Please file in Service Binder
5285 873 - 02 12/2014
Installation Instructions
for use by heating contractor
VITOCROSSAL 300
Vitocrossal 300
CT3 Series
Gas-fired condensing boiler
Heating input: 638 to 3361 MBH
187 to 985 kW
Vitocrossal 300, CT3 boiler
with Vitotronic control
Working on the equipment
The installation, adjustment, service and
maintenance of this product must be performed
by a licensed professional heating contractor,
who is qualified and experienced in the installation,
service and maintenance of hot water heating
boilers. There are no user serviceable parts on the
boiler, burner, or control.
Ensure main power supply to equipment, the
heating system and all external controls has been
deactivated. Close main oil or gas supply valve.
Take precautions in all instances to avoid
accidental activation of power during service work.
Improper installation, service or maintenance can
cause product/property damage, severe personal
injury, and/or loss of life.
IMPORTANT
Please ensure that these instructions are read and
understood before commencing installation and
start-up. Failure to comply with these Installation
Instructions will render all warranties null and void.
Read and save these instructions
for future reference.
Product may not be exactly as shown
IMPORTANT
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