Product Overview

7 of 11
Viega... The global leader in plumbing, heating and pipe joining systems
301 N. Main, 9th Floor • Wichita, KS 67202 • Ph: 800-976-9819 • Fax: [phone] • www.viega.com
©2011, ProPress
®
, FostaPEX
®
, Seapress
®
, MegaPress
®
, MegaPressG
®
and Viega
®
are registered trademarks of Viega GmbH & Co. PureFlow
®
, Smart Connect
®
, Climate Panel
®
, Climate Mat
®
, Climate Trak
®
,
MANABLOC
®
, Radiant Wizard
®
, S-no-Ice
®
, Snap Panel
®
, XL
®
and XL-C
®
are registered trademarks of Viega LLC. MiniBloc
™
, ProRadiant
™
, PolyAlloy
™
, SmartLoop
™
and Zero Lead
™
are trademarks of Viega LLC;
GeoFusion
™
, ProPressG
™
and ViegaPEX
™
are trademarks of Viega GmbH & Co. KG.
Product
Instructions
PI-PR-561051 0312 (Enhanced Mixing Station)
Pressure Testing
Before the finish floor is installed and during a concrete pour the radiant system must be pressure tested. Air or water
may be used as the medium. The following procedure is recommended by Viega. Check with the local authority having
jurisdiction for additional test requirements.
1. Double check all connections to manifold to ensure tightness
2. Connect manifold pressurization kit to the purge valve (draw-off) on the return manifold. The purge valve on Stainless
Manifolds are found in a similar location, but are built into the manifold header
3. Close isolation ball valves on the Mixing Station
4. Open Diverting Valve (turn grey cap counter clockwise to open)
5. Open all circuits on manifold
6. Pressurize the system to 100 psi for at least 1 hour
Air as the medium: use a bicycle pump or compressor. Viega's Pressurization Kit comes equipped with a schrader valve for
pressurizing with air.
Water as the medium: open the isolation valves to fill and pressurize. Or, backfill using a garden hose with a washing
machine hose attached to it so there is a hose x hose connection. Attach one end of the hose to the purge valve on the
station and the other end of the hose to a hose bib, wall hydrant, or sillcock. This method is limited to city or well water
pressure.
The system should hold the 100 psi for a minimum of 1 hour.*
NOTE: Maintain pressure during the installation of the finish floor to simplify leak detection. Note what the pressure is and
check occasionally. If pressure drops, some investigating may be necessary. If the tubing is damaged, repair necessary
section with a compression coupling.
TIP: If air test leaks more than once, test with water
*Minor drop in pressure can be a result of change in ambient temperature
Isolation Ball Valves
Diverting Valve
Pressurization Kit
Purge Valve
(Draw Off)
Purge Valve
(Draw Off)
Manual Air Bleeder
Manual Air Bleeder