Armstrong ASTRO 2 Guide D'installation Et D'utilisation

READ CAREFULLY BEFORE INSTALLING & OPERATING THE CIRCULATOR
You are about to install a pump model from the finest multi-speed wet
rotor circulator line on the market today. Armstrong's Model ASTRO 2
3-Speed circulators are designed for closed hydronic or potable water
systems. Their intended use is for circulating water or glycol solutions. For
pumping domestic water use non-ferrous no lead bronze or stainless steel
body pump construction.
The ASTRO 2 3-Speed is extremely quiet operating and is lubricated by
the system liquid being pumped by the circulator.
These circulators are designed to work at temperatures and pressures
up to 230°F (110°C) and 150 psi, respectively. For no lead bronze and
stainless steel pumps used in potable water systems, it is recommended
that the operating temperature of the fluid be kept as low as possible
(i.e. below 150°F/66°C) to avoid precipitation of calcium.
When unpacking the circulator, inspect for any damage that may have
occurred during transit. Check for loose, missing or damaged parts.
INSTALLING
We recommend that any soldering be done before the pump is actually
installed. This will eliminate the possibility of solder dropping into the
pump body.
Thoroughly flush the system out before installing the circulator.
Before Installing, check that the flow direction of the water through the
pump body matches the arrow on the circulator body. The circulator is
supplied for up discharge installation.
Install the circulator in either the outlet or inlet line to the boiler or hot
water heater. It is important to install these circulators with the split
between the circulator body and the motor in a vertical position. This
ensures efficient operation. See examples.
RIGHT
The circulator shaft must always be in a horizontal position. (The piping
can be in a horizontal or vertical run.) Isolation valves should be installed
on the discharge and suction side of the pump to facilitate service.
Terminal Box
Always install the circulator with the terminal box above or beside the
motor. If the terminal box is under the motor as initially mounted, remove
the motor mounting screws and rotate the motor to the proper position.
(See example.)
Ensure the gasket is intact and seated
before evenly retightening the mounting
screws. To ensure the rotor still spins
freely, temporarily remove the plug
(located in the middle of the nameplate),
insert a flat head screwdriver into the slot
in the end of the rotor shaft and turn.
DO NOT HANG ITEMS OR ARTICLES OF CLOTHING ON THE
PUMP AS IT MUST BREATHE AIR. DO NOT OPERATE THE
CIRCULATOR WITHOUT THE MOTOR PLUG INSTALLED.
INSTALLATION AND OPERATING INSTRUCTIONS
WRONG
ASTRO 2 3-SPEED CIRCULATORS
Electrical Wiring
The electrical wiring must be installed strictly in accordance with
National Electrical Code, Local Codes and regulations.
A. Electrical installation should be conducted be a qualified electrician.
B. Always make sure electric power is disconnected before wiring
the circulator.
Motor is designed for 60 Hz, 1 phase, 115 Volt power.
Wire shall be 14 to 16 gauge solid wire or 16 to 18 gauge stranded wire.
To wire, loosen the screw from the terminal box cover and remove the
screw and cover.
Insert wires through supplied liquid-seal connector (installed) or included
1/2" NPT adaptor.
Strip 3/16" of insulation from the ends of the three wires to be connected.
To insert the wires into the terminal strip, flip the terminal lever away
from the wire opening and press down firmly. Insert the stripped wire
into the opening and release the lever. Tug on the wire gently to ensure
it is secured.
Connect the hot wire to terminal "L", the neutral wire to
terminal "N", and the ground wire to terminal
Tighten the terminal box cover.
Motor is thermally protected so overload protection is not necessary. All
that is required is a fused plug or circuit breaker in the power line.
Electrical information can be found on the nameplate of the motor.
CHECK VALVE REMOVAL
1. Insert one end of a screw driver into the space
between the check valve and the outlet of the
pump.
2. Gently Pry on the other end of the screw drive
to remove the check valve.
START UP
These circulators are maintenance free. Self-lubricated by the system
fluid, these circulators have no seals to leak or coupling to break.
A proper installation practice recommends to thoroughly flush the
system clean of all foreign materials prior to installing the circulator.
Fill the system before starting.
Speed setting of Astro 2 3-speed circulators:
The speed of these pumps can be adjusted with a 3-speed rotary switch.
On speed setting 1, the pump operates at approx. half the performance
of the speed setting 3 (maximum speed) and consumes about half the
power of full speed operation.
WARNING: Never operate the circulator dry as permanent damage may
occur. Never shut off the discharge or restrict suction flow while
the circulator is operating.
The venting of the rotor chamber may be done automatically. However,
to assure proper and faster venting of this circulator, we recommend the
manual venting procedure as follows:
1. Place a container under the back of the circulator to catch any
water that may run out.
2. Be sure power to the circulator is off at the fuse or circuit breaker.
3. Loosen plug on the back of the motor but do not remove.
4. Continue until water appears.
5. After a sufficient amount of water free of air bubbles has passed,
retighten the plug.
6. The circulator can now be started.
FILE NO: 10.89
DATE: May 10, 2010
SUPERSEDES: 10.89
DATE: Mar. 05, 2010
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