital display - description . . . . . . . . . . . . . 7

3.2 Before commissioning the appliance . . . . . . 7

3.3 Switching the appliance on/off . . . . . . . . . . . 7

3.4 Temperature control . . . . . . . . . . . . . . . . . . . 7

3.5 Programming button . . . . . . . . . . . . . . . . . . . 8

3.6 Draining the appliance . . . . . . . . . . . . . . . . . 8

3.7 Codes of errors in the display . . . . . . . . . . . . 8

3.8 Cleaning the front of the appliance . . . . . . . 8

4 Maintenance (only by authorised technicians) . . . . 9

5 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

6 Environment / disposal . . . . . . . . . . . . . . . . . . . . . . . 12

7 Water quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

8 Warranty details . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

6 720 813 938 (2016/06) OptiFlow Professional

Key to symbols and safety instructions | 3

1 Key to symbols and safety instructions

1.1 Key to symbols

Warnings

Warnings in this document are identified by a warning triangle printed against a grey background. Keywords at the start of a warning indicate the type and seriousness of the ensuing risk if measures to prevent the risk are not taken.

The following keywords are defined and can be used in this document:

• NOTICE indicates a situation that could result in damage to property or equipment.

• CAUTION indicates a situation that could result in minor to medium injury.

• WARNING indicates a situation that could result in severe injury or death.

• DANGER indicates a situation that will result in severe injury or death.

Important information

This symbol indicates important information where there is no risk to people or property.

Additional symbols

Symbol Explanation

▶ Step in an action sequence  Cross-reference to another part of the document

•List entry – List entry (second level)

Table 1

1.2 General safety instructions

If you smell gas:

▶ Close the gas supply valve to the appliance. ▶ Isolate gas supply from gas meter or LPG bottle. ▶ Do not operate any electrical appliances or switches (on/

off).

▶ Extinguish other sources of ignition. ▶ Go to a different location and call the gas supplier or an

authorised technician in order to check the gas supply.

If you notice dark combustion gases or sooting:

▶ Isolate the Gas supply to the heater. ▶ Notify an authorised technician.

Installation, Assembly and Modifications

Installation, assembly and modifications to the heater must only be performed by an authorised installer.

Maintenance

▶ The water heater is required to have a service and safety

inspection every two years.

▶ The Installer is responsible for the safety and

environmental compatibility of the installation.

▶ The Owner/User is responsible for keeping the area around

the water heater free from debris.

▶ Safe access to inspect and service the water heater is the

responsibility of the property owner.

▶ Only original spare parts must be used, supplied by an

authorised supplier of genuine Bosch parts.

Explosive and highly flammable material

▶ Do not store or use flammable material (paper, spray cans,

solvents, paints, etc) near the heater.

Combustion air and surrounding air

▶ To avoid corrosion, the combustion air and surrounding air

must be free from harmful substances.

▶ Do not spray aerosols or use chemicals around the heater

unless heater is isolated. (All valves closed).

Risk of damage due to operator error

Operator error can result in injury and damage to property.

▶ Ensure that children never play with or operate this

appliance unsupervised.

▶ Ensure that only personnel who can operate this appliance

correctly have access to it.

▶ Refer to the operating and user instructions before

adjusting the water heater.

To be installed and serviced only by an authorised person

The “authorised installing person” is responsible for:

• Correct installation and commissioning of this appliance.

• Ensuring the appliance performs to the specifications stated on the rating label.

• Demonstrating the operation of the appliance to the customer before leaving.

• Handing these instructions to customer.

THIS APPLIANCE IS NOT SUITABLE FOR POOL OR SPA POOL APPLICATIONS. NOT SUITABLE FOR COMMERCIAL BOOSTING OF A WARM WATER RECIRCULATION SYSTEM"

6 720 813 938 (2016/06)OptiFlow Professional

4 | Product details

Regulations

All local by-laws and regulations pertaining to installation and use of gas appliances must be observed.

This appliance must be installed in accordance with the manufacturers installation instructions, AS/NZS5601, AS/ NZS3500, and all Local Building & Gas fitting regulations.

This appliance must not be installed indoors or in an enclosed space. This appliance is approved for outdoor installation only. Do not install this appliance with any modification or alteration.

Failure to install this appliance in accordance with these installation instructions will void the warranty and may create an unsafe situation.

Safety of electrical appliances for domestic use and similar purposes

The following requirements apply in accordance with AS/ NZS60335 in order to prevent hazards from occurring when using electrical appliances:

“This appliance can be used by children of 8 years and older, as well as by people with reduced physical, sensory or mental capabilities or lacking in experience and knowledge, if they are supervised and have been given instruction in the safe use of the appliance and understand the resulting dangers. Children must not play with the appliance. Cleaning and user maintenance must not be performed by children without supervision.”

“If the power cable is damaged, it must be replaced by the manufacturer, its customer service department or a similarly qualified person, so that risks are avoided.”

2 Product details

2.1 Declaration of Conformity

The appliance has been AS 4552 tested.

Model GWH12 1 CTD E23/31 F3 OL...

Table 2

2.2 Type overview

GWH 12 1CTDE23 F3 OL GWH 12 1CTDE31 F3 OL

Table 3

[GWH]Gas continuous flow water heater [12] Capacity (l/min) [1] Generation [CT] Thermostatic [D] Digital user interface [E] Electric ignition [23] Appliance set for natural gas [31] Appliance set for Universal LP gas [F3] Open flue with fan [O] Outdoor installation [L] Locked water temperature adjustment

6 720 813 938 (2016/06) OptiFlow Professional

2.3 Included items

• Gas continuous flow water heater

• Fixing brackets

• Appliance documentation

2.4 Rating plate

The rating plate is located on the outside of the appliance, on the bottom.

The particular room has the indications on the performance of the appliance, approval data and the serial numbe r.

2.5 Description of appliance

• Wall-mounted appliance

• Remote control with multifunctional display panel (optional)

• Appliance for operating with natural gas or Universal LPG

• Electronic ignition

• Water flow sensor

•Water valve

• Temperature sensors for monitoring the temperatur e of the incoming and outgoing water of the appliance.

•Safety devices: –Flame sensor rod –Thermal fuse – Outgoing water temperature sensor – Electronic control box – Air temperature sensor – Frost protection device

• Electrical connection: 230 V, 50 Hz

Product details | 5

2.6 Accessory

• Mains remote control (optional)

• Bathroom remote control (optional)