Flex-a-Lite 640 User Manual

MOJAVE HEATER

INST ALLATION INSTRUCTIONS

CAUTION!
This system operates with HOT W A TER: Use
all precautions necessary to ensure proper
installation.

DO NOT use in the presence of FLAMMABLE
liquid or gas.

DO NOT install without proper electrical fuse

USE APPROPRIATE 12V
POWER SOURCE

Black= Common Ground
Orange= High
Red= Medium
Yellow= Low

FUSE

12V, 15amp

WATER OUT

WATER IN

.

DO NOT BEND COIL TUBES

Mount Mojave Heater with #10 screws and washers to retain unit in location. Use SAE 5/8 hose
and clamps with water/antifreeze mix only.

Wiring Instructions

1. Drill a 7/16" hole to mount the switch. Be sure that there is room for the switch behind where you want to mount the
switch. Also make sure that you will not damage components by drilling this hole.

2. Match the corresponding color wire to the terminals on the switch. (See Diagram A).

3. Run the black wire from the fan to a ground, using the ‘lug’ connector and
screw provided.

4. Run a red wire from the ‘B’ terminal on the switch to the 15amp fuse holder provided.

Then continue the red wire from the fuse holder to the fuse panel, and a keyed

positive source. This installation will operate the fan only when the ignition
is turned on.

5. Remove one nut on the switch and
pass the end of the switch through
the hole drilled in step 1. Turn the
nut down finger tight, then with a
9/16" wrench, tighten another
quarter turn, while holding the
back of the switch.

6. Attach the knob.

Red Wire

Positive source
from fuse panel,
keyed on.

Rotary Switch

Black Wire
to Ground

Red Wire

Orange Wire
Y ellow Wire

Diagram A

The Flex-a-lite Limited Warranty

Flex-a-lite Consolidated, 7213-45th St. Ct. E., Fife, WA 98424, Telephone No. 253-922-2700, warrants to the original purchasing user, that all Flex-a-lite products to be free of defect s in material and
workmanship for a period of 365 days (1 year) from date of purchase. Flex-a-lite products failing within 365 days (1 year) from date of purchase may be returned to the factory through the point of purchase,
transportation charges prepaid. If, on inspection, cause of failure is determined to be defective material or workmanship and not by misuse, accidental or improper installation, Flex-a-lite will replace the fan
free of charge, transportation prepaid. Flex-a-lite will not be liable for incidental, progressive or consequential damages. Some states do not allow the exclusion or limitaion of incidental or
consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights and you may have other rights, which vary from state to state.
The Flex-a-lite warranty is in compliance with the Magnuson-Moss Warranty Act of 1975.

rev. 09-26-05 part no. 99857