Armstrong ASTRO 280CI 설치 및 운영 지침 매뉴얼 - 페이지 4

{카테고리_이름} Armstrong ASTRO 280CI에 대한 설치 및 운영 지침 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Armstrong ASTRO 280CI 8 페이지. 2, 3-speed circulators

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i n sta l l at i on &

op era t i ng i n str u ct i on s

These installation and operating instructions are applicable to the

following Astro 2 models.

astro 2 models

model

a stro 2 20ssu

a stro 2 25 ssu

a stro 2 25bs ½" sw t

a stro 2 25bs

" sw t

a stro 230ss

a stro 230ci

a stro 230ci-r

a stro 250ss

a stro 250ci

a stro 250ci-r

a stro 28 0ci

a stro 29 0ci

1.0 introduction

You are about to install a pump from the ﬁ nest multi-speed wet

rotor circulator line on the market today. The Armstrong Astro

2 3-speed circulators are designed for closed hydronic or pota-

ble 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 operates extremely quietly and is lubri-

cated 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. For no lead bronze

and stainless steel pumps used in potable water systems, it is

recommended that the operating temperature of the ﬂ uid be

kept as low as possible (i.e. below 150°f/66°c) to avoid precipi-

tation of calcium.

When unpacking the circulator, inspect for any damage that

may have occurred during transit. Check for loose, missing or

damaged parts.

Astro 2, 3-speed

circulator models

power supply

rating

33w, 0. 29a

83w, 0.6 9a

75w, 0.64 a

97 w, 0. 81a

115v, 6 0hz

97 w, 0. 81a

117 w, 0.9 8a

2 18w, 1.9a

2.0 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 ﬂ ush the system out before installing the circulator.

Before Installing, check that the ﬂ ow 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 effi cient operation.

See installation examples.

correct installations

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.

2.1 terminal box

Always install the circulator with the terminal box above or be-

side 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 retighten-

ing the mounting screw to 4.5 - 5.5 lb/ft (6 - 7.5 Nm). To ensure

the rotor still spins freely, temporarily remove the plug (located

in the middle of the nameplate), insert a ﬂ at head screwdriver

into the slot in the end of the rotor shaft and turn.

Retighten the plug to 1.5 - 2 lb/ft (2 -2.7 Nm). Ensure no water

leak at all sealing contacts.

incorrect installations