Hubbell Electric Heater Company J - Manual (Page 13)

OPTIONAL FIELD CONVERSION FROM SINGLE TO THREE PHASE OR
THREE TO SINGLE PHASE (J6 and J16 models in 6, 7, and 9 kW and 208 and 240
volts and J411 models only)
1. For J6 and J16 models:
a. Find the appropriate diagram for the unit to be converted in the following chart
titled “Wiring Chart”.
b. Re-wire the unit according to the diagram.
NOTE: The wire to be used for internal wiring must conform to SEW-2 or
PTFE (200°C) and must match the wire size currently in use. Contact the
factory for assistance, if required.
c. Contact the factory for correct labels. The factory will need the serial number
for proper identification.
2. For J411 models:
a. Re-wire the unit to desired configuration as indicated below.
Single-Phase 3-Phase
OPTIONAL 24-VOLT HEATER INTERLOCK ADAPTER
1. If desired, the heater can be wired to operate only when supplied with a 24-volt signal
through the heater interlock adapter. When no 24-volt signal is supplied through the
heater interlock adapter the heater is interlocked and will not energize. When
interlocked the display will show “HLd”. The heater will resume normal operation
when a 24-volt signal is re-applied through the heater interlock adapter.
2. To utilize this feature, plug the 24-volt heater interlock adapter into terminal J1 of the
control board and verify that the configuration is set to “Hon”, see the controller
operation section for further detail. The signal can be either AC or DC. However, if a
DC signal is utilized and the interlock feature does not operate, switch the two 24-volt
supply wires at the heater interlock adapter.
J1
13
To J1
To 24-Volt Signal
FINAL CHECKS
1. Check all connections for tightness.
2. Ensure that all the above steps are completed.
3. Remove the protective outer plastic covering from the sheet metal shell.
4. After the water is heated for the first time, monitor the water temperature as described
in Section III, Annual Inspection.