Armstrong Astro 220SSU075S-T Руководство по установке и эксплуатации - Страница 3
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Печатать страницуiv Connect power supply wires (black, white and green) to
the timer unit and to the circulator terminals (as shown
in fig.2). Note: Lead Wiring Specification - Minimum,
6" (152 mm) long, 14 awg, rated minimum 140°f (60°c).
Provided with r/c crimp connectors for attachment to
the ground.
v
Place the timer box cover
screws
4 . Insure that all lead wires are inside the timer
assembly.
vi Program the timer according to instructions provided
on page 5
vii Connect the unit to electrical supply.
viii Start the circulator
Assembly - Exploded Layout
6
5
1 Pump
2 Terminal box base
3 Terminal box cover
fig. 1 Astro 2 Series circulator and 24-Hour Timer assembly
drawing
timer
black
white
green
fig. 2 Astro 2 Series circulator and 24-Hour Timer wiring
diagram
5 using the 2 mounting
4
4
3
2
1
4 Mounting screw
5 Timer box cover
6 Timer module cover
green
white
black
Astro 2 series
Hot water re-circulation system
timer
black
white
white
aquastat
fig. 3 Astro 2 Series circulator and 24-Hour Timer and
Aquastat Control wiring diagram
2 Select a suitable location for system installation. Typically,
the Astro system is mounted near the hot water heater. The
inlet is connected to a return line from the furthest hot water
tap in the system. The discharge is connected into the hot
water heater drain line.
3 Ensure the following conditions are met when the system
is mounted:
i The circulator shaft is horizontal.
ii The clock/timer face is accessible for viewing
and adjustment.
iii The direction of water flow matches the arrow on the
circulator casing.
iv The piping is sufficiently rigid to support the system
in operation.
v Neither the clock/timer nor black terminal box is under
the circulator.
4 The Astro system is shipped fully assembled and tested to
suit either down discharge orientation with the clock timer
facing up, or horizontal discharge with the clock timer facing
the water supply side. For alternate orientation, see Rotating
the circulator casing.
cold water
supply line
hot water
tank
in sta ll a t io n &
o perating in struct io n s
green
white
black
hot water supply line
air vent (optional)
domestic hot
water return line
isolation valve
aquastat
timer
astro circulator
check valve
hose bib
(drain valve)
blow down valve
3