Specifications

9
ViSSion® 20/20 Retrofi t Instructions • 35391SCRF
CAUTION
Do not route A/C and D/C wires together, this will
cause Electromagnetic Interferance. Failure to comply
may result in damage to equipment.
Step 14. If equipped with solenoids (15) (i.e. Danfoss Motorized Valve), route cables (16) from solenoids through
bottom left side of Vission 20/20 microcontroller (6).
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
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Figure 8. Solenoid Cable Routing
Step 15. To make following connections according to supplied wiring diagram, refer to Section 3.0 Field Wiring
Instructions.
3.0 Field Wiring Instructions
NOTE
This procedure defi nes steps required to wire Vission 20/20 microcontroller for
the following items: Compressor Motor Starter Auxiliary Contact, High Level
Shutdown, Oil Separator Heater(s), Oil Pump Start and Compressor Starter.
General fi gures, Figures 9, 10 and 11 are used for purposes of explanation, follow
supplied wiring diagram for detailed wiring.
Step 1. Control power of 115 VAC 50/60 HZ must be wired to left side of terminal blocks inside the Vission
20/20 cabinet. Line power (1A) shall be connected to 15-amp circuit breaker, CB1. Neutral (1N) is
connected to any N terminal blocks. Number of line power feeds required to panel is dependent upon
number supplied on compressor. Line power feeds for oil heaters are brought to additional 15-amp
circuit breakers, CB2A, CB2B, CB2C and CB2D. Neutrals for circuits (2N, 3N, 4N, and 5N) are connected
to terminal blocks labeled HTN2, HTN3, HTN4, and HTN5. Units with V-PLUS® oil cooling, L1 must
connected to fuse in V-PLUS panel, and L1A must be connected to terminal 2B.