602400011500
Revision C
Page
15
of
24
Alarm
Pin
‐
out:
Pin No.
Alarm
Configuration
1
Low Pressure
Normally Closed (NC)
2
Low Pressure
Common (COM)
3
Low Pressure
Normally Open (NO)
4
High Pressure
Normally Closed (NC)
5
High Pressure
Common (COM)
6
High Pressure
Normally Open (NO)
7
Humidity
Normally Closed (NC)
8 Humidity Common
(COM)
9
Humidity
Normally Open (NO)
10
Run Time
Normally Closed (NC)
11
Run Time
Common (COM)
12
Run Time
Normally Open (NO)
Picture 5.5 – APD-D Series Site Grounding Studs
5.10
Site
Grounding
Studs:
For installations
requiring supplemental equipment earth
grounding, dual chassis ground studs are
provided. They are located on the top of
the unit near the rear left corner. The
studs are stainless steel with M6x1
threads spaced 0.625” center to center.
RFS offers a site grounding kit which
includes a ground lug and 2ea. stainless
steel M6x1 hex nuts and M6 star lock
washers. Examples of compatible lugs are
Thomas&Betts 54852BE and SitePro
GL610.
6
MAINTENANCE
If properly installed and operated, the
Dehydrator will not require any
maintenance for the length of the
warranty period. After that, the only
preventative maintenance requirements
are a check of the compressor’s input air
filter element, and dust & debris removal
once per year.
6.1
Taking
the
Unit
Out
of
Service
and
Removing
the
Lid:
6.1.1
Disconnect the input power cord from the
rear panel of the unit.
6.1.2
Close any isolation valves in the
distribution
system
to
hold
the
pressurized dry air in the system.
6.1.3
Disconnect the 3/8” air tube from the rear
panel of the unit. (See section 5.6).
6.1.4
If present, disconnect the site ground lug
from the top of the unit.
6.1.5
If present, disconnect the alarm connector
from the unit’s alarm port.
6.1.6
Move the unit to a flat work surface.
6.1.7
Remove all screws in the unit’s lid.
Carefully lift the lid no more than 4
inches, then pivot the lid towards the fan
and set it on the work surface.
Picture 6.1 – Lid Removal and Filter Location
6.1.8
Unplug the case fan connector from the
control board, and then the lid can be
moved if necessary.
