Note: This is a control system which must be cleaned and maintained regularly (see Maintenance Guide and Record card included with valve shipment).
6
Guardian Equipment
1140 N North Branch St
Chicago, IL 60642
312 447 8100
telephone
312 447 8101
facsimile
gesafety.com
rev. 1215 / © 2015 Guardian Equipment
Installation, Operation and Maintenance Guide
G3900LF Series Thermostatic Mixing Valves
Flow Capacities
System Pressure Drop (PSI)
0
12.5
25
37.5
50
Flow Rate (GPM)
50
60
70
80
90
100
110
120
130
CAUTION: ALL THERMOSTATIC MIXING VALVES HAVE
LIMITATIONS. THEY WILL NOT PROVIDE THE DESIRED
ACCURACY OUTSIDE OF THEIR FLOW CAPACITY
RANGE. CONSULT THE CAPACITY CHART AND DO NOT
OVERSIZE. MINIMUM FLOW MUST BE NO LESS THAN
SHOWN ABOVE.
IMPORTANT: THESE SYSTEMS ARE DESIGNED TO
PROVIDE MIXED WATER FROM 60 TO 90°F
(
15 TO
32°C
)
FOR EMERGENCY EQUIPMENT APPLICATIONS
ONLY IN ACCORDANCE WITH ASSE 1071.
G3900LF/G3950LF
MODEL
IN
OUT
MINIMUM
FLOW
(GPM)
INTERNAL
COLD WATER
BYPASS
MINIMUM
SYSTEM PRESSURE DROP
5
10
15
20
25
30
35
40
45
PSI
L/MIN
.3
.7
1.0
1.4
1.7
2.1
2.4
2.8
3.1
BAR
G3900LF
G3950LF 1-1/4"
1-1/2"
3
40
53
64
72
81
90
99
108
117
126
GPM
11
151
201
242
273
307
341
374
409
443
477
L/MIN
MAXIMUM FLOW CAPACITY
Limited Warranty
Guardian Equipment warrants the original purchaser that its products will be free from defects in materials and workmanship under normal usage conditions,
and when properly installed and maintained according to manufacturer's instructions for a period of two years from date of shipment. During the warranty
period, Guardian Equipment will (at its discretion) repair or replace any product or part thereof, which shall be returned, freight prepaid to Guardian's factory
and determined by the manufacturer to be defective in materials or workmanship. There are no warranties, expressed or implied, which extend beyond verbiage
contained herein. There are no implied warranties of merchantability or
fi
tness for a particular purpose. Guardian Equipment will not be held liable for labor,
incidental or consequential damages. Any alteration or improper installation or improper use of the product will void this limited warranty.
