PAGE 1
November 2008
P/N 32-0227
Rev. C
INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS
FOR
FP-3 FREEZE PROTECTION KIT
P/N
83-0762
FOR TURBO-COOL AFTERCOOLERS
MODELS
AC50-2&3 THRU AC130-2&3
(115-1-60 & 230-1-60 VOLTAGES)
WARNING
BEFORE STARTING INSTALLATION OR MAINTENANCE PROCEDURES, TURN OFF ELECTRICAL POWER AND
COMPLETELY DEPRESSURIZE THE AFTERCOOLER. FAILURE TO HEED THIS WARNING MAY RESULT IN SERIOUS
PERSONAL INJURY AND/OR DAMAGE TO THE UNIT.
NEVER REMOVE, REPAIR, OR REPLACE ANY ITEM ON THE AFTERCOOLER WHILE IT IS PRESSURIZED.
WHEN INSTALLING THIS KIT, ALWAYS COMPLY WITH THE NATIONAL ELECTRICAL CODE AND ALL OTHER
APPLICABLE FEDERAL, STATE AND LOCAL CODES.
1.2 THIS KIT INCLUDES:
1.
Electronic temperature controller
2.
Copper 1/2" NPT thermowell w/clip
3.
Two (2) cord grip connectors
4.
6
'
long heat tape, w/ thermostat
5.
3/8" conduit straight connector
6.
Junction box cover plate with a 7/8" DIA hole
7.
Six (6) feet of 3/8" flexible conduit
8.
Four (4) #8-18 x 3/4" self tapping screws
9.
Four (4) Seal fittings for connectors
10. 30
'
long roll of insulation wrap
11. Seven (7) wire nuts (yellow)
12. 3/8" 90 Degree elbow connector
13. Temperature sensor
14. Heat conductive compound
1.3 ADDITIONAL ITEMS REQ'D (not supplied):
Wire
Pipe sealant
Models AC-50 & AC-60
One (1) 1" NPT tee
One (1) 1" NPT close nipple
One (1) reducer 1" x 1/2" NPT
Models AC-70 thru AC-100
One (1) 1-1/2" NPT tee
One (1) 1-1/2" x 1/2" NPT bushing
Models AC-110 thru AC-130
One (1) 2" NPT tee
One (1) 2" x 1/2" NPT bushing
FIGURE 1-A ITEMS INCLUDED WITH THIS KIT
SECTION 1
INTRODUCTION
1.1 DESCRIPTION OF OPERATION
The FP-3 Freeze Protection Kit is designed to prevent aftercooler freeze up when the ambient temperature is near or below
freezing, 32
o
F (0°C).
The FP-3 has a electronic temperature controller with a NEMA 4X rating. The temperature sensor and thermowell mount
into the piping on the outlet side of the aftercooler. When the temperature of the compressed air system falls to 35
o
F, the
controller will automatically turn OFF the fan(s). The controller is set for a 5
o
F dead band to prevent rapid fan cycling (fan will
turn off at 35°F and on at 40°F).
A 6 foot heat tape and 30 feet of insulation wrap are provided to wrap around the separator. The heat tape is equipped with
its own internal temperature control. The heat tape and insulation provide additional freeze-up protection.
