installation &
oper ating instructions
E.2 Series high efficiency
circulator
4
read carefully before installing
& operating the circulator
installer:
please leave this manual for
the owner’s use
You are about to install an
e.2
series circulator – a high–
efficiency pump from Armstrong.
e.2
series circulators are
designed for heating and cooling in hydronic, geothermal or
solar systems and circulating water, ethylene or propylene
glycol/water solutions. For pumping domestic (potable) water,
Armstrong recommends the use of circulators with bronze, or
stainless steel body construction.
The
e.2
series circulators are extremely efficient and quiet.
They 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.
1.0 operating limits
Maximum operating pressure:
150
psi (
1034
kPa)
Maximum operating temperature:
All standard models
230°f (110°c)
Minimum operating temperature:
All standard models
32°f (0°c)
Electrical rating:
For models with
T
hp motors
(100w)
:
120 v
,
1
phase,
60
Hz or
208
/
240 v
,
1
phase,
60
Hz, or
220-240
v,
50
Hz
For models with
Q
hp motors
(300w)
:
120 v
,
1
phase,
60
Hz or
208
/
240
/
277 v
,
1
phase,
60
Hz, or
220-240
v,
50
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.
This pump should be installed in a well lit location with good
access.
Installation personnel must be qualified for the task.
All personnel performing installation must wear appropriate
personal protective equipment
warning
Mount with motor shaft horizontal and terminal box
above centerline (
cl
) only!
The circulator is supplied for up-discharge.
diagram 1:
Installation Orientation
cl
motor shaft
(internal)
For alternate discharge orientation:
1
Loosen the four 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
5
lb/ft (
6.7
N/m)
6
Ensure the impeller spins freely
2.0 electrical wiring
The electrical wiring must be installed in strict ac-
cordance with the Canadian Electrical Code (Canada)
or the U.S. National Electrical Code (USA),or
bs7671
(Europe) as well as local codes and regulations.
1
Electrical installation should be conducted by a qualified
electrician. Installers should be equipped with proper
personal protective equipment.
2
The motors of
e.2
series circulators are designed for
1
phase,
60
Hz,
120 v 60
Hz,
240 v 60
Hz,
220-240 50
Hz service only.
(Please refer to the rating label on the circulator’s terminal
box to determine the correct voltage.)
3
Always make sure the electric power is disconnected and
locked out before wiring the circulator.
4
To wire, loosen the screw from the terminal box cover and
remove the screw and cover.
5
Install the appropriate size conduit end to one of the holes
on either side of the terminal box.
Summary of Contents for E.2 Series
Page 2: ......
