Install Instructions

CAUTION: ALWAYS DISCONNECT POWER SUPPLY FROM MOTOR BEFORE SERVICING.
INSTALLATION
For convenience, Armstrong Circulators generally are installed in
vertical pipelines, but may be changed easily on the job for horizontal
pipelines or for opposite flow directions. To make the change, remove
the body capscrews, taking care body gasket is kept in position, and
rotate body to desired direction at 90° or 180° from the original
position.
With arrow on body pointing in direction of flow, insert body capscrews
and tighten evenly. (On Models S-25 to S-57, H-32 to H-54 and Series
1050 (1B to 2B), a gap between bearing bracket and pump body
(volute) is normal. Do no over tighten body capscrews!) Turn pump
shaft manually at coupler to make sure shaft turns freely and impeller
does not rub in body. Always install with motor shaft in a horizontal
position with pump oil cups or oil well cover on top.
Models S-25 to S-46 and H-32 to H-41 are shipped for down-
discharge. All other models are shipped for up-discharge as pumps of
this size usually are installed to pump upward on hydronic systems, so
the point of zero pressure change - namely, the compression tank
connection - can be made easily to the system on the suction side of
the circulator.
The pump should be installed in a position to permit proper lubrication
and servicing. Motor and bearing bracket are to be kept free of
insulation. Pump and motor unit are designed to be supported by the
inline piping only. Do not support in any other manner. A height of
approximately 4 feet above floor is recommended. When placing
pump between flanges, tighten flange bolts evenly and do not tighten
excessively.
Gate valves should be installed on discharge and suction side of pump
to facilitate service. On larger pump sizes, a check valve should be
located on discharge side of pump between pump body and gate
valve to prevent damage due to water hammer.
SYSTEM CLEANLINESS
Before starting the pump, the system must be thoroughly cleaned,
flushed and drained, then replenished with clean liquid. Welding slag
and other foreign materials, "stopleak" and cleaning compounds,
excessive or improper water treatment - all are detrimental to the
pump
internals. Guarantee will be void if any of these conditions are
allowed is exist. (Refer to File No. 6090.645 Design and Care of
Closed Hydronic Systems.)
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.
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.
LUBRICATION
CAUTION: STOP MOTOR BEFORE LUBRICATION, DO NOT OVER-
OIL OR SPILL ON RESILIENT MOTOR RINGS. DO NOT FORCE OIL
INTO CUPS, AND STOP IF CUP FILLS BEFORE ADDITION OF
SPECIFIED AMOUNT.
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) 1/2 oz.
S-69, H-63 to H-58,
Series 1060 (1-1/2D to 3D) 3-3/4 oz.
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 ½ oz. (Lubricate every 6 months for high
temperature or constant operation.) On Models S-69, H-63 to H-68 and
Series 1060 (1-1/2D to 3D), be sure oil is visible at the top and center
of window on side of bracket and maintain this level at all times.
MOTOR LUBRICATION
CAUTION: STOP MOTOR BEFORE LUBRICATING. DO NOT
OVER-OIL OR SPILL ON RESILIENT MOTOR RINGS.
This motor has been lubricated properly at the factory. At the start of
each following heating season, however, on motors with oil cups, add
15 drops SAE 30 non-detergent oil to each motor cup.
If motor is fitted with grease fittings, follow the motor manufacturer's
recommended procedure. Motors without oil cups or grease fittings are
custom-greased for several years operation and require little or no
attention.
SEAL REPLACEMENT
Remove pump bracket from body. Remove the impeller, damaged 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 extension and polish sleeve with fine crocus
cloth, using a rotating motion, if required.
Press against coupler end of shaft to take up play while pressing new
seal firmly against the stationary face. A slight amount of clean
vaseline may be put on shaft sleeve to assist installation. Press down
firmly and evenly, using 2 screwdrivers and pushing against the 4 ears
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 provided 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:
1. IS THE PUMP PRIMED?
2. IS ROTATION CORRECT?
3. IS PUMP PROPERLY LUBRICATED?
4. DOES THE POWER SUPPLY AGREE WITH DATA ON
MOTORNAMEPLATE?
5. IS OVERLOAD PROTECTION PROVIDED?
6. IS THE SYSTEM CLEAN?
FOR DOMESTIC WATER SYSTEMS USE BRONZE BODY PUMPS.
INSTALLATION AND OPERATING INSTRUCTIONS
IN-LINE CIRCULATING PUMPS
MODELS S-25 to S-69, H-32 to H-68, and Series 1050 & 1060
FILE NO: 10.80
DATE: Sept. 25, 2006
SUPERSEDES: 10.80
DATE: Mar. 10, 2003
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