Armstrong ASTRO 225SSU-TA Manual de instrucciones de instalación y funcionamiento - Página 4
Navegue en línea o descargue pdf Manual de instrucciones de instalación y funcionamiento para Sistema de agua Armstrong ASTRO 225SSU-TA. Armstrong ASTRO 225SSU-TA 6 páginas. Hot water re-circulation system
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4
timer /discharge orientation (as shipped)
top timer access,
down discharge
5 Connect the hot water return line to the circulator, verifying
proper flow direction.
6 Attach the Aquastat by the integral spring clip, to either
the circulator inlet or discharge piping, whichever is most
convenient. Ensure the concave sensor face of the Aquastat
remains in direct contact with the pipe surface.
7 Supply water to the system and inspect connections and
components for leaks.
8 In order to purge the air from the recirculation line:
i
Make sure that the system is connected to the cold water
line and no fixtures are in use in the building.
ii Close the blow down valve.
iii Open the drain valve. Wait until all the air is purged from
the system and the water flow is steady through
the drain valve.
iv Close the drain valve.
Vent the circulator to remove trapped air:
v Place a one gallon or larger container under the circulator.
vi Loosen the brass plug in the end of the circulator with a
slotted screwdriver until water just begins to run out into
the container.
vii When the vented water is free of air bubbles, gently
retighten the brass plug until sealed.
viii Open the blow down valve.
The system is purged by air and ready for operation.
9 Verify that the timer's manual override switch is in the
off position.
10 Plug the power cord into a standard 115 V ac electrical
receptacle.
Astro 2 series
Hot water re-circulation system
side timer access,
horizontal discharge
11 To perform an initial system test for basic operation, see
Operation.
rotating the circulator casing
Prior to connecting the system to the hot water piping, if alter-
nate orientation of either the circulator discharge or clock timer
is required, proceed as follows:
1 Remove the four hex socket head screws that hold the cas-
ing to the circulator.
2 Gently pull the casing from the circulator body, taking care
not to damage the gasket or impeller.
3 Rotate the casing as required to meet circulator discharge
and clock timer orientation requirements.
4 Tighten the four hex socket head screws evenly, ensuring the
gasket seals the mating surfaces.
5 To verify the circulator shaft still spins freely:
i
Remove the plug from the end of circulator with a slotted
screwdriver.
ii Insert the screwdriver in the slot in the end of the shaft.
iii Ensure the shaft turns freely and smoothly in both
directions.
iv Replace the plug and gently tighten.
5 .0 oper ation
caution
Never operate the system 'dry' or permanent dam-
age may occur to the circulator. Never shut off the
water supply or restrict flow in any way while the
circulator is operating.
1 Verify water is present at the circulator.
2 Verify the power cord is plugged into an appropriate house-
hold electrical receptacle.
3 To continuously run the circulator or test for initial operation,
set the manual override switch to the on position and verify
the circulator operates smoothly and quietly.
4 To prevent circulator operation, such as for extended periods
that the residence will be V acated, set the manual over ride
switch to the off position.
5 For normal automatic operation, set the clock/timer as
required and move the manual override switch to the
auto position.