Programmable Logic Control (PLC) 120 thru 800
Programmable Logic Control (PLC) manages
regeneration cycles by energizing and de-energizing air
control valves within PLC at 45-second intervals.
When PLC is initially powered on, it begins a startup
sequence cycling each dryer one time at five-second
intervals then continues to cycle dryers at 45-second
cycle intervals.
During operation, a light flow of air from ONE exhaust
port (muffler) is normal as this represents regeneration
cycle of desiccant. The air flow will switch from one
exhaust port (muffler) to the next one approximately 45 seconds in conjunction with PLC cycles.
Example: 120 cfm – 1 cartridge regenerates every 45 seconds as three cartridges continue to receive wet
air. Multiple row dryer systems will regenerate one cartridge from each row e.g., cartridge 1 row 1 -
cartridge 1 row 2, etc.
Dryer cycles produce a momentary burst of air from one SFD exhaust port (muffler). This is normal and
will occur each time SFD cycles.
Mounting
1.
Determine proper location for SFD as described in “General Mounting Instructions pg 7”
2.
Install wall strut with small slots next to wall and on top
3.
Mount SFD base assemblies into wall strut(s)
a.
120 cfm (1 row with 2 dryer units - 4 cartridges 1 PLC)
b.
200 cfm (1 row with 3 dryer units - 6 cartridges 1 PLC)
c.
240 cfm (2 rows with 4 dryer units - 8 cartridges 1 PLC)
d.
400 cfm (2 rows with 6 dryer units - 12 cartridges, 1 PLC
e.
600 cfm (3 rows with 9 dryer units - 18 cartridges, 1 PLC
f.
800 cfm (4 rows with 12 dryer units - 24 cartridges, 1 PLC
REMINDER
: Top rows of 240 – 800 cfm dryer systems have “T” fittings on side of dryer
Bottom row of dryers have 90º fittings on sides of dryers
4.
Assemble inlet and outlet manifolds to base assemblies making sure to apply an anti-seize
(included with dryer) to threads of each retainer bolt.
REMINDER:
Inlet and outlet ports may be
installed on right or left side of dryer to accommodate hose routing
5.
Connect high-pressure air lines to inlet and outlet ports of manifolds applying appropriate thread
sealant on air line fittings to prevent leaks
6.
PLC signal line connections:
a.
120 & 200 systems - connect first ¼” air line to 90º fitting located on primary unit die cast
aluminum manifold to PLC fitting identified ”Pilot”
(see “System Illustrations” pg. 43)
b.
Connect four (4) ¼” (120 cfm system) or six (6) ¼” (200 cfm system) air lines from signal
ports of PLC to fitting located on sides of dryers
c.
240 – 800 cfm systems - connect first ¼” air line to 90º fitting located on a primary units’ die
cast aluminum manifold to PLC fitting identified ”Pilot
(see “System Illustrations” pg. 43)
d.
Connect ¼” air lines from signal ports of PLC to “T” fitting on each side of dryers located on
top row(s) of dryer system (see “System Illustrations” pg. 43)
10
Содержание SFD
Страница 1: ...SFD Air Dryer Owner s Manual 10 09 2014...
