Bosch Aquastar 2400 ES, Aquastar 2700 ES Installation Instructions Manual

Outdoor Kit Installation Instructions

Aquastar Tankless Water Heater

For Aquastar models: 2400 ES, 2700 ES

Part no. AQOK

Warning: This kit must be installed by a qualified

installer in accordance with these instructions and all applicable codes and requirements of the authorities having jurisdiction.

6 720 608 835 US (2008.01) AL

6 720 608 835

Warning

1 Warning

This outdoor kit includes:

• Supports (2) with screws

• Sealing gasket

• Control panel shield

• Outdoor vent cap.

2 Selecting heater location

Before proceeding, read the water heater instructions manual. If the information in that manual is not followed exactly, a fire, explosion or poisoning by carbon monoxide may result causing property damage, personal injury or death.

B Choose an outside wall for the installation.

Installation on a wall protected by an overhang above is recommended.

B Size the water and gas connections according to the

instructions in the water heater installation manual. Use unions when connecting both water lines and gas supply line to the heater.

Minimum clearances

If the appliance is installed under an overhang, there must be a 36” clearance from the top of the appliance and the mounting area must be open in front and on the sides of the appliance.

Fig. 1

Danger: The top of the outdoor kit will get very hot during operation. Keep away from children. Install heater in a location where the top of the kit cannot be reached by small children.

Danger: Flue gas will be released through the outdoor kit. Flue gas is very hot and contains carbon monoxide. The outdoor kit cannot be installed indoors. To prevent risk of fire and carbon monoxide poisoning, maintain all clearances indicated in these instructions.

Danger: Do not place or store any combustible material within 5 feet of the appliance. Maintain specified clearance to combustibles on the wall where the appliance is installed and any adjacent walls or overhang. Observe all clearances required in this manual.

Danger: Surface temperature of the kit is less than 140°F, except highest top surface which may reach 300°F.

Warning: Do not mount directly onto vinyl siding, see Fig. 9.

Ref. Description

Min. distances

Directly below or adjacent to an opening; operable windows, doors and any fresh air openings

≥ 4 ft

D From any adjacent wall ≥ 4 ft

Below a gutter, sanitary pipework, eaves or overhang

≥ 3 ft

F Above ground ≥ 1 ft

From a gas meter or gas regulator

≥ 5 ft

Table 1 Clearances

6 720 608 835

Installing outdoor kit

3 Installing outdoor kit

Replace the control panel

B Loosen the two Philips head screws located on

bottom rear of cover (see Fig. 2).

Fig. 2 Loosen the two screws

B Remove the front cover panel and replace the

original control panel shield with shield provided in the kit, see Fig. 3.

Fig. 3 Replace the control panel

B After replacing the control panel re-position the front

cover.

B 1. Remove the cover plate (A) installed on the top of

the appliance, as shown in Fig. 4.

B 2. Fix the supports (B) to the appliance by fastening

the four provided screws, as shown in Fig. 4.

Fig. 4

Before mounting the outdoor kit in the appliance:

B 3. Attach the gasket provided with the kit as shown

in Fig. 5.

Fig. 5

B Position the outdoor vent cap on the top of the

appliance, as shown in Fig. 6.

Warning: The control panel shield must always remain closed, except when making adjustments, to prevent damage to heater from weather.

6720608547-14.1AL

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