Acorn ST70 VALVE - Manual (Page 2)

Manual #7802-112-001
Page 2 of 5
You are required to thoroughly read all installation
instructions and product safety information before
beginning the installation of this product.
FAILURE TO READ AND FOLLOW PROPER
INSTALLATION AND MAINTENANCE
INSTRUCTIONS MAY RESULT IN PRODUCT
FAILURE WHICH CAN CAUSE PROPERTY
DAMAGE, PERSONAL INJURY AND/OR
DEATH.
Acorn Controls is not responsible for damages
resulting from improper installation and/or
maintenance. Installation of this valve shall be
done in accordance with Uniform Plumbing
Code.
TO ENSURE ACCURATE AND RELIABLE
OPERATION OF THIS PRODUCT, IT IS
ESSENTIAL TO:
Ÿ Properly design the system to minimize
pressure and temperature variations.
Ÿ Implement an annual maintenance program
to ensure proper operation and temperature
setting of valve(s).
Ÿ This valve is factory preset. However, it can
be adjusted to deliver scalding temperatures. It
is the responsibility of the installer and or
facility maintenance personnel to make sure
valve outlet temperature does not exceed
110°F (43°C) after installation, maintenance or
repair.
WARNING: !
(Not provided by Acorn)
1. Wall anchors, screws nuts and washers as
required.
2. Teflon tape for sealing water connections.
3. Supply angle stops.
4. Supply hoses.
5. 5/8” wrench, adjustable wrench and 1/8” allen
wrench.
SUPPLIES REQUIRED:
Flush supply lines of all foreign material such as Ÿ
pipe dope, chips or solder prior to connecting to
mixing valve.
To ensure proper installation review the manual Ÿ
thoroughly to verify rough-ins before beginning
any work.
Installation and field adjustment are the Ÿ
responsibility of the installer.
Maximum water pressure is 125 psi (8.62 bars). Ÿ
Maximum inlet hot water temperature is 180° F
(82° C). Temperature adjustment range is 85-
115°F (29-46 C). Valve assembly must be
drained prior to being subjected to freezing
temperatures. Valve includes integral check
valves.
PRESSURE
DROP
10
(69)
1.9
(7.1)
15
(103)
2.3
(8.7)
20
(138)
2.7
(10)
30
(207)
3.3
(12.4)
45
(310)
4
(15)
60
(414)
4.6
(17.5)
5
(34)
1.3
(5)
FLOW RATE
GPM (LPM)
PSID (KPA)
Cv
0.6
ST70-38
PRESSURE
DROP
10
(69)
2.1
(8)
15
(103)
2.6
(9.8)
20
(138)
3
(11.4)
30
(207)
3.7
(14)
45
(310)
4.5
(17)
60
(414)
5.2
(19.7)
5
(34)
1.5
(5.7)
FLOW RATE
GPM (LPM)
PSID (KPA)
Cv
0.7
ST70-12
Acorn Controls Division of Acorn Engineering Company ® , A member of Morris Group International ™
!
IMPORTANT
Date: 04/01/14
ST70 Installation & Operation Manual