User Guide
Table Of Contents
- Introduction
- Codes, Standards, and Certifications
- PureFlow Press Fittings
- PureFlow Crimp Fittings
- PureFlow Tools
- Product Instructions
- Tubing Overview
- Design Considerations
- ManaBloc Systems
- Installing PureFlow Systems
- Storage Recommendations
- Handling Viega PureFlow PEX Tubing
- Removing PureFlow Connections
- Repairs
- Freezing
- Water Heaters
- Heaters, Flues, Vents, and Recessed Lights
- Fastening the PureFlow System
- Supporting PureFlow PEX Tubing
- Installation Considerations
- Noise and Water Hammer
- Shower Valves
- Electrical Grounding
- Expanding Foams
- Fire Stop Compounds
- Tubing Expansion
- Calculating Expansion Loops and Offsets
- Domestic Hot Water Circulating Systems
- Installing Viega PureFlow Fittings
- PureFlow PEX Tubing Installed in Slab
- Installing PEX Under a Slab
- Installing PEX Below Grade as Service Line
- Pressure Testing PureFlow Systems
- System Disinfection
- Limited Warranty
ManaBloc Systems
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PG-PF 724998 0320 PureFlow System
4. The mounting base must be rmly
attached to a structure solid enough
to support, at a minimum, the weight
of the ManaBloc lled with water. The
base should be square and level.
5. Center the ManaBloc on the base
both vertically and horizontally. Attach
the ManaBloc to the mounting base
with four ½" or longer drywall screws
or wood screws through the holes in
the plastic brackets on the ManaBloc.
DO NOT OVERTIGHTEN.
4"- 6"
90°
6. As the distribution lines are connected
to the ManaBloc (refer to the PureFlow
Water System Installation Manual),
ensure that the tubing exits the unit
at a 90° angle to the center line of the
ManaBloc so as not to induce bending
stress on the ManaBloc.
7. When attaching the distribution line
tubing to the 2x4 supports, be sure
to use appropriately sized Viega
tubing clamps. (For example, use part
number 52000 for ⅜" tubing and part
number 52020 for ½" tubing.)
Use one clamp per tube to ensure
that the tubing is held securely.
Position clamps NO FARTHER than
6" from the end of the port. DO NOT
pull tubing tight.
Mounting the MiniBloc
1. For proper bracket spacing, measure
distance between the center ribs of the
rst and last MiniBloc modules. Mark this
distance on the selected mounted surface.
2. Align the outside edge of each
bracket within each end mark.
Mounting brackets shall be mounted
level and parallel to each other before
axing the MiniBloc manifold.
Note: Use both mounting brackets
provided with each MiniBloc manifold.
Ensure the mounting surface is suitable
to support the weight of the manifold and
attached tubing when lled with water.
3. Use two wood screws per bracket, 1"
or longer, to prevent misalignment.