ClimaCool SHC onDEMAND 30, 50, 70, 85 Manual - Manual (Page 43)

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Šƒ–‹•ƒ–‡”ƒ‡”ǫ
ƒ–‡”Šƒ‡”‹•ƒ’Š‡‘‡‘–Šƒ– ƒ‘ —”‹ƪ—‹†
systems with long pipes. Water hammer is a rapid change
‘ˆ’”‡••—”‡ ƒ—•‡†„›ƒ”ƒ’‹† Šƒ‰‡‹˜‡Ž‘ ‹–›Ǥˆ–Š‡ƪ‘™
Šƒ•„‡‡ƒ„”—’–Ž›•Š—–‘ơ†‘™•–”‡ƒǡ–Š‡’”‡••—”‡‹–Š‡
entire system is raised very quickly.
Šƒ–ƒ—•‡•ƒ–‡”ƒ‡”ǫ
Any action that can cause a rapid change in the velocity of
–Š‡ƪ‘™ ƒ•‡–‘ơƒ™ƒ–‡”Šƒ‡”ǡ•— Šƒ• Ž‘•‹‰
a downstream valve, pump stoppage, etc. Typically, for
short lengths of pipe (below 500 feet) downstream valves
that are closed within 1/10
th of a second can generate
a water hammer.
Šƒ–ƒƒ–‡”ƒ‡”‘ǫ
”‡••—”‡•’‹‡•ˆ”‘™ƒ–‡”Šƒ‡” ƒ”ƒ‹•‡ƪ—‹†’”‡••—”‡•
to dangerously high values. These pressure spikes can cause
serious damage to valves, pipes, strainers, joints, etc. The
CS strainer is rated to an absolute maximum pressure of 150
psi for bolted lid models, and 125 psi for clamp lid modes.
A water hammer pressure spike that raises the pressure
higher than the maximum rated pressure may result in
strainer damage, voiding the manufacturer’s warranty.
Šƒ–ƒ‘–‘”‡˜‡–ƒ–‡”ƒ‡”ǫ
There are certain precautions that can be taken to prevent
‘”†‡ ”‡ƒ•‡–Š‡‡ơ‡ –‘ˆ™ƒ–‡”Šƒ‡”ǤŠ‡ƒ††‹–‹‘‘ˆƒ
•—”‰‡–ƒ‘”ƒ ——Žƒ–‘”Ƥ––‡†™‹–Šƒ•—‹–ƒ„Ž‡’”‡••—”‡
relief valve and strategically located within the water
system may provide adequate protection against the
‡ơ‡ –•ˆ”‘™ƒ–‡”Šƒ‡”Ǥƒ”‡ˆ—Žƒ––‡–‹‘•Š‘—Ž†„‡
given to the design and control strategy for valves and
pumps so their actions do not invite a water hammer.
Strainer Options
—–‘ƒ–‹ ‹‡” Ž—•Šȋ Ȍƒ ƒ‰‡’–‹‘
Š‡ ǦǦ͕Ǥ͙ƪ—•Š˜ƒŽ˜‡’ƒ ƒ‰‡’”‘˜‹†‡•ƒƒ—–‘ƒ–‹
‡–Š‘†ˆ‘”ƪ—•Š‹‰ƒ™ƒ›–Š‡†‡„”‹• ‘ŽŽ‡ –‡†‹–Š‡
strainer’s reservoir. The power supply and timer controls for
the valve package are housed inside the ATF control box.
Š‡ ‘–”‘Ž• ƒ„‡’”‡Ǧ’”‘‰”ƒ‡†–‘•‡––Š‡ƪ—•Š‹‰
†—”ƒ–‹‘ƒ†–Š‡–‹‡‹–‡”˜ƒŽ„‡–™‡‡ƪ—•Š‡•Ǥ
›•–‡‘’‘‡–•
1. Timer based valve controller: (see Figure 17) sets the
ƪ—•Š†—”ƒ–‹‘ȋŽ‡‰–Š‘ˆ–Š‡ƪ—•ŠȌƒ†–Š‡ƪ—•Š
‹–‡”˜ƒŽȋ–‹‡„‡–™‡‡ƪ—•Š‡•ȌǤ
2. Electric Ball Valve: designed for dirty water use
(see Figure 17 and 18).
Figure 17
A
GREEN POINTER
INNER RING
(LENGTH OF FLUSH)
(FACTORY SET AT
8-SECONDS)
RED POINTER
OUTER RING
(TIME BETWEEN
FLUSHES)
(FACTORY SET AT
24-HOURS)
Figure 18
B
[email protected] POWER
FROM PDA OR 120V PLUG
IN TRANSFORMER
OPEN/CLOSE
INDICATOR
COVER-PLATE SCREWS
(4) IN CORNERS OF BOX
(TIMER BASED VALVE
CONTROLLER)
CONTROL SWITCH
Figure 19
ƒŽ˜‡’‡ ‹Ƥ ƒ–‹‘•ȋ‡‡ ‹‰—”‡͕͝Ȍ
A. Water-resistant polypropylene motor case
B. High torque motors with perma-lube gears
C. Open and close indicator
D. Stainless steel ball valve and hardware
E. Auto reset circuit breaker
F. 90 degree bi-directional rotation
G. Controller case