Test The Water System - Vesta VRC-100 Installation Manual

Test the Water System

Make sure to fill the boiler with water before operating the
boiler.
Operating the boiler while filling it with water may damage
Warning
the boiler. Such damage voids the warranty and may result in
property damage, severe personal injury, or death.
Perform fill test after installing the boiler's water system to make
sure that the system has been installed properly. Follow the
instructions below to perform a fill test on the water system.
•
Fill the boiler with water after checking that the chemical
composition of water meets the requirements mentioned in this
manual.
• Close the drain valve of the boiler.
• Fill the boiler with water. The correct pressure will vary with
each applications. The normal pressure of the residential system
is 12psi. The operating pressure must never exceed the relief
valve pressure setting.
•
While filling with water for the first time and carrying out the
operation test, check for water leaks from the pipes. If there is a
water leak, stop the operation, repair the leak, and continue the
operation.
This system may have residual substances that could affect water
chemistry. After filling the system with water and completing the
water leak test, verify that water PH and chlorine concentrations are
within the acceptable range by performing sample testing.
Before operating the boiler for the first time, check if the boiler
is filled with water. To avoid boiler damage, remove all air from
Caution the system.
22
Installation Manual
Example of System Applications
Refer to the following examples to properly implement a system
for space heating, DHW supply, or both. These example are
provided to suggest basic guidelines when you install the boiler
system. However, the actual installation may vary depending on
the circumstances, local building codes, or state regulations. Check
the local building codes and state regulations thoroughly before
installation, and comply with them fully.
External Water Fill Connection
Read and follow the guidelines below for system piping of the
VESTA VRC boiler.
•
System application drawings are intended to explain the system
piping concept only
• When installing a mixing valve on the DHW piping, ensure that
the cold water pressure does not exceed the hot water pressure.
•
For the upstream side of all circulator, use straight pipes with a
minimum diameter of ½" (12mm)
•
Provide a system expansion tank following the guidelines on
page 16
• Installations must comply with all local codes, IN Massachusetts,
a vacuum relief valve must be installed in the cold water line per
248 CMR.
Air Removal
The boiler and system plumbing layout must be configured to
promote the removal of air from the water. Air vents and bleeders
must be strategically placed throughout the system to aid in
purging the air from the system during commissioning of the boiler.
The system must also employ the use of a strategically located air
removal device, such as an air scoop or micro-bubbler, designed to
remove the air from the water as it flows through the system.
Follow the installation instructions included with the air removal
device when placing it in the system ; air removal devices generally
work better when placed higher in the system. Always locate air
removal devices in areas of the system that have a guaranteed
positive pressure, e.g., in close proximity to the water fill and
expansion tank
Notice
VESTA VRC boiler has an air vent inside the product in order to purge air
in the system.