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INSTALLATION AND OPERATING INSTRUCTIONS 

 
 

ARM

flo

 E Series 

High Efficiency Circulator 

 

READ CAREFULLY BEFORE INSTALLING & OPERATING THE CIRCULATOR

 

 

INSTALLER

: PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE

 

 
You are about to install an ARMflo E Series circulator - a high-efficiency pump from Armstrong. ARMflo E Series 
circulators are designed for heating and cooling in hydronic, geothermal or solar systems, circulating water or 
ethylene or propylene glycol/water solutions. For pumping domestic (potable) water, Armstrong recommends the use 
of circulators with bronze body construction. 
 
The ARMflo E Series circulators are extremely efficient and quiet and utilize a state of the art permanently lubricated 
bearing system designed for many years of trouble-free operation. They feature a permanent-split capacitor motor 
with thermal protection. 
 

OPERATING LIMITS 

  Maximum operating pressure: 

150 psi (1034 kPa) 

  Maximum operating temperature:  All Standard Models 

–  230°F (110°C) 

   

Models Ending in -TE  –  150°F (65°C) 

 

  Electrical Rating:  For models with 1/6 hp motors: 120 V, 1 Phase, 60 Hz or 208 / 240 V, 1 Phase, 60 Hz 

 

For models with 2/5 hp motors: 120 V, 1 Phase, 60 Hz or 208 / 240 / 277 V, 1 Phase, 60 Hz 

 
When unpacking the circulator, inspect for any damage that may have occurred during transit. Check for loose, 
missing or damaged parts. 
 

THIS PUMP IS FOR INDOOR USE ONLY 

 

Before installing the circulator, proper installation practice recommends a thorough flush of the hydronic system, 
ensuring removal of all foreign materials. 

 
 

 

 

Warning! “Mount with motor shaft horizontal and terminal 
box above centerline (C

) only!” 

 
The circulator is supplied for “up” discharge. 
 
For alternate discharge orientation: 

1.  Loosen the 4 motor mounting bolts. 
2.  Rotate the volute to match piping orientation. 
3.  Observe flow direction arrow on volute. 
4.  Ensure volute gasket is properly seated. 
5.  Retighten mounting bolts evenly to 5lb-ft (6.7N-m).

 

6.  Ensure the impeller spins freely.

 

 

FILE NO.: 

10.84 

DATE: Jul. 

20, 

2010 

SUPERSEDES: 10.84 
DATE: 

Feb. 23, 2006 

Motor Shaft 

(internal) 

C

L

 

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