Intellitec
131 Eisenhower Lane North
Lombard, IL 60148
630 268 0010 / 1 800 251 2408
P/N 53-00778-100 Rev. 062003
www.Intellitecsve.com
Intellitec
Application Installation and Trouble Shooting Guide
Mini-Bus Multiplex System
AUXILIARY HEATER FAN CONTROL
Part No. 00-00771-000
SPECIFICATIONS
MAXIMUM CURRENT
MULTIPLE HEATER APPLICATIONS
BOOSTER PUMPAND OR HEAT VALVE APPLICATIONS
No Conn.
J2-1
Output C
10 A
Switched
15 & 16
J2-2
Output B
10 A
Switched
15
J2-3
Output A
10 A
Switched
16
J2-4
Temperature:
-40 C to 85 C ambient
Operating Voltage:
10.0 - 16.5 VDC
Over Voltage Protection:
24 VDC for 1 minute
+150 V for 150 milliseconds
- 300 V
The Auxiliary Heater Fan Control can be used to operate a two or three speed fan. It provides three 12 volt
independent outputs to select the speed of the fan. If the fan is a two speed unit, a three position rocker switch
can be installed in the Switch Adapter to select between the two speeds and off. Using this switch, the fan
should be connected to Outputs A & B. If a three speed fan is used, a four position rotary switch will have to be
connected to the 4 pin Mate-N-Lok on the Switch Adapter. This will allow the selection of three speeds. If the
Switch Adapter sends a signal out on Channel 16, Output A will supply power. If the Switch Adapter sends a
signal out on Channel 15, Output B will supply power. If the Switch Adapter sends signals out on Channels 15 &
16 simultaneously, Output C will supply power.
Multiple Auxiliary Heater Fan Controls can be used in applications that require more than one heater fan. Each
controller should have “Signal” and “Signal Ground” (J1 -2 and J1-3) connections from the Master Module.
Power to each Controller should be supplied from a separate fused source. Each fan will respond to the signal
from the Switch Adapter in the same way. (See page 27 for wiring diagrams)
The outputs A, B, and C can be tied together in parallel to operate a circulating pump or heat valve that will
operate at any speed of the fan. If using the 00-00853 or 00-00862 switch adapter, you will find a tab terminal
connection on the switch adapter. This connection provides a 0.4A output that can also be used to run a heat
solenoid valve when the heater fan switch is in the “on” position.
Max
l
Circuit Name
Current
Function
Channe
Conn
Page 6
