INSTALLATION
Mounting Holes
INSTALLATION
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 Harmony.
•Keep the Harmony panel away from extreme heat, cold, or humidity. Ambient operating temperature is from 20 to 120°F.
•Remove the panel from the metal enclosure by removing the top center screw and loosening the two bottom screws. Lift the panel out.
•Screw the enclosure to the surface through the mounting holes in the back of the enclosure.
•Return the panel to the enclosure, replace the top screw, and tighten the bottom two screws.
INPUT WIRING
SAFETY
GROUND
MUST BE
CONNECTED
1 | 2 | 3 | 4 |
LINE | NEUTRAL |
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SYS | |||||
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WIRING THE POWER
•Bring the 120VAC 60Hz power wires through a bottom Knockout (KO) of the enclosure. The left front KO is preferred.
•Class 1 voltages must enter the enclosure through a different opening from any Class 2 voltage wiring.
•Connect the hot line to terminal marked LINE.
•Connect the neutral line to the terminal marked NEUT.
•The green ground screw MUST be connected to earth ground.
Earth | 120VAC |
Ground | 60 Hz |
INPUTS |
| To Temperature | |
A1 | T | ||
Sensor Mounted in | |||
A2 | TEMP | ||
| Common Header | ||
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A3 | SHUTDOWN |
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A4 |
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A5 | + |
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A6 | S |
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A7 | NETWORK |
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A8 |
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A9 | SYSTEM |
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A10 | PROVE |
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INPUT WIRING
CONNECTING THE SYSTEM SENSOR
•The Harmony is designed to be connected to a temperature sensor for immersion in a 3/8ID well.
Contact the factory for additional temperature sensor options.
•Locate the sensor in a common header where it will register the output of all the stages in the flow and after all stages have fed the header. If the sensor can not read the output of all the stages, it will not be able to control the system properly.
•Temperature sensor wires can be extended up to 500’ by splicing with 18 gauge shielded wire (Belden #8760 or equivalent).
•Do not run sensor wire in conduit with line voltage.
•Temperature sensors have no polarity. Connect the wires from the sensor to the Harmony terminals marked TEMP- A1, A2.
•Connect the shield to the circled terminal
Note: Cut the shield wire at the sensor end.
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