McDonnell Miller Series FS1 & FS1-W

For steam and hot water boiler with cold water feed.
Continuous maintenance of minimum safe water level, independent of electrical service.
Proportional feed action.
Quick hook-up fittings provided.
Quick change replaceable cartridge valve and strainer.
Maximum water supply pressure 150psi.
Maximum boiler pressure 25 psi.

Ordering Information
Model Number	Part Number	Description	Weight lbs.	Price
FS1 FS1-G FS1-J FS1-L FS1-W FS1-J-E FS1-W-E	113200 113250 113550 113560 113601 113551 113602	High sensitivity flow switch - 1/2" NPT body FS1w/ gold plated contacts FS1 w/ BSPT connections FS1 set @ 1.7 gpm FS1 w/ NEMA 4x enclosure FS1-J CE conformance FS1-W CE conformance	3.0 3.0 3.3 3.0 3.5 3.3 3.0	$206.00 $Call $Call $208.93 $229.53 $Call $Call
NOTE: Do not use liquid flow switches on systems with flow greater than 10 feet per second

Electrical Ratings
	Motor Switching Rating
Voltage	Full Load	Locked Rotor	Pilot Duty
120 VAC 240 VAC	7.4 3.7	44.4 22.2	125 VA at 120 or 240 VAC
Dimensions
A	B	C	D	E	F	G	H	J
3 3/4	2 5/8	1/2	7/8	3 13/16	3 3/16	4 7/16	1 1/4	1/2
Series FS1-W
Dimensions
A	B	C	D	E	F	G	H	J
3 3/4	2 5/8	1/2	7/8	3 13/16	3 3/16	4 7/16	1 1/4	1/2
Flow Rates
	Mode of Operation
Settings	Flow gpm	No Flow gpm	Max. Flow Rate gpm w/o paddle damage
Factory or minimum	0.41	0.24	9.48
Maximum	1.81	1.28	9.48
Values are +- 10%

FS1

FS1-W

Contact Us Directly:

Toll Free: 1-800-780-3776
Int'l Phone: 770-957-9599
Int'l Fax: 770-957-9563
E-Mail: Email Your Request

Mailing Address: Power Plus International
309 Westridge Parkway
McDonough, GA 30253