Table of Contents
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MountInG the enclosure
•
Select a location near the equipment to be controlled.
•
The surface should be flat, and be sufficiently wide and strong to hold the
control.
•
Keep the control away from extreme heat, cold, or humidity. Ambient
operating temperature is from 20 to 130°F.
•
Remove the Enclosure Wiring Cover from the control enclosure by removing
the two bottom screws.
•
Remove the Enclosure Display Module by removing the middle screws.
•
Screw the Enclosure Base to the surface through the upper and lower
mounting holes on the back of the enclosure.
•
Replace the Enclosure Display Module and replace the middle screws.
•
Do not replace the enclosure wiring cover until all wiring is done.
dIp swItch settInG
The Mini-MIG can accept inputs from temperature sensors, Dry Contact closure,
and a pulse/count sensor (input 16 only when activated with an Internet
ready control).
•
However, to activate input #16 to work as a pulse/count sensor, Dip
Switch 1 must be set to OFF and Dip Switch 2 must be set to ON.
In addition, the Startup menu option CNTR must be set to "Y". See
Startup Settings on page 4.
•
To activate input #16 to work as a temperature/switch sensor, Dip
Switch 1 must be set to ON and Dip Switch 2 must be set to OFF.
wIrInG
wIrInG the power (terMInals 1 and 2)
•
Bring the 120VAC 60Hz power wires through the left
bottom Knockout of the enclosure.
•
Class 1 voltages must enter the enclosure through a
different opening from any Class 2 voltage wiring.
•
Connect the hot line to terminal marked L 1.
•
Connect the neutral line to the terminal marked N 2.
•
Heat-Timer recommends installing a surge suppressor on the power source to the Mini-
MOD.
wIrInG teMperature sensors
•
Only use Heat-Timer Gold sensors.
•
The sensor wires can be extended up to 500' using a shielded 2-conductor cable (Belden
#8760 or equivalent). DO NOT ground the shield at the sensor but do connect at the Mini-
MIG using one of the terminals marked with an "O".
•
Do not run sensor wires in conduit with line voltage wiring.
•
Temperature sensors have no polarity.
wIrInG swItch sensors
•
The Switch sensor signal must be a Dry Contact only. No voltage can be placed across the Switch sensor input terminals
•
Do not run sensor wires in conduit with line voltage wiring.
wIrInG pulse/count sensors (Input#16 terMInals 37,38) only)
•
The pulse/count sensor signal must be a Dry Contact only. No voltage can be placed across the Switch sensor input terminals
•
Do not run sensor wires in conduit with line voltage wiring.
•
Make sure that Dip Switch 1 is OFF and Dip Swith 2 is ON.
•
Startup CNTR must be set to "Y".
Mini-MIG Installation Manual
Display Mounting Screws
Set as Temp/Switch Active
Set as Pulse/Count Active
class 1 voltages must enter the enclosure through a different
opening from any class 2 voltage wiring. heat-timer recommends
installing a surge suppressor on the power source to the Mini-MIG.
Mounting Base
Wiring Cover Mounting Screws
Input#16
Input#16
warnInG
Input 9
Input 10
Input 11
Input 12
23
24
25
26
27
28
29
3
Pulse
Input 13
Input 14
Input 15
Input 16
30
31
32
33
34
35
36
37
38
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