Acorn ET71 VALVE - Manual (Page 2)

Page 2 of 7
ET71 Installation & Operation Manual
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 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. It is the responsibility of the
installer and/or facility maintenance personnel
to make sure valve outlet temperature does
not exceed 95°F (35°C) after installation,
maintenance or repair.
Ÿ Installer MUST VERIFY operation of the Cold
Water By-Pass after completing installation
and temperature adjustments. Simulate a hot
water supply failure by closing the hot water
supply ball valve or by other means available.
Ÿ In circumstances where chemical reaction is
accelerated by flushing fluid temperature, a
medical advisor should be consulted for the
optimum temperature for each Application.
Ÿ Acorn's optional locking ball valves are the safe
and acceptable method for supply shut-off to this
product, unless installed in a lockable cabinet or
other means to prevent unauthorized supply shut
off. After initial set-up and after each ANSI and
ASSE required testing of this product be CERTAIN
to lock the Acorn or installer supplied ball valve
open. If installing supply shut-off valves by others,
you MUST follow ANSI Z358 and ASSE 1071
requirements that unauthorized supply shut off be
prevented.
Ÿ Verify that no single emergency fixture supplied by
this device has a minimum flow rate less than
1.5 gpm (5.7 lpm).
(Not provided by Acorn)
1. Wall anchors, screws nuts and washers as
required.
2. Teflon tape for sealing water connections.
3. Supply angle stops, ball valves optionally
available.
4. Supply connections.
5. Wrench and an allen wrench.
Flush supply lines of all foreign material such as pipe Ÿ
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 responsibility
Ÿ
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 60-95°F
(15-35°C). Valve assembly must be drained prior to
being subjected to freezing temperatures. Valve
includes integral check valves
.
WARNING: ! SUPPLIES REQUIRED:
Acorn Controls Division of Acorn Engineering Company ® , A member of Morris Group International ™
!
IMPORTANT
Manual #7802-113-000 Date: 04/01/14
20.3
(76.8)
24.8
(93.9)
28.7
(108.6)
35.1
(132.9)
43
(162.8)
49.7
(188)
14.3
(54.1)
FLOW RATE
GPM (LPM)
6.4
40.5
(153.3)
49.7
(188.1)
57.3
(217)
70.2
(265.7)
86
(325.5)
99.3
(375.9)
28.7
(108.6)
FLOW RATE
GPM (LPM)
12.8
70.7
(267.6)
86.6
(327.8)
100
(378.5)
122
(461.8)
150
(567.8)
173
(654.8)
50
(189.2)
FLOW RATE
GPM (LPM)
22.4
PRESSURE
DROP
10
(69)
5.66
(21.4)
15
(103)
6.9
(26.1)
20
(138)
8
(30.2)
30
(207)
9.8
(37.1)
45
(310)
12
(45.4)
60
(414)
13.9
(52.6)
5
(34)
4
(15.1)
FLOW RATE
GPM (LPM)
PSID (KPA)
6.5
(24.5)
CV
1.8
25
(94.6)
COLD WATER BYPASS ONLY
60
(227)
COLD WATER BYPASS ONLY
80
(302.8)
COLD WATER BYPASS ONLY
ET71-1
12 GPM
(45 LPM)
ET71-2
43 GPM
(163 LPM)
ET71-3
86 GPM
(325.5 LPM)
ET71-4
150 GPM
(568 LPM)
COLD WATER BYPASS ONLY