McDonnell & Miller FS4-3, FS4-3J-E, FS4-3D-E, FS4-3S-E Instruction Manual
FLOW
• Before using product, read and understand instructions.
• Save these instructions for future reference.
• All work must be performed by qualified personnel trained in the proper application,
installation, and maintenance of plumbing, steam and electrical equipment and/or systems in
accordance with all applicable codes and ordinances.
• To prevent electrical shock, turn off the electrical power before making electrical
connections.
• To prevent an electrical fire or equipment damage, electrical wiring insulation must have a
rating of 167˚F (75˚C) if the liquid’s temperature exceeds 180˚F (82˚C).
• To prevent electrocution, when the electrical power is connected to the flow switch, do not
touch the terminals.
• Make sure flow switch electrical cover is secured before turning on electric power.
Failure to follow this warning could cause property damage, personal injury or death.
W
A
R
N
I
N
G
C
A
U
T
I
O
N
!
WARNING
Series FS4-3
General Purpose
Liquid Flow Switch
Installation & Maintenance
Instructions MM-601(C)
OPERATION
This control is an independently mounted water flow
sensing device that makes or breaks an electrical
circuit when flow stops or starts.
Series FS4-3
(specified models only)
Now
with
Stainless Steel
Pad dles
®
2
Maximum Liquid Pressure: 160 psi (11.3 kg/cm2)
Liquid Temperature Range (T
L): 32 - 300˚F (0 - 149˚C)
Ambient Temperature Range (T
S): 32 - 120˚F (0 - 49˚C)
Electrical Enclosure Rating: Nema Type 1 (IP 21)
Maximum V elocity: 10ft/sec (3M/sec)
Pipe Connection Thread Size: - 1” NPT - All models
except “J”
- 1” BSPT - “J” models
Models that meet CE Conformance:
FS4-3D-E
FS4-3J-E
FS4-3S-E
• This Control: is for continuous operations
is not electronic
has Type 1C action (micro
interruption on operation)
• LVD 73/23/EEC
• EMC 89/33/EEC
For applications with loads between 14mA and 3.7
Amps, power factors exceeding 0.65, an anticipated
system switch
operation rate of less than 5 times per
minute, and any one cycle greater than 3 seconds on
and 3 seconds off.
Additional suppression may be required for applications outside these ranges.
• Declaration of Conformity
Available on request.
SPECIFICATIONS
CE Circuit Rating
7.4 (7.4)/120~ 0.3/120=
3.7 (3.7)/240~ 0.15/240=
Motor Switch Rating (Amperes)
Voltage Full Load Locked Rotor Pilot Duty
120 VAC 7.4 44.4
125 VA at
240 VAC 3.7 22.2
120 or 240 VAC
50 or 60 cycles
ELECTRICAL RATINGS
FLOW RATES
Flow rates required to activate flow switch are shown
in chart below. The values are calculated for sensing
water (potable, non-polluted) in a horizontal pipe.
Settings will vary when used to sense flow of other
fluids or if located in a vertical pipe.
3
NOTE: DO NOT USE LIQUID FLOW SWITCHES
ON SYSTEMS WITH FLOW VELOCITY
GREATER THAN 10 FEET PER SECOND
(3 METERS PER SECOND).
Values are ±10%
Pipe Mode of Operation
Size NPT Flow No Flow
in. (mm) Settings gpm (lpm) gpm (lpm)
Factory or
1 (25)
Minimum
6 (22.7) 3.6 (13.6) 27
Maximum 10.2 (38.6) 9.2 (34.8) (102)
Factory or
1
1
⁄4
(32)
Minimum
9.8 (37.1) 5.6 (21.2) 47
Maximum 16.8 (63.6) 15 (56.8) (178)
Factory or
1
1
⁄2
(40) Minimum 12.7 (48.1) 7 (26.5) 63
Maximum 23 (87.1) 19.5 (73.8) (239)
Factory or
2 (50) Minimum 18.8 (71.2) 9.4 (35.6) 105
Maximum 32.8 (124.1) 24 (90.8) (398)
Factory or
2
1
⁄2
(65) Minimum 24.3 (92) 11.6 (43.9) 149
Maximum 42.4 (160.5) 37.5 (141.9) (565)
Factory or
3 (80) Minimum 30 (113.6) 12 (45.4) 230
Maximum 52.1 (197.2) 46.1 (174.5) (872)
Factory or
4 (100) Minimum 39.7 (150.3) 19.8 (74.9) 397
Maximum 73.5 (278.2) 64.2 (242) (1505)
Factory or
5 (125) Minimum 58.7 (222.2) 29.3 (110.9) 654
Maximum 115 (435.3) 92 (348.2) (2479)
Factory or
6 (150) Minimum 79.2 (300) 39.6 (150) 900
Maximum 166 (628.3) 123 (465.6) (3411)
Max. Flow
Rate gpm
(lpm) w/o
Paddle Damage
Loading...