User Guide

Plumbing Design Assistance Manual l Chapter 5 – System design and layout l 53
½"
½"
¾"
¾"
¾"
1" CW SUPPLY
¾"
Efciencies of
Uponor Logic
For unit and in-suite
applications, Uponor Logic
reduces the number of ttings
by up to 70 percent when
compared to copper trunk
and branch and requires 40
percent less tubing than a
home run system. Uponor
offers a full line of EP multiport
tees for ultimate design
exibility.
Hot-water performance
Uponor Logic delivers hot
water nearly 46 percent faster
than a copper trunk and
branch system for the rst-use
xture and nearly 43 percent
faster than a home run system
for the second-use xture.
Copper trunk and branch
Number of fittings 39
Number of connections 93
Nominal pipe size Length (ft.)
½" 234
¾" 73
1" 5
Total 312
Table 5-4: Copper trunk and branch pipe and ttings usage
Copper
trunk and
branch
layout
Table 5-5: Hot water time-to-xture comparisons
Figure 5-5: Copper trunk and branch layout
0
10
20
30
40
Home run
Copper T&B
Uponor Logic
Home run
Copper T&B
Uponor Logic
Home run
Copper T&B
Uponor Logic
0
10
20
30
40
50
60
70
80
90
100
0
100
200
300
400
500
600
Fittings
Connections
Feet of pipe
System type
First-use HW
time to fixture
Second-use HW
time to fixture
Critical path
(tub only)
Critical path
(lav only)
Copper T&B 16.1 sec. 4.2 sec.
Home run 8.3 sec. 7.5 sec.
Uponor Logic 8.7 sec. 4.3 sec.