Derale Performance Single Stage Elctric Fan Thermostat - Manual

16730-16731-InstructionSheet
Derale Performance, Los Angeles, CA 800.421.6288 www.derale.com
INSTALLATION INSTRUCTIONS
SINGLE STAGE ELECTRIC FAN THERMOSTAT
PART # 16730 & 16731
WIRING
Before starting, disconnect the Negative (-) cable on the
vehicles battery.
Using the Blue Female Connector, Blue
Wire Tap Connector and Wire provided, attach the remaining
Thermostat Switch Lead to a Positive (+) switched ignition
source.
Attaching this wire directly to a 12V non-switched
source will allow the fan to run after the vehicle has been
turned off which could effect the vehicles battery performance.
See Diagrams # 2
Thermostat Switch -
Warning:
Diagram #1
Please read these instructions completely before beginning installation
THERMOSTAT PROBE INSTALLATION
Placement: generally
1/8” NPT port installation -
3/8” NPT port installation -
Locate a port on the vehicle, found on the
vehicles radiator, manifold or water outlet.
Using Teflon Tape or suitable sealant
install the Thermostat Switch into the port on the vehicle.
Using Teflon Tape or suitable sealant
install the 3/8” x 1/8” NPT Reducer Bushing into the 3/8” NPT port on
the vehicle. Using Teflon Tape or suitable sealant install the Thermostat
Switch into the 3/8” x 1/8” NPT Reducer Bushing.
(See Diagram #1)
3/8”
NPT
3/8”
NPT
1/8”
NPT
1/8”
NPT
1/8”
NPT
1/8”
NPT
KIT CONTENTS
QTY. DESCRIPTION
1 1/8” NPT Thermostat Switch
1 3/8” x 1/8” Reducer Bushing
IMPORTANT
This single stage electric fan thermostat will control fans
with a MAXIMUM DRAW OF 15 CONTINUOUS AMPS.
TOOLS NEEDED
12V Test Light
Wire Stripper
Crimping Tool 5/8” Open End Wrench
11/16” Open End Wrench
Teflon Tape
Warning: Installation of accessories should only be undertaken by those with mechanical knowledge and are familiar with working on
vehicles. Always use eye protection (goggles, safety glasses or shield). Park the vehicle in a well lit area, on level ground and apply the
parking brake. Only work on a cold vehicle that has been sitting overnight, failure to do so will result in severe burns and injury. Before starting
the vehicle, make sure no tools or any other items are left under hood that could interfere with or be drawn into moving parts of the engine.
Failure to follow instructions can lead to severe damage and personal injury.
TROUBLE SHOOTING Q&A
Q: Why doesn’t the fan(s) turn on?
A: 1. Check all connections to make sure all contacts are crimped correctly.
2. Check all Ground (-) connections to make sure all paint is sanded off and you are getting a metal to metal contact.
Q: Why does the fan(s) run after the engine is turned off?
A: Check the wire going to the Thermostat Switch, this wire should be connected to a 12V Positive (+) switched ignition
source.
Diagram #2
Ground
Fan Motor
20Amp Fuse
12 Volt (+)
Ignition
Switch
Thermostat