Owners manual

6. Ignition controlled power source

Locate fuse box. Find a circuit that is "hot " when the key is in the "ON" position. NOTE: DO NOT

use the DRL or brake/taillight fuse! Attach the included fuse tap to fuse. Attach a female connector

to the thin red wire included and connect to the fuse tap. Trim the wire so that it will reach the VSC.

Attach pink female connector to end of wire and connect to terminal #9 on VSC.

7. Fan operation with air conditioning

Locate the wires coming from the A/C compressor. Determine which wire is ground and which is

positive by using a volt meter. Connect the positive wire to the supplied thin green wire by use of a

piggyback connector. Determine length needed to reach VSC and trim to length. Attach a pink female

connector to the wire. If the A/C compressor is activated by a positive (+) signal, connect this wire to

terminal #8 on VSC. If it is activated by a negative signal, connect to terminal #7 on VSC.

8. Temperature sensor

Locate the temperature sensor. Gently push probe through ﬁns in radiator as close to the upper

radiator hose as possible, leaving about ¼" of the probe protruding out of the core. The rubber cap

should be used when possible to insulate any of the probe coming through the front side of the radiator.

Determine length of wire needed to reach VSC. IMPORTANT: Strip the insulation back about 1" and

fold the wire onto itself to effectively double the thickness of the wire before connecting the pink female

connectors as shown in at right. Attach these

wires to terminals #10 & 11 on the VSC. Both

wires need to be connected but it doesn't matter

which wire goes to each terminal.

9. Manual Switch

If manual switches (Flex-a-lite #31148) have been

purchased, attach them as follows: To override

engine temperature signal and turn fans off, connect the switch to terminal #5 on VSC to send a

negative (-) signal. To override engine temperature signal and turn fans on, connect the switch to

terminal #6 on the VSC so that a negative (-) signal is sent.

When crimping the temp. probe

wires, strip back the insulation,

then fold wire back on itself to

double thickness

Install the temp. probe near the

inlet hose, leaving ¼" of the

probe protruding from the core.

rev. 11-20-07 98410 Page 3 of 4

Diagram 5 - Wiring detail for Model 410 fan

Diagram 6 - Wiring detail for Model 430 fan

Wiring Instructions Cont'd. 410 & 430