STIEBEL ELTRON SBB 400 plus, SBB 600 plus Operation & Installation

SBB 300 plus, SBB 400 plus, SBB 600 plus

Operation & Installation

Instruction Manual

1 Operation and Service

1.1 Start-Up

2 Maintenance and Cleaning

2.1 Pressure Relief Valve

2.2 Decalcification

2.3 Sacrificial Anode – Inspection /
Replacement

3 Failures – Cause – Correction

4 Technical Specifications

4.1 Technical Data

4.2 Dimensions

Installation Instructions

5 General

5.1 Description

5.2 Delivery Configuaration

5.3 Regulations and standards

5.4 Set-up and operation

6 Set-up and installation

6.1 Set-up

6.2 Connection

6.3 Heater Installation

6.4 Hot water Installation

6.5 Hot Water Temperature Probe

6.6 Solar Temperature Probe

6.7 Connection to the Solar Unit

6.8 Sacrificial Anode

Index

Important Tip

Stiebel Eltron hot water heaters should only be installed or serviced by licensed installers.
These are not do-it-yourself appliances.

Please hand this Operation and Installation Manual and hand over to the home or building owner when the
installation is complete.

Operating Instructions for the User and the Technician

1. Operation and Service

1.1 Start-up

The boiler (1) and solar storage tank (11), constitute a functional unit (refer Diagram 4 and 5).
Hot water is generated throughout the year by the solar collectors.

The entire heater and hot water system must be filled with water and have adaquate air ventilation. Please, refer to the
solar collector’s and the boiler’s installation instructions.

2. Maintenance and Cleaning
Routine care and maintenance extends the life expectancy and operating safety of the hot water storage unit.
The outer casing should be cleaned with a slightly damp cloth and commercially available neutral cleaning agent, this
should be done on a regular basis

2.1 Temperature / Pressure Relief Valve
The proper function of the T & P relief valve is required to prevent damage to the hot water storage unit. The T & P valve
needs to be open during cold-water addition. The water has to flow from the relief line at full stream.

The discharging water can be hot!

2.2 Decalcification

With hard tap water, a deposit of scale will form on the inside of the storage unit. Based on professional experience, it is
necessary to decalcify with commercially available solvents at timely intervals. Follow the manufacturers instructions for
solvent use. The hot water storage unit needs to be emptied. The inspection cover must be removed and sediments on
the tank bottom must be flushed.

2.3 Replacement of the Sacrificial Anode

Depending on the composition of the tap water, an inspection of the sacrificial anode (Pos. 1, Diagram 1) timely intervals
is recommended. With heavy wear, an original equipment replacement anode must be installed to protect the inner
container from corrosion. An inspection should be performed at least once a year.

3. Failures – Causes – Correction

Failures

Causes

Correction

Inadequate water pressure

Shut-off valve is not completely open. Cold
or hot water line is obstructed.

Open Shut-off valve. Clean or exchange
pipes.
Hot water flow inadequate

Boiler temperature is set too low.
Recommended 176 to 185º F.
Heat exchanger is calcified.

Set boiler to recommended temperature.
Clean heat exchanger.

Hot water storage tank not
being heated

Program selection at the heater control is
not properly selected.

Select and set program per instructions.

Outlet quantity inadequate

Aerator at the extraction point blocked.

Unscrew aerator and clean.
Hot water supply too fast
exhausted

Flow rate too high. Recommended 2.6-3.9
gal./min.

Restrict Spigot valve rate.

1

4. Technical Specifications

Components of the SBB…plus

1 Sacrificial anode indicator
2 Glass lined steel tank
3 Immersion sleeve for boiler temperature probez
4 Thermometer well
5 Spare port
6 Immersion sleeve for solar temperature probe
7 Inspection port
8 Expanded polystyrene-thermal insulation
9 Cold water inlet (SBB 300 & SBB 400)
10 Solar inlet
11 Solar heat exchanger
12 Solar return
13 Heat exchanger from boiler feed
14 Upper heat exchanger
15 Heater exchanger to boiler return
16 Warm water outlet / T & P relief valve location
17 Cold water inlet (SBB 600)
18 Circulation port

Diag. 1.

4.1 Technical Data

Type

SBB 300 plus

SBB 400 plus

SBB 600 plus

Contents

Storage capacity

Gal / ltr

80.6 / 305

108.6 / 411

162.9 / 617

Volume of heat exchanger, top

Gal / ltr

1.9 / 7.3

2.2 / 8.2

2.5 / 9.6

Volume of heat exchanger, bottom

Gal / ltr

2.7 / 10.1

2.9 / 11.3

3.5 / 13.2

Pressure

Working pressure

PSI / bar

150 / 10

150 / 10

150 / 10

Tested to pressure

PSI / bar

217 / (15)

217 / (15)

217 / (15)

Max. pressure of boiler loop

PSI / bar

150 / 10

150 / 10

150 /10

Temperature

Max. temperature solar loop

°F / °C

203 / 95

203 / 95

203 / 95

Max temperature boiler loop

°F / °C

203 / 95

203 / 95

203 / 95

Heat exchanger

Surface area heat exchanger top

sq. in. /m2

1705 / 1.1

2015 / 1.3

2325 / 1.5

Surface area heat exchanger bottom

sq. in. /m2

2325 / 1.5

2635 / 1.7

3100 / 2.0

Weights

Tank weight empty

lb. / kg

339 / 154

412 / 187

544 / 247

Tank weight full

lb. / kg

1,051 / 477

1,362 / 618

1,955 / 887

Other

Standby losses in 24 hours

KWh / BTU

1.9 / 6500

2.2 / 7500

2.9 / 10,000

Cold/hot water connection

for 1” copper pipe w/adapters, provided w/ unit