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5773 597 - 04
Vitocrossal 200, CM2 400, 500 and 620 Installation
Important Regulatory and Installation Requirements
(continued)
WARNING
Failure to ensure that all flue gases have been safely
vented to the outdoors can cause property damage,
severe personal injury, or loss of life. Flue gases may
contain deadly carbon monoxide.
CAUTION
Under certain climatic conditions some building materials
may be affected by flue products expelled in close
proximity to unprotected surfaces. Sealing or shielding
of the exposed surfaces with a corrosion resistant
material (e.g. aluminum sheeting) may be required to
prevent staining or deterioration. The protective material
should be attached and sealed (if necessary) to the
building before attaching the vent termination. It is
strongly recommended to install the vent termination
on the leeward side of the building.
For Polypropylene venting systems only
Minimum and maximum wall thickness through which the
horizontal vent-air intake termination may be installed:
Minimum: 1 in. (25.4 mm)
Maximum: 30 in. (762 mm)
Vent-air intake system must be properly installed and sealed.
If PP venting system passes through an unheated space,
such as an attic, it must be insulated.
The insulation must have an R value sufficient to prevent
freezing of the condensate. Armaflex insulation with
b
in.
thickness and higher can be used.
Venting clearance to combustibles (Stainless Steel /
Polypropylene)
As per vent manufacturer’s requirements.
Working on the equipment
The installation, adjustment, service, and maintenance of
this boiler must be performed by a licensed professional
heating contractor who is qualified and experienced in the
installation, service, and maintenance of hot water boilers.
There are no user serviceable parts on the boiler, burners,
or control.
Note:
The completeness and functionality of field supplied
electrical controls and components must be verified
by the heating contractor. This includes low water
cut-offs, flow switches (if used), staging controls,
pumps, motorized valves, air vents, thermostats, etc
.
Ensure main power supply to equipment, the heating
system, and all external controls has been deactivated.
Close main gas supply valve. Take precautions in all
instances to avoid accidental activation of power during
service work.
Technical literature
Literature for the Vitocrossal 200 CM2 boiler:
- Technical Data Manual
- Installation Instructions
- Service Instructions
- Operating Instruction
- Instructions of other products utilized and installed
- Installation codes mentioned in this manual and as
locally applicable
Note:
Leave all literature at the installation site and advise
the system operator/ultimate owner where the
literature can be found. Contact Viessmann for
additional
copies.
This product comes with several safety instruction
labels attached. Do not remove!
Contact Viessmann immediately if replacement
labels are required.
General Information
