Installation Manual

OPERATION
General information
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OPERATION
1. General information
The chapters "Operation" and "Special Information" are intended
for both the user and qualified technicians.
The chapter "Installation" is intended for qualified technicians.
Note
Read these instructions carefully before using the appli-
ance and keep them for future reference.
Pass on the instructions to a new user if required.
1.1 Safety instructions
1.1.1 Structure of safety instructions
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KEYWORD Type of risk
Here, possible consequences are listed that may result
from failure to observe the safety instructions.
f Steps to prevent the risk are listed.
1.1.2 Symbols, type of risk
Symbol Type of risk
Injury
Electrocution
Burns
1.2 Other symbols in this documentation
Note
General information is identified by the symbol shown
on the left.
f Read these texts carefully.
Symbol Meaning
Material losses
(appliance and collateral losses, environmental pollution)
Appliance disposal
2. Safety
2.1 Intended use
The appliance is intended for heating domestic hot water and can
supply one or more tapping points.
This appliance is intended for domestic use. It can be used safely
by untrained persons. The appliance can also be used in a non-do-
mestic environment, e.g. in a commercial setting, as long as it is
used in the same way.
Any other use beyond that described shall be deemed inappro-
priate. Using the appliance for heating fluids other than water or
water supplemented with chemicals, such as brine, is also deemed
inappropriate.
Observation of these instructions and of instructions for any ac-
cessories used is also part of the correct use of this appliance.
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WARNING
To reduce the risk of excessive pressures and tempera-
tures in this water heater, install temperature and pres-
sure protective equipment required by local codes and
no less than a combination temperature and pressure
relief valve certified by a nationally recognized testing
laboratory that maintains periodic inspection of pro-
duction of listed equipment or materials, as meeting
the requirements for Relief Valves and Automatic Gas
Shutoff Devices for Hot Water Supply Systems, ANSI
Z21.22.
The valve must be marked with a maximum set pres-
sure not to exceed the marked maximum working pres-
sure of the water heater, and orient it or provide tubing
so that any discharge from the valve exits only within 6
inches above, or at any distance below, the structural
floor, and does not contact any live electrical part. The
discharge opening must not be blocked or reduced in
size under any circumstances.
2.2 General safety instructions
WARNING Burns
During operation, the tap and T&P relief valve can reach
temperatures in excess of 140 °F (60 °C).
There is a risk of scalding at outlet temperatures in
excess of 109 °F (43 °C).
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Material losses
The user should insulate the water lines and the T&P
relief valve to protect them from freezing.
Note
The appliance is under pressure. During the heat-up pro-
cess, water will expand and increase in pressure. Without
an expansion vessel, the water will drip from the T&P
relief valve.
f Ensure that an expansion vessel is installed in line
with the water heater.
f If water continues to drip when heating is complet-
ed, please inform the installer.
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