PEX Installation Manual

IM-PF 724596 0416
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14.4 Connecting distribution lines to fixtures
There are a variety of male and female adapters,
sweat adapters, turn out supports and stub out
adapters to assist in terminating at the xture. Refer
to Section 17.1 though 17.4 of this guide or the Viega
product catalog.
14.5 Water supply connections
The main water supply shall be turned off before
making water supply connections.
The ManaBloc water supply connection uses a special
1" swivel ManaBloc transition tting that seals with a
sealing element.
ManaBloc
Supply Adapter
(PEX Press shown)
This connection is used on the cold water supply and
the hot water supply/return lines. This connection to
the ManaBloc does not require any form of thread
sealant and none shall be used.
DO NOT USE ANY FORM OF THREAD
SEALANT TO MAKE THIS CONNECTION.
NOTE: Water service connections to adapt to most
types of plumbing supply materials are available.
Consult the Viega Product Catalog for a complete
listing of available connections.
1. Connect water service adapters to water supply
piping before attaching the swivel tting to the
ManaBloc (instructions included with adapters).
Excessive force from threaded ttings or solvents
from solvent welding (PVC or CPVC) will cause
damage to the ManaBloc. Drill all holes in wood
members for water supply/return tubing BEFORE
mounting the ManaBloc.
2. When using male or female pipe thread transition
ttings, to connect to supply tubing, use only
Teon
®
tape to seal pipe threads. DO NOT use pipe
dopes, thread sealers, Teon
®
pastes, etc.
3. If copper sweat ttings are used anywhere in the
ManaBloc water supply line or water heater supply/
return lines, these ttings must be soldered, cooled
and ushed of any ux residue before these lines
are connected to the ManaBloc.
Soldering creates a tremendous amount of heat,
which could melt the ManaBloc, and solder ux
contains strong acids and may also contain
petroleum products.
These compounds can attack the plastic materials
from which the ManaBloc is made and cause
crazing, cracking and failure of the ManaBloc,
resulting in leaks and water damage.
4. Ensure that the hot/cold supply lines are connected
to the correct supply inlet/outlet on the ManaBloc.
Red valves designate hot ports; blue valves
designate cold ports.
5. Supply lines shall enter and/or exit the ManaBloc
in a straight line. If bending of the supply lines
is required, the tubing must be anchored to a
framing member to isolate the bend stress from
the ManaBloc or use a directional tting.
6. After the supply tubing has been connected to the
transition tting, remove the plastic protective cap
from the ManaBloc inlet/outlet part and thread the
swivel nut onto the threaded male adapter hand-
tight only. DO NOT CROSS-THREAD.
DO NOT ELECTRICALLY GROUND
TO THIS SYSTEM.
Swivel ttings must be ALIGNED CORRECTLY
before being attached to the ManaBloc. The piping
material must not be allowed to put stress on the
ManaBloc, as leaking and damage may result.
HAND-TIGHTEN ONLY
HAND-TIGHTEN ONLY
MANABLOC
®
Damage
may result if
overtightened