PEX Installation Manual

3
IM-PF 724596 0416
Contents
1 Introduction
1.1 Viega PEX solutions ................... 5
1.2 Viega PEX system concepts ............ 5
2 Codes, Standards and Certifications
2.1 Codes ............................. 6
2.2 Standards .......................... 6
2.3 Certications ........................ 6
2.4 Specifying Viega PEX Systems .......... 7
3 Viega PEX Installation Methods
3.1 Home run systems .................... 8
3.2 Combination systems ................. 8
3.3 Branch and tee ...................... 9
4 Viega Manifolds
4.1 Viega manifold markings .............. 10
5 Viega PEX Press Fittings
5.1 Viega PEX Press bronze .............. 11
5.2 Viega PEX Press polymer ............. 11
5.2.1 Viega Smart Connect feature ...... 11
5.3 Viega PEX Press tting markings ........ 11
5.4 PEX Press tools ..................... 12
5.4.1 PEX Press hand tools ............ 12
5.4.2 PEX Press power tools .......... 12
5.5 Making a Viega PEX Press connection with
hand tool .......................... 13
5.5.1 Trimming and inserting the tubing .. 13
5.5.2 Pressing with a hand tool ......... 13
5.5.3 Pressing with a power tool ........ 13
6 Viega PEX Crimp Fittings
6.1 Viega PEX Crimp Eco Brass ttings ..... 14
6.2 Viega PEX Crimp PolyAlloy ttings ...... 14
6.3 Viega PEX Crimp tting markings ....... 14
6.4 The Viega PEX Crimp hand tools ........ 15
6.5 Making a Viega PEX Crimp connection ... 16
7 ViegaPEX Ultra Tubing
7.1 ViegaPEX Ultra properties and performance .. 17
7.2 Tubing markings .................... 17
8 Viega FostaPEX Tubing
8.1 FostaPEX properties and performance ... 18
8.2 Tubing markings .................... 18
9 Viega PEX System Design and Sizing
9.1 ManaBloc .......................... 19
9.1.1 Supply and distribution line sizing .. 19
9.1.2 Plumbing code compliance
(home run / parallel systems) ...... 19
9.2 Combination systems ................ 20
9.3 Branch-and-tee systems .............. 20
10 System Sizing and Calculations ...... 21
10.1 General .......................... 21
10.2 Viega PEX ttings .................. 21
10.2.1 Viega PEX Press friction loss —
equivalent feet of SDR9 PEX tubing .. 21
10.2.2 Viega PEX Crimp friction loss —
equivalent feet of SDR9 PEX tubing .. 21
10.3 ViegaPEX Ultra tubing ............... 22
10.3.1 Flow Velocity Table ............ 22
10.3.2 Pressure Loss Table ........... 23
10.3.3 Velocity limits ................ 23
11 Water Service Installation
11.1 Below grade and service line .......... 24
11.2 Foundation penetration .............. 25
11.3 Direct burial of Viega PEX ttings ...... 25
11.4 Concrete ......................... 25
11.5 Installing under the slab .............. 25
11.6 Protecting ViegaPEX Ultra tubing ...... 26
12 Installing the ManaBloc
12.1 Overview and carton contents ......... 27
12.2 Location .......................... 27
12.3 Draining the ManaBloc unit ........... 29
12.4 Draining the ManaBloc system ........ 30
12.5 Multiple ManaBloc installations ........ 30
13 Mounting the ManaBloc
13.1 Mounting the ManaBloc between studs .. 31
13.2 Mounting the ManaBloc between studs
without use of mounting straps ........ 33
13.3 Mounting the ManaBloc - surface mount ...34
13.4 Mounting the MiniBloc .............. 35
13.5 Mounting Viega PEX Press and PEX Crimp
Polymer manifolds .................. 36
14 Installing Manifold Distribution Lines
14.1 Installing manifold distribution lines. . . . . 37
14.2 Valve operation .................... 38
14.3 Connecting distribution lines to the
ManaBloc ........................ 38
14.3.1 Port connections ............. 39
14.4 Connecting distribution lines to xtures ....42
14.5 Water supply connections ............ 42
15 Installing the ViegaPEX Ultra Tubing
System
15.1 Handling ViegaPEX Ultratubing ....... 43
15.2 Uncoiling ViegaPEX Ultratubing ....... 43
15.3 Bending ViegaPEX Ultra tubing ........ 43
15.4 Removing Viega PEX connections ..... 44
15.5 Repairs ........................... 44
15.6 Freezing .......................... 44
15.7 Water heaters ...................... 44
15.8 Heaters, ues, vents and recessed lights ..45