Install Instructions

TruFL
OWJr_IS_6-06, Copyright © 2006 Uponor, Printed in the United States
V
alve Setting
To balance and preset the manifold
assembly
, pr
oc
eed as follows.
1. Using the chrome allen key
(6mm), turn main valve clockwise
until it stops.
2. Using the small brass key, turn
memory stop clockwise until
it st
ops.
3. Using the chrome allen key, turn
the main valve counter-clockwise
t
o set the loop flow or balancing
turns for that loop.
4. Using the small brass key, turn
memor
y stop counter-clockwise
until it stops.
Balancing Chart
How to Determine Balancing Turns
To balance the manifold correctly, determine the flow (gpm)
a
nd pressure drop (ft/hd) for each loop on the manifold.
To find the required turns, follow directions below.
1. On the manifold to be balanced, find the loop with
the highest pressure drop (ft/hd). This loop does
not need any balancing, and will be fully open
(4.25 turns from closed position).
2. To balance all other loops on the manifold, find the
pressure drop (ft/hd) for each loop and subtract from
the loop with the highest pressure drop (same as the
loop figured in step 1). The difference is the delta
ft/hd. Use this number on the balancing chart to
find the required number of balancing turns.
Example: If the highest pressure-drop loop has
7 ft/hd and the loop that needs to be balanced
has 5 ft/hd, subtract 5 from 7 for a difference of
2 delta ft/hd.
3. Locate the delta ft/hd number on the vertical scale
located on the left side of the balancing chart.
4. Locate the gallons per minute (gpm) on the
horizontal scale at the bottom of the balancing chart.
5. Locate wher
e the delta ft/hd and gpm intersect
on the chart.
6. The closest diagonal line to this intersection
represents the number of full valve turns from
closed to open to accurately balance the loop. If
the intersection falls between two diagonal lines,
estimate the distance between the lines and adjust
the turns accordingly.
Uponor
, Inc
5925
1
48th Street West
Apple Valley, MN 55124
Tel:
(
800
)
321-4739
F
ax
:
(
952
)
89
1
-1409
Web: www.uponor-usa.com
E-mail: [e-mail]
Uponor Ltd.
655 Park Street
Regina, SK S4N 5N1
Tel: [phone]
F
ax
:
[phone]
Web: www.uponor.ca
E-mail: [e-mail]