Vollrath 2-Well Hot & Cold Drop-In Wiring/Logic Diagram 120V

General Description

This document provides the wiring and logic diagram for the Vollrath 2-Well Hot & Cold Drop-In unit, operating on a 120V power supply. It details the electrical connections for heating elements, thermostats, switches, indicator lights, solenoids, and the condensing unit.

Diagram Overview

The diagram illustrates the electrical layout for two wells, each with independent heating and temperature control. It also shows the connections for the condensing unit, accessory drain valve actuators, and indicator lights.

Key Components and Connections:

• Power Input: 120V power cord connects to the system.
• Well 1 & Well 2: Each well features a heating element, a hot thermostat, a low water thermostat, and a hi-limit thermostat.
• Controls: Each well has a HOT/OFF/COLD switch and a 120V red indicator light for heating and a 120V blue indicator light.
• Condensing Unit: The diagram shows connections to the condensing unit, including its relay and cold control. A note indicates that the compressor electrical cover should be consulted for complete wiring.
• Accessory Drain Valve Actuators: Solenoid valves for drain actuators are included for both wells.
• Wiring: Various conduits (2-wire, 7-wire) and specific wire colors (RED, BLK, BLU, WHT, GRN) are indicated for connections.
• Junction Box: A junction box is shown, with specific wire connections noted.

Logic Diagram (Page 2):

The second page presents a ladder logic diagram, visually representing the control sequences. It shows how the thermostats, switches, and relays interact to control the heating elements and the condensing unit.

• L1 (Line): Represents the hot power connection.
• N (Neutral): Represents the neutral power connection.
• Components in Logic: Includes pilot lights, thermostats (HOT, LOW WATER, HI-LIMIT), heating elements, HOT/OFF/COLD switches, solenoid valves, accessory drain valve actuators, and condensing unit relays and controls.

Important Notes

• Viewer Orientation: Users are instructed to observe the viewer orientation note in each box within the diagram.
• Condensing Unit Wiring: For complete condensing unit wiring, refer to the diagram inside the compressor electrical cover.