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
27
PG-PF 724998 0320 PureFlow System
ManaBloc Supply Piping Options
Flow-thru piping
(standard)
Non-flow-thru piping
Top supply
(Bull head tee)
Non-flow-thru
piping
Top supply
(Standard)
Hot water from W/H
Hot water
from W/H
Hot water from W/H
Cold water to W/H
Cold water to W/H
Cold water supply to
W/H
Cold water supply
Bull head tee
End cap
End cap
Water service
(cold)
Water service (cold)
Water service (cold)
If a main inlet/outlet will not be used, it
must be capped. (Use part number 53601.)
The main service line to the ManaBloc
may include a main shuto valve, as
required by local code. Although a
shuto valve for the main service line at
the ManaBloc itself is not required, it can
be a benecial option for a homeowner
and is recommended.
Optional
ManaBloc
shutoff
Local code may also require the installation
of a check valve, Pressure Reducing Valve
(PRV), back ow preventer, etc. To prevent
debris and other particles from entering the
system, a strainer may be installed in the
service line.
ManaBloc Supply Piping Options