Installing The System Piping - Vesta VRC-100 Installation Manual

Installing the System Piping

Before connecting the pipes to the boiler, clean all systems to
remove sediment, flux, solder, scale, debris, or other impurities that
may be harmful to the boiler system. It is important to maintain the
inside of the pipes free of debris, copper dust, sand, and dirt while
installing the heating system.
When installing the VESTA DS boiler and keeping the existing pipes,
all pipes including the radiator should be cleaned.
If you fail to remove the above-mentioned contaminants
from the heating system, your warranty will be void, the heat
exchange will break down faster than normal, and property
Warning
damage may occur as a result.
Installing a Space Heating System
The primary heat exchanger and secondary heat exchanger of
VESTA DS VRC boiler are designed optimally to obtain high thermal
efficiency. The primary heat exchanger is configured in the finned
tube method and the secondary heat exchanger is configured
in the plate to plate method, maximizing the heating surface
area to achieve high thermal efficiency. In order to allow the heat
exchanger to operate effectively over time without trouble, it is
important to follow the rules and guidelines mentioned in this
section.
If you fail to follow the guidelines provided in this section, your
warranty will be void and property damage, fire, serious injury,
Caution or death may occur as a result.
Guidelines for a Space Heating System
Read the guidelines below for installing the boiler heating system
safely and properly.
Freeze protection for the space heating system
•
Freeze protection products may be used to prevent the
space heating system from becoming frozen. A specially
manufactured glycol is necessary for preventing a new or
existing piping system from becoming frozen. This glycol should
include inhibitors not harmful to metallic system components.
•
Before using freeze protection products, it is necessary to
check if the amount of glycol use in the space heating water
is appropriate and if the inhibitor level in such glycol is
appropriate. VESTA DS recommends against exceeding a 35%
concentration of glycol.
• If freeze protection products are used, the system should be
tested at least once a year.
•
When using the freeze protection products, allowance should
be made for expansion of the glycol solution.
•
Freeze damage is not covered by the warranty.
For a system requiring freeze protection, use only inhibited
propylene glycol, specially formulated for hydronic heating
systems; use of other types of antifreeze may be harmful to the
Warning
system and will void the warranty.
System Pressure
•
VESTA DS VRC boiler is intended solely for use in a pressurized
closed loop heating system operating with 7-30psi water
pressure at the boiler outlet. To obtain the minimum system
design pressure, comply with the piping diagram in this section.
• The space heating system of VESTA DS VRC boiler is not
approved to operate as an "open system", and thus cannot be
used for direct potable water heating or to process heating of
any kind.
Air Elimination
This boiler can be installed only in a pressurized closed-loop heating
system free of air and other impurities.
Install a proper-sized air-purging device at a proper position to
eliminate air from the entire heating system.
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Installing the System Piping