Orion System SA E-BUS Controller - Manual (Page 15)

SA E-BUS Controller Technical Guide
Installation & Wiring
15
Entering Water Temperature Sensor Wiring
Figure 10: OE233 – Entering Water Temperature Sensor Installation & Wiring
Entering Water Temperature Sensor
The OE233 Entering Water Temperature Sensor must be wired as shown
in Figure 10 below for proper operation. The Entering Water Tempera-
ture Sensor is a 10K Type III thermistor sensor. The Entering Water
Temperature Sensor should be mounted in the entering water piping.
Place Between Pipe
And Sensing Element. Pipe Should
Be Clean And Smooth To Provide
Proper Thermal Contact With
Sensing Element.
Thermal Mastic
Secure Sensor Element And Thermal
Mastic Strip To Pipe With Supplied
Wire Tie. Be Sure To Tighten Wire Tie
Snugly To Ensure Good Thermal
Contact.
Butt Splice Or Wire Nut Wire Leads And
Extend Wire To Controller Terminals. Connect
One Wire Lead To Entering Water
Temperature Terminal (AI3) At The Controller.
Secure Other Wire Lead To Ground Terminal
At The Controller. See Note 3.
Notes:
1.)Sensor Should Be Mounted At
Location Along Pipe Length
That Best Represents Desired
Temperature Reading.
3.)All Wiring To Be In Accordance
With Local And National Electrical
Codes And Specifications.
2.)Sensing Element Shown
Mounted To Top Of Pipe. The
Sensor Element May Be Located
At Any Location Around Pipe.
Wire Tire
(Supplied)
Sensing Element
(Supplied)
Thermal Mastic Strip
(Supplied)
Entering Water Pipe
See Note 1 & 2.
Caution:
For Accurate Temperature
Readings It Is Necessary To
Place Insulation Over The
Sensor After Installation.
This Prevents The Ambient
Temperature From Affecting
The Sensor. Insulation
Should Cover The Sensor
And Extend 6“ to 12”
Beyond Each End Of The
Sensor.
Entering Water
Temperature Sensor
(Strap On)
AI3
GND
Be Sure Jumper Is Set
For THERM
On AI3 For Entering
Water Temperature Sensor
AI1
AI1 SET
A
I2 SET
AI3 SET
AI4 SET
AI5 SET
AI7 SET
AI2
AI3
AI4
AI5
AI7
SA E-BUS Controller
Entering Water Temperature Sensor
Note: No Additional Wiring
is Required For Dual Cabinet
Units.
NOTE: For Dual Cabinet Units, mount the Entering Water
Temperature Sensor in an Entering Water Piping area that is
common to both SA Units.