Armstrong s-55 User manual

File No: 10.801
Date: october 26, 2015
Supersedes: 10.801
Date: october 15, 2013
GOLD SERIES - PUMP LESS VOLUTE KITS
|
FOR SELECT 2, 3, 4, AND 5, AND 1050 SERIES IN-LINE CIRCULATOR
MODELS
|
INSTALLATION AND OPERATING INSTRUCTIONS
1.0 Application 1
2.0 Installation 1
3.0 Starting up 1
4.0 Lubrication 2
5.0 Seal replacement 2
caution
Always disconnect power supply from motor before
servicing.
1.0 application
Armstrong Gold series – Pump Less Volute kits may be used to
replace,upgrade, and renew all working parts of any compatible
3piece circulator. The kits are suitable for both hydronic fluid
and potable water applications. Refer to Armstrong cross refer-
ence information to determine compatibility.
2.0 installation
In-line circulators should always be installed with the shaft in
a horizontal position. The circulator should be mounted by the
volute pipe connections only. No other support for the circula-
tor should be used.
Circulator replacement should only be performed by qualified
personnel. To avoid personal injury or property damage, before
attempting circulator replacement:
1Hydraulically isolate the circulator from the system in which
it isinstalled.
2Disconnect / lockout power at the electrical panel.
3 Carefully alleviate pressure and drain the fluid from the
circulator.
4Avoid spillage of, or physical contact with, the system fluid.
To remove the original circulator:
1 Disconnect the power wiring at the terminal box.
2 Remove the screws that connect the sealed bearing
assembly tothe volute (casing).
3Pull the circulator straight out, avoiding impeller contact
with the inside of the volute.
4 Remove any remaining gasket from the mating surface of
the volute.
5Be careful not to damage gasket mating surfaces.
To install the new Gold Series – Pump Less Volute kit:
1Apply the new gasket (supplied) to the volute
mating surface.
2Position the kit with the oil filling cup located on top of the
sealed bearing assembly.
3 Mate the kit up with the original volute, ensuring the
gaskets seats squarely.
4 Ensure the impeller does not contact the inside volute
surfaces.
5 While holding the kit steady, start two screws, diagonally
opposed, to secure the mating parts.
6 Insert the remaining screws finger-tight, noting the gap
between the bearing body and volute.
7 Progressively tighten the mating screws in a diagonal
pattern. Avoid over-tightening.
8 Rotate the pump shaft at the coupler to ensure it turns freely
and impeller doesn’t bind.
9 Verify nameplate voltage before connecting power wiring.
3.0 starting up
The pump must be fully primed on start-up. Fill system piping
and pump body with liquid and vent complete system, turning
pump by hand to dislodge air from body. Make sure fittings and
drain valves are airtight, then add any additional fill required.

installation &
operating instructions
Gold series - Pump
Less Volute kits
2
Check motor electrics against available supply, then start pump
making sure rotation is correct. When viewed from motor end,
rotation is counter-clockwise on Models s-25 to s-46 and
h-32 to h-41. On all other models, rotation is clockwise. If
pressure does not develop, stop pump, re-check, vent and fill.
Never attempt to fill system when pump is running.
4.0 lubrication
caution
Do not put oil in the maintenance free PLVs. These
models contain mf in their item numbers and are
labelled: 'This bearing assembly contains perma-
nently lubricated bearings and does not need any
oiling or greasing'.
pump lubrication
Immediately after pump is installed and before running, slowly
add the oil (sae 30 non-detergent regular, supplied with
pump) to pump oil cup, located on top of bearing bracket:
s-25 to s-57, h-32 to h-54 and series 1050 (1b to 2b)¼oz.
At the start of each following heating season, lubricate with
sae 30 oil. For models s-25 to s-57,h-32 to h-54 and series
1050 (1b to 2b), add approximately ¼ oz. (Lubricate every six
months for high temperature or constant operation.)
motor lubrication
Gold series – Pump Less Volute motors are permanently
lubricated and require no maintenance.
5.0 seal replacement
Remove pump bracket from body. Remove the impeller, dam-
aged seal assembly, ceramic insert and rubber cup. Clean the
recess in bearing bracket coverplate and install a new retainer
cup and ceramic. Check the condition of the shaft sleeve. If
scored, replace the shaft assembly. Otherwise, clean shaft ex-
tension and polish sleeve with fine crocus cloth, using a rotating
motion, if required.
Press against coupler end of shaft to take up play while press-
ing new seal firmly against the stationary face. A slight amount
of clean vaseline may be put on shaft sleeve to assist installa-
tion. Press down firmly and evenly, using 2screwdrivers and
pushing against the 4ears of driving band (the metal ring
around rubber bellows), or around top outer edge of driving
band on models s-25 to s-57, h-32 to h-54 and series 1050
(1b to 2b).
Do not use spring washer on models s-25, s-35 and h-32
current style circulators, where recess to locate spring is pro-
vided on impeller hub.
Continue pressing against coupler end of shaft, re-mount
impeller and re-assemble the seal bearing assembly into body.
If necessary, install a new body gasket and clean gasket surface
of both volute and bracket.
caution
Before operating pump, carefully check:
1Is the pump primed?
2Is rotation correct?
3Is pump properly lubricated?
4Does the power supply agree with data on
motor nameplate?
5Is overload protection provided?
6Is the system clean?
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