Electrical Connections — Domestic Hot Water
CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.
NOTE: Minimum 18 AWG, 105°C, stranded wire must be used for all low voltage (less than 30 volts) external connections to the unit. Solid conductors should not be used because they can cause excessive tension on contact points. Install conduit as appropriate. All high voltage wires must be the same size (105°C, stranded wire) as the ones on the unit or larger.
Installer action is required to electrically enable your Hi Delta heater to operate after making the power con- nections. You must make a connection on Terminal Block #3 for temperature control connections. This will be done based on the controller option selected with your heater order.
For operation with a
Consult the wiring diagram shipped with the heater in the instruction packet. The Stage 1 connections are for the remote tank control through the heaters 24 volt transformer. DO NOT attach line voltage to the Stage 1 connection. Before starting heater, check to ensure proper voltage to heater and pump.
SINGLE
STAGE
TANKSTAT
STAGE 1
CONNECTION
ATTACH STAGE 1 CONNECTIONS
ON HEATER TO THE SINGLE STAGE
TANKSTAT AS SHOWN IN THE DIAGRAM ABOVE.
Fig. 15: Single Stage Tankstat
TANKSTAT
STAGE 1 |
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| STAGE 2 CONNECTION OR |
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| STAGE 1 CONNECTION | |
CONNECTION |
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| OF HEATER 2 | |
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ATTACH STAGE 1 CONNECTIONS ON HEATER TO STAGE 1 CONNECTION ON TANKSTAT.
ATTACH STAGE 2 CONNECTIONS OR STAGE 1 CONNECTION OF HEATER 2 TO STAGE 2 CONNECTIONON TANKSTAT AS SHOWN IN THE DIAGRAM.
Fig. 16:
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