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5472 726 - 02
Vitotron 100 Electric Space Heating Hot Water Heater Installation/Service
Instructions for the Installer
Safety Instructions
8. This space heating hot water heater is equipped
with a 194°F manual reset safety high limit device.
The reset button is clearly located in the center of
this
device.
9. This space heating hot water heater will not operate
below a 7 psi water pressure level.
10. This space heating hot water heater is equipped
with a Wilo circulator pump. After thermostat
temperature set point has been reached the pump
will continue to circulate water for 3 additional
minutes as part of a post purge sequence to push
heated water away from heat exchanger.
11. This space heating hot water heater is equipped
with a differential pressure relief bypass valve.
It allows the system to keep minimal flow of
heating water through the space heating hot water
heater and reduce noise in the installation when
equipped with thermostatic zone valves.
12. Do not drain the water from the space heating hot
water heater after the heating season.
13. In summer do not shut off the power supply (120VAC
and 240VAC) and leave the controller in stand-by
(summer mode) between the heating seasons.
The space heating hot water heater is equipped with
an exercise timer control feature that allows the
circulating pump to operate 15 minutes each day and
will ensure longer operation the circulating pump and
will help to eliminate the buildup of debris. (See
section “Summer mode (stand-by mode)”on page 11).
14. Space heating hot water heater is pre-set by the
manufacturer to work with hydronic radiant floor,
radiant ceiling, hot water baseboard and water to air
heat applications. Temperature adjustments can be
made on control panel to meet these applications
requiring desired water temperatures between 85° -
140°F.
1. Read and strictly follow the installation and operating
instructions to ensure a longevity and reliable space
heating hot water heater operation.
2. This manual provides general installation guidelines.
Your installation must comply with ALL applicable
local
codes.
3.
Always have a qualified electrician perform
electrical wiring. Manufacturer will not be held
responsible for faulty installations which are performed
by unqualified electricians. An efficient electrical
installation which has been completed in accordance
with the binding norms of electric installation.
Electric installation should be equipped with electric
circuit breakers and other solutions which will ensure
disconnecting the space heating hot water heater
from the source of power.
4. All installation work must be performed when the
power and water supply is disconnected from the
main electrical panel.
5. This space heating hot water heater must be installed
vertically and on an even wall surface with access to
plumbing connections on bottom.
6. Any associated components (i.e. space heating hot
water heater, water tubing, valves, manifolds etc...)
must be flushed before space heating hot water
heater
installation.
7. This space heating hot water heater is equipped with
a safety relief valve. Do not install any barrier fitting
or valve on the outlet of the safety valve. Connect
and
extend
c
in. copper piping from relief valve and
terminate at least 6 in. from the floor or floor drain.
