© Northern Factory Sales, Inc. 2021, All Rights Reserved. • www.NorthernRadiator.com
1. This versatile heater may be mounted either horizontally or vertically. Typical locations include floor, wall or under dash. Mark the inlet and outlet tube locations and cut
a hole through the vehicle’s floor. Grommets are included , but may not be required for below floor mounting. Mount the heater to the floor using the provided
mounting brackets.
2. Route the heater hose to the engine compartment. We recommend the heater hose follow the inside of the frame rails for protection from road debris. Wire ties or
clamps may be used to secure the hose to the frame. Please note that all hoses must clear all driveline or moving parts and must be securely fastened to the frame to
avoid potential damage to the hose and cooling system. In the engine compartment, locate where the existing heater hoses pass through the fire wall. On the engine
side of the fire wall, cut and insert the Y splicers in the existing heater hoses, as close to the firewall as possible. Secure all the Y splicer connections with hose clamps,
then install the new heater hose to the auxiliary heater. Avoid any sharp bends which may kink the hose and restrict proper flow. (See splicer diagram.)
3. Mount the switch panel in a convenient under dash location. Route power supply wire from fuse block to rocker switch, including inline 15 AMP fuse. Clip plug, then
connect the red, orange and yellow wires from the heater to the switch extending them where necessary. Finally, ground the black wire to the chassis of the vehicle.
We recommend all electrical connections are terminated or soldered and taped. (See the connection diagram below.)
Northern Factory Sales warranties its Heaters to be free from all defects in materials and workmanship for one year from the date of installation.
Any Heater claimed defective under this limited warranty should be forwarded to Northern Factory Sales, transportation charges prepaid, for inspection
and warranty determination.
Northern Factory Sales will not be responsible for heaters damaged from misuse or neglect. Any expense associated with a warranty replacement, including
but not limited to installation and transportation charges, are not covered under this warranty. This warranty provides for product replacement only. Any
attempt at local repairs automatically voids this limited warranty.
INSTALLATION INSTRUCTIONS:
WIRE CONNECTION DIAGRAM:
LIMITED WARRANTY
SPLICER DIAGRAM:
NOTE:
The low speed terminal is located behind the high
position due to internal switching.
FROM AUX
HEATER
OUTLET
TO AUX HEATER
INLET
HOT SIDE
RETURN SIDE
EXISTING
HEATER HOSE
POWER
SOURCE
15A FUSE
3 SPEED SWITCH
SWITCH
BLACK
YELLOW (Low)
M
B
L
C
RED (Medium)
ORANGE (High)
M
H
FRAME OF VEHICLE
