Electrical-All Sizes And Voltages; Electrical Connections - Hatco Imperial Série Manuel D'installation Et D'utilisation

INSTALLATION
Electrical — All Sizes and Voltages
General
Hatco Electric Booster Water Heaters are available for
operation on standard power systems. Check the specification
label for the proper power supply.
All internal electrical connections have been made at the
factory. See the "Circuit Breaker and Fused Disconnect Switch"
chart in the SPECIFICATIONS section for supply wire size,
fuse, breaker, and conduit recommendations. Consult local
codes for verification and compliance.
ELECTRIC SHOCK HAZARD:
• Unit must be installed by qualified, trained installers.
Installation must conform to all local electrical and
plumbing codes. Installation by unqualified personnel
will void the unit warranty and may lead to electric
shock or burn, as well as damage to unit and/or its
surroundings. Check with local plumbing and electrical
inspectors for proper procedures and codes.
• Turn OFF power at fused disconnect switch/circuit
breaker and allow unit to cool before performing any
cleaning, adjustments, or maintenance.
• Consult a licensed electrical contractor for proper
electrical installation conforming to local electrical
codes and the National Electrical Code (N.E.C.).
Units are voltage-specific. Refer to specification label
for electrical requirements before beginning installation.
Connecting unit to incorrect power supply will void
product warranty and may damage unit.
Imperial Series
Electrical
Knockout
WARNING
NOTICE
Electrical
Knockouts
Electrical Knockout Locations

Electrical Connections

1. Remove the front jacket cover screws, pull the cover
forward and remove the cover.
NOTE: On Imperial models, there is a hinged access panel
under the front jacket cover. Remove the bottom screw
and lift the panel up to expose the fuse blocks.
• On Mini-Compact models, remove front cover screws.
Ease cover forward and upward.
• On Compact models, the control box is under the front
hinged jacket cover.
2. Locate the terminal or fuse block(s) inside the unit.
NOTE: See "Circuit Breaker and Fused Disconnect Switch"
chart in the SPECIFICATIONS section for proper
connections and wire size.
NOTE: Only 6, 7, and 9 kW models, in 208 or 240 volt, can be
converted to single or three phase in the field. Refer to
the wiring diagram for proper wiring connections at the
terminal block.
3. Bring power leads from a properly sized disconnect
switch or circuit breaker through the knockout provided on
the unit. Connect leads to the terminal or fuse block(s).
USE COPPER WIRE ONLY. TIGHTEN CONNECTIONS
PROPERLY TO A MINIMUM OF 40 INCH POUNDS.
NOTE: Due to the rigors of transportation all connections
should be checked for tightness before heater is put
into operation.
4. Properly connect an equipment grounding connector to the
grounding lug (located near the supply terminals).
DO NOT turn on power to the booster heater until tank has
been filled with water and all air has been vented through
the dish machine rinse nozzles. Heating elements will burn
out in seconds if operated when not immersed in water.
5. Replace and secure cover(s).
Compact Series
18
English
CAUTION
Mini-Compact Series
Electrical
Knockout
Form No. EBOOSTERM-0321